6325acca6c
Philip Taylor <philip.taylor@cl.cam.ac.uk> git-svn-id: svn://10.0.0.236/trunk@240557 18797224-902f-48f8-a5cc-f745e15eee43
32 lines
1.0 KiB
HTML
32 lines
1.0 KiB
HTML
<!DOCTYPE HTML>
|
|
<title>Canvas test: 2d.composite.globalAlpha.range</title>
|
|
<script src="/MochiKit/MochiKit.js"></script>
|
|
<script src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
|
|
<body>
|
|
<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
|
|
<script>
|
|
var _deferred = false;
|
|
|
|
SimpleTest.waitForExplicitFinish();
|
|
MochiKit.DOM.addLoadEvent(function () {
|
|
|
|
var canvas = document.getElementById('c');
|
|
var ctx = canvas.getContext('2d');
|
|
|
|
ctx.globalAlpha = 0.5;
|
|
var a = ctx.globalAlpha; // might not be exactly 0.5, if it is rounded/quantised, so remember for future comparisons
|
|
ctx.globalAlpha = 1.1;
|
|
ok(ctx.globalAlpha == a, "ctx.globalAlpha == a");
|
|
ctx.globalAlpha = -0.1;
|
|
ok(ctx.globalAlpha == a, "ctx.globalAlpha == a");
|
|
ctx.globalAlpha = 0;
|
|
ok(ctx.globalAlpha == 0, "ctx.globalAlpha == 0");
|
|
ctx.globalAlpha = 1;
|
|
ok(ctx.globalAlpha == 1, "ctx.globalAlpha == 1");
|
|
|
|
if (!_deferred) SimpleTest.finish();
|
|
});
|
|
</script>
|
|
|