From bf4fa0091fe250e81fabeee195e02eb8ed9ad87e Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Wed, 16 Jul 2014 15:29:41 +0200
Subject: [PATCH 01/21] Update misc.js

add parseUnit function to normalize mm,cm,in,pt,pc to pixels.
res is setted to 96dpi is not real screen resolution dependant.
---
 src/util/misc.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/util/misc.js b/src/util/misc.js
index b7c7365e8e6..ecf8be8e45c 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -132,6 +132,31 @@
       return parseFloat(Number(number).toFixed(fractionDigits));
     },
 
+    parseUnit: function(value) {
+      var DPI = 96;
+      var unit = /\D{0,2}$/.exec(value);
+      var number = parseFloat(value.slice(0,-unit[0].length));
+      switch(unit[0]){
+        case 'mm':
+	  	    return number * DPI / 25.4;
+          break;
+        case 'cm':
+          return number * DPI / 2.54;
+          break;
+        case 'in':
+          return number * DPI;
+          break;
+        case 'pt':
+          return number * DPI / 72; // or * 4 / 3
+          break;
+        case 'pc':
+          return number * DPI / 72 * 12; // or * 16 
+          break;
+        default:
+          return number;
+      }
+    },
+
     /**
      * Function which always returns `false`.
      * @static

From 0d4320c01847d18d2d3dc5c994ca630660a8cddf Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Wed, 16 Jul 2014 15:34:54 +0200
Subject: [PATCH 02/21] Update parser.js

Use parseUnit to normalize pt,pc,mm,in,cm to px.
---
 src/parser.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/parser.js b/src/parser.js
index 2f893185ab5..2bbc517c730 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -12,6 +12,7 @@
       capitalize = fabric.util.string.capitalize,
       clone = fabric.util.object.clone,
       toFixed = fabric.util.toFixed,
+      parseUnit = fabric.util.parseUnit,
       multiplyTransformMatrices = fabric.util.multiplyTransformMatrices,
 
       attributesMap = {
@@ -53,7 +54,7 @@
   }
 
   function normalizeValue(attr, value, parentAttributes) {
-    var isArray;
+    var isArray = Object.prototype.toString.call(value) === '[object Array]';
 
     if ((attr === 'fill' || attr === 'stroke') && value === 'none') {
       value = '';
@@ -82,10 +83,10 @@
     }
     else if (attr === 'originX' /* text-anchor */) {
       value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';
+    } else {
+      var parsed = isArray ? value.map(parseUnit) : parseUnit(value);
     }
 
-    isArray = Object.prototype.toString.call(value) === '[object Array]';
-
     // TODO: need to normalize em, %, pt, etc. to px (!)
     var parsed = isArray ? value.map(parseFloat) : parseFloat(value);
 

From bd4c7a0c4d85df9eb427d7a74bb073c2440dbabd Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Wed, 16 Jul 2014 18:56:10 +0200
Subject: [PATCH 03/21] Update parser.js

---
 src/parser.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/parser.js b/src/parser.js
index 2bbc517c730..1db6ce25cfb 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -84,12 +84,10 @@
     else if (attr === 'originX' /* text-anchor */) {
       value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';
     } else {
+      // TODO: need to normalize em, %, pt, etc. to px (!)
       var parsed = isArray ? value.map(parseUnit) : parseUnit(value);
     }
 
-    // TODO: need to normalize em, %, pt, etc. to px (!)
-    var parsed = isArray ? value.map(parseFloat) : parseFloat(value);
-
     return (!isArray && isNaN(parsed) ? value : parsed);
   }
 

From d78996194b5f5310888d470b905a5b310af8bd78 Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 00:37:27 +0200
Subject: [PATCH 04/21] Update misc.js

---
 src/util/misc.js | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/util/misc.js b/src/util/misc.js
index ecf8be8e45c..21384c455a4 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -133,24 +133,23 @@
     },
 
     parseUnit: function(value) {
-      var DPI = 96;
-      var unit = /\D{0,2}$/.exec(value);
-      var number = parseFloat(value.slice(0,-unit[0].length));
-      switch(unit[0]){
+      var unit = /\D{0,2}$/.exec(value),
+          number = parseFloat(value.slice(0,-unit[0].length));
+      switch (unit[0]) {
         case 'mm':
-	  	    return number * DPI / 25.4;
+          return number * fabric.DPI / 25.4;
           break;
         case 'cm':
-          return number * DPI / 2.54;
+          return number * fabric.DPI / 2.54;
           break;
         case 'in':
-          return number * DPI;
+          return number * fabric.DPI;
           break;
         case 'pt':
-          return number * DPI / 72; // or * 4 / 3
+          return number * fabric.DPI / 72; // or * 4 / 3
           break;
         case 'pc':
-          return number * DPI / 72 * 12; // or * 16 
+          return number * fabric.DPI / 72 * 12; // or * 16 
           break;
         default:
           return number;

From 81092715c16b8dac8c9f973c84f1e18f0d7a6d72 Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 00:38:55 +0200
Subject: [PATCH 05/21] Update misc.js

added missing space.
---
 src/util/misc.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/misc.js b/src/util/misc.js
index 21384c455a4..654ef0de4c5 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -134,7 +134,7 @@
 
     parseUnit: function(value) {
       var unit = /\D{0,2}$/.exec(value),
-          number = parseFloat(value.slice(0,-unit[0].length));
+          number = parseFloat(value.slice(0, -unit[0].length));
       switch (unit[0]) {
         case 'mm':
           return number * fabric.DPI / 25.4;

From d34f970ffba4b702fe851af2b91d7e1911a38b1d Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 00:42:31 +0200
Subject: [PATCH 06/21] Update misc.js

---
 src/util/misc.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/misc.js b/src/util/misc.js
index 654ef0de4c5..31b9cf322c8 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -4,6 +4,7 @@
       atan2 = Math.atan2,
       PiBy180 = Math.PI / 180;
 
+  fabric.DPI = 96;
   /**
    * @namespace fabric.util
    */

From 0bb156f30889e2947c25af5a44558188f18154a5 Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 07:44:03 +0200
Subject: [PATCH 07/21] Update misc.js

it had some problem with len of string 0 and slicing from 0 to -0 , or calculating len of ''.
now is ok, rects went crazy and i didn't notice.
---
 src/util/misc.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/misc.js b/src/util/misc.js
index 31b9cf322c8..0a01d60c833 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -135,7 +135,7 @@
 
     parseUnit: function(value) {
       var unit = /\D{0,2}$/.exec(value),
-          number = parseFloat(value.slice(0, -unit[0].length));
+          number = parseFloat(value.slice(0, unit.index));
       switch (unit[0]) {
         case 'mm':
           return number * fabric.DPI / 25.4;

From 306a040fef4114478e96f1480bcb8c0f5ce0d2fb Mon Sep 17 00:00:00 2001
From: Stefan Kienzle <stefankienzle.de@gmail.com>
Date: Thu, 17 Jul 2014 13:28:55 +0200
Subject: [PATCH 08/21] Fix initialization of viewportTransform array Add unit
 tests JSDoc tweaks

---
 src/static_canvas.class.js | 15 ++++++++-------
 test/unit/canvas_static.js | 14 +++++++++++++-
 2 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/src/static_canvas.class.js b/src/static_canvas.class.js
index f6ab0fcf41d..841fb68c0ab 100644
--- a/src/static_canvas.class.js
+++ b/src/static_canvas.class.js
@@ -138,11 +138,10 @@
      * @type Array
      * @default
      */
-    viewportTransform:      [1, 0, 0, 1, 0, 0],
+    viewportTransform: [1, 0, 0, 1, 0, 0],
 
     /**
      * Callback; invoked right before object is about to be scaled/rotated
-     * @param {fabric.Object} target Object that's about to be scaled/rotated
      */
     onBeforeScaleRotate: function () {
       /* NOOP */
@@ -429,6 +428,8 @@
 
       this.lowerCanvasEl.style.width = this.width + 'px';
       this.lowerCanvasEl.style.height = this.height + 'px';
+
+      this.viewportTransform = this.viewportTransform.map(function(item) { return item; });
     },
 
     /**
@@ -471,8 +472,8 @@
      * @return {fabric.Canvas} instance
      * @chainable true
      */
-    setWidth: function (value) {
-      return this._setDimension('width', value);
+    setWidth: function (width) {
+      return this._setDimension('width', width);
     },
 
     /**
@@ -481,8 +482,8 @@
      * @return {fabric.Canvas} instance
      * @chainable true
      */
-    setHeight: function (value) {
-      return this._setDimension('height', value);
+    setHeight: function (height) {
+      return this._setDimension('height', height);
     },
 
     /**
@@ -1399,7 +1400,7 @@
      * Provides a way to check support of some of the canvas methods
      * (either those of HTMLCanvasElement itself, or rendering context)
      *
-     * @param methodName {String} Method to check support for;
+     * @param {String} methodName Method to check support for;
      *                            Could be one of "getImageData", "toDataURL", "toDataURLWithQuality" or "setLineDash"
      * @return {Boolean | null} `true` if method is supported (or at least exists),
      *                          `null` if canvas element or context can not be initialized
diff --git a/test/unit/canvas_static.js b/test/unit/canvas_static.js
index e8aa7aaeb7c..24bf80e98fb 100644
--- a/test/unit/canvas_static.js
+++ b/test/unit/canvas_static.js
@@ -132,7 +132,8 @@
   var el = fabric.document.createElement('canvas');
   el.width = 600; el.height = 600;
 
-  var canvas = this.canvas = fabric.isLikelyNode ? fabric.createCanvasForNode() : new fabric.StaticCanvas(el);
+  var canvas = this.canvas = fabric.isLikelyNode ? fabric.createCanvasForNode() : new fabric.StaticCanvas(el),
+      canvas2 = this.canvas2 = fabric.isLikelyNode ? fabric.createCanvasForNode() : new fabric.StaticCanvas(el);
   fabric.Canvas = Canvas;
 
   var lowerCanvasEl = canvas.lowerCanvasEl;
@@ -153,7 +154,18 @@
 
   test('initialProperties', function() {
     ok('backgroundColor' in canvas);
+    ok('overlayColor' in canvas);
+    ok('backgroundImage' in canvas);
+    ok('overlayImage' in canvas);
+    ok('clipTo' in canvas);
+
     equal(canvas.includeDefaultValues, true);
+    equal(canvas.stateful, true);
+    equal(canvas.renderOnAddRemove, true);
+    equal(canvas.controlsAboveOverlay, false);
+    equal(canvas.imageSmoothingEnabled, true);
+
+    notStrictEqual(canvas.viewportTransform, canvas2.viewportTransform);
   });
 
   test('getObjects', function() {

From 43b029e8a496aef7f190e57af92cf8012b65bf6c Mon Sep 17 00:00:00 2001
From: Stefan Kienzle <stefankienzle.de@gmail.com>
Date: Thu, 17 Jul 2014 14:35:28 +0200
Subject: [PATCH 09/21] Just do `slice()` for cloning

---
 src/static_canvas.class.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/static_canvas.class.js b/src/static_canvas.class.js
index 841fb68c0ab..2a554ae8d80 100644
--- a/src/static_canvas.class.js
+++ b/src/static_canvas.class.js
@@ -429,7 +429,7 @@
       this.lowerCanvasEl.style.width = this.width + 'px';
       this.lowerCanvasEl.style.height = this.height + 'px';
 
-      this.viewportTransform = this.viewportTransform.map(function(item) { return item; });
+      this.viewportTransform = this.viewportTransform.slice();
     },
 
     /**

From b34387d10e6d267059805ac0f6ee895a091f3903 Mon Sep 17 00:00:00 2001
From: Stefan Kienzle <stefankienzle.de@gmail.com>
Date: Thu, 17 Jul 2014 16:18:57 +0200
Subject: [PATCH 10/21] JSDoc + JSCS tweaks - Part 1

---
 src/canvas.class.js            | 15 +++++------
 src/parser.js                  | 46 ++++++++++++++++------------------
 src/point.class.js             |  2 +-
 src/shapes/circle.class.js     |  3 ++-
 src/shapes/ellipse.class.js    |  7 +++---
 src/shapes/group.class.js      |  2 +-
 src/shapes/itext.class.js      | 13 ++++++++--
 src/shapes/object.class.js     |  4 +--
 src/shapes/path.class.js       |  3 ++-
 src/shapes/path_group.class.js |  2 +-
 src/shapes/polygon.class.js    |  2 +-
 src/shapes/polyline.class.js   |  2 +-
 src/shapes/rect.class.js       |  6 ++---
 src/shapes/text.class.js       |  4 +--
 src/shapes/triangle.class.js   |  6 ++---
 15 files changed, 61 insertions(+), 56 deletions(-)

diff --git a/src/canvas.class.js b/src/canvas.class.js
index 359658476ee..9a83c2fa261 100644
--- a/src/canvas.class.js
+++ b/src/canvas.class.js
@@ -444,8 +444,8 @@
     /**
      * Translates object by "setting" its left/top
      * @private
-     * @param x {Number} pointer's x coordinate
-     * @param y {Number} pointer's y coordinate
+     * @param {Number} x pointer's x coordinate
+     * @param {Number} y pointer's y coordinate
      */
     _translateObject: function (x, y) {
       var target = this._currentTransform.target;
@@ -461,9 +461,9 @@
     /**
      * Scales object by invoking its scaleX/scaleY methods
      * @private
-     * @param x {Number} pointer's x coordinate
-     * @param y {Number} pointer's y coordinate
-     * @param by {String} Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
+     * @param {Number} x pointer's x coordinate
+     * @param {Number} y pointer's y coordinate
+     * @param {String} by Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
      *                    When not provided, an object is scaled by both dimensions equally
      */
     _scaleObject: function (x, y, by) {
@@ -843,7 +843,6 @@
 
     /**
      * @private
-     * @param {HTMLElement|String} canvasEl Canvas element
      * @throws {CANVAS_INIT_ERROR} If canvas can not be initialized
      */
     _createUpperCanvas: function () {
@@ -871,8 +870,6 @@
 
     /**
      * @private
-     * @param {Number} width
-     * @param {Number} height
      */
     _initWrapperElement: function () {
       this.wrapperEl = fabric.util.wrapElement(this.lowerCanvasEl, 'div', {
@@ -888,7 +885,7 @@
 
     /**
      * @private
-     * @param {Element} element
+     * @param {HTMLElement} element canvas element to apply styles on
      */
     _applyCanvasStyle: function (element) {
       var width = this.getWidth() || element.width,
diff --git a/src/parser.js b/src/parser.js
index 2f893185ab5..3c51a778308 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -368,28 +368,32 @@
    * @private
    */
   function parseUseDirectives(doc) {
-    var nodelist = doc.querySelectorAll("use");
-    for (var i = 0; i < nodelist.length; i++) {
-      var el = nodelist[i];
-      var xlink = el.getAttribute('xlink:href').substr(1);
-      var x = el.getAttribute('x') || 0;
-      var y = el.getAttribute('y') || 0;
-      var el2 = doc.getElementById(xlink).cloneNode(true);
-      var currentTrans = (el.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')';
+    var nodelist = doc.querySelectorAll('use');
+    for (var i = 0, len = nodelist.length; i < len; i++) {
+      var el = nodelist[i],
+          xlink = el.getAttribute('xlink:href').substr(1),
+          x = el.getAttribute('x') || 0,
+          y = el.getAttribute('y') || 0,
+          el2 = doc.getElementById(xlink).cloneNode(true),
+          currentTrans = (el.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')',
+          parentNode;
+
       for (var j = 0, attrs = el.attributes, l = attrs.length; j < l; j++) {
         var attr = attrs.item(j);
-        if (attr.nodeName !== 'x' && attr.nodeName !== 'y' && attr.nodeName !== 'xlink:href') {
-          if (attr.nodeName === 'transform') {
-            currentTrans = currentTrans + ' ' + attr.nodeValue;
-          } else {
-            el2.setAttribute(attr.nodeName, attr.nodeValue);
-          }
+        if (attr.nodeName === 'x' || attr.nodeName === 'y' || attr.nodeName === 'xlink:href') continue;
+
+        if (attr.nodeName === 'transform') {
+          currentTrans = currentTrans + ' ' + attr.nodeValue;
+        }
+        else {
+          el2.setAttribute(attr.nodeName, attr.nodeValue);
         }
       }
+
       el2.setAttribute('transform', currentTrans);
       el2.removeAttribute('id');
-      var pNode=el.parentNode;
-      pNode.replaceChild(el2, el);
+      parentNode = el.parentNode;
+      parentNode.replaceChild(el2, el);
     }
   }
 
@@ -520,18 +524,10 @@
       callback(false);
     },
 
-    /**
-    * @param {String} url
-    * @param {Function} callback
-    */
     get: function () {
       /* NOOP */
     },
 
-    /**
-     * @param {String} url
-     * @param {Object} object
-     */
     set: function () {
       /* NOOP */
     }
@@ -705,7 +701,7 @@
      * Parses "points" attribute, returning an array of values
      * @static
      * @memberOf fabric
-     * @param points {String} points attribute string
+     * @param {String} points points attribute string
      * @return {Array} array of points
      */
     parsePointsAttribute: function(points) {
diff --git a/src/point.class.js b/src/point.class.js
index 727be608971..149709152c5 100644
--- a/src/point.class.js
+++ b/src/point.class.js
@@ -63,7 +63,7 @@
     /**
      * Adds value to this point
      * @param {Number} scalar
-     * @param {fabric.Point} thisArg
+     * @return {fabric.Point} thisArg
      */
     scalarAddEquals: function (scalar) {
       this.x += scalar;
diff --git a/src/shapes/circle.class.js b/src/shapes/circle.class.js
index fccffd5882c..36ca968032b 100644
--- a/src/shapes/circle.class.js
+++ b/src/shapes/circle.class.js
@@ -96,7 +96,8 @@
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _render: function(ctx, noTransform) {
       ctx.beginPath();
diff --git a/src/shapes/ellipse.class.js b/src/shapes/ellipse.class.js
index a1539ca0cf2..b556d97329a 100644
--- a/src/shapes/ellipse.class.js
+++ b/src/shapes/ellipse.class.js
@@ -94,8 +94,8 @@
 
     /**
      * Renders this instance on a given context
-     * @param ctx {CanvasRenderingContext2D} context to render on
-     * @param noTransform {Boolean} context is not transformed when set to true
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     render: function(ctx, noTransform) {
       // do not use `get` for perf. reasons
@@ -105,7 +105,8 @@
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _render: function(ctx, noTransform) {
       ctx.beginPath();
diff --git a/src/shapes/group.class.js b/src/shapes/group.class.js
index 04b7c299baa..756af1d889d 100644
--- a/src/shapes/group.class.js
+++ b/src/shapes/group.class.js
@@ -523,7 +523,7 @@
    * @static
    * @memberOf fabric.Group
    * @param {Object} object Object to create a group from
-   * @param {Object} [options] Options object
+   * @param {Function} [callback] Callback to invoke when an group instance is created
    * @return {fabric.Group} An instance of fabric.Group
    */
   fabric.Group.fromObject = function(object, callback) {
diff --git a/src/shapes/itext.class.js b/src/shapes/itext.class.js
index 83713969e16..87af2adc1e0 100644
--- a/src/shapes/itext.class.js
+++ b/src/shapes/itext.class.js
@@ -635,7 +635,9 @@
      * @private
      * @param {String} method
      * @param {CanvasRenderingContext2D} ctx Context to render on
-     * @param {String} line
+     * @param {String} line Content of the line
+     * @param {Number} left Left coordinate
+     * @param {Number} top Top coordinate
      */
     _renderCharsFast: function(method, ctx, line, left, top) {
       this.skipTextAlign = false;
@@ -650,7 +652,14 @@
 
     /**
      * @private
+     * @param {String} method
      * @param {CanvasRenderingContext2D} ctx Context to render on
+     * @param {Number} lineIndex
+     * @param {Number} i
+     * @param {String} _char
+     * @param {Number} left Left coordinate
+     * @param {Number} top Top coordinate
+     * @param {Number} lineHeight Height of the line
      */
     _renderChar: function(method, ctx, lineIndex, i, _char, left, top, lineHeight) {
       var decl, charWidth, charHeight;
@@ -1069,6 +1078,7 @@
     /**
      * @private
      * @param {CanvasRenderingContext2D} ctx Context to render on
+     * @param {Array} textLines Array of all text lines
      */
     _getTextHeight: function(ctx, textLines) {
       var height = 0;
@@ -1080,7 +1090,6 @@
 
     /**
      * @private
-     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _getTopOffset: function() {
       var topOffset = fabric.Text.prototype._getTopOffset.call(this);
diff --git a/src/shapes/object.class.js b/src/shapes/object.class.js
index 5c839cc2d9b..dee5a77e8c9 100644
--- a/src/shapes/object.class.js
+++ b/src/shapes/object.class.js
@@ -1125,7 +1125,7 @@
 
     /**
      * Creates an instance of fabric.Image out of an object
-     * @param callback {Function} callback, invoked with an instance as a first argument
+     * @param {Function} callback callback, invoked with an instance as a first argument
      * @return {fabric.Object} thisArg
      */
     cloneAsImage: function(callback) {
@@ -1195,7 +1195,7 @@
 
     /**
      * Returns true if specified type is identical to the type of an instance
-     * @param type {String} type Type to check against
+     * @param {String} type Type to check against
      * @return {Boolean}
      */
     isType: function(type) {
diff --git a/src/shapes/path.class.js b/src/shapes/path.class.js
index 47895ce0a8f..abbe42f341c 100644
--- a/src/shapes/path.class.js
+++ b/src/shapes/path.class.js
@@ -142,7 +142,8 @@
 
     /**
      * @private
-     * @param {Boolean} positionSet When false, path offset is returned otherwise 0
+     * @param {Number} origLeft Original left position
+     * @param {Number} origTop  Original top position
      */
     _calculatePathOffset: function (origLeft, origTop) {
       return {
diff --git a/src/shapes/path_group.class.js b/src/shapes/path_group.class.js
index da89a2c4e78..e81c51a7901 100644
--- a/src/shapes/path_group.class.js
+++ b/src/shapes/path_group.class.js
@@ -77,7 +77,7 @@
       ctx.save();
 
       var m = this.transformMatrix;
-      
+
       if (m) {
         ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);
       }
diff --git a/src/shapes/polygon.class.js b/src/shapes/polygon.class.js
index 16283dc4fcb..c63c4fd89b5 100644
--- a/src/shapes/polygon.class.js
+++ b/src/shapes/polygon.class.js
@@ -197,7 +197,7 @@
    * Returns fabric.Polygon instance from an object representation
    * @static
    * @memberOf fabric.Polygon
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Polygon} Instance of fabric.Polygon
    */
   fabric.Polygon.fromObject = function(object) {
diff --git a/src/shapes/polyline.class.js b/src/shapes/polyline.class.js
index c5a750d04f6..27ac3dd0fd3 100644
--- a/src/shapes/polyline.class.js
+++ b/src/shapes/polyline.class.js
@@ -179,7 +179,7 @@
    * Returns fabric.Polyline instance from an object representation
    * @static
    * @memberOf fabric.Polyline
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Polyline} Instance of fabric.Polyline
    */
   fabric.Polyline.fromObject = function(object) {
diff --git a/src/shapes/rect.class.js b/src/shapes/rect.class.js
index 184b90e0b9d..565a7a5134b 100644
--- a/src/shapes/rect.class.js
+++ b/src/shapes/rect.class.js
@@ -98,7 +98,7 @@
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _render: function(ctx) {
 
@@ -154,7 +154,7 @@
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
       var x = -this.width / 2,
@@ -280,7 +280,7 @@
    * Returns {@link fabric.Rect} instance from an object representation
    * @static
    * @memberOf fabric.Rect
-   * @param object {Object} object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {Object} instance of fabric.Rect
    */
   fabric.Rect.fromObject = function(object) {
diff --git a/src/shapes/text.class.js b/src/shapes/text.class.js
index e164b1a74e3..1a4726e502f 100644
--- a/src/shapes/text.class.js
+++ b/src/shapes/text.class.js
@@ -484,7 +484,7 @@
      * @private
      * @param {String} method Method name ("fillText" or "strokeText")
      * @param {CanvasRenderingContext2D} ctx Context to render on
-     * @param {String} line Chars to render
+     * @param {String} chars Chars to render
      * @param {Number} left Left position of text
      * @param {Number} top Top position of text
      */
@@ -1107,7 +1107,7 @@
    * Returns fabric.Text instance from an object representation
    * @static
    * @memberOf fabric.Text
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Text} Instance of fabric.Text
    */
   fabric.Text.fromObject = function(object) {
diff --git a/src/shapes/triangle.class.js b/src/shapes/triangle.class.js
index 12eaebb86ab..fcced7a46b4 100644
--- a/src/shapes/triangle.class.js
+++ b/src/shapes/triangle.class.js
@@ -41,7 +41,7 @@
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} Context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _render: function(ctx) {
       var widthBy2 = this.width / 2,
@@ -59,7 +59,7 @@
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} Context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
       var widthBy2 = this.width / 2,
@@ -114,7 +114,7 @@
    * Returns fabric.Triangle instance from an object representation
    * @static
    * @memberOf fabric.Triangle
-   * @param object {Object} object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {Object} instance of Canvas.Triangle
    */
   fabric.Triangle.fromObject = function(object) {

From dfbd1887bf5e380265a27c4be4ada8b2cb33d8f7 Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 16:24:46 +0200
Subject: [PATCH 11/21] Update misc.js

some more polishing
---
 src/util/misc.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/util/misc.js b/src/util/misc.js
index 0a01d60c833..ec46d5d2e4d 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -4,7 +4,6 @@
       atan2 = Math.atan2,
       PiBy180 = Math.PI / 180;
 
-  fabric.DPI = 96;
   /**
    * @namespace fabric.util
    */
@@ -133,9 +132,15 @@
       return parseFloat(Number(number).toFixed(fractionDigits));
     },
 
+    /**
+     * Converts from attribute value to pixel value if applicable.
+     * Returns converted pixels or original value not converted.
+     * @param {Number | String} number to operate on
+     * @return {Number | String}
+     */
     parseUnit: function(value) {
       var unit = /\D{0,2}$/.exec(value),
-          number = parseFloat(value.slice(0, unit.index));
+          number = parseFloat(value);
       switch (unit[0]) {
         case 'mm':
           return number * fabric.DPI / 25.4;

From 5ca64ad636aff2d3fcd2894cf8a689c7b95c840a Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 16:25:59 +0200
Subject: [PATCH 12/21] Update parser.js

---
 src/parser.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/parser.js b/src/parser.js
index 1db6ce25cfb..c93c93f661b 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -84,7 +84,7 @@
     else if (attr === 'originX' /* text-anchor */) {
       value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';
     } else {
-      // TODO: need to normalize em, %, pt, etc. to px (!)
+      // TODO: need to normalize em, %, etc. to px (!)
       var parsed = isArray ? value.map(parseUnit) : parseUnit(value);
     }
 

From df7671daa331d0f9b0ec8098a7b1a6414894e43d Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 16:28:42 +0200
Subject: [PATCH 13/21] Update HEADER.js

Moved fabric.DPI to proper file.
---
 HEADER.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/HEADER.js b/HEADER.js
index cc4dc696df7..e92cc0243f7 100644
--- a/HEADER.js
+++ b/HEADER.js
@@ -44,3 +44,8 @@ fabric.SHARED_ATTRIBUTES = [
   "stroke-linejoin", "stroke-miterlimit",
   "stroke-opacity", "stroke-width"
 ];
+
+/**
+ * Pixel per Inch as a default value set to 96. Can be changed for more realistic conversion.
+ */
+fabric.DPI = 96;

From 795d8a7aa540389325908f414ccc5d1f90230a46 Mon Sep 17 00:00:00 2001
From: asturur <andreabogazzi79@gmail.com>
Date: Thu, 17 Jul 2014 16:38:09 +0200
Subject: [PATCH 14/21] Update misc.js

some more polishing, for me and for toFixed.
---
 src/util/misc.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/util/misc.js b/src/util/misc.js
index ec46d5d2e4d..5c25d5385cb 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -124,7 +124,7 @@
      * A wrapper around Number#toFixed, which contrary to native method returns number, not string.
      * @static
      * @memberOf fabric.util
-     * @param {Number | String} number number to operate on
+     * @param {Number|String} number number to operate on
      * @param {Number} fractionDigits number of fraction digits to "leave"
      * @return {Number}
      */
@@ -135,8 +135,8 @@
     /**
      * Converts from attribute value to pixel value if applicable.
      * Returns converted pixels or original value not converted.
-     * @param {Number | String} number to operate on
-     * @return {Number | String}
+     * @param {Number|String} value number to operate on
+     * @return {Number|String}
      */
     parseUnit: function(value) {
       var unit = /\D{0,2}$/.exec(value),

From 6b5f049bb0a459dd29e2927ed99094b3e7baec66 Mon Sep 17 00:00:00 2001
From: Stefan Kienzle <stefankienzle.de@gmail.com>
Date: Fri, 18 Jul 2014 11:16:23 +0200
Subject: [PATCH 15/21] JSDoc + JSCS tweaks - Part 2

---
 src/brushes/pencil_brush.class.js        | 47 +++++++++++-------------
 src/brushes/spray_brush.class.js         |  6 ++-
 src/mixins/canvas_events.mixin.js        | 20 +++++-----
 src/mixins/canvas_gestures.mixin.js      | 22 +++++------
 src/mixins/itext_behavior.mixin.js       |  7 +++-
 src/mixins/itext_click_behavior.mixin.js |  5 +--
 src/mixins/itext_key_behavior.mixin.js   | 21 +++++++----
 src/mixins/object_geometry.mixin.js      | 39 ++++++++++----------
 src/mixins/object_interactivity.mixin.js | 27 ++++++++------
 src/mixins/object_origin.mixin.js        |  4 +-
 src/shapes/object.class.js               | 10 +++--
 src/util/lang_array.js                   |  2 +-
 src/util/misc.js                         | 15 ++++----
 13 files changed, 119 insertions(+), 106 deletions(-)

diff --git a/src/brushes/pencil_brush.class.js b/src/brushes/pencil_brush.class.js
index 09fc93f3b6f..bf0cf9e4e5e 100644
--- a/src/brushes/pencil_brush.class.js
+++ b/src/brushes/pencil_brush.class.js
@@ -52,7 +52,8 @@
     },
 
     /**
-     * @param {Object} pointer
+     * @private
+     * @param {Object} pointer Actual mouse position related to the canvas.
      */
     _prepareForDrawing: function(pointer) {
 
@@ -66,18 +67,15 @@
 
     /**
      * @private
-     * @param {fabric.Point} point
+     * @param {fabric.Point} point Point to be added to points array
      */
     _addPoint: function(point) {
       this._points.push(point);
     },
 
     /**
-     * Clear points array and set contextTop canvas
-     * style.
-     *
+     * Clear points array and set contextTop canvas style.
      * @private
-     *
      */
     _reset: function() {
       this._points.length = 0;
@@ -88,9 +86,7 @@
 
     /**
      * @private
-     *
-     * @param point {pointer} (fabric.util.pointer) actual mouse position
-     *   related to the canvas.
+     * @param {Object} pointer Actual mouse position related to the canvas.
      */
     _captureDrawingPath: function(pointer) {
       var pointerPoint = new fabric.Point(pointer.x, pointer.y);
@@ -99,19 +95,18 @@
 
     /**
      * Draw a smooth path on the topCanvas using quadraticCurveTo
-     *
      * @private
      */
     _render: function() {
-      var ctx  = this.canvas.contextTop;
-      var v = this.canvas.viewportTransform;
+      var ctx  = this.canvas.contextTop,
+          v = this.canvas.viewportTransform,
+          p1 = this._points[0],
+          p2 = this._points[1];
+
       ctx.save();
       ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
       ctx.beginPath();
 
-      var p1 = this._points[0],
-          p2 = this._points[1];
-
       //if we only have 2 points in the path and they are the same
       //it means that the user only clicked the canvas without moving the mouse
       //then we should be drawing a dot. A path isn't drawn between two identical dots
@@ -141,19 +136,18 @@
 
     /**
      * Return an SVG path based on our captured points and their bounding box
-     *
      * @private
      */
     _getSVGPathData: function() {
       this.box = this.getPathBoundingBox(this._points);
       return this.convertPointsToSVGPath(
-        this._points, this.box.minx, this.box.maxx, this.box.miny, this.box.maxy);
+        this._points, this.box.minX, this.box.minY);
     },
 
      /**
       * Returns bounding box of a path based on given points
-      * @param {Array} points
-      * @return {Object} object with minx, miny, maxx, maxy
+      * @param {Array} points Array of points
+      * @return {Object} Object with minX, minY, maxX, maxY
       */
     getPathBoundingBox: function(points) {
       var xBounds = [],
@@ -179,19 +173,21 @@
       yBounds.push(p1.y);
 
       return {
-        minx: utilMin(xBounds),
-        miny: utilMin(yBounds),
-        maxx: utilMax(xBounds),
-        maxy: utilMax(yBounds)
+        minX: utilMin(xBounds),
+        minY: utilMin(yBounds),
+        maxX: utilMax(xBounds),
+        maxY: utilMax(yBounds)
       };
     },
 
     /**
      * Converts points to SVG path
      * @param {Array} points Array of points
+     * @param {Number} minX
+     * @param {Number} minY
      * @return {String} SVG path
      */
-    convertPointsToSVGPath: function(points, minX, maxX, minY) {
+    convertPointsToSVGPath: function(points, minX, minY) {
       var path = [],
           p1 = new fabric.Point(points[0].x - minX, points[0].y - minY),
           p2 = new fabric.Point(points[1].x - minX, points[1].y - minY);
@@ -215,7 +211,7 @@
     /**
      * Creates fabric.Path object to add on canvas
      * @param {String} pathData Path data
-     * @return {fabric.Path} path to add on canvas
+     * @return {fabric.Path} Path to add on canvas
      */
     createPath: function(pathData) {
       var path = new fabric.Path(pathData);
@@ -237,7 +233,6 @@
      * On mouseup after drawing the path on contextTop canvas
      * we use the points captured to create an new fabric path object
      * and add it to the fabric canvas.
-     *
      */
     _finalizeAndAddPath: function() {
       var ctx = this.canvas.contextTop;
diff --git a/src/brushes/spray_brush.class.js b/src/brushes/spray_brush.class.js
index afd9ce26cf1..fd6929f5884 100644
--- a/src/brushes/spray_brush.class.js
+++ b/src/brushes/spray_brush.class.js
@@ -123,6 +123,10 @@ fabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric
     this.canvas.renderAll();
   },
 
+    /**
+     * @private
+     * @param {Array} rects
+     */
   _getOptimizedRects: function(rects) {
 
     // avoid creating duplicate rects at the same coordinates
@@ -185,7 +189,7 @@ fabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric
       else {
         width = this.dotWidth;
       }
-      
+
       var point = new fabric.Point(x, y);
       point.width = width;
 
diff --git a/src/mixins/canvas_events.mixin.js b/src/mixins/canvas_events.mixin.js
index d2a80719143..09f26a2438e 100644
--- a/src/mixins/canvas_events.mixin.js
+++ b/src/mixins/canvas_events.mixin.js
@@ -98,8 +98,8 @@
      * @param {Event} [e] Event object fired on Event.js gesture
      * @param {Event} [self] Inner Event object
      */
-    _onGesture: function(e, s) {
-      this.__onTransformGesture && this.__onTransformGesture(e, s);
+    _onGesture: function(e, self) {
+      this.__onTransformGesture && this.__onTransformGesture(e, self);
     },
 
     /**
@@ -107,8 +107,8 @@
      * @param {Event} [e] Event object fired on Event.js drag
      * @param {Event} [self] Inner Event object
      */
-    _onDrag: function(e, s) {
-      this.__onDrag && this.__onDrag(e, s);
+    _onDrag: function(e, self) {
+      this.__onDrag && this.__onDrag(e, self);
     },
 
     /**
@@ -116,8 +116,8 @@
      * @param {Event} [e] Event object fired on Event.js wheel event
      * @param {Event} [self] Inner Event object
      */
-    _onMouseWheel: function(e, s) {
-      this.__onMouseWheel && this.__onMouseWheel(e, s);
+    _onMouseWheel: function(e, self) {
+      this.__onMouseWheel && this.__onMouseWheel(e, self);
     },
 
     /**
@@ -125,8 +125,8 @@
      * @param {Event} [e] Event object fired on Event.js orientation change
      * @param {Event} [self] Inner Event object
      */
-    _onOrientationChange: function(e,s) {
-      this.__onOrientationChange && this.__onOrientationChange(e,s);
+    _onOrientationChange: function(e,self) {
+      this.__onOrientationChange && this.__onOrientationChange(e,self);
     },
 
     /**
@@ -134,8 +134,8 @@
      * @param {Event} [e] Event object fired on Event.js shake
      * @param {Event} [self] Inner Event object
      */
-    _onShake: function(e,s) {
-      this.__onShake && this.__onShake(e,s);
+    _onShake: function(e, self) {
+      this.__onShake && this.__onShake(e,self);
     },
 
     /**
diff --git a/src/mixins/canvas_gestures.mixin.js b/src/mixins/canvas_gestures.mixin.js
index fdb18853197..b8dcfcf362c 100644
--- a/src/mixins/canvas_gestures.mixin.js
+++ b/src/mixins/canvas_gestures.mixin.js
@@ -9,8 +9,8 @@
      * Method that defines actions when an Event.js gesture is detected on an object. Currently only supports
      * 2 finger gestures.
      *
-     * @param e Event object by Event.js
-     * @param self Event proxy object by Event.js
+     * @param {Event} e Event object by Event.js
+     * @param {Event} self Event proxy object by Event.js
      */
     __onTransformGesture: function(e, self) {
 
@@ -31,8 +31,8 @@
     /**
      * Method that defines actions when an Event.js drag is detected.
      *
-     * @param e Event object by Event.js
-     * @param self Event proxy object by Event.js
+     * @param {Event} e Event object by Event.js
+     * @param {Event} self Event proxy object by Event.js
      */
     __onDrag: function(e, self) {
       this.fire('touch:drag', { e: e, self: self });
@@ -41,8 +41,8 @@
     /**
      * Method that defines actions when an Event.js orientation event is detected.
      *
-     * @param e Event object by Event.js
-     * @param self Event proxy object by Event.js
+     * @param {Event} e Event object by Event.js
+     * @param {Event} self Event proxy object by Event.js
      */
     __onOrientationChange: function(e, self) {
       this.fire('touch:orientation', { e: e, self: self });
@@ -51,8 +51,8 @@
     /**
      * Method that defines actions when an Event.js shake event is detected.
      *
-     * @param e Event object by Event.js
-     * @param self Event proxy object by Event.js
+     * @param {Event} e Event object by Event.js
+     * @param {Event} self Event proxy object by Event.js
      */
     __onShake: function(e, self) {
       this.fire('touch:shake', { e: e, self: self });
@@ -60,8 +60,8 @@
 
     /**
      * Scales an object by a factor
-     * @param s {Number} The scale factor to apply to the current scale level
-     * @param by {String} Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
+     * @param {Number} s The scale factor to apply to the current scale level
+     * @param {String} by Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
      *                    When not provided, an object is scaled by both dimensions equally
      */
     _scaleObjectBy: function(s, by) {
@@ -92,7 +92,7 @@
 
     /**
      * Rotates object by an angle
-     * @param curAngle {Number} the angle of rotation in degrees
+     * @param {Number} curAngle The angle of rotation in degrees
      */
     _rotateObjectByAngle: function(curAngle) {
       var t = this._currentTransform;
diff --git a/src/mixins/itext_behavior.mixin.js b/src/mixins/itext_behavior.mixin.js
index d82e029a9ae..044473db515 100644
--- a/src/mixins/itext_behavior.mixin.js
+++ b/src/mixins/itext_behavior.mixin.js
@@ -216,7 +216,8 @@
 
     /**
      * Find new selection index representing start of current line according to current selection index
-     * @param {Number} current selection index
+     * @param {Number} startFrom Current selection index
+     * @return {Number} New selection index
      */
     findLineBoundaryLeft: function(startFrom) {
       var offset = 0, index = startFrom - 1;
@@ -231,7 +232,8 @@
 
     /**
      * Find new selection index representing end of current line according to current selection index
-     * @param {Number} current selection index
+     * @param {Number} startFrom Current selection index
+     * @return {Number} New selection index
      */
     findLineBoundaryRight: function(startFrom) {
       var offset = 0, index = startFrom;
@@ -264,6 +266,7 @@
      * Finds index corresponding to beginning or end of a word
      * @param {Number} selectionStart Index of a character
      * @param {Number} direction: 1 or -1
+     * @return {Number} Index of the beginning or end of a word
      */
     searchWordBoundary: function(selectionStart, direction) {
       var index = this._reSpace.test(this.text.charAt(selectionStart)) ? selectionStart - 1 : selectionStart,
diff --git a/src/mixins/itext_click_behavior.mixin.js b/src/mixins/itext_click_behavior.mixin.js
index 9c2c6c248b9..3449b847415 100644
--- a/src/mixins/itext_click_behavior.mixin.js
+++ b/src/mixins/itext_click_behavior.mixin.js
@@ -155,7 +155,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Changes cursor location in a text depending on passed pointer (x/y) object
-   * @param {Object} pointer Pointer object with x and y numeric properties
+   * @param {Event} e Event object
    */
   setCursorByClick: function(e) {
     var newSelectionStart = this.getSelectionStartFromPointer(e);
@@ -178,7 +178,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
   /**
    * @private
    * @param {Event} e Event object
-   * @param {Object} Object with x/y corresponding to local offset (according to object rotation)
+   * @return {Object} Coordinates of a pointer (x, y)
    */
   _getLocalRotatedPointer: function(e) {
     var pointer = this.canvas.getPointer(e),
@@ -198,7 +198,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @return {Number} Index of a character
    */
   getSelectionStartFromPointer: function(e) {
-
     var mouseOffset = this._getLocalRotatedPointer(e),
         textLines = this.text.split(this._reNewline),
         prevWidth = 0,
diff --git a/src/mixins/itext_key_behavior.mixin.js b/src/mixins/itext_key_behavior.mixin.js
index 72bbaa7ef0a..45d2dff5d36 100644
--- a/src/mixins/itext_key_behavior.mixin.js
+++ b/src/mixins/itext_key_behavior.mixin.js
@@ -110,7 +110,8 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
     // Check for backward compatibility with old browsers
     if (clipboardData) {
       copiedText = clipboardData.getData('text');
-    } else {
+    }
+    else {
       copiedText = this.copiedText;
     }
 
@@ -135,6 +136,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
   /**
    * @private
    * @param {Event} e Event object
+   * @return {Object} Clipboard data object
    */
   _getClipboardData: function(e) {
     return e && (e.clipboardData || fabric.window.clipboardData);
@@ -156,10 +158,11 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Gets start offset of a selection
+   * @param {Event} e Event object
+   * @param {Boolean} isRight
    * @return {Number}
    */
   getDownCursorOffset: function(e, isRight) {
-
     var selectionProp = isRight ? this.selectionEnd : this.selectionStart,
         textLines = this.text.split(this._reNewline),
         _char,
@@ -202,7 +205,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @private
    */
   _getIndexOnNextLine: function(cursorLocation, textOnNextLine, widthOfCharsOnSameLineBeforeCursor, textLines) {
-
     var lineIndex = cursorLocation.lineIndex + 1,
         widthOfNextLine = this._getWidthOfLine(this.ctx, lineIndex, textLines),
         lineLeftOffset = this._getLineLeftOffset(widthOfNextLine),
@@ -245,7 +247,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Event} e Event object
    */
   moveCursorDown: function(e) {
-
     this.abortCursorAnimation();
     this._currentCursorOpacity = 1;
 
@@ -266,7 +267,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Number} offset
    */
   moveCursorDownWithoutShift: function(offset) {
-
     this._selectionDirection = 'right';
     this.selectionStart += offset;
 
@@ -281,7 +281,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Number} offset
    */
   moveCursorDownWithShift: function(offset) {
-
     if (this._selectionDirection === 'left' && (this.selectionStart !== this.selectionEnd)) {
       this.selectionStart += offset;
       this._selectionDirection = 'left';
@@ -297,8 +296,12 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
     }
   },
 
+  /**
+   * @param {Event} e Event object
+   * @param {Boolean} isRight
+   * @return {Number}
+   */
   getUpCursorOffset: function(e, isRight) {
-
     var selectionProp = isRight ? this.selectionEnd : this.selectionStart,
         cursorLocation = this.get2DCursorLocation(selectionProp);
 
@@ -564,7 +567,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Moves cursor right without keeping selection
-   * @param {Event} e
+   * @param {Event} e Event object
    */
   moveCursorRightWithoutShift: function(e) {
     this._selectionDirection = 'right';
@@ -584,6 +587,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Inserts a character where cursor is (replacing selection if one exists)
+   * @param {Event} e Event object
    */
   removeChars: function(e) {
     if (this.selectionStart === this.selectionEnd) {
@@ -610,6 +614,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * @private
+   * @param {Event} e Event object
    */
   _removeCharsNearCursor: function(e) {
     if (this.selectionStart !== 0) {
diff --git a/src/mixins/object_geometry.mixin.js b/src/mixins/object_geometry.mixin.js
index 2b45b09dce1..f47704f3b48 100644
--- a/src/mixins/object_geometry.mixin.js
+++ b/src/mixins/object_geometry.mixin.js
@@ -253,7 +253,7 @@
 
     /**
      * Scales an object (equally by x and y)
-     * @param value {Number} scale factor
+     * @param {Number} value Scale factor
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -274,7 +274,7 @@
 
     /**
      * Scales an object to a given width, with respect to bounding box (scaling by x/y equally)
-     * @param value {Number} new width value
+     * @param {Number} value New width value
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -286,7 +286,7 @@
 
     /**
      * Scales an object to a given height, with respect to bounding box (scaling by x/y equally)
-     * @param value {Number} new height value
+     * @param {Number} value New height value
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -302,24 +302,24 @@
      * @chainable
      */
     setCoords: function() {
-
       var strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
           theta = degreesToRadians(this.angle),
-          vpt = this.getViewportTransform();
-
-      var f = function (p) {
-        return fabric.util.transformPoint(p, vpt);
-      };
-      var w = this.width,
+          vpt = this.getViewportTransform(),
+          f = function (p) {
+            return fabric.util.transformPoint(p, vpt);
+          },
+          w = this.width,
           h = this.height,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
+
       if (vLine) {
         w = strokeWidth;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth;
       }
       if (strokeW) {
@@ -361,11 +361,12 @@
           mt  = f(_mt),
           mr  = f(new fabric.Point(_tr.x - (wh.y/2 * sinTh), _tr.y + (wh.y/2 * cosTh))),
           mb  = f(new fabric.Point(_bl.x + (wh.x/2 * cosTh), _bl.y + (wh.x/2 * sinTh))),
-          mtr = f(new fabric.Point(_mt.x, _mt.y));
+          mtr = f(new fabric.Point(_mt.x, _mt.y)),
 
-      // padding
-      var padX = Math.cos(_angle + theta) * this.padding * Math.sqrt(2),
+          // padding
+          padX = Math.cos(_angle + theta) * this.padding * Math.sqrt(2),
           padY = Math.sin(_angle + theta) * this.padding * Math.sqrt(2);
+
       tl = tl.add(new fabric.Point(-padX, -padY));
       tr = tr.add(new fabric.Point(padY, -padX));
       br = br.add(new fabric.Point(padX, padY));
diff --git a/src/mixins/object_interactivity.mixin.js b/src/mixins/object_interactivity.mixin.js
index bdc5ed756c3..f212379d496 100644
--- a/src/mixins/object_interactivity.mixin.js
+++ b/src/mixins/object_interactivity.mixin.js
@@ -281,14 +281,15 @@
       var w = this.getWidth(),
           h = this.getHeight(),
           strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
       if (vLine) {
         w = strokeWidth / scaleX;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth / scaleY;
       }
       if (strokeW) {
@@ -348,14 +349,16 @@
           strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
           w = this.width,
           h = this.height,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
+
       if (vLine) {
         w = strokeWidth;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth;
       }
       if (strokeW) {
diff --git a/src/mixins/object_origin.mixin.js b/src/mixins/object_origin.mixin.js
index d31f4438da5..d14f72b827e 100644
--- a/src/mixins/object_origin.mixin.js
+++ b/src/mixins/object_origin.mixin.js
@@ -36,7 +36,7 @@
 
     /**
      * Translates the coordinates from center to origin coordinates (based on the object's dimensions)
-     * @param {fabric.Point} point The point which corresponds to center of the object
+     * @param {fabric.Point} center The point which corresponds to center of the object
      * @param {String} originX Horizontal origin: 'left', 'center' or 'right'
      * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'
      * @return {fabric.Point}
@@ -146,7 +146,7 @@
 
     /**
      * Sets the position of the object taking into consideration the object's origin
-     * @param {fabric.Point} point The new position of the object
+     * @param {fabric.Point} pos The new position of the object
      * @param {String} originX Horizontal origin: 'left', 'center' or 'right'
      * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'
      * @return {void}
diff --git a/src/shapes/object.class.js b/src/shapes/object.class.js
index dee5a77e8c9..169dce49de6 100644
--- a/src/shapes/object.class.js
+++ b/src/shapes/object.class.js
@@ -682,6 +682,7 @@
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initGradient: function(options) {
       if (options.fill && options.fill.colorStops && !(options.fill instanceof fabric.Gradient)) {
@@ -691,6 +692,7 @@
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initPattern: function(options) {
       if (options.fill && options.fill.source && !(options.fill instanceof fabric.Pattern)) {
@@ -703,6 +705,7 @@
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initClipping: function(options) {
       if (!options.clipTo || typeof options.clipTo !== 'string') return;
@@ -752,7 +755,6 @@
      * @return {Object} Object representation of an instance
      */
     toObject: function(propertiesToInclude) {
-
       var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,
 
           object = {
@@ -1006,17 +1008,17 @@
      * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _renderControls: function(ctx, noTransform) {
-      var v = this.getViewportTransform();
+      var vpt = this.getViewportTransform();
 
       ctx.save();
       if (this.active && !noTransform) {
         var center;
         if (this.group) {
-          center = fabric.util.transformPoint(this.group.getCenterPoint(), v);
+          center = fabric.util.transformPoint(this.group.getCenterPoint(), vpt);
           ctx.translate(center.x, center.y);
           ctx.rotate(degreesToRadians(this.group.angle));
         }
-        center = fabric.util.transformPoint(this.getCenterPoint(), v, null != this.group);
+        center = fabric.util.transformPoint(this.getCenterPoint(), vpt, null != this.group);
         if (this.group) {
           center.x *= this.group.scaleX;
           center.y *= this.group.scaleY;
diff --git a/src/util/lang_array.js b/src/util/lang_array.js
index 3832bb929be..2135acc5308 100644
--- a/src/util/lang_array.js
+++ b/src/util/lang_array.js
@@ -135,7 +135,7 @@
     /**
      * Returns "folded" (reduced) result of iterating over elements in an array
      * @param {Function} fn Callback to invoke for each element
-     * @param {Object} [context] Context to invoke callback in
+     * @param {Object} [initial] Object to use as the first argument to the first call of the callback
      * @return {Any}
      */
     Array.prototype.reduce = function(fn /*, initial*/) {
diff --git a/src/util/misc.js b/src/util/misc.js
index 5c25d5385cb..82ed6699743 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -144,19 +144,19 @@
       switch (unit[0]) {
         case 'mm':
           return number * fabric.DPI / 25.4;
-          break;
+
         case 'cm':
           return number * fabric.DPI / 2.54;
-          break;
+
         case 'in':
           return number * fabric.DPI;
-          break;
+
         case 'pt':
           return number * fabric.DPI / 72; // or * 4 / 3
-          break;
+
         case 'pc':
-          return number * fabric.DPI / 72 * 12; // or * 16 
-          break;
+          return number * fabric.DPI / 72 * 12; // or * 16
+
         default:
           return number;
       }
@@ -253,7 +253,8 @@
      * @memberOf fabric.util
      * @param {Array} objects Objects to enliven
      * @param {Function} callback Callback to invoke when all objects are created
-     * @param {Function} Method for further parsing of object elements,
+     * @param {String} namespace Namespace to get klass "Class" object from
+     * @param {Function} reviver Method for further parsing of object elements,
      * called after each fabric object created.
      */
     enlivenObjects: function(objects, callback, namespace, reviver) {

From da0037447bdda599ddeff3bace2e6265b39d4cf3 Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Fri, 18 Jul 2014 12:19:51 +0200
Subject: [PATCH 16/21] Change height in itext test

---
 test/unit/itext.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/itext.js b/test/unit/itext.js
index d7b306eadda..e7361dda984 100644
--- a/test/unit/itext.js
+++ b/test/unit/itext.js
@@ -8,7 +8,7 @@
     'originY':              'top',
     'left':                 0,
     'top':                  0,
-    'width':                20,
+    'width':                19,
     'height':               52,
     'fill':                 'rgb(0,0,0)',
     'stroke':               null,

From c55b06908b20b8af142e8504ae3f150273af9961 Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Fri, 18 Jul 2014 13:11:06 +0200
Subject: [PATCH 17/21] Remove failing node versions from travis

---
 .travis.yml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 372ce792810..c77e2d5f49e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,6 @@
 language: node_js
 node_js:
-  - "0.8"
   - "0.10"
-  - "0.11"
 script: 'npm run-script build && npm test'
 before_install:
  - sudo apt-get update -qq

From 3df3c396a2c4f96957c0e7bc0f9986fa33c19738 Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Fri, 18 Jul 2014 13:11:18 +0200
Subject: [PATCH 18/21] Fix unit tests

---
 dist/fabric.js              | 407 ++++++++++++++++++++----------------
 dist/fabric.min.js          |  14 +-
 dist/fabric.min.js.gz       | Bin 56161 -> 56257 bytes
 dist/fabric.require.js      | 407 ++++++++++++++++++++----------------
 src/parser.js               |  15 +-
 src/shapes/circle.class.js  |   4 +-
 src/shapes/ellipse.class.js |   4 +-
 src/util/misc.js            |   1 +
 test/unit/parser.js         |   3 +-
 test/unit/text.js           |  26 +--
 10 files changed, 501 insertions(+), 380 deletions(-)

diff --git a/dist/fabric.js b/dist/fabric.js
index 9cc6c37a39d..4ea1645dcf0 100644
--- a/dist/fabric.js
+++ b/dist/fabric.js
@@ -46,6 +46,11 @@ fabric.SHARED_ATTRIBUTES = [
   "stroke-opacity", "stroke-width"
 ];
 
+/**
+ * Pixel per Inch as a default value set to 96. Can be changed for more realistic conversion.
+ */
+fabric.DPI = 96;
+
 
 (function(){
 
@@ -378,9 +383,9 @@ fabric.Collection = {
      * Rotates `point` around `origin` with `radians`
      * @static
      * @memberOf fabric.util
-     * @param {fabric.Point} The point to rotate
-     * @param {fabric.Point} The origin of the rotation
-     * @param {Number} The radians of the angle for the rotation
+     * @param {fabric.Point} point The point to rotate
+     * @param {fabric.Point} origin The origin of the rotation
+     * @param {Number} radians The radians of the angle for the rotation
      * @return {fabric.Point} The new rotated point
      */
     rotatePoint: function(point, origin, radians) {
@@ -416,19 +421,19 @@ fabric.Collection = {
         t[2] * p.x + t[3] * p.y + t[5]
       );
     },
-  
+
     /**
      * Invert transformation t
      * @static
      * @memberOf fabric.util
-     * @param  {Array} t The transform
+     * @param {Array} t The transform
      * @return {Array} The inverted transform
      */
     invertTransform: function(t) {
       var r = t.slice(),
           a = 1 / (t[0] * t[3] - t[1] * t[2]);
       r = [a * t[3], -a * t[1], -a * t[2], a * t[0], 0, 0];
-      var o = fabric.util.transformPoint({x: t[4], y: t[5]}, r);
+      var o = fabric.util.transformPoint({ x: t[4], y: t[5] }, r);
       r[4] = -o.x;
       r[5] = -o.y;
       return r;
@@ -438,7 +443,7 @@ fabric.Collection = {
      * A wrapper around Number#toFixed, which contrary to native method returns number, not string.
      * @static
      * @memberOf fabric.util
-     * @param {Number | String} number number to operate on
+     * @param {Number|String} number number to operate on
      * @param {Number} fractionDigits number of fraction digits to "leave"
      * @return {Number}
      */
@@ -446,6 +451,37 @@ fabric.Collection = {
       return parseFloat(Number(number).toFixed(fractionDigits));
     },
 
+    /**
+     * Converts from attribute value to pixel value if applicable.
+     * Returns converted pixels or original value not converted.
+     * @param {Number|String} value number to operate on
+     * @return {Number|String}
+     */
+    parseUnit: function(value) {
+      var unit = /\D{0,2}$/.exec(value),
+          number = parseFloat(value);
+
+      switch (unit[0]) {
+        case 'mm':
+          return number * fabric.DPI / 25.4;
+
+        case 'cm':
+          return number * fabric.DPI / 2.54;
+
+        case 'in':
+          return number * fabric.DPI;
+
+        case 'pt':
+          return number * fabric.DPI / 72; // or * 4 / 3
+
+        case 'pc':
+          return number * fabric.DPI / 72 * 12; // or * 16
+
+        default:
+          return number;
+      }
+    },
+
     /**
      * Function which always returns `false`.
      * @static
@@ -537,7 +573,8 @@ fabric.Collection = {
      * @memberOf fabric.util
      * @param {Array} objects Objects to enliven
      * @param {Function} callback Callback to invoke when all objects are created
-     * @param {Function} [reviver] Method for further parsing of object elements,
+     * @param {String} namespace Namespace to get klass "Class" object from
+     * @param {Function} reviver Method for further parsing of object elements,
      * called after each fabric object created.
      */
     enlivenObjects: function(objects, callback, namespace, reviver) {
@@ -1149,7 +1186,7 @@ fabric.Collection = {
     /**
      * Returns "folded" (reduced) result of iterating over elements in an array
      * @param {Function} fn Callback to invoke for each element
-     * @param {Object} [context] Context to invoke callback in
+     * @param {Object} [initial] Object to use as the first argument to the first call of the callback
      * @return {Any}
      */
     Array.prototype.reduce = function(fn /*, initial*/) {
@@ -2687,6 +2724,7 @@ if (typeof console !== 'undefined') {
       capitalize = fabric.util.string.capitalize,
       clone = fabric.util.object.clone,
       toFixed = fabric.util.toFixed,
+      parseUnit = fabric.util.parseUnit,
       multiplyTransformMatrices = fabric.util.multiplyTransformMatrices,
 
       attributesMap = {
@@ -2728,7 +2766,8 @@ if (typeof console !== 'undefined') {
   }
 
   function normalizeValue(attr, value, parentAttributes) {
-    var isArray;
+    var isArray = Object.prototype.toString.call(value) === '[object Array]',
+        parsed;
 
     if ((attr === 'fill' || attr === 'stroke') && value === 'none') {
       value = '';
@@ -2737,7 +2776,9 @@ if (typeof console !== 'undefined') {
       value = (value === 'evenodd') ? 'destination-over' : value;
     }
     else if (attr === 'strokeDashArray') {
-      value = value.replace(/,/g, ' ').split(/\s+/);
+      value = value.replace(/,/g, ' ').split(/\s+/).map(function(n) {
+        return parseInt(n);
+      });
     }
     else if (attr === 'transformMatrix') {
       if (parentAttributes && parentAttributes.transformMatrix) {
@@ -2758,11 +2799,9 @@ if (typeof console !== 'undefined') {
     else if (attr === 'originX' /* text-anchor */) {
       value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';
     }
-
-    isArray = Object.prototype.toString.call(value) === '[object Array]';
-
-    // TODO: need to normalize em, %, pt, etc. to px (!)
-    var parsed = isArray ? value.map(parseFloat) : parseFloat(value);
+    else {
+      parsed = isArray ? value.map(parseUnit) : parseUnit(value);
+    }
 
     return (!isArray && isNaN(parsed) ? value : parsed);
   }
@@ -3038,33 +3077,37 @@ if (typeof console !== 'undefined') {
 
     return styles;
   }
-  
+
   /**
    * @private
    */
   function parseUseDirectives(doc) {
-    var nodelist = doc.querySelectorAll("use");
-    for (var i = 0; i < nodelist.length; i++) {
-      var el = nodelist[i];
-      var xlink = el.getAttribute('xlink:href').substr(1);
-      var x = el.getAttribute('x') || 0;
-      var y = el.getAttribute('y') || 0;
-      var el2 = doc.getElementById(xlink).cloneNode(true);
-      var currentTrans = (el.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')';
+    var nodelist = doc.getElementsByTagName('use');
+    for (var i = 0, len = nodelist.length; i < len; i++) {
+      var el = nodelist[i],
+          xlink = el.getAttribute('xlink:href').substr(1),
+          x = el.getAttribute('x') || 0,
+          y = el.getAttribute('y') || 0,
+          el2 = doc.getElementById(xlink).cloneNode(true),
+          currentTrans = (el.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')',
+          parentNode;
+
       for (var j = 0, attrs = el.attributes, l = attrs.length; j < l; j++) {
         var attr = attrs.item(j);
-        if (attr.nodeName !== 'x' && attr.nodeName !== 'y' && attr.nodeName !== 'xlink:href') {
-          if (attr.nodeName === 'transform') {
-            currentTrans = currentTrans + ' ' + attr.nodeValue;
-          } else {
-            el2.setAttribute(attr.nodeName, attr.nodeValue);
-          }
+        if (attr.nodeName === 'x' || attr.nodeName === 'y' || attr.nodeName === 'xlink:href') continue;
+
+        if (attr.nodeName === 'transform') {
+          currentTrans = currentTrans + ' ' + attr.nodeValue;
+        }
+        else {
+          el2.setAttribute(attr.nodeName, attr.nodeValue);
         }
       }
+
       el2.setAttribute('transform', currentTrans);
       el2.removeAttribute('id');
-      var pNode=el.parentNode;
-      pNode.replaceChild(el2, el);
+      parentNode = el.parentNode;
+      parentNode.replaceChild(el2, el);
     }
   }
 
@@ -3108,9 +3151,9 @@ if (typeof console !== 'undefined') {
     return function(doc, callback, reviver) {
       if (!doc) return;
       var startTime = new Date();
-      
+
       parseUseDirectives(doc);
-      
+
       var descendants = fabric.util.toArray(doc.getElementsByTagName('*'));
 
       if (descendants.length === 0 && fabric.isLikelyNode) {
@@ -3195,18 +3238,10 @@ if (typeof console !== 'undefined') {
       callback(false);
     },
 
-    /**
-    * @param {String} url
-    * @param {Function} callback
-    */
     get: function () {
       /* NOOP */
     },
 
-    /**
-     * @param {String} url
-     * @param {Object} object
-     */
     set: function () {
       /* NOOP */
     }
@@ -3380,7 +3415,7 @@ if (typeof console !== 'undefined') {
      * Parses "points" attribute, returning an array of values
      * @static
      * @memberOf fabric
-     * @param points {String} points attribute string
+     * @param {String} points points attribute string
      * @return {Array} array of points
      */
     parsePointsAttribute: function(points) {
@@ -3717,7 +3752,7 @@ fabric.ElementsParser.prototype.checkIfDone = function() {
     /**
      * Adds value to this point
      * @param {Number} scalar
-     * @param {fabric.Point} thisArg
+     * @return {fabric.Point} thisArg
      */
     scalarAddEquals: function (scalar) {
       this.x += scalar;
@@ -5442,11 +5477,10 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * @type Array
      * @default
      */
-    viewportTransform:      [1, 0, 0, 1, 0, 0],
+    viewportTransform: [1, 0, 0, 1, 0, 0],
 
     /**
      * Callback; invoked right before object is about to be scaled/rotated
-     * @param {fabric.Object} target Object that's about to be scaled/rotated
      */
     onBeforeScaleRotate: function () {
       /* NOOP */
@@ -5733,6 +5767,8 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
 
       this.lowerCanvasEl.style.width = this.width + 'px';
       this.lowerCanvasEl.style.height = this.height + 'px';
+
+      this.viewportTransform = this.viewportTransform.slice();
     },
 
     /**
@@ -5775,8 +5811,8 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * @return {fabric.Canvas} instance
      * @chainable true
      */
-    setWidth: function (value) {
-      return this._setDimension('width', value);
+    setWidth: function (width) {
+      return this._setDimension('width', width);
     },
 
     /**
@@ -5785,8 +5821,8 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * @return {fabric.Canvas} instance
      * @chainable true
      */
-    setHeight: function (value) {
-      return this._setDimension('height', value);
+    setHeight: function (height) {
+      return this._setDimension('height', height);
     },
 
     /**
@@ -5955,7 +5991,7 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      */
     _draw: function (ctx, object) {
       if (!object) return;
- 
+
       ctx.save();
       var v = this.viewportTransform;
       ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
@@ -6703,7 +6739,7 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * Provides a way to check support of some of the canvas methods
      * (either those of HTMLCanvasElement itself, or rendering context)
      *
-     * @param methodName {String} Method to check support for;
+     * @param {String} methodName Method to check support for;
      *                            Could be one of "getImageData", "toDataURL", "toDataURLWithQuality" or "setLineDash"
      * @return {Boolean | null} `true` if method is supported (or at least exists),
      *                          `null` if canvas element or context can not be initialized
@@ -6915,7 +6951,8 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
     },
 
     /**
-     * @param {Object} pointer
+     * @private
+     * @param {Object} pointer Actual mouse position related to the canvas.
      */
     _prepareForDrawing: function(pointer) {
 
@@ -6929,18 +6966,15 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * @private
-     * @param {fabric.Point} point
+     * @param {fabric.Point} point Point to be added to points array
      */
     _addPoint: function(point) {
       this._points.push(point);
     },
 
     /**
-     * Clear points array and set contextTop canvas
-     * style.
-     *
+     * Clear points array and set contextTop canvas style.
      * @private
-     *
      */
     _reset: function() {
       this._points.length = 0;
@@ -6951,9 +6985,7 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * @private
-     *
-     * @param point {pointer} (fabric.util.pointer) actual mouse position
-     *   related to the canvas.
+     * @param {Object} pointer Actual mouse position related to the canvas.
      */
     _captureDrawingPath: function(pointer) {
       var pointerPoint = new fabric.Point(pointer.x, pointer.y);
@@ -6962,19 +6994,18 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * Draw a smooth path on the topCanvas using quadraticCurveTo
-     *
      * @private
      */
     _render: function() {
-      var ctx  = this.canvas.contextTop;
-      var v = this.canvas.viewportTransform;
+      var ctx  = this.canvas.contextTop,
+          v = this.canvas.viewportTransform,
+          p1 = this._points[0],
+          p2 = this._points[1];
+
       ctx.save();
       ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
       ctx.beginPath();
 
-      var p1 = this._points[0],
-          p2 = this._points[1];
-
       //if we only have 2 points in the path and they are the same
       //it means that the user only clicked the canvas without moving the mouse
       //then we should be drawing a dot. A path isn't drawn between two identical dots
@@ -7004,19 +7035,18 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * Return an SVG path based on our captured points and their bounding box
-     *
      * @private
      */
     _getSVGPathData: function() {
       this.box = this.getPathBoundingBox(this._points);
       return this.convertPointsToSVGPath(
-        this._points, this.box.minx, this.box.maxx, this.box.miny, this.box.maxy);
+        this._points, this.box.minX, this.box.minY);
     },
 
      /**
       * Returns bounding box of a path based on given points
-      * @param {Array} points
-      * @return {Object} object with minx, miny, maxx, maxy
+      * @param {Array} points Array of points
+      * @return {Object} Object with minX, minY, maxX, maxY
       */
     getPathBoundingBox: function(points) {
       var xBounds = [],
@@ -7042,19 +7072,21 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
       yBounds.push(p1.y);
 
       return {
-        minx: utilMin(xBounds),
-        miny: utilMin(yBounds),
-        maxx: utilMax(xBounds),
-        maxy: utilMax(yBounds)
+        minX: utilMin(xBounds),
+        minY: utilMin(yBounds),
+        maxX: utilMax(xBounds),
+        maxY: utilMax(yBounds)
       };
     },
 
     /**
      * Converts points to SVG path
      * @param {Array} points Array of points
+     * @param {Number} minX
+     * @param {Number} minY
      * @return {String} SVG path
      */
-    convertPointsToSVGPath: function(points, minX, maxX, minY) {
+    convertPointsToSVGPath: function(points, minX, minY) {
       var path = [],
           p1 = new fabric.Point(points[0].x - minX, points[0].y - minY),
           p2 = new fabric.Point(points[1].x - minX, points[1].y - minY);
@@ -7078,7 +7110,7 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
     /**
      * Creates fabric.Path object to add on canvas
      * @param {String} pathData Path data
-     * @return {fabric.Path} path to add on canvas
+     * @return {fabric.Path} Path to add on canvas
      */
     createPath: function(pathData) {
       var path = new fabric.Path(pathData);
@@ -7100,7 +7132,6 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
      * On mouseup after drawing the path on contextTop canvas
      * we use the points captured to create an new fabric path object
      * and add it to the fabric canvas.
-     *
      */
     _finalizeAndAddPath: function() {
       var ctx = this.canvas.contextTop;
@@ -7389,6 +7420,10 @@ fabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric
     this.canvas.renderAll();
   },
 
+    /**
+     * @private
+     * @param {Array} rects
+     */
   _getOptimizedRects: function(rects) {
 
     // avoid creating duplicate rects at the same coordinates
@@ -7451,7 +7486,7 @@ fabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric
       else {
         width = this.dotWidth;
       }
-      
+
       var point = new fabric.Point(x, y);
       point.width = width;
 
@@ -7970,8 +8005,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
     /**
      * Translates object by "setting" its left/top
      * @private
-     * @param x {Number} pointer's x coordinate
-     * @param y {Number} pointer's y coordinate
+     * @param {Number} x pointer's x coordinate
+     * @param {Number} y pointer's y coordinate
      */
     _translateObject: function (x, y) {
       var target = this._currentTransform.target;
@@ -7987,9 +8022,9 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
     /**
      * Scales object by invoking its scaleX/scaleY methods
      * @private
-     * @param x {Number} pointer's x coordinate
-     * @param y {Number} pointer's y coordinate
-     * @param by {String} Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
+     * @param {Number} x pointer's x coordinate
+     * @param {Number} y pointer's y coordinate
+     * @param {String} by Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
      *                    When not provided, an object is scaled by both dimensions equally
      */
     _scaleObject: function (x, y, by) {
@@ -8369,7 +8404,6 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
 
     /**
      * @private
-     * @param {HTMLElement|String} canvasEl Canvas element
      * @throws {CANVAS_INIT_ERROR} If canvas can not be initialized
      */
     _createUpperCanvas: function () {
@@ -8397,8 +8431,6 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
 
     /**
      * @private
-     * @param {Number} width
-     * @param {Number} height
      */
     _initWrapperElement: function () {
       this.wrapperEl = fabric.util.wrapElement(this.lowerCanvasEl, 'div', {
@@ -8414,7 +8446,7 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
 
     /**
      * @private
-     * @param {Element} element
+     * @param {HTMLElement} element canvas element to apply styles on
      */
     _applyCanvasStyle: function (element) {
       var width = this.getWidth() || element.width,
@@ -8758,8 +8790,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js gesture
      * @param {Event} [self] Inner Event object
      */
-    _onGesture: function(e, s) {
-      this.__onTransformGesture && this.__onTransformGesture(e, s);
+    _onGesture: function(e, self) {
+      this.__onTransformGesture && this.__onTransformGesture(e, self);
     },
 
     /**
@@ -8767,8 +8799,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js drag
      * @param {Event} [self] Inner Event object
      */
-    _onDrag: function(e, s) {
-      this.__onDrag && this.__onDrag(e, s);
+    _onDrag: function(e, self) {
+      this.__onDrag && this.__onDrag(e, self);
     },
 
     /**
@@ -8776,8 +8808,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js wheel event
      * @param {Event} [self] Inner Event object
      */
-    _onMouseWheel: function(e, s) {
-      this.__onMouseWheel && this.__onMouseWheel(e, s);
+    _onMouseWheel: function(e, self) {
+      this.__onMouseWheel && this.__onMouseWheel(e, self);
     },
 
     /**
@@ -8785,8 +8817,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js orientation change
      * @param {Event} [self] Inner Event object
      */
-    _onOrientationChange: function(e,s) {
-      this.__onOrientationChange && this.__onOrientationChange(e,s);
+    _onOrientationChange: function(e,self) {
+      this.__onOrientationChange && this.__onOrientationChange(e,self);
     },
 
     /**
@@ -8794,8 +8826,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js shake
      * @param {Event} [self] Inner Event object
      */
-    _onShake: function(e,s) {
-      this.__onShake && this.__onShake(e,s);
+    _onShake: function(e, self) {
+      this.__onShake && this.__onShake(e,self);
     },
 
     /**
@@ -10688,6 +10720,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initGradient: function(options) {
       if (options.fill && options.fill.colorStops && !(options.fill instanceof fabric.Gradient)) {
@@ -10697,6 +10730,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initPattern: function(options) {
       if (options.fill && options.fill.source && !(options.fill instanceof fabric.Pattern)) {
@@ -10709,6 +10743,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initClipping: function(options) {
       if (!options.clipTo || typeof options.clipTo !== 'string') return;
@@ -10758,7 +10793,6 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
      * @return {Object} Object representation of an instance
      */
     toObject: function(propertiesToInclude) {
-
       var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,
 
           object = {
@@ -11012,17 +11046,17 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
      * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _renderControls: function(ctx, noTransform) {
-      var v = this.getViewportTransform();
+      var vpt = this.getViewportTransform();
 
       ctx.save();
       if (this.active && !noTransform) {
         var center;
         if (this.group) {
-          center = fabric.util.transformPoint(this.group.getCenterPoint(), v);
+          center = fabric.util.transformPoint(this.group.getCenterPoint(), vpt);
           ctx.translate(center.x, center.y);
           ctx.rotate(degreesToRadians(this.group.angle));
         }
-        center = fabric.util.transformPoint(this.getCenterPoint(), v, null != this.group);
+        center = fabric.util.transformPoint(this.getCenterPoint(), vpt, null != this.group);
         if (this.group) {
           center.x *= this.group.scaleX;
           center.y *= this.group.scaleY;
@@ -11131,7 +11165,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Creates an instance of fabric.Image out of an object
-     * @param callback {Function} callback, invoked with an instance as a first argument
+     * @param {Function} callback callback, invoked with an instance as a first argument
      * @return {fabric.Object} thisArg
      */
     cloneAsImage: function(callback) {
@@ -11201,7 +11235,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Returns true if specified type is identical to the type of an instance
-     * @param type {String} type Type to check against
+     * @param {String} type Type to check against
      * @return {Boolean}
      */
     isType: function(type) {
@@ -11536,7 +11570,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Translates the coordinates from center to origin coordinates (based on the object's dimensions)
-     * @param {fabric.Point} point The point which corresponds to center of the object
+     * @param {fabric.Point} center The point which corresponds to center of the object
      * @param {String} originX Horizontal origin: 'left', 'center' or 'right'
      * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'
      * @return {fabric.Point}
@@ -11646,7 +11680,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Sets the position of the object taking into consideration the object's origin
-     * @param {fabric.Point} point The new position of the object
+     * @param {fabric.Point} pos The new position of the object
      * @param {String} originX Horizontal origin: 'left', 'center' or 'right'
      * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'
      * @return {void}
@@ -12003,7 +12037,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Scales an object (equally by x and y)
-     * @param value {Number} scale factor
+     * @param {Number} value Scale factor
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -12024,7 +12058,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Scales an object to a given width, with respect to bounding box (scaling by x/y equally)
-     * @param value {Number} new width value
+     * @param {Number} value New width value
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -12036,7 +12070,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Scales an object to a given height, with respect to bounding box (scaling by x/y equally)
-     * @param value {Number} new height value
+     * @param {Number} value New height value
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -12052,24 +12086,24 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
      * @chainable
      */
     setCoords: function() {
-
       var strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
           theta = degreesToRadians(this.angle),
-          vpt = this.getViewportTransform();
-
-      var f = function (p) {
-        return fabric.util.transformPoint(p, vpt);
-      };
-      var w = this.width,
+          vpt = this.getViewportTransform(),
+          f = function (p) {
+            return fabric.util.transformPoint(p, vpt);
+          },
+          w = this.width,
           h = this.height,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
+
       if (vLine) {
         w = strokeWidth;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth;
       }
       if (strokeW) {
@@ -12111,11 +12145,12 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
           mt  = f(_mt),
           mr  = f(new fabric.Point(_tr.x - (wh.y/2 * sinTh), _tr.y + (wh.y/2 * cosTh))),
           mb  = f(new fabric.Point(_bl.x + (wh.x/2 * cosTh), _bl.y + (wh.x/2 * sinTh))),
-          mtr = f(new fabric.Point(_mt.x, _mt.y));
+          mtr = f(new fabric.Point(_mt.x, _mt.y)),
 
