tests: Add avm2/edittext_line_metrics test

This test verifies the behavior of TextField.getLineMetrics().

tests/tests/swfs/avm2/edittext_line_metrics/Test.as

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+package {
+import flash.display.Sprite;
+import flash.text.TextField;
+import flash.text.TextFormat;
+import flash.text.TextLineMetrics;
+
+[SWF(width="300", height="300")]
+public class Test extends Sprite {
+    [Embed(source="NotoSans.ttf", fontName="Noto Sans", embedAsCFF="false", unicodeRange="U+0020-U+007E")]
+    private var notoSans:Class;
+
+    [Embed(source="TestFont.ttf", fontName="TestFont", embedAsCFF="false", unicodeRange="U+0061-U+0064")]
+    private var testFont:Class;
+
+    [Embed(source="TestFontDefault.ttf", fontName="TestFontDefault", embedAsCFF="false", unicodeRange="U+0061-U+0064")]
+    private var testFontDefault:Class;
+
+    private var text:TextField;
+
+    public function Test() {
+        stage.scaleMode = "noScale";
+        text = new TextField();
+        text.border = true;
+        text.x = 10;
+        text.y = 10;
+        text.width = 280;
+        text.height = 280;
+        text.multiline = true;
+        text.embedFonts = true;
+        text.wordWrap = true;
+        var tf = new TextFormat();
+        tf.font = "TestFontDefault";
+        text.defaultTextFormat = tf;
+        addChild(text);
+
+        text.htmlText = "";
+        text.htmlText += "<font face='TestFont'>acbd</font>\n";
+        text.htmlText += "<font face='Noto Sans'>acbd</font>\n";
+        text.htmlText += "\n";
+        text.htmlText += "<font face='TestFont'>acbd</font><font face='Noto Sans'>mixed fonts</font>\n";
+        text.htmlText += "<font face='Noto Sans'><font size='+2'>mixed</font> <font size='-2'>sizes</font></font>\n";
+        text.htmlText += "<textformat leading='5'><font face='TestFont'>acbd</font><font face='Noto Sans'>leading</font></textformat>\n";
+        text.htmlText += "<textformat leading='4'><font face='Noto Sans'>line so long that it will need to break at some point</font> <font face='TestFont'>acbd</font></textformat>\n";
+        // TODO add cases for alignment (when it's fixed)
+
+        for (var i = -1; i <= 9; ++i) {
+            trace("text.getLineMetrics(" + i + ") = " + testMetrics(i));
+        }
+    }
+
+    private function testMetrics(i:int):String {
+        try {
+            return metricsToStr(text.getLineMetrics(i));
+        } catch(e) {
+            return "" + e;
+        }
+        return "";
+    }
+
+    private function metricsToStr(metrics:TextLineMetrics):String {
+        return "ascent=" + metrics.ascent + ", descent=" + metrics.descent + ", leading=" + metrics.leading + ", width=" + metrics.width + ", height=" + metrics.height + ", x=" + metrics.x;
+    }
+}
+}

tests/tests/swfs/avm2/edittext_line_metrics/TestFont.sfd

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+SplineFontDB: 3.2
+FontName: TestFont
+FullName: TestFont
+FamilyName: TestFont
+Weight: Regular
+Copyright: Copyright (c) 2024, Kamil Jarosz
+UComments: "2024-7-24: Created with FontForge (http://fontforge.org)"
+Version: 001.000
+ItalicAngle: 0
+UnderlinePosition: -76.6667
+UnderlineWidth: 38.3333
+Ascent: 500
+Descent: 500
+InvalidEm: 0
+LayerCount: 2
+Layer: 0 0 "Back" 1
+Layer: 1 0 "Fore" 0
+XUID: [1021 253 198287149 6396829]
+StyleMap: 0x0000
+FSType: 0
+OS2Version: 0
+OS2_WeightWidthSlopeOnly: 0
+OS2_UseTypoMetrics: 1
+CreationTime: 1721856925
+ModificationTime: 1729718098
+PfmFamily: 17
+TTFWeight: 400
+TTFWidth: 5
+LineGap: 100
+VLineGap: 0
+OS2TypoAscent: 0
+OS2TypoAOffset: 1
+OS2TypoDescent: 0
+OS2TypoDOffset: 1
+OS2TypoLinegap: 100
+OS2WinAscent: 0
+OS2WinAOffset: 1
+OS2WinDescent: 0
+OS2WinDOffset: 1
+HheadAscent: 0
+HheadAOffset: 1
+HheadDescent: 0
+HheadDOffset: 1
+OS2Vendor: 'PfEd'
+MarkAttachClasses: 1
+DEI: 91125
+Encoding: ISO8859-1
+UnicodeInterp: none
+NameList: AGL For New Fonts
+DisplaySize: -48
+AntiAlias: 1
+FitToEm: 0
+WinInfo: 0 30 10
+BeginPrivate: 0
+EndPrivate
+BeginChars: 256 4
+
+StartChar: a
+Encoding: 97 97 0
+Width: 800
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 500 m 5
+ 800 500 l 5
+ 800 0 l 1
+ 0 0 l 1
+ 0 500 l 5
+EndSplineSet
+EndChar
+
+StartChar: b
+Encoding: 98 98 1
+Width: 108
+VWidth: 1083
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 500 m 5
+ 108 500 l 5
+ 108 0 l 1
+ 0 0 l 1
+ 0 500 l 5
+EndSplineSet
+EndChar
+
+StartChar: c
+Encoding: 99 99 2
+Width: 800
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 0 m 1
+ 800 0 l 1
+ 800 -500 l 5
+ 0 -500 l 5
+ 0 0 l 1
+EndSplineSet
+EndChar
+
+StartChar: d
+Encoding: 100 100 3
+Width: 100
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 0 m 1
+ 100 0 l 1
+ 100 -500 l 1
+ 0 -500 l 1
+ 0 0 l 1
+EndSplineSet
+EndChar
+EndChars
+EndSplineFont

