test_2d.gradient.radial.touch3.html (2097B)
1 <!DOCTYPE HTML> 2 <title>Canvas test: 2d.gradient.radial.touch3</title> 3 <script src="/tests/SimpleTest/SimpleTest.js"></script> 4 <link rel="stylesheet" href="/tests/SimpleTest/test.css"> 5 <body> 6 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> 7 <script> 8 function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 9 var pixel = ctx.getImageData(x, y, 1, 1); 10 var pr = pixel.data[0], 11 pg = pixel.data[1], 12 pb = pixel.data[2], 13 pa = pixel.data[3]; 14 ok(r-d <= pr && pr <= r+d && 15 g-d <= pg && pg <= g+d && 16 b-d <= pb && pb <= b+d && 17 a-d <= pa && pa <= a+d, 18 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 19 } 20 function todo_isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 21 var pixel = ctx.getImageData(x, y, 1, 1); 22 var pr = pixel.data[0], 23 pg = pixel.data[1], 24 pb = pixel.data[2], 25 pa = pixel.data[3]; 26 todo(r-d <= pr && pr <= r+d && 27 g-d <= pg && pg <= g+d && 28 b-d <= pb && pb <= b+d && 29 a-d <= pa && pa <= a+d, 30 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 31 } 32 33 SimpleTest.waitForExplicitFinish(); 34 addLoadEvent(function () { 35 36 var canvas = document.getElementById('c'); 37 var ctx = canvas.getContext('2d'); 38 39 ctx.fillStyle = '#0f0'; 40 ctx.fillRect(0, 0, 100, 50); 41 42 var g = ctx.createRadialGradient(120, -15, 25, 140, -30, 50); 43 g.addColorStop(0, '#f00'); 44 g.addColorStop(1, '#f00'); 45 ctx.fillStyle = g; 46 ctx.fillRect(0, 0, 100, 50); 47 48 isPixel(ctx, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 0); 49 isPixel(ctx, 50,1, 0,255,0,255, "50,1", "0,255,0,255", 0); 50 isPixel(ctx, 98,1, 0,255,0,255, "98,1", "0,255,0,255", 0); 51 isPixel(ctx, 1,25, 0,255,0,255, "1,25", "0,255,0,255", 0); 52 isPixel(ctx, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 0); 53 isPixel(ctx, 98,25, 0,255,0,255, "98,25", "0,255,0,255", 0); 54 isPixel(ctx, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 0); 55 isPixel(ctx, 50,48, 0,255,0,255, "50,48", "0,255,0,255", 0); 56 isPixel(ctx, 98,48, 0,255,0,255, "98,48", "0,255,0,255", 0); 57 58 SimpleTest.finish(); 59 60 }); 61 </script>