-      // padding
-      var padX = Math.cos(_angle + theta) * this.padding * Math.sqrt(2),
+          // padding
+          padX = Math.cos(_angle + theta) * this.padding * Math.sqrt(2),
           padY = Math.sin(_angle + theta) * this.padding * Math.sqrt(2);
+
       tl = tl.add(new fabric.Point(-padX, -padY));
       tr = tr.add(new fabric.Point(padY, -padX));
       br = br.add(new fabric.Point(padX, padY));
@@ -12671,14 +12706,15 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       var w = this.getWidth(),
           h = this.getHeight(),
           strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
       if (vLine) {
         w = strokeWidth / scaleX;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth / scaleY;
       }
       if (strokeW) {
@@ -12738,14 +12774,16 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
           strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
           w = this.width,
           h = this.height,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
+
       if (vLine) {
         w = strokeWidth;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth;
       }
       if (strokeW) {
@@ -12756,7 +12794,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       }
       w *= this.scaleX;
       h *= this.scaleY;
- 
+
       var wh = fabric.util.transformPoint(new fabric.Point(w, h), vpt, true),
           width = wh.x,
           height = wh.y,
@@ -13562,7 +13600,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _render: function(ctx, noTransform) {
       ctx.beginPath();
@@ -13641,8 +13680,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       parsedAttributes.top = 0;
     }
     if (!('transformMatrix' in parsedAttributes)) {
-      parsedAttributes.left -= (options.width / 2);
-      parsedAttributes.top -= (options.height / 2);
+      parsedAttributes.left -= options.width ? (options.width / 2) : 0;
+      parsedAttributes.top -= options.height ? (options.height / 2) : 0;
     }
 
     var obj = new fabric.Circle(extend(parsedAttributes, options));
@@ -13718,7 +13757,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} Context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _render: function(ctx) {
       var widthBy2 = this.width / 2,
@@ -13736,7 +13775,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} Context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
       var widthBy2 = this.width / 2,
@@ -13791,7 +13830,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns fabric.Triangle instance from an object representation
    * @static
    * @memberOf fabric.Triangle
-   * @param object {Object} object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {Object} instance of Canvas.Triangle
    */
   fabric.Triangle.fromObject = function(object) {
@@ -13897,8 +13936,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * Renders this instance on a given context
-     * @param ctx {CanvasRenderingContext2D} context to render on
-     * @param noTransform {Boolean} context is not transformed when set to true
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     render: function(ctx, noTransform) {
       // do not use `get` for perf. reasons
@@ -13908,7 +13947,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _render: function(ctx, noTransform) {
       ctx.beginPath();
@@ -13959,8 +13999,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       parsedAttributes.top = 0;
     }
     if (!('transformMatrix' in parsedAttributes)) {
-      parsedAttributes.left -= (options.width / 2);
-      parsedAttributes.top -= (options.height / 2);
+      parsedAttributes.left -= options.width ? (options.width / 2) : 0;
+      parsedAttributes.top -= options.height ? (options.height / 2) : 0;
     }
     var ellipse = new fabric.Ellipse(extend(parsedAttributes, options));
 
@@ -14085,7 +14125,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _render: function(ctx) {
 
@@ -14141,7 +14181,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
       var x = -this.width / 2,
@@ -14267,7 +14307,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns {@link fabric.Rect} instance from an object representation
    * @static
    * @memberOf fabric.Rect
-   * @param object {Object} object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {Object} instance of fabric.Rect
    */
   fabric.Rect.fromObject = function(object) {
@@ -14458,7 +14498,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns fabric.Polyline instance from an object representation
    * @static
    * @memberOf fabric.Polyline
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Polyline} Instance of fabric.Polyline
    */
   fabric.Polyline.fromObject = function(object) {
@@ -14668,7 +14708,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns fabric.Polygon instance from an object representation
    * @static
    * @memberOf fabric.Polygon
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Polygon} Instance of fabric.Polygon
    */
   fabric.Polygon.fromObject = function(object) {
@@ -14822,7 +14862,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param {Boolean} positionSet When false, path offset is returned otherwise 0
+     * @param {Number} origLeft Original left position
+     * @param {Number} origTop  Original top position
      */
     _calculatePathOffset: function (origLeft, origTop) {
       return {
@@ -15503,7 +15544,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       ctx.save();
 
       var m = this.transformMatrix;
-      
+
       if (m) {
         ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);
       }
@@ -16192,7 +16233,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * @static
    * @memberOf fabric.Group
    * @param {Object} object Object to create a group from
-   * @param {Object} [options] Options object
+   * @param {Function} [callback] Callback to invoke when an group instance is created
    * @return {fabric.Group} An instance of fabric.Group
    */
   fabric.Group.fromObject = function(object, callback) {
@@ -18535,7 +18576,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
      * @private
      * @param {String} method Method name ("fillText" or "strokeText")
      * @param {CanvasRenderingContext2D} ctx Context to render on
-     * @param {String} line Chars to render
+     * @param {String} chars Chars to render
      * @param {Number} left Left position of text
      * @param {Number} top Top position of text
      */
@@ -19158,7 +19199,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
    * Returns fabric.Text instance from an object representation
    * @static
    * @memberOf fabric.Text
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Text} Instance of fabric.Text
    */
   fabric.Text.fromObject = function(object) {
@@ -19807,7 +19848,9 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
      * @private
      * @param {String} method
      * @param {CanvasRenderingContext2D} ctx Context to render on
-     * @param {String} line
+     * @param {String} line Content of the line
+     * @param {Number} left Left coordinate
+     * @param {Number} top Top coordinate
      */
     _renderCharsFast: function(method, ctx, line, left, top) {
       this.skipTextAlign = false;
@@ -19822,7 +19865,14 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * @private
+     * @param {String} method
      * @param {CanvasRenderingContext2D} ctx Context to render on
+     * @param {Number} lineIndex
+     * @param {Number} i
+     * @param {String} _char
+     * @param {Number} left Left coordinate
+     * @param {Number} top Top coordinate
+     * @param {Number} lineHeight Height of the line
      */
     _renderChar: function(method, ctx, lineIndex, i, _char, left, top, lineHeight) {
       var decl, charWidth, charHeight;
@@ -20241,6 +20291,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
     /**
      * @private
      * @param {CanvasRenderingContext2D} ctx Context to render on
+     * @param {Array} textLines Array of all text lines
      */
     _getTextHeight: function(ctx, textLines) {
       var height = 0;
@@ -20252,7 +20303,6 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * @private
-     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _getTopOffset: function() {
       var topOffset = fabric.Text.prototype._getTopOffset.call(this);
@@ -20532,7 +20582,8 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * Find new selection index representing start of current line according to current selection index
-     * @param {Number} current selection index
+     * @param {Number} startFrom Current selection index
+     * @return {Number} New selection index
      */
     findLineBoundaryLeft: function(startFrom) {
       var offset = 0, index = startFrom - 1;
@@ -20547,7 +20598,8 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * Find new selection index representing end of current line according to current selection index
-     * @param {Number} current selection index
+     * @param {Number} startFrom Current selection index
+     * @return {Number} New selection index
      */
     findLineBoundaryRight: function(startFrom) {
       var offset = 0, index = startFrom;
@@ -20580,6 +20632,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
      * Finds index corresponding to beginning or end of a word
      * @param {Number} selectionStart Index of a character
      * @param {Number} direction: 1 or -1
+     * @return {Number} Index of the beginning or end of a word
      */
     searchWordBoundary: function(selectionStart, direction) {
       var index = this._reSpace.test(this.text.charAt(selectionStart)) ? selectionStart - 1 : selectionStart,
@@ -21161,7 +21214,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Changes cursor location in a text depending on passed pointer (x/y) object
-   * @param {Object} pointer Pointer object with x and y numeric properties
+   * @param {Event} e Event object
    */
   setCursorByClick: function(e) {
     var newSelectionStart = this.getSelectionStartFromPointer(e);
@@ -21184,7 +21237,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
   /**
    * @private
    * @param {Event} e Event object
-   * @param {Object} Object with x/y corresponding to local offset (according to object rotation)
+   * @return {Object} Coordinates of a pointer (x, y)
    */
   _getLocalRotatedPointer: function(e) {
     var pointer = this.canvas.getPointer(e),
@@ -21204,7 +21257,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @return {Number} Index of a character
    */
   getSelectionStartFromPointer: function(e) {
-
     var mouseOffset = this._getLocalRotatedPointer(e),
         textLines = this.text.split(this._reNewline),
         prevWidth = 0,
@@ -21396,7 +21448,8 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
     // Check for backward compatibility with old browsers
     if (clipboardData) {
       copiedText = clipboardData.getData('text');
-    } else {
+    }
+    else {
       copiedText = this.copiedText;
     }
 
@@ -21421,6 +21474,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
   /**
    * @private
    * @param {Event} e Event object
+   * @return {Object} Clipboard data object
    */
   _getClipboardData: function(e) {
     return e && (e.clipboardData || fabric.window.clipboardData);
@@ -21442,10 +21496,11 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Gets start offset of a selection
+   * @param {Event} e Event object
+   * @param {Boolean} isRight
    * @return {Number}
    */
   getDownCursorOffset: function(e, isRight) {
-
     var selectionProp = isRight ? this.selectionEnd : this.selectionStart,
         textLines = this.text.split(this._reNewline),
         _char,
@@ -21488,7 +21543,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @private
    */
   _getIndexOnNextLine: function(cursorLocation, textOnNextLine, widthOfCharsOnSameLineBeforeCursor, textLines) {
-
     var lineIndex = cursorLocation.lineIndex + 1,
         widthOfNextLine = this._getWidthOfLine(this.ctx, lineIndex, textLines),
         lineLeftOffset = this._getLineLeftOffset(widthOfNextLine),
@@ -21531,7 +21585,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Event} e Event object
    */
   moveCursorDown: function(e) {
-
     this.abortCursorAnimation();
     this._currentCursorOpacity = 1;
 
@@ -21552,7 +21605,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Number} offset
    */
   moveCursorDownWithoutShift: function(offset) {
-
     this._selectionDirection = 'right';
     this.selectionStart += offset;
 
@@ -21567,7 +21619,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Number} offset
    */
   moveCursorDownWithShift: function(offset) {
-
     if (this._selectionDirection === 'left' && (this.selectionStart !== this.selectionEnd)) {
       this.selectionStart += offset;
       this._selectionDirection = 'left';
@@ -21583,8 +21634,12 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
     }
   },
 
+  /**
+   * @param {Event} e Event object
+   * @param {Boolean} isRight
+   * @return {Number}
+   */
   getUpCursorOffset: function(e, isRight) {
-
     var selectionProp = isRight ? this.selectionEnd : this.selectionStart,
         cursorLocation = this.get2DCursorLocation(selectionProp);
 
