Add rotateContextAt, resetCanvas, resetTransforms and clearWithTransf…

…orms

index.js

@@ -23,6 +23,7 @@ var methodNames = [
   'rotate',
   'save',
   'scale',
+  'setTransform',
   'stroke',
   'strokeRect',
   'strokeText',
@@ -79,6 +80,31 @@ Leinwand.prototype.circle = function cirlce(x, y, r) {
   return this;
 };
 
+Leinwand.prototype.rotateContextAt = function rotateContextAt(x, y, r) {
+  this.translate(x, y);
+	this.rotate(r);
+	this.translate(-1 * x, -1 * y);
+  return this;
+};
+
+Leinwand.prototype.resetCanvas = function resetCanvas(){
+  this._canvas.width = this._canvas.width;
+  return this;
+};
+
+Leinwand.prototype.resetTransforms = function resetTransforms() {
+  this.setTransform(1, 0, 0, 1, 0, 0);
+  return this;
+};
+
+Leinwand.prototype.clearWithTransforms = function clearWithTransforms() {
+  this.save();
+  this.resetTransforms();
+  this.clear();
+  this.restore();
+  return this;
+};
+
 //Getters
 Leinwand.prototype.getContext = function getContext() {
   return this._ctx;

package.json

@@ -19,11 +19,11 @@
   "author": "Till Arnold",
   "license": "MIT",
   "devDependencies": {
-    "jshint": "^2.8.0",
-    "tape": "^4.2.0",
-    "istanbul": "~0.3.20",
+    "jshint": "^2.9.1-rc1",
+    "tape": "^4.2.2",
+    "istanbul": "~0.4.1",
     "coveralls": "~2.11.4",
     "beefy": "^2.1.5",
-    "watchify": "^3.4.0"
+    "watchify": "^3.6.1"
   }
 }

test/beefy.js

@@ -24,4 +24,7 @@ l
   .fillStyle('blue')
   .circle(50,50,40)
   .fill()
-  .stroke();
+  .stroke()
+  .fillRect(200,200,100,100)
+  .rotateContextAt(250,250,Math.PI/4)
+  .fillRect(200,200,100,100);