test_2d.gradient.radial.cone.top.html (2109B)
1 <!DOCTYPE HTML> 2 <title>Canvas test: 2d.gradient.radial.cone.top</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 9 function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 10 var pixel = ctx.getImageData(x, y, 1, 1); 11 var pr = pixel.data[0], 12 pg = pixel.data[1], 13 pb = pixel.data[2], 14 pa = pixel.data[3]; 15 ok(r-d <= pr && pr <= r+d && 16 g-d <= pg && pg <= g+d && 17 b-d <= pb && pb <= b+d && 18 a-d <= pa && pa <= a+d, 19 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 20 } 21 22 function todo_isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 23 var pixel = ctx.getImageData(x, y, 1, 1); 24 var pr = pixel.data[0], 25 pg = pixel.data[1], 26 pb = pixel.data[2], 27 pa = pixel.data[3]; 28 todo(r-d <= pr && pr <= r+d && 29 g-d <= pg && pg <= g+d && 30 b-d <= pb && pb <= b+d && 31 a-d <= pa && pa <= a+d, 32 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 33 } 34 35 SimpleTest.waitForExplicitFinish(); 36 addLoadEvent(function () { 37 38 var canvas = document.getElementById('c'); 39 var ctx = canvas.getContext('2d'); 40 41 ctx.fillStyle = '#f00'; 42 ctx.fillRect(0, 0, 100, 50); 43 44 var g = ctx.createRadialGradient(230, 25, 100, 100, 25, 101); 45 g.addColorStop(0, '#f00'); 46 g.addColorStop(1, '#0f0'); 47 ctx.fillStyle = g; 48 ctx.fillRect(0, 0, 100, 50); 49 50 isPixel(ctx, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 0); 51 isPixel(ctx, 50,1, 0,255,0,255, "50,1", "0,255,0,255", 0); 52 isPixel(ctx, 98,1, 0,255,0,255, "98,1", "0,255,0,255", 0); 53 isPixel(ctx, 1,25, 0,255,0,255, "1,25", "0,255,0,255", 0); 54 isPixel(ctx, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 0); 55 isPixel(ctx, 98,25, 0,255,0,255, "98,25", "0,255,0,255", 0); 56 isPixel(ctx, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 0); 57 isPixel(ctx, 50,48, 0,255,0,255, "50,48", "0,255,0,255", 0); 58 isPixel(ctx, 98,48, 0,255,0,255, "98,48", "0,255,0,255", 0); 59 60 SimpleTest.finish(); 61 62 }); 63 </script>