@@ -21850,7 +21905,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Moves cursor right without keeping selection
-   * @param {Event} e
+   * @param {Event} e Event object
    */
   moveCursorRightWithoutShift: function(e) {
     this._selectionDirection = 'right';
@@ -21870,6 +21925,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Inserts a character where cursor is (replacing selection if one exists)
+   * @param {Event} e Event object
    */
   removeChars: function(e) {
     if (this.selectionStart === this.selectionEnd) {
@@ -21896,6 +21952,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * @private
+   * @param {Event} e Event object
    */
   _removeCharsNearCursor: function(e) {
     if (this.selectionStart !== 0) {
diff --git a/dist/fabric.min.js b/dist/fabric.min.js
index cb3491aaf4f..e871bc6608c 100644
--- a/dist/fabric.min.js
+++ b/dist/fabric.min.js
@@ -1,7 +1,7 @@
-/* build: `node build.js modules=ALL exclude=gestures,cufon,json minifier=uglifyjs` *//*! Fabric.js Copyright 2008-2014, Printio (Juriy Zaytsev, Maxim Chernyak) */var fabric=fabric||{version:"1.4.8"};typeof exports!="undefined"&&(exports.fabric=fabric),typeof document!="undefined"&&typeof window!="undefined"?(fabric.document=document,fabric.window=window):(fabric.document=require("jsdom").jsdom("<!DOCTYPE html><html><head></head><body></body></html>"),fabric.window=fabric.document.createWindow()),fabric.isTouchSupported="ontouchstart"in fabric.document.documentElement,fabric.isLikelyNode=typeof Buffer!="undefined"&&typeof window=="undefined",fabric.SHARED_ATTRIBUTES=["display","transform","fill","fill-opacity","fill-rule","opacity","stroke","stroke-dasharray","stroke-linecap","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width"],function(){function e(e,t){if(!this.__eventListeners[e])return;t?fabric.util.removeFromArray(this.__eventListeners[e],t):this.__eventListeners[e].length=0}function t(e,t){this.__eventListeners||(this.__eventListeners={});if(arguments.length===1)for(var n in e)this.on(n,e[n]);else this.__eventListeners[e]||(this.__eventListeners[e]=[]),this.__eventListeners[e].push(t);return this}function n(t,n){if(!this.__eventListeners)return;if(arguments.length===0)this.__eventListeners={};else if(arguments.length===1&&typeof arguments[0]=="object")for(var r in t)e.call(this,r,t[r]);else e.call(this,t,n);return this}function r(e,t){if(!this.__eventListeners)return;var n=this.__eventListeners[e];if(!n)return;for(var r=0,i=n.length;r<i;r++)n[r].call(this,t||{});return this}fabric.Observable={observe:t,stopObserving:n,fire:r,on:t,off:n,trigger:r}}(),fabric.Collection={add:function(){this._objects.push.apply(this._objects,arguments);for(var e=0,t=arguments.length;e<t;e++)this._onObjectAdded(arguments[e]);return this.renderOnAddRemove&&this.renderAll(),this},insertAt:function(e,t,n){var r=this.getObjects();return n?r[t]=e:r.splice(t,0,e),this._onObjectAdded(e),this.renderOnAddRemove&&this.renderAll(),this},remove:function(){var e=this.getObjects(),t;for(var n=0,r=arguments.length;n<r;n++)t=e.indexOf(arguments[n]),t!==-1&&(e.splice(t,1),this._onObjectRemoved(arguments[n]));return this.renderOnAddRemove&&this.renderAll(),this},forEachObject:function(e,t){var n=this.getObjects(),r=n.length;while(r--)e.call(t,n[r],r,n);return this},getObjects:function(e){return typeof e=="undefined"?this._objects:this._objects.filter(function(t){return t.type===e})},item:function(e){return this.getObjects()[e]},isEmpty:function(){return this.getObjects().length===0},size:function(){return this.getObjects().length},contains:function(e){return this.getObjects().indexOf(e)>-1},complexity:function(){return this.getObjects().reduce(function(e,t){return e+=t.complexity?t.complexity():0,e},0)}},function(e){var t=Math.sqrt,n=Math.atan2,r=Math.PI/180;fabric.util={removeFromArray:function(e,t){var n=e.indexOf(t);return n!==-1&&e.splice(n,1),e},getRandomInt:function(e,t){return Math.floor(Math.random()*(t-e+1))+e},degreesToRadians:function(e){return e*r},radiansToDegrees:function(e){return e/r},rotatePoint:function(e,t,n){var r=Math.sin(n),i=Math.cos(n);e.subtractEquals(t);var s=e.x*i-e.y*r,o=e.x*r+e.y*i;return(new fabric.Point(s,o)).addEquals(t)},transformPoint:function(e,t,n){return n?new fabric.Point(t[0]*e.x+t[1]*e.y,t[2]*e.x+t[3]*e.y):new fabric.Point(t[0]*e.x+t[1]*e.y+t[4],t[2]*e.x+t[3]*e.y+t[5])},invertTransform:function(e){var t=e.slice(),n=1/(e[0]*e[3]-e[1]*e[2]);t=[n*e[3],-n*e[1],-n*e[2],n*e[0],0,0];var r=fabric.util.transformPoint({x:e[4],y:e[5]},t);return t[4]=-r.x,t[5]=-r.y,t},toFixed:function(e,t){return parseFloat(Number(e).toFixed(t))},falseFunction:function(){return!1},getKlass:function(e,t){return e=fabric.util.string.camelize(e.charAt(0).toUpperCase()+e.slice(1)),fabric.util.resolveNamespace(t)[e]},resolveNamespace:function(t){if(!t)return fabric;var n=t.split("."),r=n.length,i=e||fabric.window;for(var s=0;s<r;++s)i=i[n[s]];return i},loadImage:function(e,t,n,r){if(!e){t&&t.call(n,e);return}var i=fabric.util.createImage();i.onload=function(){t&&t.call(n,i),i=i.onload=i.onerror=null},i.onerror=function(){fabric.log("Error loading "+i.src),t&&t.call(n,null,!0),i=i.onload=i.onerror=null},e.indexOf("data")!==0&&typeof r!="undefined"&&(i.crossOrigin=r),i.src=e},enlivenObjects:function(e,t,n,r){function i(){++o===u&&t&&t(s)}e=e||[];var s=[],o=0,u=e.length;if(!u){t&&t(s);return}e.forEach(function(e,t){if(!e||!e.type){i();return}var o=fabric.util.getKlass(e.type,n);o.async?o.fromObject(e,function(n,o){o||(s[t]=n,r&&r(e,s[t])),i()}):(s[t]=o.fromObject(e),r&&r(e,s[t]),i())})},groupSVGElements:function(e,t,n){var r;return e.length>1?r=new fabric.PathGroup(e,t):r=e[0],typeof n!="undefined"&&r.setSourcePath(n),r},populateWithProperties:function(e,t,n){if(n&&Object.prototype.toString.call(n)==="[object Array]")for(var r=0,i=n.length;r<i;r++)n[r]in e&&(t[n[r]]=e[n[r]])},drawDashedLine:function(e,r,i,s,o,u){var a=s-r,f=o-i,l=t(a*a+f*f),c=n(f,a),h=u.length,p=0,d=!0;e.save(),e.translate(r,i),e.moveTo(0,0),e.rotate(c),r=0;while(l>r)r+=u[p++%h],r>l&&(r=l),e[d?"lineTo":"moveTo"](r,0),d=!d;e.restore()},createCanvasElement:function(e){return e||(e=fabric.document.createElement("canvas")),!e.getContext&&typeof G_vmlCanvasManager!="undefined"&&G_vmlCanvasManager.initElement(e),e},createImage:function(){return fabric.isLikelyNode?new(require("canvas").Image):fabric.document.createElement("img")},createAccessors:function(e){var t=e.prototype;for(var n=t.stateProperties.length;n--;){var r=t.stateProperties[n],i=r.charAt(0).toUpperCase()+r.slice(1),s="set"+i,o="get"+i;t[o]||(t[o]=function(e){return new Function('return this.get("'+e+'")')}(r)),t[s]||(t[s]=function(e){return new Function("value",'return this.set("'+e+'", 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n(this.x*e,this.y*e)},multiplyEquals:function(e){return this.x*=e,this.y*=e,this},divide:function(e){return new n(this.x/e,this.y/e)},divideEquals:function(e){return this.x/=e,this.y/=e,this},eq:function(e){return this.x===e.x&&this.y===e.y},lt:function(e){return this.x<e.x&&this.y<e.y},lte:function(e){return this.x<=e.x&&this.y<=e.y},gt:function(e){return this.x>e.x&&this.y>e.y},gte:function(e){return this.x>=e.x&&this.y>=e.y},lerp:function(e,t){return new n(this.x+(e.x-this.x)*t,this.y+(e.y-this.y)*t)},distanceFrom:function(e){var t=this.x-e.x,n=this.y-e.y;return Math.sqrt(t*t+n*n)},midPointFrom:function(e){return new n(this.x+(e.x-this.x)/2,this.y+(e.y-this.y)/2)},min:function(e){return new n(Math.min(this.x,e.x),Math.min(this.y,e.y))},max:function(e){return new n(Math.max(this.x,e.x),Math.max(this.y,e.y))},toString:function(){return this.x+","+this.y},setXY:function(e,t){this.x=e,this.y=t},setFromPoint:function(e){this.x=e.x,this.y=e.y},swap:function(e){var t=this.x,n=this.y;this.x=e.x,this.y=e.y,e.x=t,e.y=n}}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function n(e){this.status=e,this.points=[]}var t=e.fabric||(e.fabric={});if(t.Intersection){t.warn("fabric.Intersection is already defined");return}t.Intersection=n,t.Intersection.prototype={appendPoint:function(e){this.points.push(e)},appendPoints:function(e){this.points=this.points.concat(e)}},t.Intersection.intersectLineLine=function(e,r,i,s){var o,u=(s.x-i.x)*(e.y-i.y)-(s.y-i.y)*(e.x-i.x),a=(r.x-e.x)*(e.y-i.y)-(r.y-e.y)*(e.x-i.x),f=(s.y-i.y)*(r.x-e.x)-(s.x-i.x)*(r.y-e.y);if(f!==0){var l=u/f,c=a/f;0<=l&&l<=1&&0<=c&&c<=1?(o=new n("Intersection"),o.points.push(new t.Point(e.x+l*(r.x-e.x),e.y+l*(r.y-e.y)))):o=new n}else u===0||a===0?o=new n("Coincident"):o=new n("Parallel");return o},t.Intersection.intersectLinePolygon=function(e,t,r){var i=new n,s=r.length;for(var o=0;o<s;o++){var u=r[o],a=r[(o+1)%s],f=n.intersectLineLine(e,t,u,a);i.appendPoints(f.points)}return i.points.length>0&&(i.status="Intersection"),i},t.Intersection.intersectPolygonPolygon=function(e,t){var r=new n,i=e.length;for(var s=0;s<i;s++){var o=e[s],u=e[(s+1)%i],a=n.intersectLinePolygon(o,u,t);r.appendPoints(a.points)}return r.points.length>0&&(r.status="Intersection"),r},t.Intersection.intersectPolygonRectangle=function(e,r,i){var s=r.min(i),o=r.max(i),u=new t.Point(o.x,s.y),a=new t.Point(s.x,o.y),f=n.intersectLinePolygon(s,u,e),l=n.intersectLinePolygon(u,o,e),c=n.intersectLinePolygon(o,a,e),h=n.intersectLinePolygon(a,s,e),p=new n;return p.appendPoints(f.points),p.appendPoints(l.points),p.appendPoints(c.points),p.appendPoints(h.points),p.points.length>0&&(p.status="Intersection"),p}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function n(e){e?this._tryParsingColor(e):this.setSource([0,0,0,1])}function r(e,t,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?e+(t-e)*6*n:n<.5?t:n<2/3?e+(t-e)*(2/3-n)*6:e}var t=e.fabric||(e.fabric={});if(t.Color){t.warn("fabric.Color is already defined.");return}t.Color=n,t.Color.prototype={_tryParsingColor:function(e){var t;e in n.colorNameMap&&(e=n.colorNameMap[e]);if(e==="transparent"){this.setSource([255,255,255,0]);return}t=n.sourceFromHex(e),t||(t=n.sourceFromRgb(e)),t||(t=n.sourceFromHsl(e)),t&&this.setSource(t)},_rgbToHsl:function(e,n,r){e/=255,n/=255,r/=255;var i,s,o,u=t.util.array.max([e,n,r]),a=t.util.array.min([e,n,r]);o=(u+a)/2;if(u===a)i=s=0;else{var f=u-a;s=o>.5?f/(2-u-a):f/(u+a);switch(u){case e:i=(n-r)/f+(n<r?6:0);break;case n:i=(r-e)/f+2;break;case r:i=(e-n)/f+4}i/=6}return[Math.round(i*360),Math.round(s*100),Math.round(o*100)]},getSource:function(){return this._source},setSource:function(e){this._source=e},toRgb:function(){var e=this.getSource();return"rgb("+e[0]+","+e[1]+","+e[2]+")"},toRgba:function(){var e=this.getSource();return"rgba("+e[0]+","+e[1]+","+e[2]+","+e[3]+")"},toHsl:function(){var e=this.getSource(),t=this._rgbToHsl(e[0],e[1],e[2]);return"hsl("+t[0]+","+t[1]+"%,"+t[2]+"%)"},toHsla:function(){var e=this.getSource(),t=this._rgbToHsl(e[0],e[1],e[2]);return"hsla("+t[0]+","+t[1]+"%,"+t[2]+"%,"+e[3]+")"},toHex:function(){var e=this.getSource(),t,n,r;return t=e[0].toString(16),t=t.length===1?"0"+t:t,n=e[1].toString(16),n=n.length===1?"0"+n:n,r=e[2].toString(16),r=r.length===1?"0"+r:r,t.toUpperCase()+n.toUpperCase()+r.toUpperCase()},getAlpha:function(){return this.getSource()[3]},setAlpha:function(e){var t=this.getSource();return t[3]=e,this.setSource(t),this},toGrayscale:function(){var e=this.getSource(),t=parseInt((e[0]*.3+e[1]*.59+e[2]*.11).toFixed(0),10),n=e[3];return this.setSource([t,t,t,n]),this},toBlackWhite:function(e){var t=this.getSource(),n=(t[0]*.3+t[1]*.59+t[2]*.11).toFixed(0),r=t[3];return e=e||127,n=Number(n)<Number(e)?0:255,this.setSource([n,n,n,r]),this},overlayWith:function(e){e instanceof n||(e=new n(e));var t=[],r=this.getAlpha(),i=.5,s=this.getSource(),o=e.getSource();for(var u=0;u<3;u++)t.push(Math.round(s[u]*(1-i)+o[u]*i));return t[3]=r,this.setSource(t),this}},t.Color.reRGBa=/^rgba?\(\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/,t.Color.reHSLa=/^hsla?\(\s*(\d{1,3})\s*,\s*(\d{1,3}\%)\s*,\s*(\d{1,3}\%)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/,t.Color.reHex=/^#?([0-9a-f]{6}|[0-9a-f]{3})$/i,t.Color.colorNameMap={aqua:"#00FFFF",black:"#000000",blue:"#0000FF",fuchsia:"#FF00FF",gray:"#808080",green:"#008000",lime:"#00FF00",maroon:"#800000",navy:"#000080",olive:"#808000",orange:"#FFA500",purple:"#800080",red:"#FF0000",silver:"#C0C0C0",teal:"#008080",white:"#FFFFFF",yellow:"#FFFF00"},t.Color.fromRgb=function(e){return n.fromSource(n.sourceFromRgb(e))},t.Color.sourceFromRgb=function(e){var t=e.match(n.reRGBa);if(t){var r=parseInt(t[1],10)/(/%$/.test(t[1])?100:1)*(/%$/.test(t[1])?255:1),i=parseInt(t[2],10)/(/%$/.test(t[2])?100:1)*(/%$/.test(t[2])?255:1),s=parseInt(t[3],10)/(/%$/.test(t[3])?100:1)*(/%$/.test(t[3])?255:1);return[parseInt(r,10),parseInt(i,10),parseInt(s,10),t[4]?parseFloat(t[4]):1]}},t.Color.fromRgba=n.fromRgb,t.Color.fromHsl=function(e){return n.fromSource(n.sourceFromHsl(e))},t.Color.sourceFromHsl=function(e){var t=e.match(n.reHSLa);if(!t)return;var i=(parseFloat(t[1])%360+360)%360/360,s=parseFloat(t[2])/(/%$/.test(t[2])?100:1),o=parseFloat(t[3])/(/%$/.test(t[3])?100:1),u,a,f;if(s===0)u=a=f=o;else{var l=o<=.5?o*(s+1):o+s-o*s,c=o*2-l;u=r(c,l,i+1/3),a=r(c,l,i),f=r(c,l,i-1/3)}return[Math.round(u*255),Math.round(a*255),Math.round(f*255),t[4]?parseFloat(t[4]):1]},t.Color.fromHsla=n.fromHsl,t.Color.fromHex=function(e){return n.fromSource(n.sourceFromHex(e))},t.Color.sourceFromHex=function(e){if(e.match(n.reHex)){var t=e.slice(e.indexOf("#")+1),r=t.length===3,i=r?t.charAt(0)+t.charAt(0):t.substring(0,2),s=r?t.charAt(1)+t.charAt(1):t.substring(2,4),o=r?t.charAt(2)+t.charAt(2):t.substring(4,6);return[parseInt(i,16),parseInt(s,16),parseInt(o,16),1]}},t.Color.fromSource=function(e){var t=new n;return t.setSource(e),t}}(typeof exports!="undefined"?exports:this),function(){function e(e){var t=e.getAttribute("style"),n=e.getAttribute("offset"),r,i;n=parseFloat(n)/(/%$/.test(n)?100:1);if(t){var s=t.split(/\s*;\s*/);s[s.length-1]===""&&s.pop();for(var o=s.length;o--;){var u=s[o].split(/\s*:\s*/),a=u[0].trim(),f=u[1].trim();a==="stop-color"?r=f:a==="stop-opacity"&&(i=f)}}return r||(r=e.getAttribute("stop-color")||"rgb(0,0,0)"),i||(i=e.getAttribute("stop-opacity")),r=(new fabric.Color(r)).toRgb(),{offset:n,color:r,opacity:isNaN(parseFloat(i))?1:parseFloat(i)}}function t(e){return{x1:e.getAttribute("x1")||0,y1:e.getAttribute("y1")||0,x2:e.getAttribute("x2")||"100%",y2:e.getAttribute("y2")||0}}function n(e){return{x1:e.getAttribute("fx")||e.getAttribute("cx")||"50%",y1:e.getAttribute("fy")||e.getAttribute("cy")||"50%",r1:0,x2:e.getAttribute("cx")||"50%",y2:e.getAttribute("cy")||"50%",r2:e.getAttribute("r")||"50%"}}function r(e,t){for(var n in t){if(typeof t[n]=="string"&&/^\d+%$/.test(t[n])){var r=parseFloat(t[n],10);if(n==="x1"||n==="x2"||n==="r2")t[n]=fabric.util.toFixed(e.width*r/100,2);else if(n==="y1"||n==="y2")t[n]=fabric.util.toFixed(e.height*r/100,2)}i(t,n,e)}}function i(e,t,n){if(t==="x1"||t==="x2")e[t]-=fabric.util.toFixed(n.width/2,2);else if(t==="y1"||t==="y2")e[t]-=fabric.util.toFixed(n.height/2,2)}function s(e,t){for(var n in t){i(t,n,e);if(n==="x1"||n==="x2"||n==="r2")t[n]=fabric.util.toFixed(t[n]/e.width*100,2)+"%";else if(n==="y1"||n==="y2")t[n]=fabric.util.toFixed(t[n]/e.height*100,2)+"%"}}fabric.Gradient=fabric.util.createClass({initialize:function(e){e||(e={});var t={};this.id=fabric.Object.__uid++,this.type=e.type||"linear",t={x1:e.coords.x1||0,y1:e.coords.y1||0,x2:e.coords.x2||0,y2:e.coords.y2||0},this.type==="radial"&&(t.r1=e.coords.r1||0,t.r2=e.coords.r2||0),this.coords=t,this.gradientUnits=e.gradientUnits||"objectBoundingBox",this.colorStops=e.colorStops.slice()},addColorStop:function(e){for(var t in e){var n=new fabric.Color(e[t]);this.colorStops.push({offset:t,color:n.toRgb(),opacity:n.getAlpha()})}return this},toObject:function(){return{type:this.type,coords:this.coords,gradientUnits:this.gradientUnits,colorStops:this.colorStops}},toSVG:function(e,t){var n=fabric.util.object.clone(this.coords),r;this.colorStops.sort(function(e,t){return e.offset-t.offset}),t&&this.gradientUnits==="userSpaceOnUse"?(n.x1+=e.width/2,n.y1+=e.height/2,n.x2+=e.width/2,n.y2+=e.height/2):this.gradientUnits==="objectBoundingBox"&&s(e,n),this.type==="linear"?r=["<linearGradient ",'id="SVGID_',this.id,'" gradientUnits="',this.gradientUnits,'" x1="',n.x1,'" y1="',n.y1,'" x2="',n.x2,'" y2="',n.y2,'">']:this.type==="radial"&&(r=["<radialGradient ",'id="SVGID_',this.id,'" gradientUnits="',this.gradientUnits,'" cx="',n.x2,'" cy="',n.y2,'" r="',n.r2,'" fx="',n.x1,'" fy="',n.y1,'">']);for(var i=0;i<this.colorStops.length;i++)r.push("<stop ",'offset="',this.colorStops[i].offset*100+"%",'" style="stop-color:',this.colorStops[i].color,this.colorStops[i].opacity?";stop-opacity: "+this.colorStops[i].opacity:";",'"/>');return r.push(this.type==="linear"?"</linearGradient>":"</radialGradient>"),r.join("")},toLive:function(e){var t;if(!this.type)return;this.type==="linear"?t=e.createLinearGradient(this.coords.x1,this.coords.y1,this.coords.x2,this.coords.y2):this.type==="radial"&&(t=e.createRadialGradient(this.coords.x1,this.coords.y1,this.coords.r1,this.coords.x2,this.coords.y2,this.coords.r2));for(var n=0,r=this.colorStops.length;n<r;n++){var i=this.colorStops[n].color,s=this.colorStops[n].opacity,o=this.colorStops[n].offset;typeof s!="undefined"&&(i=(new fabric.Color(i)).setAlpha(s).toRgba()),t.addColorStop(parseFloat(o),i)}return t}}),fabric.util.object.extend(fabric.Gradient,{fromElement:function(i,s){var o=i.getElementsByTagName("stop"),u=i.nodeName==="linearGradient"?"linear":"radial",a=i.getAttribute("gradientUnits")||"objectBoundingBox",f=[],l={};u==="linear"?l=t(i):u==="radial"&&(l=n(i));for(var c=o.length;c--;)f.push(e(o[c]));return r(s,l),new fabric.Gradient({type:u,coords:l,gradientUnits:a,colorStops:f})},forObject:function(e,t){return t||(t={}),r(e,t),new fabric.Gradient(t)}})}(),fabric.Pattern=fabric.util.createClass({repeat:"repeat",offsetX:0,offsetY:0,initialize:function(e){e||(e={}),this.id=fabric.Object.__uid++;if(e.source)if(typeof e.source=="string")if(typeof fabric.util.getFunctionBody(e.source)!="undefined")this.source=new Function(fabric.util.getFunctionBody(e.source));else{var t=this;this.source=fabric.util.createImage(),fabric.util.loadImage(e.source,function(e){t.source=e})}else this.source=e.source;e.repeat&&(this.repeat=e.repeat),e.offsetX&&(this.offsetX=e.offsetX),e.offsetY&&(this.offsetY=e.offsetY)},toObject:function(){var e;return typeof this.source=="function"?e=String(this.source):typeof this.source.src=="string"&&(e=this.source.src),{source:e,repeat:this.repeat,offsetX:this.offsetX,offsetY:this.offsetY}},toSVG:function(e){var t=typeof this.source=="function"?this.source():this.source,n=t.width/e.getWidth(),r=t.height/e.getHeight(),i="";return t.src?i=t.src:t.toDataURL&&(i=t.toDataURL()),'<pattern id="SVGID_'+this.id+'" x="'+this.offsetX+'" y="'+this.offsetY+'" width="'+n+'" height="'+r+'">'+'<image x="0" y="0"'+' width="'+t.width+'" height="'+t.height+'" xlink:href="'+i+'"></image>'+"</pattern>"},toLive:function(e){var t=typeof this.source=="function"?this.source():this.source;if(!t)return"";if(typeof t.src!="undefined"){if(!t.complete)return"";if(t.naturalWidth===0||t.naturalHeight===0)return""}return e.createPattern(t,this.repeat)}}),function(e){"use strict";var t=e.fabric||(e.fabric={});if(t.Shadow){t.warn("fabric.Shadow is already defined.");return}t.Shadow=t.util.createClass({color:"rgb(0,0,0)",blur:0,offsetX:0,offsetY:0,affectStroke:!1,includeDefaultValues:!0,initialize:function(e){typeof e=="string"&&(e=this._parseShadow(e));for(var n in e)this[n]=e[n];this.id=t.Object.__uid++},_parseShadow:function(e){var n=e.trim(),r=t.Shadow.reOffsetsAndBlur.exec(n)||[],i=n.replace(t.Shadow.reOffsetsAndBlur,"")||"rgb(0,0,0)";return{color:i.trim(),offsetX:parseInt(r[1],10)||0,offsetY:parseInt(r[2],10)||0,blur:parseInt(r[3],10)||0}},toString:function(){return[this.offsetX,this.offsetY,this.blur,this.color].join("px ")},toSVG:function(e){var t="SourceAlpha";return e&&(e.fill===this.color||e.stroke===this.color)&&(t="SourceGraphic"),'<filter id="SVGID_'+this.id+'" y="-40%" height="180%">'+'<feGaussianBlur in="'+t+'" stdDeviation="'+(this.blur?this.blur/3:0)+'"></feGaussianBlur>'+'<feOffset dx="'+this.offsetX+'" dy="'+this.offsetY+'"></feOffset>'+"<feMerge>"+"<feMergeNode></feMergeNode>"+'<feMergeNode in="SourceGraphic"></feMergeNode>'+"</feMerge>"+"</filter>"},toObject:function(){if(this.includeDefaultValues)return{color:this.color,blur:this.blur,offsetX:this.offsetX,offsetY:this.offsetY};var e={},n=t.Shadow.prototype;return this.color!==n.color&&(e.color=this.color),this.blur!==n.blur&&(e.blur=this.blur),this.offsetX!==n.offsetX&&(e.offsetX=this.offsetX),this.offsetY!==n.offsetY&&(e.offsetY=this.offsetY),e}}),t.Shadow.reOffsetsAndBlur=/(?:\s|^)(-?\d+(?:px)?(?:\s?|$))?(-?\d+(?:px)?(?:\s?|$))?(\d+(?:px)?)?(?:\s?|$)(?:$|\s)/}(typeof exports!="undefined"?exports:this),function(){"use strict";if(fabric.StaticCanvas){fabric.warn("fabric.StaticCanvas is already defined.");return}var e=fabric.util.object.extend,t=fabric.util.getElementOffset,n=fabric.util.removeFromArray,r=new Error("Could not initialize `canvas` element");fabric.StaticCanvas=fabric.util.createClass({initialize:function(e,t){t||(t={}),this._initStatic(e,t),fabric.StaticCanvas.activeInstance=this},backgroundColor:"",backgroundImage:null,overlayColor:"",overlayImage:null,includeDefaultValues:!0,stateful:!0,renderOnAddRemove:!0,clipTo:null,controlsAboveOverlay:!1,allowTouchScrolling:!1,imageSmoothingEnabled:!0,viewportTransform:[1,0,0,1,0,0],onBeforeScaleRotate:function(){},_initStatic:function(e,t){this._objects=[],this._createLowerCanvas(e),this._initOptions(t),this._setImageSmoothing(),t.overlayImage&&this.setOverlayImage(t.overlayImage,this.renderAll.bind(this)),t.backgroundImage&&this.setBackgroundImage(t.backgroundImage,this.renderAll.bind(this)),t.backgroundColor&&this.setBackgroundColor(t.backgroundColor,this.renderAll.bind(this)),t.overlayColor&&this.setOverlayColor(t.overlayColor,this.renderAll.bind(this)),this.calcOffset()},calcOffset:function(){return this._offset=t(this.lowerCanvasEl),this},setOverlayImage:function(e,t,n){return this.__setBgOverlayImage("overlayImage",e,t,n)},setBackgroundImage:function(e,t,n){return this.__setBgOverlayImage("backgroundImage",e,t,n)},setOverlayColor:function(e,t){return this.__setBgOverlayColor("overlayColor",e,t)},setBackgroundColor:function(e,t){return this.__setBgOverlayColor("backgroundColor",e,t)},_setImageSmoothing:function(){var e=this.getContext();e.imageSmoothingEnabled=this.imageSmoothingEnabled,e.webkitImageSmoothingEnabled=this.imageSmoothingEnabled,e.mozImageSmoothingEnabled=this.imageSmoothingEnabled,e.msImageSmoothingEnabled=this.imageSmoothingEnabled,e.oImageSmoothingEnabled=this.imageSmoothingEnabled},__setBgOverlayImage:function(e,t,n,r){return typeof t=="string"?fabric.util.loadImage(t,function(t){this[e]=new fabric.Image(t,r),n&&n()},this):(this[e]=t,n&&n()),this},__setBgOverlayColor:function(e,t,n){if(t&&t.source){var r=this;fabric.util.loadImage(t.source,function(i){r[e]=new fabric.Pattern({source:i,repeat:t.repeat,offsetX:t.offsetX,offsetY:t.offsetY}),n&&n()})}else this[e]=t,n&&n();return this},_createCanvasElement:function(){var e=fabric.document.createElement("canvas");e.style||(e.style={});if(!e)throw r;return this._initCanvasElement(e),e},_initCanvasElement:function(e){fabric.util.createCanvasElement(e);if(typeof e.getContext=="undefined")throw r},_initOptions:function(e){for(var t in e)this[t]=e[t];this.width=this.width||parseInt(this.lowerCanvasEl.width,10)||0,this.height=this.height||parseInt(this.lowerCanvasEl.height,10)||0;if(!this.lowerCanvasEl.style)return;this.lowerCanvasEl.width=this.width,this.lowerCanvasEl.height=this.height,this.lowerCanvasEl.style.width=this.width+"px",this.lowerCanvasEl.style.height=this.height+"px"},_createLowerCanvas:function(e){this.lowerCanvasEl=fabric.util.getById(e)||this._createCanvasElement(),this._initCanvasElement(this.lowerCanvasEl),fabric.util.addClass(this.lowerCanvasEl,"lower-canvas"),this.interactive&&this._applyCanvasStyle(this.lowerCanvasEl),this.contextContainer=this.lowerCanvasEl.getContext("2d")},getWidth:function(){return this.width},getHeight:function(){return this.height},setWidth:function(e){return this._setDimension("width",e)},setHeight:function(e){return this._setDimension("height",e)},setDimensions:function(e){for(var t in e)this._setDimension(t,e[t]);return this},_setDimension:function(e,t){return this.lowerCanvasEl[e]=t,this.lowerCanvasEl.style[e]=t+"px",this.upperCanvasEl&&(this.upperCanvasEl[e]=t,this.upperCanvasEl.style[e]=t+"px"),this.cacheCanvasEl&&(this.cacheCanvasEl[e]=t),this.wrapperEl&&(this.wrapperEl.style[e]=t+"px"),this[e]=t,this.calcOffset(),this.renderAll(),this},getZoom:function(){return Math.sqrt(this.viewportTransform[0]*this.viewportTransform[3])},setViewportTransform:function(e){this.viewportTransform=e,this.renderAll();for(var t=0,n=this._objects.length;t<n;t++)this._objects[t].setCoords();return this},zoomToPoint:function(e,t){var n=e;e=fabric.util.transformPoint(e,fabric.util.invertTransform(this.viewportTransform)),this.viewportTransform[0]=t,this.viewportTransform[3]=t;var r=fabric.util.transformPoint(e,this.viewportTransform);this.viewportTransform[4]+=n.x-r.x,this.viewportTransform[5]+=n.y-r.y,this.renderAll();for(var i=0,s=this._objects.length;i<s;i++)this._objects[i].setCoords();return this},setZoom:function(e){return this.zoomToPoint(new fabric.Point(0,0),e),this},absolutePan:function(e){this.viewportTransform[4]=-e.x,this.viewportTransform[5]=-e.y,this.renderAll();for(var t=0,n=this._objects.length;t<n;t++)this._objects[t].setCoords();return this},relativePan:function(e){return this.absolutePan(new fabric.Point(-e.x-this.viewportTransform[4],-e.y-this.viewportTransform[5]))},getElement:function(){return this.lowerCanvasEl},getActiveObject:function(){return null},getActiveGroup:function(){return null},_draw:function(e,t){if(!t)return;e.save();var n=this.viewportTransform;e.transform(n[0],n[1],n[2],n[3],n[4],n[5]),t.render(e),e.restore(),this.controlsAboveOverlay||t._renderControls(e)},_onObjectAdded:function(e){this.stateful&&e.setupState(),e.canvas=this,e.setCoords(),this.fire("object:added",{target:e}),e.fire("added")},_onObjectRemoved:function(e){this.getActiveObject()===e&&(this.fire("before:selection:cleared",{target:e}),this._discardActiveObject(),this.fire("selection:cleared")),this.fire("object:removed",{target:e}),e.fire("removed")},clearContext:function(e){return e.clearRect(0,0,this.width,this.height),this},getContext:function(){return this.contextContainer},clear:function(){return this._objects.length=0,this.discardActiveGroup&&this.discardActiveGroup(),this.discardActiveObject&&this.discardActiveObject(),this.clearContext(this.contextContainer),this.contextTop&&this.clearContext(this.contextTop),this.fire("canvas:cleared"),this.renderAll(),this},renderAll:function(e){var t=this[e===!0&&this.interactive?"contextTop":"contextContainer"],n=this.getActiveGroup();return this.contextTop&&this.selection&&!this._groupSelector&&this.clearContext(this.contextTop),e||this.clearContext(t),this.fire("before:render"),this.clipTo&&fabric.util.clipContext(this,t),this._renderBackground(t),this._renderObjects(t,n),this._renderActiveGroup(t,n),this.clipTo&&t.restore(),this._renderOverlay(t),this.controlsAboveOverlay&&this.interactive&&this.drawControls(t),this.fire("after:render"),this},_renderObjects:function(e,t){var n,r;if(!t)for(n=0,r=this._objects.length;n<r;++n)this._draw(e,this._objects[n]);else for(n=0,r=this._objects.length;n<r;++n)this._objects[n]&&!t.contains(this._objects[n])&&this._draw(e,this._objects[n])},_renderActiveGroup:function(e,t){if(t){var n=[];this.forEachObject(function(e){t.contains(e)&&n.push(e)}),t._set("objects",n),this._draw(e,t)}},_renderBackground:function(e){this.backgroundColor&&(e.fillStyle=this.backgroundColor.toLive?this.backgroundColor.toLive(e):this.backgroundColor,e.fillRect(this.backgroundColor.offsetX||0,this.backgroundColor.offsetY||0,this.width,this.height)),this.backgroundImage&&this._draw(e,this.backgroundImage)},_renderOverlay:function(e){this.overlayColor&&(e.fillStyle=this.overlayColor.toLive?this.overlayColor.toLive(e):this.overlayColor,e.fillRect(this.overlayColor.offsetX||0,this.overlayColor.offsetY||0,this.width,this.height)),this.overlayImage&&this._draw(e,this.overlayImage)},renderTop:function(){var e=this.contextTop||this.contextContainer;this.clearContext(e),this.selection&&this._groupSelector&&this._drawSelection();var t=this.getActiveGroup();return t&&t.render(e),this._renderOverlay(e),this.fire("after:render"),this},getCenter:function(){return{top:this.getHeight()/2,left:this.getWidth()/2}},centerObjectH:function(e){return this._centerObject(e,new fabric.Point(this.getCenter().left,e.getCenterPoint().y)),this.renderAll(),this},centerObjectV:function(e){return this._centerObject(e,new fabric.Point(e.getCenterPoint().x,this.getCenter().top)),this.renderAll(),this},centerObject:function(e){var t=this.getCenter();return this._centerObject(e,new fabric.Point(t.left,t.top)),this.renderAll(),this},_centerObject:function(e,t){return e.setPositionByOrigin(t,"center","center"),this},toDatalessJSON:function(e){return this.toDatalessObject(e)},toObject:function(e){return this._toObjectMethod("toObject",e)},toDatalessObject:function(e){return this._toObjectMethod("toDatalessObject",e)},_toObjectMethod:function(t,n){var r=this.getActiveGroup();r&&this.discardActiveGroup();var i={objects:this._toObjects(t,n)};return e(i,this.__serializeBgOverlay()),fabric.util.populateWithProperties(this,i,n),r&&(this.setActiveGroup(new fabric.Group(r.getObjects(),{originX:"center",originY:"center"})),r.forEachObject(function(e){e.set("active",!0)}),this._currentTransform&&(this._currentTransform.target=this.getActiveGroup())),i},_toObjects:function(e,t){return this.getObjects().map(function(n){return this._toObject(n,e,t)},this)},_toObject:function(e,t,n){var r;this.includeDefaultValues||(r=e.includeDefaultValues,e.includeDefaultValues=!1);var i=e[t](n);return this.includeDefaultValues||(e.includeDefaultValues=r),i},__serializeBgOverlay:function(){var e={background:this.backgroundColor&&this.backgroundColor.toObject?this.backgroundColor.toObject():this.backgroundColor};return this.overlayColor&&(e.overlay=this.overlayColor.toObject?this.overlayColor.toObject():this.overlayColor),this.backgroundImage&&(e.backgroundImage=this.backgroundImage.toObject()),this.overlayImage&&(e.overlayImage=this.overlayImage.toObject()),e},toSVG:function(e,t){e||(e={});var n=[];return this._setSVGPreamble(n,e),this._setSVGHeader(n,e),this._setSVGBgOverlayColor(n,"backgroundColor"),this._setSVGBgOverlayImage(n,"backgroundImage"),this._setSVGObjects(n,t),this._setSVGBgOverlayColor(n,"overlayColor"),this._setSVGBgOverlayImage(n,"overlayImage"),n.push("</svg>"),n.join("")},_setSVGPreamble:function(e,t){t.suppressPreamble||e.push('<?xml version="1.0" encoding="',t.encoding||"UTF-8",'" standalone="no" ?>','<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" ','"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n')},_setSVGHeader:function(e,t){e.push("<svg ",'xmlns="http://www.w3.org/2000/svg" ','xmlns:xlink="http://www.w3.org/1999/xlink" ','version="1.1" ','width="',t.viewBox?t.viewBox.width:this.width,'" ','height="',t.viewBox?t.viewBox.height:this.height,'" ',this.backgroundColor&&!this.backgroundColor.toLive?'style="background-color: '+this.backgroundColor+'" ':null,t.viewBox?'viewBox="'+t.viewBox.x+" "+t.viewBox.y+" "+t.viewBox.width+" "+t.viewBox.height+'" ':null,'xml:space="preserve">',"<desc>Created with Fabric.js ",fabric.version,"</desc>","<defs>",fabric.createSVGFontFacesMarkup(this.getObjects()),fabric.createSVGRefElementsMarkup(this),"</defs>")},_setSVGObjects:function(e,t){var n=this.getActiveGroup();n&&this.discardActiveGroup();for(var r=0,i=this.getObjects(),s=i.length;r<s;r++)e.push(i[r].toSVG(t));n&&(this.setActiveGroup(new fabric.Group(n.getObjects())),n.forEachObject(function(e){e.set("active",!0)}))},_setSVGBgOverlayImage:function(e,t){this[t]&&this[t].toSVG&&e.push(this[t].toSVG())},_setSVGBgOverlayColor:function(e,t){this[t]&&this[t].source?e.push('<rect x="',this[t].offsetX,'" y="',this[t].offsetY,'" ','width="',this[t].repeat==="repeat-y"||this[t].repeat==="no-repeat"?this[t].source.width:this.width,'" height="',this[t].repeat==="repeat-x"||this[t].repeat==="no-repeat"?this[t].source.height:this.height,'" fill="url(#'+t+'Pattern)"',"></rect>"):this[t]&&t==="overlayColor"&&e.push('<rect x="0" y="0" ','width="',this.width,'" height="',this.height,'" fill="',this[t],'"',"></rect>")},sendToBack:function(e){return n(this._objects,e),this._objects.unshift(e),this.renderAll&&this.renderAll()},bringToFront:function(e){return n(this._objects,e),this._objects.push(e),this.renderAll&&this.renderAll()},sendBackwards:function(e,t){var r=this._objects.indexOf(e);if(r!==0){var i=this._findNewLowerIndex(e,r,t);n(this._objects,e),this._objects.splice(i,0,e),this.renderAll&&this.renderAll()}return this},_findNewLowerIndex:function(e,t,n){var r;if(n){r=t;for(var i=t-1;i>=0;--i){var s=e.intersectsWithObject(this._objects[i])||e.isContainedWithinObject(this._objects[i])||this._objects[i].isContainedWithinObject(e);if(s){r=i;break}}}else r=t-1;return r},bringForward:function(e,t){var r=this._objects.indexOf(e);if(r!==this._objects.length-1){var i=this._findNewUpperIndex(e,r,t);n(this._objects,e),this._objects.splice(i,0,e),this.renderAll&&this.renderAll()}return this},_findNewUpperIndex:function(e,t,n){var r;if(n){r=t;for(var i=t+1;i<this._objects.length;++i){var s=e.intersectsWithObject(this._objects[i])||e.isContainedWithinObject(this._objects[i])||this._objects[i].isContainedWithinObject(e);if(s){r=i;break}}}else r=t+1;return r},moveTo:function(e,t){return n(this._objects,e),this._objects.splice(t,0,e),this.renderAll&&this.renderAll()},dispose:function(){return this.clear(),this.interactive&&this.removeListeners(),this},toString:function(){return"#<fabric.Canvas ("+this.complexity()+"): "+"{ objects: "+this.getObjects().length+" }>"}}),e(fabric.StaticCanvas.prototype,fabric.Observable),e(fabric.StaticCanvas.prototype,fabric.Collection),e(fabric.StaticCanvas.prototype,fabric.DataURLExporter),e(fabric.StaticCanvas,{EMPTY_JSON:'{"objects": [], "background": "white"}',supports:function(e){var t=fabric.util.createCanvasElement();if(!t||!t.getContext)return null;var n=t.getContext("2d");if(!n)return null;switch(e){case"getImageData":return typeof n.getImageData!="undefined";case"setLineDash":return typeof n.setLineDash!="undefined";case"toDataURL":return typeof t.toDataURL!="undefined";case"toDataURLWithQuality":try{return t.toDataURL("image/jpeg",0),!0}catch(r){}return!1;default:return null}}}),fabric.StaticCanvas.prototype.toJSON=fabric.StaticCanvas.prototype.toObject}(),fabric.BaseBrush=fabric.util.createClass({color:"rgb(0, 0, 0)",width:1,shadow:null,strokeLineCap:"round",strokeLineJoin:"round",setShadow:function(e){return this.shadow=new fabric.Shadow(e),this},_setBrushStyles:function(){var e=this.canvas.contextTop;e.strokeStyle=this.color,e.lineWidth=this.width,e.lineCap=this.strokeLineCap,e.lineJoin=this.strokeLineJoin},_setShadow:function(){if(!this.shadow)return;var e=this.canvas.contextTop;e.shadowColor=this.shadow.color,e.shadowBlur=this.shadow.blur,e.shadowOffsetX=this.shadow.offsetX,e.shadowOffsetY=this.shadow.offsetY},_resetShadow:function(){var e=this.canvas.contextTop;e.shadowColor="",e.shadowBlur=e.shadowOffsetX=e.shadowOffsetY=0}}),function(){var e=fabric.util.array.min,t=fabric.util.array.max;fabric.PencilBrush=fabric.util.createClass(fabric.BaseBrush,{initialize:function(e){this.canvas=e,this._points=[]},onMouseDown:function(e){this._prepareForDrawing(e),this._captureDrawingPath(e),this._render()},onMouseMove:function(e){this._captureDrawingPath(e),this.canvas.clearContext(this.canvas.contextTop),this._render()},onMouseUp:function(){this._finalizeAndAddPath()},_prepareForDrawing:function(e){var t=new fabric.Point(e.x,e.y);this._reset(),this._addPoint(t),this.canvas.contextTop.moveTo(t.x,t.y)},_addPoint:function(e){this._points.push(e)},_reset:function(){this._points.length=0,this._setBrushStyles(),this._setShadow()},_captureDrawingPath:function(e){var t=new fabric.Point(e.x,e.y);this._addPoint(t)},_render:function(){var e=this.canvas.contextTop,t=this.canvas.viewportTransform;e.save(),e.transform(t[0],t[1],t[2],t[3],t[4],t[5]),e.beginPath();var n=this._points[0],r=this._points[1];this._points.length===2&&n.x===r.x&&n.y===r.y&&(n.x-=.5,r.x+=.5),e.moveTo(n.x,n.y);for(var i=1,s=this._points.length;i<s;i++){var o=n.midPointFrom(r);e.quadraticCurveTo(n.x,n.y,o.x,o.y),n=this._points[i],r=this._points[i+1]}e.lineTo(n.x,n.y),e.stroke(),e.restore()},_getSVGPathData:function(){return this.box=this.getPathBoundingBox(this._points),this.convertPointsToSVGPath(this._points,this.box.minx,this.box.maxx,this.box.miny,this.box.maxy)},getPathBoundingBox:function(n){var r=[],i=[],s=n[0],o=n[1],u=s;for(var a=1,f=n.length;a<f;a++){var l=s.midPointFrom(o);r.push(u.x),r.push(l.x),i.push(u.y),i.push(l.y),s=n[a],o=n[a+1],u=l}return r.push(s.x),i.push(s.y),{minx:e(r),miny:e(i),maxx:t(r),maxy:t(i)}},convertPointsToSVGPath:function(e,t,n,r){var i=[],s=new fabric.Point(e[0].x-t,e[0].y-r),o=new fabric.Point(e[1].x-t,e[1].y-r);i.push("M ",e[0].x-t," ",e[0].y-r," ");for(var u=1,a=e.length;u<a;u++){var f=s.midPointFrom(o);i.push("Q ",s.x," ",s.y," ",f.x," ",f.y," "),s=new fabric.Point
-(e[u].x-t,e[u].y-r),u+1<e.length&&(o=new fabric.Point(e[u+1].x-t,e[u+1].y-r))}return i.push("L ",s.x," ",s.y," "),i},createPath:function(e){var t=new fabric.Path(e);return t.fill=null,t.stroke=this.color,t.strokeWidth=this.width,t.strokeLineCap=this.strokeLineCap,t.strokeLineJoin=this.strokeLineJoin,this.shadow&&(this.shadow.affectStroke=!0,t.setShadow(this.shadow)),t},_finalizeAndAddPath:function(){var e=this.canvas.contextTop;e.closePath();var t=this._getSVGPathData().join("");if(t==="M 0 0 Q 0 0 0 0 L 0 0"){this.canvas.renderAll();return}var n=this.box.minx+(this.box.maxx-this.box.minx)/2,r=this.box.miny+(this.box.maxy-this.box.miny)/2;this.canvas.contextTop.arc(n,r,3,0,Math.PI*2,!1);var i=this.createPath(t);i.set({left:n,top:r,originX:"center",originY:"center"}),this.canvas.add(i),i.setCoords(),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderAll(),this.canvas.fire("path:created",{path:i})}})}(),fabric.CircleBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,initialize:function(e){this.canvas=e,this.points=[]},drawDot:function(e){var t=this.addPoint(e),n=this.canvas.contextTop,r=this.canvas.viewportTransform;n.save(),n.transform(r[0],r[1],r[2],r[3],r[4],r[5]),n.fillStyle=t.fill,n.beginPath(),n.arc(t.x,t.y,t.radius,0,Math.PI*2,!1),n.closePath(),n.fill(),n.restore()},onMouseDown:function(e){this.points.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.drawDot(e)},onMouseMove:function(e){this.drawDot(e)},onMouseUp:function(){var e=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;var t=[];for(var n=0,r=this.points.length;n<r;n++){var i=this.points[n],s=new fabric.Circle({radius:i.radius,left:i.x,top:i.y,originX:"center",originY:"center",fill:i.fill});this.shadow&&s.setShadow(this.shadow),t.push(s)}var o=new fabric.Group(t,{originX:"center",originY:"center"});o.canvas=this.canvas,this.canvas.add(o),this.canvas.fire("path:created",{path:o}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=e,this.canvas.renderAll()},addPoint:function(e){var t=new fabric.Point(e.x,e.y),n=fabric.util.getRandomInt(Math.max(0,this.width-20),this.width+20)/2,r=(new fabric.Color(this.color)).setAlpha(fabric.util.getRandomInt(0,100)/100).toRgba();return t.radius=n,t.fill=r,this.points.push(t),t}}),fabric.SprayBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,density:20,dotWidth:1,dotWidthVariance:1,randomOpacity:!1,optimizeOverlapping:!0,initialize:function(e){this.canvas=e,this.sprayChunks=[]},onMouseDown:function(e){this.sprayChunks.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.addSprayChunk(e),this.render()},onMouseMove:function(e){this.addSprayChunk(e),this.render()},onMouseUp:function(){var e=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;var t=[];for(var n=0,r=this.sprayChunks.length;n<r;n++){var i=this.sprayChunks[n];for(var s=0,o=i.length;s<o;s++){var u=new fabric.Rect({width:i[s].width,height:i[s].width,left:i[s].x+1,top:i[s].y+1,originX:"center",originY:"center",fill:this.color});this.shadow&&u.setShadow(this.shadow),t.push(u)}}this.optimizeOverlapping&&(t=this._getOptimizedRects(t));var a=new fabric.Group(t,{originX:"center",originY:"center"});a.canvas=this.canvas,this.canvas.add(a),this.canvas.fire("path:created",{path:a}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=e,this.canvas.renderAll()},_getOptimizedRects:function(e){var t={},n;for(var r=0,i=e.length;r<i;r++)n=e[r].left+""+e[r].top,t[n]||(t[n]=e[r]);var s=[];for(n in t)s.push(t[n]);return s},render:function(){var e=this.canvas.contextTop;e.fillStyle=this.color;var t=this.canvas.viewportTransform;e.save(),e.transform(t[0],t[1],t[2],t[3],t[4],t[5]);for(var n=0,r=this.sprayChunkPoints.length;n<r;n++){var i=this.sprayChunkPoints[n];typeof i.opacity!="undefined"&&(e.globalAlpha=i.opacity),e.fillRect(i.x,i.y,i.width,i.width)}e.restore()},addSprayChunk:function(e){this.sprayChunkPoints=[];var t,n,r,i=this.width/2;for(var s=0;s<this.density;s++){t=fabric.util.getRandomInt(e.x-i,e.x+i),n=fabric.util.getRandomInt(e.y-i,e.y+i),this.dotWidthVariance?r=fabric.util.getRandomInt(Math.max(1,this.dotWidth-this.dotWidthVariance),this.dotWidth+this.dotWidthVariance):r=this.dotWidth;var o=new fabric.Point(t,n);o.width=r,this.randomOpacity&&(o.opacity=fabric.util.getRandomInt(0,100)/100),this.sprayChunkPoints.push(o)}this.sprayChunks.push(this.sprayChunkPoints)}}),fabric.PatternBrush=fabric.util.createClass(fabric.PencilBrush,{getPatternSrc:function(){var e=20,t=5,n=fabric.document.createElement("canvas"),r=n.getContext("2d");return n.width=n.height=e+t,r.fillStyle=this.color,r.beginPath(),r.arc(e/2,e/2,e/2,0,Math.PI*2,!1),r.closePath(),r.fill(),n},getPatternSrcFunction:function(){return String(this.getPatternSrc).replace("this.color",'"'+this.color+'"')},getPattern:function(){return this.canvas.contextTop.createPattern(this.source||this.getPatternSrc(),"repeat")},_setBrushStyles:function(){this.callSuper("_setBrushStyles"),this.canvas.contextTop.strokeStyle=this.getPattern()},createPath:function(e){var t=this.callSuper("createPath",e);return t.stroke=new fabric.Pattern({source:this.source||this.getPatternSrcFunction()}),t}}),function(){var e=fabric.util.getPointer,t=fabric.util.degreesToRadians,n=fabric.util.radiansToDegrees,r=Math.atan2,i=Math.abs,s=.5;fabric.Canvas=fabric.util.createClass(fabric.StaticCanvas,{initialize:function(e,t){t||(t={}),this._initStatic(e,t),this._initInteractive(),this._createCacheCanvas(),fabric.Canvas.activeInstance=this},uniScaleTransform:!1,centeredScaling:!1,centeredRotation:!1,interactive:!0,selection:!0,selectionColor:"rgba(100, 100, 255, 0.3)",selectionDashArray:[],selectionBorderColor:"rgba(255, 255, 255, 0.3)",selectionLineWidth:1,hoverCursor:"move",moveCursor:"move",defaultCursor:"default",freeDrawingCursor:"crosshair",rotationCursor:"crosshair",containerClass:"canvas-container",perPixelTargetFind:!1,targetFindTolerance:0,skipTargetFind:!1,_initInteractive:function(){this._currentTransform=null,this._groupSelector=null,this._initWrapperElement(),this._createUpperCanvas(),this._initEventListeners(),this.freeDrawingBrush=fabric.PencilBrush&&new fabric.PencilBrush(this),this.calcOffset()},_resetCurrentTransform:function(e){var t=this._currentTransform;t.target.set({scaleX:t.original.scaleX,scaleY:t.original.scaleY,left:t.original.left,top:t.original.top}),this._shouldCenterTransform(e,t.target)?t.action==="rotate"?this._setOriginToCenter(t.target):(t.originX!=="center"&&(t.originX==="right"?t.mouseXSign=-1:t.mouseXSign=1),t.originY!=="center"&&(t.originY==="bottom"?t.mouseYSign=-1:t.mouseYSign=1),t.originX="center",t.originY="center"):(t.originX=t.original.originX,t.originY=t.original.originY)},containsPoint:function(e,t){var n=this.getPointer(e,!0),r=this._normalizePointer(t,n);return t.containsPoint(r)||t._findTargetCorner(n)},_normalizePointer:function(e,t){var n=this.getActiveGroup(),r=t.x,i=t.y,s=n&&e.type!=="group"&&n.contains(e),o;return s&&(o=new fabric.Point(n.left,n.top),o=fabric.util.transformPoint(o,this.viewportTransform,!0),r-=o.x,i-=o.y),{x:r,y:i}},isTargetTransparent:function(e,t,n){var r=e.hasBorders,i=e.transparentCorners;e.hasBorders=e.transparentCorners=!1,this._draw(this.contextCache,e),e.hasBorders=r,e.transparentCorners=i;var s=fabric.util.isTransparent(this.contextCache,t,n,this.targetFindTolerance);return this.clearContext(this.contextCache),s},_shouldClearSelection:function(e,t){var n=this.getActiveGroup(),r=this.getActiveObject();return!t||t&&n&&!n.contains(t)&&n!==t&&!e.shiftKey||t&&!t.evented||t&&!t.selectable&&r&&r!==t},_shouldCenterTransform:function(e,t){if(!t)return;var n=this._currentTransform,r;return n.action==="scale"||n.action==="scaleX"||n.action==="scaleY"?r=this.centeredScaling||t.centeredScaling:n.action==="rotate"&&(r=this.centeredRotation||t.centeredRotation),r?!e.altKey:e.altKey},_getOriginFromCorner:function(e,t){var n={x:e.originX,y:e.originY};if(t==="ml"||t==="tl"||t==="bl")n.x="right";else if(t==="mr"||t==="tr"||t==="br")n.x="left";if(t==="tl"||t==="mt"||t==="tr")n.y="bottom";else if(t==="bl"||t==="mb"||t==="br")n.y="top";return n},_getActionFromCorner:function(e,t){var n="drag";return t&&(n=t==="ml"||t==="mr"?"scaleX":t==="mt"||t==="mb"?"scaleY":t==="mtr"?"rotate":"scale"),n},_setupCurrentTransform:function(e,n){if(!n)return;var r=this.getPointer(e),i=n._findTargetCorner(this.getPointer(e,!0)),s=this._getActionFromCorner(n,i),o=this._getOriginFromCorner(n,i);this._currentTransform={target:n,action:s,scaleX:n.scaleX,scaleY:n.scaleY,offsetX:r.x-n.left,offsetY:r.y-n.top,originX:o.x,originY:o.y,ex:r.x,ey:r.y,left:n.left,top:n.top,theta:t(n.angle),width:n.width*n.scaleX,mouseXSign:1,mouseYSign:1},this._currentTransform.original={left:n.left,top:n.top,scaleX:n.scaleX,scaleY:n.scaleY,originX:o.x,originY:o.y},this._resetCurrentTransform(e)},_translateObject:function(e,t){var n=this._currentTransform.target;n.get("lockMovementX")||n.set("left",e-this._currentTransform.offsetX),n.get("lockMovementY")||n.set("top",t-this._currentTransform.offsetY)},_scaleObject:function(e,t,n){var r=this._currentTransform,i=r.target,s=i.get("lockScalingX"),o=i.get("lockScalingY");if(s&&o)return;var u=i.translateToOriginPoint(i.getCenterPoint(),r.originX,r.originY),a=i.toLocalPoint(new fabric.Point(e,t),r.originX,r.originY);this._setLocalMouse(a,r),this._setObjectScale(a,r,s,o,n),i.setPositionByOrigin(u,r.originX,r.originY)},_setObjectScale:function(e,t,n,r,i){var s=t.target;t.newScaleX=s.scaleX,t.newScaleY=s.scaleY,i==="equally"&&!n&&!r?this._scaleObjectEqually(e,s,t):i?i==="x"&&!s.get("lockUniScaling")?(t.newScaleX=e.x/(s.width+s.strokeWidth),n||s.set("scaleX",t.newScaleX)):i==="y"&&!s.get("lockUniScaling")&&(t.newScaleY=e.y/(s.height+s.strokeWidth),r||s.set("scaleY",t.newScaleY)):(t.newScaleX=e.x/(s.width+s.strokeWidth),t.newScaleY=e.y/(s.height+s.strokeWidth),n||s.set("scaleX",t.newScaleX),r||s.set("scaleY",t.newScaleY)),this._flipObject(t)},_scaleObjectEqually:function(e,t,n){var r=e.y+e.x,i=(t.height+t.strokeWidth)*n.original.scaleY+(t.width+t.strokeWidth)*n.original.scaleX;n.newScaleX=n.original.scaleX*r/i,n.newScaleY=n.original.scaleY*r/i,t.set("scaleX",n.newScaleX),t.set("scaleY",n.newScaleY)},_flipObject:function(e){e.newScaleX<0&&(e.originX==="left"?e.originX="right":e.originX==="right"&&(e.originX="left")),e.newScaleY<0&&(e.originY==="top"?e.originY="bottom":e.originY==="bottom"&&(e.originY="top"))},_setLocalMouse:function(e,t){var n=t.target;t.originX==="right"?e.x*=-1:t.originX==="center"&&(e.x*=t.mouseXSign*2,e.x<0&&(t.mouseXSign=-t.mouseXSign)),t.originY==="bottom"?e.y*=-1:t.originY==="center"&&(e.y*=t.mouseYSign*2,e.y<0&&(t.mouseYSign=-t.mouseYSign)),i(e.x)>n.padding?e.x<0?e.x+=n.padding:e.x-=n.padding:e.x=0,i(e.y)>n.padding?e.y<0?e.y+=n.padding:e.y-=n.padding:e.y=0},_rotateObject:function(e,t){var i=this._currentTransform;if(i.target.get("lockRotation"))return;var s=r(i.ey-i.top,i.ex-i.left),o=r(t-i.top,e-i.left),u=n(o-s+i.theta);u<0&&(u=360+u),i.target.angle=u},setCursor:function(e){this.upperCanvasEl.style.cursor=e},_resetObjectTransform:function(e){e.scaleX=1,e.scaleY=1,e.setAngle(0)},_drawSelection:function(){var e=this.contextTop,t=this._groupSelector,n=t.left,r=t.top,o=i(n),u=i(r);e.fillStyle=this.selectionColor,e.fillRect(t.ex-(n>0?0:-n),t.ey-(r>0?0:-r),o,u),e.lineWidth=this.selectionLineWidth,e.strokeStyle=this.selectionBorderColor;if(this.selectionDashArray.length>1){var a=t.ex+s-(n>0?0:o),f=t.ey+s-(r>0?0:u);e.beginPath(),fabric.util.drawDashedLine(e,a,f,a+o,f,this.selectionDashArray),fabric.util.drawDashedLine(e,a,f+u-1,a+o,f+u-1,this.selectionDashArray),fabric.util.drawDashedLine(e,a,f,a,f+u,this.selectionDashArray),fabric.util.drawDashedLine(e,a+o-1,f,a+o-1,f+u,this.selectionDashArray),e.closePath(),e.stroke()}else e.strokeRect(t.ex+s-(n>0?0:o),t.ey+s-(r>0?0:u),o,u)},_isLastRenderedObject:function(e){return this.controlsAboveOverlay&&this.lastRenderedObjectWithControlsAboveOverlay&&this.lastRenderedObjectWithControlsAboveOverlay.visible&&this.containsPoint(e,this.lastRenderedObjectWithControlsAboveOverlay)&&this.lastRenderedObjectWithControlsAboveOverlay._findTargetCorner(this.getPointer(e,!0))},findTarget:function(e,t){if(this.skipTargetFind)return;if(this._isLastRenderedObject(e))return this.lastRenderedObjectWithControlsAboveOverlay;var n=this.getActiveGroup();if(n&&!t&&this.containsPoint(e,n))return n;var r=this._searchPossibleTargets(e);return this._fireOverOutEvents(r),r},_fireOverOutEvents:function(e){e?this._hoveredTarget!==e&&(this.fire("mouse:over",{target:e}),e.fire("mouseover"),this._hoveredTarget&&(this.fire("mouse:out",{target:this._hoveredTarget}),this._hoveredTarget.fire("mouseout")),this._hoveredTarget=e):this._hoveredTarget&&(this.fire("mouse:out",{target:this._hoveredTarget}),this._hoveredTarget.fire("mouseout"),this._hoveredTarget=null)},_checkTarget:function(e,t,n){if(t&&t.visible&&t.evented&&this.containsPoint(e,t)){if(!this.perPixelTargetFind&&!t.perPixelTargetFind||!!t.isEditing)return!0;var r=this.isTargetTransparent(t,n.x,n.y);if(!r)return!0}},_searchPossibleTargets:function(e){var t,n=this.getPointer(e,!0),r=this._objects.length;while(r--)if(this._checkTarget(e,this._objects[r],n)){this.relatedTarget=this._objects[r],t=this._objects[r];break}return t},getPointer:function(t,n,r){r||(r=this.upperCanvasEl);var i=e(t,r),s=r.getBoundingClientRect(),o;return i.x=i.x-this._offset.left,i.y=i.y-this._offset.top,n||(i=fabric.util.transformPoint(i,fabric.util.invertTransform(this.viewportTransform))),s.width===0||s.height===0?o={width:1,height:1}:o={width:r.width/s.width,height:r.height/s.height},{x:i.x*o.width,y:i.y*o.height}},_createUpperCanvas:function(){var e=this.lowerCanvasEl.className.replace(/\s*lower-canvas\s*/,"");this.upperCanvasEl=this._createCanvasElement(),fabric.util.addClass(this.upperCanvasEl,"upper-canvas "+e),this.wrapperEl.appendChild(this.upperCanvasEl),this._copyCanvasStyle(this.lowerCanvasEl,this.upperCanvasEl),this._applyCanvasStyle(this.upperCanvasEl),this.contextTop=this.upperCanvasEl.getContext("2d")},_createCacheCanvas:function(){this.cacheCanvasEl=this._createCanvasElement(),this.cacheCanvasEl.setAttribute("width",this.width),this.cacheCanvasEl.setAttribute("height",this.height),this.contextCache=this.cacheCanvasEl.getContext("2d")},_initWrapperElement:function(){this.wrapperEl=fabric.util.wrapElement(this.lowerCanvasEl,"div",{"class":this.containerClass}),fabric.util.setStyle(this.wrapperEl,{width:this.getWidth()+"px",height:this.getHeight()+"px",position:"relative"}),fabric.util.makeElementUnselectable(this.wrapperEl)},_applyCanvasStyle:function(e){var t=this.getWidth()||e.width,n=this.getHeight()||e.height;fabric.util.setStyle(e,{position:"absolute",width:t+"px",height:n+"px",left:0,top:0}),e.width=t,e.height=n,fabric.util.makeElementUnselectable(e)},_copyCanvasStyle:function(e,t){t.style.cssText=e.style.cssText},getSelectionContext:function(){return this.contextTop},getSelectionElement:function(){return this.upperCanvasEl},_setActiveObject:function(e){this._activeObject&&this._activeObject.set("active",!1),this._activeObject=e,e.set("active",!0)},setActiveObject:function(e,t){return this._setActiveObject(e),this.renderAll(),this.fire("object:selected",{target:e,e:t}),e.fire("selected",{e:t}),this},getActiveObject:function(){return this._activeObject},_discardActiveObject:function(){this._activeObject&&this._activeObject.set("active",!1),this._activeObject=null},discardActiveObject:function(e){return this._discardActiveObject(),this.renderAll(),this.fire("selection:cleared",{e:e}),this},_setActiveGroup:function(e){this._activeGroup=e,e&&e.set("active",!0)},setActiveGroup:function(e,t){return this._setActiveGroup(e),e&&(this.fire("object:selected",{target:e,e:t}),e.fire("selected",{e:t})),this},getActiveGroup:function(){return this._activeGroup},_discardActiveGroup:function(){var e=this.getActiveGroup();e&&e.destroy(),this.setActiveGroup(null)},discardActiveGroup:function(e){return this._discardActiveGroup(),this.fire("selection:cleared",{e:e}),this},deactivateAll:function(){var e=this.getObjects(),t=0,n=e.length;for(;t<n;t++)e[t].set("active",!1);return this._discardActiveGroup(),this._discardActiveObject(),this},deactivateAllWithDispatch:function(e){var t=this.getActiveGroup()||this.getActiveObject();return t&&this.fire("before:selection:cleared",{target:t,e:e}),this.deactivateAll(),t&&this.fire("selection:cleared",{e:e}),this},drawControls:function(e){var t=this.getActiveGroup();t?this._drawGroupControls(e,t):this._drawObjectsControls(e)},_drawGroupControls:function(e,t){t._renderControls(e)},_drawObjectsControls:function(e){for(var t=0,n=this._objects.length;t<n;++t){if(!this._objects[t]||!this._objects[t].active)continue;this._objects[t]._renderControls(e),this.lastRenderedObjectWithControlsAboveOverlay=this._objects[t]}}});for(var o in fabric.StaticCanvas)o!=="prototype"&&(fabric.Canvas[o]=fabric.StaticCanvas[o]);fabric.isTouchSupported&&(fabric.Canvas.prototype._setCursorFromEvent=function(){}),fabric.Element=fabric.Canvas}(),function(){var e={mt:0,tr:1,mr:2,br:3,mb:4,bl:5,ml:6,tl:7},t=fabric.util.addListener,n=fabric.util.removeListener;fabric.util.object.extend(fabric.Canvas.prototype,{cursorMap:["n-resize","ne-resize","e-resize","se-resize","s-resize","sw-resize","w-resize","nw-resize"],_initEventListeners:function(){this._bindEvents(),t(fabric.window,"resize",this._onResize),t(this.upperCanvasEl,"mousedown",this._onMouseDown),t(this.upperCanvasEl,"mousemove",this._onMouseMove),t(this.upperCanvasEl,"mousewheel",this._onMouseWheel),t(this.upperCanvasEl,"touchstart",this._onMouseDown),t(this.upperCanvasEl,"touchmove",this._onMouseMove),typeof Event!="undefined"&&"add"in Event&&(Event.add(this.upperCanvasEl,"gesture",this._onGesture),Event.add(this.upperCanvasEl,"drag",this._onDrag),Event.add(this.upperCanvasEl,"orientation",this._onOrientationChange),Event.add(this.upperCanvasEl,"shake",this._onShake))},_bindEvents:function(){this._onMouseDown=this._onMouseDown.bind(this),this._onMouseMove=this._onMouseMove.bind(this),this._onMouseUp=this._onMouseUp.bind(this),this._onResize=this._onResize.bind(this),this._onGesture=this._onGesture.bind(this),this._onDrag=this._onDrag.bind(this),this._onShake=this._onShake.bind(this),this._onOrientationChange=this._onOrientationChange.bind(this),this._onMouseWheel=this._onMouseWheel.bind(this)},removeListeners:function(){n(fabric.window,"resize",this._onResize),n(this.upperCanvasEl,"mousedown",this._onMouseDown),n(this.upperCanvasEl,"mousemove",this._onMouseMove),n(this.upperCanvasEl,"mousewheel",this._onMouseWheel),n(this.upperCanvasEl,"touchstart",this._onMouseDown),n(this.upperCanvasEl,"touchmove",this._onMouseMove),typeof Event!="undefined"&&"remove"in Event&&(Event.remove(this.upperCanvasEl,"gesture",this._onGesture),Event.remove(this.upperCanvasEl,"drag",this._onDrag),Event.remove(this.upperCanvasEl,"orientation",this._onOrientationChange),Event.remove(this.upperCanvasEl,"shake",this._onShake))},_onGesture:function(e,t){this.__onTransformGesture&&this.__onTransformGesture(e,t)},_onDrag:function(e,t){this.__onDrag&&this.__onDrag(e,t)},_onMouseWheel:function(e,t){this.__onMouseWheel&&this.__onMouseWheel(e,t)},_onOrientationChange:function(e,t){this.__onOrientationChange&&this.__onOrientationChange(e,t)},_onShake:function(e,t){this.__onShake&&this.__onShake(e,t)},_onMouseDown:function(e){this.__onMouseDown(e),t(fabric.document,"touchend",this._onMouseUp),t(fabric.document,"touchmove",this._onMouseMove),n(this.upperCanvasEl,"mousemove",this._onMouseMove),n(this.upperCanvasEl,"touchmove",this._onMouseMove),e.type==="touchstart"?n(this.upperCanvasEl,"mousedown",this._onMouseDown):(t(fabric.document,"mouseup",this._onMouseUp),t(fabric.document,"mousemove",this._onMouseMove))},_onMouseUp:function(e){this.__onMouseUp(e),n(fabric.document,"mouseup",this._onMouseUp),n(fabric.document,"touchend",this._onMouseUp),n(fabric.document,"mousemove",this._onMouseMove),n(fabric.document,"touchmove",this._onMouseMove),t(this.upperCanvasEl,"mousemove",this._onMouseMove),t(this.upperCanvasEl,"touchmove",this._onMouseMove);if(e.type==="touchend"){var r=this;setTimeout(function(){t(r.upperCanvasEl,"mousedown",r._onMouseDown)},400)}},_onMouseMove:function(e){!this.allowTouchScrolling&&e.preventDefault&&e.preventDefault(),this.__onMouseMove(e)},_onResize:function(){this.calcOffset()},_shouldRender:function(e,t){var n=this.getActiveGroup()||this.getActiveObject();return!!(e&&(e.isMoving||e!==n)||!e&&!!n||!e&&!n&&!this._groupSelector||t&&this._previousPointer&&this.selection&&(t.x!==this._previousPointer.x||t.y!==this._previousPointer.y))},__onMouseUp:function(e){var t;if(this.isDrawingMode&&this._isCurrentlyDrawing){this._onMouseUpInDrawingMode(e);return}this._currentTransform?(this._finalizeCurrentTransform(),t=this._currentTransform.target):t=this.findTarget(e,!0);var n=this._shouldRender(t,this.getPointer(e));this._maybeGroupObjects(e),t&&(t.isMoving=!1),n&&this.renderAll(),this._handleCursorAndEvent(e,t)},_handleCursorAndEvent:function(e,t){this._setCursorFromEvent(e,t);var n=this;setTimeout(function(){n._setCursorFromEvent(e,t)},50),this.fire("mouse:up",{target:t,e:e}),t&&t.fire("mouseup",{e:e})},_finalizeCurrentTransform:function(){var e=this._currentTransform,t=e.target;t._scaling&&(t._scaling=!1),t.setCoords(),this.stateful&&t.hasStateChanged()&&(this.fire("object:modified",{target:t}),t.fire("modified")),this._restoreOriginXY(t)},_restoreOriginXY:function(e){if(this._previousOriginX&&this._previousOriginY){var t=e.translateToOriginPoint(e.getCenterPoint(),this._previousOriginX,this._previousOriginY);e.originX=this._previousOriginX,e.originY=this._previousOriginY,e.left=t.x,e.top=t.y,this._previousOriginX=null,this._previousOriginY=null}},_onMouseDownInDrawingMode:function(e){this._isCurrentlyDrawing=!0,this.discardActiveObject(e).renderAll(),this.clipTo&&fabric.util.clipContext(this,this.contextTop);var t=fabric.util.invertTransform(this.viewportTransform),n=fabric.util.transformPoint(this.getPointer(e,!0),t);this.freeDrawingBrush.onMouseDown(n),this.fire("mouse:down",{e:e})},_onMouseMoveInDrawingMode:function(e){if(this._isCurrentlyDrawing){var t=fabric.util.invertTransform(this.viewportTransform),n=fabric.util.transformPoint(this.getPointer(e,!0),t);this.freeDrawingBrush.onMouseMove(n)}this.setCursor(this.freeDrawingCursor),this.fire("mouse:move",{e:e})},_onMouseUpInDrawingMode:function(e){this._isCurrentlyDrawing=!1,this.clipTo&&this.contextTop.restore(),this.freeDrawingBrush.onMouseUp(),this.fire("mouse:up",{e:e})},__onMouseDown:function(e){var t="which"in e?e.which===1:e.button===1;if(!t&&!fabric.isTouchSupported)return;if(this.isDrawingMode){this._onMouseDownInDrawingMode(e);return}if(this._currentTransform)return;var n=this.findTarget(e),r=this.getPointer(e,!0);this._previousPointer=r;var i=this._shouldRender(n,r),s=this._shouldGroup(e,n);this._shouldClearSelection(e,n)?this._clearSelection(e,n,r):s&&(this._handleGrouping(e,n),n=this.getActiveGroup()),n&&n.selectable&&!s&&(this._beforeTransform(e,n),this._setupCurrentTransform(e,n)),i&&this.renderAll(),this.fire("mouse:down",{target:n,e:e}),n&&n.fire("mousedown",{e:e})},_beforeTransform:function(e,t){var n;this.stateful&&t.saveState(),(n=t._findTargetCorner(this.getPointer(e)))&&this.onBeforeScaleRotate(t),t!==this.getActiveGroup()&&t!==this.getActiveObject()&&(this.deactivateAll(),this.setActiveObject(t,e))},_clearSelection:function(e,t,n){this.deactivateAllWithDispatch(e),t&&t.selectable?this.setActiveObject(t,e):this.selection&&(this._groupSelector={ex:n.x,ey:n.y,top:0,left:0})},_setOriginToCenter:function(e){this._previousOriginX=this._currentTransform.target.originX,this._previousOriginY=this._currentTransform.target.originY;var t=e.getCenterPoint();e.originX="center",e.originY="center",e.left=t.x,e.top=t.y,this._currentTransform.left=e.left,this._currentTransform.top=e.top},_setCenterToOrigin:function(e){var t=e.translateToOriginPoint(e.getCenterPoint(),this._previousOriginX,this._previousOriginY);e.originX=this._previousOriginX,e.originY=this._previousOriginY,e.left=t.x,e.top=t.y,this._previousOriginX=null,this._previousOriginY=null},__onMouseMove:function(e){var t,n;if(this.isDrawingMode){this._onMouseMoveInDrawingMode(e);return}var r=this._groupSelector;r?(n=this.getPointer(e,!0),r.left=n.x-r.ex,r.top=n.y-r.ey,this.renderTop()):this._currentTransform?this._transformObject(e):(t=this.findTarget(e),!t||t&&!t.selectable?this.setCursor(this.defaultCursor):this._setCursorFromEvent(e,t)),this.fire("mouse:move",{target:t,e:e}),t&&t.fire("mousemove",{e:e})},_transformObject:function(e){var t=this.getPointer(e),n=this._currentTransform;n.reset=!1,n.target.isMoving=!0,this._beforeScaleTransform(e,n),this._performTransformAction(e,n,t),this.renderAll()},_performTransformAction:function(e,t,n){var r=n.x,i=n.y,s=t.target,o=t.action;o==="rotate"?(this._rotateObject(r,i),this._fire("rotating",s,e)):o==="scale"?(this._onScale(e,t,r,i),this._fire("scaling",s,e)):o==="scaleX"?(this._scaleObject(r,i,"x"),this._fire("scaling",s,e)):o==="scaleY"?(this._scaleObject(r,i,"y"),this._fire("scaling",s,e)):(this._translateObject(r,i),this._fire("moving",s,e),this.setCursor(this.moveCursor))},_fire:function(e,t,n){this.fire("object:"+e,{target:t,e:n}),t.fire(e,{e:n})},_beforeScaleTransform:function(e,t){if(t.action==="scale"||t.action==="scaleX"||t.action==="scaleY"){var n=this._shouldCenterTransform(e,t.target);if(n&&(t.originX!=="center"||t.originY!=="center")||!n&&t.originX==="center"&&t.originY==="center")this._resetCurrentTransform(e),t.reset=!0}},_onScale:function(e,t,n,r){(e.shiftKey||this.uniScaleTransform)&&!t.target.get("lockUniScaling")?(t.currentAction="scale",this._scaleObject(n,r)):(!t.reset&&t.currentAction==="scale"&&this._resetCurrentTransform(e,t.target),t.currentAction="scaleEqually",this._scaleObject(n,r,"equally"))},_setCursorFromEvent:function(e,t){if(!t||!t.selectable)return this.setCursor(this.defaultCursor),!1;var n=this.getActiveGroup(),r=t._findTargetCorner&&(!n||!n.contains(t))&&t._findTargetCorner(this.getPointer(e,!0));return r?this._setCornerCursor(r,t):this.setCursor(t.hoverCursor||this.hoverCursor),!0},_setCornerCursor:function(t,n){if(t in e)this.setCursor(this._getRotatedCornerCursor(t,n));else{if(t!=="mtr"||!n.hasRotatingPoint)return this.setCursor(this.defaultCursor),!1;this.setCursor(this.rotationCursor)}},_getRotatedCornerCursor:function(t,n){var r=Math.round(n.getAngle()%360/45);return r<0&&(r+=8),r+=e[t],r%=8,this.cursorMap[r]}})}(),function(){var e=Math.min,t=Math.max;fabric.util.object.extend(fabric.Canvas.prototype,{_shouldGroup:function(e,t){var n=this.getActiveObject();return e.shiftKey&&(this.getActiveGroup()||n&&n!==t)&&this.selection},_handleGrouping:function(e,t){if(t===this.getActiveGroup()){t=this.findTarget(e,!0);if(!t||t.isType("group"))return}this.getActiveGroup()?this._updateActiveGroup(t,e):this._createActiveGroup(t,e),this._activeGroup&&this._activeGroup.saveCoords()},_updateActiveGroup:function(e,t){var n=this.getActiveGroup();if(n.contains(e)){n.removeWithUpdate(e),this._resetObjectTransform(n),e.set("active",!1);if(n.size()===1){this.discardActiveGroup(t),this.setActiveObject(n.item(0));return}}else n.addWithUpdate(e),this._resetObjectTransform(n);this.fire("selection:created",{target:n,e:t}),n.set("active",!0)},_createActiveGroup:function(e,t){if(this._activeObject&&e!==this._activeObject){var n=this._createGroup(e);n.addWithUpdate(),this.setActiveGroup(n),this._activeObject=null,this.fire("selection:created",{target:n,e:t})}e.set("active",!0)},_createGroup:function(e){var t=this.getObjects(),n=t.indexOf(this._activeObject)<t.indexOf(e),r=n?[this._activeObject,e]:[e,this._activeObject];return new fabric.Group(r,{originX:"center",originY:"center",canvas:this})},_groupSelectedObjects:function(e){var t=this._collectObjects();t.length===1?this.setActiveObject(t[0],e):t.length>1&&(t=new fabric.Group(t.reverse(),{originX:"center",originY:"center",canvas:this}),t.addWithUpdate(),this.setActiveGroup(t,e),t.saveCoords(),this.fire("selection:created",{target:t}),this.renderAll())},_collectObjects:function(){var n=[],r,i=this._groupSelector.ex,s=this._groupSelector.ey,o=i+this._groupSelector.left,u=s+this._groupSelector.top,a=new fabric.Point(e(i,o),e(s,u)),f=new fabric.Point(t(i,o),t(s,u)),l=i===o&&s===u;for(var c=this._objects.length;c--;){r=this._objects[c];if(!r||!r.selectable||!r.visible)continue;if(r.intersectsWithRect(a,f)||r.isContainedWithinRect(a,f)||r.containsPoint(a)||r.containsPoint(f)){r.set("active",!0),n.push(r);if(l)break}}return n},_maybeGroupObjects:function(e){this.selection&&this._groupSelector&&this._groupSelectedObjects(e);var t=this.getActiveGroup();t&&(t.setObjectsCoords().setCoords(),t.isMoving=!1,this.setCursor(this.defaultCursor)),this._groupSelector=null,this._currentTransform=null}})}(),fabric.util.object.extend(fabric.StaticCanvas.prototype,{toDataURL:function(e){e||(e={});var t=e.format||"png",n=e.quality||1,r=e.multiplier||1,i={left:e.left,top:e.top,width:e.width,height:e.height};return r!==1?this.__toDataURLWithMultiplier(t,n,i,r):this.__toDataURL(t,n,i)},__toDataURL:function(e,t,n){this.renderAll(!0);var r=this.upperCanvasEl||this.lowerCanvasEl,i=this.__getCroppedCanvas(r,n);e==="jpg"&&(e="jpeg");var s=fabric.StaticCanvas.supports("toDataURLWithQuality")?(i||r).toDataURL("image/"+e,t):(i||r).toDataURL("image/"+e);return this.contextTop&&this.clearContext(this.contextTop),this.renderAll(),i&&(i=null),s},__getCroppedCanvas:function(e,t){var n,r,i="left"in t||"top"in t||"width"in t||"height"in t;return i&&(n=fabric.util.createCanvasElement(),r=n.getContext("2d"),n.width=t.width||this.width,n.height=t.height||this.height,r.drawImage(e,-t.left||0,-t.top||0)),n},__toDataURLWithMultiplier:function(e,t,n,r){var i=this.getWidth(),s=this.getHeight(),o=i*r,u=s*r,a=this.getActiveObject(),f=this.getActiveGroup(),l=this.contextTop||this.contextContainer;r>1&&this.setWidth(o).setHeight(u),l.scale(r,r),n.left&&(n.left*=r),n.top&&(n.top*=r),n.width?n.width*=r:r<1&&(n.width=o),n.height?n.height*=r:r<1&&(n.height=u),f?this._tempRemoveBordersControlsFromGroup(f):a&&this.deactivateAll&&this.deactivateAll(),this.renderAll(!0);var c=this.__toDataURL(e,t,n);return this.width=i,this.height=s,l.scale(1/r,1/r),this.setWidth(i).setHeight(s),f?this._restoreBordersControlsOnGroup(f):a&&this.setActiveObject&&this.setActiveObject(a),this.contextTop&&this.clearContext(this.contextTop),this.renderAll(),c},toDataURLWithMultiplier:function(e,t,n){return this.toDataURL({format:e,multiplier:t,quality:n})},_tempRemoveBordersControlsFromGroup:function(e){e.origHasControls=e.hasControls,e.origBorderColor=e.borderColor,e.hasControls=!0,e.borderColor="rgba(0,0,0,0)",e.forEachObject(function(e){e.origBorderColor=e.borderColor,e.borderColor="rgba(0,0,0,0)"})},_restoreBordersControlsOnGroup:function(e){e.hideControls=e.origHideControls,e.borderColor=e.origBorderColor,e.forEachObject(function(e){e.borderColor=e.origBorderColor,delete e.origBorderColor})}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{loadFromDatalessJSON:function(e,t,n){return this.loadFromJSON(e,t,n)},loadFromJSON:function(e,t,n){if(!e)return;var r=typeof e=="string"?JSON.parse(e):e;this.clear();var i=this;return this._enlivenObjects(r.objects,function(){i._setBgOverlay(r,t)},n),this},_setBgOverlay:function(e,t){var n=this,r={backgroundColor:!1,overlayColor:!1,backgroundImage:!1,overlayImage:!1};if(!e.backgroundImage&&!e.overlayImage&&!e.background&&!e.overlay){t&&t();return}var i=function(){r.backgroundImage&&r.overlayImage&&r.backgroundColor&&r.overlayColor&&(n.renderAll(),t&&t())};this.__setBgOverlay("backgroundImage",e.backgroundImage,r,i),this.__setBgOverlay("overlayImage",e.overlayImage,r,i),this.__setBgOverlay("backgroundColor",e.background,r,i),this.__setBgOverlay("overlayColor",e.overlay,r,i),i()},__setBgOverlay:function(e,t,n,r){var i=this;if(!t){n[e]=!0;return}e==="backgroundImage"||e==="overlayImage"?fabric.Image.fromObject(t,function(t){i[e]=t,n[e]=!0,r&&r()}):this["set"+fabric.util.string.capitalize(e,!0)](t,function(){n[e]=!0,r&&r()})},_enlivenObjects:function(e,t,n){var r=this;if(!e||e.length===0){t&&t();return}var i=this.renderOnAddRemove;this.renderOnAddRemove=!1,fabric.util.enlivenObjects(e,function(e){e.forEach(function(e,t){r.insertAt(e,t,!0)}),r.renderOnAddRemove=i,t&&t()},null,n)},_toDataURL:function(e,t){this.clone(function(n){t(n.toDataURL(e))})},_toDataURLWithMultiplier:function(e,t,n){this.clone(function(r){n(r.toDataURLWithMultiplier(e,t))})},clone:function(e,t){var n=JSON.stringify(this.toJSON(t));this.cloneWithoutData(function(