tests/tests/swfs/avm2/edittext_line_metrics/TestFontDefault.sfd

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+SplineFontDB: 3.2
+FontName: TestFontDefault
+FullName: TestFontDefault
+FamilyName: TestFontDefault
+Weight: Regular
+Copyright: Copyright (c) 2024, Kamil Jarosz
+UComments: "2024-7-24: Created with FontForge (http://fontforge.org)"
+Version: 001.000
+ItalicAngle: 0
+UnderlinePosition: -7
+UnderlineWidth: 3
+Ascent: 20
+Descent: 80
+InvalidEm: 0
+LayerCount: 2
+Layer: 0 0 "Back" 1
+Layer: 1 0 "Fore" 0
+XUID: [1021 253 198287149 6396829]
+StyleMap: 0x0000
+FSType: 0
+OS2Version: 0
+OS2_WeightWidthSlopeOnly: 0
+OS2_UseTypoMetrics: 1
+CreationTime: 1721856925
+ModificationTime: 1729779161
+PfmFamily: 17
+TTFWeight: 400
+TTFWidth: 5
+LineGap: 10
+VLineGap: 0
+OS2TypoAscent: 0
+OS2TypoAOffset: 1
+OS2TypoDescent: 0
+OS2TypoDOffset: 1
+OS2TypoLinegap: 10
+OS2WinAscent: 0
+OS2WinAOffset: 1
+OS2WinDescent: 0
+OS2WinDOffset: 1
+HheadAscent: 0
+HheadAOffset: 1
+HheadDescent: 0
+HheadDOffset: 1
+OS2Vendor: 'PfEd'
+MarkAttachClasses: 1
+DEI: 91125
+Encoding: ISO8859-1
+UnicodeInterp: none
+NameList: AGL For New Fonts
+DisplaySize: -48
+AntiAlias: 1
+FitToEm: 0
+WinInfo: 0 30 10
+BeginPrivate: 0
+EndPrivate
+BeginChars: 256 4
+
+StartChar: a
+Encoding: 97 97 0
+Width: 80
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 20 m 5
+ 80 20 l 5
+ 80 0 l 1
+ 0 0 l 1
+ 0 20 l 5
+EndSplineSet
+EndChar
+
+StartChar: b
+Encoding: 98 98 1
+Width: 10
+VWidth: 108
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 20 m 1
+ 10 20 l 5
+ 10 0 l 5
+ 0 0 l 1
+ 0 20 l 1
+EndSplineSet
+EndChar
+
+StartChar: c
+Encoding: 99 99 2
+Width: 80
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 0 m 1
+ 80 0 l 1
+ 80 -80 l 5
+ 0 -80 l 5
+ 0 0 l 1
+EndSplineSet
+EndChar
+
+StartChar: d
+Encoding: 100 100 3
+Width: 10
+Flags: HW
+LayerCount: 2
+Fore
+SplineSet
+0 0 m 1
+ 10 0 l 1
+ 10 -80 l 5
+ 0 -80 l 5
+ 0 0 l 1
+EndSplineSet
+EndChar
+EndChars
+EndSplineFont

tests/tests/swfs/avm2/edittext_line_metrics/output.txt

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+text.getLineMetrics(-1) = RangeError: Error #2006: The supplied index is out of bounds.
+text.getLineMetrics(0) = ascent=6, descent=6, leading=0, width=21.65, height=12, x=2
+text.getLineMetrics(1) = ascent=13.45, descent=4.7, leading=0, width=27.15, height=18.15, x=2
+text.getLineMetrics(2) = ascent=2.4, descent=9.6, leading=0, width=0, height=12, x=2
+text.getLineMetrics(3) = ascent=13.45, descent=6, leading=0, width=88.15, height=19.45, x=2
+text.getLineMetrics(4) = ascent=15.7, descent=5.5, leading=0, width=65.9, height=21.2, x=2
+text.getLineMetrics(5) = ascent=13.45, descent=6, leading=5, width=63.3, height=24.45, x=2
+text.getLineMetrics(6) = ascent=13.45, descent=4.7, leading=4, width=254.8, height=22.15, x=2
+text.getLineMetrics(7) = ascent=13.45, descent=9.6, leading=4, width=51, height=27.05, x=2
+text.getLineMetrics(8) = ascent=2.4, descent=9.6, leading=0, width=0, height=12, x=2
+text.getLineMetrics(9) = RangeError: Error #2006: The supplied index is out of bounds.

tests/tests/swfs/avm2/edittext_line_metrics/test.toml

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+num_ticks = 1