content/canvas/test/test_2d.fillText.gradient.html@6474c204b198 (annotated)
content/canvas/test/test_2d.fillText.gradient.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | <!DOCTYPE HTML> |
| michael@0 | 2 | <title>Canvas test: 2d.composite.canvas.xor</title> |
| michael@0 | 3 | <script src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 4 | <link rel="stylesheet" href="/tests/SimpleTest/test.css"> |
| michael@0 | 5 | <body> |
| michael@0 | 6 | <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| michael@0 | 7 | <script> |
| michael@0 | 8 | function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { |
| michael@0 | 9 | var pixel = ctx.getImageData(x, y, 1, 1); |
| michael@0 | 10 | var pr = pixel.data[0], |
| michael@0 | 11 | pg = pixel.data[1], |
| michael@0 | 12 | pb = pixel.data[2], |
| michael@0 | 13 | pa = pixel.data[3]; |
| michael@0 | 14 | ok(r-d <= pr && pr <= r+d && |
| michael@0 | 15 | g-d <= pg && pg <= g+d && |
| michael@0 | 16 | b-d <= pb && pb <= b+d && |
| michael@0 | 17 | a-d <= pa && pa <= a+d, |
| michael@0 | 18 | "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); |
| michael@0 | 19 | } |
| michael@0 | 20 | |
| michael@0 | 21 | SimpleTest.waitForExplicitFinish(); |
| michael@0 | 22 | addLoadEvent(function () { |
| michael@0 | 23 | |
| michael@0 | 24 | var canvas = document.getElementById('c'); |
| michael@0 | 25 | var ctx = canvas.getContext('2d'); |
| michael@0 | 26 | var text = "I"; |
| michael@0 | 27 | var colorTop = 'rgba(255,0,0,1)'; |
| michael@0 | 28 | var colorBottom = 'rgba(0,255,0,1)'; |
| michael@0 | 29 | var inset = 10; |
| michael@0 | 30 | var grad = ctx.createLinearGradient(inset, inset, inset, inset + 30); |
| michael@0 | 31 | |
| michael@0 | 32 | // add color stops |
| michael@0 | 33 | grad.addColorStop(0, colorTop); |
| michael@0 | 34 | grad.addColorStop(1, colorBottom); |
| michael@0 | 35 | |
| michael@0 | 36 | ctx.fillStyle = grad; |
| michael@0 | 37 | ctx.textBaseline = 'top'; |
| michael@0 | 38 | ctx.font = '110px sans-serif' |
| michael@0 | 39 | ctx.fillText(text, -10, -20); |
| michael@0 | 40 | ctx.fillText(text, -8, -20); |
| michael@0 | 41 | ctx.fillText(text, -6, -20); |
| michael@0 | 42 | ctx.fillText(text, -4, -20); |
| michael@0 | 43 | ctx.fillText(text, -2, -20); |
| michael@0 | 44 | ctx.fillText(text, 0, -20); |
| michael@0 | 45 | ctx.fillText(text, 2, -20); |
| michael@0 | 46 | ctx.fillText(text, 4, -20); |
| michael@0 | 47 | ctx.fillText(text, 6, -20); |
| michael@0 | 48 | |
| michael@0 | 49 | isPixel(ctx, 15,0, 255,0,0,255, "15,0", "255,0,0,255", 5); |
| michael@0 | 50 | isPixel(ctx, 15,49, 0,255,0,255, "15,49", "0,255,0,255", 5); |
| michael@0 | 51 | SimpleTest.finish(); |
| michael@0 | 52 | |
| michael@0 | 53 | }); |
| michael@0 | 54 | </script> |
| michael@0 | 55 |