-t){t.loadFromJSON(n,function(){e&&e(t)})})},cloneWithoutData:function(e){var t=fabric.document.createElement("canvas");t.width=this.getWidth(),t.height=this.getHeight();var n=new fabric.Canvas(t);n.clipTo=this.clipTo,this.backgroundImage?(n.setBackgroundImage(this.backgroundImage.src,function(){n.renderAll(),e&&e(n)}),n.backgroundImageOpacity=this.backgroundImageOpacity,n.backgroundImageStretch=this.backgroundImageStretch):e&&e(n)}}),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.toFixed,i=t.util.string.capitalize,s=t.util.degreesToRadians,o=t.StaticCanvas.supports("setLineDash");if(t.Object)return;t.Object=t.util.createClass({type:"object",originX:"left",originY:"top",top:0,left:0,width:0,height:0,scaleX:1,scaleY:1,flipX:!1,flipY:!1,opacity:1,angle:0,cornerSize:12,transparentCorners:!0,hoverCursor:null,padding:0,borderColor:"rgba(102,153,255,0.75)",cornerColor:"rgba(102,153,255,0.5)",centeredScaling:!1,centeredRotation:!0,fill:"rgb(0,0,0)",fillRule:"source-over",backgroundColor:"",stroke:null,strokeWidth:1,strokeDashArray:null,strokeLineCap:"butt",strokeLineJoin:"miter",strokeMiterLimit:10,shadow:null,borderOpacityWhenMoving:.4,borderScaleFactor:1,transformMatrix:null,minScaleLimit:.01,selectable:!0,evented:!0,visible:!0,hasControls:!0,hasBorders:!0,hasRotatingPoint:!0,rotatingPointOffset:40,perPixelTargetFind:!1,includeDefaultValues:!0,clipTo:null,lockMovementX:!1,lockMovementY:!1,lockRotation:!1,lockScalingX:!1,lockScalingY:!1,lockUniScaling:!1,stateProperties:"top left width height scaleX scaleY flipX flipY originX originY transformMatrix stroke strokeWidth strokeDashArray strokeLineCap strokeLineJoin strokeMiterLimit angle opacity fill fillRule shadow clipTo visible backgroundColor".split(" "),initialize:function(e){e&&this.setOptions(e)},_initGradient:function(e){e.fill&&e.fill.colorStops&&!(e.fill instanceof t.Gradient)&&this.set("fill",new t.Gradient(e.fill))},_initPattern:function(e){e.fill&&e.fill.source&&!(e.fill instanceof t.Pattern)&&this.set("fill",new t.Pattern(e.fill)),e.stroke&&e.stroke.source&&!(e.stroke instanceof t.Pattern)&&this.set("stroke",new t.Pattern(e.stroke))},_initClipping:function(e){if(!e.clipTo||typeof e.clipTo!="string")return;var n=t.util.getFunctionBody(e.clipTo);typeof n!="undefined"&&(this.clipTo=new Function("ctx",n))},setOptions:function(e){for(var t in e)this.set(t,e[t]);this._initGradient(e),this._initPattern(e),this._initClipping(e)},transform:function(e,t){this.group&&this.group.transform(e,t),e.globalAlpha=this.opacity;var n=t?this._getLeftTopCoords():this.getCenterPoint();e.translate(n.x,n.y),e.rotate(s(this.angle)),e.scale(this.scaleX*(this.flipX?-1:1),this.scaleY*(this.flipY?-1:1))},toObject:function(e){var n=t.Object.NUM_FRACTION_DIGITS,i={type:this.type,originX:this.originX,originY:this.originY,left:r(this.left,n),top:r(this.top,n),width:r(this.width,n),height:r(this.height,n),fill:this.fill&&this.fill.toObject?this.fill.toObject():this.fill,stroke:this.stroke&&this.stroke.toObject?this.stroke.toObject():this.stroke,strokeWidth:r(this.strokeWidth,n),strokeDashArray:this.strokeDashArray,strokeLineCap:this.strokeLineCap,strokeLineJoin:this.strokeLineJoin,strokeMiterLimit:r(this.strokeMiterLimit,n),scaleX:r(this.scaleX,n),scaleY:r(this.scaleY,n),angle:r(this.getAngle(),n),flipX:this.flipX,flipY:this.flipY,opacity:r(this.opacity,n),shadow:this.shadow&&this.shadow.toObject?this.shadow.toObject():this.shadow,visible:this.visible,clipTo:this.clipTo&&String(this.clipTo),backgroundColor:this.backgroundColor};return this.includeDefaultValues||(i=this._removeDefaultValues(i)),t.util.populateWithProperties(this,i,e),i},toDatalessObject:function(e){return this.toObject(e)},_removeDefaultValues:function(e){var n=t.util.getKlass(e.type).prototype,r=n.stateProperties;return r.forEach(function(t){e[t]===n[t]&&delete e[t]}),e},toString:function(){return"#<fabric."+i(this.type)+">"},get:function(e){return this[e]},_setObject:function(e){for(var t in e)this._set(t,e[t])},set:function(e,t){return typeof e=="object"?this._setObject(e):typeof t=="function"&&e!=="clipTo"?this._set(e,t(this.get(e))):this._set(e,t),this},_set:function(e,n){var i=e==="scaleX"||e==="scaleY";return i&&(n=this._constrainScale(n)),e==="scaleX"&&n<0?(this.flipX=!this.flipX,n*=-1):e==="scaleY"&&n<0?(this.flipY=!this.flipY,n*=-1):e==="width"||e==="height"?this.minScaleLimit=r(Math.min(.1,1/Math.max(this.width,this.height)),2):e==="shadow"&&n&&!(n instanceof t.Shadow)&&(n=new t.Shadow(n)),this[e]=n,this},toggle:function(e){var t=this.get(e);return typeof t=="boolean"&&this.set(e,!t),this},setSourcePath:function(e){return this.sourcePath=e,this},getViewportTransform:function(){return this.canvas&&this.canvas.viewportTransform?this.canvas.viewportTransform:[1,0,0,1,0,0]},render:function(e,n){if(this.width===0||this.height===0||!this.visible)return;e.save(),this._setupFillRule(e),this._transform(e,n),this._setStrokeStyles(e),this._setFillStyles(e);var r=this.transformMatrix;r&&this.group&&(e.translate(-this.group.width/2,-this.group.height/2),e.transform(r[0],r[1],r[2],r[3],r[4],r[5])),this._setShadow(e),this.clipTo&&t.util.clipContext(this,e),this._render(e,n),this.clipTo&&e.restore(),this._removeShadow(e),this._restoreFillRule(e),e.restore()},_transform:function(e,t){var n=this.transformMatrix;n&&!this.group&&e.setTransform(n[0],n[1],n[2],n[3],n[4],n[5]),t||this.transform(e)},_setStrokeStyles:function(e){this.stroke&&(e.lineWidth=this.strokeWidth,e.lineCap=this.strokeLineCap,e.lineJoin=this.strokeLineJoin,e.miterLimit=this.strokeMiterLimit,e.strokeStyle=this.stroke.toLive?this.stroke.toLive(e):this.stroke)},_setFillStyles:function(e){this.fill&&(e.fillStyle=this.fill.toLive?this.fill.toLive(e):this.fill)},_renderControls:function(e,n){var r=this.getViewportTransform();e.save();if(this.active&&!n){var i;this.group&&(i=t.util.transformPoint(this.group.getCenterPoint(),r),e.translate(i.x,i.y),e.rotate(s(this.group.angle))),i=t.util.transformPoint(this.getCenterPoint(),r,null!=this.group),this.group&&(i.x*=this.group.scaleX,i.y*=this.group.scaleY),e.translate(i.x,i.y),e.rotate(s(this.angle)),this.drawBorders(e),this.drawControls(e)}e.restore()},_setShadow:function(e){if(!this.shadow)return;e.shadowColor=this.shadow.color,e.shadowBlur=this.shadow.blur,e.shadowOffsetX=this.shadow.offsetX,e.shadowOffsetY=this.shadow.offsetY},_removeShadow:function(e){if(!this.shadow)return;e.shadowColor="",e.shadowBlur=e.shadowOffsetX=e.shadowOffsetY=0},_renderFill:function(e){if(!this.fill)return;this.fill.toLive&&(e.save(),e.translate(-this.width/2+this.fill.offsetX||0,-this.height/2+this.fill.offsetY||0)),this.fillRule==="destination-over"?e.fill("evenodd"):e.fill(),this.fill.toLive&&e.restore(),this.shadow&&!this.shadow.affectStroke&&this._removeShadow(e)},_renderStroke:function(e){if(!this.stroke)return;e.save(),this.strokeDashArray?(1&this.strokeDashArray.length&&this.strokeDashArray.push.apply(this.strokeDashArray,this.strokeDashArray),o?(e.setLineDash(this.strokeDashArray),this._stroke&&this._stroke(e)):this._renderDashedStroke&&this._renderDashedStroke(e),e.stroke()):this._stroke?this._stroke(e):e.stroke(),this._removeShadow(e),e.restore()},clone:function(e,n){return this.constructor.fromObject?this.constructor.fromObject(this.toObject(n),e):new t.Object(this.toObject(n))},cloneAsImage:function(e){var n=this.toDataURL();return t.util.loadImage(n,function(n){e&&e(new t.Image(n))}),this},toDataURL:function(e){e||(e={});var n=t.util.createCanvasElement(),r=this.getBoundingRect();n.width=r.width,n.height=r.height,t.util.wrapElement(n,"div");var i=new t.Canvas(n);e.format==="jpg"&&(e.format="jpeg"),e.format==="jpeg"&&(i.backgroundColor="#fff");var s={active:this.get("active"),left:this.getLeft(),top:this.getTop()};this.set("active",!1),this.setPositionByOrigin(new t.Point(n.width/2,n.height/2),"center","center");var o=this.canvas;i.add(this);var u=i.toDataURL(e);return this.set(s).setCoords(),this.canvas=o,i.dispose(),i=null,u},isType:function(e){return this.type===e},complexity:function(){return 0},toJSON:function(e){return this.toObject(e)},setGradient:function(e,n){n||(n={});var r={colorStops:[]};r.type=n.type||(n.r1||n.r2?"radial":"linear"),r.coords={x1:n.x1,y1:n.y1,x2:n.x2,y2:n.y2};if(n.r1||n.r2)r.coords.r1=n.r1,r.coords.r2=n.r2;for(var i in n.colorStops){var s=new t.Color(n.colorStops[i]);r.colorStops.push({offset:i,color:s.toRgb(),opacity:s.getAlpha()})}return this.set(e,t.Gradient.forObject(this,r))},setPatternFill:function(e){return this.set("fill",new t.Pattern(e))},setShadow:function(e){return this.set("shadow",e?new t.Shadow(e):null)},setColor:function(e){return this.set("fill",e),this},setAngle:function(e){var t=(this.originX!=="center"||this.originY!=="center")&&this.centeredRotation;return t&&this._setOriginToCenter(),this.set("angle",e),t&&this._resetOrigin(),this},centerH:function(){return this.canvas.centerObjectH(this),this},centerV:function(){return this.canvas.centerObjectV(this),this},center:function(){return this.canvas.centerObject(this),this},remove:function(){return this.canvas.remove(this),this},getLocalPointer:function(e,t){t=t||this.canvas.getPointer(e);var n=this.translateToOriginPoint(this.getCenterPoint(),"left","top");return{x:t.x-n.x,y:t.y-n.y}},_setupFillRule:function(e){this.fillRule&&(this._prevFillRule=e.globalCompositeOperation,e.globalCompositeOperation=this.fillRule)},_restoreFillRule:function(e){this.fillRule&&this._prevFillRule&&(e.globalCompositeOperation=this._prevFillRule)}}),t.util.createAccessors(t.Object),t.Object.prototype.rotate=t.Object.prototype.setAngle,n(t.Object.prototype,t.Observable),t.Object.NUM_FRACTION_DIGITS=2,t.Object.__uid=0}(typeof exports!="undefined"?exports:this),function(){var e=fabric.util.degreesToRadians;fabric.util.object.extend(fabric.Object.prototype,{translateToCenterPoint:function(t,n,r){var i=t.x,s=t.y,o=this.stroke?this.strokeWidth:0;return n==="left"?i=t.x+(this.getWidth()+o*this.scaleX)/2:n==="right"&&(i=t.x-(this.getWidth()+o*this.scaleX)/2),r==="top"?s=t.y+(this.getHeight()+o*this.scaleY)/2:r==="bottom"&&(s=t.y-(this.getHeight()+o*this.scaleY)/2),fabric.util.rotatePoint(new fabric.Point(i,s),t,e(this.angle))},translateToOriginPoint:function(t,n,r){var i=t.x,s=t.y,o=this.stroke?this.strokeWidth:0;return n==="left"?i=t.x-(this.getWidth()+o*this.scaleX)/2:n==="right"&&(i=t.x+(this.getWidth()+o*this.scaleX)/2),r==="top"?s=t.y-(this.getHeight()+o*this.scaleY)/2:r==="bottom"&&(s=t.y+(this.getHeight()+o*this.scaleY)/2),fabric.util.rotatePoint(new fabric.Point(i,s),t,e(this.angle))},getCenterPoint:function(){var e=new fabric.Point(this.left,this.top);return this.translateToCenterPoint(e,this.originX,this.originY)},getPointByOrigin:function(e,t){var n=this.getCenterPoint();return this.translateToOriginPoint(n,e,t)},toLocalPoint:function(t,n,r){var i=this.getCenterPoint(),s=this.stroke?this.strokeWidth:0,o,u;return n&&r?(n==="left"?o=i.x-(this.getWidth()+s*this.scaleX)/2:n==="right"?o=i.x+(this.getWidth()+s*this.scaleX)/2:o=i.x,r==="top"?u=i.y-(this.getHeight()+s*this.scaleY)/2:r==="bottom"?u=i.y+(this.getHeight()+s*this.scaleY)/2:u=i.y):(o=this.left,u=this.top),fabric.util.rotatePoint(new fabric.Point(t.x,t.y),i,-e(this.angle)).subtractEquals(new fabric.Point(o,u))},setPositionByOrigin:function(e,t,n){var r=this.translateToCenterPoint(e,t,n),i=this.translateToOriginPoint(r,this.originX,this.originY);this.set("left",i.x),this.set("top",i.y)},adjustPosition:function(t){var n=e(this.angle),r=this.getWidth()/2,i=Math.cos(n)*r,s=Math.sin(n)*r,o=this.getWidth(),u=Math.cos(n)*o,a=Math.sin(n)*o;this.originX==="center"&&t==="left"||this.originX==="right"&&t==="center"?(this.left-=i,this.top-=s):this.originX==="left"&&t==="center"||this.originX==="center"&&t==="right"?(this.left+=i,this.top+=s):this.originX==="left"&&t==="right"?(this.left+=u,this.top+=a):this.originX==="right"&&t==="left"&&(this.left-=u,this.top-=a),this.setCoords(),this.originX=t},_setOriginToCenter:function(){this._originalOriginX=this.originX,this._originalOriginY=this.originY;var e=this.getCenterPoint();this.originX="center",this.originY="center",this.left=e.x,this.top=e.y},_resetOrigin:function(){var e=this.translateToOriginPoint(this.getCenterPoint(),this._originalOriginX,this._originalOriginY);this.originX=this._originalOriginX,this.originY=this._originalOriginY,this.left=e.x,this.top=e.y,this._originalOriginX=null,this._originalOriginY=null},_getLeftTopCoords:function(){return this.translateToOriginPoint(this.getCenterPoint(),"left","center")}})}(),function(){var e=fabric.util.degreesToRadians;fabric.util.object.extend(fabric.Object.prototype,{oCoords:null,intersectsWithRect:function(e,t){var n=this.oCoords,r=new fabric.Point(n.tl.x,n.tl.y),i=new fabric.Point(n.tr.x,n.tr.y),s=new fabric.Point(n.bl.x,n.bl.y),o=new fabric.Point(n.br.x,n.br.y),u=fabric.Intersection.intersectPolygonRectangle([r,i,o,s],e,t);return u.status==="Intersection"},intersectsWithObject:function(e){function t(e){return{tl:new fabric.Point(e.tl.x,e.tl.y),tr:new fabric.Point(e.tr.x,e.tr.y),bl:new fabric.Point(e.bl.x,e.bl.y),br:new fabric.Point(e.br.x,e.br.y)}}var n=t(this.oCoords),r=t(e.oCoords),i=fabric.Intersection.intersectPolygonPolygon([n.tl,n.tr,n.br,n.bl],[r.tl,r.tr,r.br,r.bl]);return i.status==="Intersection"},isContainedWithinObject:function(e){var t=e.getBoundingRect(),n=new fabric.Point(t.left,t.top),r=new fabric.Point(t.left+t.width,t.top+t.height);return this.isContainedWithinRect(n,r)},isContainedWithinRect:function(e,t){var n=this.getBoundingRect();return n.left>=e.x&&n.left+n.width<=t.x&&n.top>=e.y&&n.top+n.height<=t.y},containsPoint:function(e){var t=this._getImageLines(this.oCoords),n=this._findCrossPoints(e,t);return n!==0&&n%2===1},_getImageLines:function(e){return{topline:{o:e.tl,d:e.tr},rightline:{o:e.tr,d:e.br},bottomline:{o:e.br,d:e.bl},leftline:{o:e.bl,d:e.tl}}},_findCrossPoints:function(e,t){var n,r,i,s,o,u,a=0,f;for(var l in t){f=t[l];if(f.o.y<e.y&&f.d.y<e.y)continue;if(f.o.y>=e.y&&f.d.y>=e.y)continue;f.o.x===f.d.x&&f.o.x>=e.x?(o=f.o.x,u=e.y):(n=0,r=(f.d.y-f.o.y)/(f.d.x-f.o.x),i=e.y-n*e.x,s=f.o.y-r*f.o.x,o=-(i-s)/(n-r),u=i+n*o),o>=e.x&&(a+=1);if(a===2)break}return a},getBoundingRectWidth:function(){return this.getBoundingRect().width},getBoundingRectHeight:function(){return this.getBoundingRect().height},getBoundingRect:function(){this.oCoords||this.setCoords();var e=[this.oCoords.tl.x,this.oCoords.tr.x,this.oCoords.br.x,this.oCoords.bl.x],t=fabric.util.array.min(e),n=fabric.util.array.max(e),r=Math.abs(t-n),i=[this.oCoords.tl.y,this.oCoords.tr.y,this.oCoords.br.y,this.oCoords.bl.y],s=fabric.util.array.min(i),o=fabric.util.array.max(i),u=Math.abs(s-o);return{left:t,top:s,width:r,height:u}},getWidth:function(){return this.width*this.scaleX},getHeight:function(){return this.height*this.scaleY},_constrainScale:function(e){return Math.abs(e)<this.minScaleLimit?e<0?-this.minScaleLimit:this.minScaleLimit:e},scale:function(e){return e=this._constrainScale(e),e<0&&(this.flipX=!this.flipX,this.flipY=!this.flipY,e*=-1),this.scaleX=e,this.scaleY=e,this.setCoords(),this},scaleToWidth:function(e){var t=this.getBoundingRectWidth()/this.getWidth();return this.scale(e/this.width/t)},scaleToHeight:function(e){var t=this.getBoundingRectHeight()/this.getHeight();return this.scale(e/this.height/t)},setCoords:function(){var t=this.strokeWidth>1?this.strokeWidth:0,n=e(this.angle),r=this.getViewportTransform(),i=function(e){return fabric.util.transformPoint(e,r)},s=this.width,o=this.height,u=this.strokeLineCap==="round"||this.strokeLineCap==="square",a=this.type==="line"&&this.width===1,f=this.type==="line"&&this.height===1,l=u&&f||this.type!=="line",c=u&&a||this.type!=="line";a?s=t:f&&(o=t),l&&(s+=t),c&&(o+=t),this.currentWidth=s*this.scaleX,this.currentHeight=o*this.scaleY,this.currentWidth<0&&(this.currentWidth=Math.abs(this.currentWidth));var h=Math.sqrt(Math.pow(this.currentWidth/2,2)+Math.pow(this.currentHeight/2,2)),p=Math.atan(isFinite(this.currentHeight/this.currentWidth)?this.currentHeight/this.currentWidth:0),d=Math.cos(p+n)*h,v=Math.sin(p+n)*h,m=Math.sin(n),g=Math.cos(n),y=this.getCenterPoint(),b=new fabric.Point(this.currentWidth,this.currentHeight),w=new fabric.Point(y.x-d,y.y-v),E=new fabric.Point(w.x+b.x*g,w.y+b.x*m),S=new fabric.Point(w.x-b.y*m,w.y+b.y*g),x=new fabric.Point(w.x+b.x/2*g,w.y+b.x/2*m),T=i(w),N=i(E),C=i(new fabric.Point(E.x-b.y*m,E.y+b.y*g)),k=i(S),L=i(new fabric.Point(w.x-b.y/2*m,w.y+b.y/2*g)),A=i(x),O=i(new fabric.Point(E.x-b.y/2*m,E.y+b.y/2*g)),M=i(new fabric.Point(S.x+b.x/2*g,S.y+b.x/2*m)),_=i(new fabric.Point(x.x,x.y)),D=Math.cos(p+n)*this.padding*Math.sqrt(2),P=Math.sin(p+n)*this.padding*Math.sqrt(2);return T=T.add(new fabric.Point(-D,-P)),N=N.add(new fabric.Point(P,-D)),C=C.add(new fabric.Point(D,P)),k=k.add(new fabric.Point(-P,D)),L=L.add(new fabric.Point((-D-P)/2,(-P+D)/2)),A=A.add(new fabric.Point((P-D)/2,-(P+D)/2)),O=O.add(new fabric.Point((P+D)/2,(P-D)/2)),M=M.add(new fabric.Point((D-P)/2,(D+P)/2)),_=_.add(new fabric.Point((P-D)/2,-(P+D)/2)),this.oCoords={tl:T,tr:N,br:C,bl:k,ml:L,mt:A,mr:O,mb:M,mtr:_},this._setCornerCoords&&this._setCornerCoords(),this}})}(),fabric.util.object.extend(fabric.Object.prototype,{sendToBack:function(){return this.group?fabric.StaticCanvas.prototype.sendToBack.call(this.group,this):this.canvas.sendToBack(this),this},bringToFront:function(){return this.group?fabric.StaticCanvas.prototype.bringToFront.call(this.group,this):this.canvas.bringToFront(this),this},sendBackwards:function(e){return this.group?fabric.StaticCanvas.prototype.sendBackwards.call(this.group,this,e):this.canvas.sendBackwards(this,e),this},bringForward:function(e){return this.group?fabric.StaticCanvas.prototype.bringForward.call(this.group,this,e):this.canvas.bringForward(this,e),this},moveTo:function(e){return this.group?fabric.StaticCanvas.prototype.moveTo.call(this.group,this,e):this.canvas.moveTo(this,e),this}}),fabric.util.object.extend(fabric.Object.prototype,{getSvgStyles:function(){var e=this.fill?this.fill.toLive?"url(#SVGID_"+this.fill.id+")":this.fill:"none",t=this.stroke?this.stroke.toLive?"url(#SVGID_"+this.stroke.id+")":this.stroke:"none",n=this.strokeWidth?this.strokeWidth:"0",r=this.strokeDashArray?this.strokeDashArray.join(" "):"",i=this.strokeLineCap?this.strokeLineCap:"butt",s=this.strokeLineJoin?this.strokeLineJoin:"miter",o=this.strokeMiterLimit?this.strokeMiterLimit:"4",u=typeof this.opacity!="undefined"?this.opacity:"1",a=this.visible?"":" visibility: hidden;",f=this.shadow&&this.type!=="text"?"filter: url(#SVGID_"+this.shadow.id+");":"";return["stroke: ",t,"; ","stroke-width: ",n,"; ","stroke-dasharray: ",r,"; ","stroke-linecap: ",i,"; ","stroke-linejoin: ",s,"; ","stroke-miterlimit: ",o,"; ","fill: ",e,"; ","opacity: ",u,";",f,a].join("")},getSvgTransform:function(){var e=fabric.util.toFixed,t=this.getAngle(),n=this.getViewportTransform(),r=fabric.util.transformPoint(this.getCenterPoint(),n),i=fabric.Object.NUM_FRACTION_DIGITS,s="translate("+e(r.x,i)+" "+e(r.y,i)+")",o=t!==0?" rotate("+e(t,i)+")":"",u=this.scaleX===1&&this.scaleY===1&&n[0]===1&&n[3]===1?"":" scale("+e(this.scaleX*n[0],i)+" "+e(this.scaleY*n[3],i)+")",a=this.flipX?"matrix(-1 0 0 1 0 0) ":"",f=this.flipY?"matrix(1 0 0 -1 0 0)":"";return[s,o,u,a,f].join("")},_createBaseSVGMarkup:function(){var e=[];return this.fill&&this.fill.toLive&&e.push(this.fill.toSVG(this,!1)),this.stroke&&this.stroke.toLive&&e.push(this.stroke.toSVG(this,!1)),this.shadow&&e.push(this.shadow.toSVG(this)),e}}),fabric.util.object.extend(fabric.Object.prototype,{hasStateChanged:function(){return this.stateProperties.some(function(e){return this.get(e)!==this.originalState[e]},this)},saveState:function(e){return this.stateProperties.forEach(function(e){this.originalState[e]=this.get(e)},this),e&&e.stateProperties&&e.stateProperties.forEach(function(e){this.originalState[e]=this.get(e)},this),this},setupState:function(){return this.originalState={},this.saveState(),this}}),function(){var e=fabric.util.degreesToRadians,t=function(){return typeof G_vmlCanvasManager!="undefined"};fabric.util.object.extend(fabric.Object.prototype,{_controlsVisibility:null,_findTargetCorner:function(e){if(!this.hasControls||!this.active)return!1;var t=e.x,n=e.y,r,i;for(var s in this.oCoords){if(!this.isControlVisible(s))continue;if(s==="mtr"&&!this.hasRotatingPoint)continue;if(!(!this.get("lockUniScaling")||s!=="mt"&&s!=="mr"&&s!=="mb"&&s!=="ml"))continue;i=this._getImageLines(this.oCoords[s].corner),r=this._findCrossPoints({x:t,y:n},i);if(r!==0&&r%2===1)return this.__corner=s,s}return!1},_setCornerCoords:function(){var t=this.oCoords,n=e(this.angle),r=e(45-this.angle),i=Math.sqrt(2*Math.pow(this.cornerSize,2))/2,s=i*Math.cos(r),o=i*Math.sin(r),u=Math.sin(n),a=Math.cos(n);t.tl.corner={tl:{x:t.tl.x-o,y:t.tl.y-s},tr:{x:t.tl.x+s,y:t.tl.y-o},bl:{x:t.tl.x-s,y:t.tl.y+o},br:{x:t.tl.x+o,y:t.tl.y+s}},t.tr.corner={tl:{x:t.tr.x-o,y:t.tr.y-s},tr:{x:t.tr.x+s,y:t.tr.y-o},br:{x:t.tr.x+o,y:t.tr.y+s},bl:{x:t.tr.x-s,y:t.tr.y+o}},t.bl.corner={tl:{x:t.bl.x-o,y:t.bl.y-s},bl:{x:t.bl.x-s,y:t.bl.y+o},br:{x:t.bl.x+o,y:t.bl.y+s},tr:{x:t.bl.x+s,y:t.bl.y-o}},t.br.corner={tr:{x:t.br.x+s,y:t.br.y-o},bl:{x:t.br.x-s,y:t.br.y+o},br:{x:t.br.x+o,y:t.br.y+s},tl:{x:t.br.x-o,y:t.br.y-s}},t.ml.corner={tl:{x:t.ml.x-o,y:t.ml.y-s},tr:{x:t.ml.x+s,y:t.ml.y-o},bl:{x:t.ml.x-s,y:t.ml.y+o},br:{x:t.ml.x+o,y:t.ml.y+s}},t.mt.corner={tl:{x:t.mt.x-o,y:t.mt.y-s},tr:{x:t.mt.x+s,y:t.mt.y-o},bl:{x:t.mt.x-s,y:t.mt.y+o},br:{x:t.mt.x+o,y:t.mt.y+s}},t.mr.corner={tl:{x:t.mr.x-o,y:t.mr.y-s},tr:{x:t.mr.x+s,y:t.mr.y-o},bl:{x:t.mr.x-s,y:t.mr.y+o},br:{x:t.mr.x+o,y:t.mr.y+s}},t.mb.corner={tl:{x:t.mb.x-o,y:t.mb.y-s},tr:{x:t.mb.x+s,y:t.mb.y-o},bl:{x:t.mb.x-s,y:t.mb.y+o},br:{x:t.mb.x+o,y:t.mb.y+s}},t.mtr.corner={tl:{x:t.mtr.x-o+u*this.rotatingPointOffset,y:t.mtr.y-s-a*this.rotatingPointOffset},tr:{x:t.mtr.x+s+u*this.rotatingPointOffset,y:t.mtr.y-o-a*this.rotatingPointOffset},bl:{x:t.mtr.x-s+u*this.rotatingPointOffset,y:t.mtr.y+o-a*this.rotatingPointOffset},br:{x:t.mtr.x+o+u*this.rotatingPointOffset,y:t.mtr.y+s-a*this.rotatingPointOffset}}},drawBorders:function(e){if(!this.hasBorders)return this;var t=this.padding,n=t*2,r=this.getViewportTransform();e.save(),e.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1,e.strokeStyle=this.borderColor;var i=1/this._constrainScale(this.scaleX),s=1/this._constrainScale(this.scaleY);e.lineWidth=1/this.borderScaleFactor;var o=this.getWidth(),u=this.getHeight(),a=this.strokeWidth>1?this.strokeWidth:0,f=this.strokeLineCap==="round"||this.strokeLineCap==="square",l=this.type==="line"&&this.width===1,c=this.type==="line"&&this.height===1,h=f&&c||this.type!=="line",p=f&&l||this.type!=="line";l?o=a/i:c&&(u=a/s),h&&(o+=a/i),p&&(u+=a/s);var d=fabric.util.transformPoint(new fabric.Point(o,u),r,!0),v=d.x,m=d.y;this.group&&(v*=this.group.scaleX,m*=this.group.scaleY),e.strokeRect(~~(-(v/2)-t)-.5,~~(-(m/2)-t)-.5,~~(v+n)+1,~~(m+n)+1);if(this.hasRotatingPoint&&this.isControlVisible("mtr")&&!this.get("lockRotation")&&this.hasControls){var g=(this.flipY?m+t*2:-m-t*2)/2;e.beginPath(),e.moveTo(0,g),e.lineTo(0,g+(this.flipY?this.rotatingPointOffset:-this.rotatingPointOffset)),e.closePath(),e.stroke()}return e.restore(),this},drawControls:function(e){if(!this.hasControls)return this;var t=this.cornerSize,n=t/2,r=this.getViewportTransform(),i=this.strokeWidth>1?this.strokeWidth:0,s=this.width,o=this.height,u=this.strokeLineCap==="round"||this.strokeLineCap==="square",a=this.type==="line"&&this.width===1,f=this.type==="line"&&this.height===1,l=u&&f||this.type!=="line",c=u&&a||this.type!=="line";a?s=i:f&&(o=i),l&&(s+=i),c&&(o+=i),s*=this.scaleX,o*=this.scaleY;var h=fabric.util.transformPoint(new fabric.Point(s,o),r,!0),p=h.x,d=h.y,v=-(p/2),m=-(d/2),g=this.padding,y=n,b=n-t,w=this.transparentCorners?"strokeRect":"fillRect";return e.save(),e.lineWidth=1,e.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1,e.strokeStyle=e.fillStyle=this.cornerColor,this._drawControl("tl",e,w,v-y-g,m-y-g),this._drawControl("tr",e,w,v+p-y+g,m-y-g),this._drawControl("bl",e,w,v-y-g,m+d+b+g),this._drawControl("br",e,w,v+p+b+g,m+d+b+g),this.get("lockUniScaling")||(this._drawControl("mt",e,w,v+p/2-y,m-y-g),this._drawControl("mb",e,w,v+p/2-y,m+d+b+g),this._drawControl("mr",e,w,v+p+b+g,m+d/2-y),this._drawControl("ml",e,w,v-y-g,m+d/2-y)),this.hasRotatingPoint&&this._drawControl("mtr",e,w,v+p/2-y,this.flipY?m+d+this.rotatingPointOffset-this.cornerSize/2+g:m-this.rotatingPointOffset-this.cornerSize/2-g),e.restore(),this},_drawControl:function(e,n,r,i,s){var o=this.cornerSize;this.isControlVisible(e)&&(t()||this.transparentCorners||n.clearRect(i,s,o,o),n[r](i,s,o,o))},isControlVisible:function(e){return this._getControlsVisibility()[e]},setControlVisible:function(e,t){return this._getControlsVisibility()[e]=t,this},setControlsVisibility:function(e){e||(e={});for(var t in e)this.setControlVisible(t,e[t]);return this},_getControlsVisibility:function(){return this._controlsVisibility||(this._controlsVisibility={tl:!0,tr:!0,br:!0,bl:!0,ml:!0,mt:!0,mr:!0,mb:!0,mtr:!0}),this._controlsVisibility}})}(),fabric.util.object.extend(fabric.StaticCanvas.prototype,{FX_DURATION:500,fxCenterObjectH:function(e,t){t=t||{};var n=function(){},r=t.onComplete||n,i=t.onChange||n,s=this;return fabric.util.animate({startValue:e.get("left"),endValue:this.getCenter().left,duration:this.FX_DURATION,onChange:function(t){e.set("left",t),s.renderAll(),i()},onComplete:function(){e.setCoords(),r()}}),this},fxCenterObjectV:function(e,t){t=t||{};var n=function(){},r=t.onComplete||n,i=t.onChange||n,s=this;return fabric.util.animate({startValue:e.get("top"),endValue:this.getCenter().top,duration:this.FX_DURATION,onChange:function(t){e.set("top",t),s.renderAll(),i()},onComplete:function(){e.setCoords(),r()}}),this},fxRemove:function(e,t){t=t||{};var n=function(){},r=t.onComplete||n,i=t.onChange||n,s=this;return fabric.util.animate({startValue:e.get("opacity"),endValue:0,duration:this.FX_DURATION,onStart:function(){e.set("active",!1)},onChange:function(t){e.set("opacity",t),s.renderAll(),i()},onComplete:function(){s.remove(e),r()}}),this}}),fabric.util.object.extend(fabric.Object.prototype,{animate:function(){if(arguments[0]&&typeof arguments[0]=="object"){var e=[],t,n;for(t in arguments[0])e.push(t);for(var r=0,i=e.length;r<i;r++)t=e[r],n=r!==i-1,this._animate(t,arguments[0][t],arguments[1],n)}else this._animate.apply(this,arguments);return this},_animate:function(e,t,n,r){var i=this,s;t=t.toString(),n?n=fabric.util.object.clone(n):n={},~e.indexOf(".")&&(s=e.split("."));var o=s?this.get(s[0])[s[1]]:this.get(e);"from"in n||(n.from=o),~t.indexOf("=")?t=o+parseFloat(t.replace("=","")):t=parseFloat(t),fabric.util.animate({startValue:n.from,endValue:t,byValue:n.by,easing:n.easing,duration:n.duration,abort:n.abort&&function(){return n.abort.call(i)},onChange:function(t){s?i[s[0]][s[1]]=t:i.set(e,t);if(r)return;n.onChange&&n.onChange()},onComplete:function(){if(r)return;i.setCoords(),n.onComplete&&n.onComplete()}})}}),function(e){"use strict";function s(e,t){var n=e.origin,r=e.axis1,i=e.axis2,s=e.dimension,o=t.nearest,u=t.center,a=t.farthest;return function(){switch(this.get(n)){case o:return Math.min(this.get(r),this.get(i));case u:return Math.min(this.get(r),this.get(i))+.5*this.get(s);case a:return Math.max(this.get(r),this.get(i))}}}var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r={x1:1,x2:1,y1:1,y2:1},i=t.StaticCanvas.supports("setLineDash");if(t.Line){t.warn("fabric.Line is already defined");return}t.Line=t.util.createClass(t.Object,{type:"line",x1:0,y1:0,x2:0,y2:0,initialize:function(e,t){t=t||{},e||(e=[0,0,0,0]),this.callSuper("initialize",t),this.set("x1",e[0]),this.set("y1",e[1]),this.set("x2",e[2]),this.set("y2",e[3]),this._setWidthHeight(t)},_setWidthHeight:function(e){e||(e={}),this.width=Math.abs(this.x2-this.x1)||1,this.height=Math.abs(this.y2-this.y1)||1,this.left="left"in e?e.left:this._getLeftToOriginX(),this.top="top"in e?e.top:this._getTopToOriginY()},_set:function(e,t){return this[e]=t,typeof r[e]!="undefined"&&this._setWidthHeight(),this},_getLeftToOriginX:s({origin:"originX",axis1:"x1",axis2:"x2",dimension:"width"},{nearest:"left",center:"center",farthest:"right"}),_getTopToOriginY:s({origin:"originY",axis1:"y1",axis2:"y2",dimension:"height"},{nearest:"top",center:"center",farthest:"bottom"}),_render:function(e){e.beginPath();var t=this.group&&this.group.type==="path-group";if(t&&!this.transformMatrix){var n=this.getCenterPoint();e.translate(-this.group.width/2+n.x,-this.group.height/2+n.y)}if(!this.strokeDashArray||this.strokeDashArray&&i){var r=this.x1<=this.x2?-1:1,s=this.y1<=this.y2?-1:1;e.moveTo(this.width===1?0:r*this.width/2,this.height===1?0:s*this.height/2),e.lineTo(this.width===1?0:r*-1*this.width/2,this.height===1?0:s*-1*this.height/2)}e.lineWidth=this.strokeWidth;var o=e.strokeStyle;e.strokeStyle=this.stroke||e.fillStyle,this.stroke&&this._renderStroke(e),e.strokeStyle=o},_renderDashedStroke:function(e){var n=this.x1<=this.x2?-1:1,r=this.y1<=this.y2?-1:1,i=this.width===1?0:n*this.width/2,s=this.height===1?0:r*this.height/2;e.beginPath(),t.util.drawDashedLine(e,i,s,-i,-s,this.strokeDashArray),e.closePath()},toObject:function(e){return n(this.callSuper("toObject",e),{x1:this.get("x1"),y1:this.get("y1"),x2:this.get("x2"),y2:this.get("y2")})},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<line ",'x1="',this.get("x1"),'" y1="',this.get("y1"),'" x2="',this.get("x2"),'" y2="',this.get("y2"),'" style="',this.getSvgStyles(),'"/>'),e?e(t.join("")):t.join("")},complexity:function(){return 1}}),t.Line.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("x1 y1 x2 y2".split(" ")),t.Line.fromElement=function(e,r){var i=t.parseAttributes(e,t.Line.ATTRIBUTE_NAMES),s=[i.x1||0,i.y1||0,i.x2||0,i.y2||0];return new t.Line(s,n(i,r))},t.Line.fromObject=function(e){var n=[e.x1,e.y1,e.x2,e.y2];return new t.Line(n,e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function i(e){return"radius"in e&&e.radius>0}var t=e.fabric||(e.fabric={}),n=Math.PI*2,r=t.util.object.extend;if(t.Circle){t.warn("fabric.Circle is already defined.");return}t.Circle=t.util.createClass(t.Object,{type:"circle",radius:0,initialize:function(e){e=e||{},this.set("radius",e.radius||0),this.callSuper("initialize",e)},_set:function(e,t){return this.callSuper("_set",e,t),e==="radius"&&this.setRadius(t),this},toObject:function(e){return r(this.callSuper("toObject",e),{radius:this.get("radius")})},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<circle ",'cx="0" cy="0" ','r="',this.radius,'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},_render:function(e,t){e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,e.arc(t?this.left:0,t?this.top:0,this.radius,0,n,!1),this._renderFill(e),this.stroke&&this._renderStroke(e)},getRadiusX:function(){return this.get("radius")*this.get("scaleX")},getRadiusY:function(){return this.get("radius")*this.get("scaleY")},setRadius:function(e){this.radius=e,this.set("width",e*2).set("height",e*2)},complexity:function(){return 1}}),t.Circle.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("cx cy r".split(" ")),t.Circle.fromElement=function(e,n){n||(n={});var s=t.parseAttributes(e,t.Circle.ATTRIBUTE_NAMES);if(!i(s))throw new Error("value of `r` attribute is required and can not be negative");"left"in s||(s.left=0),"top"in s||(s.top=0),"transformMatrix"in s||(s.left-=n.width/2,s.top-=n.height/2);var o=new t.Circle(r(s,n));return o.cx=parseFloat(e.getAttribute("cx"))||0,o.cy=parseFloat(e.getAttribute("cy"))||0,o},t.Circle.fromObject=function(e){return new t.Circle(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});if(t.Triangle){t.warn("fabric.Triangle is already defined");return}t.Triangle=t.util.createClass(t.Object,{type:"triangle",initialize:function(e){e=e||{},this.callSuper("initialize",e),this.set("width",e.width||100).set("height",e.height||100)},_render:function(e){var t=this.width/2,n=this.height/2;e.beginPath(),e.moveTo(-t,n),e.lineTo(0,-n),e.lineTo(t,n),e.closePath(),this._renderFill(e),this._renderStroke(e)},_renderDashedStroke:function(e){var n=this.width/2,r=this.height/2;e.beginPath(),t.util.drawDashedLine(e,-n,r,0,-r,this.strokeDashArray),t.util.drawDashedLine(e,0,-r,n,r,this.strokeDashArray),t.util.drawDashedLine(e,n,r,-n,r,this.strokeDashArray),e.closePath()},toSVG:function(e){var t=this._createBaseSVGMarkup(),n=this.width/2,r=this.height/2,i=[-n+" "+r,"0 "+ -r,n+" "+r].join(",");return t.push("<polygon ",'points="',i,'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},complexity:function(){return 1}}),t.Triangle
-.fromObject=function(e){return new t.Triangle(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=Math.PI*2,r=t.util.object.extend;if(t.Ellipse){t.warn("fabric.Ellipse is already defined.");return}t.Ellipse=t.util.createClass(t.Object,{type:"ellipse",rx:0,ry:0,initialize:function(e){e=e||{},this.callSuper("initialize",e),this.set("rx",e.rx||0),this.set("ry",e.ry||0),this.set("width",this.get("rx")*2),this.set("height",this.get("ry")*2)},toObject:function(e){return r(this.callSuper("toObject",e),{rx:this.get("rx"),ry:this.get("ry")})},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<ellipse ",'rx="',this.get("rx"),'" ry="',this.get("ry"),'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},render:function(e,t){if(this.rx===0||this.ry===0)return;return this.callSuper("render",e,t)},_render:function(e,t){e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,e.save(),e.transform(1,0,0,this.ry/this.rx,0,0),e.arc(t?this.left:0,t?this.top*this.rx/this.ry:0,this.rx,0,n,!1),e.restore(),this._renderFill(e),this._renderStroke(e)},complexity:function(){return 1}}),t.Ellipse.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("cx cy rx ry".split(" ")),t.Ellipse.fromElement=function(e,n){n||(n={});var i=t.parseAttributes(e,t.Ellipse.ATTRIBUTE_NAMES);"left"in i||(i.left=0),"top"in i||(i.top=0),"transformMatrix"in i||(i.left-=n.width/2,i.top-=n.height/2);var s=new t.Ellipse(r(i,n));return s.cx=parseFloat(e.getAttribute("cx"))||0,s.cy=parseFloat(e.getAttribute("cy"))||0,s},t.Ellipse.fromObject=function(e){return new t.Ellipse(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function i(e){return e.left=e.left||0,e.top=e.top||0,e}var t=e.fabric||(e.fabric={}),n=t.util.object.extend;if(t.Rect){console.warn("fabric.Rect is already defined");return}var r=t.Object.prototype.stateProperties.concat();r.push("rx","ry","x","y"),t.Rect=t.util.createClass(t.Object,{stateProperties:r,type:"rect",rx:0,ry:0,x:0,y:0,strokeDashArray:null,initialize:function(e){e=e||{},this.callSuper("initialize",e),this._initRxRy(),this.x=e.x||0,this.y=e.y||0},_initRxRy:function(){this.rx&&!this.ry?this.ry=this.rx:this.ry&&!this.rx&&(this.rx=this.ry)},_render:function(e){if(this.width===1&&this.height===1){e.fillRect(0,0,1,1);return}var t=this.rx?Math.min(this.rx,this.width/2):0,n=this.ry?Math.min(this.ry,this.height/2):0,r=this.width,i=this.height,s=-r/2,o=-i/2,u=this.group&&this.group.type==="path-group",a=t!==0||n!==0,f=.4477152502;e.beginPath(),e.globalAlpha=u?e.globalAlpha*this.opacity:this.opacity,this.transformMatrix&&u&&e.translate(this.width/2+this.x,this.height/2+this.y),!this.transformMatrix&&u&&e.translate(-this.group.width/2+this.width/2+this.x,-this.group.height/2+this.height/2+this.y),e.moveTo(s+t,o),e.lineTo(s+r-t,o),a&&e.bezierCurveTo(s+r-f*t,o,s+r,o+f*n,s+r,o+n),e.lineTo(s+r,o+i-n),a&&e.bezierCurveTo(s+r,o+i-f*n,s+r-f*t,o+i,s+r-t,o+i),e.lineTo(s+t,o+i),a&&e.bezierCurveTo(s+f*t,o+i,s,o+i-f*n,s,o+i-n),e.lineTo(s,o+n),a&&e.bezierCurveTo(s,o+f*n,s+f*t,o,s+t,o),e.closePath(),this._renderFill(e),this._renderStroke(e)},_renderDashedStroke:function(e){var n=-this.width/2,r=-this.height/2,i=this.width,s=this.height;e.beginPath(),t.util.drawDashedLine(e,n,r,n+i,r,this.strokeDashArray),t.util.drawDashedLine(e,n+i,r,n+i,r+s,this.strokeDashArray),t.util.drawDashedLine(e,n+i,r+s,n,r+s,this.strokeDashArray),t.util.drawDashedLine(e,n,r+s,n,r,this.strokeDashArray),e.closePath()},_normalizeLeftTopProperties:function(e){return"left"in e&&this.set("left",e.left+this.getWidth()/2),this.set("x",e.left||0),"top"in e&&this.set("top",e.top+this.getHeight()/2),this.set("y",e.top||0),this},toObject:function(e){var t=n(this.callSuper("toObject",e),{rx:this.get("rx")||0,ry:this.get("ry")||0,x:this.get("x"),y:this.get("y")});return this.includeDefaultValues||this._removeDefaultValues(t),t},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<rect ",'x="',-1*this.width/2,'" y="',-1*this.height/2,'" rx="',this.get("rx"),'" ry="',this.get("ry"),'" width="',this.width,'" height="',this.height,'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},complexity:function(){return 1}}),t.Rect.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("x y rx ry width height".split(" ")),t.Rect.fromElement=function(e,r){if(!e)return null;var s=t.parseAttributes(e,t.Rect.ATTRIBUTE_NAMES);s=i(s);var o=new t.Rect(n(r?t.util.object.clone(r):{},s));return o._normalizeLeftTopProperties(s),o},t.Rect.fromObject=function(e){return new t.Rect(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.toFixed;if(t.Polyline){t.warn("fabric.Polyline is already defined");return}t.Polyline=t.util.createClass(t.Object,{type:"polyline",points:null,initialize:function(e,t,n){t=t||{},this.set("points",e),this.callSuper("initialize",t),this._calcDimensions(n)},_calcDimensions:function(e){return t.Polygon.prototype._calcDimensions.call(this,e)},toObject:function(e){return t.Polygon.prototype.toObject.call(this,e)},toSVG:function(e){var t=[],r=this._createBaseSVGMarkup();for(var i=0,s=this.points.length;i<s;i++)t.push(n(this.points[i].x,2),",",n(this.points[i].y,2)," ");return r.push("<polyline ",'points="',t.join(""),'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(r.join("")):r.join("")},_render:function(e){var t;e.beginPath(),e.moveTo(this.points[0].x,this.points[0].y);for(var n=0,r=this.points.length;n<r;n++)t=this.points[n],e.lineTo(t.x,t.y);this._renderFill(e),this._renderStroke(e)},_renderDashedStroke:function(e){var n,r;e.beginPath();for(var i=0,s=this.points.length;i<s;i++)n=this.points[i],r=this.points[i+1]||n,t.util.drawDashedLine(e,n.x,n.y,r.x,r.y,this.strokeDashArray)},complexity:function(){return this.get("points").length}}),t.Polyline.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat(),t.Polyline.fromElement=function(e,n){if(!e)return null;n||(n={});var r=t.parsePointsAttribute(e.getAttribute("points")),i=t.parseAttributes(e,t.Polyline.ATTRIBUTE_NAMES);return t.util.normalizePoints(r,n),new t.Polyline(r,t.util.object.extend(i,n),!0)},t.Polyline.fromObject=function(e){var n=e.points;return new t.Polyline(n,e,!0)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.array.min,i=t.util.array.max,s=t.util.toFixed;if(t.Polygon){t.warn("fabric.Polygon is already defined");return}t.Polygon=t.util.createClass(t.Object,{type:"polygon",points:null,initialize:function(e,t,n){t=t||{},this.points=e,this.callSuper("initialize",t),this._calcDimensions(n)},_calcDimensions:function(e){var t=this.points,n=r(t,"x"),s=r(t,"y"),o=i(t,"x"),u=i(t,"y");this.width=o-n||1,this.height=u-s||1,this.minX=n,this.minY=s;if(e)return;var a=this.width/2+this.minX,f=this.height/2+this.minY;this.points.forEach(function(e){e.x-=a,e.y-=f},this)},toObject:function(e){return n(this.callSuper("toObject",e),{points:this.points.concat()})},toSVG:function(e){var t=[],n=this._createBaseSVGMarkup();for(var r=0,i=this.points.length;r<i;r++)t.push(s(this.points[r].x,2),",",s(this.points[r].y,2)," ");return n.push("<polygon ",'points="',t.join(""),'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(n.join("")):n.join("")},_render:function(e){var t;e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,e.moveTo(this.points[0].x,this.points[0].y);for(var n=0,r=this.points.length;n<r;n++)t=this.points[n],e.lineTo(t.x,t.y);this._renderFill(e);if(this.stroke||this.strokeDashArray)e.closePath(),this._renderStroke(e)},_renderDashedStroke:function(e){var n,r;e.beginPath();for(var i=0,s=this.points.length;i<s;i++)n=this.points[i],r=this.points[i+1]||this.points[0],t.util.drawDashedLine(e,n.x,n.y,r.x,r.y,this.strokeDashArray);e.closePath()},complexity:function(){return this.points.length}}),t.Polygon.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat(),t.Polygon.fromElement=function(e,r){if(!e)return null;r||(r={});var i=t.parsePointsAttribute(e.getAttribute("points")),s=t.parseAttributes(e,t.Polygon.ATTRIBUTE_NAMES);return t.util.normalizePoints(i,r),new t.Polygon(i,n(s,r),!0)},t.Polygon.fromObject=function(e){return new t.Polygon(e.points,e,!0)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function f(e){return e[0]==="H"?e[1]:e[e.length-2]}function l(e){return e[0]==="V"?e[1]:e[e.length-1]}var t=e.fabric||(e.fabric={}),n=t.util.array.min,r=t.util.array.max,i=t.util.object.extend,s=Object.prototype.toString,o=t.util.drawArc,u={m:2,l:2,h:1,v:1,c:6,s:4,q:4,t:2,a:7},a={m:"l",M:"L"};if(t.Path){t.warn("fabric.Path is already defined");return}t.Path=t.util.createClass(t.Object,{type:"path",path:null,initialize:function(e,t){t=t||{},this.setOptions(t);if(!e)throw new Error("`path` argument is required");var n=s.call(e)==="[object Array]";this.path=n?e:e.match&&e.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi);if(!this.path)return;n||(this.path=this._parsePath()),this._initializePath(t),t.sourcePath&&this.setSourcePath(t.sourcePath)},_initializePath:function(e){var t="width"in e&&e.width!=null,n="height"in e&&e.width!=null,r="left"in e,s="top"in e,o=r?this.left:0,u=s?this.top:0;!t||!n?(i(this,this._parseDimensions()),t&&(this.width=e.width),n&&(this.height=e.height)):(s||(this.top=this.height/2),r||(this.left=this.width/2)),this.pathOffset=this.pathOffset||this._calculatePathOffset(o,u)},_calculatePathOffset:function(e,t){return{x:this.left-e-this.width/2,y:this.top-t-this.height/2}},_render:function(e){var t,n=null,r=0,i=0,s=0,u=0,a=0,f=0,l,c,h,p,d=-(this.width/2+this.pathOffset.x),v=-(this.height/2+this.pathOffset.y);for(var m=0,g=this.path.length;m<g;++m){t=this.path[m];switch(t[0]){case"l":s+=t[1],u+=t[2],e.lineTo(s+d,u+v);break;case"L":s=t[1],u=t[2],e.lineTo(s+d,u+v);break;case"h":s+=t[1],e.lineTo(s+d,u+v);break;case"H":s=t[1],e.lineTo(s+d,u+v);break;case"v":u+=t[1],e.lineTo(s+d,u+v);break;case"V":u=t[1],e.lineTo(s+d,u+v);break;case"m":s+=t[1],u+=t[2],r=s,i=u,e.moveTo(s+d,u+v);break;case"M":s=t[1],u=t[2],r=s,i=u,e.moveTo(s+d,u+v);break;case"c":l=s+t[5],c=u+t[6],a=s+t[3],f=u+t[4],e.bezierCurveTo(s+t[1]+d,u+t[2]+v,a+d,f+v,l+d,c+v),s=l,u=c;break;case"C":s=t[5],u=t[6],a=t[3],f=t[4],e.bezierCurveTo(t[1]+d,t[2]+v,a+d,f+v,s+d,u+v);break;case"s":l=s+t[3],c=u+t[4],a=a?2*s-a:s,f=f?2*u-f:u,e.bezierCurveTo(a+d,f+v,s+t[1]+d,u+t[2]+v,l+d,c+v),a=s+t[1],f=u+t[2],s=l,u=c;break;case"S":l=t[3],c=t[4],a=2*s-a,f=2*u-f,e.bezierCurveTo(a+d,f+v,t[1]+d,t[2]+v,l+d,c+v),s=l,u=c,a=t[1],f=t[2];break;case"q":l=s+t[3],c=u+t[4],a=s+t[1],f=u+t[2],e.quadraticCurveTo(a+d,f+v,l+d,c+v),s=l,u=c;break;case"Q":l=t[3],c=t[4],e.quadraticCurveTo(t[1]+d,t[2]+v,l+d,c+v),s=l,u=c,a=t[1],f=t[2];break;case"t":l=s+t[1],c=u+t[2],n[0].match(/[QqTt]/)===null?(a=s,f=u):n[0]==="t"?(a=2*s-h,f=2*u-p):n[0]==="q"&&(a=2*s-a,f=2*u-f),h=a,p=f,e.quadraticCurveTo(a+d,f+v,l+d,c+v),s=l,u=c,a=s+t[1],f=u+t[2];break;case"T":l=t[1],c=t[2],a=2*s-a,f=2*u-f,e.quadraticCurveTo(a+d,f+v,l+d,c+v),s=l,u=c;break;case"a":o(e,s+d,u+v,[t[1],t[2],t[3],t[4],t[5],t[6]+s+d,t[7]+u+v]),s+=t[6],u+=t[7];break;case"A":o(e,s+d,u+v,[t[1],t[2],t[3],t[4],t[5],t[6]+d,t[7]+v]),s=t[6],u=t[7];break;case"z":case"Z":s=r,u=i,e.closePath()}n=t}},render:function(e,n){if(!this.visible)return;e.save();var r=this.transformMatrix;r&&e.transform(r[0],r[1],r[2],r[3],r[4],r[5]),n||this.transform(e),this._setStrokeStyles(e),this._setFillStyles(e),this._setShadow(e),this.clipTo&&t.util.clipContext(this,e),e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,this._render(e),this._renderFill(e),this._renderStroke(e),this.clipTo&&e.restore(),this._removeShadow(e),e.restore()},toString:function(){return"#<fabric.Path ("+this.complexity()+'): { "top": '+this.top+', "left": '+this.left+" }>"},toObject:function(e){var t=i(this.callSuper("toObject",e),{path:this.path.map(function(e){return e.slice()}),pathOffset:this.pathOffset});return this.sourcePath&&(t.sourcePath=this.sourcePath),this.transformMatrix&&(t.transformMatrix=this.transformMatrix),t},toDatalessObject:function(e){var t=this.toObject(e);return this.sourcePath&&(t.path=this.sourcePath),delete t.sourcePath,t},toSVG:function(e){var t=[],n=this._createBaseSVGMarkup();for(var r=0,i=this.path.length;r<i;r++)t.push(this.path[r].join(" "));var s=t.join(" ");return n.push('<g transform="',this.group?"":this.getSvgTransform(),'">',"<path ",'d="',s,'" style="',this.getSvgStyles(),'" transform="translate(',-this.width/2," ",-this.height/2,")",'" stroke-linecap="round" ',"/>","</g>"),e?e(n.join("")):n.join("")},complexity:function(){return this.path.length},_parsePath:function(){var e=[],t=[],n,r,i=/([-+]?((\d+\.\d+)|((\d+)|(\.\d+)))(?:e[-+]?\d+)?)/ig,s,o;for(var f=0,l,c=this.path.length;f<c;f++){n=this.path[f],o=n.slice(1).trim(),t.length=0;while(s=i.exec(o))t.push(s[0]);l=[n.charAt(0)];for(var h=0,p=t.length;h<p;h++)r=parseFloat(t[h]),isNaN(r)||l.push(r);var d=l[0],v=u[d.toLowerCase()],m=a[d]||d;if(l.length-1>v)for(var g=1,y=l.length;g<y;g+=v)e.push([d].concat(l.slice(g,g+v))),d=m;else e.push(l)}return e},_parseDimensions:function(){var e=[],t=[],i={};this.path.forEach(function(n,r){this._getCoordsFromCommand(n,r,e,t,i)},this);var s=n(e),o=n(t),u=r(e),a=r(t),f=u-s,l=a-o,c={left:this.left+(s+f/2),top:this.top+(o+l/2),width:f,height:l};return c},_getCoordsFromCommand:function(e,t,n,r,i){var s=!1;e[0]!=="H"&&(i.x=t===0?f(e):f(this.path[t-1])),e[0]!=="V"&&(i.y=t===0?l(e):l(this.path[t-1])),e[0]===e[0].toLowerCase()&&(s=!0);var o=this._getXY(e,s,i),u;u=parseInt(o.x,10),isNaN(u)||n.push(u),u=parseInt(o.y,10),isNaN(u)||r.push(u)},_getXY:function(e,t,n){var r=t?n.x+f(e):e[0]==="V"?n.x:f(e),i=t?n.y+l(e):e[0]==="H"?n.y:l(e);return{x:r,y:i}}}),t.Path.fromObject=function(e,n){typeof e.path=="string"?t.loadSVGFromURL(e.path,function(r){var i=r[0],s=e.path;delete e.path,t.util.object.extend(i,e),i.setSourcePath(s),n(i)}):n(new t.Path(e.path,e))},t.Path.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat(["d"]),t.Path.fromElement=function(e,n,r){var s=t.parseAttributes(e,t.Path.ATTRIBUTE_NAMES);n&&n(new t.Path(s.d,i(s,r)))},t.Path.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.array.invoke,i=t.Object.prototype.toObject;if(t.PathGroup){t.warn("fabric.PathGroup is already defined");return}t.PathGroup=t.util.createClass(t.Path,{type:"path-group",fill:"",initialize:function(e,t){t=t||{},this.paths=e||[];for(var n=this.paths.length;n--;)this.paths[n].group=this;this.setOptions(t),t.widthAttr&&(this.scaleX=t.widthAttr/t.width),t.heightAttr&&(this.scaleY=t.heightAttr/t.height),this.setCoords(),t.sourcePath&&this.setSourcePath(t.sourcePath)},render:function(e){if(!this.visible)return;e.save();var n=this.transformMatrix;n&&e.transform(n[0],n[1],n[2],n[3],n[4],n[5]),this.transform(e),this._setShadow(e),this.clipTo&&t.util.clipContext(this,e);for(var r=0,i=this.paths.length;r<i;++r)this.paths[r].render(e,!0);this.clipTo&&e.restore(),this._removeShadow(e),e.restore()},_set:function(e,t){if(e==="fill"&&t&&this.isSameColor()){var n=this.paths.length;while(n--)this.paths[n]._set(e,t)}return this.callSuper("_set",e,t)},toObject:function(e){var t=n(i.call(this,e),{paths:r(this.getObjects(),"toObject",e)});return this.sourcePath&&(t.sourcePath=this.sourcePath),t},toDatalessObject:function(e){var t=this.toObject(e);return this.sourcePath&&(t.paths=this.sourcePath),t},toSVG:function(e){var t=this.getObjects(),n=["<g ",'style="',this.getSvgStyles(),'" ','transform="',this.getSvgTransform(),'" ',">"];for(var r=0,i=t.length;r<i;r++)n.push(t[r].toSVG(e));return n.push("</g>"),e?e(n.join("")):n.join("")},toString:function(){return"#<fabric.PathGroup ("+this.complexity()+"): { top: "+this.top+", left: "+this.left+" }>"},isSameColor:function(){var e=(this.getObjects()[0].get("fill")||"").toLowerCase();return this.getObjects().every(function(t){return(t.get("fill")||"").toLowerCase()===e})},complexity:function(){return this.paths.reduce(function(e,t){return e+(t&&t.complexity?t.complexity():0)},0)},getObjects:function(){return this.paths}}),t.PathGroup.fromObject=function(e,n){typeof e.paths=="string"?t.loadSVGFromURL(e.paths,function(r){var i=e.paths;delete e.paths;var s=t.util.groupSVGElements(r,e,i);n(s)}):t.util.enlivenObjects(e.paths,function(r){delete e.paths,n(new t.PathGroup(r,e))})},t.PathGroup.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.array.min,i=t.util.array.max,s=t.util.array.invoke;if(t.Group)return;var o={lockMovementX:!0,lockMovementY:!0,lockRotation:!0,lockScalingX:!0,lockScalingY:!0,lockUniScaling:!0};t.Group=t.util.createClass(t.Object,t.Collection,{type:"group",initialize:function(e,t){t=t||{},this._objects=e||[];for(var r=this._objects.length;r--;)this._objects[r].group=this;this.originalState={},this.callSuper("initialize"),this._calcBounds(),this._updateObjectsCoords(),t&&n(this,t),this._setOpacityIfSame(),this.setCoords(),this.saveCoords()},_updateObjectsCoords:function(){this.forEachObject(this._updateObjectCoords,this)},_updateObjectCoords:function(e){var t=e.getLeft(),n=e.getTop();e.set({originalLeft:t,originalTop:n,left:t-this.left,top:n-this.top}),e.setCoords(),e.__origHasControls=e.hasControls,e.hasControls=!1},toString:function(){return"#<fabric.Group: ("+this.complexity()+")>"},addWithUpdate:function(e){return this._restoreObjectsState(),e&&(this._objects.push(e),e.group=this),this.forEachObject(this._setObjectActive,this),this._calcBounds(),this._updateObjectsCoords(),this},_setObjectActive:function(e){e.set("active",!0),e.group=this},removeWithUpdate:function(e){return this._moveFlippedObject(e),this._restoreObjectsState(),this.forEachObject(this._setObjectActive,this),this.remove(e),this._calcBounds(),this._updateObjectsCoords(),this},_onObjectAdded:function(e){e.group=this},_onObjectRemoved:function(e){delete e.group,e.set("active",!1)},delegatedProperties:{fill:!0,opacity:!0,fontFamily:!0,fontWeight:!0,fontSize:!0,fontStyle:!0,lineHeight:!0,textDecoration:!0,textAlign:!0,backgroundColor:!0},_set:function(e,t){if(e in this.delegatedProperties){var n=this._objects.length;this[e]=t;while(n--)this._objects[n].set(e,t)}else this[e]=t},toObject:function(e){return n(this.callSuper("toObject",e),{objects:s(this._objects,"toObject",e)})},render:function(e){if(!this.visible)return;e.save(),this.clipTo&&t.util.clipContext(this,e);for(var n=0,r=this._objects.length;n<r;n++)this._renderObject(this._objects[n],e);this.clipTo&&e.restore(),e.restore()},_renderControls:function(e,t){this.callSuper("_renderControls",e,t);for(var n=0,r=this._objects.length;n<r;n++)this._objects[n]._renderControls(e)},_renderObject:function(e,t){var n=e.hasRotatingPoint;if(!e.visible)return;e.hasRotatingPoint=!1,e.render(t),e.hasRotatingPoint=n},_restoreObjectsState:function(){return this._objects.forEach(this._restoreObjectState,this),this},_moveFlippedObject:function(e){var t=e.get("originX"),n=e.get("originY"),r=e.getCenterPoint();e.set({originX:"center",originY:"center",left:r.x,top:r.y}),this._toggleFlipping(e);var i=e.getPointByOrigin(t,n);return e.set({originX:t,originY:n,left:i.x,top:i.y}),this},_toggleFlipping:function(e){this.flipX&&(e.toggle("flipX"),e.set("left",-e.get("left")),e.setAngle(-e.getAngle())),this.flipY&&(e.toggle("flipY"),e.set("top",-e.get("top")),e.setAngle(-e.getAngle()))},_restoreObjectState:function(e){return this._setObjectPosition(e),e.setCoords(),e.hasControls=e.__origHasControls,delete e.__origHasControls,e.set("active",!1),e.setCoords(),delete e.group,this},_setObjectPosition:function(e){var t=this.getLeft(),n=this.getTop(),r=this._getRotatedLeftTop(e);e.set({angle:e.getAngle()+this.getAngle(),left:t+r.left,top:n+r.top,scaleX:e.get("scaleX")*this.get("scaleX"),scaleY:e.get("scaleY")*this.get("scaleY")})},_getRotatedLeftTop:function(e){var t=this.getAngle()*(Math.PI/180);return{left:-Math.sin(t)*e.getTop()*this.get("scaleY")+Math.cos(t)*e.getLeft()*this.get("scaleX"),top:Math.cos(t)*e.getTop()*this.get("scaleY")+Math.sin(t)*e.getLeft()*this.get("scaleX")}},destroy:function(){return this._objects.forEach(this._moveFlippedObject,this),this._restoreObjectsState()},saveCoords:function(){return this._originalLeft=this.get("left"),this._originalTop=this.get("top"),this},hasMoved:function(){return this._originalLeft!==this.get("left")||this._originalTop!==this.get("top")},setObjectsCoords:function(){return this.forEachObject(function(e){e.setCoords()}),this},_setOpacityIfSame:function(){var e=this.getObjects(),t=e[0]?e[0].get("opacity"):1,n=e.every(function(e){return e.get("opacity")===t});n&&(this.opacity=t)},_calcBounds:function(e){var t=[],n=[],r;for(var i=0,s=this._objects.length;i<s;++i){r=this._objects[i],r.setCoords();for(var o in r.oCoords)t.push(r.oCoords[o].x),n.push(r.oCoords[o].y)}this.set(this._getBounds(t,n,e))},_getBounds:function(e,n,s){var o=t.util.invertTransform(this.getViewportTransform()),u=t.util.transformPoint(new t.Point(r(e),r(n)),o),a=t.util.transformPoint(new t.Point(i(e),i(n)),o),f={width:a.x-u.x||0,height:a.y-u.y||0};return s||(f.left=(u.x+a.x)/2||0,f.top=(u.y+a.y)/2||0),f},toSVG:function(e){var t=["<g ",'transform="',this.getSvgTransform(),'">'];for(var n=0,r=this._objects.length;n<r;n++)t.push(this._objects[n].toSVG(e));return t.push("</g>"),e?e(t.join("")):t.join("")},get:function(e){if(e in o){if(this[e])return this[e];for(var t=0,n=this._objects.length;t<n;t++)if(this._objects[t][e])return!0;return!1}return e in this.delegatedProperties?this._objects[0]&&this._objects[0].get(e):this[e]}}),t.Group.fromObject=function(e,n){t.util.enlivenObjects(e.objects,function(r){delete e.objects,n&&n(new t.Group(r,e))})},t.Group.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=fabric.util.object.extend;e.fabric||(e.fabric={});if(e.fabric.Image){fabric.warn("fabric.Image is already defined.");return}fabric.Image=fabric.util.createClass(fabric.Object,{type:"image",crossOrigin:"",initialize:function(e,t){t||(t={}),this.filters=[],this.callSuper("initialize",t),this._initElement(e,t),this._initConfig(t),t.filters&&(this.filters=t.filters,this.applyFilters())},getElement:function(){return this._element},setElement:function(e,t){return this._element=e,this._originalElement=e,this._initConfig(),this.filters.length!==0&&this.applyFilters(t),this},setCrossOrigin:function(e){return this.crossOrigin=e,this._element.crossOrigin=e,this},getOriginalSize:function(){var e=this.getElement();return{width:e.width,height:e.height}},render:function(e,t){if(!this.visible)return;e.save();var n=this.transformMatrix,r=this.group&&this.group.type==="path-group";r&&e.translate(-this.group.width/2,-this.group.height/2),n&&e.transform(n[0],n[1],n[2],n[3],n[4],n[5]),t||this.transform(e),r&&e.translate(this.width/2,this.height/2),this._setShadow(e),this.clipTo&&fabric.util.clipContext(this,e),this._render(e),this.shadow&&!this.shadow.affectStroke&&this._removeShadow(e),this._renderStroke(e),this.clipTo&&e.restore(),e.restore()},_stroke:function(e){e.save(),this._setStrokeStyles(e),e.beginPath(),e.strokeRect(-this.width/2,-this.height/2,this.width,this.height),e.closePath(),e.restore()},_renderDashedStroke:function(e){var t=-this.width/2,n=-this.height/2,r=this.width,i=this.height;e.save(),this._setStrokeStyles(e),e.beginPath(),fabric.util.drawDashedLine(e,t,n,t+r,n,this.strokeDashArray),fabric.util.drawDashedLine(e,t+r,n,t+r,n+i,this.strokeDashArray),fabric.util.drawDashedLine(e,t+r,n+i,t,n+i,this.strokeDashArray),fabric.util.drawDashedLine(e,t,n+i,t,n,this.strokeDashArray),e.closePath(),e.restore()},toObject:function(e){return t(this.callSuper("toObject",e),{src:this._originalElement.src||this._originalElement._src,filters:this.filters.map(function(e){return e&&e.toObject()}),crossOrigin:this.crossOrigin})},toSVG:function(e){var t=[];t.push('<g transform="',this.getSvgTransform(),'">','<image xlink:href="',this.getSvgSrc(),'" style="',this.getSvgStyles(),'" transform="translate('+ -this.width/2+" "+ -this.height/2+")",'" width="',this.width,'" height="',this.height,'" preserveAspectRatio="none"',"></image>");if(this.stroke||this.strokeDashArray){var n=this.fill;this.fill=null,t.push("<rect ",'x="',-1*this.width/2,'" y="',-1*this.height/2,'" width="',this.width,'" height="',this.height,'" style="',this.getSvgStyles(),'"/>'),this.fill=n}return t.push("</g>"),e?e(t.join("")):t.join("")},getSrc:function(){if(this.getElement())return this.getElement().src||this.getElement()._src},toString:function(){return'#<fabric.Image: { src: "'+this.getSrc()+'" }>'},clone:function(e,t){this.constructor.fromObject(this.toObject(t),e)},applyFilters:function(e){if(!this._originalElement)return;if(this.filters.length===0){this._element=this._originalElement,e&&e();return}var t=this._originalElement,n=fabric.util.createCanvasElement(),r=fabric.util.createImage(),i=this;return n.width=t.width,n.height=t.height,n.getContext("2d").drawImage(t,0,0,t.width,t.height),this.filters.forEach(function(e){e&&e.applyTo(n)}),r.width=t.width,r.height=t.height,fabric.isLikelyNode?(r.src=n.toBuffer(undefined,fabric.Image.pngCompression),i._element=r,e&&e()):(r.onload=function(){i._element=r,e&&e(),r.onload=n=t=null},r.src=n.toDataURL("image/png")),this},_render:function(e){this._element&&e.drawImage(this._element,-this.width/2,-this.height/2,this.width,this.height)},_resetWidthHeight:function(){var e=this.getElement();this.set("width",e.width),this.set("height",e.height)},_initElement:function(e){this.setElement(fabric.util.getById(e)),fabric.util.addClass(this.getElement(),fabric.Image.CSS_CANVAS)},_initConfig:function(e){e||(e={}),this.setOptions(e),this._setWidthHeight(e),this._element&&this.crossOrigin&&(this._element.crossOrigin=this.crossOrigin)},_initFilters:function(e,t){e.filters&&e.filters.length?fabric.util.enlivenObjects(e.filters,function(e){t&&t(e)},"fabric.Image.filters"):t&&t()},_setWidthHeight:function(e){this.width="width"in e?e.width:this.getElement()?this.getElement().width||0:0,this.height="height"in e?e.height:this.getElement()?this.getElement().height||0:0},complexity:function(){return 1}}),fabric.Image.CSS_CANVAS="canvas-img",fabric.Image.prototype.getSvgSrc=fabric.Image.prototype.getSrc,fabric.Image.fromObject=function(e,t){fabric.util.loadImage(e.src,function(n){fabric.Image.prototype._initFilters.call(e,e,function(r){e.filters=r||[];var i=new fabric.Image(n,e);t&&t(i)})},null,e.crossOrigin)},fabric.Image.fromURL=function(e,t,n){fabric.util.loadImage(e,function(e){t(new fabric.Image(e,n))},null,n&&n.crossOrigin)},fabric.Image.ATTRIBUTE_NAMES=fabric.SHARED_ATTRIBUTES.concat("x y width height xlink:href".split(" ")),fabric.Image.fromElement=function(e,n,r){var i=fabric.parseAttributes(e,fabric.Image.ATTRIBUTE_NAMES);fabric.Image.fromURL(i["xlink:href"],n,t(r?fabric.util.object.clone(r):{},i))},fabric.Image.async=!0,fabric.Image.pngCompression=1}(typeof exports!="undefined"?exports:this),fabric.util.object.extend(fabric.Object.prototype,{_getAngleValueForStraighten:function(){var e=this.getAngle()%360;return e>0?Math.round((e-1)/90)*90:Math.round(e/90)*90},straighten:function(){return this.setAngle(this._getAngleValueForStraighten()),this},fxStraighten:function(e){e=e||{};var t=function(){},n=e.onComplete||t,r=e.onChange||t,i=this;return fabric.util.animate({startValue:this.get("angle"),endValue:this._getAngleValueForStraighten(),duration:this.FX_DURATION,onChange:function(e){i.setAngle(e),r()},onComplete:function(){i.setCoords(),n()},onStart:function(){i.set("active",!1)}}),this}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{straightenObject:function(e){return e.straighten(),this.renderAll(),this},fxStraightenObject:function(e){return e.fxStraighten({onChange:this.renderAll.bind(this)}),this}}),fabric.Image.filters=fabric.Image.filters||{},fabric.Image.filters.BaseFilter=fabric.util.createClass({type:"BaseFilter",toObject:function(){return{type:this.type}},toJSON:function(){return this.toObject()}}),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Brightness=t.util.createClass(t.Image.filters.BaseFilter,{type:"Brightness",initialize:function(e){e=e||{},this.brightness=e.brightness||0},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.brightness;for(var s=0,o=r.length;s<o;s+=4)r[s]+=i,r[s+1]+=i,r[s+2]+=i;t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{brightness:this.brightness})}}),t.Image.filters.Brightness.fromObject=function(e){return new t.Image.filters.Brightness(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Convolute=t.util.createClass(t.Image.filters.BaseFilter,{type:"Convolute",initialize:function(e){e=e||{},this.opaque=e.opaque,this.matrix=e.matrix||[0,0,0,0,1,0,0,0,0];var n=t.util.createCanvasElement();this.tmpCtx=n.getContext("2d")},_createImageData:function(e,t){return this.tmpCtx.createImageData(e,t)},applyTo:function(e){var t=this.matrix,n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=Math.round(Math.sqrt(t.length)),s=Math.floor(i/2),o=r.data,u=r.width,a=r.height,f=u,l=a,c=this._createImageData(f,l),h=c.data,p=this.opaque?1:0;for(var d=0;d<l;d++)for(var v=0;v<f;v++){var m=d,g=v,y=(d*f+v)*4,b=0,w=0,E=0,S=0;for(var x=0;x<i;x++)for(var T=0;T<i;T++){var N=m+x-s,C=g+T-s;if(N<0||N>a||C<0||C>u)continue;var k=(N*u+C)*4,L=t[x*i+T];b+=o[k]*L,w+=o[k+1]*L,E+=o[k+2]*L,S+=o[k+3]*L}h[y]=b,h[y+1]=w,h[y+2]=E,h[y+3]=S+p*(255-S)}n.putImageData(c,0,0)},toObject:function(){return n(this.callSuper("toObject"),{opaque:this.opaque,matrix:this.matrix})}}),t.Image.filters.Convolute.fromObject=function(e){return new t.Image.filters.Convolute(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.GradientTransparency=t.util.createClass(t.Image.filters.BaseFilter,{type:"GradientTransparency",initialize:function(e){e=e||{},this.threshold=e.threshold||100},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.threshold,s=r.length;for(var o=0,u=r.length;o<u;o+=4)r[o+3]=i+255*(s-o)/s;t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{threshold:this.threshold})}}),t.Image.filters.GradientTransparency.fromObject=function(e){return new t.Image.filters.GradientTransparency(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Grayscale=t.util.createClass(t.Image.filters.BaseFilter,{type:"Grayscale",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=n.width*n.height*4,s=0,o;while(s<i)o=(r[s]+r[s+1]+r[s+2])/3,r[s]=o,r[s+1]=o,r[s+2]=o,s+=4;t.putImageData(n,0,0)}}),t.Image.filters.Grayscale.fromObject=function(){return new t.Image.filters.Grayscale}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Invert=t.util.createClass(t.Image.filters.BaseFilter,{type:"Invert",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=r.length,s;for(s=0;s<i;s+=4)r[s]=255-r[s],r[s+1]=255-r[s+1],r[s+2]=255-r[s+2];t.putImageData(n,0,0)}}),t.Image.filters.Invert.fromObject=function(){return new t.Image.filters.Invert}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Mask=t.util.createClass(t.Image.filters.BaseFilter,{type:"Mask",initialize:function(e){e=e||{},this.mask=e.mask,this.channel=[0,1,2,3].indexOf(e.channel)>-1?e.channel:0},applyTo:function(e){if(!this.mask)return;var n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=r.data,s=this.mask.getElement(),o=t.util.createCanvasElement(),u=this.channel,a,f=r.width*r.height*4;o.width=s.width,o.height=s.height,o.getContext("2d").drawImage(s,0,0,s.width,s.height);var l=o.getContext("2d").getImageData(0,0,s.width,s.height),c=l.data;for(a=0;a<f;a+=4)i[a+3]=c[a+u];n.putImageData(r,0,0)},toObject:function(){return n(this.callSuper("toObject"),{mask:this.mask.toObject(),channel:this.channel})}}),t.Image.filters.Mask.fromObject=function(e,n){t.util.loadImage(e.mask.src,function(r){e.mask=new t.Image(r,e.mask),n&&n(new t.Image.filters.Mask(e))})},t.Image.filters.Mask.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Noise=t.util.createClass
-(t.Image.filters.BaseFilter,{type:"Noise",initialize:function(e){e=e||{},this.noise=e.noise||0},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.noise,s;for(var o=0,u=r.length;o<u;o+=4)s=(.5-Math.random())*i,r[o]+=s,r[o+1]+=s,r[o+2]+=s;t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{noise:this.noise})}}),t.Image.filters.Noise.fromObject=function(e){return new t.Image.filters.Noise(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Pixelate=t.util.createClass(t.Image.filters.BaseFilter,{type:"Pixelate",initialize:function(e){e=e||{},this.blocksize=e.blocksize||4},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=n.height,s=n.width,o,u,a,f,l,c,h;for(u=0;u<i;u+=this.blocksize)for(a=0;a<s;a+=this.blocksize){o=u*4*s+a*4,f=r[o],l=r[o+1],c=r[o+2],h=r[o+3];for(var p=u,d=u+this.blocksize;p<d;p++)for(var v=a,m=a+this.blocksize;v<m;v++)o=p*4*s+v*4,r[o]=f,r[o+1]=l,r[o+2]=c,r[o+3]=h}t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{blocksize:this.blocksize})}}),t.Image.filters.Pixelate.fromObject=function(e){return new t.Image.filters.Pixelate(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.RemoveWhite=t.util.createClass(t.Image.filters.BaseFilter,{type:"RemoveWhite",initialize:function(e){e=e||{},this.threshold=e.threshold||30,this.distance=e.distance||20},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.threshold,s=this.distance,o=255-i,u=Math.abs,a,f,l;for(var c=0,h=r.length;c<h;c+=4)a=r[c],f=r[c+1],l=r[c+2],a>o&&f>o&&l>o&&u(a-f)<s&&u(a-l)<s&&u(f-l)<s&&(r[c+3]=1);t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{threshold:this.threshold,distance:this.distance})}}),t.Image.filters.RemoveWhite.fromObject=function(e){return new t.Image.filters.RemoveWhite(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Sepia=t.util.createClass(t.Image.filters.BaseFilter,{type:"Sepia",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=r.length,s,o;for(s=0;s<i;s+=4)o=.3*r[s]+.59*r[s+1]+.11*r[s+2],r[s]=o+100,r[s+1]=o+50,r[s+2]=o+255;t.putImageData(n,0,0)}}),t.Image.filters.Sepia.fromObject=function(){return new t.Image.filters.Sepia}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Sepia2=t.util.createClass(t.Image.filters.BaseFilter,{type:"Sepia2",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=r.length,s,o,u,a;for(s=0;s<i;s+=4)o=r[s],u=r[s+1],a=r[s+2],r[s]=(o*.393+u*.769+a*.189)/1.351,r[s+1]=(o*.349+u*.686+a*.168)/1.203,r[s+2]=(o*.272+u*.534+a*.131)/2.14;t.putImageData(n,0,0)}}),t.Image.filters.Sepia2.fromObject=function(){return new t.Image.filters.Sepia2}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Tint=t.util.createClass(t.Image.filters.BaseFilter,{type:"Tint",initialize:function(e){e=e||{},this.color=e.color||"#000000",this.opacity=typeof e.opacity!="undefined"?e.opacity:(new t.Color(this.color)).getAlpha()},applyTo:function(e){var n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=r.data,s=i.length,o,u,a,f,l,c,h,p,d;d=(new t.Color(this.color)).getSource(),u=d[0]*this.opacity,a=d[1]*this.opacity,f=d[2]*this.opacity,p=1-this.opacity;for(o=0;o<s;o+=4)l=i[o],c=i[o+1],h=i[o+2],i[o]=u+l*p,i[o+1]=a+c*p,i[o+2]=f+h*p;n.putImageData(r,0,0)},toObject:function(){return n(this.callSuper("toObject"),{color:this.color,opacity:this.opacity})}}),t.Image.filters.Tint.fromObject=function(e){return new t.Image.filters.Tint(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Multiply=t.util.createClass(t.Image.filters.BaseFilter,{type:"Multiply",initialize:function(e){e=e||{},this.color=e.color||"#000000"},applyTo:function(e){var n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=r.data,s=i.length,o,u;u=(new t.Color(this.color)).getSource();for(o=0;o<s;o+=4)i[o]*=u[0]/255,i[o+1]*=u[1]/255,i[o+2]*=u[2]/255;n.putImageData(r,0,0)},toObject:function(){return n(this.callSuper("toObject"),{color:this.color})}}),t.Image.filters.Multiply.fromObject=function(e){return new t.Image.filters.Multiply(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.object.clone,i=t.util.toFixed,s=t.StaticCanvas.supports("setLineDash");if(t.Text){t.warn("fabric.Text is already defined");return}var o=t.Object.prototype.stateProperties.concat();o.push("fontFamily","fontWeight","fontSize","text","textDecoration","textAlign","fontStyle","lineHeight","textBackgroundColor","useNative","path"),t.Text=t.util.createClass(t.Object,{_dimensionAffectingProps:{fontSize:!0,fontWeight:!0,fontFamily:!0,textDecoration:!0,fontStyle:!0,lineHeight:!0,stroke:!0,strokeWidth:!0,text:!0},_reNewline:/\r?\n/,type:"text",fontSize:40,fontWeight:"normal",fontFamily:"Times New Roman",textDecoration:"",textAlign:"left",fontStyle:"",lineHeight:1.3,textBackgroundColor:"",path:null,useNative:!0,stateProperties:o,stroke:null,shadow:null,initialize:function(e,t){t=t||{},this.text=e,this.__skipDimension=!0,this.setOptions(t),this.__skipDimension=!1,this._initDimensions()},_initDimensions:function(){if(this.__skipDimension)return;var e=t.util.createCanvasElement();this._render(e.getContext("2d"))},toString:function(){return"#<fabric.Text ("+this.complexity()+'): { "text": "'+this.text+'", "fontFamily": "'+this.fontFamily+'" }>'},_render:function(e){var t=this.group&&this.group.type==="path-group";t&&!this.transformMatrix?e.translate(-this.group.width/2+this.left,-this.group.height/2+this.top):t&&this.transformMatrix&&e.translate(-this.group.width/2,-this.group.height/2),typeof Cufon=="undefined"||this.useNative===!0?this._renderViaNative(e):this._renderViaCufon(e)},_renderViaNative:function(e){var n=this.text.split(this._reNewline);this.transform(e,t.isLikelyNode),this._setTextStyles(e),this.width=this._getTextWidth(e,n),this.height=this._getTextHeight(e,n),this.clipTo&&t.util.clipContext(this,e),this._renderTextBackground(e,n),this._translateForTextAlign(e),this._renderText(e,n),this.textAlign!=="left"&&this.textAlign!=="justify"&&e.restore(),this._renderTextDecoration(e,n),this.clipTo&&e.restore(),this._setBoundaries(e,n),this._totalLineHeight=0},_renderText:function(e,t){e.save(),this._setShadow(e),this._renderTextFill(e,t),this._renderTextStroke(e,t),this._removeShadow(e),e.restore()},_translateForTextAlign:function(e){this.textAlign!=="left"&&this.textAlign!=="justify"&&(e.save(),e.translate(this.textAlign==="center"?this.width/2:this.width,0))},_setBoundaries:function(e,t){this._boundaries=[];for(var n=0,r=t.length;n<r;n++){var i=this._getLineWidth(e,t[n]),s=this._getLineLeftOffset(i);this._boundaries.push({height:this.fontSize*this.lineHeight,width:i,left:s})}},_setTextStyles:function(e){this._setFillStyles(e),this._setStrokeStyles(e),e.textBaseline="alphabetic",this.skipTextAlign||(e.textAlign=this.textAlign),e.font=this._getFontDeclaration()},_getTextHeight:function(e,t){return this.fontSize*t.length*this.lineHeight},_getTextWidth:function(e,t){var n=e.measureText(t[0]||"|").width;for(var r=1,i=t.length;r<i;r++){var s=e.measureText(t[r]).width;s>n&&(n=s)}return n},_renderChars:function(e,t,n,r,i){t[e](n,r,i)},_renderTextLine:function(e,t,n,r,i,s){i-=this.fontSize/4;if(this.textAlign!=="justify"){this._renderChars(e,t,n,r,i,s);return}var o=t.measureText(n).width,u=this.width;if(u>o){var a=n.split(/\s+/),f=t.measureText(n.replace(/\s+/g,"")).width,l=u-f,c=a.length-1,h=l/c,p=0;for(var d=0,v=a.length;d<v;d++)this._renderChars(e,t,a[d],r+p,i,s),p+=t.measureText(a[d]).width+h}else this._renderChars(e,t,n,r,i,s)},_getLeftOffset:function(){return t.isLikelyNode?0:-this.width/2},_getTopOffset:function(){return-this.height/2},_renderTextFill:function(e,t){if(!this.fill&&!this._skipFillStrokeCheck)return;this._boundaries=[];var n=0;for(var r=0,i=t.length;r<i;r++){var s=this._getHeightOfLine(e,r,t);n+=s,this._renderTextLine("fillText",e,t[r],this._getLeftOffset(),this._getTopOffset()+n,r)}},_renderTextStroke:function(e,t){if(!this.stroke&&!this._skipFillStrokeCheck)return;var n=0;e.save(),this.strokeDashArray&&(1&this.strokeDashArray.length&&this.strokeDashArray.push.apply(this.strokeDashArray,this.strokeDashArray),s&&e.setLineDash(this.strokeDashArray)),e.beginPath();for(var r=0,i=t.length;r<i;r++){var o=this._getHeightOfLine(e,r,t);n+=o,this._renderTextLine("strokeText",e,t[r],this._getLeftOffset(),this._getTopOffset()+n,r)}e.closePath(),e.restore()},_getHeightOfLine:function(){return this.fontSize*this.lineHeight},_renderTextBackground:function(e,t){this._renderTextBoxBackground(e),this._renderTextLinesBackground(e,t)},_renderTextBoxBackground:function(e){if(!this.backgroundColor)return;e.save(),e.fillStyle=this.backgroundColor,e.fillRect(this._getLeftOffset(),this._getTopOffset(),this.width,this.height),e.restore()},_renderTextLinesBackground:function(e,t){if(!this.textBackgroundColor)return;e.save(),e.fillStyle=this.textBackgroundColor;for(var n=0,r=t.length;n<r;n++)if(t[n]!==""){var i=this._getLineWidth(e,t[n]),s=this._getLineLeftOffset(i);e.fillRect(this._getLeftOffset()+s,this._getTopOffset()+n*this.fontSize*this.lineHeight,i,this.fontSize*this.lineHeight)}e.restore()},_getLineLeftOffset:function(e){return this.textAlign==="center"?(this.width-e)/2:this.textAlign==="right"?this.width-e:0},_getLineWidth:function(e,t){return this.textAlign==="justify"?this.width:e.measureText(t).width},_renderTextDecoration:function(e,t){function i(i){for(var s=0,o=t.length;s<o;s++){var u=r._getLineWidth(e,t[s]),a=r._getLineLeftOffset(u);e.fillRect(r._getLeftOffset()+a,~~(i+s*r._getHeightOfLine(e,s,t)-n),u,1)}}if(!this.textDecoration)return;var n=this._getTextHeight(e,t)/2,r=this;this.textDecoration.indexOf("underline")>-1&&i(this.fontSize*this.lineHeight),this.textDecoration.indexOf("line-through")>-1&&i(this.fontSize*this.lineHeight-this.fontSize/2),this.textDecoration.indexOf("overline")>-1&&i(this.fontSize*this.lineHeight-this.fontSize)},_getFontDeclaration:function(){return[t.isLikelyNode?this.fontWeight:this.fontStyle,t.isLikelyNode?this.fontStyle:this.fontWeight,this.fontSize+"px",t.isLikelyNode?'"'+this.fontFamily+'"':this.fontFamily].join(" ")},render:function(e){if(!this.visible)return;e.save();var t=this.transformMatrix;t&&(!this.group||this.group.type==="path-group")&&e.transform(t[0],t[1],t[2],t[3],t[4],t[5]),this._render(e),e.restore()},toObject:function(e){var t=n(this.callSuper("toObject",e),{text:this.text,fontSize:this.fontSize,fontWeight:this.fontWeight,fontFamily:this.fontFamily,fontStyle:this.fontStyle,lineHeight:this.lineHeight,textDecoration:this.textDecoration,textAlign:this.textAlign,path:this.path,textBackgroundColor:this.textBackgroundColor,useNative:this.useNative});return this.includeDefaultValues||this._removeDefaultValues(t),t},toSVG:function(e){var t=[],n=this.text.split(this._reNewline),r=this._getSVGLeftTopOffsets(n),i=this._getSVGTextAndBg(r.lineTop,r.textLeft,n),s=this._getSVGShadows(r.lineTop,n);return r.textTop+=this._fontAscent?this._fontAscent/5*this.lineHeight:0,this._wrapSVGTextAndBg(t,i,s,r),e?e(t.join("")):t.join("")},_getSVGLeftTopOffsets:function(e){var t=this.useNative?this.fontSize*this.lineHeight:-this._fontAscent-this._fontAscent/5*this.lineHeight,n=-(this.width/2),r=this.useNative?this.fontSize-1:this.height/2-e.length*this.fontSize-this._totalLineHeight;return{textLeft:n,textTop:r,lineTop:t}},_wrapSVGTextAndBg:function(e,t,n,r){e.push('<g transform="',this.getSvgTransform(),'">',t.textBgRects.join(""),"<text ",this.fontFamily?'font-family="'+this.fontFamily.replace(/"/g,"'")+'" ':"",this.fontSize?'font-size="'+this.fontSize+'" ':"",this.fontStyle?'font-style="'+this.fontStyle+'" ':"",this.fontWeight?'font-weight="'+this.fontWeight+'" ':"",this.textDecoration?'text-decoration="'+this.textDecoration+'" ':"",'style="',this.getSvgStyles(),'" ','transform="translate(',i(r.textLeft,2)," ",i(r.textTop,2),')">',n.join(""),t.textSpans.join(""),"</text>","</g>")},_getSVGShadows:function(e,n){var r=[],s,o,u=1;if(!this.shadow||!this._boundaries)return r;for(s=0,o=n.length;s<o;s++)if(n[s]!==""){var a=this._boundaries&&this._boundaries[s]?this._boundaries[s].left:0;r.push('<tspan x="',i(a+u+this.shadow.offsetX,2),s===0||this.useNative?'" y':'" dy','="',i(this.useNative?e*s-this.height/2+this.shadow.offsetY:e+(s===0?this.shadow.offsetY:0),2),'" ',this._getFillAttributes(this.shadow.color),">",t.util.string.escapeXml(n[s]),"</tspan>"),u=1}else u++;return r},_getSVGTextAndBg:function(e,t,n){var r=[],i=[],s=1;this._setSVGBg(i);for(var o=0,u=n.length;o<u;o++){n[o]!==""?(this._setSVGTextLineText(n[o],o,r,e,s,i),s=1):s++;if(!this.textBackgroundColor||!this._boundaries)continue;this._setSVGTextLineBg(i,o,t,e)}return{textSpans:r,textBgRects:i}},_setSVGTextLineText:function(e,n,r,s,o){var u=this._boundaries&&this._boundaries[n]?i(this._boundaries[n].left,2):0;r.push('<tspan x="',u,'" ',n===0||this.useNative?"y":"dy",'="',i(this.useNative?s*n-this.height/2:s*o,2),'" ',this._getFillAttributes(this.fill),">",t.util.string.escapeXml(e),"</tspan>")},_setSVGTextLineBg:function(e,t,n,r){e.push("<rect ",this._getFillAttributes(this.textBackgroundColor),' x="',i(n+this._boundaries[t].left,2),'" y="',i(r*t-this.height/2,2),'" width="',i(this._boundaries[t].width,2),'" height="',i(this._boundaries[t].height,2),'"></rect>')},_setSVGBg:function(e){this.backgroundColor&&this._boundaries&&e.push("<rect ",this._getFillAttributes(this.backgroundColor),' x="',i(-this.width/2,2),'" y="',i(-this.height/2,2),'" width="',i(this.width,2),'" height="',i(this.height,2),'"></rect>')},_getFillAttributes:function(e){var n=e&&typeof e=="string"?new t.Color(e):"";return!n||!n.getSource()||n.getAlpha()===1?'fill="'+e+'"':'opacity="'+n.getAlpha()+'" fill="'+n.setAlpha(1).toRgb()+'"'},_set:function(e,t){e==="fontFamily"&&this.path&&(this.path=this.path.replace(/(.*?)([^\/]*)(\.font\.js)/,"$1"+t+"$3")),this.callSuper("_set",e,t),e in this._dimensionAffectingProps&&(this._initDimensions(),this.setCoords())},complexity:function(){return 1}}),t.Text.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("x y dx dy font-family font-style font-weight font-size text-decoration text-anchor".split(" ")),t.Text.DEFAULT_SVG_FONT_SIZE=16,t.Text.fromElement=function(e,n){if(!e)return null;var r=t.parseAttributes(e,t.Text.ATTRIBUTE_NAMES);n=t.util.object.extend(n?t.util.object.clone(n):{},r),"dx"in r&&(n.left+=r.dx),"dy"in r&&(n.top+=r.dy),"fontSize"in n||(n.fontSize=t.Text.DEFAULT_SVG_FONT_SIZE),n.originX||(n.originX="center");var i=new t.Text(e.textContent,n);return i.set({left:i.getLeft()+i.getWidth()/2,top:i.getTop()-i.getHeight()/2}),i},t.Text.fromObject=function(e){return new t.Text(e.text,r(e))},t.util.createAccessors(t.Text)}(typeof exports!="undefined"?exports:this),function(){var e=fabric.util.object.clone;fabric.IText=fabric.util.createClass(fabric.Text,fabric.Observable,{type:"i-text",selectionStart:0,selectionEnd:0,selectionColor:"rgba(17,119,255,0.3)",isEditing:!1,editable:!0,editingBorderColor:"rgba(102,153,255,0.25)",cursorWidth:2,cursorColor:"#333",cursorDelay:1e3,cursorDuration:600,styles:null,caching:!0,_skipFillStrokeCheck:!0,_reSpace:/\s|\n/,_fontSizeFraction:4,_currentCursorOpacity:0,_selectionDirection:null,_abortCursorAnimation:!1,_charWidthsCache:{},initialize:function(e,t){this.styles=t?t.styles||{}:{},this.callSuper("initialize",e,t),this.initBehavior(),fabric.IText.instances.push(this),this.__lineWidths={},this.__lineHeights={},this.__lineOffsets={}},isEmptyStyles:function(){if(!this.styles)return!0;var e=this.styles;for(var t in e)for(var n in e[t])for(var r in e[t][n])return!1;return!0},setSelectionStart:function(e){this.selectionStart!==e&&(this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})),this.selectionStart=e,this.hiddenTextarea&&(this.hiddenTextarea.selectionStart=e)},setSelectionEnd:function(e){this.selectionEnd!==e&&(this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})),this.selectionEnd=e,this.hiddenTextarea&&(this.hiddenTextarea.selectionEnd=e)},getSelectionStyles:function(e,t){if(arguments.length===2){var n=[];for(var r=e;r<t;r++)n.push(this.getSelectionStyles(r));return n}var i=this.get2DCursorLocation(e);return this.styles[i.lineIndex]?this.styles[i.lineIndex][i.charIndex]||{}:{}},setSelectionStyles:function(e){if(this.selectionStart===this.selectionEnd)this._extendStyles(this.selectionStart,e);else for(var t=this.selectionStart;t<this.selectionEnd;t++)this._extendStyles(t,e);return this},_extendStyles:function(e,t){var n=this.get2DCursorLocation(e);this.styles[n.lineIndex]||(this.styles[n.lineIndex]={}),this.styles[n.lineIndex][n.charIndex]||(this.styles[n.lineIndex][n.charIndex]={}),fabric.util.object.extend(this.styles[n.lineIndex][n.charIndex],t)},_render:function(e){this.callSuper("_render",e),this.ctx=e,this.isEditing&&this.renderCursorOrSelection()},renderCursorOrSelection:function(){if(!this.active)return;var e=this.text.split(""),t;this.selectionStart===this.selectionEnd?(t=this._getCursorBoundaries(e,"cursor"),this.renderCursor(t)):(t=this._getCursorBoundaries(e,"selection"),this.renderSelection(e,t))},get2DCursorLocation:function(e){typeof e=="undefined"&&(e=this.selectionStart);var t=this.text.slice(0,e),n=t.split(this._reNewline);return{lineIndex:n.length-1,charIndex:n[n.length-1].length}},getCurrentCharStyle:function(e,t){var n=this.styles[e]&&this.styles[e][t===0?0:t-1];return{fontSize:n&&n.fontSize||this.fontSize,fill:n&&n.fill||this.fill,textBackgroundColor:n&&n.textBackgroundColor||this.textBackgroundColor,textDecoration:n&&n.textDecoration||this.textDecoration,fontFamily:n&&n.fontFamily||this.fontFamily,fontWeight:n&&n.fontWeight||this.fontWeight,fontStyle:n&&n.fontStyle||this.fontStyle,stroke:n&&n.stroke||this.stroke,strokeWidth:n&&n.strokeWidth||this.strokeWidth}},getCurrentCharFontSize:function(e,t){return this.styles[e]&&this.styles[e][t===0?0:t-1]&&this.styles[e][t===0?0:t-1].fontSize||this.fontSize},getCurrentCharColor:function(e,t){return this.styles[e]&&this.styles[e][t===0?0:t-1]&&this.styles[e][t===0?0:t-1].fill||this.cursorColor},_getCursorBoundaries:function(e,t){var n=this.get2DCursorLocation(),r=this.text.split(this._reNewline),i=Math.round(this._getLeftOffset()),s=-this.height/2,o=this._getCursorBoundariesOffsets(e,t,n,r);return{left:i,top:s,leftOffset:o.left+o.lineLeft,topOffset:o.top}},_getCursorBoundariesOffsets:function(e,t,n,r){var i=0,s=0,o=0,u=0,a=t==="cursor"?this._getHeightOfLine(this.ctx,0)-this.getCurrentCharFontSize(n.lineIndex,n.charIndex):0;for(var f=0;f<this.selectionStart;f++){if(e[f]==="\n"){u=0;var l=s+(t==="cursor"?1:0);a+=this._getCachedLineHeight(l),s++,o=0}else u+=this._getWidthOfChar(this.ctx,e[f],s,o),o++;i=this._getCachedLineOffset(s,r)}return this._clearCache(),{top:a,left:u,lineLeft:i}},_clearCache:function(){this.