89 lines
3 KiB
HTML
89 lines
3 KiB
HTML
<!DOCTYPE html>
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<html>
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<meta charset=utf-8>
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<title>COLRv1 font test: compositing operators</title>
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<style>
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.ref { margin: 10px; padding: 10px; line-height: 0; font-size: 0; }
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span { display: inline-block; width: 100px; height: 100px; position: relative; }
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</style>
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<p>Some glyphs using PAINT_COMPOSITE:</p>
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<!-- using blocks to imitate the composited layers in CAhem.ttf -->
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<div class="ref">
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<span class=g>
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<div style="background: red; width: 70px; height: 70px; position: absolute; top: 0px; left: 0px;"></div>
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<div style="background: blue; width: 70px; height: 70px; position: absolute; bottom: 0px; right: 0px;"></div>
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</span>
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<span class=h>
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<div style="background: blue; width: 70px; height: 70px; position: absolute; bottom: 0px; right: 0px;"></div>
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<div style="background: red; width: 40px; height: 40px; position: absolute; top: 30px; left: 30px;"></div>
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</span>
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<span class=i>
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<div style="background: blue; width: 70px; height: 70px; position: absolute; bottom: 0px; right: 0px;"></div>
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<div style="background: white; width: 40px; height: 40px; position: absolute; top: 30px; left: 30px;"></div>
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</span>
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<span class=j>
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<div style="background: red; width: 40px; height: 40px; position: absolute; top: 30px; left: 30px;"></div>
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</span>
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<span class=k>
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<div style="background: red; width: 70px; height: 70px; position: absolute; top: 0px; left: 0px;"></div>
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<div style="background: blue; width: 70px; height: 70px; position: absolute; bottom: 0px; right: 0px;"></div>
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<div style="background: black; width: 40px; height: 40px; position: absolute; top: 30px; left: 30px;"></div>
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</span>
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<span class=l>
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<div style="background: red; width: 70px; height: 70px; position: absolute; top: 0px; left: 0px;"></div>
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<div style="background: blue; width: 70px; height: 70px; position: absolute; bottom: 0px; right: 0px;"></div>
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<div style="background: magenta; width: 40px; height: 40px; position: absolute; top: 30px; left: 30px;"></div>
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</span>
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</div>
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<p>And painting them to a canvas element:</p>
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<canvas id=c width=600 height=100></canvas>
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<script>
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ctx = c.getContext("2d");
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// glyph "g"
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ctx.fillStyle = "red";
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ctx.fillRect(0, 0, 70, 70);
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ctx.fillStyle = "blue";
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ctx.fillRect(30, 30, 70, 70);
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ctx.translate(100, 0);
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// glyph "h"
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ctx.fillStyle = "blue";
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ctx.fillRect(30, 30, 70, 70);
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ctx.fillStyle = "red";
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ctx.fillRect(30, 30, 40, 40);
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ctx.translate(100, 0);
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// glyph "i"
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ctx.fillStyle = "blue";
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ctx.fillRect(30, 30, 70, 70);
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ctx.fillStyle = "white";
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ctx.fillRect(30, 30, 40, 40);
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ctx.translate(100, 0);
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// glyph "j"
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ctx.fillStyle = "red";
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ctx.fillRect(30, 30, 40, 40);
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ctx.translate(100, 0);
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// glyph "k"
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ctx.fillStyle = "red";
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ctx.fillRect(0, 0, 70, 70);
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ctx.fillStyle = "blue";
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ctx.fillRect(30, 30, 70, 70);
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ctx.fillStyle = "black";
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ctx.fillRect(30, 30, 40, 40);
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ctx.translate(100, 0);
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// glyph "l"
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ctx.fillStyle = "red";
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ctx.fillRect(0, 0, 70, 70);
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ctx.fillStyle = "blue";
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ctx.fillRect(30, 30, 70, 70);
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ctx.fillStyle = "magenta";
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ctx.fillRect(30, 30, 40, 40);
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ctx.translate(100, 0);
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</script>
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