зеркало из https://github.com/mozilla/pjs.git
87 строки
2.3 KiB
HTML
87 строки
2.3 KiB
HTML
<!DOCTYPE HTML>
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<title>Canvas test: 2d.line.join.round</title>
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<!-- Testing: lineJoin 'round' is rendered correctly -->
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<script src="/MochiKit/packed.js"></script>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<body>
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<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
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<script>
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function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
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var pixel = ctx.getImageData(x, y, 1, 1);
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var pr = pixel.data[0],
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pg = pixel.data[1],
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pb = pixel.data[2],
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pa = pixel.data[3];
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ok(r-d <= pr && pr <= r+d &&
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g-d <= pg && pg <= g+d &&
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b-d <= pb && pb <= b+d &&
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a-d <= pa && pa <= a+d,
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"pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d);
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}
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SimpleTest.waitForExplicitFinish();
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MochiKit.DOM.addLoadEvent(function () {
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var canvas = document.getElementById('c');
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var ctx = canvas.getContext('2d');
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ctx.fillStyle = '#0f0';
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ctx.fillRect(0, 0, 100, 50);
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var tol = 1; // tolerance to avoid antialiasing artifacts
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ctx.lineJoin = 'round';
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ctx.lineWidth = 20;
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ctx.fillStyle = '#f00';
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ctx.strokeStyle = '#0f0';
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ctx.fillRect(10, 10, 20, 20);
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ctx.fillRect(20, 20, 20, 20);
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ctx.beginPath();
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ctx.moveTo(30, 20);
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ctx.arc(30, 20, 10-tol, 0, 2*Math.PI, true);
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ctx.fill();
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ctx.beginPath();
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ctx.moveTo(10, 20);
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ctx.lineTo(30, 20);
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ctx.lineTo(30, 40);
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ctx.stroke();
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ctx.fillStyle = '#0f0';
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ctx.strokeStyle = '#f00';
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ctx.beginPath();
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ctx.moveTo(60, 20);
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ctx.lineTo(80, 20);
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ctx.lineTo(80, 40);
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ctx.stroke();
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ctx.fillRect(60, 10, 20, 20);
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ctx.fillRect(70, 20, 20, 20);
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ctx.beginPath();
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ctx.moveTo(80, 20);
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ctx.arc(80, 20, 10+tol, 0, 2*Math.PI, true);
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ctx.fill();
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isPixel(ctx, 36,14, 0,255,0,255, "36,14", "0,255,0,255", 0);
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isPixel(ctx, 36,13, 0,255,0,255, "36,13", "0,255,0,255", 0);
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isPixel(ctx, 37,13, 0,255,0,255, "37,13", "0,255,0,255", 0);
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isPixel(ctx, 38,13, 0,255,0,255, "38,13", "0,255,0,255", 0);
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isPixel(ctx, 38,12, 0,255,0,255, "38,12", "0,255,0,255", 0);
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isPixel(ctx, 86,14, 0,255,0,255, "86,14", "0,255,0,255", 0);
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isPixel(ctx, 86,13, 0,255,0,255, "86,13", "0,255,0,255", 0);
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isPixel(ctx, 87,13, 0,255,0,255, "87,13", "0,255,0,255", 0);
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isPixel(ctx, 88,13, 0,255,0,255, "88,13", "0,255,0,255", 0);
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isPixel(ctx, 88,12, 0,255,0,255, "88,12", "0,255,0,255", 0);
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SimpleTest.finish();
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});
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</script>
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