__lineWidths={},this.__lineHeights={},this.__lineOffsets={}},_getCachedLineHeight:function(e){return this.__lineHeights[e]||(this.__lineHeights[e]=this._getHeightOfLine(this.ctx,e))},_getCachedLineWidth:function(e,t){return this.__lineWidths[e]||(this.__lineWidths[e]=this._getWidthOfLine(this.ctx,e,t))},_getCachedLineOffset:function(e,t){var n=this._getCachedLineWidth(e,t);return this.__lineOffsets[e]||(this.__lineOffsets[e]=this._getLineLeftOffset(n))},renderCursor:function(e){var t=this.ctx;t.save();var n=this.get2DCursorLocation(),r=n.lineIndex,i=n.charIndex,s=this.getCurrentCharFontSize(r,i),o=r===0&&i===0?this._getCachedLineOffset(r,this.text.split(this._reNewline)):e.leftOffset;t.fillStyle=this.getCurrentCharColor(r,i),t.globalAlpha=this.__isMousedown?1:this._currentCursorOpacity,t.fillRect(e.left+o,e.top+e.topOffset,this.cursorWidth/this.scaleX,s),t.restore()},renderSelection:function(e,t){var n=this.ctx;n.save(),n.fillStyle=this.selectionColor;var r=this.get2DCursorLocation(this.selectionStart),i=this.get2DCursorLocation(this.selectionEnd),s=r.lineIndex,o=i.lineIndex,u=this.text.split(this._reNewline);for(var a=s;a<=o;a++){var f=this._getCachedLineOffset(a,u)||0,l=this._getCachedLineHeight(a),c=0;if(a===s)for(var h=0,p=u[a].length;h<p;h++)h>=r.charIndex&&(a!==o||h<i.charIndex)&&(c+=this._getWidthOfChar(n,u[a][h],a,h)),h<r.charIndex&&(f+=this._getWidthOfChar(n,u[a][h],a,h));else if(a>s&&a<o)c+=this._getCachedLineWidth(a,u)||5;else if(a===o)for(var d=0,v=i.charIndex;d<v;d++)c+=this._getWidthOfChar(n,u[a][d],a,d);n.fillRect(t.left+f,t.top+t.topOffset,c,l),t.topOffset+=l}n.restore()},_renderChars:function(e,t,n,r,i,s){if(this.isEmptyStyles())return this._renderCharsFast(e,t,n,r,i);this.skipTextAlign=!0,r-=this.textAlign==="center"?this.width/2:this.textAlign==="right"?this.width:0;var o=this.text.split(this._reNewline),u=this._getWidthOfLine(t,s,o),a=this._getHeightOfLine(t,s,o),f=this._getLineLeftOffset(u),l=n.split(""),c,h="";r+=f||0,t.save();for(var p=0,d=l.length;p<=d;p++){c=c||this.getCurrentCharStyle(s,p);var v=this.getCurrentCharStyle(s,p+1);if(this._hasStyleChanged(c,v)||p===d)this._renderChar(e,t,s,p-1,h,r,i,a),h="",c=v;h+=l[p]}t.restore()},_renderCharsFast:function(e,t,n,r,i){this.skipTextAlign=!1,e==="fillText"&&this.fill&&this.callSuper("_renderChars",e,t,n,r,i),e==="strokeText"&&this.stroke&&this.callSuper("_renderChars",e,t,n,r,i)},_renderChar:function(e,t,n,r,i,s,o,u){var a,f,l;if(this.styles&&this.styles[n]&&(a=this.styles[n][r])){var c=a.stroke||this.stroke,h=a.fill||this.fill;t.save(),f=this._applyCharStylesGetWidth(t,i,n,r,a),l=this._getHeightOfChar(t,i,n,r),h&&t.fillText(i,s,o),c&&t.strokeText(i,s,o),this._renderCharDecoration(t,a,s,o,f,u,l),t.restore(),t.translate(f,0)}else e==="strokeText"&&this.stroke&&t[e](i,s,o),e==="fillText"&&this.fill&&t[e](i,s,o),f=this._applyCharStylesGetWidth(t,i,n,r),this._renderCharDecoration(t,null,s,o,f,u),t.translate(t.measureText(i).width,0)},_hasStyleChanged:function(e,t){return e.fill!==t.fill||e.fontSize!==t.fontSize||e.textBackgroundColor!==t.textBackgroundColor||e.textDecoration!==t.textDecoration||e.fontFamily!==t.fontFamily||e.fontWeight!==t.fontWeight||e.fontStyle!==t.fontStyle||e.stroke!==t.stroke||e.strokeWidth!==t.strokeWidth},_renderCharDecoration:function(e,t,n,r,i,s,o){var u=t?t.textDecoration||this.textDecoration:this.textDecoration,a=(t?t.fontSize:null)||this.fontSize;if(!u)return;u.indexOf("underline")>-1&&this._renderCharDecorationAtOffset(e,n,r+this.fontSize/this._fontSizeFraction,i,0,this.fontSize/20),u.indexOf("line-through")>-1&&this._renderCharDecorationAtOffset(e,n,r+this.fontSize/this._fontSizeFraction,i,o/2,a/20),u.indexOf("overline")>-1&&this._renderCharDecorationAtOffset(e,n,r,i,s-this.fontSize/this._fontSizeFraction,this.fontSize/20)},_renderCharDecorationAtOffset:function(e,t,n,r,i,s){e.fillRect(t,n-i,r,s)},_renderTextLine:function(e,t,n,r,i,s){i+=this.fontSize/4,this.callSuper("_renderTextLine",e,t,n,r,i,s)},_renderTextDecoration:function(e,t){if(this.isEmptyStyles())return this.callSuper("_renderTextDecoration",e,t)},_renderTextLinesBackground:function(e,t){if(!this.textBackgroundColor&&!this.styles)return;e.save(),this.textBackgroundColor&&(e.fillStyle=this.textBackgroundColor);var n=0,r=this.fontSize/this._fontSizeFraction;for(var i=0,s=t.length;i<s;i++){var o=this._getHeightOfLine(e,i,t);if(t[i]===""){n+=o;continue}var u=this._getWidthOfLine(e,i,t),a=this._getLineLeftOffset(u);this.textBackgroundColor&&(e.fillStyle=this.textBackgroundColor,e.fillRect(this._getLeftOffset()+a,this._getTopOffset()+n+r,u,o));if(this.styles[i])for(var f=0,l=t[i].length;f<l;f++)if(this.styles[i]&&this.styles[i][f]&&this.styles[i][f].textBackgroundColor){var c=t[i][f];e.fillStyle=this.styles[i][f].textBackgroundColor,e.fillRect(this._getLeftOffset()+a+this._getWidthOfCharsAt(e,i,f,t),this._getTopOffset()+n+r,this._getWidthOfChar(e,c,i,f,t)+1,o)}n+=o}e.restore()},_getCacheProp:function(e,t){return e+t.fontFamily+t.fontSize+t.fontWeight+t.fontStyle+t.shadow},_applyCharStylesGetWidth:function(t,n,r,i,s){var o=s||this.styles[r]&&this.styles[r][i];o?o=e(o):o={},this._applyFontStyles(o);var u=this._getCacheProp(n,o);if(this.isEmptyStyles()&&this._charWidthsCache[u]&&this.caching)return this._charWidthsCache[u];typeof o.shadow=="string"&&(o.shadow=new fabric.Shadow(o.shadow));var a=o.fill||this.fill;return t.fillStyle=a.toLive?a.toLive(t):a,o.stroke&&(t.strokeStyle=o.stroke&&o.stroke.toLive?o.stroke.toLive(t):o.stroke),t.lineWidth=o.strokeWidth||this.strokeWidth,t.font=this._getFontDeclaration.call(o),this._setShadow.call(o,t),this.caching?(this._charWidthsCache[u]||(this._charWidthsCache[u]=t.measureText(n).width),this._charWidthsCache[u]):t.measureText(n).width},_applyFontStyles:function(e){e.fontFamily||(e.fontFamily=this.fontFamily),e.fontSize||(e.fontSize=this.fontSize),e.fontWeight||(e.fontWeight=this.fontWeight),e.fontStyle||(e.fontStyle=this.fontStyle)},_getStyleDeclaration:function(t,n){return this.styles[t]&&this.styles[t][n]?e(this.styles[t][n]):{}},_getWidthOfChar:function(e,t,n,r){var i=this._getStyleDeclaration(n,r);this._applyFontStyles(i);var s=this._getCacheProp(t,i);if(this._charWidthsCache[s]&&this.caching)return this._charWidthsCache[s];if(e){e.save();var o=this._applyCharStylesGetWidth(e,t,n,r);return e.restore(),o}},_getHeightOfChar:function(e,t,n,r){return this.styles[n]&&this.styles[n][r]?this.styles[n][r].fontSize||this.fontSize:this.fontSize},_getWidthOfCharAt:function(e,t,n,r){r=r||this.text.split(this._reNewline);var i=r[t].split("")[n];return this._getWidthOfChar(e,i,t,n)},_getHeightOfCharAt:function(e,t,n,r){r=r||this.text.split(this._reNewline);var i=r[t].split("")[n];return this._getHeightOfChar(e,i,t,n)},_getWidthOfCharsAt:function(e,t,n,r){var i=0;for(var s=0;s<n;s++)i+=this._getWidthOfCharAt(e,t,s,r);return i},_getWidthOfLine:function(e,t,n){return this._getWidthOfCharsAt(e,t,n[t].length,n)},_getTextWidth:function(e,t){if(this.isEmptyStyles())return this.callSuper("_getTextWidth",e,t);var n=this._getWidthOfLine(e,0,t);for(var r=1,i=t.length;r<i;r++){var s=this._getWidthOfLine(e,r,t);s>n&&(n=s)}return n},_getHeightOfLine:function(e,t,n){n=n||this.text.split(this._reNewline);var r=this._getHeightOfChar(e,n[t][0],t,0),i=n[t],s=i.split("");for(var o=1,u=s.length;o<u;o++){var a=this._getHeightOfChar(e,s[o],t,o);a>r&&(r=a)}return r*this.lineHeight},_getTextHeight:function(e,t){var n=0;for(var r=0,i=t.length;r<i;r++)n+=this._getHeightOfLine(e,r,t);return n},_getTopOffset:function(){var e=fabric.Text.prototype._getTopOffset.call(this);return e-this.fontSize/this._fontSizeFraction},_renderTextBoxBackground:function(e){if(!this.backgroundColor)return;e.save(),e.fillStyle=this.backgroundColor,e.fillRect(this._getLeftOffset(),this._getTopOffset()+this.fontSize/this._fontSizeFraction,this.width,this.height),e.restore()},toObject:function(t){return fabric.util.object.extend(this.callSuper("toObject",t),{styles:e(this.styles)})}}),fabric.IText.fromObject=function(t){return new fabric.IText(t.text,e(t))},fabric.IText.instances=[]}(),function(){var e=fabric.util.object.clone;fabric.util.object.extend(fabric.IText.prototype,{initBehavior:function(){this.initAddedHandler(),this.initCursorSelectionHandlers(),this.initDoubleClickSimulation()},initSelectedHandler:function(){this.on("selected",function(){var e=this;setTimeout(function(){e.selected=!0},100)})},initAddedHandler:function(){this.on("added",function(){this.canvas&&!this.canvas._hasITextHandlers&&(this.canvas._hasITextHandlers=!0,this._initCanvasHandlers())})},_initCanvasHandlers:function(){this.canvas.on("selection:cleared",function(){fabric.IText.prototype.exitEditingOnOthers.call()}),this.canvas.on("mouse:up",function(){fabric.IText.instances.forEach(function(e){e.__isMousedown=!1})}),this.canvas.on("object:selected",function(e){fabric.IText.prototype.exitEditingOnOthers.call(e.target)})},_tick:function(){var e=this;if(this._abortCursorAnimation)return;this.animate("_currentCursorOpacity",1,{duration:this.cursorDuration,onComplete:function(){e._onTickComplete()},onChange:function(){e.canvas&&e.canvas.renderAll()},abort:function(){return e._abortCursorAnimation}})},_onTickComplete:function(){if(this._abortCursorAnimation)return;var e=this;this._cursorTimeout1&&clearTimeout(this._cursorTimeout1),this._cursorTimeout1=setTimeout(function(){e.animate("_currentCursorOpacity",0,{duration:this.cursorDuration/2,onComplete:function(){e._tick()},onChange:function(){e.canvas&&e.canvas.renderAll()},abort:function(){return e._abortCursorAnimation}})},100)},initDelayedCursor:function(e){var t=this,n=e?0:this.cursorDelay;e&&(this._abortCursorAnimation=!0,clearTimeout(this._cursorTimeout1),this._currentCursorOpacity=1,this.canvas&&this.canvas.renderAll()),this._cursorTimeout2&&clearTimeout(this._cursorTimeout2),this._cursorTimeout2=setTimeout(function(){t._abortCursorAnimation=!1,t._tick()},n)},abortCursorAnimation:function(){this._abortCursorAnimation=!0,clearTimeout(this._cursorTimeout1),clearTimeout(this._cursorTimeout2),this._currentCursorOpacity=0,this.canvas&&this.canvas.renderAll();var e=this;setTimeout(function(){e._abortCursorAnimation=!1},10)},selectAll:function(){this.selectionStart=0,this.selectionEnd=this.text.length,this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})},getSelectedText:function(){return this.text.slice(this.selectionStart,this.selectionEnd)},findWordBoundaryLeft:function(e){var t=0,n=e-1;if(this._reSpace.test(this.text.charAt(n)))while(this._reSpace.test(this.text.charAt(n)))t++,n--;while(/\S/.test(this.text.charAt(n))&&n>-1)t++,n--;return e-t},findWordBoundaryRight:function(e){var t=0,n=e;if(this._reSpace.test(this.text.charAt(n)))while(this._reSpace.test(this.text.charAt(n)))t++,n++;while(/\S/.test(this.text.charAt(n))&&n<this.text.length)t++,n++;return e+t},findLineBoundaryLeft:function(e){var t=0,n=e-1;while(!/\n/.test(this.text.charAt(n))&&n>-1)t++,n--;return e-t},findLineBoundaryRight:function(e){var t=0,n=e;while(!/\n/.test(this.text.charAt(n))&&n<this.text.length)t++,n++;return e+t},getNumNewLinesInSelectedText:function(){var e=this.getSelectedText(),t=0;for(var n=0,r=e.split(""),i=r.length;n<i;n++)r[n]==="\n"&&t++;return t},searchWordBoundary:function(e,t){var n=this._reSpace.test(this.text.charAt(e))?e-1:e,r=this.text.charAt(n),i=/[ \n\.,;!\?\-]/;while(!i.test(r)&&n>0&&n<this.text.length)n+=t,r=this.text.charAt(n);return i.test(r)&&r!=="\n"&&(n+=t===1?0:1),n},selectWord:function(e){var t=this.searchWordBoundary(e,-1),n=this.searchWordBoundary(e,1);this.setSelectionStart(t),this.setSelectionEnd(n),this.initDelayedCursor(!0)},selectLine:function(e){var t=this.findLineBoundaryLeft(e),n=this.findLineBoundaryRight(e);this.setSelectionStart(t),this.setSelectionEnd(n),this.initDelayedCursor(!0)},enterEditing:function(){if(this.isEditing||!this.editable)return;return this.exitEditingOnOthers(),this.isEditing=!0,this.initHiddenTextarea(),this._updateTextarea(),this._saveEditingProps(),this._setEditingProps(),this._tick(),this.canvas&&this.canvas.renderAll(),this.fire("editing:entered"),this.canvas&&this.canvas.fire("text:editing:entered",{target:this}),this},exitEditingOnOthers:function(){fabric.IText.instances.forEach(function(e){e.selected=!1,e.isEditing&&e.exitEditing()},this)},_setEditingProps:function(){this.hoverCursor="text",this.canvas&&(this.canvas.defaultCursor=this.canvas.moveCursor="text"),this.borderColor=this.editingBorderColor,this.hasControls=this.selectable=!1,this.lockMovementX=this.lockMovementY=!0},_updateTextarea:function(){if(!this.hiddenTextarea)return;this.hiddenTextarea.value=this.text,this.hiddenTextarea.selectionStart=this.selectionStart},_saveEditingProps:function(){this._savedProps={hasControls:this.hasControls,borderColor:this.borderColor,lockMovementX:this.lockMovementX,lockMovementY:this.lockMovementY,hoverCursor:this.hoverCursor,defaultCursor:this.canvas&&this.canvas.defaultCursor,moveCursor:this.canvas&&this.canvas.moveCursor}},_restoreEditingProps:function(){if(!this._savedProps)return;this.hoverCursor=this._savedProps.overCursor,this.hasControls=this._savedProps.hasControls,this.borderColor=this._savedProps.borderColor,this.lockMovementX=this._savedProps.lockMovementX,this.lockMovementY=this._savedProps.lockMovementY,this.canvas&&
-(this.canvas.defaultCursor=this._savedProps.defaultCursor,this.canvas.moveCursor=this._savedProps.moveCursor)},exitEditing:function(){return this.selected=!1,this.isEditing=!1,this.selectable=!0,this.selectionEnd=this.selectionStart,this.hiddenTextarea&&this.canvas&&this.hiddenTextarea.parentNode.removeChild(this.hiddenTextarea),this.hiddenTextarea=null,this.abortCursorAnimation(),this._restoreEditingProps(),this._currentCursorOpacity=0,this.fire("editing:exited"),this.canvas&&this.canvas.fire("text:editing:exited",{target:this}),this},_removeExtraneousStyles:function(){var e=this.text.split(this._reNewline);for(var t in this.styles)e[t]||delete this.styles[t]},_removeCharsFromTo:function(e,t){var n=t;while(n!==e){var r=this.get2DCursorLocation(n).charIndex;n--;var i=this.get2DCursorLocation(n).charIndex,s=i>r;s?this.removeStyleObject(s,n+1):this.removeStyleObject(this.get2DCursorLocation(n).charIndex===0,n)}this.text=this.text.slice(0,e)+this.text.slice(t)},insertChars:function(e){var t=this.text.slice(this.selectionStart,this.selectionStart+1)==="\n";this.text=this.text.slice(0,this.selectionStart)+e+this.text.slice(this.selectionEnd),this.selectionStart===this.selectionEnd&&this.insertStyleObjects(e,t,this.copiedStyles),this.selectionStart+=e.length,this.selectionEnd=this.selectionStart,this.canvas&&this.canvas.renderAll().renderAll(),this.setCoords(),this.fire("changed"),this.canvas&&this.canvas.fire("text:changed",{target:this})},insertNewlineStyleObject:function(t,n,r){this.shiftLineStyles(t,1),this.styles[t+1]||(this.styles[t+1]={});var i=this.styles[t][n-1],s={};if(r)s[0]=e(i),this.styles[t+1]=s;else{for(var o in this.styles[t])parseInt(o,10)>=n&&(s[parseInt(o,10)-n]=this.styles[t][o],delete this.styles[t][o]);this.styles[t+1]=s}},insertCharStyleObject:function(t,n,r){var i=this.styles[t],s=e(i);n===0&&!r&&(n=1);for(var o in s){var u=parseInt(o,10);u>=n&&(i[u+1]=s[u])}this.styles[t][n]=r||e(i[n-1])},insertStyleObjects:function(e,t,n){if(this.isEmptyStyles())return;var r=this.get2DCursorLocation(),i=r.lineIndex,s=r.charIndex;this.styles[i]||(this.styles[i]={}),e==="\n"?this.insertNewlineStyleObject(i,s,t):n?this._insertStyles(n):this.insertCharStyleObject(i,s)},_insertStyles:function(e){for(var t=0,n=e.length;t<n;t++){var r=this.get2DCursorLocation(this.selectionStart+t),i=r.lineIndex,s=r.charIndex;this.insertCharStyleObject(i,s,e[t])}},shiftLineStyles:function(t,n){var r=e(this.styles);for(var i in this.styles){var s=parseInt(i,10);s>t&&(this.styles[s+n]=r[s])}},removeStyleObject:function(t,n){var r=this.get2DCursorLocation(n),i=r.lineIndex,s=r.charIndex;if(t){var o=this.text.split(this._reNewline),u=o[i-1],a=u?u.length:0;this.styles[i-1]||(this.styles[i-1]={});for(s in this.styles[i])this.styles[i-1][parseInt(s,10)+a]=this.styles[i][s];this.shiftLineStyles(i,-1)}else{var f=this.styles[i];if(f){var l=this.selectionStart===this.selectionEnd?-1:0;delete f[s+l]}var c=e(f);for(var h in c){var p=parseInt(h,10);p>=s&&p!==0&&(f[p-1]=c[p],delete f[p])}}},insertNewline:function(){this.insertChars("\n")}})}(),fabric.util.object.extend(fabric.IText.prototype,{initDoubleClickSimulation:function(){this.__lastClickTime=+(new Date),this.__lastLastClickTime=+(new Date),this.__lastPointer={},this.on("mousedown",this.onMouseDown.bind(this))},onMouseDown:function(e){this.__newClickTime=+(new Date);var t=this.canvas.getPointer(e.e);this.isTripleClick(t)?(this.fire("tripleclick",e),this._stopEvent(e.e)):this.isDoubleClick(t)&&(this.fire("dblclick",e),this._stopEvent(e.e)),this.__lastLastClickTime=this.__lastClickTime,this.__lastClickTime=this.__newClickTime,this.__lastPointer=t,this.__lastIsEditing=this.isEditing,this.__lastSelected=this.selected},isDoubleClick:function(e){return this.__newClickTime-this.__lastClickTime<500&&this.__lastPointer.x===e.x&&this.__lastPointer.y===e.y&&this.__lastIsEditing},isTripleClick:function(e){return this.__newClickTime-this.__lastClickTime<500&&this.__lastClickTime-this.__lastLastClickTime<500&&this.__lastPointer.x===e.x&&this.__lastPointer.y===e.y},_stopEvent:function(e){e.preventDefault&&e.preventDefault(),e.stopPropagation&&e.stopPropagation()},initCursorSelectionHandlers:function(){this.initSelectedHandler(),this.initMousedownHandler(),this.initMousemoveHandler(),this.initMouseupHandler(),this.initClicks()},initClicks:function(){this.on("dblclick",function(e){this.selectWord(this.getSelectionStartFromPointer(e.e))}),this.on("tripleclick",function(e){this.selectLine(this.getSelectionStartFromPointer(e.e))})},initMousedownHandler:function(){this.on("mousedown",function(e){var t=this.canvas.getPointer(e.e);this.__mousedownX=t.x,this.__mousedownY=t.y,this.__isMousedown=!0,this.hiddenTextarea&&this.canvas&&this.canvas.wrapperEl.appendChild(this.hiddenTextarea),this.selected&&this.setCursorByClick(e.e),this.isEditing&&(this.__selectionStartOnMouseDown=this.selectionStart,this.initDelayedCursor(!0))})},initMousemoveHandler:function(){this.on("mousemove",function(e){if(!this.__isMousedown||!this.isEditing)return;var t=this.getSelectionStartFromPointer(e.e);t>=this.__selectionStartOnMouseDown?(this.setSelectionStart(this.__selectionStartOnMouseDown),this.setSelectionEnd(t)):(this.setSelectionStart(t),this.setSelectionEnd(this.__selectionStartOnMouseDown))})},_isObjectMoved:function(e){var t=this.canvas.getPointer(e);return this.__mousedownX!==t.x||this.__mousedownY!==t.y},initMouseupHandler:function(){this.on("mouseup",function(e){this.__isMousedown=!1;if(this._isObjectMoved(e.e))return;this.__lastSelected&&(this.enterEditing(),this.initDelayedCursor(!0)),this.selected=!0})},setCursorByClick:function(e){var t=this.getSelectionStartFromPointer(e);e.shiftKey?t<this.selectionStart?(this.setSelectionEnd(this.selectionStart),this.setSelectionStart(t)):this.setSelectionEnd(t):(this.setSelectionStart(t),this.setSelectionEnd(t))},_getLocalRotatedPointer:function(e){var t=this.canvas.getPointer(e),n=new fabric.Point(t.x,t.y),r=new fabric.Point(this.left,this.top),i=fabric.util.rotatePoint(n,r,fabric.util.degreesToRadians(-this.angle));return this.getLocalPointer(e,i)},getSelectionStartFromPointer:function(e){var t=this._getLocalRotatedPointer(e),n=this.text.split(this._reNewline),r=0,i=0,s=0,o=0,u;for(var a=0,f=n.length;a<f;a++){s+=this._getHeightOfLine(this.ctx,a)*this.scaleY;var l=this._getWidthOfLine(this.ctx,a,n),c=this._getLineLeftOffset(l);i=c*this.scaleX,this.flipX&&(n[a]=n[a].split("").reverse().join(""));for(var h=0,p=n[a].length;h<p;h++){var d=n[a][h];r=i,i+=this._getWidthOfChar(this.ctx,d,a,this.flipX?p-h:h)*this.scaleX;if(s<=t.y||i<=t.x){o++;continue}return this._getNewSelectionStartFromOffset(t,r,i,o+a,p)}if(t.y<s)return this._getNewSelectionStartFromOffset(t,r,i,o+a,p,h)}if(typeof u=="undefined")return this.text.length},_getNewSelectionStartFromOffset:function(e,t,n,r,i,s){var o=e.x-t,u=n-e.x,a=u>o?0:1,f=r+a;return this.flipX&&(f=i-f),f>this.text.length&&(f=this.text.length),s===i&&f--,f}}),fabric.util.object.extend(fabric.IText.prototype,{initHiddenTextarea:function(){this.hiddenTextarea=fabric.document.createElement("textarea"),this.hiddenTextarea.setAttribute("autocapitalize","off"),this.hiddenTextarea.style.cssText="position: absolute; top: 0; left: -9999px",fabric.document.body.appendChild(this.hiddenTextarea),fabric.util.addListener(this.hiddenTextarea,"keydown",this.onKeyDown.bind(this)),fabric.util.addListener(this.hiddenTextarea,"keypress",this.onKeyPress.bind(this)),fabric.util.addListener(this.hiddenTextarea,"copy",this.copy.bind(this)),fabric.util.addListener(this.hiddenTextarea,"paste",this.paste.bind(this)),!this._clickHandlerInitialized&&this.canvas&&(fabric.util.addListener(this.canvas.upperCanvasEl,"click",this.onClick.bind(this)),this._clickHandlerInitialized=!0)},_keysMap:{8:"removeChars",13:"insertNewline",37:"moveCursorLeft",38:"moveCursorUp",39:"moveCursorRight",40:"moveCursorDown",46:"forwardDelete"},_ctrlKeysMap:{65:"selectAll",88:"cut"},onClick:function(){this.hiddenTextarea&&this.hiddenTextarea.focus()},onKeyDown:function(e){if(!this.isEditing)return;if(e.keyCode in this._keysMap)this[this._keysMap[e.keyCode]](e);else{if(!(e.keyCode in this._ctrlKeysMap&&(e.ctrlKey||e.metaKey)))return;this[this._ctrlKeysMap[e.keyCode]](e)}e.stopPropagation(),this.canvas&&this.canvas.renderAll()},forwardDelete:function(e){this.selectionStart===this.selectionEnd&&this.moveCursorRight(e),this.removeChars(e)},copy:function(e){var t=this.getSelectedText(),n=this._getClipboardData(e);n&&n.setData("text",t),this.copiedText=t,this.copiedStyles=this.getSelectionStyles(this.selectionStart,this.selectionEnd)},paste:function(e){var t=null,n=this._getClipboardData(e);n?t=n.getData("text"):t=this.copiedText,t&&this.insertChars(t)},cut:function(e){if(this.selectionStart===this.selectionEnd)return;this.copy(),this.removeChars(e)},_getClipboardData:function(e){return e&&(e.clipboardData||fabric.window.clipboardData)},onKeyPress:function(e){if(!this.isEditing||e.metaKey||e.ctrlKey||e.keyCode===8||e.keyCode===13)return;this.insertChars(String.fromCharCode(e.which)),e.stopPropagation()},getDownCursorOffset:function(e,t){var n=t?this.selectionEnd:this.selectionStart,r=this.text.split(this._reNewline),i,s,o=this.text.slice(0,n),u=this.text.slice(n),a=o.slice(o.lastIndexOf("\n")+1),f=u.match(/(.*)\n?/)[1],l=(u.match(/.*\n(.*)\n?/)||{})[1]||"",c=this.get2DCursorLocation(n);if(c.lineIndex===r.length-1||e.metaKey)return this.text.length-n;var h=this._getWidthOfLine(this.ctx,c.lineIndex,r);s=this._getLineLeftOffset(h);var p=s,d=c.lineIndex;for(var v=0,m=a.length;v<m;v++)i=a[v],p+=this._getWidthOfChar(this.ctx,i,d,v);var g=this._getIndexOnNextLine(c,l,p,r);return f.length+1+g},_getIndexOnNextLine:function(e,t,n,r){var i=e.lineIndex+1,s=this._getWidthOfLine(this.ctx,i,r),o=this._getLineLeftOffset(s),u=o,a=0,f;for(var l=0,c=t.length;l<c;l++){var h=t[l],p=this._getWidthOfChar(this.ctx,h,i,l);u+=p;if(u>n){f=!0;var d=u-p,v=u,m=Math.abs(d-n),g=Math.abs(v-n);a=g<m?l+1:l;break}}return f||(a=t.length),a},moveCursorDown:function(e){this.abortCursorAnimation(),this._currentCursorOpacity=1;var t=this.getDownCursorOffset(e,this._selectionDirection==="right");e.shiftKey?this.moveCursorDownWithShift(t):this.moveCursorDownWithoutShift(t),this.initDelayedCursor()},moveCursorDownWithoutShift:function(e){this._selectionDirection="right",this.selectionStart+=e,this.selectionStart>this.text.length&&(this.selectionStart=this.text.length),this.selectionEnd=this.selectionStart},moveCursorDownWithShift:function(e){if(this._selectionDirection==="left"&&this.selectionStart!==this.selectionEnd){this.selectionStart+=e,this._selectionDirection="left";return}this._selectionDirection="right",this.selectionEnd+=e,this.selectionEnd>this.text.length&&(this.selectionEnd=this.text.length)},getUpCursorOffset:function(e,t){var n=t?this.selectionEnd:this.selectionStart,r=this.get2DCursorLocation(n);if(r.lineIndex===0||e.metaKey)return n;var i=this.text.slice(0,n),s=i.slice(i.lastIndexOf("\n")+1),o=(i.match(/\n?(.*)\n.*$/)||{})[1]||"",u=this.text.split(this._reNewline),a,f=this._getWidthOfLine(this.ctx,r.lineIndex,u),l=this._getLineLeftOffset(f),c=l,h=r.lineIndex;for(var p=0,d=s.length;p<d;p++)a=s[p],c+=this._getWidthOfChar(this.ctx,a,h,p);var v=this._getIndexOnPrevLine(r,o,c,u);return o.length-v+s.length},_getIndexOnPrevLine:function(e,t,n,r){var i=e.lineIndex-1,s=this._getWidthOfLine(this.ctx,i,r),o=this._getLineLeftOffset(s),u=o,a=0,f;for(var l=0,c=t.length;l<c;l++){var h=t[l],p=this._getWidthOfChar(this.ctx,h,i,l);u+=p;if(u>n){f=!0;var d=u-p,v=u,m=Math.abs(d-n),g=Math.abs(v-n);a=g<m?l:l-1;break}}return f||(a=t.length-1),a},moveCursorUp:function(e){this.abortCursorAnimation(),this._currentCursorOpacity=1;var t=this.getUpCursorOffset(e,this._selectionDirection==="right");e.shiftKey?this.moveCursorUpWithShift(t):this.moveCursorUpWithoutShift(t),this.initDelayedCursor()},moveCursorUpWithShift:function(e){if(this.selectionStart===this.selectionEnd)this.selectionStart-=e;else{if(this._selectionDirection==="right"){this.selectionEnd-=e,this._selectionDirection="right";return}this.selectionStart-=e}this.selectionStart<0&&(this.selectionStart=0),this._selectionDirection="left"},moveCursorUpWithoutShift:function(e){this.selectionStart===this.selectionEnd&&(this.selectionStart-=e),this.selectionStart<0&&(this.selectionStart=0),this.selectionEnd=this.selectionStart,this._selectionDirection="left"},moveCursorLeft:function(e){if(this.selectionStart===0&&this.selectionEnd===0)return;this.abortCursorAnimation(),this._currentCursorOpacity=1,e.shiftKey?this.moveCursorLeftWithShift(e):this.moveCursorLeftWithoutShift(e),this.initDelayedCursor()},_move:function(e,t,n){e.altKey?this[t]=this["findWordBoundary"+n](this[t]):e.metaKey?this[t]=this["findLineBoundary"+n](this[t]):this[t]+=n==="Left"?-1:1},_moveLeft:function(e,t){this._move(e,t,"Left")},_moveRight:function(e,t){this._move(e,t,"Right")},moveCursorLeftWithoutShift:function(e){this._selectionDirection="left",this.selectionEnd===this.selectionStart&&this._moveLeft(e,"selectionStart"),this.selectionEnd=this.selectionStart},moveCursorLeftWithShift:function(e){this._selectionDirection==="right"&&this.selectionStart!==this.selectionEnd?this._moveLeft(e,"selectionEnd"):(this._selectionDirection="left",this._moveLeft(e,"selectionStart"),this.text.charAt(this.selectionStart)==="\n"&&this.selectionStart--,this.selectionStart<0&&(this.selectionStart=0))},moveCursorRight:function(e){if(this.selectionStart>=this.text.length&&this.selectionEnd>=this.text.length)return;this.abortCursorAnimation(),this._currentCursorOpacity=1,e.shiftKey?this.moveCursorRightWithShift(e):this.moveCursorRightWithoutShift(e),this.initDelayedCursor()},moveCursorRightWithShift:function(e){this._selectionDirection==="left"&&this.selectionStart!==this.selectionEnd?this._moveRight(e,"selectionStart"):(this._selectionDirection="right",this._moveRight(e,"selectionEnd"),this.text.charAt(this.selectionEnd-1)==="\n"&&this.selectionEnd++,this.selectionEnd>this.text.length&&(this.selectionEnd=this.text.length))},moveCursorRightWithoutShift:function(e){this._selectionDirection="right",this.selectionStart===this.selectionEnd?(this._moveRight(e,"selectionStart"),this.selectionEnd=this.selectionStart):(this.selectionEnd+=this.getNumNewLinesInSelectedText(),this.selectionEnd>this.text.length&&(this.selectionEnd=this.text.length),this.selectionStart=this.selectionEnd)},removeChars:function(e){this.selectionStart===this.selectionEnd?this._removeCharsNearCursor(e):this._removeCharsFromTo(this.selectionStart,this.selectionEnd),this.selectionEnd=this.selectionStart,this._removeExtraneousStyles(),this.canvas&&this.canvas.renderAll().renderAll(),this.setCoords(),this.fire("changed"),this.canvas&&this.canvas.fire("text:changed",{target:this})},_removeCharsNearCursor:function(e){if(this.selectionStart!==0)if(e.metaKey){var t=this.findLineBoundaryLeft(this.selectionStart);this._removeCharsFromTo(t,this.selectionStart),this.selectionStart=t}else if(e.altKey){var n=this.findWordBoundaryLeft(this.selectionStart);this._removeCharsFromTo(n,this.selectionStart),this.selectionStart=n}else{var r=this.text.slice(this.selectionStart-1,this.selectionStart)==="\n";this.removeStyleObject(r),this.selectionStart--,this.text=this.text.slice(0,this.selectionStart)+this.text.slice(this.selectionStart+1)}}}),fabric.util.object.extend(fabric.IText.prototype,{_setSVGTextLineText:function(e,t,n,r,i,s){this.styles[t]?this._setSVGTextLineChars(e,t,n,r,i,s):this.callSuper("_setSVGTextLineText",e,t,n,r,i)},_setSVGTextLineChars:function(e,t,n,r,i,s){var o=t===0||this.useNative?"y":"dy",u=e.split(""),a=0,f=this._getSVGLineLeftOffset(t),l=this._getSVGLineTopOffset(t),c=this._getHeightOfLine(this.ctx,t);for(var h=0,p=u.length;h<p;h++){var d=this.styles[t][h]||{};n.push(this._createTextCharSpan(u[h],d,f,l,o,a));var v=this._getWidthOfChar(this.ctx,u[h],t,h);d.textBackgroundColor&&s.push(this._createTextCharBg(d,f,l,c,v,a)),a+=v}},_getSVGLineLeftOffset:function(e){return this._boundaries&&this._boundaries[e]?fabric.util.toFixed(this._boundaries[e].left,2):0},_getSVGLineTopOffset:function(e){var t=0;for(var n=0;n<=e;n++)t+=this._getHeightOfLine(this.ctx,n);return t-this.height/2},_createTextCharBg:function(e,t,n,r,i,s){return['<rect fill="',e.textBackgroundColor,'" transform="translate(',-this.width/2," ",-this.height+r,")",'" x="',t+s,'" y="',n+r,'" width="',i,'" height="',r,'"></rect>'].join("")},_createTextCharSpan:function(e,t,n,r,i,s){var o=this.getSvgStyles.call(fabric.util.object.extend({visible:!0,fill:this.fill,stroke:this.stroke,type:"text"},t));return['<tspan x="',n+s,'" ',i,'="',r,'" ',t.fontFamily?'font-family="'+t.fontFamily.replace(/"/g,"'")+'" ':"",t.fontSize?'font-size="'+t.fontSize+'" ':"",t.fontStyle?'font-style="'+t.fontStyle+'" ':"",t.fontWeight?'font-weight="'+t.fontWeight+'" ':"",t.textDecoration?'text-decoration="'+t.textDecoration+'" ':"",'style="',o,'">',fabric.util.string.escapeXml(e),"</tspan>"].join("")}}),function(){function request(e,t,n){var r=URL.parse(e);r.port||(r.port=r.protocol.indexOf("https:")===0?443:80);var i=r.port===443?HTTPS:HTTP,s=i.request({hostname:r.hostname,port:r.port,path:r.path,method:"GET"},function(e){var r="";t&&e.setEncoding(t),e.on("end",function(){n(r)}),e.on("data",function(t){e.statusCode===200&&(r+=t)})});s.on("error",function(e){e.errno===process.ECONNREFUSED?fabric.log("ECONNREFUSED: connection refused to "+r.hostname+":"+r.port):fabric.log(e.message)}),s.end()}function requestFs(e,t){var n=require("fs");n.readFile(e,function(e,n){if(e)throw fabric.log(e),e;t(n)})}if(typeof document!="undefined"&&typeof window!="undefined")return;var DOMParser=require("xmldom").DOMParser,URL=require("url"),HTTP=require("http"),HTTPS=require("https"),Canvas=require("canvas"),Image=require("canvas").Image;fabric.util.loadImage=function(e,t,n){function r(r){i.src=new Buffer(r,"binary"),i._src=e,t&&t.call(n,i)}var i=new Image;e&&(e instanceof Buffer||e.indexOf("data")===0)?(i.src=i._src=e,t&&t.call(n,i)):e&&e.indexOf("http")!==0?requestFs(e,r):e?request(e,"binary",r):t&&t.call(n,e)},fabric.loadSVGFromURL=function(e,t,n){e=e.replace(/^\n\s*/,"").replace(/\?.*$/,"").trim(),e.indexOf("http")!==0?requestFs(e,function(e){fabric.loadSVGFromString(e.toString(),t,n)}):request(e,"",function(e){fabric.loadSVGFromString(e,t,n)})},fabric.loadSVGFromString=function(e,t,n){var r=(new DOMParser).parseFromString(e);fabric.parseSVGDocument(r.documentElement,function(e,n){t&&t(e,n)},n)},fabric.util.getScript=function(url,callback){request(url,"",function(body){eval(body),callback&&callback()})},fabric.Image.fromObject=function(e,t){fabric.util.loadImage(e.src,function(n){var r=new fabric.Image(n);r._initConfig(e),r._initFilters(e,function(e){r.filters=e||[],t&&t(r)})})},fabric.createCanvasForNode=function(e,t,n,r){r=r||n;var i=fabric.document.createElement("canvas"),s=new Canvas(e||600,t||600,r);i.style={},i.width=s.width,i.height=s.height;var o=fabric.Canvas||fabric.StaticCanvas,u=new o(i,n);return u.contextContainer=s.getContext("2d"),u.nodeCanvas=s,u.Font=Canvas.Font,u},fabric.StaticCanvas.prototype.createPNGStream=function(){return this.nodeCanvas.createPNGStream()},fabric.StaticCanvas.prototype.createJPEGStream=function(e){return this.nodeCanvas.createJPEGStream(e)};var origSetWidth=fabric.StaticCanvas.prototype.setWidth;fabric.StaticCanvas.prototype.setWidth=function(e){return origSetWidth.call(this,e),this.nodeCanvas.width=e,this},fabric.Canvas&&(fabric.Canvas.prototype.setWidth=fabric.StaticCanvas.prototype.setWidth);var origSetHeight=fabric.StaticCanvas.prototype.setHeight;fabric.StaticCanvas.prototype.setHeight=function(e){return origSetHeight.call(this,e),this.nodeCanvas.height=e,this},fabric.Canvas&&(fabric.Canvas.prototype.setHeight=fabric.StaticCanvas.prototype.setHeight)}();
\ No newline at end of file
+/* build: `node build.js modules=ALL exclude=gestures,cufon,json minifier=uglifyjs` *//*! Fabric.js Copyright 2008-2014, Printio (Juriy Zaytsev, Maxim Chernyak) */var fabric=fabric||{version:"1.4.8"};typeof exports!="undefined"&&(exports.fabric=fabric),typeof document!="undefined"&&typeof window!="undefined"?(fabric.document=document,fabric.window=window):(fabric.document=require("jsdom").jsdom("<!DOCTYPE html><html><head></head><body></body></html>"),fabric.window=fabric.document.createWindow()),fabric.isTouchSupported="ontouchstart"in fabric.document.documentElement,fabric.isLikelyNode=typeof Buffer!="undefined"&&typeof window=="undefined",fabric.SHARED_ATTRIBUTES=["display","transform","fill","fill-opacity","fill-rule","opacity","stroke","stroke-dasharray","stroke-linecap","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width"],fabric.DPI=96,function(){function e(e,t){if(!this.__eventListeners[e])return;t?fabric.util.removeFromArray(this.__eventListeners[e],t):this.__eventListeners[e].length=0}function t(e,t){this.__eventListeners||(this.__eventListeners={});if(arguments.length===1)for(var n in e)this.on(n,e[n]);else this.__eventListeners[e]||(this.__eventListeners[e]=[]),this.__eventListeners[e].push(t);return this}function n(t,n){if(!this.__eventListeners)return;if(arguments.length===0)this.__eventListeners={};else if(arguments.length===1&&typeof arguments[0]=="object")for(var r in t)e.call(this,r,t[r]);else e.call(this,t,n);return this}function r(e,t){if(!this.__eventListeners)return;var n=this.__eventListeners[e];if(!n)return;for(var r=0,i=n.length;r<i;r++)n[r].call(this,t||{});return this}fabric.Observable={observe:t,stopObserving:n,fire:r,on:t,off:n,trigger:r}}(),fabric.Collection={add:function(){this._objects.push.apply(this._objects,arguments);for(var e=0,t=arguments.length;e<t;e++)this._onObjectAdded(arguments[e]);return this.renderOnAddRemove&&this.renderAll(),this},insertAt:function(e,t,n){var r=this.getObjects();return n?r[t]=e:r.splice(t,0,e),this._onObjectAdded(e),this.renderOnAddRemove&&this.renderAll(),this},remove:function(){var e=this.getObjects(),t;for(var n=0,r=arguments.length;n<r;n++)t=e.indexOf(arguments[n]),t!==-1&&(e.splice(t,1),this._onObjectRemoved(arguments[n]));return this.renderOnAddRemove&&this.renderAll(),this},forEachObject:function(e,t){var n=this.getObjects(),r=n.length;while(r--)e.call(t,n[r],r,n);return this},getObjects:function(e){return typeof e=="undefined"?this._objects:this._objects.filter(function(t){return t.type===e})},item:function(e){return this.getObjects()[e]},isEmpty:function(){return this.getObjects().length===0},size:function(){return this.getObjects().length},contains:function(e){return this.getObjects().indexOf(e)>-1},complexity:function(){return this.getObjects().reduce(function(e,t){return e+=t.complexity?t.complexity():0,e},0)}},function(e){var t=Math.sqrt,n=Math.atan2,r=Math.PI/180;fabric.util={removeFromArray:function(e,t){var n=e.indexOf(t);return n!==-1&&e.splice(n,1),e},getRandomInt:function(e,t){return Math.floor(Math.random()*(t-e+1))+e},degreesToRadians:function(e){return e*r},radiansToDegrees:function(e){return e/r},rotatePoint:function(e,t,n){var r=Math.sin(n),i=Math.cos(n);e.subtractEquals(t);var s=e.x*i-e.y*r,o=e.x*r+e.y*i;return(new fabric.Point(s,o)).addEquals(t)},transformPoint:function(e,t,n){return n?new fabric.Point(t[0]*e.x+t[1]*e.y,t[2]*e.x+t[3]*e.y):new fabric.Point(t[0]*e.x+t[1]*e.y+t[4],t[2]*e.x+t[3]*e.y+t[5])},invertTransform:function(e){var t=e.slice(),n=1/(e[0]*e[3]-e[1]*e[2]);t=[n*e[3],-n*e[1],-n*e[2],n*e[0],0,0];var r=fabric.util.transformPoint({x:e[4],y:e[5]},t);return t[4]=-r.x,t[5]=-r.y,t},toFixed:function(e,t){return parseFloat(Number(e).toFixed(t))},parseUnit:function(e){var t=/\D{0,2}$/.exec(e),n=parseFloat(e);switch(t[0]){case"mm":return n*fabric.DPI/25.4;case"cm":return n*fabric.DPI/2.54;case"in":return n*fabric.DPI;case"pt":return n*fabric.DPI/72;case"pc":return n*fabric.DPI/72*12;default:return n}},falseFunction:function(){return!1},getKlass:function(e,t){return e=fabric.util.string.camelize(e.charAt(0).toUpperCase()+e.slice(1)),fabric.util.resolveNamespace(t)[e]},resolveNamespace:function(t){if(!t)return fabric;var n=t.split("."),r=n.length,i=e||fabric.window;for(var s=0;s<r;++s)i=i[n[s]];return i},loadImage:function(e,t,n,r){if(!e){t&&t.call(n,e);return}var i=fabric.util.createImage();i.onload=function(){t&&t.call(n,i),i=i.onload=i.onerror=null},i.onerror=function(){fabric.log("Error loading "+i.src),t&&t.call(n,null,!0),i=i.onload=i.onerror=null},e.indexOf("data")!==0&&typeof r!="undefined"&&(i.crossOrigin=r),i.src=e},enlivenObjects:function(e,t,n,r){function i(){++o===u&&t&&t(s)}e=e||[];var s=[],o=0,u=e.length;if(!u){t&&t(s);return}e.forEach(function(e,t){if(!e||!e.type){i();return}var o=fabric.util.getKlass(e.type,n);o.async?o.fromObject(e,function(n,o){o||(s[t]=n,r&&r(e,s[t])),i()}):(s[t]=o.fromObject(e),r&&r(e,s[t]),i())})},groupSVGElements:function(e,t,n){var r;return e.length>1?r=new fabric.PathGroup(e,t):r=e[0],typeof n!="undefined"&&r.setSourcePath(n),r},populateWithProperties:function(e,t,n){if(n&&Object.prototype.toString.call(n)==="[object Array]")for(var r=0,i=n.length;r<i;r++)n[r]in e&&(t[n[r]]=e[n[r]])},drawDashedLine:function(e,r,i,s,o,u){var a=s-r,f=o-i,l=t(a*a+f*f),c=n(f,a),h=u.length,p=0,d=!0;e.save(),e.translate(r,i),e.moveTo(0,0),e.rotate(c),r=0;while(l>r)r+=u[p++%h],r>l&&(r=l),e[d?"lineTo":"moveTo"](r,0),d=!d;e.restore()},createCanvasElement:function(e){return e||(e=fabric.document.createElement("canvas")),!e.getContext&&typeof G_vmlCanvasManager!="undefined"&&G_vmlCanvasManager.initElement(e),e},createImage:function(){return fabric.isLikelyNode?new(require("canvas").Image):fabric.document.createElement("img")},createAccessors:function(e){var t=e.prototype;for(var n=t.stateProperties.length;n--;){var r=t.stateProperties[n],i=r.charAt(0).toUpperCase()+r.slice(1),s="set"+i,o="get"+i;t[o]||(t[o]=function(e){return new Function('return 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c=Math.sin(s),h=Math.cos(s),p=Math.sin(o),d=Math.cos(o),v=l*u,m=-f*a,g=f*u,y=l*a,b=.25*(o-s),w=8/3*Math.sin(b)*Math.sin(b)/Math.sin(b*2),E=e+h-w*c,S=i+c+w*h,x=e+d,T=i+p,N=x+w*p,C=T-w*d;return t[r]=[v*E+m*S,g*E+y*S,v*N+m*C,g*N+y*C,v*x+m*T,g*x+y*T],t[r]}var e={},t={},n=Array.prototype.join,r;fabric.util.drawArc=function(e,t,n,r){var s=r[0],u=r[1],a=r[2],f=r[3],l=r[4],c=r[5],h=r[6],p=i(c,h,s,u,f,l,a,t,n);for(var d=0;d<p.length;d++){var v=o.apply(this,p[d]);e.bezierCurveTo.apply(e,v)}}}(),function(){function t(t,n){var r=e.call(arguments,2),i=[];for(var s=0,o=t.length;s<o;s++)i[s]=r.length?t[s][n].apply(t[s],r):t[s][n].call(t[s]);return i}function n(e,t){return i(e,t,function(e,t){return e>=t})}function r(e,t){return i(e,t,function(e,t){return e<t})}function i(e,t,n){if(!e||e.length===0)return;var r=e.length-1,i=t?e[r][t]:e[r];if(t)while(r--)n(e[r][t],i)&&(i=e[r][t]);else while(r--)n(e[r],i)&&(i=e[r]);return i}var e=Array.prototype.slice;Array.prototype.indexOf||(Array.prototype.indexOf=function(e){if(this===void 0||this===null)throw new TypeError;var t=Object(this),n=t.length>>>0;if(n===0)return-1;var r=0;arguments.length>0&&(r=Number(arguments[1]),r!==r?r=0:r!==0&&r!==Number.POSITIVE_INFINITY&&r!==Number.NEGATIVE_INFINITY&&(r=(r>0||-1)*Math.floor(Math.abs(r))));if(r>=n)return-1;var i=r>=0?r:Math.max(n-Math.abs(r),0);for(;i<n;i++)if(i in t&&t[i]===e)return i;return-1}),Array.prototype.forEach||(Array.prototype.forEach=function(e,t){for(var n=0,r=this.length>>>0;n<r;n++)n in this&&e.call(t,this[n],n,this)}),Array.prototype.map||(Array.prototype.map=function(e,t){var n=[];for(var r=0,i=this.length>>>0;r<i;r++)r in this&&(n[r]=e.call(t,this[r],r,this));return n}),Array.prototype.every||(Array.prototype.every=function(e,t){for(var n=0,r=this.length>>>0;n<r;n++)if(n in this&&!e.call(t,this[n],n,this))return!1;return!0}),Array.prototype.some||(Array.prototype.some=function(e,t){for(var n=0,r=this.length>>>0;n<r;n++)if(n in this&&e.call(t,this[n],n,this))return!0;return!1}),Array.prototype.filter||(Array.prototype.filter=function(e,t){var n=[],r;for(var i=0,s=this.length>>>0;i<s;i++)i in this&&(r=this[i],e.call(t,r,i,this)&&n.push(r));return n}),Array.prototype.reduce||(Array.prototype.reduce=function(e){var t=this.length>>>0,n=0,r;if(arguments.length>1)r=arguments[1];else do{if(n in this){r=this[n++];break}if(++n>=t)throw new TypeError}while(!0);for(;n<t;n++)n in this&&(r=e.call(null,r,this[n],n,this));return r}),fabric.util.array={invoke:t,min:r,max:n}}(),function(){function e(e,t){for(var n in t)e[n]=t[n];return e}function t(t){return e({},t)}fabric.util.object={extend:e,clone:t}}(),function(){function e(e){return e.replace(/-+(.)?/g,function(e,t){return t?t.toUpperCase():""})}function t(e,t){return e.charAt(0).toUpperCase()+(t?e.slice(1):e.slice(1).toLowerCase())}function n(e){return 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t=Array.prototype.slice.call(arguments,1),n,r,i=t.length;for(r=0;r<i;r++){n=typeof e[t[r]];if(!/^(?:function|object|unknown)$/.test(n))return!1}return!0}function s(e,t){return{handler:t,wrappedHandler:o(e,t)}}function o(e,t){return function(r){t.call(n(e),r||fabric.window.event)}}function u(e,t){return function(n){if(c[e]&&c[e][t]){var r=c[e][t];for(var i=0,s=r.length;i<s;i++)r[i].call(this,n||fabric.window.event)}}}function d(t,n){t||(t=fabric.window.event);var r=t.target||(typeof t.srcElement!==e?t.srcElement:null),i=fabric.util.getScrollLeftTop(r,n);return{x:v(t)+i.left,y:m(t)+i.top}}function g(e,t,n){var r=e.type==="touchend"?"changedTouches":"touches";return e[r]&&e[r][0]?e[r][0][t]-(e[r][0][t]-e[r][0][n])||e[n]:e[n]}var e="unknown",n,r,i=function(){var e=0;return function(t){return t.__uniqueID||(t.__uniqueID="uniqueID__"+e++)}}();(function(){var e={};n=function(t){return e[t]},r=function(t,n){e[t]=n}})();var 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t=e.getElementsByTagName("linearGradient"),n=e.getElementsByTagName("radialGradient"),r,i,s={};i=t.length;for(;i--;)r=t[i],s[r.getAttribute("id")]=r;i=n.length;for(;i--;)r=n[i],s[r.getAttribute("id")]=r;return s},parseAttributes:function(e,r){if(!e)return;var i,s={};e.parentNode&&/^g$/i.test(e.parentNode.nodeName)&&(s=t.parseAttributes(e.parentNode,r));var o=r.reduce(function(t,n){return i=e.getAttribute(n),i&&(n=l(n),i=c(n,i,s),t[n]=i),t},{});return o=n(o,n(m(e),t.parseStyleAttribute(e))),h(n(s,o))},parseElements:function(e,n,r,i){(new t.ElementsParser(e,n,r,i)).parse()},parseStyleAttribute:function(e){var t={},n=e.getAttribute("style");return n?(typeof n=="string"?d(n,t):v(n,t),t):t},parsePointsAttribute:function(e){if(!e)return null;e=e.replace(/,/g," ").trim(),e=e.split(/\s+/);var t=[],n,r;n=0,r=e.length;for(;n<r;n+=2)t.push({x:parseFloat(e[n]),y:parseFloat(e[n+1])});return t},getCSSRules:function(e){var t=e.getElementsByTagName("style"),n={},r;for(var i=0,s=t.length;i<s;i++){var o=t[0].textContent;o=o.replace(/\/\*[\s\S]*?\*\//g,""),r=o.match(/[^{]*\{[\s\S]*?\}/g),r=r.map(function(e){return e.trim()}),r.forEach(function(e){var t=e.match(/([\s\S]*?)\s*\{([^}]*)\}/);e=t[1];var r=t[2].trim(),i=r.replace(/;$/,"").split(/\s*;\s*/);n[e]||(n[e]={});for(var s=0,o=i.length;s<o;s++){var u=i[s].split(/\s*:\s*/),a=u[0],f=u[1];n[e][a]=f}})}return n},loadSVGFromURL:function(e,n,r){function i(i){var s=i.responseXML;s&&!s.documentElement&&t.window.ActiveXObject&&i.responseText&&(s=new ActiveXObject("Microsoft.XMLDOM"),s.async="false",s.loadXML(i.responseText.replace(/<!DOCTYPE[\s\S]*?(\[[\s\S]*\])*?>/i,"")));if(!s||!s.documentElement)return;t.parseSVGDocument(s.documentElement,function(r,i){y.set(e,{objects:t.util.array.invoke(r,"toObject"),options:i}),n(r,i)},r)}e=e.replace(/^\n\s*/,"").trim(),y.has(e,function(r){r?y.get(e,function(e){var t=b(e);n(t.objects,t.options)}):new t.util.request(e,{method:"get",onComplete:i})})},loadSVGFromString:function(e,n,r){e=e.trim();var i;if(typeof DOMParser!="undefined"){var s=new DOMParser;s&&s.parseFromString&&(i=s.parseFromString(e,"text/xml"))}else t.window.ActiveXObject&&(i=new ActiveXObject("Microsoft.XMLDOM"),i.async="false",i.loadXML(e.replace(/<!DOCTYPE[\s\S]*?(\[[\s\S]*\])*?>/i,"")));t.parseSVGDocument(i.documentElement,function(e,t){n(e,t)},r)},createSVGFontFacesMarkup:function(e){var t="";for(var n=0,r=e.length;n<r;n++){if(e[n].type!=="text"||!e[n].path)continue;
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this.checkIfDone()},fabric.ElementsParser.prototype._createObject=function(e,t,n){if(e.async)e.fromElement(t,this.createCallback(n,t),this.options);else{var r=e.fromElement(t,this.options);this.reviver&&this.reviver(t,r),this.instances.splice(n,0,r),this.checkIfDone()}},fabric.ElementsParser.prototype.createCallback=function(e,t){var n=this;return function(r){n.reviver&&n.reviver(t,r),n.instances.splice(e,0,r),n.checkIfDone()}},fabric.ElementsParser.prototype.checkIfDone=function(){--this.numElements===0&&(this.instances=this.instances.filter(function(e){return e!=null}),fabric.resolveGradients(this.instances),this.callback(this.instances))},function(e){"use strict";function n(e,t){this.x=e,this.y=t}var t=e.fabric||(e.fabric={});if(t.Point){t.warn("fabric.Point is already defined");return}t.Point=n,n.prototype={constructor:n,add:function(e){return new n(this.x+e.x,this.y+e.y)},addEquals:function(e){return this.x+=e.x,this.y+=e.y,this},scalarAdd:function(e){return new n(this.x+e,this.y+e)},scalarAddEquals:function(e){return this.x+=e,this.y+=e,this},subtract:function(e){return new n(this.x-e.x,this.y-e.y)},subtractEquals:function(e){return this.x-=e.x,this.y-=e.y,this},scalarSubtract:function(e){return new n(this.x-e,this.y-e)},scalarSubtractEquals:function(e){return this.x-=e,this.y-=e,this},multiply:function(e){return new n(this.x*e,this.y*e)},multiplyEquals:function(e){return this.x*=e,this.y*=e,this},divide:function(e){return new n(this.x/e,this.y/e)},divideEquals:function(e){return this.x/=e,this.y/=e,this},eq:function(e){return this.x===e.x&&this.y===e.y},lt:function(e){return this.x<e.x&&this.y<e.y},lte:function(e){return this.x<=e.x&&this.y<=e.y},gt:function(e){return this.x>e.x&&this.y>e.y},gte:function(e){return this.x>=e.x&&this.y>=e.y},lerp:function(e,t){return new n(this.x+(e.x-this.x)*t,this.y+(e.y-this.y)*t)},distanceFrom:function(e){var t=this.x-e.x,n=this.y-e.y;return Math.sqrt(t*t+n*n)},midPointFrom:function(e){return new n(this.x+(e.x-this.x)/2,this.y+(e.y-this.y)/2)},min:function(e){return new n(Math.min(this.x,e.x),Math.min(this.y,e.y))},max:function(e){return new n(Math.max(this.x,e.x),Math.max(this.y,e.y))},toString:function(){return this.x+","+this.y},setXY:function(e,t){this.x=e,this.y=t},setFromPoint:function(e){this.x=e.x,this.y=e.y},swap:function(e){var t=this.x,n=this.y;this.x=e.x,this.y=e.y,e.x=t,e.y=n}}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function n(e){this.status=e,this.points=[]}var t=e.fabric||(e.fabric={});if(t.Intersection){t.warn("fabric.Intersection is already defined");return}t.Intersection=n,t.Intersection.prototype={appendPoint:function(e){this.points.push(e)},appendPoints:function(e){this.points=this.points.concat(e)}},t.Intersection.intersectLineLine=function(e,r,i,s){var o,u=(s.x-i.x)*(e.y-i.y)-(s.y-i.y)*(e.x-i.x),a=(r.x-e.x)*(e.y-i.y)-(r.y-e.y)*(e.x-i.x),f=(s.y-i.y)*(r.x-e.x)-(s.x-i.x)*(r.y-e.y);if(f!==0){var l=u/f,c=a/f;0<=l&&l<=1&&0<=c&&c<=1?(o=new n("Intersection"),o.points.push(new t.Point(e.x+l*(r.x-e.x),e.y+l*(r.y-e.y)))):o=new n}else u===0||a===0?o=new n("Coincident"):o=new n("Parallel");return o},t.Intersection.intersectLinePolygon=function(e,t,r){var i=new n,s=r.length;for(var o=0;o<s;o++){var u=r[o],a=r[(o+1)%s],f=n.intersectLineLine(e,t,u,a);i.appendPoints(f.points)}return i.points.length>0&&(i.status="Intersection"),i},t.Intersection.intersectPolygonPolygon=function(e,t){var r=new n,i=e.length;for(var s=0;s<i;s++){var o=e[s],u=e[(s+1)%i],a=n.intersectLinePolygon(o,u,t);r.appendPoints(a.points)}return r.points.length>0&&(r.status="Intersection"),r},t.Intersection.intersectPolygonRectangle=function(e,r,i){var s=r.min(i),o=r.max(i),u=new t.Point(o.x,s.y),a=new t.Point(s.x,o.y),f=n.intersectLinePolygon(s,u,e),l=n.intersectLinePolygon(u,o,e),c=n.intersectLinePolygon(o,a,e),h=n.intersectLinePolygon(a,s,e),p=new n;return p.appendPoints(f.points),p.appendPoints(l.points),p.appendPoints(c.points),p.appendPoints(h.points),p.points.length>0&&(p.status="Intersection"),p}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function n(e){e?this._tryParsingColor(e):this.setSource([0,0,0,1])}function r(e,t,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?e+(t-e)*6*n:n<.5?t:n<2/3?e+(t-e)*(2/3-n)*6:e}var t=e.fabric||(e.fabric={});if(t.Color){t.warn("fabric.Color is already defined.");return}t.Color=n,t.Color.prototype={_tryParsingColor:function(e){var t;e in n.colorNameMap&&(e=n.colorNameMap[e]);if(e==="transparent"){this.setSource([255,255,255,0]);return}t=n.sourceFromHex(e),t||(t=n.sourceFromRgb(e)),t||(t=n.sourceFromHsl(e)),t&&this.setSource(t)},_rgbToHsl:function(e,n,r){e/=255,n/=255,r/=255;var i,s,o,u=t.util.array.max([e,n,r]),a=t.util.array.min([e,n,r]);o=(u+a)/2;if(u===a)i=s=0;else{var f=u-a;s=o>.5?f/(2-u-a):f/(u+a);switch(u){case e:i=(n-r)/f+(n<r?6:0);break;case n:i=(r-e)/f+2;break;case r:i=(e-n)/f+4}i/=6}return[Math.round(i*360),Math.round(s*100),Math.round(o*100)]},getSource:function(){return this._source},setSource:function(e){this._source=e},toRgb:function(){var e=this.getSource();return"rgb("+e[0]+","+e[1]+","+e[2]+")"},toRgba:function(){var e=this.getSource();return"rgba("+e[0]+","+e[1]+","+e[2]+","+e[3]+")"},toHsl:function(){var e=this.getSource(),t=this._rgbToHsl(e[0],e[1],e[2]);return"hsl("+t[0]+","+t[1]+"%,"+t[2]+"%)"},toHsla:function(){var e=this.getSource(),t=this._rgbToHsl(e[0],e[1],e[2]);return"hsla("+t[0]+","+t[1]+"%,"+t[2]+"%,"+e[3]+")"},toHex:function(){var e=this.getSource(),t,n,r;return t=e[0].toString(16),t=t.length===1?"0"+t:t,n=e[1].toString(16),n=n.length===1?"0"+n:n,r=e[2].toString(16),r=r.length===1?"0"+r:r,t.toUpperCase()+n.toUpperCase()+r.toUpperCase()},getAlpha:function(){return this.getSource()[3]},setAlpha:function(e){var t=this.getSource();return t[3]=e,this.setSource(t),this},toGrayscale:function(){var e=this.getSource(),t=parseInt((e[0]*.3+e[1]*.59+e[2]*.11).toFixed(0),10),n=e[3];return this.setSource([t,t,t,n]),this},toBlackWhite:function(e){var t=this.getSource(),n=(t[0]*.3+t[1]*.59+t[2]*.11).toFixed(0),r=t[3];return e=e||127,n=Number(n)<Number(e)?0:255,this.setSource([n,n,n,r]),this},overlayWith:function(e){e instanceof n||(e=new n(e));var t=[],r=this.getAlpha(),i=.5,s=this.getSource(),o=e.getSource();for(var u=0;u<3;u++)t.push(Math.round(s[u]*(1-i)+o[u]*i));return t[3]=r,this.setSource(t),this}},t.Color.reRGBa=/^rgba?\(\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/,t.Color.reHSLa=/^hsla?\(\s*(\d{1,3})\s*,\s*(\d{1,3}\%)\s*,\s*(\d{1,3}\%)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/,t.Color.reHex=/^#?([0-9a-f]{6}|[0-9a-f]{3})$/i,t.Color.colorNameMap={aqua:"#00FFFF",black:"#000000",blue:"#0000FF",fuchsia:"#FF00FF",gray:"#808080",green:"#008000",lime:"#00FF00",maroon:"#800000",navy:"#000080",olive:"#808000",orange:"#FFA500",purple:"#800080",red:"#FF0000",silver:"#C0C0C0",teal:"#008080",white:"#FFFFFF",yellow:"#FFFF00"},t.Color.fromRgb=function(e){return n.fromSource(n.sourceFromRgb(e))},t.Color.sourceFromRgb=function(e){var t=e.match(n.reRGBa);if(t){var r=parseInt(t[1],10)/(/%$/.test(t[1])?100:1)*(/%$/.test(t[1])?255:1),i=parseInt(t[2],10)/(/%$/.test(t[2])?100:1)*(/%$/.test(t[2])?255:1),s=parseInt(t[3],10)/(/%$/.test(t[3])?100:1)*(/%$/.test(t[3])?255:1);return[parseInt(r,10),parseInt(i,10),parseInt(s,10),t[4]?parseFloat(t[4]):1]}},t.Color.fromRgba=n.fromRgb,t.Color.fromHsl=function(e){return n.fromSource(n.sourceFromHsl(e))},t.Color.sourceFromHsl=function(e){var t=e.match(n.reHSLa);if(!t)return;var i=(parseFloat(t[1])%360+360)%360/360,s=parseFloat(t[2])/(/%$/.test(t[2])?100:1),o=parseFloat(t[3])/(/%$/.test(t[3])?100:1),u,a,f;if(s===0)u=a=f=o;else{var l=o<=.5?o*(s+1):o+s-o*s,c=o*2-l;u=r(c,l,i+1/3),a=r(c,l,i),f=r(c,l,i-1/3)}return[Math.round(u*255),Math.round(a*255),Math.round(f*255),t[4]?parseFloat(t[4]):1]},t.Color.fromHsla=n.fromHsl,t.Color.fromHex=function(e){return n.fromSource(n.sourceFromHex(e))},t.Color.sourceFromHex=function(e){if(e.match(n.reHex)){var t=e.slice(e.indexOf("#")+1),r=t.length===3,i=r?t.charAt(0)+t.charAt(0):t.substring(0,2),s=r?t.charAt(1)+t.charAt(1):t.substring(2,4),o=r?t.charAt(2)+t.charAt(2):t.substring(4,6);return[parseInt(i,16),parseInt(s,16),parseInt(o,16),1]}},t.Color.fromSource=function(e){var t=new n;return t.setSource(e),t}}(typeof exports!="undefined"?exports:this),function(){function e(e){var t=e.getAttribute("style"),n=e.getAttribute("offset"),r,i;n=parseFloat(n)/(/%$/.test(n)?100:1);if(t){var s=t.split(/\s*;\s*/);s[s.length-1]===""&&s.pop();for(var o=s.length;o--;){var u=s[o].split(/\s*:\s*/),a=u[0].trim(),f=u[1].trim();a==="stop-color"?r=f:a==="stop-opacity"&&(i=f)}}return r||(r=e.getAttribute("stop-color")||"rgb(0,0,0)"),i||(i=e.getAttribute("stop-opacity")),r=(new fabric.Color(r)).toRgb(),{offset:n,color:r,opacity:isNaN(parseFloat(i))?1:parseFloat(i)}}function t(e){return{x1:e.getAttribute("x1")||0,y1:e.getAttribute("y1")||0,x2:e.getAttribute("x2")||"100%",y2:e.getAttribute("y2")||0}}function n(e){return{x1:e.getAttribute("fx")||e.getAttribute("cx")||"50%",y1:e.getAttribute("fy")||e.getAttribute("cy")||"50%",r1:0,x2:e.getAttribute("cx")||"50%",y2:e.getAttribute("cy")||"50%",r2:e.getAttribute("r")||"50%"}}function r(e,t){for(var n in t){if(typeof t[n]=="string"&&/^\d+%$/.test(t[n])){var r=parseFloat(t[n],10);if(n==="x1"||n==="x2"||n==="r2")t[n]=fabric.util.toFixed(e.width*r/100,2);else if(n==="y1"||n==="y2")t[n]=fabric.util.toFixed(e.height*r/100,2)}i(t,n,e)}}function i(e,t,n){if(t==="x1"||t==="x2")e[t]-=fabric.util.toFixed(n.width/2,2);else if(t==="y1"||t==="y2")e[t]-=fabric.util.toFixed(n.height/2,2)}function s(e,t){for(var n in t){i(t,n,e);if(n==="x1"||n==="x2"||n==="r2")t[n]=fabric.util.toFixed(t[n]/e.width*100,2)+"%";else if(n==="y1"||n==="y2")t[n]=fabric.util.toFixed(t[n]/e.height*100,2)+"%"}}fabric.Gradient=fabric.util.createClass({initialize:function(e){e||(e={});var t={};this.id=fabric.Object.__uid++,this.type=e.type||"linear",t={x1:e.coords.x1||0,y1:e.coords.y1||0,x2:e.coords.x2||0,y2:e.coords.y2||0},this.type==="radial"&&(t.r1=e.coords.r1||0,t.r2=e.coords.r2||0),this.coords=t,this.gradientUnits=e.gradientUnits||"objectBoundingBox",this.colorStops=e.colorStops.slice()},addColorStop:function(e){for(var t in e){var n=new fabric.Color(e[t]);this.colorStops.push({offset:t,color:n.toRgb(),opacity:n.getAlpha()})}return this},toObject:function(){return{type:this.type,coords:this.coords,gradientUnits:this.gradientUnits,colorStops:this.colorStops}},toSVG:function(e,t){var n=fabric.util.object.clone(this.coords),r;this.colorStops.sort(function(e,t){return e.offset-t.offset}),t&&this.gradientUnits==="userSpaceOnUse"?(n.x1+=e.width/2,n.y1+=e.height/2,n.x2+=e.width/2,n.y2+=e.height/2):this.gradientUnits==="objectBoundingBox"&&s(e,n),this.type==="linear"?r=["<linearGradient ",'id="SVGID_',this.id,'" gradientUnits="',this.gradientUnits,'" x1="',n.x1,'" y1="',n.y1,'" x2="',n.x2,'" y2="',n.y2,'">']:this.type==="radial"&&(r=["<radialGradient ",'id="SVGID_',this.id,'" gradientUnits="',this.gradientUnits,'" cx="',n.x2,'" cy="',n.y2,'" r="',n.r2,'" fx="',n.x1,'" fy="',n.y1,'">']);for(var i=0;i<this.colorStops.length;i++)r.push("<stop ",'offset="',this.colorStops[i].offset*100+"%",'" style="stop-color:',this.colorStops[i].color,this.colorStops[i].opacity?";stop-opacity: "+this.colorStops[i].opacity:";",'"/>');return r.push(this.type==="linear"?"</linearGradient>":"</radialGradient>"),r.join("")},toLive:function(e){var t;if(!this.type)return;this.type==="linear"?t=e.createLinearGradient(this.coords.x1,this.coords.y1,this.coords.x2,this.coords.y2):this.type==="radial"&&(t=e.createRadialGradient(this.coords.x1,this.coords.y1,this.coords.r1,this.coords.x2,this.coords.y2,this.coords.r2));for(var n=0,r=this.colorStops.length;n<r;n++){var i=this.colorStops[n].color,s=this.colorStops[n].opacity,o=this.colorStops[n].offset;typeof s!="undefined"&&(i=(new fabric.Color(i)).setAlpha(s).toRgba()),t.addColorStop(parseFloat(o),i)}return t}}),fabric.util.object.extend(fabric.Gradient,{fromElement:function(i,s){var o=i.getElementsByTagName("stop"),u=i.nodeName==="linearGradient"?"linear":"radial",a=i.getAttribute("gradientUnits")||"objectBoundingBox",f=[],l={};u==="linear"?l=t(i):u==="radial"&&(l=n(i));for(var c=o.length;c--;)f.push(e(o[c]));return r(s,l),new fabric.Gradient({type:u,coords:l,gradientUnits:a,colorStops:f})},forObject:function(e,t){return t||(t={}),r(e,t),new fabric.Gradient(t)}})}(),fabric.Pattern=fabric.util.createClass({repeat:"repeat",offsetX:0,offsetY:0,initialize:function(e){e||(e={}),this.id=fabric.Object.__uid++;if(e.source)if(typeof e.source=="string")if(typeof fabric.util.getFunctionBody(e.source)!="undefined")this.source=new Function(fabric.util.getFunctionBody(e.source));else{var t=this;this.source=fabric.util.createImage(),fabric.util.loadImage(e.source,function(e){t.source=e})}else this.source=e.source;e.repeat&&(this.repeat=e.repeat),e.offsetX&&(this.offsetX=e.offsetX),e.offsetY&&(this.offsetY=e.offsetY)},toObject:function(){var e;return typeof this.source=="function"?e=String(this.source):typeof this.source.src=="string"&&(e=this.source.src),{source:e,repeat:this.repeat,offsetX:this.offsetX,offsetY:this.offsetY}},toSVG:function(e){var t=typeof this.source=="function"?this.source():this.source,n=t.width/e.getWidth(),r=t.height/e.getHeight(),i="";return t.src?i=t.src:t.toDataURL&&(i=t.toDataURL()),'<pattern id="SVGID_'+this.id+'" x="'+this.offsetX+'" y="'+this.offsetY+'" width="'+n+'" height="'+r+'">'+'<image x="0" y="0"'+' width="'+t.width+'" height="'+t.height+'" xlink:href="'+i+'"></image>'+"</pattern>"},toLive:function(e){var t=typeof this.source=="function"?this.source():this.source;if(!t)return"";if(typeof t.src!="undefined"){if(!t.complete)return"";if(t.naturalWidth===0||t.naturalHeight===0)return""}return e.createPattern(t,this.repeat)}}),function(e){"use strict";var t=e.fabric||(e.fabric={});if(t.Shadow){t.warn("fabric.Shadow is already defined.");return}t.Shadow=t.util.createClass({color:"rgb(0,0,0)",blur:0,offsetX:0,offsetY:0,affectStroke:!1,includeDefaultValues:!0,initialize:function(e){typeof e=="string"&&(e=this._parseShadow(e));for(var n in e)this[n]=e[n];this.id=t.Object.__uid++},_parseShadow:function(e){var n=e.trim(),r=t.Shadow.reOffsetsAndBlur.exec(n)||[],i=n.replace(t.Shadow.reOffsetsAndBlur,"")||"rgb(0,0,0)";return{color:i.trim(),offsetX:parseInt(r[1],10)||0,offsetY:parseInt(r[2],10)||0,blur:parseInt(r[3],10)||0}},toString:function(){return[this.offsetX,this.offsetY,this.blur,this.color].join("px ")},toSVG:function(e){var t="SourceAlpha";return e&&(e.fill===this.color||e.stroke===this.color)&&(t="SourceGraphic"),'<filter id="SVGID_'+this.id+'" y="-40%" height="180%">'+'<feGaussianBlur in="'+t+'" stdDeviation="'+(this.blur?this.blur/3:0)+'"></feGaussianBlur>'+'<feOffset dx="'+this.offsetX+'" dy="'+this.offsetY+'"></feOffset>'+"<feMerge>"+"<feMergeNode></feMergeNode>"+'<feMergeNode in="SourceGraphic"></feMergeNode>'+"</feMerge>"+"</filter>"},toObject:function(){if(this.includeDefaultValues)return{color:this.color,blur:this.blur,offsetX:this.offsetX,offsetY:this.offsetY};var e={},n=t.Shadow.prototype;return this.color!==n.color&&(e.color=this.color),this.blur!==n.blur&&(e.blur=this.blur),this.offsetX!==n.offsetX&&(e.offsetX=this.offsetX),this.offsetY!==n.offsetY&&(e.offsetY=this.offsetY),e}}),t.Shadow.reOffsetsAndBlur=/(?:\s|^)(-?\d+(?:px)?(?:\s?|$))?(-?\d+(?:px)?(?:\s?|$))?(\d+(?:px)?)?(?:\s?|$)(?:$|\s)/}(typeof exports!="undefined"?exports:this),function(){"use strict";if(fabric.StaticCanvas){fabric.warn("fabric.StaticCanvas is already defined.");return}var e=fabric.util.object.extend,t=fabric.util.getElementOffset,n=fabric.util.removeFromArray,r=new Error("Could not initialize `canvas` element");fabric.StaticCanvas=fabric.util.createClass({initialize:function(e,t){t||(t={}),this._initStatic(e,t),fabric.StaticCanvas.activeInstance=this},backgroundColor:"",backgroundImage:null,overlayColor:"",overlayImage:null,includeDefaultValues:!0,stateful:!0,renderOnAddRemove:!0,clipTo:null,controlsAboveOverlay:!1,allowTouchScrolling:!1,imageSmoothingEnabled:!0,viewportTransform:[1,0,0,1,0,0],onBeforeScaleRotate:function(){},_initStatic:function(e,t){this._objects=[],this._createLowerCanvas(e),this._initOptions(t),this._setImageSmoothing(),t.overlayImage&&this.setOverlayImage(t.overlayImage,this.renderAll.bind(this)),t.backgroundImage&&this.setBackgroundImage(t.backgroundImage,this.renderAll.bind(this)),t.backgroundColor&&this.setBackgroundColor(t.backgroundColor,this.renderAll.bind(this)),t.overlayColor&&this.setOverlayColor(t.overlayColor,this.renderAll.bind(this)),this.calcOffset()},calcOffset:function(){return this._offset=t(this.lowerCanvasEl),this},setOverlayImage:function(e,t,n){return this.__setBgOverlayImage("overlayImage",e,t,n)},setBackgroundImage:function(e,t,n){return this.__setBgOverlayImage("backgroundImage",e,t,n)},setOverlayColor:function(e,t){return this.__setBgOverlayColor("overlayColor",e,t)},setBackgroundColor:function(e,t){return this.__setBgOverlayColor("backgroundColor",e,t)},_setImageSmoothing:function(){var e=this.getContext();e.imageSmoothingEnabled=this.imageSmoothingEnabled,e.webkitImageSmoothingEnabled=this.imageSmoothingEnabled,e.mozImageSmoothingEnabled=this.imageSmoothingEnabled,e.msImageSmoothingEnabled=this.imageSmoothingEnabled,e.oImageSmoothingEnabled=this.imageSmoothingEnabled},__setBgOverlayImage:function(e,t,n,r){return typeof t=="string"?fabric.util.loadImage(t,function(t){this[e]=new fabric.Image(t,r),n&&n()},this):(this[e]=t,n&&n()),this},__setBgOverlayColor:function(e,t,n){if(t&&t.source){var r=this;fabric.util.loadImage(t.source,function(i){r[e]=new fabric.Pattern({source:i,repeat:t.repeat,offsetX:t.offsetX,offsetY:t.offsetY}),n&&n()})}else this[e]=t,n&&n();return this},_createCanvasElement:function(){var e=fabric.document.createElement("canvas");e.style||(e.style={});if(!e)throw r;return this._initCanvasElement(e),e},_initCanvasElement:function(e){fabric.util.createCanvasElement(e);if(typeof e.getContext=="undefined")throw r},_initOptions:function(e){for(var t in e)this[t]=e[t];this.width=this.width||parseInt(this.lowerCanvasEl.width,10)||0,this.height=this.height||parseInt(this.lowerCanvasEl.height,10)||0;if(!this.lowerCanvasEl.style)return;this.lowerCanvasEl.width=this.width,this.lowerCanvasEl.height=this.height,this.lowerCanvasEl.style.width=this.width+"px",this.lowerCanvasEl.style.height=this.height+"px",this.viewportTransform=this.viewportTransform.slice()},_createLowerCanvas:function(e){this.lowerCanvasEl=fabric.util.getById(e)||this._createCanvasElement(),this._initCanvasElement(this.lowerCanvasEl),fabric.util.addClass(this.lowerCanvasEl,"lower-canvas"),this.interactive&&this._applyCanvasStyle(this.lowerCanvasEl),this.contextContainer=this.lowerCanvasEl.getContext("2d")},getWidth:function(){return this.width},getHeight:function(){return this.height},setWidth:function(e){return this._setDimension("width",e)},setHeight:function(e){return this._setDimension("height",e)},setDimensions:function(e){for(var t in e)this._setDimension(t,e[t]);return this},_setDimension:function(e,t){return this.lowerCanvasEl[e]=t,this.lowerCanvasEl.style[e]=t+"px",this.upperCanvasEl&&(this.upperCanvasEl[e]=t,this.upperCanvasEl.style[e]=t+"px"),this.cacheCanvasEl&&(this.cacheCanvasEl[e]=t),this.wrapperEl&&(this.wrapperEl.style[e]=t+"px"),this[e]=t,this.calcOffset(),this.renderAll(),this},getZoom:function(){return Math.sqrt(this.viewportTransform[0]*this.viewportTransform[3])},setViewportTransform:function(e){this.viewportTransform=e,this.renderAll();for(var t=0,n=this._objects.length;t<n;t++)this._objects[t].setCoords();return this},zoomToPoint:function(e,t){var n=e;e=fabric.util.transformPoint(e,fabric.util.invertTransform(this.viewportTransform)),this.viewportTransform[0]=t,this.viewportTransform[3]=t;var r=fabric.util.transformPoint(e,this.viewportTransform);this.viewportTransform[4]+=n.x-r.x,this.viewportTransform[5]+=n.y-r.y,this.renderAll();for(var i=0,s=this._objects.length;i<s;i++)this._objects[i].setCoords();return this},setZoom:function(e){return this.zoomToPoint(new fabric.Point(0,0),e),this},absolutePan:function(e){this.viewportTransform[4]=-e.x,this.viewportTransform[5]=-e.y,this.renderAll();for(var t=0,n=this._objects.length;t<n;t++)this._objects[t].setCoords();return this},relativePan:function(e){return this.absolutePan(new fabric.Point(-e.x-this.viewportTransform[4],-e.y-this.viewportTransform[5]))},getElement:function(){return this.lowerCanvasEl},getActiveObject:function(){return null},getActiveGroup:function(){return null},_draw:function(e,t){if(!t)return;e.save();var n=this.viewportTransform;e.transform(n[0],n[1],n[2],n[3],n[4],n[5]),t.render(e),e.restore(),this.controlsAboveOverlay||t._renderControls(e)},_onObjectAdded:function(e){this.stateful&&e.setupState(),e.canvas=this,e.setCoords(),this.fire("object:added",{target:e}),e.fire("added")},_onObjectRemoved:function(e){this.getActiveObject()===e&&(this.fire("before:selection:cleared",{target:e}),this._discardActiveObject(),this.fire("selection:cleared")),this.fire("object:removed",{target:e}),e.fire("removed")},clearContext:function(e){return e.clearRect(0,0,this.width,this.height),this},getContext:function(){return this.contextContainer},clear:function(){return this._objects.length=0,this.discardActiveGroup&&this.discardActiveGroup(),this.discardActiveObject&&this.discardActiveObject(),this.clearContext(this.contextContainer),this.contextTop&&this.clearContext(this.contextTop),this.fire("canvas:cleared"),this.renderAll(),this},renderAll:function(e){var t=this[e===!0&&this.interactive?"contextTop":"contextContainer"],n=this.getActiveGroup();return this.contextTop&&this.selection&&!this._groupSelector&&this.clearContext(this.contextTop),e||this.clearContext(t),this.fire("before:render"),this.clipTo&&fabric.util.clipContext(this,t),this._renderBackground(t),this._renderObjects(t,n),this._renderActiveGroup(t,n),this.clipTo&&t.restore(),this._renderOverlay(t),this.controlsAboveOverlay&&this.interactive&&this.drawControls(t),this.fire("after:render"),this},_renderObjects:function(e,t){var n,r;if(!t)for(n=0,r=this._objects.length;n<r;++n)this._draw(e,this._objects[n]);else for(n=0,r=this._objects.length;n<r;++n)this._objects[n]&&!t.contains(this._objects[n])&&this._draw(e,this._objects[n])},_renderActiveGroup:function(e,t){if(t){var n=[];this.forEachObject(function(e){t.contains(e)&&n.push(e)}),t._set("objects",n),this._draw(e,t)}},_renderBackground:function(e){this.backgroundColor&&(e.fillStyle=this.backgroundColor.toLive?this.backgroundColor.toLive(e):this.backgroundColor,e.fillRect(this.backgroundColor.offsetX||0,this.backgroundColor.offsetY||0,this.width,this.height)),this.backgroundImage&&this._draw(e,this.backgroundImage)},_renderOverlay:function(e){this.overlayColor&&(e.fillStyle=this.overlayColor.toLive?this.overlayColor.toLive(e):this.overlayColor,e.fillRect(this.overlayColor.offsetX||0,this.overlayColor.offsetY||0,this.width,this.height)),this.overlayImage&&this._draw(e,this.overlayImage)},renderTop:function(){var e=this.contextTop||this.contextContainer;this.clearContext(e),this.selection&&this._groupSelector&&this._drawSelection();var t=this.getActiveGroup();return t&&t.render(e),this._renderOverlay(e),this.fire("after:render"),this},getCenter:function(){return{top:this.getHeight()/2,left:this.getWidth()/2}},centerObjectH:function(e){return this._centerObject(e,new fabric.Point(this.getCenter().left,e.getCenterPoint().y)),this.renderAll(),this},centerObjectV:function(e){return this._centerObject(e,new fabric.Point(e.getCenterPoint().x,this.getCenter().top)),this.renderAll(),this},centerObject:function(e){var t=this.getCenter();return this._centerObject(e,new fabric.Point(t.left,t.top)),this.renderAll(),this},_centerObject:function(e,t){return e.setPositionByOrigin(t,"center","center"),this},toDatalessJSON:function(e){return this.toDatalessObject(e)},toObject:function(e){return this._toObjectMethod("toObject",e)},toDatalessObject:function(e){return this._toObjectMethod("toDatalessObject",e)},_toObjectMethod:function(t,n){var r=this.getActiveGroup();r&&this.discardActiveGroup();var i={objects:this._toObjects(t,n)};return e(i,this.__serializeBgOverlay()),fabric.util.populateWithProperties(this,i,n),r&&(this.setActiveGroup(new fabric.Group(r.getObjects(),{originX:"center",originY:"center"})),r.forEachObject(function(e){e.set("active",!0)}),this._currentTransform&&(this._currentTransform.target=this.getActiveGroup())),i},_toObjects:function(e,t){return this.getObjects().map(function(n){return this._toObject(n,e,t)},this)},_toObject:function(e,t,n){var r;this.includeDefaultValues||(r=e.includeDefaultValues,e.includeDefaultValues=!1);var i=e[t](n);return this.includeDefaultValues||(e.includeDefaultValues=r),i},__serializeBgOverlay:function(){var e={background:this.backgroundColor&&this.backgroundColor.toObject?this.backgroundColor.toObject():this.backgroundColor};return this.overlayColor&&(e.overlay=this.overlayColor.toObject?this.overlayColor.toObject():this.overlayColor),this.backgroundImage&&(e.backgroundImage=this.backgroundImage.toObject()),this.overlayImage&&(e.overlayImage=this.overlayImage.toObject()),e},toSVG:function(e,t){e||(e={});var n=[];return this._setSVGPreamble(n,e),this._setSVGHeader(n,e),this._setSVGBgOverlayColor(n,"backgroundColor"),this._setSVGBgOverlayImage(n,"backgroundImage"),this._setSVGObjects(n,t),this._setSVGBgOverlayColor(n,"overlayColor"),this._setSVGBgOverlayImage(n,"overlayImage"),n.push("</svg>"),n.join("")},_setSVGPreamble:function(e,t){t.suppressPreamble||e.push('<?xml version="1.0" encoding="',t.encoding||"UTF-8",'" standalone="no" ?>','<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" ','"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n')},_setSVGHeader:function(e,t){e.push("<svg ",'xmlns="http://www.w3.org/2000/svg" ','xmlns:xlink="http://www.w3.org/1999/xlink" ','version="1.1" ','width="',t.viewBox?t.viewBox.width:this.width,'" ','height="',t.viewBox?t.viewBox.height:this.height,'" ',this.backgroundColor&&!this.backgroundColor.toLive?'style="background-color: '+this.backgroundColor+'" ':null,t.viewBox?'viewBox="'+t.viewBox.x+" "+t.viewBox.y+" "+t.viewBox.width+" "+t.viewBox.height+'" ':null,'xml:space="preserve">',"<desc>Created with Fabric.js ",fabric.version,"</desc>","<defs>",fabric.createSVGFontFacesMarkup(this.getObjects()),fabric.createSVGRefElementsMarkup(this),"</defs>")},_setSVGObjects:function(e,t){var n=this.getActiveGroup();n&&this.discardActiveGroup();for(var r=0,i=this.getObjects(),s=i.length;r<s;r++)e.push(i[r].toSVG(t));n&&(this.setActiveGroup(new fabric.Group(n.getObjects())),n.forEachObject(function(e){e.set("active",!0)}))},_setSVGBgOverlayImage:function(e,t){this[t]&&this[t].toSVG&&e.push(this[t].toSVG())},_setSVGBgOverlayColor:function(e,t){this[t]&&this[t].source?e.push('<rect x="',this[t].offsetX,'" y="',this[t].offsetY,'" ','width="',this[t].repeat==="repeat-y"||this[t].repeat==="no-repeat"?this[t].source.width:this.width,'" height="',this[t].repeat==="repeat-x"||this[t].repeat==="no-repeat"?this[t].source.height:this.height,'" fill="url(#'+t+'Pattern)"',"></rect>"):this[t]&&t==="overlayColor"&&e.push('<rect x="0" y="0" ','width="',this.width,'" height="',this.height,'" fill="',this[t],'"',"></rect>")},sendToBack:function(e){return n(this._objects,e),this._objects.unshift(e),this.renderAll&&this.renderAll()},bringToFront:function(e){return n(this._objects,e),this._objects.push(e),this.renderAll&&this.renderAll()},sendBackwards:function(e,t){var r=this._objects.indexOf(e);if(r!==0){var i=this._findNewLowerIndex(e,r,t);n(this._objects,e),this._objects.splice(i,0,e),this.renderAll&&this.renderAll()}return this},_findNewLowerIndex:function(e,t,n){var r;if(n){r=t;for(var i=t-1;i>=0;--i){var s=e.intersectsWithObject(this._objects[i])||e.isContainedWithinObject(this._objects[i])||this._objects[i].isContainedWithinObject(e);if(s){r=i;break}}}else r=t-1;return r},bringForward:function(e,t){var r=this._objects.indexOf(e);if(r!==this._objects.length-1){var i=this._findNewUpperIndex(e,r,t);n(this._objects,e),this._objects.splice(i,0,e),this.renderAll&&this.renderAll()}return this},_findNewUpperIndex:function(e,t,n){var r;if(n){r=t;for(var i=t+1;i<this._objects.length;++i){var s=e.intersectsWithObject(this._objects[i])||e.isContainedWithinObject(this._objects[i])||this._objects[i].isContainedWithinObject(e);if(s){r=i;break}}}else r=t+1;return r},moveTo:function(e,t){return n(this._objects,e),this._objects.splice(t,0,e),this.renderAll&&this.renderAll()},dispose:function(){return this.clear(),this.interactive&&this.removeListeners(),this},toString:function(){return"#<fabric.Canvas ("+this.complexity()+"): "+"{ objects: "+this.getObjects().length+" }>"}}),e(fabric.StaticCanvas.prototype,fabric.Observable),e(fabric.StaticCanvas.prototype,fabric.Collection),e(fabric.StaticCanvas.prototype,fabric.DataURLExporter),e(fabric.StaticCanvas,{EMPTY_JSON:'{"objects": [], "background": "white"}',supports:function(e){var t=fabric.util.createCanvasElement();if(!t||!t.getContext)return null;var n=t.getContext("2d");if(!n)return null;switch(e){case"getImageData":return typeof n.getImageData!="undefined";case"setLineDash":return typeof n.setLineDash!="undefined";case"toDataURL":return typeof t.toDataURL!="undefined";case"toDataURLWithQuality":try{return t.toDataURL("image/jpeg",0),!0}catch(r){}return!1;default:return null}}}),fabric.StaticCanvas.prototype.toJSON=fabric.StaticCanvas.prototype.toObject}(),fabric.BaseBrush=fabric.util.createClass({color:"rgb(0, 0, 0)",width:1,shadow:null,strokeLineCap:"round",strokeLineJoin:"round",setShadow:function(e){return this.shadow=new fabric.Shadow(e),this},_setBrushStyles:function(){var e=this.canvas.contextTop;e.strokeStyle=this.color,e.lineWidth=this.width,e.lineCap=this.strokeLineCap,e.lineJoin=this.strokeLineJoin},_setShadow:function(){if(!this.shadow)return;var e=this.canvas.contextTop;e.shadowColor=this.shadow.color,e.shadowBlur=this.shadow.blur,e.shadowOffsetX=this.shadow.offsetX,e.shadowOffsetY=this.shadow.offsetY},_resetShadow:function(){var e=this.canvas.contextTop;e.shadowColor="",e.shadowBlur=e.shadowOffsetX=e.shadowOffsetY=0}}),function(){var e=fabric.util.array.min,t=fabric.util.array.max;fabric.PencilBrush=fabric.util.createClass(fabric.BaseBrush,{initialize:function(e){this.canvas=e,this._points=[]},onMouseDown:function(e){this._prepareForDrawing(e),this._captureDrawingPath(e),this._render()},onMouseMove:function(e){this._captureDrawingPath(e),this.canvas.clearContext(this.canvas.contextTop),this._render()},onMouseUp:function(){this._finalizeAndAddPath()},_prepareForDrawing:function(e){var t=new fabric.Point(e.x,e.y);this._reset(),this._addPoint(t),this.canvas.contextTop.moveTo(t.x,t.y)},_addPoint:function(e){this._points.push(e)},_reset:function(){this._points.length=0,this._setBrushStyles(),this._setShadow()},_captureDrawingPath:function(e){var t=new fabric.Point(e.x,e.y);this._addPoint(t)},_render:function(){var e=this.canvas.contextTop,t=this.canvas.viewportTransform,n=this._points[0],r=this._points[1];e.save(),e.transform(t[0],t[1],t[2],t[3],t[4],t[5]),e.beginPath(),this._points.length===2&&n.x===r.x&&n.y===r.y&&(n.x-=.5,r.x+=.5),e.moveTo(n.x,n.y);for(var i=1,s=this._points.length;i<s;i++){var o=n.midPointFrom(r);e.quadraticCurveTo(n.x,n.y,o.x,o.y),n=this._points[i],r=this._points[i+1]}e.lineTo(n.x,n.y),e.stroke(),e.restore()},_getSVGPathData:function(){return this.box=this.getPathBoundingBox(this._points),this.convertPointsToSVGPath(this._points,this.box.minX,this.box.minY)},getPathBoundingBox:function(n){var r=[],i=[],s=n[0],o=n[1],u=s;for(var a=1,f=n.length;a<f;a++){var l=s.midPointFrom(o);r.push(u.x),r.push(l.x),i.push(u.y),i.push(l.y),s=n[a],o=n[a+1],u=l}return r
+.push(s.x),i.push(s.y),{minX:e(r),minY:e(i),maxX:t(r),maxY:t(i)}},convertPointsToSVGPath:function(e,t,n){var r=[],i=new fabric.Point(e[0].x-t,e[0].y-n),s=new fabric.Point(e[1].x-t,e[1].y-n);r.push("M ",e[0].x-t," ",e[0].y-n," ");for(var o=1,u=e.length;o<u;o++){var a=i.midPointFrom(s);r.push("Q ",i.x," ",i.y," ",a.x," ",a.y," "),i=new fabric.Point(e[o].x-t,e[o].y-n),o+1<e.length&&(s=new fabric.Point(e[o+1].x-t,e[o+1].y-n))}return r.push("L ",i.x," ",i.y," "),r},createPath:function(e){var t=new fabric.Path(e);return t.fill=null,t.stroke=this.color,t.strokeWidth=this.width,t.strokeLineCap=this.strokeLineCap,t.strokeLineJoin=this.strokeLineJoin,this.shadow&&(this.shadow.affectStroke=!0,t.setShadow(this.shadow)),t},_finalizeAndAddPath:function(){var e=this.canvas.contextTop;e.closePath();var t=this._getSVGPathData().join("");if(t==="M 0 0 Q 0 0 0 0 L 0 0"){this.canvas.renderAll();return}var n=this.box.minx+(this.box.maxx-this.box.minx)/2,r=this.box.miny+(this.box.maxy-this.box.miny)/2;this.canvas.contextTop.arc(n,r,3,0,Math.PI*2,!1);var i=this.createPath(t);i.set({left:n,top:r,originX:"center",originY:"center"}),this.canvas.add(i),i.setCoords(),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderAll(),this.canvas.fire("path:created",{path:i})}})}(),fabric.CircleBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,initialize:function(e){this.canvas=e,this.points=[]},drawDot:function(e){var t=this.addPoint(e),n=this.canvas.contextTop,r=this.canvas.viewportTransform;n.save(),n.transform(r[0],r[1],r[2],r[3],r[4],r[5]),n.fillStyle=t.fill,n.beginPath(),n.arc(t.x,t.y,t.radius,0,Math.PI*2,!1),n.closePath(),n.fill(),n.restore()},onMouseDown:function(e){this.points.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.drawDot(e)},onMouseMove:function(e){this.drawDot(e)},onMouseUp:function(){var e=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;var t=[];for(var n=0,r=this.points.length;n<r;n++){var i=this.points[n],s=new fabric.Circle({radius:i.radius,left:i.x,top:i.y,originX:"center",originY:"center",fill:i.fill});this.shadow&&s.setShadow(this.shadow),t.push(s)}var o=new fabric.Group(t,{originX:"center",originY:"center"});o.canvas=this.canvas,this.canvas.add(o),this.canvas.fire("path:created",{path:o}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=e,this.canvas.renderAll()},addPoint:function(e){var t=new fabric.Point(e.x,e.y),n=fabric.util.getRandomInt(Math.max(0,this.width-20),this.width+20)/2,r=(new fabric.Color(this.color)).setAlpha(fabric.util.getRandomInt(0,100)/100).toRgba();return t.radius=n,t.fill=r,this.points.push(t),t}}),fabric.SprayBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,density:20,dotWidth:1,dotWidthVariance:1,randomOpacity:!1,optimizeOverlapping:!0,initialize:function(e){this.canvas=e,this.sprayChunks=[]},onMouseDown:function(e){this.sprayChunks.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.addSprayChunk(e),this.render()},onMouseMove:function(e){this.addSprayChunk(e),this.render()},onMouseUp:function(){var e=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;var t=[];for(var n=0,r=this.sprayChunks.length;n<r;n++){var i=this.sprayChunks[n];for(var s=0,o=i.length;s<o;s++){var u=new fabric.Rect({width:i[s].width,height:i[s].width,left:i[s].x+1,top:i[s].y+1,originX:"center",originY:"center",fill:this.color});this.shadow&&u.setShadow(this.shadow),t.push(u)}}this.optimizeOverlapping&&(t=this._getOptimizedRects(t));var a=new fabric.Group(t,{originX:"center",originY:"center"});a.canvas=this.canvas,this.canvas.add(a),this.canvas.fire("path:created",{path:a}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=e,this.canvas.renderAll()},_getOptimizedRects:function(e){var t={},n;for(var r=0,i=e.length;r<i;r++)n=e[r].left+""+e[r].top,t[n]||(t[n]=e[r]);var s=[];for(n in t)s.push(t[n]);return s},render:function(){var e=this.canvas.contextTop;e.fillStyle=this.color;var t=this.canvas.viewportTransform;e.save(),e.transform(t[0],t[1],t[2],t[3],t[4],t[5]);for(var n=0,r=this.sprayChunkPoints.length;n<r;n++){var i=this.sprayChunkPoints[n];typeof i.opacity!="undefined"&&(e.globalAlpha=i.opacity),e.fillRect(i.x,i.y,i.width,i.width)}e.restore()},addSprayChunk:function(e){this.sprayChunkPoints=[];var t,n,r,i=this.width/2;for(var s=0;s<this.density;s++){t=fabric.util.getRandomInt(e.x-i,e.x+i),n=fabric.util.getRandomInt(e.y-i,e.y+i),this.dotWidthVariance?r=fabric.util.getRandomInt(Math.max(1,this.dotWidth-this.dotWidthVariance),this.dotWidth+this.dotWidthVariance):r=this.dotWidth;var o=new fabric.Point(t,n);o.width=r,this.randomOpacity&&(o.opacity=fabric.util.getRandomInt(0,100)/100),this.sprayChunkPoints.push(o)}this.sprayChunks.push(this.sprayChunkPoints)}}),fabric.PatternBrush=fabric.util.createClass(fabric.PencilBrush,{getPatternSrc:function(){var e=20,t=5,n=fabric.document.createElement("canvas"),r=n.getContext("2d");return n.width=n.height=e+t,r.fillStyle=this.color,r.beginPath(),r.arc(e/2,e/2,e/2,0,Math.PI*2,!1),r.closePath(),r.fill(),n},getPatternSrcFunction:function(){return String(this.getPatternSrc).replace("this.color",'"'+this.color+'"')},getPattern:function(){return this.canvas.contextTop.createPattern(this.source||this.getPatternSrc(),"repeat")},_setBrushStyles:function(){this.callSuper("_setBrushStyles"),this.canvas.contextTop.strokeStyle=this.getPattern()},createPath:function(e){var t=this.callSuper("createPath",e);return t.stroke=new fabric.Pattern({source:this.source||this.getPatternSrcFunction()}),t}}),function(){var e=fabric.util.getPointer,t=fabric.util.degreesToRadians,n=fabric.util.radiansToDegrees,r=Math.atan2,i=Math.abs,s=.5;fabric.Canvas=fabric.util.createClass(fabric.StaticCanvas,{initialize:function(e,t){t||(t={}),this._initStatic(e,t),this._initInteractive(),this._createCacheCanvas(),fabric.Canvas.activeInstance=this},uniScaleTransform:!1,centeredScaling:!1,centeredRotation:!1,interactive:!0,selection:!0,selectionColor:"rgba(100, 100, 255, 0.3)",selectionDashArray:[],selectionBorderColor:"rgba(255, 255, 255, 0.3)",selectionLineWidth:1,hoverCursor:"move",moveCursor:"move",defaultCursor:"default",freeDrawingCursor:"crosshair",rotationCursor:"crosshair",containerClass:"canvas-container",perPixelTargetFind:!1,targetFindTolerance:0,skipTargetFind:!1,_initInteractive:function(){this._currentTransform=null,this._groupSelector=null,this._initWrapperElement(),this._createUpperCanvas(),this._initEventListeners(),this.freeDrawingBrush=fabric.PencilBrush&&new fabric.PencilBrush(this),this.calcOffset()},_resetCurrentTransform:function(e){var t=this._currentTransform;t.target.set({scaleX:t.original.scaleX,scaleY:t.original.scaleY,left:t.original.left,top:t.original.top}),this._shouldCenterTransform(e,t.target)?t.action==="rotate"?this._setOriginToCenter(t.target):(t.originX!=="center"&&(t.originX==="right"?t.mouseXSign=-1:t.mouseXSign=1),t.originY!=="center"&&(t.originY==="bottom"?t.mouseYSign=-1:t.mouseYSign=1),t.originX="center",t.originY="center"):(t.originX=t.original.originX,t.originY=t.original.originY)},containsPoint:function(e,t){var n=this.getPointer(e,!0),r=this._normalizePointer(t,n);return t.containsPoint(r)||t._findTargetCorner(n)},_normalizePointer:function(e,t){var n=this.getActiveGroup(),r=t.x,i=t.y,s=n&&e.type!=="group"&&n.contains(e),o;return s&&(o=new fabric.Point(n.left,n.top),o=fabric.util.transformPoint(o,this.viewportTransform,!0),r-=o.x,i-=o.y),{x:r,y:i}},isTargetTransparent:function(e,t,n){var r=e.hasBorders,i=e.transparentCorners;e.hasBorders=e.transparentCorners=!1,this._draw(this.contextCache,e),e.hasBorders=r,e.transparentCorners=i;var s=fabric.util.isTransparent(this.contextCache,t,n,this.targetFindTolerance);return this.clearContext(this.contextCache),s},_shouldClearSelection:function(e,t){var n=this.getActiveGroup(),r=this.getActiveObject();return!t||t&&n&&!n.contains(t)&&n!==t&&!e.shiftKey||t&&!t.evented||t&&!t.selectable&&r&&r!==t},_shouldCenterTransform:function(e,t){if(!t)return;var n=this._currentTransform,r;return n.action==="scale"||n.action==="scaleX"||n.action==="scaleY"?r=this.centeredScaling||t.centeredScaling:n.action==="rotate"&&(r=this.centeredRotation||t.centeredRotation),r?!e.altKey:e.altKey},_getOriginFromCorner:function(e,t){var n={x:e.originX,y:e.originY};if(t==="ml"||t==="tl"||t==="bl")n.x="right";else if(t==="mr"||t==="tr"||t==="br")n.x="left";if(t==="tl"||t==="mt"||t==="tr")n.y="bottom";else if(t==="bl"||t==="mb"||t==="br")n.y="top";return n},_getActionFromCorner:function(e,t){var n="drag";return t&&(n=t==="ml"||t==="mr"?"scaleX":t==="mt"||t==="mb"?"scaleY":t==="mtr"?"rotate":"scale"),n},_setupCurrentTransform:function(e,n){if(!n)return;var r=this.getPointer(e),i=n._findTargetCorner(this.getPointer(e,!0)),s=this._getActionFromCorner(n,i),o=this._getOriginFromCorner(n,i);this._currentTransform={target:n,action:s,scaleX:n.scaleX,scaleY:n.scaleY,offsetX:r.x-n.left,offsetY:r.y-n.top,originX:o.x,originY:o.y,ex:r.x,ey:r.y,left:n.left,top:n.top,theta:t(n.angle),width:n.width*n.scaleX,mouseXSign:1,mouseYSign:1},this._currentTransform.original={left:n.left,top:n.top,scaleX:n.scaleX,scaleY:n.scaleY,originX:o.x,originY:o.y},this._resetCurrentTransform(e)},_translateObject:function(e,t){var n=this._currentTransform.target;n.get("lockMovementX")||n.set("left",e-this._currentTransform.offsetX),n.get("lockMovementY")||n.set("top",t-this._currentTransform.offsetY)},_scaleObject:function(e,t,n){var r=this._currentTransform,i=r.target,s=i.get("lockScalingX"),o=i.get("lockScalingY");if(s&&o)return;var u=i.translateToOriginPoint(i.getCenterPoint(),r.originX,r.originY),a=i.toLocalPoint(new fabric.Point(e,t),r.originX,r.originY);this._setLocalMouse(a,r),this._setObjectScale(a,r,s,o,n),i.setPositionByOrigin(u,r.originX,r.originY)},_setObjectScale:function(e,t,n,r,i){var s=t.target;t.newScaleX=s.scaleX,t.newScaleY=s.scaleY,i==="equally"&&!n&&!r?this._scaleObjectEqually(e,s,t):i?i==="x"&&!s.get("lockUniScaling")?(t.newScaleX=e.x/(s.width+s.strokeWidth),n||s.set("scaleX",t.newScaleX)):i==="y"&&!s.get("lockUniScaling")&&(t.newScaleY=e.y/(s.height+s.strokeWidth),r||s.set("scaleY",t.newScaleY)):(t.newScaleX=e.x/(s.width+s.strokeWidth),t.newScaleY=e.y/(s.height+s.strokeWidth),n||s.set("scaleX",t.newScaleX),r||s.set("scaleY",t.newScaleY)),this._flipObject(t)},_scaleObjectEqually:function(e,t,n){var r=e.y+e.x,i=(t.height+t.strokeWidth)*n.original.scaleY+(t.width+t.strokeWidth)*n.original.scaleX;n.newScaleX=n.original.scaleX*r/i,n.newScaleY=n.original.scaleY*r/i,t.set("scaleX",n.newScaleX),t.set("scaleY",n.newScaleY)},_flipObject:function(e){e.newScaleX<0&&(e.originX==="left"?e.originX="right":e.originX==="right"&&(e.originX="left")),e.newScaleY<0&&(e.originY==="top"?e.originY="bottom":e.originY==="bottom"&&(e.originY="top"))},_setLocalMouse:function(e,t){var n=t.target;t.originX==="right"?e.x*=-1:t.originX==="center"&&(e.x*=t.mouseXSign*2,e.x<0&&(t.mouseXSign=-t.mouseXSign)),t.originY==="bottom"?e.y*=-1:t.originY==="center"&&(e.y*=t.mouseYSign*2,e.y<0&&(t.mouseYSign=-t.mouseYSign)),i(e.x)>n.padding?e.x<0?e.x+=n.padding:e.x-=n.padding:e.x=0,i(e.y)>n.padding?e.y<0?e.y+=n.padding:e.y-=n.padding:e.y=0},_rotateObject:function(e,t){var i=this._currentTransform;if(i.target.get("lockRotation"))return;var s=r(i.ey-i.top,i.ex-i.left),o=r(t-i.top,e-i.left),u=n(o-s+i.theta);u<0&&(u=360+u),i.target.angle=u},setCursor:function(e){this.upperCanvasEl.style.cursor=e},_resetObjectTransform:function(e){e.scaleX=1,e.scaleY=1,e.setAngle(0)},_drawSelection:function(){var e=this.contextTop,t=this._groupSelector,n=t.left,r=t.top,o=i(n),u=i(r);e.fillStyle=this.selectionColor,e.fillRect(t.ex-(n>0?0:-n),t.ey-(r>0?0:-r),o,u),e.lineWidth=this.selectionLineWidth,e.strokeStyle=this.selectionBorderColor;if(this.selectionDashArray.length>1){var a=t.ex+s-(n>0?0:o),f=t.ey+s-(r>0?0:u);e.beginPath(),fabric.util.drawDashedLine(e,a,f,a+o,f,this.selectionDashArray),fabric.util.drawDashedLine(e,a,f+u-1,a+o,f+u-1,this.selectionDashArray),fabric.util.drawDashedLine(e,a,f,a,f+u,this.selectionDashArray),fabric.util.drawDashedLine(e,a+o-1,f,a+o-1,f+u,this.selectionDashArray),e.closePath(),e.stroke()}else e.strokeRect(t.ex+s-(n>0?0:o),t.ey+s-(r>0?0:u),o,u)},_isLastRenderedObject:function(e){return this.controlsAboveOverlay&&this.lastRenderedObjectWithControlsAboveOverlay&&this.lastRenderedObjectWithControlsAboveOverlay.visible&&this.containsPoint(e,this.lastRenderedObjectWithControlsAboveOverlay)&&this.lastRenderedObjectWithControlsAboveOverlay._findTargetCorner(this.getPointer(e,!0))},findTarget:function(e,t){if(this.skipTargetFind)return;if(this._isLastRenderedObject(e))return this.lastRenderedObjectWithControlsAboveOverlay;var n=this.getActiveGroup();if(n&&!t&&this.containsPoint(e,n))return n;var r=this._searchPossibleTargets(e);return this._fireOverOutEvents(r),r},_fireOverOutEvents:function(e){e?this._hoveredTarget!==e&&(this.fire("mouse:over",{target:e}),e.fire("mouseover"),this._hoveredTarget&&(this.fire("mouse:out",{target:this._hoveredTarget}),this._hoveredTarget.fire("mouseout")),this._hoveredTarget=e):this._hoveredTarget&&(this.fire("mouse:out",{target:this._hoveredTarget}),this._hoveredTarget.fire("mouseout"),this._hoveredTarget=null)},_checkTarget:function(e,t,n){if(t&&t.visible&&t.evented&&this.containsPoint(e,t)){if(!this.perPixelTargetFind&&!t.perPixelTargetFind||!!t.isEditing)return!0;var r=this.isTargetTransparent(t,n.x,n.y);if(!r)return!0}},_searchPossibleTargets:function(e){var t,n=this.getPointer(e,!0),r=this._objects.length;while(r--)if(this._checkTarget(e,this._objects[r],n)){this.relatedTarget=this._objects[r],t=this._objects[r];break}return t},getPointer:function(t,n,r){r||(r=this.upperCanvasEl);var i=e(t,r),s=r.getBoundingClientRect(),o;return i.x=i.x-this._offset.left,i.y=i.y-this._offset.top,n||(i=fabric.util.transformPoint(i,fabric.util.invertTransform(this.viewportTransform))),s.width===0||s.height===0?o={width:1,height:1}:o={width:r.width/s.width,height:r.height/s.height},{x:i.x*o.width,y:i.y*o.height}},_createUpperCanvas:function(){var e=this.lowerCanvasEl.className.replace(/\s*lower-canvas\s*/,"");this.upperCanvasEl=this._createCanvasElement(),fabric.util.addClass(this.upperCanvasEl,"upper-canvas "+e),this.wrapperEl.appendChild(this.upperCanvasEl),this._copyCanvasStyle(this.lowerCanvasEl,this.upperCanvasEl),this._applyCanvasStyle(this.upperCanvasEl),this.contextTop=this.upperCanvasEl.getContext("2d")},_createCacheCanvas:function(){this.cacheCanvasEl=this._createCanvasElement(),this.cacheCanvasEl.setAttribute("width",this.width),this.cacheCanvasEl.setAttribute("height",this.height),this.contextCache=this.cacheCanvasEl.getContext("2d")},_initWrapperElement:function(){this.wrapperEl=fabric.util.wrapElement(this.lowerCanvasEl,"div",{"class":this.containerClass}),fabric.util.setStyle(this.wrapperEl,{width:this.getWidth()+"px",height:this.getHeight()+"px",position:"relative"}),fabric.util.makeElementUnselectable(this.wrapperEl)},_applyCanvasStyle:function(e){var t=this.getWidth()||e.width,n=this.getHeight()||e.height;fabric.util.setStyle(e,{position:"absolute",width:t+"px",height:n+"px",left:0,top:0}),e.width=t,e.height=n,fabric.util.makeElementUnselectable(e)},_copyCanvasStyle:function(e,t){t.style.cssText=e.style.cssText},getSelectionContext:function(){return this.contextTop},getSelectionElement:function(){return this.upperCanvasEl},_setActiveObject:function(e){this._activeObject&&this._activeObject.set("active",!1),this._activeObject=e,e.set("active",!0)},setActiveObject:function(e,t){return this._setActiveObject(e),this.renderAll(),this.fire("object:selected",{target:e,e:t}),e.fire("selected",{e:t}),this},getActiveObject:function(){return this._activeObject},_discardActiveObject:function(){this._activeObject&&this._activeObject.set("active",!1),this._activeObject=null},discardActiveObject:function(e){return this._discardActiveObject(),this.renderAll(),this.fire("selection:cleared",{e:e}),this},_setActiveGroup:function(e){this._activeGroup=e,e&&e.set("active",!0)},setActiveGroup:function(e,t){return this._setActiveGroup(e),e&&(this.fire("object:selected",{target:e,e:t}),e.fire("selected",{e:t})),this},getActiveGroup:function(){return this._activeGroup},_discardActiveGroup:function(){var e=this.getActiveGroup();e&&e.destroy(),this.setActiveGroup(null)},discardActiveGroup:function(e){return this._discardActiveGroup(),this.fire("selection:cleared",{e:e}),this},deactivateAll:function(){var e=this.getObjects(),t=0,n=e.length;for(;t<n;t++)e[t].set("active",!1);return this._discardActiveGroup(),this._discardActiveObject(),this},deactivateAllWithDispatch:function(e){var t=this.getActiveGroup()||this.getActiveObject();return t&&this.fire("before:selection:cleared",{target:t,e:e}),this.deactivateAll(),t&&this.fire("selection:cleared",{e:e}),this},drawControls:function(e){var t=this.getActiveGroup();t?this._drawGroupControls(e,t):this._drawObjectsControls(e)},_drawGroupControls:function(e,t){t._renderControls(e)},_drawObjectsControls:function(e){for(var t=0,n=this._objects.length;t<n;++t){if(!this._objects[t]||!this._objects[t].active)continue;this._objects[t]._renderControls(e),this.lastRenderedObjectWithControlsAboveOverlay=this._objects[t]}}});for(var o in fabric.StaticCanvas)o!=="prototype"&&(fabric.Canvas[o]=fabric.StaticCanvas[o]);fabric.isTouchSupported&&(fabric.Canvas.prototype._setCursorFromEvent=function(){}),fabric.Element=fabric.Canvas}(),function(){var e={mt:0,tr:1,mr:2,br:3,mb:4,bl:5,ml:6,tl:7},t=fabric.util.addListener,n=fabric.util.removeListener;fabric.util.object.extend(fabric.Canvas.prototype,{cursorMap:["n-resize","ne-resize","e-resize","se-resize","s-resize","sw-resize","w-resize","nw-resize"],_initEventListeners:function(){this._bindEvents(),t(fabric.window,"resize",this._onResize),t(this.upperCanvasEl,"mousedown",this._onMouseDown),t(this.upperCanvasEl,"mousemove",this._onMouseMove),t(this.upperCanvasEl,"mousewheel",this._onMouseWheel),t(this.upperCanvasEl,"touchstart",this._onMouseDown),t(this.upperCanvasEl,"touchmove",this._onMouseMove),typeof Event!="undefined"&&"add"in Event&&(Event.add(this.upperCanvasEl,"gesture",this._onGesture),Event.add(this.upperCanvasEl,"drag",this._onDrag),Event.add(this.upperCanvasEl,"orientation",this._onOrientationChange),Event.add(this.upperCanvasEl,"shake",this._onShake))},_bindEvents:function(){this._onMouseDown=this._onMouseDown.bind(this),this._onMouseMove=this._onMouseMove.bind(this),this._onMouseUp=this._onMouseUp.bind(this),this._onResize=this._onResize.bind(this),this._onGesture=this._onGesture.bind(this),this._onDrag=this._onDrag.bind(this),this._onShake=this._onShake.bind(this),this._onOrientationChange=this._onOrientationChange.bind(this),this._onMouseWheel=this._onMouseWheel.bind(this)},removeListeners:function(){n(fabric.window,"resize",this._onResize),n(this.upperCanvasEl,"mousedown",this._onMouseDown),n(this.upperCanvasEl,"mousemove",this._onMouseMove),n(this.upperCanvasEl,"mousewheel",this._onMouseWheel),n(this.upperCanvasEl,"touchstart",this._onMouseDown),n(this.upperCanvasEl,"touchmove",this._onMouseMove),typeof Event!="undefined"&&"remove"in Event&&(Event.remove(this.upperCanvasEl,"gesture",this._onGesture),Event.remove(this.upperCanvasEl,"drag",this._onDrag),Event.remove(this.upperCanvasEl,"orientation",this._onOrientationChange),Event.remove(this.upperCanvasEl,"shake",this._onShake))},_onGesture:function(e,t){this.__onTransformGesture&&this.__onTransformGesture(e,t)},_onDrag:function(e,t){this.__onDrag&&this.__onDrag(e,t)},_onMouseWheel:function(e,t){this.__onMouseWheel&&this.__onMouseWheel(e,t)},_onOrientationChange:function(e,t){this.__onOrientationChange&&this.__onOrientationChange(e,t)},_onShake:function(e,t){this.__onShake&&this.__onShake(e,t)},_onMouseDown:function(e){this.__onMouseDown(e),t(fabric.document,"touchend",this._onMouseUp),t(fabric.document,"touchmove",this._onMouseMove),n(this.upperCanvasEl,"mousemove",this._onMouseMove),n(this.upperCanvasEl,"touchmove",this._onMouseMove),e.type==="touchstart"?n(this.upperCanvasEl,"mousedown",this._onMouseDown):(t(fabric.document,"mouseup",this._onMouseUp),t(fabric.document,"mousemove",this._onMouseMove))},_onMouseUp:function(e){this.__onMouseUp(e),n(fabric.document,"mouseup",this._onMouseUp),n(fabric.document,"touchend",this._onMouseUp),n(fabric.document,"mousemove",this._onMouseMove),n(fabric.document,"touchmove",this._onMouseMove),t(this.upperCanvasEl,"mousemove",this._onMouseMove),t(this.upperCanvasEl,"touchmove",this._onMouseMove);if(e.type==="touchend"){var r=this;setTimeout(function(){t(r.upperCanvasEl,"mousedown",r._onMouseDown)},400)}},_onMouseMove:function(e){!this.allowTouchScrolling&&e.preventDefault&&e.preventDefault(),this.__onMouseMove(e)},_onResize:function(){this.calcOffset()},_shouldRender:function(e,t){var n=this.getActiveGroup()||this.getActiveObject();return!!(e&&(e.isMoving||e!==n)||!e&&!!n||!e&&!n&&!this._groupSelector||t&&this._previousPointer&&this.selection&&(t.x!==this._previousPointer.x||t.y!==this._previousPointer.y))},__onMouseUp:function(e){var t;if(this.isDrawingMode&&this._isCurrentlyDrawing){this._onMouseUpInDrawingMode(e);return}this._currentTransform?(this._finalizeCurrentTransform(),t=this._currentTransform.target):t=this.findTarget(e,!0);var n=this._shouldRender(t,this.getPointer(e));this._maybeGroupObjects(e),t&&(t.isMoving=!1),n&&this.renderAll(),this._handleCursorAndEvent(e,t)},_handleCursorAndEvent:function(e,t){this._setCursorFromEvent(e,t);var n=this;setTimeout(function(){n._setCursorFromEvent(e,t)},50),this.fire("mouse:up",{target:t,e:e}),t&&t.fire("mouseup",{e:e})},_finalizeCurrentTransform:function(){var e=this._currentTransform,t=e.target;t._scaling&&(t._scaling=!1),t.setCoords(),this.stateful&&t.hasStateChanged()&&(this.fire("object:modified",{target:t}),t.fire("modified")),this._restoreOriginXY(t)},_restoreOriginXY:function(e){if(this._previousOriginX&&this._previousOriginY){var t=e.translateToOriginPoint(e.getCenterPoint(),this._previousOriginX,this._previousOriginY);e.originX=this._previousOriginX,e.originY=this._previousOriginY,e.left=t.x,e.top=t.y,this._previousOriginX=null,this._previousOriginY=null}},_onMouseDownInDrawingMode:function(e){this._isCurrentlyDrawing=!0,this.discardActiveObject(e).renderAll(),this.clipTo&&fabric.util.clipContext(this,this.contextTop);var t=fabric.util.invertTransform(this.viewportTransform),n=fabric.util.transformPoint(this.getPointer(e,!0),t);this.freeDrawingBrush.onMouseDown(n),this.fire("mouse:down",{e:e})},_onMouseMoveInDrawingMode:function(e){if(this._isCurrentlyDrawing){var t=fabric.util.invertTransform(this.viewportTransform),n=fabric.util.transformPoint(this.getPointer(e,!0),t);this.freeDrawingBrush.onMouseMove(n)}this.setCursor(this.freeDrawingCursor),this.fire("mouse:move",{e:e})},_onMouseUpInDrawingMode:function(e){this._isCurrentlyDrawing=!1,this.clipTo&&this.contextTop.restore(),this.freeDrawingBrush.onMouseUp(),this.fire("mouse:up",{e:e})},__onMouseDown:function(e){var t="which"in e?e.which===1:e.button===1;if(!t&&!fabric.isTouchSupported)return;if(this.isDrawingMode){this._onMouseDownInDrawingMode(e);return}if(this._currentTransform)return;var n=this.findTarget(e),r=this.getPointer(e,!0);this._previousPointer=r;var i=this._shouldRender(n,r),s=this._shouldGroup(e,n);this._shouldClearSelection(e,n)?this._clearSelection(e,n,r):s&&(this._handleGrouping(e,n),n=this.getActiveGroup()),n&&n.selectable&&!s&&(this._beforeTransform(e,n),this._setupCurrentTransform(e,n)),i&&this.renderAll(),this.fire("mouse:down",{target:n,e:e}),n&&n.fire("mousedown",{e:e})},_beforeTransform:function(e,t){var n;this.stateful&&t.saveState(),(n=t._findTargetCorner(this.getPointer(e)))&&this.onBeforeScaleRotate(t),t!==this.getActiveGroup()&&t!==this.getActiveObject()&&(this.deactivateAll(),this.setActiveObject(t,e))},_clearSelection:function(e,t,n){this.deactivateAllWithDispatch(e),t&&t.selectable?this.setActiveObject(t,e):this.selection&&(this._groupSelector={ex:n.x,ey:n.y,top:0,left:0})},_setOriginToCenter:function(e){this._previousOriginX=this._currentTransform.target.originX,this._previousOriginY=this._currentTransform.target.originY;var t=e.getCenterPoint();e.originX="center",e.originY="center",e.left=t.x,e.top=t.y,this._currentTransform.left=e.left,this._currentTransform.top=e.top},_setCenterToOrigin:function(e){var t=e.translateToOriginPoint(e.getCenterPoint(),this._previousOriginX,this._previousOriginY);e.originX=this._previousOriginX,e.originY=this._previousOriginY,e.left=t.x,e.top=t.y,this._previousOriginX=null,this._previousOriginY=null},__onMouseMove:function(e){var t,n;if(this.isDrawingMode){this._onMouseMoveInDrawingMode(e);return}var r=this._groupSelector;r?(n=this.getPointer(e,!0),r.left=n.x-r.ex,r.top=n.y-r.ey,this.renderTop()):this._currentTransform?this._transformObject(e):(t=this.findTarget(e),!t||t&&!t.selectable?this.setCursor(this.defaultCursor):this._setCursorFromEvent(e,t)),this.fire("mouse:move",{target:t,e:e}),t&&t.fire("mousemove",{e:e})},_transformObject:function(e){var t=this.getPointer(e),n=this._currentTransform;n.reset=!1,n.target.isMoving=!0,this._beforeScaleTransform(e,n),this._performTransformAction(e,n,t),this.renderAll()},_performTransformAction:function(e,t,n){var r=n.x,i=n.y,s=t.target,o=t.action;o==="rotate"?(this._rotateObject(r,i),this._fire("rotating",s,e)):o==="scale"?(this._onScale(e,t,r,i),this._fire("scaling",s,e)):o==="scaleX"?(this._scaleObject(r,i,"x"),this._fire("scaling",s,e)):o==="scaleY"?(this._scaleObject(r,i,"y"),this._fire("scaling",s,e)):(this._translateObject(r,i),this._fire("moving",s,e),this.setCursor(this.moveCursor))},_fire:function(e,t,n){this.fire("object:"+e,{target:t,e:n}),t.fire(e,{e:n})},_beforeScaleTransform:function(e,t){if(t.action==="scale"||t.action==="scaleX"||t.action==="scaleY"){var n=this._shouldCenterTransform(e,t.target);if(n&&(t.originX!=="center"||t.originY!=="center")||!n&&t.originX==="center"&&t.originY==="center")this._resetCurrentTransform(e),t.reset=!0}},_onScale:function(e,t,n,r){(e.shiftKey||this.uniScaleTransform)&&!t.target.get("lockUniScaling")?(t.currentAction="scale",this._scaleObject(n,r)):(!t.reset&&t.currentAction==="scale"&&this._resetCurrentTransform(e,t.target),t.currentAction="scaleEqually",this._scaleObject(n,r,"equally"))},_setCursorFromEvent:function(e,t){if(!t||!t.selectable)return this.setCursor(this.defaultCursor),!1;var n=this.getActiveGroup(),r=t._findTargetCorner&&(!n||!n.contains(t))&&t._findTargetCorner(this.getPointer(e,!0));return r?this._setCornerCursor(r,t):this.setCursor(t.hoverCursor||this.hoverCursor),!0},_setCornerCursor:function(t,n){if(t in e)this.setCursor(this._getRotatedCornerCursor(t,n));else{if(t!=="mtr"||!n.hasRotatingPoint)return this.setCursor(this.defaultCursor),!1;this.setCursor(this.rotationCursor)}},_getRotatedCornerCursor:function(t,n){var r=Math.round(n.getAngle()%360/45);return r<0&&(r+=8),r+=e[t],r%=8,this.cursorMap[r]}})}(),function(){var e=Math.min,t=Math.max;fabric.util.object.extend(fabric.Canvas.prototype,{_shouldGroup:function(e,t){var n=this.getActiveObject();return e.shiftKey&&(this.getActiveGroup()||n&&n!==t)&&this.selection},_handleGrouping:function(e,t){if(t===this.getActiveGroup()){t=this.findTarget(e,!0);if(!t||t.isType("group"))return}this.getActiveGroup()?this._updateActiveGroup(t,e):this._createActiveGroup(t,e),this._activeGroup&&this._activeGroup.saveCoords()},_updateActiveGroup:function(e,t){var n=this.getActiveGroup();if(n.contains(e)){n.removeWithUpdate(e),this._resetObjectTransform(n),e.set("active",!1);if(n.size()===1){this.discardActiveGroup(t),this.setActiveObject(n.item(0));return}}else n.addWithUpdate(e),this._resetObjectTransform(n);this.fire("selection:created",{target:n,e:t}),n.set("active",!0)},_createActiveGroup:function(e,t){if(this._activeObject&&e!==this._activeObject){var n=this._createGroup(e);n.addWithUpdate(),this.setActiveGroup(n),this._activeObject=null,this.fire("selection:created",{target:n,e:t})}e.set("active",!0)},_createGroup:function(e){var t=this.getObjects(),n=t.indexOf(this._activeObject)<t.indexOf(e),r=n?[this._activeObject,e]:[e,this._activeObject];return new fabric.Group(r,{originX:"center",originY:"center",canvas:this})},_groupSelectedObjects:function(e){var t=this._collectObjects();t.length===1?this.setActiveObject(t[0],e):t.length>1&&(t=new fabric.Group(t.reverse(),{originX:"center",originY:"center",canvas:this}),t.addWithUpdate(),this.setActiveGroup(t,e),t.saveCoords(),this.fire("selection:created",{target:t}),this.renderAll())},_collectObjects:function(){var n=[],r,i=this._groupSelector.ex,s=this._groupSelector.ey,o=i+this._groupSelector.left,u=s+this._groupSelector.top,a=new fabric.Point(e(i,o),e(s,u)),f=new fabric.Point(t(i,o),t(s,u)),l=i===o&&s===u;for(var c=this._objects.length;c--;){r=this._objects[c];if(!r||!r.selectable||!r.visible)continue;if(r.intersectsWithRect(a,f)||r.isContainedWithinRect(a,f)||r.containsPoint(a)||r.containsPoint(f)){r.set("active",!0),n.push(r);if(l)break}}return n},_maybeGroupObjects:function(e){this.selection&&this._groupSelector&&this._groupSelectedObjects(e);var t=this.getActiveGroup();t&&(t.setObjectsCoords().setCoords(),t.isMoving=!1,this.setCursor(this.defaultCursor)),this._groupSelector=null,this._currentTransform=null}})}(),fabric.util.object.extend(fabric.StaticCanvas.prototype,{toDataURL:function(e){e||(e={});var t=e.format||"png",n=e.quality||1,r=e.multiplier||1,i={left:e.left,top:e.top,width:e.width,height:e.height};return r!==1?this.__toDataURLWithMultiplier(t,n,i,r):this.__toDataURL(t,n,i)},__toDataURL:function(e,t,n){this.renderAll(!0);var r=this.upperCanvasEl||this.lowerCanvasEl,i=this.__getCroppedCanvas(r,n);e==="jpg"&&(e="jpeg");var s=fabric.StaticCanvas.supports("toDataURLWithQuality")?(i||r).toDataURL("image/"+e,t):(i||r).toDataURL("image/"+e);return this.contextTop&&this.clearContext(this.contextTop),this.renderAll(),i&&(i=null),s},__getCroppedCanvas:function(e,t){var n,r,i="left"in t||"top"in t||"width"in t||"height"in t;return i&&(n=fabric.util.createCanvasElement(),r=n.getContext("2d"),n.width=t.width||this.width,n.height=t.height||this.height,r.drawImage(e,-t.left||0,-t.top||0)),n},__toDataURLWithMultiplier:function(e,t,n,r){var i=this.getWidth(),s=this.getHeight(),o=i*r,u=s*r,a=this.getActiveObject(),f=this.getActiveGroup(),l=this.contextTop||this.contextContainer;r>1&&this.setWidth(o).setHeight(u),l.scale(r,r),n.left&&(n.left*=r),n.top&&(n.top*=r),n.width?n.width*=r:r<1&&(n.width=o),n.height?n.height*=r:r<1&&(n.height=u),f?this._tempRemoveBordersControlsFromGroup(f):a&&this.deactivateAll&&this.deactivateAll(),this.renderAll(!0);var c=this.__toDataURL(e,t,n);return this.width=i,this.height=s,l.scale(1/r,1/r),this.setWidth(i).setHeight(s),f?this._restoreBordersControlsOnGroup(f):a&&this.setActiveObject&&this.setActiveObject(a),this.contextTop&&this.clearContext(this.contextTop),this.renderAll(),c},toDataURLWithMultiplier:function(e,t,n){return this.toDataURL({format:e,multiplier:t,quality:n})},_tempRemoveBordersControlsFromGroup:function(e){e.origHasControls=e.hasControls,e.origBorderColor=e.borderColor,e.hasControls=!0,e.borderColor="rgba(0,0,0,0)",e.forEachObject(function(e){e.origBorderColor=e.borderColor,e.borderColor="rgba(0,0,0,0)"})},_restoreBordersControlsOnGroup:function(e){e.hideControls=e.origHideControls,e.borderColor=e.origBorderColor,e.forEachObject(function(e){e.borderColor=e.origBorderColor,delete e.origBorderColor})}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{loadFromDatalessJSON:function(e,t,n){return this.loadFromJSON(e,t,n)},loadFromJSON:function(e,t,n){if(!e)return;var r=typeof e=="string"?JSON.parse(e):e;this.clear();var i=this;return this._enlivenObjects(r.objects,function(){i._setBgOverlay(r,t)},n),this},_setBgOverlay:function(e,t){var n=this,r={backgroundColor:!1,overlayColor:!1,backgroundImage:!1,overlayImage:!1};if(!e.backgroundImage&&!e.overlayImage&&!e.background&&!e.overlay){t&&t();return}var i=function(){r.backgroundImage&&r.overlayImage&&r.backgroundColor&&r.overlayColor&&(n.renderAll(),t&&t())};this.__setBgOverlay("backgroundImage",e.backgroundImage,r,i),this.__setBgOverlay("overlayImage",e.overlayImage,r,i),this.__setBgOverlay("backgroundColor",e.background,r,i),this.__setBgOverlay("overlayColor",e.overlay,r,i),i()},__setBgOverlay:function(e,t,n,r){var i=this;if(!t){n[e]=!0;return}e==="backgroundImage"||e==="overlayImage"?fabric.Image.fromObject(t,function(t){i[e]=t,n[e]=!0,r&&r()}):this["set"+fabric.util.string.capitalize(e,!0)](t,function(){n[e]=!0,r&&r()})},_enlivenObjects:function(e,t,n){var r=this;if(!e||e.length===0){t&&t();return}var i=this.renderOnAddRemove;this.renderOnAddRemove=!1,fabric.util.enlivenObjects(e
+,function(e){e.forEach(function(e,t){r.insertAt(e,t,!0)}),r.renderOnAddRemove=i,t&&t()},null,n)},_toDataURL:function(e,t){this.clone(function(n){t(n.toDataURL(e))})},_toDataURLWithMultiplier:function(e,t,n){this.clone(function(r){n(r.toDataURLWithMultiplier(e,t))})},clone:function(e,t){var n=JSON.stringify(this.toJSON(t));this.cloneWithoutData(function(t){t.loadFromJSON(n,function(){e&&e(t)})})},cloneWithoutData:function(e){var t=fabric.document.createElement("canvas");t.width=this.getWidth(),t.height=this.getHeight();var n=new fabric.Canvas(t);n.clipTo=this.clipTo,this.backgroundImage?(n.setBackgroundImage(this.backgroundImage.src,function(){n.renderAll(),e&&e(n)}),n.backgroundImageOpacity=this.backgroundImageOpacity,n.backgroundImageStretch=this.backgroundImageStretch):e&&e(n)}}),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.toFixed,i=t.util.string.capitalize,s=t.util.degreesToRadians,o=t.StaticCanvas.supports("setLineDash");if(t.Object)return;t.Object=t.util.createClass({type:"object",originX:"left",originY:"top",top:0,left:0,width:0,height:0,scaleX:1,scaleY:1,flipX:!1,flipY:!1,opacity:1,angle:0,cornerSize:12,transparentCorners:!0,hoverCursor:null,padding:0,borderColor:"rgba(102,153,255,0.75)",cornerColor:"rgba(102,153,255,0.5)",centeredScaling:!1,centeredRotation:!0,fill:"rgb(0,0,0)",fillRule:"source-over",backgroundColor:"",stroke:null,strokeWidth:1,strokeDashArray:null,strokeLineCap:"butt",strokeLineJoin:"miter",strokeMiterLimit:10,shadow:null,borderOpacityWhenMoving:.4,borderScaleFactor:1,transformMatrix:null,minScaleLimit:.01,selectable:!0,evented:!0,visible:!0,hasControls:!0,hasBorders:!0,hasRotatingPoint:!0,rotatingPointOffset:40,perPixelTargetFind:!1,includeDefaultValues:!0,clipTo:null,lockMovementX:!1,lockMovementY:!1,lockRotation:!1,lockScalingX:!1,lockScalingY:!1,lockUniScaling:!1,stateProperties:"top left width height scaleX scaleY flipX flipY originX originY transformMatrix stroke strokeWidth strokeDashArray strokeLineCap strokeLineJoin strokeMiterLimit angle opacity fill fillRule shadow clipTo visible backgroundColor".split(" "),initialize:function(e){e&&this.setOptions(e)},_initGradient:function(e){e.fill&&e.fill.colorStops&&!(e.fill instanceof t.Gradient)&&this.set("fill",new t.Gradient(e.fill))},_initPattern:function(e){e.fill&&e.fill.source&&!(e.fill instanceof t.Pattern)&&this.set("fill",new t.Pattern(e.fill)),e.stroke&&e.stroke.source&&!(e.stroke instanceof t.Pattern)&&this.set("stroke",new t.Pattern(e.stroke))},_initClipping:function(e){if(!e.clipTo||typeof e.clipTo!="string")return;var n=t.util.getFunctionBody(e.clipTo);typeof n!="undefined"&&(this.clipTo=new Function("ctx",n))},setOptions:function(e){for(var t in e)this.set(t,e[t]);this._initGradient(e),this._initPattern(e),this._initClipping(e)},transform:function(e,t){this.group&&this.group.transform(e,t),e.globalAlpha=this.opacity;var n=t?this._getLeftTopCoords():this.getCenterPoint();e.translate(n.x,n.y),e.rotate(s(this.angle)),e.scale(this.scaleX*(this.flipX?-1:1),this.scaleY*(this.flipY?-1:1))},toObject:function(e){var n=t.Object.NUM_FRACTION_DIGITS,i={type:this.type,originX:this.originX,originY:this.originY,left:r(this.left,n),top:r(this.top,n),width:r(this.width,n),height:r(this.height,n),fill:this.fill&&this.fill.toObject?this.fill.toObject():this.fill,stroke:this.stroke&&this.stroke.toObject?this.stroke.toObject():this.stroke,strokeWidth:r(this.strokeWidth,n),strokeDashArray:this.strokeDashArray,strokeLineCap:this.strokeLineCap,strokeLineJoin:this.strokeLineJoin,strokeMiterLimit:r(this.strokeMiterLimit,n),scaleX:r(this.scaleX,n),scaleY:r(this.scaleY,n),angle:r(this.getAngle(),n),flipX:this.flipX,flipY:this.flipY,opacity:r(this.opacity,n),shadow:this.shadow&&this.shadow.toObject?this.shadow.toObject():this.shadow,visible:this.visible,clipTo:this.clipTo&&String(this.clipTo),backgroundColor:this.backgroundColor};return this.includeDefaultValues||(i=this._removeDefaultValues(i)),t.util.populateWithProperties(this,i,e),i},toDatalessObject:function(e){return this.toObject(e)},_removeDefaultValues:function(e){var n=t.util.getKlass(e.type).prototype,r=n.stateProperties;return r.forEach(function(t){e[t]===n[t]&&delete e[t]}),e},toString:function(){return"#<fabric."+i(this.type)+">"},get:function(e){return this[e]},_setObject:function(e){for(var t in e)this._set(t,e[t])},set:function(e,t){return typeof e=="object"?this._setObject(e):typeof t=="function"&&e!=="clipTo"?this._set(e,t(this.get(e))):this._set(e,t),this},_set:function(e,n){var i=e==="scaleX"||e==="scaleY";return i&&(n=this._constrainScale(n)),e==="scaleX"&&n<0?(this.flipX=!this.flipX,n*=-1):e==="scaleY"&&n<0?(this.flipY=!this.flipY,n*=-1):e==="width"||e==="height"?this.minScaleLimit=r(Math.min(.1,1/Math.max(this.width,this.height)),2):e==="shadow"&&n&&!(n instanceof t.Shadow)&&(n=new t.Shadow(n)),this[e]=n,this},toggle:function(e){var t=this.get(e);return typeof t=="boolean"&&this.set(e,!t),this},setSourcePath:function(e){return this.sourcePath=e,this},getViewportTransform:function(){return this.canvas&&this.canvas.viewportTransform?this.canvas.viewportTransform:[1,0,0,1,0,0]},render:function(e,n){if(this.width===0||this.height===0||!this.visible)return;e.save(),this._setupFillRule(e),this._transform(e,n),this._setStrokeStyles(e),this._setFillStyles(e);var r=this.transformMatrix;r&&this.group&&(e.translate(-this.group.width/2,-this.group.height/2),e.transform(r[0],r[1],r[2],r[3],r[4],r[5])),this._setShadow(e),this.clipTo&&t.util.clipContext(this,e),this._render(e,n),this.clipTo&&e.restore(),this._removeShadow(e),this._restoreFillRule(e),e.restore()},_transform:function(e,t){var n=this.transformMatrix;n&&!this.group&&e.setTransform(n[0],n[1],n[2],n[3],n[4],n[5]),t||this.transform(e)},_setStrokeStyles:function(e){this.stroke&&(e.lineWidth=this.strokeWidth,e.lineCap=this.strokeLineCap,e.lineJoin=this.strokeLineJoin,e.miterLimit=this.strokeMiterLimit,e.strokeStyle=this.stroke.toLive?this.stroke.toLive(e):this.stroke)},_setFillStyles:function(e){this.fill&&(e.fillStyle=this.fill.toLive?this.fill.toLive(e):this.fill)},_renderControls:function(e,n){var r=this.getViewportTransform();e.save();if(this.active&&!n){var i;this.group&&(i=t.util.transformPoint(this.group.getCenterPoint(),r),e.translate(i.x,i.y),e.rotate(s(this.group.angle))),i=t.util.transformPoint(this.getCenterPoint(),r,null!=this.group),this.group&&(i.x*=this.group.scaleX,i.y*=this.group.scaleY),e.translate(i.x,i.y),e.rotate(s(this.angle)),this.drawBorders(e),this.drawControls(e)}e.restore()},_setShadow:function(e){if(!this.shadow)return;e.shadowColor=this.shadow.color,e.shadowBlur=this.shadow.blur,e.shadowOffsetX=this.shadow.offsetX,e.shadowOffsetY=this.shadow.offsetY},_removeShadow:function(e){if(!this.shadow)return;e.shadowColor="",e.shadowBlur=e.shadowOffsetX=e.shadowOffsetY=0},_renderFill:function(e){if(!this.fill)return;this.fill.toLive&&(e.save(),e.translate(-this.width/2+this.fill.offsetX||0,-this.height/2+this.fill.offsetY||0)),this.fillRule==="destination-over"?e.fill("evenodd"):e.fill(),this.fill.toLive&&e.restore(),this.shadow&&!this.shadow.affectStroke&&this._removeShadow(e)},_renderStroke:function(e){if(!this.stroke)return;e.save(),this.strokeDashArray?(1&this.strokeDashArray.length&&this.strokeDashArray.push.apply(this.strokeDashArray,this.strokeDashArray),o?(e.setLineDash(this.strokeDashArray),this._stroke&&this._stroke(e)):this._renderDashedStroke&&this._renderDashedStroke(e),e.stroke()):this._stroke?this._stroke(e):e.stroke(),this._removeShadow(e),e.restore()},clone:function(e,n){return this.constructor.fromObject?this.constructor.fromObject(this.toObject(n),e):new t.Object(this.toObject(n))},cloneAsImage:function(e){var n=this.toDataURL();return t.util.loadImage(n,function(n){e&&e(new t.Image(n))}),this},toDataURL:function(e){e||(e={});var n=t.util.createCanvasElement(),r=this.getBoundingRect();n.width=r.width,n.height=r.height,t.util.wrapElement(n,"div");var i=new t.Canvas(n);e.format==="jpg"&&(e.format="jpeg"),e.format==="jpeg"&&(i.backgroundColor="#fff");var s={active:this.get("active"),left:this.getLeft(),top:this.getTop()};this.set("active",!1),this.setPositionByOrigin(new t.Point(n.width/2,n.height/2),"center","center");var o=this.canvas;i.add(this);var u=i.toDataURL(e);return this.set(s).setCoords(),this.canvas=o,i.dispose(),i=null,u},isType:function(e){return this.type===e},complexity:function(){return 0},toJSON:function(e){return this.toObject(e)},setGradient:function(e,n){n||(n={});var r={colorStops:[]};r.type=n.type||(n.r1||n.r2?"radial":"linear"),r.coords={x1:n.x1,y1:n.y1,x2:n.x2,y2:n.y2};if(n.r1||n.r2)r.coords.r1=n.r1,r.coords.r2=n.r2;for(var i in n.colorStops){var s=new t.Color(n.colorStops[i]);r.colorStops.push({offset:i,color:s.toRgb(),opacity:s.getAlpha()})}return this.set(e,t.Gradient.forObject(this,r))},setPatternFill:function(e){return this.set("fill",new t.Pattern(e))},setShadow:function(e){return this.set("shadow",e?new t.Shadow(e):null)},setColor:function(e){return this.set("fill",e),this},setAngle:function(e){var t=(this.originX!=="center"||this.originY!=="center")&&this.centeredRotation;return t&&this._setOriginToCenter(),this.set("angle",e),t&&this._resetOrigin(),this},centerH:function(){return this.canvas.centerObjectH(this),this},centerV:function(){return this.canvas.centerObjectV(this),this},center:function(){return this.canvas.centerObject(this),this},remove:function(){return this.canvas.remove(this),this},getLocalPointer:function(e,t){t=t||this.canvas.getPointer(e);var n=this.translateToOriginPoint(this.getCenterPoint(),"left","top");return{x:t.x-n.x,y:t.y-n.y}},_setupFillRule:function(e){this.fillRule&&(this._prevFillRule=e.globalCompositeOperation,e.globalCompositeOperation=this.fillRule)},_restoreFillRule:function(e){this.fillRule&&this._prevFillRule&&(e.globalCompositeOperation=this._prevFillRule)}}),t.util.createAccessors(t.Object),t.Object.prototype.rotate=t.Object.prototype.setAngle,n(t.Object.prototype,t.Observable),t.Object.NUM_FRACTION_DIGITS=2,t.Object.__uid=0}(typeof exports!="undefined"?exports:this),function(){var e=fabric.util.degreesToRadians;fabric.util.object.extend(fabric.Object.prototype,{translateToCenterPoint:function(t,n,r){var i=t.x,s=t.y,o=this.stroke?this.strokeWidth:0;return n==="left"?i=t.x+(this.getWidth()+o*this.scaleX)/2:n==="right"&&(i=t.x-(this.getWidth()+o*this.scaleX)/2),r==="top"?s=t.y+(this.getHeight()+o*this.scaleY)/2:r==="bottom"&&(s=t.y-(this.getHeight()+o*this.scaleY)/2),fabric.util.rotatePoint(new fabric.Point(i,s),t,e(this.angle))},translateToOriginPoint:function(t,n,r){var i=t.x,s=t.y,o=this.stroke?this.strokeWidth:0;return n==="left"?i=t.x-(this.getWidth()+o*this.scaleX)/2:n==="right"&&(i=t.x+(this.getWidth()+o*this.scaleX)/2),r==="top"?s=t.y-(this.getHeight()+o*this.scaleY)/2:r==="bottom"&&(s=t.y+(this.getHeight()+o*this.scaleY)/2),fabric.util.rotatePoint(new fabric.Point(i,s),t,e(this.angle))},getCenterPoint:function(){var e=new fabric.Point(this.left,this.top);return this.translateToCenterPoint(e,this.originX,this.originY)},getPointByOrigin:function(e,t){var n=this.getCenterPoint();return this.translateToOriginPoint(n,e,t)},toLocalPoint:function(t,n,r){var i=this.getCenterPoint(),s=this.stroke?this.strokeWidth:0,o,u;return n&&r?(n==="left"?o=i.x-(this.getWidth()+s*this.scaleX)/2:n==="right"?o=i.x+(this.getWidth()+s*this.scaleX)/2:o=i.x,r==="top"?u=i.y-(this.getHeight()+s*this.scaleY)/2:r==="bottom"?u=i.y+(this.getHeight()+s*this.scaleY)/2:u=i.y):(o=this.left,u=this.top),fabric.util.rotatePoint(new fabric.Point(t.x,t.y),i,-e(this.angle)).subtractEquals(new fabric.Point(o,u))},setPositionByOrigin:function(e,t,n){var r=this.translateToCenterPoint(e,t,n),i=this.translateToOriginPoint(r,this.originX,this.originY);this.set("left",i.x),this.set("top",i.y)},adjustPosition:function(t){var n=e(this.angle),r=this.getWidth()/2,i=Math.cos(n)*r,s=Math.sin(n)*r,o=this.getWidth(),u=Math.cos(n)*o,a=Math.sin(n)*o;this.originX==="center"&&t==="left"||this.originX==="right"&&t==="center"?(this.left-=i,this.top-=s):this.originX==="left"&&t==="center"||this.originX==="center"&&t==="right"?(this.left+=i,this.top+=s):this.originX==="left"&&t==="right"?(this.left+=u,this.top+=a):this.originX==="right"&&t==="left"&&(this.left-=u,this.top-=a),this.setCoords(),this.originX=t},_setOriginToCenter:function(){this._originalOriginX=this.originX,this._originalOriginY=this.originY;var e=this.getCenterPoint();this.originX="center",this.originY="center",this.left=e.x,this.top=e.y},_resetOrigin:function(){var e=this.translateToOriginPoint(this.getCenterPoint(),this._originalOriginX,this._originalOriginY);this.originX=this._originalOriginX,this.originY=this._originalOriginY,this.left=e.x,this.top=e.y,this._originalOriginX=null,this._originalOriginY=null},_getLeftTopCoords:function(){return this.translateToOriginPoint(this.getCenterPoint(),"left","center")}})}(),function(){var e=fabric.util.degreesToRadians;fabric.util.object.extend(fabric.Object.prototype,{oCoords:null,intersectsWithRect:function(e,t){var n=this.oCoords,r=new fabric.Point(n.tl.x,n.tl.y),i=new fabric.Point(n.tr.x,n.tr.y),s=new fabric.Point(n.bl.x,n.bl.y),o=new fabric.Point(n.br.x,n.br.y),u=fabric.Intersection.intersectPolygonRectangle([r,i,o,s],e,t);return u.status==="Intersection"},intersectsWithObject:function(e){function t(e){return{tl:new fabric.Point(e.tl.x,e.tl.y),tr:new fabric.Point(e.tr.x,e.tr.y),bl:new fabric.Point(e.bl.x,e.bl.y),br:new fabric.Point(e.br.x,e.br.y)}}var n=t(this.oCoords),r=t(e.oCoords),i=fabric.Intersection.intersectPolygonPolygon([n.tl,n.tr,n.br,n.bl],[r.tl,r.tr,r.br,r.bl]);return i.status==="Intersection"},isContainedWithinObject:function(e){var t=e.getBoundingRect(),n=new fabric.Point(t.left,t.top),r=new fabric.Point(t.left+t.width,t.top+t.height);return this.isContainedWithinRect(n,r)},isContainedWithinRect:function(e,t){var n=this.getBoundingRect();return n.left>=e.x&&n.left+n.width<=t.x&&n.top>=e.y&&n.top+n.height<=t.y},containsPoint:function(e){var t=this._getImageLines(this.oCoords),n=this._findCrossPoints(e,t);return n!==0&&n%2===1},_getImageLines:function(e){return{topline:{o:e.tl,d:e.tr},rightline:{o:e.tr,d:e.br},bottomline:{o:e.br,d:e.bl},leftline:{o:e.bl,d:e.tl}}},_findCrossPoints:function(e,t){var n,r,i,s,o,u,a=0,f;for(var l in t){f=t[l];if(f.o.y<e.y&&f.d.y<e.y)continue;if(f.o.y>=e.y&&f.d.y>=e.y)continue;f.o.x===f.d.x&&f.o.x>=e.x?(o=f.o.x,u=e.y):(n=0,r=(f.d.y-f.o.y)/(f.d.x-f.o.x),i=e.y-n*e.x,s=f.o.y-r*f.o.x,o=-(i-s)/(n-r),u=i+n*o),o>=e.x&&(a+=1);if(a===2)break}return a},getBoundingRectWidth:function(){return this.getBoundingRect().width},getBoundingRectHeight:function(){return this.getBoundingRect().height},getBoundingRect:function(){this.oCoords||this.setCoords();var e=[this.oCoords.tl.x,this.oCoords.tr.x,this.oCoords.br.x,this.oCoords.bl.x],t=fabric.util.array.min(e),n=fabric.util.array.max(e),r=Math.abs(t-n),i=[this.oCoords.tl.y,this.oCoords.tr.y,this.oCoords.br.y,this.oCoords.bl.y],s=fabric.util.array.min(i),o=fabric.util.array.max(i),u=Math.abs(s-o);return{left:t,top:s,width:r,height:u}},getWidth:function(){return this.width*this.scaleX},getHeight:function(){return this.height*this.scaleY},_constrainScale:function(e){return Math.abs(e)<this.minScaleLimit?e<0?-this.minScaleLimit:this.minScaleLimit:e},scale:function(e){return e=this._constrainScale(e),e<0&&(this.flipX=!this.flipX,this.flipY=!this.flipY,e*=-1),this.scaleX=e,this.scaleY=e,this.setCoords(),this},scaleToWidth:function(e){var t=this.getBoundingRectWidth()/this.getWidth();return this.scale(e/this.width/t)},scaleToHeight:function(e){var t=this.getBoundingRectHeight()/this.getHeight();return this.scale(e/this.height/t)},setCoords:function(){var t=this.strokeWidth>1?this.strokeWidth:0,n=e(this.angle),r=this.getViewportTransform(),i=function(e){return fabric.util.transformPoint(e,r)},s=this.width,o=this.height,u=this.strokeLineCap==="round"||this.strokeLineCap==="square",a=this.type==="line"&&this.width===1,f=this.type==="line"&&this.height===1,l=u&&f||this.type!=="line",c=u&&a||this.type!=="line";a?s=t:f&&(o=t),l&&(s+=t),c&&(o+=t),this.currentWidth=s*this.scaleX,this.currentHeight=o*this.scaleY,this.currentWidth<0&&(this.currentWidth=Math.abs(this.currentWidth));var h=Math.sqrt(Math.pow(this.currentWidth/2,2)+Math.pow(this.currentHeight/2,2)),p=Math.atan(isFinite(this.currentHeight/this.currentWidth)?this.currentHeight/this.currentWidth:0),d=Math.cos(p+n)*h,v=Math.sin(p+n)*h,m=Math.sin(n),g=Math.cos(n),y=this.getCenterPoint(),b=new fabric.Point(this.currentWidth,this.currentHeight),w=new fabric.Point(y.x-d,y.y-v),E=new fabric.Point(w.x+b.x*g,w.y+b.x*m),S=new fabric.Point(w.x-b.y*m,w.y+b.y*g),x=new fabric.Point(w.x+b.x/2*g,w.y+b.x/2*m),T=i(w),N=i(E),C=i(new fabric.Point(E.x-b.y*m,E.y+b.y*g)),k=i(S),L=i(new fabric.Point(w.x-b.y/2*m,w.y+b.y/2*g)),A=i(x),O=i(new fabric.Point(E.x-b.y/2*m,E.y+b.y/2*g)),M=i(new fabric.Point(S.x+b.x/2*g,S.y+b.x/2*m)),_=i(new fabric.Point(x.x,x.y)),D=Math.cos(p+n)*this.padding*Math.sqrt(2),P=Math.sin(p+n)*this.padding*Math.sqrt(2);return T=T.add(new fabric.Point(-D,-P)),N=N.add(new fabric.Point(P,-D)),C=C.add(new fabric.Point(D,P)),k=k.add(new fabric.Point(-P,D)),L=L.add(new fabric.Point((-D-P)/2,(-P+D)/2)),A=A.add(new fabric.Point((P-D)/2,-(P+D)/2)),O=O.add(new fabric.Point((P+D)/2,(P-D)/2)),M=M.add(new fabric.Point((D-P)/2,(D+P)/2)),_=_.add(new fabric.Point((P-D)/2,-(P+D)/2)),this.oCoords={tl:T,tr:N,br:C,bl:k,ml:L,mt:A,mr:O,mb:M,mtr:_},this._setCornerCoords&&this._setCornerCoords(),this}})}(),fabric.util.object.extend(fabric.Object.prototype,{sendToBack:function(){return this.group?fabric.StaticCanvas.prototype.sendToBack.call(this.group,this):this.canvas.sendToBack(this),this},bringToFront:function(){return this.group?fabric.StaticCanvas.prototype.bringToFront.call(this.group,this):this.canvas.bringToFront(this),this},sendBackwards:function(e){return this.group?fabric.StaticCanvas.prototype.sendBackwards.call(this.group,this,e):this.canvas.sendBackwards(this,e),this},bringForward:function(e){return this.group?fabric.StaticCanvas.prototype.bringForward.call(this.group,this,e):this.canvas.bringForward(this,e),this},moveTo:function(e){return this.group?fabric.StaticCanvas.prototype.moveTo.call(this.group,this,e):this.canvas.moveTo(this,e),this}}),fabric.util.object.extend(fabric.Object.prototype,{getSvgStyles:function(){var e=this.fill?this.fill.toLive?"url(#SVGID_"+this.fill.id+")":this.fill:"none",t=this.stroke?this.stroke.toLive?"url(#SVGID_"+this.stroke.id+")":this.stroke:"none",n=this.strokeWidth?this.strokeWidth:"0",r=this.strokeDashArray?this.strokeDashArray.join(" "):"",i=this.strokeLineCap?this.strokeLineCap:"butt",s=this.strokeLineJoin?this.strokeLineJoin:"miter",o=this.strokeMiterLimit?this.strokeMiterLimit:"4",u=typeof this.opacity!="undefined"?this.opacity:"1",a=this.visible?"":" visibility: hidden;",f=this.shadow&&this.type!=="text"?"filter: url(#SVGID_"+this.shadow.id+");":"";return["stroke: ",t,"; ","stroke-width: ",n,"; ","stroke-dasharray: ",r,"; ","stroke-linecap: ",i,"; ","stroke-linejoin: ",s,"; ","stroke-miterlimit: ",o,"; ","fill: ",e,"; ","opacity: ",u,";",f,a].join("")},getSvgTransform:function(){var e=fabric.util.toFixed,t=this.getAngle(),n=this.getViewportTransform(),r=fabric.util.transformPoint(this.getCenterPoint(),n),i=fabric.Object.NUM_FRACTION_DIGITS,s="translate("+e(r.x,i)+" "+e(r.y,i)+")",o=t!==0?" rotate("+e(t,i)+")":"",u=this.scaleX===1&&this.scaleY===1&&n[0]===1&&n[3]===1?"":" scale("+e(this.scaleX*n[0],i)+" "+e(this.scaleY*n[3],i)+")",a=this.flipX?"matrix(-1 0 0 1 0 0) ":"",f=this.flipY?"matrix(1 0 0 -1 0 0)":"";return[s,o,u,a,f].join("")},_createBaseSVGMarkup:function(){var e=[];return this.fill&&this.fill.toLive&&e.push(this.fill.toSVG(this,!1)),this.stroke&&this.stroke.toLive&&e.push(this.stroke.toSVG(this,!1)),this.shadow&&e.push(this.shadow.toSVG(this)),e}}),fabric.util.object.extend(fabric.Object.prototype,{hasStateChanged:function(){return this.stateProperties.some(function(e){return this.get(e)!==this.originalState[e]},this)},saveState:function(e){return this.stateProperties.forEach(function(e){this.originalState[e]=this.get(e)},this),e&&e.stateProperties&&e.stateProperties.forEach(function(e){this.originalState[e]=this.get(e)},this),this},setupState:function(){return this.originalState={},this.saveState(),this}}),function(){var e=fabric.util.degreesToRadians,t=function(){return typeof G_vmlCanvasManager!="undefined"};fabric.util.object.extend(fabric.Object.prototype,{_controlsVisibility:null,_findTargetCorner:function(e){if(!this.hasControls||!this.active)return!1;var t=e.x,n=e.y,r,i;for(var s in this.oCoords){if(!this.isControlVisible(s))continue;if(s==="mtr"&&!this.hasRotatingPoint)continue;if(!(!this.get("lockUniScaling")||s!=="mt"&&s!=="mr"&&s!=="mb"&&s!=="ml"))continue;i=this._getImageLines(this.oCoords[s].corner),r=this._findCrossPoints({x:t,y:n},i);if(r!==0&&r%2===1)return this.__corner=s,s}return!1},_setCornerCoords:function(){var t=this.oCoords,n=e(this.angle),r=e(45-this.angle),i=Math.sqrt(2*Math.pow(this.cornerSize,2))/2,s=i*Math.cos(r),o=i*Math.sin(r),u=Math.sin(n),a=Math.cos(n);t.tl.corner={tl:{x:t.tl.x-o,y:t.tl.y-s},tr:{x:t.tl.x+s,y:t.tl.y-o},bl:{x:t.tl.x-s,y:t.tl.y+o},br:{x:t.tl.x+o,y:t.tl.y+s}},t.tr.corner={tl:{x:t.tr.x-o,y:t.tr.y-s},tr:{x:t.tr.x+s,y:t.tr.y-o},br:{x:t.tr.x+o,y:t.tr.y+s},bl:{x:t.tr.x-s,y:t.tr.y+o}},t.bl.corner={tl:{x:t.bl.x-o,y:t.bl.y-s},bl:{x:t.bl.x-s,y:t.bl.y+o},br:{x:t.bl.x+o,y:t.bl.y+s},tr:{x:t.bl.x+s,y:t.bl.y-o}},t.br.corner={tr:{x:t.br.x+s,y:t.br.y-o},bl:{x:t.br.x-s,y:t.br.y+o},br:{x:t.br.x+o,y:t.br.y+s},tl:{x:t.br.x-o,y:t.br.y-s}},t.ml.corner={tl:{x:t.ml.x-o,y:t.ml.y-s},tr:{x:t.ml.x+s,y:t.ml.y-o},bl:{x:t.ml.x-s,y:t.ml.y+o},br:{x:t.ml.x+o,y:t.ml.y+s}},t.mt.corner={tl:{x:t.mt.x-o,y:t.mt.y-s},tr:{x:t.mt.x+s,y:t.mt.y-o},bl:{x:t.mt.x-s,y:t.mt.y+o},br:{x:t.mt.x+o,y:t.mt.y+s}},t.mr.corner={tl:{x:t.mr.x-o,y:t.mr.y-s},tr:{x:t.mr.x+s,y:t.mr.y-o},bl:{x:t.mr.x-s,y:t.mr.y+o},br:{x:t.mr.x+o,y:t.mr.y+s}},t.mb.corner={tl:{x:t.mb.x-o,y:t.mb.y-s},tr:{x:t.mb.x+s,y:t.mb.y-o},bl:{x:t.mb.x-s,y:t.mb.y+o},br:{x:t.mb.x+o,y:t.mb.y+s}},t.mtr.corner={tl:{x:t.mtr.x-o+u*this.rotatingPointOffset,y:t.mtr.y-s-a*this.rotatingPointOffset},tr:{x:t.mtr.x+s+u*this.rotatingPointOffset,y:t.mtr.y-o-a*this.rotatingPointOffset},bl:{x:t.mtr.x-s+u*this.rotatingPointOffset,y:t.mtr.y+o-a*this.rotatingPointOffset},br:{x:t.mtr.x+o+u*this.rotatingPointOffset,y:t.mtr.y+s-a*this.rotatingPointOffset}}},drawBorders:function(e){if(!this.hasBorders)return this;var t=this.padding,n=t*2,r=this.getViewportTransform();e.save(),e.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1,e.strokeStyle=this.borderColor;var i=1/this._constrainScale(this.scaleX),s=1/this._constrainScale(this.scaleY);e.lineWidth=1/this.borderScaleFactor;var o=this.getWidth(),u=this.getHeight(),a=this.strokeWidth>1?this.strokeWidth:0,f=this.strokeLineCap==="round"||this.strokeLineCap==="square",l=this.type==="line"&&this.width===1,c=this.type==="line"&&this.height===1,h=f&&c||this.type!=="line",p=f&&l||this.type!=="line";l?o=a/i:c&&(u=a/s),h&&(o+=a/i),p&&(u+=a/s);var d=fabric.util.transformPoint(new fabric.Point(o,u),r,!0),v=d.x,m=d.y;this.group&&(v*=this.group.scaleX,m*=this.group.scaleY),e.strokeRect(~~(-(v/2)-t)-.5,~~(-(m/2)-t)-.5,~~(v+n)+1,~~(m+n)+1);if(this.hasRotatingPoint&&this.isControlVisible("mtr")&&!this.get("lockRotation")&&this.hasControls){var g=(this.flipY?m+t*2:-m-t*2)/2;e.beginPath(),e.moveTo(0,g),e.lineTo(0,g+(this.flipY?this.rotatingPointOffset:-this.rotatingPointOffset)),e.closePath(),e.stroke()}return e.restore(),this},drawControls:function(e){if(!this.hasControls)return this;var t=this.cornerSize,n=t/2,r=this.getViewportTransform(),i=this.strokeWidth>1?this.strokeWidth:0,s=this.width,o=this.height,u=this.strokeLineCap==="round"||this.strokeLineCap==="square",a=this.type==="line"&&this.width===1,f=this.type==="line"&&this.height===1,l=u&&f||this.type!=="line",c=u&&a||this.type!=="line";a?s=i:f&&(o=i),l&&(s+=i),c&&(o+=i),s*=this.scaleX,o*=this.scaleY;var h=fabric.util.transformPoint(new fabric.Point(s,o),r,!0),p=h.x,d=h.y,v=-(p/2),m=-(d/2),g=this.padding,y=n,b=n-t,w=this.transparentCorners?"strokeRect":"fillRect";return e.save(),e.lineWidth=1,e.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1,e.strokeStyle=e.fillStyle=this.cornerColor,this._drawControl("tl",e,w,v-y-g,m-y-g),this._drawControl("tr",e,w,v+p-y+g,m-y-g),this._drawControl("bl",e,w,v-y-g,m+d+b+g),this._drawControl("br",e,w,v+p+b+g,m+d+b+g),this.get("lockUniScaling")||(this._drawControl("mt",e,w,v+p/2-y,m-y-g),this._drawControl("mb",e,w,v+p/2-y,m+d+b+g),this._drawControl("mr",e,w,v+p+b+g,m+d/2-y),this._drawControl("ml",e,w,v-y-g,m+d/2-y)),this.hasRotatingPoint&&this._drawControl("mtr",e,w,v+p/2-y,this.flipY?m+d+this.rotatingPointOffset-this.cornerSize/2+g:m-this.rotatingPointOffset-this.cornerSize/2-g),e.restore(),this},_drawControl:function(e,n,r,i,s){var o=this.cornerSize;this.isControlVisible(e)&&(t()||this.transparentCorners||n.clearRect(i,s,o,o),n[r](i,s,o,o))},isControlVisible:function(e){return this._getControlsVisibility()[e]},setControlVisible:function(e,t){return this._getControlsVisibility()[e]=t,this},setControlsVisibility:function(e){e||(e={});for(var t in e)this.setControlVisible(t,e[t]);return this},_getControlsVisibility:function(){return this._controlsVisibility||(this._controlsVisibility={tl:!0,tr:!0,br:!0,bl:!0,ml:!0,mt:!0,mr:!0,mb:!0,mtr:!0}),this._controlsVisibility}})}(),fabric.util.object.extend(fabric.StaticCanvas.prototype,{FX_DURATION:500,fxCenterObjectH:function(e,t){t=t||{};var n=function(){},r=t.onComplete||n,i=t.onChange||n,s=this;return fabric.util.animate({startValue:e.get("left"),endValue:this.getCenter().left,duration:this.FX_DURATION,onChange:function(t){e.set("left",t),s.renderAll(),i()},onComplete:function(){e.setCoords(),r()}}),this},fxCenterObjectV:function(e,t){t=t||{};var n=function(){},r=t.onComplete||n,i=t.onChange||n,s=this;return fabric.util.animate({startValue:e.get("top"),endValue:this.getCenter().top,duration:this.FX_DURATION,onChange:function(t){e.set("top",t),s.renderAll(),i()},onComplete:function(){e.setCoords(),r()}}),this},fxRemove:function(e,t){t=t||{};var n=function(){},r=t.onComplete||n,i=t.onChange||n,s=this;return fabric.util.animate({startValue:e.get("opacity"),endValue:0,duration:this.FX_DURATION,onStart:function(){e.set("active",!1)},onChange:function(t){e.set("opacity",t),s.renderAll(),i()},onComplete:function(){s.remove(e),r()}}),this}}),fabric.util.object.extend(fabric.Object.prototype,{animate:function(){if(arguments[0]&&typeof arguments[0]=="object"){var e=[],t,n;for(t in arguments[0])e.push(t);for(var r=0,i=e.length;r<i;r++)t=e[r],n=r!==i-1,this._animate(t,arguments[0][t],arguments[1],n)}else this._animate.apply(this,arguments);return this},_animate:function(e,t,n,r){var i=this,s;t=t.toString(),n?n=fabric.util.object.clone(n):n={},~e.indexOf(".")&&(s=e.split("."));var o=s?this.get(s[0])[s[1]]:this.get(e);"from"in n||(n.from=o),~t.indexOf("=")?t=o+parseFloat(t.replace("=","")):t=parseFloat(t),fabric.util.animate({startValue:n.from,endValue:t,byValue:n.by,easing:n.easing,duration:n.duration,abort:n.abort&&function(){return n.abort.call(i)},onChange:function(t){s?i[s[0]][s[1]]=t:i.set(e,t);if(r)return;n.onChange&&n.onChange()},onComplete:function(){if(r)return;i.setCoords(),n.onComplete&&n.onComplete()}})}}),function(e){"use strict";function s(e,t){var n=e.origin,r=e.axis1,i=e.axis2,s=e.dimension,o=t.nearest,u=t.center,a=t.farthest;return function(){switch(this.get(n)){case o:return Math.min(this.get(r),this.get(i));case u:return Math.min(this.get(r),this.get(i))+.5*this.get(s);case a:return Math.max(this.get(r),this.get(i))}}}var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r={x1:1,x2:1,y1:1,y2:1},i=t.StaticCanvas.supports("setLineDash");if(t.Line){t.warn("fabric.Line is already defined");return}t.Line=t.util.createClass(t.Object,{type:"line",x1:0,y1:0,x2:0,y2:0,initialize:function(e,t){t=t||{},e||(e=[0,0,0,0]),this.callSuper("initialize",t),this.set("x1",e[0]),this.set("y1",e[1]),this.set("x2",e[2]),this.set("y2",e[3]),this._setWidthHeight(t)},_setWidthHeight:function(e){e||(e={}),this.width=Math.abs(this.x2-this.x1)||1,this.height=Math.abs(this.y2-this.y1)||1,this.left="left"in e?e.left:this._getLeftToOriginX(),this.top="top"in e?e.top:this._getTopToOriginY()},_set:function(e,t){return this[e]=t,typeof r[e]!="undefined"&&this._setWidthHeight(),this},_getLeftToOriginX:s({origin:"originX",axis1:"x1",axis2:"x2",dimension:"width"},{nearest:"left",center:"center",farthest:"right"}),_getTopToOriginY:s({origin:"originY",axis1:"y1",axis2:"y2",dimension:"height"},{nearest:"top",center:"center",farthest:"bottom"}),_render:function(e){e.beginPath();var t=this.group&&this.group.type==="path-group";if(t&&!this.transformMatrix){var n=this.getCenterPoint();e.translate(-this.group.width/2+n.x,-this.group.height/2+n.y)}if(!this.strokeDashArray||this.strokeDashArray&&i){var r=this.x1<=this.x2?-1:1,s=this.y1<=this.y2?-1:1;e.moveTo(this.width===1?0:r*this.width/2,this.height===1?0:s*this.height/2),e.lineTo(this.width===1?0:r*-1*this.width/2,this.height===1?0:s*-1*this.height/2)}e.lineWidth=this.strokeWidth;var o=e.strokeStyle;e.strokeStyle=this.stroke||e.fillStyle,this.stroke&&this._renderStroke(e),e.strokeStyle=o},_renderDashedStroke:function(e){var n=this.x1<=this.x2?-1:1,r=this.y1<=this.y2?-1:1,i=this.width===1?0:n*this.width/2,s=this.height===1?0:r*this.height/2;e.beginPath(),t.util.drawDashedLine(e,i,s,-i,-s,this.strokeDashArray),e.closePath()},toObject:function(e){return n(this.callSuper("toObject",e),{x1:this.get("x1"),y1:this.get("y1"),x2:this.get("x2"),y2:this.get("y2")})},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<line ",'x1="',this.get("x1"),'" y1="',this.get("y1"),'" x2="',this.get("x2"),'" y2="',this.get("y2"),'" style="',this.getSvgStyles(),'"/>'),e?e(t.join("")):t.join("")},complexity:function(){return 1}}),t.Line.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("x1 y1 x2 y2".split(" ")),t.Line.fromElement=function(e,r){var i=t.parseAttributes(e,t.Line.ATTRIBUTE_NAMES),s=[i.x1||0,i.y1||0,i.x2||0,i.y2||0];return new t.Line(s,n(i,r))},t.Line.fromObject=function(e){var n=[e.x1,e.y1,e.x2,e.y2];return new t.Line(n,e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function i(e){return"radius"in e&&e.radius>0}var t=e.fabric||(e.fabric={}),n=Math.PI*2,r=t.util.object.extend;if(t.Circle){t.warn("fabric.Circle is already defined.");return}t.Circle=t.util.createClass(t.Object,{type:"circle",radius:0,initialize:function(e){e=e||{},this.set("radius",e.radius||0),this.callSuper("initialize",e)},_set:function(e,t){return this.callSuper("_set",e,t),e==="radius"&&this.setRadius(t),this},toObject:function(e){return r(this.callSuper("toObject",e),{radius:this.get("radius")})},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<circle ",'cx="0" cy="0" ','r="',this.radius,'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},_render:function(e,t){e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,e.arc(t?this.left:0,t?this.top:0,this.radius,0,n,!1),this._renderFill(e),this.stroke&&this._renderStroke(e)},getRadiusX:function(){return this.get("radius")*this.get("scaleX")},getRadiusY:function(){return this.get("radius")*this.get("scaleY")},setRadius:function(e){this.radius=e,this.set("width",e*2).set("height",e*2)},complexity:function(){return 1}}),t.Circle.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("cx cy r".split(" ")),t.Circle.fromElement=function(e,n){n||(n={});var s=t.parseAttributes(e,t.Circle.ATTRIBUTE_NAMES);if(!i(s))throw new Error("value of `r` attribute is required and can not be negative");"left"in s||(s.left=0),"top"in s||(s.top=0),"transformMatrix"in s||(s.left-=n.width?n.width/2:0,s.top-=n.height?n.height/2:0);var o=new t.Circle(r(s,n));return o.cx=parseFloat(e.getAttribute("cx"))||0,o.cy=parseFloat(e.getAttribute("cy"))||0,o},t.Circle.fromObject=function(e){return new t.Circle(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});if(t.Triangle){t.warn("fabric.Triangle is already defined");return}t.Triangle=t.util.createClass(t.Object,{type:"triangle",initialize:function(e){e=e||{},this.callSuper("initialize",e),this.set("width",e.width||100).set("height",e.height||100)},_render:function(e){var t=this.width/2,n=this.height/2;e.beginPath(),e.moveTo(-t,n),e.lineTo(0,-n),e.lineTo(t,n),e.closePath(),this._renderFill(e),this._renderStroke(e)},_renderDashedStroke:function(e){var n=this.width/2,r=this.height/2;e.beginPath(),t.util.drawDashedLine(e,-n,r,0,-r,this.strokeDashArray),t.util.drawDashedLine(e,0,-r,n,r,this.strokeDashArray),t.
+util.drawDashedLine(e,n,r,-n,r,this.strokeDashArray),e.closePath()},toSVG:function(e){var t=this._createBaseSVGMarkup(),n=this.width/2,r=this.height/2,i=[-n+" "+r,"0 "+ -r,n+" "+r].join(",");return t.push("<polygon ",'points="',i,'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},complexity:function(){return 1}}),t.Triangle.fromObject=function(e){return new t.Triangle(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=Math.PI*2,r=t.util.object.extend;if(t.Ellipse){t.warn("fabric.Ellipse is already defined.");return}t.Ellipse=t.util.createClass(t.Object,{type:"ellipse",rx:0,ry:0,initialize:function(e){e=e||{},this.callSuper("initialize",e),this.set("rx",e.rx||0),this.set("ry",e.ry||0),this.set("width",this.get("rx")*2),this.set("height",this.get("ry")*2)},toObject:function(e){return r(this.callSuper("toObject",e),{rx:this.get("rx"),ry:this.get("ry")})},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<ellipse ",'rx="',this.get("rx"),'" ry="',this.get("ry"),'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},render:function(e,t){if(this.rx===0||this.ry===0)return;return this.callSuper("render",e,t)},_render:function(e,t){e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,e.save(),e.transform(1,0,0,this.ry/this.rx,0,0),e.arc(t?this.left:0,t?this.top*this.rx/this.ry:0,this.rx,0,n,!1),e.restore(),this._renderFill(e),this._renderStroke(e)},complexity:function(){return 1}}),t.Ellipse.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("cx cy rx ry".split(" ")),t.Ellipse.fromElement=function(e,n){n||(n={});var i=t.parseAttributes(e,t.Ellipse.ATTRIBUTE_NAMES);"left"in i||(i.left=0),"top"in i||(i.top=0),"transformMatrix"in i||(i.left-=n.width?n.width/2:0,i.top-=n.height?n.height/2:0);var s=new t.Ellipse(r(i,n));return s.cx=parseFloat(e.getAttribute("cx"))||0,s.cy=parseFloat(e.getAttribute("cy"))||0,s},t.Ellipse.fromObject=function(e){return new t.Ellipse(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function i(e){return e.left=e.left||0,e.top=e.top||0,e}var t=e.fabric||(e.fabric={}),n=t.util.object.extend;if(t.Rect){console.warn("fabric.Rect is already defined");return}var r=t.Object.prototype.stateProperties.concat();r.push("rx","ry","x","y"),t.Rect=t.util.createClass(t.Object,{stateProperties:r,type:"rect",rx:0,ry:0,x:0,y:0,strokeDashArray:null,initialize:function(e){e=e||{},this.callSuper("initialize",e),this._initRxRy(),this.x=e.x||0,this.y=e.y||0},_initRxRy:function(){this.rx&&!this.ry?this.ry=this.rx:this.ry&&!this.rx&&(this.rx=this.ry)},_render:function(e){if(this.width===1&&this.height===1){e.fillRect(0,0,1,1);return}var t=this.rx?Math.min(this.rx,this.width/2):0,n=this.ry?Math.min(this.ry,this.height/2):0,r=this.width,i=this.height,s=-r/2,o=-i/2,u=this.group&&this.group.type==="path-group",a=t!==0||n!==0,f=.4477152502;e.beginPath(),e.globalAlpha=u?e.globalAlpha*this.opacity:this.opacity,this.transformMatrix&&u&&e.translate(this.width/2+this.x,this.height/2+this.y),!this.transformMatrix&&u&&e.translate(-this.group.width/2+this.width/2+this.x,-this.group.height/2+this.height/2+this.y),e.moveTo(s+t,o),e.lineTo(s+r-t,o),a&&e.bezierCurveTo(s+r-f*t,o,s+r,o+f*n,s+r,o+n),e.lineTo(s+r,o+i-n),a&&e.bezierCurveTo(s+r,o+i-f*n,s+r-f*t,o+i,s+r-t,o+i),e.lineTo(s+t,o+i),a&&e.bezierCurveTo(s+f*t,o+i,s,o+i-f*n,s,o+i-n),e.lineTo(s,o+n),a&&e.bezierCurveTo(s,o+f*n,s+f*t,o,s+t,o),e.closePath(),this._renderFill(e),this._renderStroke(e)},_renderDashedStroke:function(e){var n=-this.width/2,r=-this.height/2,i=this.width,s=this.height;e.beginPath(),t.util.drawDashedLine(e,n,r,n+i,r,this.strokeDashArray),t.util.drawDashedLine(e,n+i,r,n+i,r+s,this.strokeDashArray),t.util.drawDashedLine(e,n+i,r+s,n,r+s,this.strokeDashArray),t.util.drawDashedLine(e,n,r+s,n,r,this.strokeDashArray),e.closePath()},_normalizeLeftTopProperties:function(e){return"left"in e&&this.set("left",e.left+this.getWidth()/2),this.set("x",e.left||0),"top"in e&&this.set("top",e.top+this.getHeight()/2),this.set("y",e.top||0),this},toObject:function(e){var t=n(this.callSuper("toObject",e),{rx:this.get("rx")||0,ry:this.get("ry")||0,x:this.get("x"),y:this.get("y")});return this.includeDefaultValues||this._removeDefaultValues(t),t},toSVG:function(e){var t=this._createBaseSVGMarkup();return t.push("<rect ",'x="',-1*this.width/2,'" y="',-1*this.height/2,'" rx="',this.get("rx"),'" ry="',this.get("ry"),'" width="',this.width,'" height="',this.height,'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(t.join("")):t.join("")},complexity:function(){return 1}}),t.Rect.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("x y rx ry width height".split(" ")),t.Rect.fromElement=function(e,r){if(!e)return null;var s=t.parseAttributes(e,t.Rect.ATTRIBUTE_NAMES);s=i(s);var o=new t.Rect(n(r?t.util.object.clone(r):{},s));return o._normalizeLeftTopProperties(s),o},t.Rect.fromObject=function(e){return new t.Rect(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.toFixed;if(t.Polyline){t.warn("fabric.Polyline is already defined");return}t.Polyline=t.util.createClass(t.Object,{type:"polyline",points:null,initialize:function(e,t,n){t=t||{},this.set("points",e),this.callSuper("initialize",t),this._calcDimensions(n)},_calcDimensions:function(e){return t.Polygon.prototype._calcDimensions.call(this,e)},toObject:function(e){return t.Polygon.prototype.toObject.call(this,e)},toSVG:function(e){var t=[],r=this._createBaseSVGMarkup();for(var i=0,s=this.points.length;i<s;i++)t.push(n(this.points[i].x,2),",",n(this.points[i].y,2)," ");return r.push("<polyline ",'points="',t.join(""),'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(r.join("")):r.join("")},_render:function(e){var t;e.beginPath(),e.moveTo(this.points[0].x,this.points[0].y);for(var n=0,r=this.points.length;n<r;n++)t=this.points[n],e.lineTo(t.x,t.y);this._renderFill(e),this._renderStroke(e)},_renderDashedStroke:function(e){var n,r;e.beginPath();for(var i=0,s=this.points.length;i<s;i++)n=this.points[i],r=this.points[i+1]||n,t.util.drawDashedLine(e,n.x,n.y,r.x,r.y,this.strokeDashArray)},complexity:function(){return this.get("points").length}}),t.Polyline.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat(),t.Polyline.fromElement=function(e,n){if(!e)return null;n||(n={});var r=t.parsePointsAttribute(e.getAttribute("points")),i=t.parseAttributes(e,t.Polyline.ATTRIBUTE_NAMES);return t.util.normalizePoints(r,n),new t.Polyline(r,t.util.object.extend(i,n),!0)},t.Polyline.fromObject=function(e){var n=e.points;return new t.Polyline(n,e,!0)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.array.min,i=t.util.array.max,s=t.util.toFixed;if(t.Polygon){t.warn("fabric.Polygon is already defined");return}t.Polygon=t.util.createClass(t.Object,{type:"polygon",points:null,initialize:function(e,t,n){t=t||{},this.points=e,this.callSuper("initialize",t),this._calcDimensions(n)},_calcDimensions:function(e){var t=this.points,n=r(t,"x"),s=r(t,"y"),o=i(t,"x"),u=i(t,"y");this.width=o-n||1,this.height=u-s||1,this.minX=n,this.minY=s;if(e)return;var a=this.width/2+this.minX,f=this.height/2+this.minY;this.points.forEach(function(e){e.x-=a,e.y-=f},this)},toObject:function(e){return n(this.callSuper("toObject",e),{points:this.points.concat()})},toSVG:function(e){var t=[],n=this._createBaseSVGMarkup();for(var r=0,i=this.points.length;r<i;r++)t.push(s(this.points[r].x,2),",",s(this.points[r].y,2)," ");return n.push("<polygon ",'points="',t.join(""),'" style="',this.getSvgStyles(),'" transform="',this.getSvgTransform(),'"/>'),e?e(n.join("")):n.join("")},_render:function(e){var t;e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,e.moveTo(this.points[0].x,this.points[0].y);for(var n=0,r=this.points.length;n<r;n++)t=this.points[n],e.lineTo(t.x,t.y);this._renderFill(e);if(this.stroke||this.strokeDashArray)e.closePath(),this._renderStroke(e)},_renderDashedStroke:function(e){var n,r;e.beginPath();for(var i=0,s=this.points.length;i<s;i++)n=this.points[i],r=this.points[i+1]||this.points[0],t.util.drawDashedLine(e,n.x,n.y,r.x,r.y,this.strokeDashArray);e.closePath()},complexity:function(){return this.points.length}}),t.Polygon.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat(),t.Polygon.fromElement=function(e,r){if(!e)return null;r||(r={});var i=t.parsePointsAttribute(e.getAttribute("points")),s=t.parseAttributes(e,t.Polygon.ATTRIBUTE_NAMES);return t.util.normalizePoints(i,r),new t.Polygon(i,n(s,r),!0)},t.Polygon.fromObject=function(e){return new t.Polygon(e.points,e,!0)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";function f(e){return e[0]==="H"?e[1]:e[e.length-2]}function l(e){return e[0]==="V"?e[1]:e[e.length-1]}var t=e.fabric||(e.fabric={}),n=t.util.array.min,r=t.util.array.max,i=t.util.object.extend,s=Object.prototype.toString,o=t.util.drawArc,u={m:2,l:2,h:1,v:1,c:6,s:4,q:4,t:2,a:7},a={m:"l",M:"L"};if(t.Path){t.warn("fabric.Path is already defined");return}t.Path=t.util.createClass(t.Object,{type:"path",path:null,initialize:function(e,t){t=t||{},this.setOptions(t);if(!e)throw new Error("`path` argument is required");var n=s.call(e)==="[object Array]";this.path=n?e:e.match&&e.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi);if(!this.path)return;n||(this.path=this._parsePath()),this._initializePath(t),t.sourcePath&&this.setSourcePath(t.sourcePath)},_initializePath:function(e){var t="width"in e&&e.width!=null,n="height"in e&&e.width!=null,r="left"in e,s="top"in e,o=r?this.left:0,u=s?this.top:0;!t||!n?(i(this,this._parseDimensions()),t&&(this.width=e.width),n&&(this.height=e.height)):(s||(this.top=this.height/2),r||(this.left=this.width/2)),this.pathOffset=this.pathOffset||this._calculatePathOffset(o,u)},_calculatePathOffset:function(e,t){return{x:this.left-e-this.width/2,y:this.top-t-this.height/2}},_render:function(e){var t,n=null,r=0,i=0,s=0,u=0,a=0,f=0,l,c,h,p,d=-(this.width/2+this.pathOffset.x),v=-(this.height/2+this.pathOffset.y);for(var m=0,g=this.path.length;m<g;++m){t=this.path[m];switch(t[0]){case"l":s+=t[1],u+=t[2],e.lineTo(s+d,u+v);break;case"L":s=t[1],u=t[2],e.lineTo(s+d,u+v);break;case"h":s+=t[1],e.lineTo(s+d,u+v);break;case"H":s=t[1],e.lineTo(s+d,u+v);break;case"v":u+=t[1],e.lineTo(s+d,u+v);break;case"V":u=t[1],e.lineTo(s+d,u+v);break;case"m":s+=t[1],u+=t[2],r=s,i=u,e.moveTo(s+d,u+v);break;case"M":s=t[1],u=t[2],r=s,i=u,e.moveTo(s+d,u+v);break;case"c":l=s+t[5],c=u+t[6],a=s+t[3],f=u+t[4],e.bezierCurveTo(s+t[1]+d,u+t[2]+v,a+d,f+v,l+d,c+v),s=l,u=c;break;case"C":s=t[5],u=t[6],a=t[3],f=t[4],e.bezierCurveTo(t[1]+d,t[2]+v,a+d,f+v,s+d,u+v);break;case"s":l=s+t[3],c=u+t[4],a=a?2*s-a:s,f=f?2*u-f:u,e.bezierCurveTo(a+d,f+v,s+t[1]+d,u+t[2]+v,l+d,c+v),a=s+t[1],f=u+t[2],s=l,u=c;break;case"S":l=t[3],c=t[4],a=2*s-a,f=2*u-f,e.bezierCurveTo(a+d,f+v,t[1]+d,t[2]+v,l+d,c+v),s=l,u=c,a=t[1],f=t[2];break;case"q":l=s+t[3],c=u+t[4],a=s+t[1],f=u+t[2],e.quadraticCurveTo(a+d,f+v,l+d,c+v),s=l,u=c;break;case"Q":l=t[3],c=t[4],e.quadraticCurveTo(t[1]+d,t[2]+v,l+d,c+v),s=l,u=c,a=t[1],f=t[2];break;case"t":l=s+t[1],c=u+t[2],n[0].match(/[QqTt]/)===null?(a=s,f=u):n[0]==="t"?(a=2*s-h,f=2*u-p):n[0]==="q"&&(a=2*s-a,f=2*u-f),h=a,p=f,e.quadraticCurveTo(a+d,f+v,l+d,c+v),s=l,u=c,a=s+t[1],f=u+t[2];break;case"T":l=t[1],c=t[2],a=2*s-a,f=2*u-f,e.quadraticCurveTo(a+d,f+v,l+d,c+v),s=l,u=c;break;case"a":o(e,s+d,u+v,[t[1],t[2],t[3],t[4],t[5],t[6]+s+d,t[7]+u+v]),s+=t[6],u+=t[7];break;case"A":o(e,s+d,u+v,[t[1],t[2],t[3],t[4],t[5],t[6]+d,t[7]+v]),s=t[6],u=t[7];break;case"z":case"Z":s=r,u=i,e.closePath()}n=t}},render:function(e,n){if(!this.visible)return;e.save();var r=this.transformMatrix;r&&e.transform(r[0],r[1],r[2],r[3],r[4],r[5]),n||this.transform(e),this._setStrokeStyles(e),this._setFillStyles(e),this._setShadow(e),this.clipTo&&t.util.clipContext(this,e),e.beginPath(),e.globalAlpha=this.group?e.globalAlpha*this.opacity:this.opacity,this._render(e),this._renderFill(e),this._renderStroke(e),this.clipTo&&e.restore(),this._removeShadow(e),e.restore()},toString:function(){return"#<fabric.Path ("+this.complexity()+'): { "top": '+this.top+', "left": '+this.left+" }>"},toObject:function(e){var t=i(this.callSuper("toObject",e),{path:this.path.map(function(e){return e.slice()}),pathOffset:this.pathOffset});return this.sourcePath&&(t.sourcePath=this.sourcePath),this.transformMatrix&&(t.transformMatrix=this.transformMatrix),t},toDatalessObject:function(e){var t=this.toObject(e);return this.sourcePath&&(t.path=this.sourcePath),delete t.sourcePath,t},toSVG:function(e){var t=[],n=this._createBaseSVGMarkup();for(var r=0,i=this.path.length;r<i;r++)t.push(this.path[r].join(" "));var s=t.join(" ");return n.push('<g transform="',this.group?"":this.getSvgTransform(),'">',"<path ",'d="',s,'" style="',this.getSvgStyles(),'" transform="translate(',-this.width/2," ",-this.height/2,")",'" stroke-linecap="round" ',"/>","</g>"),e?e(n.join("")):n.join("")},complexity:function(){return this.path.length},_parsePath:function(){var e=[],t=[],n,r,i=/([-+]?((\d+\.\d+)|((\d+)|(\.\d+)))(?:e[-+]?\d+)?)/ig,s,o;for(var f=0,l,c=this.path.length;f<c;f++){n=this.path[f],o=n.slice(1).trim(),t.length=0;while(s=i.exec(o))t.push(s[0]);l=[n.charAt(0)];for(var h=0,p=t.length;h<p;h++)r=parseFloat(t[h]),isNaN(r)||l.push(r);var d=l[0],v=u[d.toLowerCase()],m=a[d]||d;if(l.length-1>v)for(var g=1,y=l.length;g<y;g+=v)e.push([d].concat(l.slice(g,g+v))),d=m;else e.push(l)}return e},_parseDimensions:function(){var e=[],t=[],i={};this.path.forEach(function(n,r){this._getCoordsFromCommand(n,r,e,t,i)},this);var s=n(e),o=n(t),u=r(e),a=r(t),f=u-s,l=a-o,c={left:this.left+(s+f/2),top:this.top+(o+l/2),width:f,height:l};return c},_getCoordsFromCommand:function(e,t,n,r,i){var s=!1;e[0]!=="H"&&(i.x=t===0?f(e):f(this.path[t-1])),e[0]!=="V"&&(i.y=t===0?l(e):l(this.path[t-1])),e[0]===e[0].toLowerCase()&&(s=!0);var o=this._getXY(e,s,i),u;u=parseInt(o.x,10),isNaN(u)||n.push(u),u=parseInt(o.y,10),isNaN(u)||r.push(u)},_getXY:function(e,t,n){var r=t?n.x+f(e):e[0]==="V"?n.x:f(e),i=t?n.y+l(e):e[0]==="H"?n.y:l(e);return{x:r,y:i}}}),t.Path.fromObject=function(e,n){typeof e.path=="string"?t.loadSVGFromURL(e.path,function(r){var i=r[0],s=e.path;delete e.path,t.util.object.extend(i,e),i.setSourcePath(s),n(i)}):n(new t.Path(e.path,e))},t.Path.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat(["d"]),t.Path.fromElement=function(e,n,r){var s=t.parseAttributes(e,t.Path.ATTRIBUTE_NAMES);n&&n(new t.Path(s.d,i(s,r)))},t.Path.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.array.invoke,i=t.Object.prototype.toObject;if(t.PathGroup){t.warn("fabric.PathGroup is already defined");return}t.PathGroup=t.util.createClass(t.Path,{type:"path-group",fill:"",initialize:function(e,t){t=t||{},this.paths=e||[];for(var n=this.paths.length;n--;)this.paths[n].group=this;this.setOptions(t),t.widthAttr&&(this.scaleX=t.widthAttr/t.width),t.heightAttr&&(this.scaleY=t.heightAttr/t.height),this.setCoords(),t.sourcePath&&this.setSourcePath(t.sourcePath)},render:function(e){if(!this.visible)return;e.save();var n=this.transformMatrix;n&&e.transform(n[0],n[1],n[2],n[3],n[4],n[5]),this.transform(e),this._setShadow(e),this.clipTo&&t.util.clipContext(this,e);for(var r=0,i=this.paths.length;r<i;++r)this.paths[r].render(e,!0);this.clipTo&&e.restore(),this._removeShadow(e),e.restore()},_set:function(e,t){if(e==="fill"&&t&&this.isSameColor()){var n=this.paths.length;while(n--)this.paths[n]._set(e,t)}return this.callSuper("_set",e,t)},toObject:function(e){var t=n(i.call(this,e),{paths:r(this.getObjects(),"toObject",e)});return this.sourcePath&&(t.sourcePath=this.sourcePath),t},toDatalessObject:function(e){var t=this.toObject(e);return this.sourcePath&&(t.paths=this.sourcePath),t},toSVG:function(e){var t=this.getObjects(),n=["<g ",'style="',this.getSvgStyles(),'" ','transform="',this.getSvgTransform(),'" ',">"];for(var r=0,i=t.length;r<i;r++)n.push(t[r].toSVG(e));return n.push("</g>"),e?e(n.join("")):n.join("")},toString:function(){return"#<fabric.PathGroup ("+this.complexity()+"): { top: "+this.top+", left: "+this.left+" }>"},isSameColor:function(){var e=(this.getObjects()[0].get("fill")||"").toLowerCase();return this.getObjects().every(function(t){return(t.get("fill")||"").toLowerCase()===e})},complexity:function(){return this.paths.reduce(function(e,t){return e+(t&&t.complexity?t.complexity():0)},0)},getObjects:function(){return this.paths}}),t.PathGroup.fromObject=function(e,n){typeof e.paths=="string"?t.loadSVGFromURL(e.paths,function(r){var i=e.paths;delete e.paths;var s=t.util.groupSVGElements(r,e,i);n(s)}):t.util.enlivenObjects(e.paths,function(r){delete e.paths,n(new t.PathGroup(r,e))})},t.PathGroup.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.array.min,i=t.util.array.max,s=t.util.array.invoke;if(t.Group)return;var o={lockMovementX:!0,lockMovementY:!0,lockRotation:!0,lockScalingX:!0,lockScalingY:!0,lockUniScaling:!0};t.Group=t.util.createClass(t.Object,t.Collection,{type:"group",initialize:function(e,t){t=t||{},this._objects=e||[];for(var r=this._objects.length;r--;)this._objects[r].group=this;this.originalState={},this.callSuper("initialize"),this._calcBounds(),this._updateObjectsCoords(),t&&n(this,t),this._setOpacityIfSame(),this.setCoords(),this.saveCoords()},_updateObjectsCoords:function(){this.forEachObject(this._updateObjectCoords,this)},_updateObjectCoords:function(e){var t=e.getLeft(),n=e.getTop();e.set({originalLeft:t,originalTop:n,left:t-this.left,top:n-this.top}),e.setCoords(),e.__origHasControls=e.hasControls,e.hasControls=!1},toString:function(){return"#<fabric.Group: ("+this.complexity()+")>"},addWithUpdate:function(e){return this._restoreObjectsState(),e&&(this._objects.push(e),e.group=this),this.forEachObject(this._setObjectActive,this),this._calcBounds(),this._updateObjectsCoords(),this},_setObjectActive:function(e){e.set("active",!0),e.group=this},removeWithUpdate:function(e){return this._moveFlippedObject(e),this._restoreObjectsState(),this.forEachObject(this._setObjectActive,this),this.remove(e),this._calcBounds(),this._updateObjectsCoords(),this},_onObjectAdded:function(e){e.group=this},_onObjectRemoved:function(e){delete e.group,e.set("active",!1)},delegatedProperties:{fill:!0,opacity:!0,fontFamily:!0,fontWeight:!0,fontSize:!0,fontStyle:!0,lineHeight:!0,textDecoration:!0,textAlign:!0,backgroundColor:!0},_set:function(e,t){if(e in this.delegatedProperties){var n=this._objects.length;this[e]=t;while(n--)this._objects[n].set(e,t)}else this[e]=t},toObject:function(e){return n(this.callSuper("toObject",e),{objects:s(this._objects,"toObject",e)})},render:function(e){if(!this.visible)return;e.save(),this.clipTo&&t.util.clipContext(this,e);for(var n=0,r=this._objects.length;n<r;n++)this._renderObject(this._objects[n],e);this.clipTo&&e.restore(),e.restore()},_renderControls:function(e,t){this.callSuper("_renderControls",e,t);for(var n=0,r=this._objects.length;n<r;n++)this._objects[n]._renderControls(e)},_renderObject:function(e,t){var n=e.hasRotatingPoint;if(!e.visible)return;e.hasRotatingPoint=!1,e.render(t),e.hasRotatingPoint=n},_restoreObjectsState:function(){return this._objects.forEach(this._restoreObjectState,this),this},_moveFlippedObject:function(e){var t=e.get("originX"),n=e.get("originY"),r=e.getCenterPoint();e.set({originX:"center",originY:"center",left:r.x,top:r.y}),this._toggleFlipping(e);var i=e.getPointByOrigin(t,n);return e.set({originX:t,originY:n,left:i.x,top:i.y}),this},_toggleFlipping:function(e){this.flipX&&(e.toggle("flipX"),e.set("left",-e.get("left")),e.setAngle(-e.getAngle())),this.flipY&&(e.toggle("flipY"),e.set("top",-e.get("top")),e.setAngle(-e.getAngle()))},_restoreObjectState:function(e){return this._setObjectPosition(e),e.setCoords(),e.hasControls=e.__origHasControls,delete e.__origHasControls,e.set("active",!1),e.setCoords(),delete e.group,this},_setObjectPosition:function(e){var t=this.getLeft(),n=this.getTop(),r=this._getRotatedLeftTop(e);e.set({angle:e.getAngle()+this.getAngle(),left:t+r.left,top:n+r.top,scaleX:e.get("scaleX")*this.get("scaleX"),scaleY:e.get("scaleY")*this.get("scaleY")})},_getRotatedLeftTop:function(e){var t=this.getAngle()*(Math.PI/180);return{left:-Math.sin(t)*e.getTop()*this.get("scaleY")+Math.cos(t)*e.getLeft()*this.get("scaleX"),top:Math.cos(t)*e.getTop()*this.get("scaleY")+Math.sin(t)*e.getLeft()*this.get("scaleX")}},destroy:function(){return this._objects.forEach(this._moveFlippedObject,this),this._restoreObjectsState()},saveCoords:function(){return this._originalLeft=this.get("left"),this._originalTop=this.get("top"),this},hasMoved:function(){return this._originalLeft!==this.get("left")||this._originalTop!==this.get("top")},setObjectsCoords:function(){return this.forEachObject(function(e){e.setCoords()}),this},_setOpacityIfSame:function(){var e=this.getObjects(),t=e[0]?e[0].get("opacity"):1,n=e.every(function(e){return e.get("opacity")===t});n&&(this.opacity=t)},_calcBounds:function(e){var t=[],n=[],r;for(var i=0,s=this._objects.length;i<s;++i){r=this._objects[i],r.setCoords();for(var o in r.oCoords)t.push(r.oCoords[o].x),n.push(r.oCoords[o].y)}this.set(this._getBounds(t,n,e))},_getBounds:function(e,n,s){var o=t.util.invertTransform(this.getViewportTransform()),u=t.util.transformPoint(new t.Point(r(e),r(n)),o),a=t.util.transformPoint(new t.Point(i(e),i(n)),o),f={width:a.x-u.x||0,height:a.y-u.y||0};return s||(f.left=(u.x+a.x)/2||0,f.top=(u.y+a.y)/2||0),f},toSVG:function(e){var t=["<g ",'transform="',this.getSvgTransform(),'">'];for(var n=0,r=this._objects.length;n<r;n++)t.push(this._objects[n].toSVG(e));return t.push("</g>"),e?e(t.join("")):t.join("")},get:function(e){if(e in o){if(this[e])return this[e];for(var t=0,n=this._objects.length;t<n;t++)if(this._objects[t][e])return!0;return!1}return e in this.delegatedProperties?this._objects[0]&&this._objects[0].get(e):this[e]}}),t.Group.fromObject=function(e,n){t.util.enlivenObjects(e.objects,function(r){delete e.objects,n&&n(new t.Group(r,e))})},t.Group.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=fabric.util.object.extend;e.fabric||(e.fabric={});if(e.fabric.Image){fabric.warn("fabric.Image is already defined.");return}fabric.Image=fabric.util.createClass(fabric.Object,{type:"image",crossOrigin:"",initialize:function(e,t){t||(t={}),this.filters=[],this.callSuper("initialize",t),this._initElement(e,t),this._initConfig(t),t.filters&&(this.filters=t.filters,this.applyFilters())},getElement:function(){return this._element},setElement:function(e,t){return this._element=e,this._originalElement=e,this._initConfig(),this.filters.length!==0&&this.applyFilters(t),this},setCrossOrigin:function(e){return this.crossOrigin=e,this._element.crossOrigin=e,this},getOriginalSize:function(){var e=this.getElement();return{width:e.width,height:e.height}},render:function(e,t){if(!this.visible)return;e.save();var n=this.transformMatrix,r=this.group&&this.group.type==="path-group";r&&e.translate(-this.group.width/2,-this.group.height/2),n&&e.transform(n[0],n[1],n[2],n[3],n[4],n[5]),t||this.transform(e),r&&e.translate(this.width/2,this.height/2),this._setShadow(e),this.clipTo&&fabric.util.clipContext(this,e),this._render(e),this.shadow&&!this.shadow.affectStroke&&this._removeShadow(e),this._renderStroke(e),this.clipTo&&e.restore(),e.restore()},_stroke:function(e){e.save(),this._setStrokeStyles(e),e.beginPath(),e.strokeRect(-this.width/2,-this.height/2,this.width,this.height),e.closePath(),e.restore()},_renderDashedStroke:function(e){var t=-this.width/2,n=-this.height/2,r=this.width,i=this.height;e.save(),this._setStrokeStyles(e),e.beginPath(),fabric.util.drawDashedLine(e,t,n,t+r,n,this.strokeDashArray),fabric.util.drawDashedLine(e,t+r,n,t+r,n+i,this.strokeDashArray),fabric.util.drawDashedLine(e,t+r,n+i,t,n+i,this.strokeDashArray),fabric.util.drawDashedLine(e,t,n+i,t,n,this.strokeDashArray),e.closePath(),e.restore()},toObject:function(e){return t(this.callSuper("toObject",e),{src:this._originalElement.src||this._originalElement._src,filters:this.filters.map(function(e){return e&&e.toObject()}),crossOrigin:this.crossOrigin})},toSVG:function(e){var t=[];t.push('<g transform="',this.getSvgTransform(),'">','<image xlink:href="',this.getSvgSrc(),'" style="',this.getSvgStyles(),'" transform="translate('+ -this.width/2+" "+ -this.height/2+")",'" width="',this.width,'" height="',this.height,'" preserveAspectRatio="none"',"></image>");if(this.stroke||this.strokeDashArray){var n=this.fill;this.fill=null,t.push("<rect ",'x="',-1*this.width/2,'" y="',-1*this.height/2,'" width="',this.width,'" height="',this.height,'" style="',this.getSvgStyles(),'"/>'),this.fill=n}return t.push("</g>"),e?e(t.join("")):t.join("")},getSrc:function(){if(this.getElement())return this.getElement().src||this.getElement()._src},toString:function(){return'#<fabric.Image: { src: "'+this.getSrc()+'" }>'},clone:function(e,t){this.constructor.fromObject(this.toObject(t),e)},applyFilters:function(e){if(!this._originalElement)return;if(this.filters.length===0){this._element=this._originalElement,e&&e();return}var t=this._originalElement,n=fabric.util.createCanvasElement(),r=fabric.util.createImage(),i=this;return n.width=t.width,n.height=t.height,n.getContext("2d").drawImage(t,0,0,t.width,t.height),this.filters.forEach(function(e){e&&e.applyTo(n)}),r.width=t.width,r.height=t.height,fabric.isLikelyNode?(r.src=n.toBuffer(undefined,fabric.Image.pngCompression),i._element=r,e&&e()):(r.onload=function(){i._element=r,e&&e(),r.onload=n=t=null},r.src=n.toDataURL("image/png")),this},_render:function(e){this._element&&e.drawImage(this._element,-this.width/2,-this.height/2,this.width,this.height)},_resetWidthHeight:function(){var e=this.getElement();this.set("width",e.width),this.set("height",e.height)},_initElement:function(e){this.setElement(fabric.util.getById(e)),fabric.util.addClass(this.getElement(),fabric.Image.CSS_CANVAS)},_initConfig:function(e){e||(e={}),this.setOptions(e),this._setWidthHeight(e),this._element&&this.crossOrigin&&(this._element.crossOrigin=this.crossOrigin)},_initFilters:function(e,t){e.filters&&e.filters.length?fabric.util.enlivenObjects(e.filters,function(e){t&&t(e)},"fabric.Image.filters"):t&&t()},_setWidthHeight:function(e){this.width="width"in e?e.width:this.getElement()?this.getElement().width||0:0,this.height="height"in e?e.height:this.getElement()?this.getElement().height||0:0},complexity:function(){return 1}}),fabric.Image.CSS_CANVAS="canvas-img",fabric.Image.prototype.getSvgSrc=fabric.Image.prototype.getSrc,fabric.Image.fromObject=function(e,t){fabric.util.loadImage(e.src,function(n){fabric.Image.prototype._initFilters.call(e,e,function(r){e.filters=r||[];var i=new fabric.Image(n,e);t&&t(i)})},null,e.crossOrigin)},fabric.Image.fromURL=function(e,t,n){fabric.util.loadImage(e,function(e){t(new fabric.Image(e,n))},null,n&&n.crossOrigin)},fabric.Image.ATTRIBUTE_NAMES=fabric.SHARED_ATTRIBUTES.concat("x y width height xlink:href".split(" ")),fabric.Image.fromElement=function(e,n,r){var i=fabric.parseAttributes(e,fabric.Image.ATTRIBUTE_NAMES);fabric.Image.fromURL(i["xlink:href"],n,t(r?fabric.util.object.clone(r):{},i))},fabric.Image.async=!0,fabric.Image.pngCompression=1}(typeof exports!="undefined"?exports:this),fabric.util.object.extend(fabric.Object.prototype,{_getAngleValueForStraighten:function(){var e=this.getAngle()%360;return e>0?Math.round((e-1)/90)*90:Math.round(e/90)*90},straighten:function(){return this.setAngle(this._getAngleValueForStraighten()),this},fxStraighten:function(e){e=e||{};var t=function(){},n=e.onComplete||t,r=e.onChange||t,i=this;return fabric.util.animate({startValue:this.get("angle"),endValue:this._getAngleValueForStraighten(),duration:this.FX_DURATION,onChange:function(e){i.setAngle(e),r()},onComplete:function(){i.setCoords(),n()},onStart:function(){i.set("active",!1)}}),this}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{straightenObject:function(e){return e.straighten(),this.renderAll(),this},fxStraightenObject:function(e){return e.fxStraighten({onChange:this.renderAll.bind(this)}),this}}),fabric.Image.filters=fabric.Image.filters||{},fabric.Image.filters.BaseFilter=fabric.util.createClass({type:"BaseFilter",toObject:function(){return{type:this.type}},toJSON:function(){return this.toObject()}}),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Brightness=t.util.createClass(t.Image.filters.BaseFilter,{type:"Brightness",initialize:function(e){e=e||{},this.brightness=e.brightness||0},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.brightness;for(var s=0,o=r.length;s<o;s+=4)r[s]+=i,r[s+1]+=i,r[s+2]+=i;t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{brightness:this.brightness})}}),t.Image.filters.Brightness.fromObject=function(e){return new t.Image.filters.Brightness(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Convolute=t.util.createClass(t.Image.filters.BaseFilter,{type:"Convolute",initialize:function(e){e=e||{},this.opaque=e.opaque,this.matrix=e.matrix||[0,0,0,0,1,0,0,0,0];var n=t.util.createCanvasElement();this.tmpCtx=n.getContext("2d")},_createImageData:function(e,t){return this.tmpCtx.createImageData(e,t)},applyTo:function(e){var t=this.matrix,n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=Math.round(Math.sqrt(t.length)),s=Math.floor(i/2),o=r.data,u=r.width,a=r.height,f=u,l=a,c=this._createImageData(f,l),h=c.data,p=this.opaque?1:0;for(var d=0;d<l;d++)for(var v=0;v<f;v++){var m=d,g=v,y=(d*f+v)*4,b=0,w=0,E=0,S=0;for(var x=0;x<i;x++)for(var T=0;T<i;T++){var N=m+x-s,C=g+T-s;if(N<0||N>a||C<0||C>u)continue;var k=(N*u+C)*4,L=t[x*i+T];b+=o[k]*L,w+=o[k+1]*L,E+=o[k+2]*L,S+=o[k+3]*L}h[y]=b,h[y+1]=w,h[y+2]=E,h[y+3]=S+p*(255-S)}n.putImageData(c,0,0)},toObject:function(){return n(this.callSuper("toObject"),{opaque:this.opaque,matrix:this.matrix})}}),t.Image.filters.Convolute.fromObject=function(e){return new t.Image.filters.Convolute(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.GradientTransparency=t.util.createClass(t.Image.filters.BaseFilter,{type:"GradientTransparency",initialize:function(e){e=e||{},this.threshold=e.threshold||100},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.threshold,s=r.length;for(var o=0,u=r.length;o<u;o+=4)r[o+3]=i+255*(s-o)/s;t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{threshold:this.threshold})}}),t.Image.filters.GradientTransparency.fromObject=function(e){return new t.Image.filters.GradientTransparency(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Grayscale=t.util.createClass(t.Image.filters.BaseFilter,{type:"Grayscale",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=n.width*n.height*4,s=0,o;while(s<i)o=(r[s]+r[s+1]+r[s+2])/3,r[s]=o,r[s+1]=o,r[s+2]=o,s+=4;t.putImageData(n,0,0)}}),t.Image.filters.Grayscale.fromObject=function(){return new t.Image.filters.Grayscale}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Invert=t.util.createClass(t.Image.filters.BaseFilter,{type:"Invert",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=r.length,s;for(s=0;s<i;s+=4)r[s]=255-r[s],r[s+1]=255-r[s+1],r[s+2]=255-r[s+2];t.putImageData(n,0,0)}}),t.Image.filters.Invert.fromObject=function(){return new t.Image.filters.Invert}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Mask=t.util.createClass(t.Image.filters.BaseFilter,{type:"Mask",initialize:function(e){e=e||{},this.mask=e.mask,this.channel=[0,1,2,3].indexOf(e.channel)>-1?e.channel:0},applyTo:function(e){if(!this.mask)return;var n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=r.data,s=this.mask.getElement(),o=t.util.createCanvasElement(),u=this.channel,a,f=r.width*r.height*4;o.width=s.width,o.height=s.height,o.getContext("2d").drawImage(s,0,0,s.width,s.height);var l=o.getContext("2d").getImageData(0,0,s.width,s.height),c=l.data;for(a=0;a<f;a+=4)i[a+3]=c[a+u];n.putImageData(r,0,0)},toObject:function(){return n(this.callSuper
+("toObject"),{mask:this.mask.toObject(),channel:this.channel})}}),t.Image.filters.Mask.fromObject=function(e,n){t.util.loadImage(e.mask.src,function(r){e.mask=new t.Image(r,e.mask),n&&n(new t.Image.filters.Mask(e))})},t.Image.filters.Mask.async=!0}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Noise=t.util.createClass(t.Image.filters.BaseFilter,{type:"Noise",initialize:function(e){e=e||{},this.noise=e.noise||0},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.noise,s;for(var o=0,u=r.length;o<u;o+=4)s=(.5-Math.random())*i,r[o]+=s,r[o+1]+=s,r[o+2]+=s;t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{noise:this.noise})}}),t.Image.filters.Noise.fromObject=function(e){return new t.Image.filters.Noise(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Pixelate=t.util.createClass(t.Image.filters.BaseFilter,{type:"Pixelate",initialize:function(e){e=e||{},this.blocksize=e.blocksize||4},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=n.height,s=n.width,o,u,a,f,l,c,h;for(u=0;u<i;u+=this.blocksize)for(a=0;a<s;a+=this.blocksize){o=u*4*s+a*4,f=r[o],l=r[o+1],c=r[o+2],h=r[o+3];for(var p=u,d=u+this.blocksize;p<d;p++)for(var v=a,m=a+this.blocksize;v<m;v++)o=p*4*s+v*4,r[o]=f,r[o+1]=l,r[o+2]=c,r[o+3]=h}t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{blocksize:this.blocksize})}}),t.Image.filters.Pixelate.fromObject=function(e){return new t.Image.filters.Pixelate(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.RemoveWhite=t.util.createClass(t.Image.filters.BaseFilter,{type:"RemoveWhite",initialize:function(e){e=e||{},this.threshold=e.threshold||30,this.distance=e.distance||20},applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=this.threshold,s=this.distance,o=255-i,u=Math.abs,a,f,l;for(var c=0,h=r.length;c<h;c+=4)a=r[c],f=r[c+1],l=r[c+2],a>o&&f>o&&l>o&&u(a-f)<s&&u(a-l)<s&&u(f-l)<s&&(r[c+3]=1);t.putImageData(n,0,0)},toObject:function(){return n(this.callSuper("toObject"),{threshold:this.threshold,distance:this.distance})}}),t.Image.filters.RemoveWhite.fromObject=function(e){return new t.Image.filters.RemoveWhite(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Sepia=t.util.createClass(t.Image.filters.BaseFilter,{type:"Sepia",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=r.length,s,o;for(s=0;s<i;s+=4)o=.3*r[s]+.59*r[s+1]+.11*r[s+2],r[s]=o+100,r[s+1]=o+50,r[s+2]=o+255;t.putImageData(n,0,0)}}),t.Image.filters.Sepia.fromObject=function(){return new t.Image.filters.Sepia}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={});t.Image.filters.Sepia2=t.util.createClass(t.Image.filters.BaseFilter,{type:"Sepia2",applyTo:function(e){var t=e.getContext("2d"),n=t.getImageData(0,0,e.width,e.height),r=n.data,i=r.length,s,o,u,a;for(s=0;s<i;s+=4)o=r[s],u=r[s+1],a=r[s+2],r[s]=(o*.393+u*.769+a*.189)/1.351,r[s+1]=(o*.349+u*.686+a*.168)/1.203,r[s+2]=(o*.272+u*.534+a*.131)/2.14;t.putImageData(n,0,0)}}),t.Image.filters.Sepia2.fromObject=function(){return new t.Image.filters.Sepia2}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Tint=t.util.createClass(t.Image.filters.BaseFilter,{type:"Tint",initialize:function(e){e=e||{},this.color=e.color||"#000000",this.opacity=typeof e.opacity!="undefined"?e.opacity:(new t.Color(this.color)).getAlpha()},applyTo:function(e){var n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=r.data,s=i.length,o,u,a,f,l,c,h,p,d;d=(new t.Color(this.color)).getSource(),u=d[0]*this.opacity,a=d[1]*this.opacity,f=d[2]*this.opacity,p=1-this.opacity;for(o=0;o<s;o+=4)l=i[o],c=i[o+1],h=i[o+2],i[o]=u+l*p,i[o+1]=a+c*p,i[o+2]=f+h*p;n.putImageData(r,0,0)},toObject:function(){return n(this.callSuper("toObject"),{color:this.color,opacity:this.opacity})}}),t.Image.filters.Tint.fromObject=function(e){return new t.Image.filters.Tint(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend;t.Image.filters.Multiply=t.util.createClass(t.Image.filters.BaseFilter,{type:"Multiply",initialize:function(e){e=e||{},this.color=e.color||"#000000"},applyTo:function(e){var n=e.getContext("2d"),r=n.getImageData(0,0,e.width,e.height),i=r.data,s=i.length,o,u;u=(new t.Color(this.color)).getSource();for(o=0;o<s;o+=4)i[o]*=u[0]/255,i[o+1]*=u[1]/255,i[o+2]*=u[2]/255;n.putImageData(r,0,0)},toObject:function(){return n(this.callSuper("toObject"),{color:this.color})}}),t.Image.filters.Multiply.fromObject=function(e){return new t.Image.filters.Multiply(e)}}(typeof exports!="undefined"?exports:this),function(e){"use strict";var t=e.fabric||(e.fabric={}),n=t.util.object.extend,r=t.util.object.clone,i=t.util.toFixed,s=t.StaticCanvas.supports("setLineDash");if(t.Text){t.warn("fabric.Text is already defined");return}var o=t.Object.prototype.stateProperties.concat();o.push("fontFamily","fontWeight","fontSize","text","textDecoration","textAlign","fontStyle","lineHeight","textBackgroundColor","useNative","path"),t.Text=t.util.createClass(t.Object,{_dimensionAffectingProps:{fontSize:!0,fontWeight:!0,fontFamily:!0,textDecoration:!0,fontStyle:!0,lineHeight:!0,stroke:!0,strokeWidth:!0,text:!0},_reNewline:/\r?\n/,type:"text",fontSize:40,fontWeight:"normal",fontFamily:"Times New Roman",textDecoration:"",textAlign:"left",fontStyle:"",lineHeight:1.3,textBackgroundColor:"",path:null,useNative:!0,stateProperties:o,stroke:null,shadow:null,initialize:function(e,t){t=t||{},this.text=e,this.__skipDimension=!0,this.setOptions(t),this.__skipDimension=!1,this._initDimensions()},_initDimensions:function(){if(this.__skipDimension)return;var e=t.util.createCanvasElement();this._render(e.getContext("2d"))},toString:function(){return"#<fabric.Text ("+this.complexity()+'): { "text": "'+this.text+'", "fontFamily": "'+this.fontFamily+'" }>'},_render:function(e){var t=this.group&&this.group.type==="path-group";t&&!this.transformMatrix?e.translate(-this.group.width/2+this.left,-this.group.height/2+this.top):t&&this.transformMatrix&&e.translate(-this.group.width/2,-this.group.height/2),typeof Cufon=="undefined"||this.useNative===!0?this._renderViaNative(e):this._renderViaCufon(e)},_renderViaNative:function(e){var n=this.text.split(this._reNewline);this.transform(e,t.isLikelyNode),this._setTextStyles(e),this.width=this._getTextWidth(e,n),this.height=this._getTextHeight(e,n),this.clipTo&&t.util.clipContext(this,e),this._renderTextBackground(e,n),this._translateForTextAlign(e),this._renderText(e,n),this.textAlign!=="left"&&this.textAlign!=="justify"&&e.restore(),this._renderTextDecoration(e,n),this.clipTo&&e.restore(),this._setBoundaries(e,n),this._totalLineHeight=0},_renderText:function(e,t){e.save(),this._setShadow(e),this._renderTextFill(e,t),this._renderTextStroke(e,t),this._removeShadow(e),e.restore()},_translateForTextAlign:function(e){this.textAlign!=="left"&&this.textAlign!=="justify"&&(e.save(),e.translate(this.textAlign==="center"?this.width/2:this.width,0))},_setBoundaries:function(e,t){this._boundaries=[];for(var n=0,r=t.length;n<r;n++){var i=this._getLineWidth(e,t[n]),s=this._getLineLeftOffset(i);this._boundaries.push({height:this.fontSize*this.lineHeight,width:i,left:s})}},_setTextStyles:function(e){this._setFillStyles(e),this._setStrokeStyles(e),e.textBaseline="alphabetic",this.skipTextAlign||(e.textAlign=this.textAlign),e.font=this._getFontDeclaration()},_getTextHeight:function(e,t){return this.fontSize*t.length*this.lineHeight},_getTextWidth:function(e,t){var n=e.measureText(t[0]||"|").width;for(var r=1,i=t.length;r<i;r++){var s=e.measureText(t[r]).width;s>n&&(n=s)}return n},_renderChars:function(e,t,n,r,i){t[e](n,r,i)},_renderTextLine:function(e,t,n,r,i,s){i-=this.fontSize/4;if(this.textAlign!=="justify"){this._renderChars(e,t,n,r,i,s);return}var o=t.measureText(n).width,u=this.width;if(u>o){var a=n.split(/\s+/),f=t.measureText(n.replace(/\s+/g,"")).width,l=u-f,c=a.length-1,h=l/c,p=0;for(var d=0,v=a.length;d<v;d++)this._renderChars(e,t,a[d],r+p,i,s),p+=t.measureText(a[d]).width+h}else this._renderChars(e,t,n,r,i,s)},_getLeftOffset:function(){return t.isLikelyNode?0:-this.width/2},_getTopOffset:function(){return-this.height/2},_renderTextFill:function(e,t){if(!this.fill&&!this._skipFillStrokeCheck)return;this._boundaries=[];var n=0;for(var r=0,i=t.length;r<i;r++){var s=this._getHeightOfLine(e,r,t);n+=s,this._renderTextLine("fillText",e,t[r],this._getLeftOffset(),this._getTopOffset()+n,r)}},_renderTextStroke:function(e,t){if(!this.stroke&&!this._skipFillStrokeCheck)return;var n=0;e.save(),this.strokeDashArray&&(1&this.strokeDashArray.length&&this.strokeDashArray.push.apply(this.strokeDashArray,this.strokeDashArray),s&&e.setLineDash(this.strokeDashArray)),e.beginPath();for(var r=0,i=t.length;r<i;r++){var o=this._getHeightOfLine(e,r,t);n+=o,this._renderTextLine("strokeText",e,t[r],this._getLeftOffset(),this._getTopOffset()+n,r)}e.closePath(),e.restore()},_getHeightOfLine:function(){return this.fontSize*this.lineHeight},_renderTextBackground:function(e,t){this._renderTextBoxBackground(e),this._renderTextLinesBackground(e,t)},_renderTextBoxBackground:function(e){if(!this.backgroundColor)return;e.save(),e.fillStyle=this.backgroundColor,e.fillRect(this._getLeftOffset(),this._getTopOffset(),this.width,this.height),e.restore()},_renderTextLinesBackground:function(e,t){if(!this.textBackgroundColor)return;e.save(),e.fillStyle=this.textBackgroundColor;for(var n=0,r=t.length;n<r;n++)if(t[n]!==""){var i=this._getLineWidth(e,t[n]),s=this._getLineLeftOffset(i);e.fillRect(this._getLeftOffset()+s,this._getTopOffset()+n*this.fontSize*this.lineHeight,i,this.fontSize*this.lineHeight)}e.restore()},_getLineLeftOffset:function(e){return this.textAlign==="center"?(this.width-e)/2:this.textAlign==="right"?this.width-e:0},_getLineWidth:function(e,t){return this.textAlign==="justify"?this.width:e.measureText(t).width},_renderTextDecoration:function(e,t){function i(i){for(var s=0,o=t.length;s<o;s++){var u=r._getLineWidth(e,t[s]),a=r._getLineLeftOffset(u);e.fillRect(r._getLeftOffset()+a,~~(i+s*r._getHeightOfLine(e,s,t)-n),u,1)}}if(!this.textDecoration)return;var n=this._getTextHeight(e,t)/2,r=this;this.textDecoration.indexOf("underline")>-1&&i(this.fontSize*this.lineHeight),this.textDecoration.indexOf("line-through")>-1&&i(this.fontSize*this.lineHeight-this.fontSize/2),this.textDecoration.indexOf("overline")>-1&&i(this.fontSize*this.lineHeight-this.fontSize)},_getFontDeclaration:function(){return[t.isLikelyNode?this.fontWeight:this.fontStyle,t.isLikelyNode?this.fontStyle:this.fontWeight,this.fontSize+"px",t.isLikelyNode?'"'+this.fontFamily+'"':this.fontFamily].join(" ")},render:function(e){if(!this.visible)return;e.save();var t=this.transformMatrix;t&&(!this.group||this.group.type==="path-group")&&e.transform(t[0],t[1],t[2],t[3],t[4],t[5]),this._render(e),e.restore()},toObject:function(e){var t=n(this.callSuper("toObject",e),{text:this.text,fontSize:this.fontSize,fontWeight:this.fontWeight,fontFamily:this.fontFamily,fontStyle:this.fontStyle,lineHeight:this.lineHeight,textDecoration:this.textDecoration,textAlign:this.textAlign,path:this.path,textBackgroundColor:this.textBackgroundColor,useNative:this.useNative});return this.includeDefaultValues||this._removeDefaultValues(t),t},toSVG:function(e){var t=[],n=this.text.split(this._reNewline),r=this._getSVGLeftTopOffsets(n),i=this._getSVGTextAndBg(r.lineTop,r.textLeft,n),s=this._getSVGShadows(r.lineTop,n);return r.textTop+=this._fontAscent?this._fontAscent/5*this.lineHeight:0,this._wrapSVGTextAndBg(t,i,s,r),e?e(t.join("")):t.join("")},_getSVGLeftTopOffsets:function(e){var t=this.useNative?this.fontSize*this.lineHeight:-this._fontAscent-this._fontAscent/5*this.lineHeight,n=-(this.width/2),r=this.useNative?this.fontSize-1:this.height/2-e.length*this.fontSize-this._totalLineHeight;return{textLeft:n,textTop:r,lineTop:t}},_wrapSVGTextAndBg:function(e,t,n,r){e.push('<g transform="',this.getSvgTransform(),'">',t.textBgRects.join(""),"<text ",this.fontFamily?'font-family="'+this.fontFamily.replace(/"/g,"'")+'" ':"",this.fontSize?'font-size="'+this.fontSize+'" ':"",this.fontStyle?'font-style="'+this.fontStyle+'" ':"",this.fontWeight?'font-weight="'+this.fontWeight+'" ':"",this.textDecoration?'text-decoration="'+this.textDecoration+'" ':"",'style="',this.getSvgStyles(),'" ','transform="translate(',i(r.textLeft,2)," ",i(r.textTop,2),')">',n.join(""),t.textSpans.join(""),"</text>","</g>")},_getSVGShadows:function(e,n){var r=[],s,o,u=1;if(!this.shadow||!this._boundaries)return r;for(s=0,o=n.length;s<o;s++)if(n[s]!==""){var a=this._boundaries&&this._boundaries[s]?this._boundaries[s].left:0;r.push('<tspan x="',i(a+u+this.shadow.offsetX,2),s===0||this.useNative?'" y':'" dy','="',i(this.useNative?e*s-this.height/2+this.shadow.offsetY:e+(s===0?this.shadow.offsetY:0),2),'" ',this._getFillAttributes(this.shadow.color),">",t.util.string.escapeXml(n[s]),"</tspan>"),u=1}else u++;return r},_getSVGTextAndBg:function(e,t,n){var r=[],i=[],s=1;this._setSVGBg(i);for(var o=0,u=n.length;o<u;o++){n[o]!==""?(this._setSVGTextLineText(n[o],o,r,e,s,i),s=1):s++;if(!this.textBackgroundColor||!this._boundaries)continue;this._setSVGTextLineBg(i,o,t,e)}return{textSpans:r,textBgRects:i}},_setSVGTextLineText:function(e,n,r,s,o){var u=this._boundaries&&this._boundaries[n]?i(this._boundaries[n].left,2):0;r.push('<tspan x="',u,'" ',n===0||this.useNative?"y":"dy",'="',i(this.useNative?s*n-this.height/2:s*o,2),'" ',this._getFillAttributes(this.fill),">",t.util.string.escapeXml(e),"</tspan>")},_setSVGTextLineBg:function(e,t,n,r){e.push("<rect ",this._getFillAttributes(this.textBackgroundColor),' x="',i(n+this._boundaries[t].left,2),'" y="',i(r*t-this.height/2,2),'" width="',i(this._boundaries[t].width,2),'" height="',i(this._boundaries[t].height,2),'"></rect>')},_setSVGBg:function(e){this.backgroundColor&&this._boundaries&&e.push("<rect ",this._getFillAttributes(this.backgroundColor),' x="',i(-this.width/2,2),'" y="',i(-this.height/2,2),'" width="',i(this.width,2),'" height="',i(this.height,2),'"></rect>')},_getFillAttributes:function(e){var n=e&&typeof e=="string"?new t.Color(e):"";return!n||!n.getSource()||n.getAlpha()===1?'fill="'+e+'"':'opacity="'+n.getAlpha()+'" fill="'+n.setAlpha(1).toRgb()+'"'},_set:function(e,t){e==="fontFamily"&&this.path&&(this.path=this.path.replace(/(.*?)([^\/]*)(\.font\.js)/,"$1"+t+"$3")),this.callSuper("_set",e,t),e in this._dimensionAffectingProps&&(this._initDimensions(),this.setCoords())},complexity:function(){return 1}}),t.Text.ATTRIBUTE_NAMES=t.SHARED_ATTRIBUTES.concat("x y dx dy font-family font-style font-weight font-size text-decoration text-anchor".split(" ")),t.Text.DEFAULT_SVG_FONT_SIZE=16,t.Text.fromElement=function(e,n){if(!e)return null;var r=t.parseAttributes(e,t.Text.ATTRIBUTE_NAMES);n=t.util.object.extend(n?t.util.object.clone(n):{},r),"dx"in r&&(n.left+=r.dx),"dy"in r&&(n.top+=r.dy),"fontSize"in n||(n.fontSize=t.Text.DEFAULT_SVG_FONT_SIZE),n.originX||(n.originX="center");var i=new t.Text(e.textContent,n);return i.set({left:i.getLeft()+i.getWidth()/2,top:i.getTop()-i.getHeight()/2}),i},t.Text.fromObject=function(e){return new t.Text(e.text,r(e))},t.util.createAccessors(t.Text)}(typeof exports!="undefined"?exports:this),function(){var e=fabric.util.object.clone;fabric.IText=fabric.util.createClass(fabric.Text,fabric.Observable,{type:"i-text",selectionStart:0,selectionEnd:0,selectionColor:"rgba(17,119,255,0.3)",isEditing:!1,editable:!0,editingBorderColor:"rgba(102,153,255,0.25)",cursorWidth:2,cursorColor:"#333",cursorDelay:1e3,cursorDuration:600,styles:null,caching:!0,_skipFillStrokeCheck:!0,_reSpace:/\s|\n/,_fontSizeFraction:4,_currentCursorOpacity:0,_selectionDirection:null,_abortCursorAnimation:!1,_charWidthsCache:{},initialize:function(e,t){this.styles=t?t.styles||{}:{},this.callSuper("initialize",e,t),this.initBehavior(),fabric.IText.instances.push(this),this.__lineWidths={},this.__lineHeights={},this.__lineOffsets={}},isEmptyStyles:function(){if(!this.styles)return!0;var e=this.styles;for(var t in e)for(var n in e[t])for(var r in e[t][n])return!1;return!0},setSelectionStart:function(e){this.selectionStart!==e&&(this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})),this.selectionStart=e,this.hiddenTextarea&&(this.hiddenTextarea.selectionStart=e)},setSelectionEnd:function(e){this.selectionEnd!==e&&(this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})),this.selectionEnd=e,this.hiddenTextarea&&(this.hiddenTextarea.selectionEnd=e)},getSelectionStyles:function(e,t){if(arguments.length===2){var n=[];for(var r=e;r<t;r++)n.push(this.getSelectionStyles(r));return n}var i=this.get2DCursorLocation(e);return this.styles[i.lineIndex]?this.styles[i.lineIndex][i.charIndex]||{}:{}},setSelectionStyles:function(e){if(this.selectionStart===this.selectionEnd)this._extendStyles(this.selectionStart,e);else for(var t=this.selectionStart;t<this.selectionEnd;t++)this._extendStyles(t,e);return this},_extendStyles:function(e,t){var n=this.get2DCursorLocation(e);this.styles[n.lineIndex]||(this.styles[n.lineIndex]={}),this.styles[n.lineIndex][n.charIndex]||(this.styles[n.lineIndex][n.charIndex]={}),fabric.util.object.extend(this.styles[n.lineIndex][n.charIndex],t)},_render:function(e){this.callSuper("_render",e),this.ctx=e,this.isEditing&&this.renderCursorOrSelection()},renderCursorOrSelection:function(){if(!this.active)return;var e=this.text.split(""),t;this.selectionStart===this.selectionEnd?(t=this._getCursorBoundaries(e,"cursor"),this.renderCursor(t)):(t=this._getCursorBoundaries(e,"selection"),this.renderSelection(e,t))},get2DCursorLocation:function(e){typeof e=="undefined"&&(e=this.selectionStart);var t=this.text.slice(0,e),n=t.split(this._reNewline);return{lineIndex:n.length-1,charIndex:n[n.length-1].length}},getCurrentCharStyle:function(e,t){var n=this.styles[e]&&this.styles[e][t===0?0:t-1];return{fontSize:n&&n.fontSize||this.fontSize,fill:n&&n.fill||this.fill,textBackgroundColor:n&&n.textBackgroundColor||this.textBackgroundColor,textDecoration:n&&n.textDecoration||this.textDecoration,fontFamily:n&&n.fontFamily||this.fontFamily,fontWeight:n&&n.fontWeight||this.fontWeight,fontStyle:n&&n.fontStyle||this.fontStyle,stroke:n&&n.stroke||this.stroke,strokeWidth:n&&n.strokeWidth||this.strokeWidth}},getCurrentCharFontSize:function(e,t){return this.styles[e]&&this.styles[e][t===0?0:t-1]&&this.styles[e][t===0?0:t-1].fontSize||this.fontSize},getCurrentCharColor:function(e,t){return this.styles[e]&&this.styles[e][t===0?0:t-1]&&this.styles[e][t===0?0:t-1].fill||this.cursorColor},_getCursorBoundaries:function(e,t){var n=this.get2DCursorLocation(),r=this.text.split(this._reNewline),i=Math.round(this._getLeftOffset()),s=-this.height/2,o=this._getCursorBoundariesOffsets(e,t,n,r);return{left:i,top:s,leftOffset:o.left+o.lineLeft,topOffset:o.top}},_getCursorBoundariesOffsets:function(e,t,n,r){var i=0,s=0,o=0,u=0,a=t==="cursor"?this._getHeightOfLine(this.ctx,0)-this.getCurrentCharFontSize(n.lineIndex,n.charIndex):0;for(var f=0;f<this.selectionStart;f++){if(e[f]==="\n"){u=0;var l=s+(t==="cursor"?1:0);a+=this._getCachedLineHeight(l),s++,o=0}else u+=this._getWidthOfChar(this.ctx,e[f],s,o),o++;i=this._getCachedLineOffset(s,r)}return this._clearCache(),{top:a,left:u,lineLeft:i}},_clearCache:function(){this.__lineWidths={},this.__lineHeights={},this.__lineOffsets={}},_getCachedLineHeight:function(e){return this.__lineHeights[e]||(this.__lineHeights[e]=this._getHeightOfLine(this.ctx,e))},_getCachedLineWidth:function(e,t){return this.__lineWidths[e]||(this.__lineWidths[e]=this._getWidthOfLine(this.ctx,e,t))},_getCachedLineOffset:function(e,t){var n=this._getCachedLineWidth(e,t);return this.__lineOffsets[e]||(this.__lineOffsets[e]=this._getLineLeftOffset(n))},renderCursor:function(e){var t=this.ctx;t.save();var n=this.get2DCursorLocation(),r=n.lineIndex,i=n.charIndex,s=this.getCurrentCharFontSize(r,i),o=r===0&&i===0?this._getCachedLineOffset(r,this.text.split(this._reNewline)):e.leftOffset;t.fillStyle=this.getCurrentCharColor(r,i),t.globalAlpha=this.__isMousedown?1:this._currentCursorOpacity,t.fillRect(e.left+o,e.top+e.topOffset,this.cursorWidth/this.scaleX,s),t.restore()},renderSelection:function(e,t){var n=this.ctx;n.save(),n.fillStyle=this.selectionColor;var r=this.get2DCursorLocation(this.selectionStart),i=this.get2DCursorLocation(this.selectionEnd),s=r.lineIndex,o=i.lineIndex,u=this.text.split(this._reNewline);for(var a=s;a<=o;a++){var f=this._getCachedLineOffset(a,u)||0,l=this._getCachedLineHeight(a),c=0;if(a===s)for(var h=0,p=u[a].length;h<p;h++)h>=r.charIndex&&(a!==o||h<i.charIndex)&&(c+=this._getWidthOfChar(n,u[a][h],a,h)),h<r.charIndex&&(f+=this._getWidthOfChar(n,u[a][h],a,h));else if(a>s&&a<o)c+=this._getCachedLineWidth(a,u)||5;else if(a===o)for(var d=0,v=i.charIndex;d<v;d++)c+=this._getWidthOfChar(n,u[a][d],a,d);n.fillRect(t.left+f,t.top+t.topOffset,c,l),t.topOffset+=l}n.restore()},_renderChars:function(e,t,n,r,i,s){if(this.isEmptyStyles())return this._renderCharsFast(e,t,n,r,i);this.skipTextAlign=!0,r-=this.textAlign==="center"?this.width/2:this.textAlign==="right"?this.width:0;var o=this.text.split(this._reNewline),u=this._getWidthOfLine(t,s,o),a=this._getHeightOfLine(t,s,o),f=this._getLineLeftOffset(u),l=n.split(""),c,h="";r+=f||0,t.save();for(var p=0,d=l.length;p<=d;p++){c=c||this.getCurrentCharStyle(s,p);var v=this.getCurrentCharStyle(s,p+1);if(this._hasStyleChanged(c,v)||p===d)this._renderChar(e,t,s,p-1,h,r,i,a),h="",c=v;h+=l[p]}t.restore()},_renderCharsFast:function(e,t,n,r,i){this.skipTextAlign=!1,e==="fillText"&&this.fill&&this.callSuper("_renderChars",e,t,n,r,i),e==="strokeText"&&this.stroke&&this.callSuper("_renderChars",e,t,n,r,i)},_renderChar:function(e,t,n,r,i,s,o,u){var a,f,l;if(this.styles&&this.styles[n]&&(a=this.styles[n][r])){var c=a.stroke||this.stroke,h=a.fill||this.fill;t.save(),f=this._applyCharStylesGetWidth(t,i,n,r,a),l=this._getHeightOfChar(t,i,n,r),h&&t.fillText(i,s,o),c&&t.strokeText(i,s,o),this._renderCharDecoration(t,a,s,o,f,u,l),t.restore(),t.translate(f,0)}else e==="strokeText"&&this.stroke&&t[e](i,s,o),e==="fillText"&&this.fill&&t[e](i,s,o),f=this._applyCharStylesGetWidth(t,i,n,r),this._renderCharDecoration(t,null,s,o,f,u),t.translate(t.measureText(i).width,0)},_hasStyleChanged:function(e,t){return e.fill!==t.fill||e.fontSize!==t.fontSize||e.textBackgroundColor!==t.textBackgroundColor||e.textDecoration!==t.textDecoration||e.fontFamily!==t.fontFamily||e.fontWeight!==t.fontWeight||e.fontStyle!==t.fontStyle||e.stroke!==t.stroke||e.strokeWidth!==t.strokeWidth},_renderCharDecoration:function(e,t,n,r,i,s,o){var u=t?t.textDecoration||this.textDecoration:this.textDecoration,a=(t?t.fontSize:null)||this.fontSize;if(!u)return;u.indexOf("underline")>-1&&this._renderCharDecorationAtOffset(e,n,r+this.fontSize/this._fontSizeFraction,i,0,this.fontSize/20),u.indexOf("line-through")>-1&&this._renderCharDecorationAtOffset(e,n,r+this.fontSize/this._fontSizeFraction,i,o/2,a/20),u.indexOf("overline")>-1&&this._renderCharDecorationAtOffset(e,n,r,i,s-this.fontSize/this._fontSizeFraction,this.fontSize/20)},_renderCharDecorationAtOffset:function(e,t,n,r,i,s){e.fillRect(t,n-i,r,s)},_renderTextLine:function(e,t,n,r,i,s){i+=this.fontSize/4,this.callSuper("_renderTextLine",e,t,n,r,i,s)},_renderTextDecoration:function(e,t){if(this.isEmptyStyles())return this.callSuper("_renderTextDecoration",e,t)},_renderTextLinesBackground:function(e,t){if(!this.textBackgroundColor&&!this.styles)return;e.save(),this.textBackgroundColor&&(e.fillStyle=this.textBackgroundColor);var n=0,r=this.fontSize/this._fontSizeFraction;for(var i=0,s=t.length;i<s;i++){var o=this._getHeightOfLine(e,i,t);if(t[i]===""){n+=o;continue}var u=this._getWidthOfLine(e,i,t),a=this._getLineLeftOffset(u);this.textBackgroundColor&&(e.fillStyle=this.textBackgroundColor,e.fillRect(this._getLeftOffset()+a,this._getTopOffset()+n+r,u,o));if(this.styles[i])for(var f=0,l=t[i].length;f<l;f++)if(this.styles[i]&&this.styles[i][f]&&this.styles[i][f].textBackgroundColor){var c=t[i][f];e.fillStyle=this.styles[i][f].textBackgroundColor,e.fillRect(this._getLeftOffset()+a+this._getWidthOfCharsAt(e,i,f,t),this._getTopOffset()+n+r,this._getWidthOfChar(e,c,i,f,t)+1,o)}n+=o}e.restore()},_getCacheProp:function(e,t){return e+t.fontFamily+t.fontSize+t.fontWeight+t.fontStyle+t.shadow},_applyCharStylesGetWidth:function(t,n,r,i,s){var o=s||this.styles[r]&&this.styles[r][i];o?o=e(o):o={},this._applyFontStyles(o);var u=this._getCacheProp(n,o);if(this.isEmptyStyles()&&this._charWidthsCache[u]&&this.caching)return this._charWidthsCache[u];typeof o.shadow=="string"&&(o.shadow=new fabric.Shadow(o.shadow));var a=o.fill||this.fill;return t.fillStyle=a.toLive?a.toLive(t):a,o.stroke&&(t.strokeStyle=o.stroke&&o.stroke.toLive?o.stroke.toLive(t):o.stroke),t.lineWidth=o.strokeWidth||this.strokeWidth,t.font=this._getFontDeclaration.call(o),this._setShadow.call(o,t),this.caching?(this._charWidthsCache[u]||(this._charWidthsCache[u]=t.measureText(n).width),this._charWidthsCache[u]):t.measureText(n).width},_applyFontStyles:function(e){e.fontFamily||(e.fontFamily=this.fontFamily),e.fontSize||(e.fontSize=this.fontSize),e.fontWeight||(e.fontWeight=this.fontWeight),e.fontStyle||(e.fontStyle=this.fontStyle)},_getStyleDeclaration:function(t,n){return this.styles[t]&&this.styles[t][n]?e(this.styles[t][n]):{}},_getWidthOfChar:function(e,t,n,r){var i=this._getStyleDeclaration(n,r);this._applyFontStyles(i);var s=this._getCacheProp(t,i);if(this._charWidthsCache[s]&&this.caching)return this._charWidthsCache[s];if(e){e.save();var o=this._applyCharStylesGetWidth(e,t,n,r);return e.restore(),o}},_getHeightOfChar:function(e,t,n,r){return this.styles[n]&&this.styles[n][r]?this.styles[n][r].fontSize||this.fontSize:this.fontSize},_getWidthOfCharAt:function(e,t,n,r){r=r||this.text.split(this._reNewline);var i=r[t].split("")[n];return this._getWidthOfChar(e,i,t,n)},_getHeightOfCharAt:function(e,t,n,r){r=r||this.text.split(this._reNewline);var i=r[t].split("")[n];return this._getHeightOfChar(e,i,t,n)},_getWidthOfCharsAt:function(e,t,n,r){var i=0;for(var s=0;s<n;s++)i+=this._getWidthOfCharAt(e,t,s,r);return i},_getWidthOfLine:function(e,t,n){return this._getWidthOfCharsAt(e,t,n[t].length,n)},_getTextWidth:function(e,t){if(this.isEmptyStyles())return this.callSuper("_getTextWidth",e,t);var n=this._getWidthOfLine(e,0,t);for(var r=1,i=t.length;r<i;r++){var s=this._getWidthOfLine(e,r,t);s>n&&(n=s)}return n},_getHeightOfLine:function(e,t,n){n=n||this.text.split(this._reNewline);var r=this._getHeightOfChar(e,n[t][0],t,0),i=n[t],s=i.split("");for(var o=1,u=s.length;o<u;o++){var a=this._getHeightOfChar(e,s[o],t,o);a>r&&(r=a)}return r*this.lineHeight},_getTextHeight:function(e,t){var n=0;for(var r=0,i=t.length;r<i;r++)n+=this._getHeightOfLine(e,r,t);return n},_getTopOffset:function(){var e=fabric.Text.prototype._getTopOffset.call(this);return e-this.fontSize/this._fontSizeFraction},_renderTextBoxBackground:function(e){if(!this.backgroundColor)return;e.save(),e.fillStyle=this.backgroundColor,e.fillRect(this._getLeftOffset(),this._getTopOffset()+this.fontSize/this._fontSizeFraction,this.width,this.height),e.restore()},toObject:function(t){return fabric.util.object.extend(this.callSuper("toObject",t),{styles:e(this.styles)})}}),fabric.IText.fromObject=function(t){return new fabric.IText(t.text,e(t))},fabric.IText.instances=[]}(),function(){var e=fabric.util.object.clone;fabric.util.object.extend(fabric.IText.prototype,{initBehavior:function(){this.initAddedHandler(),this.initCursorSelectionHandlers(),this.initDoubleClickSimulation()},initSelectedHandler:function(){this.on("selected",function(){var e=this;setTimeout(function(){e.selected=!0},100)})},initAddedHandler:function(){this.on("added",function(){this.canvas&&!this.canvas._hasITextHandlers&&(this.canvas._hasITextHandlers=!0,this._initCanvasHandlers())})},_initCanvasHandlers:function(){this.canvas.on("selection:cleared",function(){fabric.IText.prototype.exitEditingOnOthers.call()}),this.canvas.on("mouse:up",function(){fabric.IText.instances.forEach(function(e){e.__isMousedown=!1})}),this.canvas.on("object:selected",function(e){fabric.IText.prototype.exitEditingOnOthers.call(e.target)})},_tick:function(){var e=this;if(this._abortCursorAnimation)return;this.animate("_currentCursorOpacity",1,{duration:this.cursorDuration,onComplete:function(){e._onTickComplete()},onChange:function(){e.canvas&&e.canvas.renderAll()},abort:function(){return e._abortCursorAnimation}})},_onTickComplete:function(){if(this._abortCursorAnimation)return;var e=this;this._cursorTimeout1&&clearTimeout(this._cursorTimeout1),this._cursorTimeout1=setTimeout(function(){e.animate("_currentCursorOpacity",0,{duration:this.cursorDuration/2,onComplete:function(){e._tick()},onChange:function(){e.canvas&&e.canvas.renderAll()},abort:function(){return e._abortCursorAnimation}})},100)},initDelayedCursor:function(e){var t=this,n=e?0:this.cursorDelay;e&&(this._abortCursorAnimation=!0,clearTimeout(this._cursorTimeout1),this._currentCursorOpacity=1,this.canvas&&this.canvas.renderAll()),this._cursorTimeout2&&clearTimeout(this._cursorTimeout2),this._cursorTimeout2=setTimeout(function(){t._abortCursorAnimation=!1,t._tick()},n)},abortCursorAnimation:function(){this._abortCursorAnimation=!0,clearTimeout(this._cursorTimeout1),clearTimeout(this._cursorTimeout2),this._currentCursorOpacity=0,this.canvas&&this.canvas.renderAll();var e=this;setTimeout(function(){e._abortCursorAnimation=!1},10)},selectAll:function(){this.selectionStart=0,this.selectionEnd=this.text.length,this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})},getSelectedText:function(){return this.text.slice(this.selectionStart,this.selectionEnd)},findWordBoundaryLeft:function(e){var t=0,n=e-1;if(this._reSpace.test(this.text.charAt(n)))while(this._reSpace.test(this.text.charAt(n)))t++,n--;while(/\S/.test(this.text.charAt(n))&&n>-1)t++,n--;return e-t},findWordBoundaryRight:function(e){var t=0,n=e;if(this._reSpace.test(this.text.charAt(n)))while(this._reSpace.test(this.text.charAt(n)))t++,n++;while(/\S/.test(this.text.charAt(n))&&n<this.text.length)t++,n++;return e+t},findLineBoundaryLeft:function(e){var t=0,n=e-1;while(!/\n/.test(this.text.charAt(n))&&n>-1)t++,n--;return e-t},findLineBoundaryRight:function(e){var t=0,n=e;while(!/\n/.test(this.text.charAt(n))&&n<this.text.length)t++,n++;return e+t},getNumNewLinesInSelectedText:function(){var e=this.getSelectedText(),t=0;for(var n=0,r=e.split(""),i=r.length;n<i;n++)r[n]==="\n"&&t++;return t},searchWordBoundary:function(e,t){var n=this._reSpace.test(this.text.charAt(e))?e-1:e,r=this.text.charAt(n),i=/[ \n\.,;!\?\-]/;while(!i.test(r)&&n>0&&n<this.text.length)n+=t,r=this.text.charAt(n);return i.test(r)&&r!=="\n"&&(n+=t===1?0:1),n},selectWord:function(e){var t=this.searchWordBoundary(e,-1),n=this.searchWordBoundary(e,1);this.setSelectionStart(t),this.setSelectionEnd(n),this.initDelayedCursor(!0)},selectLine:function(e){var t=this.findLineBoundaryLeft(e),n=this.findLineBoundaryRight(e);this.setSelectionStart(t),this.setSelectionEnd(n),this.initDelayedCursor(!0)},enterEditing:function(){if(this.isEditing||!this.editable)return;return this.exitEditingOnOthers(),this.isEditing=!0,this.initHiddenTextarea(),this._updateTextarea(),this._saveEditingProps(),this._setEditingProps(),this._tick(),this.canvas&&this.canvas.renderAll(),this.fire("editing:entered"),this.canvas&&this.canvas.fire("text:editing:entered",{target:this}),this},exitEditingOnOthers:function(){fabric.IText.instances.forEach(function(e){e.selected=!1,e.isEditing&&e.exitEditing()},this)},_setEditingProps:function(){this.hoverCursor="text",this.canvas&&(this.canvas.defaultCursor=this.canvas.moveCursor="text"),this.borderColor=this.editingBorderColor,this.hasControls=this.selectable=!1,this.lockMovementX=this.lockMovementY=!0},_updateTextarea:function(){if(!this.hiddenTextarea)return;this.hiddenTextarea.value=this.text,this.hiddenTextarea.selectionStart=this.selectionStart},_saveEditingProps:function(){this._savedProps={hasControls:this.hasControls,borderColor:this.borderColor,lockMovementX:this.lockMovementX,lockMovementY:this.lockMovementY,hoverCursor:this.hoverCursor,defaultCursor
+:this.canvas&&this.canvas.defaultCursor,moveCursor:this.canvas&&this.canvas.moveCursor}},_restoreEditingProps:function(){if(!this._savedProps)return;this.hoverCursor=this._savedProps.overCursor,this.hasControls=this._savedProps.hasControls,this.borderColor=this._savedProps.borderColor,this.lockMovementX=this._savedProps.lockMovementX,this.lockMovementY=this._savedProps.lockMovementY,this.canvas&&(this.canvas.defaultCursor=this._savedProps.defaultCursor,this.canvas.moveCursor=this._savedProps.moveCursor)},exitEditing:function(){return this.selected=!1,this.isEditing=!1,this.selectable=!0,this.selectionEnd=this.selectionStart,this.hiddenTextarea&&this.canvas&&this.hiddenTextarea.parentNode.removeChild(this.hiddenTextarea),this.hiddenTextarea=null,this.abortCursorAnimation(),this._restoreEditingProps(),this._currentCursorOpacity=0,this.fire("editing:exited"),this.canvas&&this.canvas.fire("text:editing:exited",{target:this}),this},_removeExtraneousStyles:function(){var e=this.text.split(this._reNewline);for(var t in this.styles)e[t]||delete this.styles[t]},_removeCharsFromTo:function(e,t){var n=t;while(n!==e){var r=this.get2DCursorLocation(n).charIndex;n--;var i=this.get2DCursorLocation(n).charIndex,s=i>r;s?this.removeStyleObject(s,n+1):this.removeStyleObject(this.get2DCursorLocation(n).charIndex===0,n)}this.text=this.text.slice(0,e)+this.text.slice(t)},insertChars:function(e){var t=this.text.slice(this.selectionStart,this.selectionStart+1)==="\n";this.text=this.text.slice(0,this.selectionStart)+e+this.text.slice(this.selectionEnd),this.selectionStart===this.selectionEnd&&this.insertStyleObjects(e,t,this.copiedStyles),this.selectionStart+=e.length,this.selectionEnd=this.selectionStart,this.canvas&&this.canvas.renderAll().renderAll(),this.setCoords(),this.fire("changed"),this.canvas&&this.canvas.fire("text:changed",{target:this})},insertNewlineStyleObject:function(t,n,r){this.shiftLineStyles(t,1),this.styles[t+1]||(this.styles[t+1]={});var i=this.styles[t][n-1],s={};if(r)s[0]=e(i),this.styles[t+1]=s;else{for(var o in this.styles[t])parseInt(o,10)>=n&&(s[parseInt(o,10)-n]=this.styles[t][o],delete this.styles[t][o]);this.styles[t+1]=s}},insertCharStyleObject:function(t,n,r){var i=this.styles[t],s=e(i);n===0&&!r&&(n=1);for(var o in s){var u=parseInt(o,10);u>=n&&(i[u+1]=s[u])}this.styles[t][n]=r||e(i[n-1])},insertStyleObjects:function(e,t,n){if(this.isEmptyStyles())return;var r=this.get2DCursorLocation(),i=r.lineIndex,s=r.charIndex;this.styles[i]||(this.styles[i]={}),e==="\n"?this.insertNewlineStyleObject(i,s,t):n?this._insertStyles(n):this.insertCharStyleObject(i,s)},_insertStyles:function(e){for(var t=0,n=e.length;t<n;t++){var r=this.get2DCursorLocation(this.selectionStart+t),i=r.lineIndex,s=r.charIndex;this.insertCharStyleObject(i,s,e[t])}},shiftLineStyles:function(t,n){var r=e(this.styles);for(var i in this.styles){var s=parseInt(i,10);s>t&&(this.styles[s+n]=r[s])}},removeStyleObject:function(t,n){var r=this.get2DCursorLocation(n),i=r.lineIndex,s=r.charIndex;if(t){var o=this.text.split(this._reNewline),u=o[i-1],a=u?u.length:0;this.styles[i-1]||(this.styles[i-1]={});for(s in this.styles[i])this.styles[i-1][parseInt(s,10)+a]=this.styles[i][s];this.shiftLineStyles(i,-1)}else{var f=this.styles[i];if(f){var l=this.selectionStart===this.selectionEnd?-1:0;delete f[s+l]}var c=e(f);for(var h in c){var p=parseInt(h,10);p>=s&&p!==0&&(f[p-1]=c[p],delete f[p])}}},insertNewline:function(){this.insertChars("\n")}})}(),fabric.util.object.extend(fabric.IText.prototype,{initDoubleClickSimulation:function(){this.__lastClickTime=+(new Date),this.__lastLastClickTime=+(new Date),this.__lastPointer={},this.on("mousedown",this.onMouseDown.bind(this))},onMouseDown:function(e){this.__newClickTime=+(new Date);var t=this.canvas.getPointer(e.e);this.isTripleClick(t)?(this.fire("tripleclick",e),this._stopEvent(e.e)):this.isDoubleClick(t)&&(this.fire("dblclick",e),this._stopEvent(e.e)),this.__lastLastClickTime=this.__lastClickTime,this.__lastClickTime=this.__newClickTime,this.__lastPointer=t,this.__lastIsEditing=this.isEditing,this.__lastSelected=this.selected},isDoubleClick:function(e){return this.__newClickTime-this.__lastClickTime<500&&this.__lastPointer.x===e.x&&this.__lastPointer.y===e.y&&this.__lastIsEditing},isTripleClick:function(e){return this.__newClickTime-this.__lastClickTime<500&&this.__lastClickTime-this.__lastLastClickTime<500&&this.__lastPointer.x===e.x&&this.__lastPointer.y===e.y},_stopEvent:function(e){e.preventDefault&&e.preventDefault(),e.stopPropagation&&e.stopPropagation()},initCursorSelectionHandlers:function(){this.initSelectedHandler(),this.initMousedownHandler(),this.initMousemoveHandler(),this.initMouseupHandler(),this.initClicks()},initClicks:function(){this.on("dblclick",function(e){this.selectWord(this.getSelectionStartFromPointer(e.e))}),this.on("tripleclick",function(e){this.selectLine(this.getSelectionStartFromPointer(e.e))})},initMousedownHandler:function(){this.on("mousedown",function(e){var t=this.canvas.getPointer(e.e);this.__mousedownX=t.x,this.__mousedownY=t.y,this.__isMousedown=!0,this.hiddenTextarea&&this.canvas&&this.canvas.wrapperEl.appendChild(this.hiddenTextarea),this.selected&&this.setCursorByClick(e.e),this.isEditing&&(this.__selectionStartOnMouseDown=this.selectionStart,this.initDelayedCursor(!0))})},initMousemoveHandler:function(){this.on("mousemove",function(e){if(!this.__isMousedown||!this.isEditing)return;var t=this.getSelectionStartFromPointer(e.e);t>=this.__selectionStartOnMouseDown?(this.setSelectionStart(this.__selectionStartOnMouseDown),this.setSelectionEnd(t)):(this.setSelectionStart(t),this.setSelectionEnd(this.__selectionStartOnMouseDown))})},_isObjectMoved:function(e){var t=this.canvas.getPointer(e);return this.__mousedownX!==t.x||this.__mousedownY!==t.y},initMouseupHandler:function(){this.on("mouseup",function(e){this.__isMousedown=!1;if(this._isObjectMoved(e.e))return;this.__lastSelected&&(this.enterEditing(),this.initDelayedCursor(!0)),this.selected=!0})},setCursorByClick:function(e){var t=this.getSelectionStartFromPointer(e);e.shiftKey?t<this.selectionStart?(this.setSelectionEnd(this.selectionStart),this.setSelectionStart(t)):this.setSelectionEnd(t):(this.setSelectionStart(t),this.setSelectionEnd(t))},_getLocalRotatedPointer:function(e){var t=this.canvas.getPointer(e),n=new fabric.Point(t.x,t.y),r=new fabric.Point(this.left,this.top),i=fabric.util.rotatePoint(n,r,fabric.util.degreesToRadians(-this.angle));return this.getLocalPointer(e,i)},getSelectionStartFromPointer:function(e){var t=this._getLocalRotatedPointer(e),n=this.text.split(this._reNewline),r=0,i=0,s=0,o=0,u;for(var a=0,f=n.length;a<f;a++){s+=this._getHeightOfLine(this.ctx,a)*this.scaleY;var l=this._getWidthOfLine(this.ctx,a,n),c=this._getLineLeftOffset(l);i=c*this.scaleX,this.flipX&&(n[a]=n[a].split("").reverse().join(""));for(var h=0,p=n[a].length;h<p;h++){var d=n[a][h];r=i,i+=this._getWidthOfChar(this.ctx,d,a,this.flipX?p-h:h)*this.scaleX;if(s<=t.y||i<=t.x){o++;continue}return this._getNewSelectionStartFromOffset(t,r,i,o+a,p)}if(t.y<s)return this._getNewSelectionStartFromOffset(t,r,i,o+a,p,h)}if(typeof u=="undefined")return this.text.length},_getNewSelectionStartFromOffset:function(e,t,n,r,i,s){var o=e.x-t,u=n-e.x,a=u>o?0:1,f=r+a;return this.flipX&&(f=i-f),f>this.text.length&&(f=this.text.length),s===i&&f--,f}}),fabric.util.object.extend(fabric.IText.prototype,{initHiddenTextarea:function(){this.hiddenTextarea=fabric.document.createElement("textarea"),this.hiddenTextarea.setAttribute("autocapitalize","off"),this.hiddenTextarea.style.cssText="position: absolute; top: 0; left: -9999px",fabric.document.body.appendChild(this.hiddenTextarea),fabric.util.addListener(this.hiddenTextarea,"keydown",this.onKeyDown.bind(this)),fabric.util.addListener(this.hiddenTextarea,"keypress",this.onKeyPress.bind(this)),fabric.util.addListener(this.hiddenTextarea,"copy",this.copy.bind(this)),fabric.util.addListener(this.hiddenTextarea,"paste",this.paste.bind(this)),!this._clickHandlerInitialized&&this.canvas&&(fabric.util.addListener(this.canvas.upperCanvasEl,"click",this.onClick.bind(this)),this._clickHandlerInitialized=!0)},_keysMap:{8:"removeChars",13:"insertNewline",37:"moveCursorLeft",38:"moveCursorUp",39:"moveCursorRight",40:"moveCursorDown",46:"forwardDelete"},_ctrlKeysMap:{65:"selectAll",88:"cut"},onClick:function(){this.hiddenTextarea&&this.hiddenTextarea.focus()},onKeyDown:function(e){if(!this.isEditing)return;if(e.keyCode in this._keysMap)this[this._keysMap[e.keyCode]](e);else{if(!(e.keyCode in this._ctrlKeysMap&&(e.ctrlKey||e.metaKey)))return;this[this._ctrlKeysMap[e.keyCode]](e)}e.stopPropagation(),this.canvas&&this.canvas.renderAll()},forwardDelete:function(e){this.selectionStart===this.selectionEnd&&this.moveCursorRight(e),this.removeChars(e)},copy:function(e){var t=this.getSelectedText(),n=this._getClipboardData(e);n&&n.setData("text",t),this.copiedText=t,this.copiedStyles=this.getSelectionStyles(this.selectionStart,this.selectionEnd)},paste:function(e){var t=null,n=this._getClipboardData(e);n?t=n.getData("text"):t=this.copiedText,t&&this.insertChars(t)},cut:function(e){if(this.selectionStart===this.selectionEnd)return;this.copy(),this.removeChars(e)},_getClipboardData:function(e){return e&&(e.clipboardData||fabric.window.clipboardData)},onKeyPress:function(e){if(!this.isEditing||e.metaKey||e.ctrlKey||e.keyCode===8||e.keyCode===13)return;this.insertChars(String.fromCharCode(e.which)),e.stopPropagation()},getDownCursorOffset:function(e,t){var n=t?this.selectionEnd:this.selectionStart,r=this.text.split(this._reNewline),i,s,o=this.text.slice(0,n),u=this.text.slice(n),a=o.slice(o.lastIndexOf("\n")+1),f=u.match(/(.*)\n?/)[1],l=(u.match(/.*\n(.*)\n?/)||{})[1]||"",c=this.get2DCursorLocation(n);if(c.lineIndex===r.length-1||e.metaKey)return this.text.length-n;var h=this._getWidthOfLine(this.ctx,c.lineIndex,r);s=this._getLineLeftOffset(h);var p=s,d=c.lineIndex;for(var v=0,m=a.length;v<m;v++)i=a[v],p+=this._getWidthOfChar(this.ctx,i,d,v);var g=this._getIndexOnNextLine(c,l,p,r);return f.length+1+g},_getIndexOnNextLine:function(e,t,n,r){var i=e.lineIndex+1,s=this._getWidthOfLine(this.ctx,i,r),o=this._getLineLeftOffset(s),u=o,a=0,f;for(var l=0,c=t.length;l<c;l++){var h=t[l],p=this._getWidthOfChar(this.ctx,h,i,l);u+=p;if(u>n){f=!0;var d=u-p,v=u,m=Math.abs(d-n),g=Math.abs(v-n);a=g<m?l+1:l;break}}return f||(a=t.length),a},moveCursorDown:function(e){this.abortCursorAnimation(),this._currentCursorOpacity=1;var t=this.getDownCursorOffset(e,this._selectionDirection==="right");e.shiftKey?this.moveCursorDownWithShift(t):this.moveCursorDownWithoutShift(t),this.initDelayedCursor()},moveCursorDownWithoutShift:function(e){this._selectionDirection="right",this.selectionStart+=e,this.selectionStart>this.text.length&&(this.selectionStart=this.text.length),this.selectionEnd=this.selectionStart},moveCursorDownWithShift:function(e){if(this._selectionDirection==="left"&&this.selectionStart!==this.selectionEnd){this.selectionStart+=e,this._selectionDirection="left";return}this._selectionDirection="right",this.selectionEnd+=e,this.selectionEnd>this.text.length&&(this.selectionEnd=this.text.length)},getUpCursorOffset:function(e,t){var n=t?this.selectionEnd:this.selectionStart,r=this.get2DCursorLocation(n);if(r.lineIndex===0||e.metaKey)return n;var i=this.text.slice(0,n),s=i.slice(i.lastIndexOf("\n")+1),o=(i.match(/\n?(.*)\n.*$/)||{})[1]||"",u=this.text.split(this._reNewline),a,f=this._getWidthOfLine(this.ctx,r.lineIndex,u),l=this._getLineLeftOffset(f),c=l,h=r.lineIndex;for(var p=0,d=s.length;p<d;p++)a=s[p],c+=this._getWidthOfChar(this.ctx,a,h,p);var v=this._getIndexOnPrevLine(r,o,c,u);return o.length-v+s.length},_getIndexOnPrevLine:function(e,t,n,r){var i=e.lineIndex-1,s=this._getWidthOfLine(this.ctx,i,r),o=this._getLineLeftOffset(s),u=o,a=0,f;for(var l=0,c=t.length;l<c;l++){var h=t[l],p=this._getWidthOfChar(this.ctx,h,i,l);u+=p;if(u>n){f=!0;var d=u-p,v=u,m=Math.abs(d-n),g=Math.abs(v-n);a=g<m?l:l-1;break}}return f||(a=t.length-1),a},moveCursorUp:function(e){this.abortCursorAnimation(),this._currentCursorOpacity=1;var t=this.getUpCursorOffset(e,this._selectionDirection==="right");e.shiftKey?this.moveCursorUpWithShift(t):this.moveCursorUpWithoutShift(t),this.initDelayedCursor()},moveCursorUpWithShift:function(e){if(this.selectionStart===this.selectionEnd)this.selectionStart-=e;else{if(this._selectionDirection==="right"){this.selectionEnd-=e,this._selectionDirection="right";return}this.selectionStart-=e}this.selectionStart<0&&(this.selectionStart=0),this._selectionDirection="left"},moveCursorUpWithoutShift:function(e){this.selectionStart===this.selectionEnd&&(this.selectionStart-=e),this.selectionStart<0&&(this.selectionStart=0),this.selectionEnd=this.selectionStart,this._selectionDirection="left"},moveCursorLeft:function(e){if(this.selectionStart===0&&this.selectionEnd===0)return;this.abortCursorAnimation(),this._currentCursorOpacity=1,e.shiftKey?this.moveCursorLeftWithShift(e):this.moveCursorLeftWithoutShift(e),this.initDelayedCursor()},_move:function(e,t,n){e.altKey?this[t]=this["findWordBoundary"+n](this[t]):e.metaKey?this[t]=this["findLineBoundary"+n](this[t]):this[t]+=n==="Left"?-1:1},_moveLeft:function(e,t){this._move(e,t,"Left")},_moveRight:function(e,t){this._move(e,t,"Right")},moveCursorLeftWithoutShift:function(e){this._selectionDirection="left",this.selectionEnd===this.selectionStart&&this._moveLeft(e,"selectionStart"),this.selectionEnd=this.selectionStart},moveCursorLeftWithShift:function(e){this._selectionDirection==="right"&&this.selectionStart!==this.selectionEnd?this._moveLeft(e,"selectionEnd"):(this._selectionDirection="left",this._moveLeft(e,"selectionStart"),this.text.charAt(this.selectionStart)==="\n"&&this.selectionStart--,this.selectionStart<0&&(this.selectionStart=0))},moveCursorRight:function(e){if(this.selectionStart>=this.text.length&&this.selectionEnd>=this.text.length)return;this.abortCursorAnimation(),this._currentCursorOpacity=1,e.shiftKey?this.moveCursorRightWithShift(e):this.moveCursorRightWithoutShift(e),this.initDelayedCursor()},moveCursorRightWithShift:function(e){this._selectionDirection==="left"&&this.selectionStart!==this.selectionEnd?this._moveRight(e,"selectionStart"):(this._selectionDirection="right",this._moveRight(e,"selectionEnd"),this.text.charAt(this.selectionEnd-1)==="\n"&&this.selectionEnd++,this.selectionEnd>this.text.length&&(this.selectionEnd=this.text.length))},moveCursorRightWithoutShift:function(e){this._selectionDirection="right",this.selectionStart===this.selectionEnd?(this._moveRight(e,"selectionStart"),this.selectionEnd=this.selectionStart):(this.selectionEnd+=this.getNumNewLinesInSelectedText(),this.selectionEnd>this.text.length&&(this.selectionEnd=this.text.length),this.selectionStart=this.selectionEnd)},removeChars:function(e){this.selectionStart===this.selectionEnd?this._removeCharsNearCursor(e):this._removeCharsFromTo(this.selectionStart,this.selectionEnd),this.selectionEnd=this.selectionStart,this._removeExtraneousStyles(),this.canvas&&this.canvas.renderAll().renderAll(),this.setCoords(),this.fire("changed"),this.canvas&&this.canvas.fire("text:changed",{target:this})},_removeCharsNearCursor:function(e){if(this.selectionStart!==0)if(e.metaKey){var t=this.findLineBoundaryLeft(this.selectionStart);this._removeCharsFromTo(t,this.selectionStart),this.selectionStart=t}else if(e.altKey){var n=this.findWordBoundaryLeft(this.selectionStart);this._removeCharsFromTo(n,this.selectionStart),this.selectionStart=n}else{var r=this.text.slice(this.selectionStart-1,this.selectionStart)==="\n";this.removeStyleObject(r),this.selectionStart--,this.text=this.text.slice(0,this.selectionStart)+this.text.slice(this.selectionStart+1)}}}),fabric.util.object.extend(fabric.IText.prototype,{_setSVGTextLineText:function(e,t,n,r,i,s){this.styles[t]?this._setSVGTextLineChars(e,t,n,r,i,s):this.callSuper("_setSVGTextLineText",e,t,n,r,i)},_setSVGTextLineChars:function(e,t,n,r,i,s){var o=t===0||this.useNative?"y":"dy",u=e.split(""),a=0,f=this._getSVGLineLeftOffset(t),l=this._getSVGLineTopOffset(t),c=this._getHeightOfLine(this.ctx,t);for(var h=0,p=u.length;h<p;h++){var d=this.styles[t][h]||{};n.push(this._createTextCharSpan(u[h],d,f,l,o,a));var v=this._getWidthOfChar(this.ctx,u[h],t,h);d.textBackgroundColor&&s.push(this._createTextCharBg(d,f,l,c,v,a)),a+=v}},_getSVGLineLeftOffset:function(e){return this._boundaries&&this._boundaries[e]?fabric.util.toFixed(this._boundaries[e].left,2):0},_getSVGLineTopOffset:function(e){var t=0;for(var n=0;n<=e;n++)t+=this._getHeightOfLine(this.ctx,n);return t-this.height/2},_createTextCharBg:function(e,t,n,r,i,s){return['<rect fill="',e.textBackgroundColor,'" transform="translate(',-this.width/2," ",-this.height+r,")",'" x="',t+s,'" y="',n+r,'" width="',i,'" height="',r,'"></rect>'].join("")},_createTextCharSpan:function(e,t,n,r,i,s){var o=this.getSvgStyles.call(fabric.util.object.extend({visible:!0,fill:this.fill,stroke:this.stroke,type:"text"},t));return['<tspan x="',n+s,'" ',i,'="',r,'" ',t.fontFamily?'font-family="'+t.fontFamily.replace(/"/g,"'")+'" ':"",t.fontSize?'font-size="'+t.fontSize+'" ':"",t.fontStyle?'font-style="'+t.fontStyle+'" ':"",t.fontWeight?'font-weight="'+t.fontWeight+'" ':"",t.textDecoration?'text-decoration="'+t.textDecoration+'" ':"",'style="',o,'">',fabric.util.string.escapeXml(e),"</tspan>"].join("")}}),function(){function request(e,t,n){var r=URL.parse(e);r.port||(r.port=r.protocol.indexOf("https:")===0?443:80);var i=r.port===443?HTTPS:HTTP,s=i.request({hostname:r.hostname,port:r.port,path:r.path,method:"GET"},function(e){var r="";t&&e.setEncoding(t),e.on("end",function(){n(r)}),e.on("data",function(t){e.statusCode===200&&(r+=t)})});s.on("error",function(e){e.errno===process.ECONNREFUSED?fabric.log("ECONNREFUSED: connection refused to "+r.hostname+":"+r.port):fabric.log(e.message)}),s.end()}function requestFs(e,t){var n=require("fs");n.readFile(e,function(e,n){if(e)throw fabric.log(e),e;t(n)})}if(typeof document!="undefined"&&typeof window!="undefined")return;var DOMParser=require("xmldom").DOMParser,URL=require("url"),HTTP=require("http"),HTTPS=require("https"),Canvas=require("canvas"),Image=require("canvas").Image;fabric.util.loadImage=function(e,t,n){function r(r){i.src=new Buffer(r,"binary"),i._src=e,t&&t.call(n,i)}var i=new Image;e&&(e instanceof Buffer||e.indexOf("data")===0)?(i.src=i._src=e,t&&t.call(n,i)):e&&e.indexOf("http")!==0?requestFs(e,r):e?request(e,"binary",r):t&&t.call(n,e)},fabric.loadSVGFromURL=function(e,t,n){e=e.replace(/^\n\s*/,"").replace(/\?.*$/,"").trim(),e.indexOf("http")!==0?requestFs(e,function(e){fabric.loadSVGFromString(e.toString(),t,n)}):request(e,"",function(e){fabric.loadSVGFromString(e,t,n)})},fabric.loadSVGFromString=function(e,t,n){var r=(new DOMParser).parseFromString(e);fabric.parseSVGDocument(r.documentElement,function(e,n){t&&t(e,n)},n)},fabric.util.getScript=function(url,callback){request(url,"",function(body){eval(body),callback&&callback()})},fabric.Image.fromObject=function(e,t){fabric.util.loadImage(e.src,function(n){var r=new fabric.Image(n);r._initConfig(e),r._initFilters(e,function(e){r.filters=e||[],t&&t(r)})})},fabric.createCanvasForNode=function(e,t,n,r){r=r||n;var i=fabric.document.createElement("canvas"),s=new Canvas(e||600,t||600,r);i.style={},i.width=s.width,i.height=s.height;var o=fabric.Canvas||fabric.StaticCanvas,u=new o(i,n);return u.contextContainer=s.getContext("2d"),u.nodeCanvas=s,u.Font=Canvas.Font,u},fabric.StaticCanvas.prototype.createPNGStream=function(){return this.nodeCanvas.createPNGStream()},fabric.StaticCanvas.prototype.createJPEGStream=function(e){return this.nodeCanvas.createJPEGStream(e)};var origSetWidth=fabric.StaticCanvas.prototype.setWidth;fabric.StaticCanvas.prototype.setWidth=function(e){return origSetWidth.call(this,e),this.nodeCanvas.width=e,this},fabric.Canvas&&(fabric.Canvas.prototype.setWidth=fabric.StaticCanvas.prototype.setWidth);var origSetHeight=fabric.StaticCanvas.prototype.setHeight;fabric.StaticCanvas.prototype.setHeight=function(e){return origSetHeight.call(this,e),this.nodeCanvas.height=e,this},fabric.Canvas&&(fabric.Canvas.prototype.setHeight=fabric.StaticCanvas.prototype.setHeight)}();
\ No newline at end of file
diff --git a/dist/fabric.min.js.gz b/dist/fabric.min.js.gz
index dc758bad9c521e97fb0a0b0fa288b87eada9c36a..807e2c508494187bfe6dd4c6072986546a2cb34b 100644
GIT binary patch
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diff --git a/dist/fabric.require.js b/dist/fabric.require.js
index fe3f9275ad5..0b245194051 100644
--- a/dist/fabric.require.js
+++ b/dist/fabric.require.js
@@ -46,6 +46,11 @@ fabric.SHARED_ATTRIBUTES = [
   "stroke-opacity", "stroke-width"
 ];
 
+/**
+ * Pixel per Inch as a default value set to 96. Can be changed for more realistic conversion.
+ */
+fabric.DPI = 96;
+
 
 (function(){
 
@@ -378,9 +383,9 @@ fabric.Collection = {
      * Rotates `point` around `origin` with `radians`
      * @static
      * @memberOf fabric.util
-     * @param {fabric.Point} The point to rotate
-     * @param {fabric.Point} The origin of the rotation
-     * @param {Number} The radians of the angle for the rotation
+     * @param {fabric.Point} point The point to rotate
+     * @param {fabric.Point} origin The origin of the rotation
+     * @param {Number} radians The radians of the angle for the rotation
      * @return {fabric.Point} The new rotated point
      */
     rotatePoint: function(point, origin, radians) {
@@ -416,19 +421,19 @@ fabric.Collection = {
         t[2] * p.x + t[3] * p.y + t[5]
       );
     },
-  
+
     /**
      * Invert transformation t
      * @static
      * @memberOf fabric.util
-     * @param  {Array} t The transform
+     * @param {Array} t The transform
      * @return {Array} The inverted transform
      */
     invertTransform: function(t) {
       var r = t.slice(),
           a = 1 / (t[0] * t[3] - t[1] * t[2]);
       r = [a * t[3], -a * t[1], -a * t[2], a * t[0], 0, 0];
-      var o = fabric.util.transformPoint({x: t[4], y: t[5]}, r);
+      var o = fabric.util.transformPoint({ x: t[4], y: t[5] }, r);
       r[4] = -o.x;
       r[5] = -o.y;
       return r;
@@ -438,7 +443,7 @@ fabric.Collection = {
      * A wrapper around Number#toFixed, which contrary to native method returns number, not string.
      * @static
      * @memberOf fabric.util
-     * @param {Number | String} number number to operate on
+     * @param {Number|String} number number to operate on
      * @param {Number} fractionDigits number of fraction digits to "leave"
      * @return {Number}
      */
@@ -446,6 +451,37 @@ fabric.Collection = {
       return parseFloat(Number(number).toFixed(fractionDigits));
     },
 
+    /**
+     * Converts from attribute value to pixel value if applicable.
+     * Returns converted pixels or original value not converted.
+     * @param {Number|String} value number to operate on
+     * @return {Number|String}
+     */
+    parseUnit: function(value) {
+      var unit = /\D{0,2}$/.exec(value),
+          number = parseFloat(value);
+
+      switch (unit[0]) {
+        case 'mm':
+          return number * fabric.DPI / 25.4;
+
+        case 'cm':
+          return number * fabric.DPI / 2.54;
+
+        case 'in':
+          return number * fabric.DPI;
+
+        case 'pt':
+          return number * fabric.DPI / 72; // or * 4 / 3
+
+        case 'pc':
+          return number * fabric.DPI / 72 * 12; // or * 16
+
+        default:
+          return number;
+      }
+    },
+
     /**
      * Function which always returns `false`.
      * @static
@@ -537,7 +573,8 @@ fabric.Collection = {
      * @memberOf fabric.util
      * @param {Array} objects Objects to enliven
      * @param {Function} callback Callback to invoke when all objects are created
-     * @param {Function} [reviver] Method for further parsing of object elements,
+     * @param {String} namespace Namespace to get klass "Class" object from
+     * @param {Function} reviver Method for further parsing of object elements,
      * called after each fabric object created.
      */
     enlivenObjects: function(objects, callback, namespace, reviver) {
@@ -1149,7 +1186,7 @@ fabric.Collection = {
     /**
      * Returns "folded" (reduced) result of iterating over elements in an array
      * @param {Function} fn Callback to invoke for each element
-     * @param {Object} [context] Context to invoke callback in
+     * @param {Object} [initial] Object to use as the first argument to the first call of the callback
      * @return {Any}
      */
     Array.prototype.reduce = function(fn /*, initial*/) {
@@ -2687,6 +2724,7 @@ if (typeof console !== 'undefined') {
       capitalize = fabric.util.string.capitalize,
       clone = fabric.util.object.clone,
       toFixed = fabric.util.toFixed,
+      parseUnit = fabric.util.parseUnit,
       multiplyTransformMatrices = fabric.util.multiplyTransformMatrices,
 
       attributesMap = {
@@ -2728,7 +2766,8 @@ if (typeof console !== 'undefined') {
   }
 
   function normalizeValue(attr, value, parentAttributes) {
-    var isArray;
+    var isArray = Object.prototype.toString.call(value) === '[object Array]',
+        parsed;
 
     if ((attr === 'fill' || attr === 'stroke') && value === 'none') {
       value = '';
@@ -2737,7 +2776,9 @@ if (typeof console !== 'undefined') {
       value = (value === 'evenodd') ? 'destination-over' : value;
     }
     else if (attr === 'strokeDashArray') {
-      value = value.replace(/,/g, ' ').split(/\s+/);
+      value = value.replace(/,/g, ' ').split(/\s+/).map(function(n) {
+        return parseInt(n);
+      });
     }
     else if (attr === 'transformMatrix') {
       if (parentAttributes && parentAttributes.transformMatrix) {
@@ -2758,11 +2799,9 @@ if (typeof console !== 'undefined') {
     else if (attr === 'originX' /* text-anchor */) {
       value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';
     }
-
-    isArray = Object.prototype.toString.call(value) === '[object Array]';
-
-    // TODO: need to normalize em, %, pt, etc. to px (!)
-    var parsed = isArray ? value.map(parseFloat) : parseFloat(value);
+    else {
+      parsed = isArray ? value.map(parseUnit) : parseUnit(value);
+    }
 
     return (!isArray && isNaN(parsed) ? value : parsed);
   }
@@ -3038,33 +3077,37 @@ if (typeof console !== 'undefined') {
 
     return styles;
   }
-  
+
   /**
    * @private
    */
   function parseUseDirectives(doc) {
-    var nodelist = doc.querySelectorAll("use");
-    for (var i = 0; i < nodelist.length; i++) {
-      var el = nodelist[i];
-      var xlink = el.getAttribute('xlink:href').substr(1);
-      var x = el.getAttribute('x') || 0;
-      var y = el.getAttribute('y') || 0;
-      var el2 = doc.getElementById(xlink).cloneNode(true);
-      var currentTrans = (el.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')';
+    var nodelist = doc.getElementsByTagName('use');
+    for (var i = 0, len = nodelist.length; i < len; i++) {
+      var el = nodelist[i],
+          xlink = el.getAttribute('xlink:href').substr(1),
+          x = el.getAttribute('x') || 0,
+          y = el.getAttribute('y') || 0,
+          el2 = doc.getElementById(xlink).cloneNode(true),
+          currentTrans = (el.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')',
+          parentNode;
+
       for (var j = 0, attrs = el.attributes, l = attrs.length; j < l; j++) {
         var attr = attrs.item(j);
-        if (attr.nodeName !== 'x' && attr.nodeName !== 'y' && attr.nodeName !== 'xlink:href') {
-          if (attr.nodeName === 'transform') {
-            currentTrans = currentTrans + ' ' + attr.nodeValue;
-          } else {
-            el2.setAttribute(attr.nodeName, attr.nodeValue);
-          }
+        if (attr.nodeName === 'x' || attr.nodeName === 'y' || attr.nodeName === 'xlink:href') continue;
+
+        if (attr.nodeName === 'transform') {
+          currentTrans = currentTrans + ' ' + attr.nodeValue;
+        }
+        else {
+          el2.setAttribute(attr.nodeName, attr.nodeValue);
         }
       }
+
       el2.setAttribute('transform', currentTrans);
       el2.removeAttribute('id');
-      var pNode=el.parentNode;
-      pNode.replaceChild(el2, el);
+      parentNode = el.parentNode;
+      parentNode.replaceChild(el2, el);
     }
   }
 
@@ -3108,9 +3151,9 @@ if (typeof console !== 'undefined') {
     return function(doc, callback, reviver) {
       if (!doc) return;
       var startTime = new Date();
-      
+
       parseUseDirectives(doc);
-      
+
       var descendants = fabric.util.toArray(doc.getElementsByTagName('*'));
 
       if (descendants.length === 0 && fabric.isLikelyNode) {
@@ -3195,18 +3238,10 @@ if (typeof console !== 'undefined') {
       callback(false);
     },
 
-    /**
-    * @param {String} url
-    * @param {Function} callback
-    */
     get: function () {
       /* NOOP */
     },
 
-    /**
-     * @param {String} url
-     * @param {Object} object
-     */
     set: function () {
       /* NOOP */
     }
@@ -3380,7 +3415,7 @@ if (typeof console !== 'undefined') {
      * Parses "points" attribute, returning an array of values
      * @static
      * @memberOf fabric
-     * @param points {String} points attribute string
+     * @param {String} points points attribute string
      * @return {Array} array of points
      */
     parsePointsAttribute: function(points) {
@@ -3717,7 +3752,7 @@ fabric.ElementsParser.prototype.checkIfDone = function() {
     /**
      * Adds value to this point
      * @param {Number} scalar
-     * @param {fabric.Point} thisArg
+     * @return {fabric.Point} thisArg
      */
     scalarAddEquals: function (scalar) {
       this.x += scalar;
@@ -5442,11 +5477,10 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * @type Array
      * @default
      */
-    viewportTransform:      [1, 0, 0, 1, 0, 0],
+    viewportTransform: [1, 0, 0, 1, 0, 0],
 
     /**
      * Callback; invoked right before object is about to be scaled/rotated
-     * @param {fabric.Object} target Object that's about to be scaled/rotated
      */
     onBeforeScaleRotate: function () {
       /* NOOP */
@@ -5733,6 +5767,8 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
 
       this.lowerCanvasEl.style.width = this.width + 'px';
       this.lowerCanvasEl.style.height = this.height + 'px';
+
+      this.viewportTransform = this.viewportTransform.slice();
     },
 
     /**
@@ -5775,8 +5811,8 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * @return {fabric.Canvas} instance
      * @chainable true
      */
-    setWidth: function (value) {
-      return this._setDimension('width', value);
+    setWidth: function (width) {
+      return this._setDimension('width', width);
     },
 
     /**
@@ -5785,8 +5821,8 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * @return {fabric.Canvas} instance
      * @chainable true
      */
-    setHeight: function (value) {
-      return this._setDimension('height', value);
+    setHeight: function (height) {
+      return this._setDimension('height', height);
     },
 
     /**
@@ -5955,7 +5991,7 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      */
     _draw: function (ctx, object) {
       if (!object) return;
- 
+
       ctx.save();
       var v = this.viewportTransform;
       ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
@@ -6703,7 +6739,7 @@ fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */
      * Provides a way to check support of some of the canvas methods
      * (either those of HTMLCanvasElement itself, or rendering context)
      *
-     * @param methodName {String} Method to check support for;
+     * @param {String} methodName Method to check support for;
      *                            Could be one of "getImageData", "toDataURL", "toDataURLWithQuality" or "setLineDash"
      * @return {Boolean | null} `true` if method is supported (or at least exists),
      *                          `null` if canvas element or context can not be initialized
@@ -6915,7 +6951,8 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
     },
 
     /**
-     * @param {Object} pointer
+     * @private
+     * @param {Object} pointer Actual mouse position related to the canvas.
      */
     _prepareForDrawing: function(pointer) {
 
@@ -6929,18 +6966,15 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * @private
-     * @param {fabric.Point} point
+     * @param {fabric.Point} point Point to be added to points array
      */
     _addPoint: function(point) {
       this._points.push(point);
     },
 
     /**
-     * Clear points array and set contextTop canvas
-     * style.
-     *
+     * Clear points array and set contextTop canvas style.
      * @private
-     *
      */
     _reset: function() {
       this._points.length = 0;
@@ -6951,9 +6985,7 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * @private
-     *
-     * @param point {pointer} (fabric.util.pointer) actual mouse position
-     *   related to the canvas.
+     * @param {Object} pointer Actual mouse position related to the canvas.
      */
     _captureDrawingPath: function(pointer) {
       var pointerPoint = new fabric.Point(pointer.x, pointer.y);
@@ -6962,19 +6994,18 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * Draw a smooth path on the topCanvas using quadraticCurveTo
-     *
      * @private
      */
     _render: function() {
-      var ctx  = this.canvas.contextTop;
-      var v = this.canvas.viewportTransform;
+      var ctx  = this.canvas.contextTop,
+          v = this.canvas.viewportTransform,
+          p1 = this._points[0],
+          p2 = this._points[1];
+
       ctx.save();
       ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
       ctx.beginPath();
 
-      var p1 = this._points[0],
-          p2 = this._points[1];
-
       //if we only have 2 points in the path and they are the same
       //it means that the user only clicked the canvas without moving the mouse
       //then we should be drawing a dot. A path isn't drawn between two identical dots
@@ -7004,19 +7035,18 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
 
     /**
      * Return an SVG path based on our captured points and their bounding box
-     *
      * @private
      */
     _getSVGPathData: function() {
       this.box = this.getPathBoundingBox(this._points);
       return this.convertPointsToSVGPath(
-        this._points, this.box.minx, this.box.maxx, this.box.miny, this.box.maxy);
+        this._points, this.box.minX, this.box.minY);
     },
 
      /**
       * Returns bounding box of a path based on given points
-      * @param {Array} points
-      * @return {Object} object with minx, miny, maxx, maxy
+      * @param {Array} points Array of points
+      * @return {Object} Object with minX, minY, maxX, maxY
       */
     getPathBoundingBox: function(points) {
       var xBounds = [],
@@ -7042,19 +7072,21 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
       yBounds.push(p1.y);
 
       return {
-        minx: utilMin(xBounds),
-        miny: utilMin(yBounds),
-        maxx: utilMax(xBounds),
-        maxy: utilMax(yBounds)
+        minX: utilMin(xBounds),
+        minY: utilMin(yBounds),
+        maxX: utilMax(xBounds),
+        maxY: utilMax(yBounds)
       };
     },
 
     /**
      * Converts points to SVG path
      * @param {Array} points Array of points
+     * @param {Number} minX
+     * @param {Number} minY
      * @return {String} SVG path
      */
-    convertPointsToSVGPath: function(points, minX, maxX, minY) {
+    convertPointsToSVGPath: function(points, minX, minY) {
       var path = [],
           p1 = new fabric.Point(points[0].x - minX, points[0].y - minY),
           p2 = new fabric.Point(points[1].x - minX, points[1].y - minY);
@@ -7078,7 +7110,7 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
     /**
      * Creates fabric.Path object to add on canvas
      * @param {String} pathData Path data
-     * @return {fabric.Path} path to add on canvas
+     * @return {fabric.Path} Path to add on canvas
      */
     createPath: function(pathData) {
       var path = new fabric.Path(pathData);
@@ -7100,7 +7132,6 @@ fabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype
      * On mouseup after drawing the path on contextTop canvas
      * we use the points captured to create an new fabric path object
      * and add it to the fabric canvas.
-     *
      */
     _finalizeAndAddPath: function() {
       var ctx = this.canvas.contextTop;
@@ -7389,6 +7420,10 @@ fabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric
     this.canvas.renderAll();
   },
 
+    /**
+     * @private
+     * @param {Array} rects
+     */
   _getOptimizedRects: function(rects) {
 
     // avoid creating duplicate rects at the same coordinates
@@ -7451,7 +7486,7 @@ fabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric
       else {
         width = this.dotWidth;
       }
-      
+
       var point = new fabric.Point(x, y);
       point.width = width;
 
@@ -7970,8 +8005,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
     /**
      * Translates object by "setting" its left/top
      * @private
-     * @param x {Number} pointer's x coordinate
-     * @param y {Number} pointer's y coordinate
+     * @param {Number} x pointer's x coordinate
+     * @param {Number} y pointer's y coordinate
      */
     _translateObject: function (x, y) {
       var target = this._currentTransform.target;
@@ -7987,9 +8022,9 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
     /**
      * Scales object by invoking its scaleX/scaleY methods
      * @private
-     * @param x {Number} pointer's x coordinate
-     * @param y {Number} pointer's y coordinate
-     * @param by {String} Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
+     * @param {Number} x pointer's x coordinate
+     * @param {Number} y pointer's y coordinate
+     * @param {String} by Either 'x' or 'y' - specifies dimension constraint by which to scale an object.
      *                    When not provided, an object is scaled by both dimensions equally
      */
     _scaleObject: function (x, y, by) {
@@ -8369,7 +8404,6 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
 
     /**
      * @private
-     * @param {HTMLElement|String} canvasEl Canvas element
      * @throws {CANVAS_INIT_ERROR} If canvas can not be initialized
      */
     _createUpperCanvas: function () {
@@ -8397,8 +8431,6 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
 
     /**
      * @private
-     * @param {Number} width
-     * @param {Number} height
      */
     _initWrapperElement: function () {
       this.wrapperEl = fabric.util.wrapElement(this.lowerCanvasEl, 'div', {
@@ -8414,7 +8446,7 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
 
     /**
      * @private
-     * @param {Element} element
+     * @param {HTMLElement} element canvas element to apply styles on
      */
     _applyCanvasStyle: function (element) {
       var width = this.getWidth() || element.width,
@@ -8758,8 +8790,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js gesture
      * @param {Event} [self] Inner Event object
      */
-    _onGesture: function(e, s) {
-      this.__onTransformGesture && this.__onTransformGesture(e, s);
+    _onGesture: function(e, self) {
+      this.__onTransformGesture && this.__onTransformGesture(e, self);
     },
 
     /**
@@ -8767,8 +8799,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js drag
      * @param {Event} [self] Inner Event object
      */
-    _onDrag: function(e, s) {
-      this.__onDrag && this.__onDrag(e, s);
+    _onDrag: function(e, self) {
+      this.__onDrag && this.__onDrag(e, self);
     },
 
     /**
@@ -8776,8 +8808,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js wheel event
      * @param {Event} [self] Inner Event object
      */
-    _onMouseWheel: function(e, s) {
-      this.__onMouseWheel && this.__onMouseWheel(e, s);
+    _onMouseWheel: function(e, self) {
+      this.__onMouseWheel && this.__onMouseWheel(e, self);
     },
 
     /**
@@ -8785,8 +8817,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js orientation change
      * @param {Event} [self] Inner Event object
      */
-    _onOrientationChange: function(e,s) {
-      this.__onOrientationChange && this.__onOrientationChange(e,s);
+    _onOrientationChange: function(e,self) {
+      this.__onOrientationChange && this.__onOrientationChange(e,self);
     },
 
     /**
@@ -8794,8 +8826,8 @@ fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fab
      * @param {Event} [e] Event object fired on Event.js shake
      * @param {Event} [self] Inner Event object
      */
-    _onShake: function(e,s) {
-      this.__onShake && this.__onShake(e,s);
+    _onShake: function(e, self) {
+      this.__onShake && this.__onShake(e,self);
     },
 
     /**
@@ -10688,6 +10720,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initGradient: function(options) {
       if (options.fill && options.fill.colorStops && !(options.fill instanceof fabric.Gradient)) {
@@ -10697,6 +10730,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initPattern: function(options) {
       if (options.fill && options.fill.source && !(options.fill instanceof fabric.Pattern)) {
@@ -10709,6 +10743,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * @private
+     * @param {Object} [options] Options object
      */
     _initClipping: function(options) {
       if (!options.clipTo || typeof options.clipTo !== 'string') return;
@@ -10758,7 +10793,6 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
      * @return {Object} Object representation of an instance
      */
     toObject: function(propertiesToInclude) {
-
       var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,
 
           object = {
@@ -11012,17 +11046,17 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
      * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _renderControls: function(ctx, noTransform) {
-      var v = this.getViewportTransform();
+      var vpt = this.getViewportTransform();
 
       ctx.save();
       if (this.active && !noTransform) {
         var center;
         if (this.group) {
-          center = fabric.util.transformPoint(this.group.getCenterPoint(), v);
+          center = fabric.util.transformPoint(this.group.getCenterPoint(), vpt);
           ctx.translate(center.x, center.y);
           ctx.rotate(degreesToRadians(this.group.angle));
         }
-        center = fabric.util.transformPoint(this.getCenterPoint(), v, null != this.group);
+        center = fabric.util.transformPoint(this.getCenterPoint(), vpt, null != this.group);
         if (this.group) {
           center.x *= this.group.scaleX;
           center.y *= this.group.scaleY;
@@ -11131,7 +11165,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Creates an instance of fabric.Image out of an object
-     * @param callback {Function} callback, invoked with an instance as a first argument
+     * @param {Function} callback callback, invoked with an instance as a first argument
      * @return {fabric.Object} thisArg
      */
     cloneAsImage: function(callback) {
@@ -11201,7 +11235,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Returns true if specified type is identical to the type of an instance
-     * @param type {String} type Type to check against
+     * @param {String} type Type to check against
      * @return {Boolean}
      */
     isType: function(type) {
@@ -11536,7 +11570,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Translates the coordinates from center to origin coordinates (based on the object's dimensions)
-     * @param {fabric.Point} point The point which corresponds to center of the object
+     * @param {fabric.Point} center The point which corresponds to center of the object
      * @param {String} originX Horizontal origin: 'left', 'center' or 'right'
      * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'
      * @return {fabric.Point}
@@ -11646,7 +11680,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Sets the position of the object taking into consideration the object's origin
-     * @param {fabric.Point} point The new position of the object
+     * @param {fabric.Point} pos The new position of the object
      * @param {String} originX Horizontal origin: 'left', 'center' or 'right'
      * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'
      * @return {void}
@@ -12003,7 +12037,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Scales an object (equally by x and y)
-     * @param value {Number} scale factor
+     * @param {Number} value Scale factor
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -12024,7 +12058,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Scales an object to a given width, with respect to bounding box (scaling by x/y equally)
-     * @param value {Number} new width value
+     * @param {Number} value New width value
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -12036,7 +12070,7 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
 
     /**
      * Scales an object to a given height, with respect to bounding box (scaling by x/y equally)
-     * @param value {Number} new height value
+     * @param {Number} value New height value
      * @return {fabric.Object} thisArg
      * @chainable
      */
@@ -12052,24 +12086,24 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
      * @chainable
      */
     setCoords: function() {
-
       var strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
           theta = degreesToRadians(this.angle),
-          vpt = this.getViewportTransform();
-
-      var f = function (p) {
-        return fabric.util.transformPoint(p, vpt);
-      };
-      var w = this.width,
+          vpt = this.getViewportTransform(),
+          f = function (p) {
+            return fabric.util.transformPoint(p, vpt);
+          },
+          w = this.width,
           h = this.height,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
+
       if (vLine) {
         w = strokeWidth;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth;
       }
       if (strokeW) {
@@ -12111,11 +12145,12 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
           mt  = f(_mt),
           mr  = f(new fabric.Point(_tr.x - (wh.y/2 * sinTh), _tr.y + (wh.y/2 * cosTh))),
           mb  = f(new fabric.Point(_bl.x + (wh.x/2 * cosTh), _bl.y + (wh.x/2 * sinTh))),
-          mtr = f(new fabric.Point(_mt.x, _mt.y));
+          mtr = f(new fabric.Point(_mt.x, _mt.y)),
 
-      // padding
-      var padX = Math.cos(_angle + theta) * this.padding * Math.sqrt(2),
+          // padding
+          padX = Math.cos(_angle + theta) * this.padding * Math.sqrt(2),
           padY = Math.sin(_angle + theta) * this.padding * Math.sqrt(2);
+
       tl = tl.add(new fabric.Point(-padX, -padY));
       tr = tr.add(new fabric.Point(padY, -padX));
       br = br.add(new fabric.Point(padX, padY));
@@ -12671,14 +12706,15 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       var w = this.getWidth(),
           h = this.getHeight(),
           strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
       if (vLine) {
         w = strokeWidth / scaleX;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth / scaleY;
       }
       if (strokeW) {
@@ -12738,14 +12774,16 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
           strokeWidth = this.strokeWidth > 1 ? this.strokeWidth : 0,
           w = this.width,
           h = this.height,
-          capped = this.strokeLineCap === "round" || this.strokeLineCap === "square",
-          vLine = this.type === "line" && this.width === 1,
-          hLine = this.type === "line" && this.height === 1,
-          strokeW = (capped && hLine) || this.type !== "line",
-          strokeH = (capped && vLine) || this.type !== "line";
+          capped = this.strokeLineCap === 'round' || this.strokeLineCap === 'square',
+          vLine = this.type === 'line' && this.width === 1,
+          hLine = this.type === 'line' && this.height === 1,
+          strokeW = (capped && hLine) || this.type !== 'line',
+          strokeH = (capped && vLine) || this.type !== 'line';
+
       if (vLine) {
         w = strokeWidth;
-      } else if (hLine) {
+      }
+      else if (hLine) {
         h = strokeWidth;
       }
       if (strokeW) {
@@ -12756,7 +12794,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       }
       w *= this.scaleX;
       h *= this.scaleY;
- 
+
       var wh = fabric.util.transformPoint(new fabric.Point(w, h), vpt, true),
           width = wh.x,
           height = wh.y,
@@ -13562,7 +13600,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _render: function(ctx, noTransform) {
       ctx.beginPath();
@@ -13641,8 +13680,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       parsedAttributes.top = 0;
     }
     if (!('transformMatrix' in parsedAttributes)) {
-      parsedAttributes.left -= (options.width / 2);
-      parsedAttributes.top -= (options.height / 2);
+      parsedAttributes.left -= options.width ? (options.width / 2) : 0;
+      parsedAttributes.top -= options.height ? (options.height / 2) : 0;
     }
 
     var obj = new fabric.Circle(extend(parsedAttributes, options));
@@ -13718,7 +13757,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} Context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _render: function(ctx) {
       var widthBy2 = this.width / 2,
@@ -13736,7 +13775,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} Context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
       var widthBy2 = this.width / 2,
@@ -13791,7 +13830,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns fabric.Triangle instance from an object representation
    * @static
    * @memberOf fabric.Triangle
-   * @param object {Object} object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {Object} instance of Canvas.Triangle
    */
   fabric.Triangle.fromObject = function(object) {
@@ -13897,8 +13936,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * Renders this instance on a given context
-     * @param ctx {CanvasRenderingContext2D} context to render on
-     * @param noTransform {Boolean} context is not transformed when set to true
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     render: function(ctx, noTransform) {
       // do not use `get` for perf. reasons
@@ -13908,7 +13947,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx context to render on
+     * @param {Boolean} [noTransform] When true, context is not transformed
      */
     _render: function(ctx, noTransform) {
       ctx.beginPath();
@@ -13959,8 +13999,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       parsedAttributes.top = 0;
     }
     if (!('transformMatrix' in parsedAttributes)) {
-      parsedAttributes.left -= (options.width / 2);
-      parsedAttributes.top -= (options.height / 2);
+      parsedAttributes.left -= options.width ? (options.width / 2) : 0;
+      parsedAttributes.top -= options.height ? (options.height / 2) : 0;
     }
     var ellipse = new fabric.Ellipse(extend(parsedAttributes, options));
 
@@ -14085,7 +14125,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _render: function(ctx) {
 
@@ -14141,7 +14181,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param ctx {CanvasRenderingContext2D} context to render on
+     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
       var x = -this.width / 2,
@@ -14267,7 +14307,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns {@link fabric.Rect} instance from an object representation
    * @static
    * @memberOf fabric.Rect
-   * @param object {Object} object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {Object} instance of fabric.Rect
    */
   fabric.Rect.fromObject = function(object) {
@@ -14458,7 +14498,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns fabric.Polyline instance from an object representation
    * @static
    * @memberOf fabric.Polyline
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Polyline} Instance of fabric.Polyline
    */
   fabric.Polyline.fromObject = function(object) {
@@ -14668,7 +14708,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * Returns fabric.Polygon instance from an object representation
    * @static
    * @memberOf fabric.Polygon
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Polygon} Instance of fabric.Polygon
    */
   fabric.Polygon.fromObject = function(object) {
@@ -14822,7 +14862,8 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
 
     /**
      * @private
-     * @param {Boolean} positionSet When false, path offset is returned otherwise 0
+     * @param {Number} origLeft Original left position
+     * @param {Number} origTop  Original top position
      */
     _calculatePathOffset: function (origLeft, origTop) {
       return {
@@ -15503,7 +15544,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
       ctx.save();
 
       var m = this.transformMatrix;
-      
+
       if (m) {
         ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);
       }
@@ -16192,7 +16233,7 @@ fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prot
    * @static
    * @memberOf fabric.Group
    * @param {Object} object Object to create a group from
-   * @param {Object} [options] Options object
+   * @param {Function} [callback] Callback to invoke when an group instance is created
    * @return {fabric.Group} An instance of fabric.Group
    */
   fabric.Group.fromObject = function(object, callback) {
@@ -18535,7 +18576,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
      * @private
      * @param {String} method Method name ("fillText" or "strokeText")
      * @param {CanvasRenderingContext2D} ctx Context to render on
-     * @param {String} line Chars to render
+     * @param {String} chars Chars to render
      * @param {Number} left Left position of text
      * @param {Number} top Top position of text
      */
@@ -19158,7 +19199,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
    * Returns fabric.Text instance from an object representation
    * @static
    * @memberOf fabric.Text
-   * @param object {Object} object Object to create an instance from
+   * @param {Object} object Object to create an instance from
    * @return {fabric.Text} Instance of fabric.Text
    */
   fabric.Text.fromObject = function(object) {
@@ -19807,7 +19848,9 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
      * @private
      * @param {String} method
      * @param {CanvasRenderingContext2D} ctx Context to render on
-     * @param {String} line
+     * @param {String} line Content of the line
+     * @param {Number} left Left coordinate
+     * @param {Number} top Top coordinate
      */
     _renderCharsFast: function(method, ctx, line, left, top) {
       this.skipTextAlign = false;
@@ -19822,7 +19865,14 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * @private
+     * @param {String} method
      * @param {CanvasRenderingContext2D} ctx Context to render on
+     * @param {Number} lineIndex
+     * @param {Number} i
+     * @param {String} _char
+     * @param {Number} left Left coordinate
+     * @param {Number} top Top coordinate
+     * @param {Number} lineHeight Height of the line
      */
     _renderChar: function(method, ctx, lineIndex, i, _char, left, top, lineHeight) {
       var decl, charWidth, charHeight;
@@ -20241,6 +20291,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
     /**
      * @private
      * @param {CanvasRenderingContext2D} ctx Context to render on
+     * @param {Array} textLines Array of all text lines
      */
     _getTextHeight: function(ctx, textLines) {
       var height = 0;
@@ -20252,7 +20303,6 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * @private
-     * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _getTopOffset: function() {
       var topOffset = fabric.Text.prototype._getTopOffset.call(this);
@@ -20532,7 +20582,8 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * Find new selection index representing start of current line according to current selection index
-     * @param {Number} current selection index
+     * @param {Number} startFrom Current selection index
+     * @return {Number} New selection index
      */
     findLineBoundaryLeft: function(startFrom) {
       var offset = 0, index = startFrom - 1;
@@ -20547,7 +20598,8 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
 
     /**
      * Find new selection index representing end of current line according to current selection index
-     * @param {Number} current selection index
+     * @param {Number} startFrom Current selection index
+     * @return {Number} New selection index
      */
     findLineBoundaryRight: function(startFrom) {
       var offset = 0, index = startFrom;
@@ -20580,6 +20632,7 @@ fabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Imag
      * Finds index corresponding to beginning or end of a word
      * @param {Number} selectionStart Index of a character
      * @param {Number} direction: 1 or -1
+     * @return {Number} Index of the beginning or end of a word
      */
     searchWordBoundary: function(selectionStart, direction) {
       var index = this._reSpace.test(this.text.charAt(selectionStart)) ? selectionStart - 1 : selectionStart,
@@ -21161,7 +21214,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Changes cursor location in a text depending on passed pointer (x/y) object
-   * @param {Object} pointer Pointer object with x and y numeric properties
+   * @param {Event} e Event object
    */
   setCursorByClick: function(e) {
     var newSelectionStart = this.getSelectionStartFromPointer(e);
@@ -21184,7 +21237,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
   /**
    * @private
    * @param {Event} e Event object
-   * @param {Object} Object with x/y corresponding to local offset (according to object rotation)
+   * @return {Object} Coordinates of a pointer (x, y)
    */
   _getLocalRotatedPointer: function(e) {
     var pointer = this.canvas.getPointer(e),
@@ -21204,7 +21257,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @return {Number} Index of a character
    */
   getSelectionStartFromPointer: function(e) {
-
     var mouseOffset = this._getLocalRotatedPointer(e),
         textLines = this.text.split(this._reNewline),
         prevWidth = 0,
@@ -21396,7 +21448,8 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
     // Check for backward compatibility with old browsers
     if (clipboardData) {
       copiedText = clipboardData.getData('text');
-    } else {
+    }
+    else {
       copiedText = this.copiedText;
     }
 
@@ -21421,6 +21474,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
   /**
    * @private
    * @param {Event} e Event object
+   * @return {Object} Clipboard data object
    */
   _getClipboardData: function(e) {
     return e && (e.clipboardData || fabric.window.clipboardData);
@@ -21442,10 +21496,11 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Gets start offset of a selection
+   * @param {Event} e Event object
+   * @param {Boolean} isRight
    * @return {Number}
    */
   getDownCursorOffset: function(e, isRight) {
-
     var selectionProp = isRight ? this.selectionEnd : this.selectionStart,
         textLines = this.text.split(this._reNewline),
         _char,
@@ -21488,7 +21543,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @private
    */
   _getIndexOnNextLine: function(cursorLocation, textOnNextLine, widthOfCharsOnSameLineBeforeCursor, textLines) {
-
     var lineIndex = cursorLocation.lineIndex + 1,
         widthOfNextLine = this._getWidthOfLine(this.ctx, lineIndex, textLines),
         lineLeftOffset = this._getLineLeftOffset(widthOfNextLine),
@@ -21531,7 +21585,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Event} e Event object
    */
   moveCursorDown: function(e) {
-
     this.abortCursorAnimation();
     this._currentCursorOpacity = 1;
 
@@ -21552,7 +21605,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Number} offset
    */
   moveCursorDownWithoutShift: function(offset) {
-
     this._selectionDirection = 'right';
     this.selectionStart += offset;
 
@@ -21567,7 +21619,6 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
    * @param {Number} offset
    */
   moveCursorDownWithShift: function(offset) {
-
     if (this._selectionDirection === 'left' && (this.selectionStart !== this.selectionEnd)) {
       this.selectionStart += offset;
       this._selectionDirection = 'left';
@@ -21583,8 +21634,12 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
     }
   },
 
+  /**
+   * @param {Event} e Event object
+   * @param {Boolean} isRight
+   * @return {Number}
+   */
   getUpCursorOffset: function(e, isRight) {
-
     var selectionProp = isRight ? this.selectionEnd : this.selectionStart,
         cursorLocation = this.get2DCursorLocation(selectionProp);
 
@@ -21850,7 +21905,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Moves cursor right without keeping selection
-   * @param {Event} e
+   * @param {Event} e Event object
    */
   moveCursorRightWithoutShift: function(e) {
     this._selectionDirection = 'right';
@@ -21870,6 +21925,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * Inserts a character where cursor is (replacing selection if one exists)
+   * @param {Event} e Event object
    */
   removeChars: function(e) {
     if (this.selectionStart === this.selectionEnd) {
@@ -21896,6 +21952,7 @@ fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.protot
 
   /**
    * @private
+   * @param {Event} e Event object
    */
   _removeCharsNearCursor: function(e) {
     if (this.selectionStart !== 0) {
diff --git a/src/parser.js b/src/parser.js
index bc3d6d5a738..3b45a6142b2 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -54,7 +54,8 @@
   }
 
   function normalizeValue(attr, value, parentAttributes) {
-    var isArray = Object.prototype.toString.call(value) === '[object Array]';
+    var isArray = Object.prototype.toString.call(value) === '[object Array]',
+        parsed;
 
     if ((attr === 'fill' || attr === 'stroke') && value === 'none') {
       value = '';
@@ -63,7 +64,9 @@
       value = (value === 'evenodd') ? 'destination-over' : value;
     }
     else if (attr === 'strokeDashArray') {
-      value = value.replace(/,/g, ' ').split(/\s+/);
+      value = value.replace(/,/g, ' ').split(/\s+/).map(function(n) {
+        return parseInt(n);
+      });
     }
     else if (attr === 'transformMatrix') {
       if (parentAttributes && parentAttributes.transformMatrix) {
@@ -83,9 +86,9 @@
     }
     else if (attr === 'originX' /* text-anchor */) {
       value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';
-    } else {
-      // TODO: need to normalize em, %, etc. to px (!)
-      var parsed = isArray ? value.map(parseUnit) : parseUnit(value);
+    }
+    else {
+      parsed = isArray ? value.map(parseUnit) : parseUnit(value);
     }
 
     return (!isArray && isNaN(parsed) ? value : parsed);
@@ -367,7 +370,7 @@
    * @private
    */
   function parseUseDirectives(doc) {
-    var nodelist = doc.querySelectorAll('use');
+    var nodelist = doc.getElementsByTagName('use');
     for (var i = 0, len = nodelist.length; i < len; i++) {
       var el = nodelist[i],
           xlink = el.getAttribute('xlink:href').substr(1),
diff --git a/src/shapes/circle.class.js b/src/shapes/circle.class.js
index 36ca968032b..a03bfc22c70 100644
--- a/src/shapes/circle.class.js
+++ b/src/shapes/circle.class.js
@@ -176,8 +176,8 @@
       parsedAttributes.top = 0;
     }
     if (!('transformMatrix' in parsedAttributes)) {
-      parsedAttributes.left -= (options.width / 2);
-      parsedAttributes.top -= (options.height / 2);
+      parsedAttributes.left -= options.width ? (options.width / 2) : 0;
+      parsedAttributes.top -= options.height ? (options.height / 2) : 0;
     }
 
     var obj = new fabric.Circle(extend(parsedAttributes, options));
diff --git a/src/shapes/ellipse.class.js b/src/shapes/ellipse.class.js
index b556d97329a..931168154db 100644
--- a/src/shapes/ellipse.class.js
+++ b/src/shapes/ellipse.class.js
@@ -157,8 +157,8 @@
       parsedAttributes.top = 0;
     }
     if (!('transformMatrix' in parsedAttributes)) {
-      parsedAttributes.left -= (options.width / 2);
-      parsedAttributes.top -= (options.height / 2);
+      parsedAttributes.left -= options.width ? (options.width / 2) : 0;
+      parsedAttributes.top -= options.height ? (options.height / 2) : 0;
     }
     var ellipse = new fabric.Ellipse(extend(parsedAttributes, options));
 
diff --git a/src/util/misc.js b/src/util/misc.js
index 82ed6699743..7f51fdbcf18 100644
--- a/src/util/misc.js
+++ b/src/util/misc.js
@@ -141,6 +141,7 @@
     parseUnit: function(value) {
       var unit = /\D{0,2}$/.exec(value),
           number = parseFloat(value);
+
       switch (unit[0]) {
         case 'mm':
           return number * fabric.DPI / 25.4;
diff --git a/test/unit/parser.js b/test/unit/parser.js
index fa971613658..0bc86b35794 100644
--- a/test/unit/parser.js
+++ b/test/unit/parser.js
@@ -126,10 +126,11 @@
     var element = fabric.document.createElement('path');
     element.setAttribute('style', 'left:10px;top:22.3em;width:103.45pt;height:20%;');
 
+    // TODO: looks like this still fails with % and em values
     var expectedObject = {
       'left':   10,
       'top':    22.3,
-      'width':  103.45,
+      'width':  137.93333333333334,
       'height': 20
     };
     deepEqual(fabric.parseStyleAttribute(element), expectedObject);
diff --git a/test/unit/text.js b/test/unit/text.js
index 73b35dfb128..ac43cfb7986 100644
--- a/test/unit/text.js
+++ b/test/unit/text.js
@@ -6,13 +6,15 @@
     return new fabric.Text('x');
   }
 
+  var CHAR_WIDTH = 19;
+
   var REFERENCE_TEXT_OBJECT = {
     'type':                'text',
     'originX':             'left',
     'originY':             'top',
     'left':                0,
     'top':                 0,
-    'width':               20,
+    'width':               CHAR_WIDTH,
     'height':              52,
     'fill':                'rgb(0,0,0)',
     'stroke':              null,
@@ -30,6 +32,7 @@
     'shadow':              null,
     'visible':             true,
     'clipTo':              null,
+    'backgroundColor':     '',
     'text':                'x',
     'fontSize':            40,
     'fontWeight':          'normal',
@@ -39,12 +42,11 @@
     'textDecoration':      '',
     'textAlign':           'left',
     'path':                null,
-    'backgroundColor':     '',
     'textBackgroundColor': '',
     'useNative':           true
   };
 
-  var TEXT_SVG = '<g transform="translate(10 26)"><text font-family="Times New Roman" font-size="40" font-weight="normal" style="stroke: none; stroke-width: 1; stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; fill: rgb(0,0,0); opacity: 1;" transform="translate(-10 39)"><tspan x="0" y="-26" fill="rgb(0,0,0)">x</tspan></text></g>';
+  var TEXT_SVG = '<g transform="translate(9.5 26)"><text font-family="Times New Roman" font-size="40" font-weight="normal" style="stroke: none; stroke-width: 1; stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; fill: rgb(0,0,0); opacity: 1;" transform="translate(-9.5 39)"><tspan x="0" y="-26" fill="rgb(0,0,0)">x</tspan></text></g>';
 
   test('constructor', function() {
     ok(fabric.Text);
@@ -148,12 +150,12 @@
     ok(text instanceof fabric.Text);
 
     // temp workaround for text objects not obtaining width under node
-    // text.width = 20;
+    // text.width = CHAR_WIDTH;
 
     var expectedObject = fabric.util.object.extend(fabric.util.object.clone(REFERENCE_TEXT_OBJECT), {
-      left: 4,
+      left: 3.5,
       top: -10.4,
-      width: 8,
+      width: 7,
       height: 20.8,
       fontSize: 16,
       originX: 'center'
@@ -185,7 +187,7 @@
 
     var textWithAttrs = fabric.Text.fromElement(elTextWithAttrs);
     // temp workaround for text objects not obtaining width under node
-    textWithAttrs.width = 20;
+    textWithAttrs.width = CHAR_WIDTH;
 
     ok(textWithAttrs instanceof fabric.Text);
 
@@ -193,7 +195,7 @@
       /* left varies slightly due to node-canvas rendering */
       left:             fabric.util.toFixed(textWithAttrs.left + '', 2),
       top:              -59.95,
-      width:            20,
+      width:            CHAR_WIDTH,
       height:           159.9,
       fill:             'rgb(255,255,255)',
       opacity:          0.45,
@@ -220,10 +222,10 @@
 
   test('dimensions after text change', function() {
     var text = new fabric.Text('x');
-    equal(text.width, 20);
+    equal(text.width, CHAR_WIDTH);
 
     text.setText('xx');
-    equal(text.width, 40);
+    equal(text.width, CHAR_WIDTH * 2);
   });
 
   test('setting fontFamily', function() {
@@ -241,13 +243,13 @@
     var text = new fabric.Text('x');
 
     // temp workaround for text objects not obtaining width under node
-    text.width = 20;
+    text.width = CHAR_WIDTH;
 
     equal(text.toSVG(), TEXT_SVG);
 
     text.setFontFamily('"Arial Black", Arial');
     // temp workaround for text objects not obtaining width under node
-    text.width = 20;
+    text.width = CHAR_WIDTH;
 
     equal(text.toSVG(), TEXT_SVG.replace('font-family="Times New Roman"', 'font-family="\'Arial Black\', Arial"'));
   });

From 3e294fee9479ee14b21552d12ed784831b829631 Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Fri, 18 Jul 2014 14:27:25 +0200
Subject: [PATCH 19/21] Try fixing char width for travis

---
 test/unit/text.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/text.js b/test/unit/text.js
index ac43cfb7986..440342cbc98 100644
--- a/test/unit/text.js
+++ b/test/unit/text.js
@@ -6,7 +6,7 @@
     return new fabric.Text('x');
   }
 
-  var CHAR_WIDTH = 19;
+  var CHAR_WIDTH = 20;
 
   var REFERENCE_TEXT_OBJECT = {
     'type':                'text',

From 7de2aedf7c82c622266c140c5cf3b81476ef18cb Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Fri, 18 Jul 2014 14:33:50 +0200
Subject: [PATCH 20/21] Try fixing char width for travis again

---
 test/unit/text.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/unit/text.js b/test/unit/text.js
index 440342cbc98..7548d343a3d 100644
--- a/test/unit/text.js
+++ b/test/unit/text.js
@@ -46,7 +46,7 @@
     'useNative':           true
   };
 
-  var TEXT_SVG = '<g transform="translate(9.5 26)"><text font-family="Times New Roman" font-size="40" font-weight="normal" style="stroke: none; stroke-width: 1; stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; fill: rgb(0,0,0); opacity: 1;" transform="translate(-9.5 39)"><tspan x="0" y="-26" fill="rgb(0,0,0)">x</tspan></text></g>';
+  var TEXT_SVG = '<g transform="translate(10 26)"><text font-family="Times New Roman" font-size="40" font-weight="normal" style="stroke: none; stroke-width: 1; stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; fill: rgb(0,0,0); opacity: 1;" transform="translate(10 39)"><tspan x="0" y="-26" fill="rgb(0,0,0)">x</tspan></text></g>';
 
   test('constructor', function() {
     ok(fabric.Text);
@@ -153,7 +153,7 @@
     // text.width = CHAR_WIDTH;
 
     var expectedObject = fabric.util.object.extend(fabric.util.object.clone(REFERENCE_TEXT_OBJECT), {
-      left: 3.5,
+      left: 4,
       top: -10.4,
       width: 7,
       height: 20.8,

From 17bf29616d30f21f654f19b0b5382ef0844d235b Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Fri, 18 Jul 2014 14:43:54 +0200
Subject: [PATCH 21/21] Try fixing char width for travis again

---
 test/unit/itext.js | 2 +-
 test/unit/text.js  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/unit/itext.js b/test/unit/itext.js
index e7361dda984..d7b306eadda 100644
--- a/test/unit/itext.js
+++ b/test/unit/itext.js
@@ -8,7 +8,7 @@
     'originY':              'top',
     'left':                 0,
     'top':                  0,
-    'width':                19,
+    'width':                20,
     'height':               52,
     'fill':                 'rgb(0,0,0)',
     'stroke':               null,
diff --git a/test/unit/text.js b/test/unit/text.js
index 7548d343a3d..467975e73e2 100644
--- a/test/unit/text.js
+++ b/test/unit/text.js
@@ -46,7 +46,7 @@
     'useNative':           true
   };
 
-  var TEXT_SVG = '<g transform="translate(10 26)"><text font-family="Times New Roman" font-size="40" font-weight="normal" style="stroke: none; stroke-width: 1; stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; fill: rgb(0,0,0); opacity: 1;" transform="translate(10 39)"><tspan x="0" y="-26" fill="rgb(0,0,0)">x</tspan></text></g>';
+  var TEXT_SVG = '<g transform="translate(10 26)"><text font-family="Times New Roman" font-size="40" font-weight="normal" style="stroke: none; stroke-width: 1; stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; fill: rgb(0,0,0); opacity: 1;" transform="translate(-10 39)"><tspan x="0" y="-26" fill="rgb(0,0,0)">x</tspan></text></g>';
 
   test('constructor', function() {
     ok(fabric.Text);
@@ -155,7 +155,7 @@
     var expectedObject = fabric.util.object.extend(fabric.util.object.clone(REFERENCE_TEXT_OBJECT), {
       left: 4,
       top: -10.4,
-      width: 7,
+      width: 8,
       height: 20.8,
       fontSize: 16,
       originX: 'center'