зеркало из https://github.com/mozilla/pjs.git
34 строки
737 B
HTML
34 строки
737 B
HTML
|
<html>
|
|||
|
|
<head>
|
|||
|
|
<script type="application/javascript">
|
|||
|
|
function draw() {
|
|||
|
|
var canvas = document.getElementById("canvas");
|
|||
|
|
var ctx = canvas.getContext("2d");
|
|||
|
|
|
|||
|
|
ctx.fillStyle = "red";
|
|||
|
|
ctx.fillRect(0, 0, 500, 500);
|
|||
|
|
ctx.save();
|
|||
|
|
ctx.beginPath();
|
|||
|
|
ctx.moveTo(30, 30);
|
|||
|
|
ctx.lineTo(149, 30);
|
|||
|
|
ctx.lineTo(150, 150);
|
|||
|
|
ctx.lineTo(30, 150);
|
|||
|
|
ctx.lineTo(30, 30);
|
|||
|
|
ctx.clip();
|
|||
|
|
ctx.clearRect(0, 0, 500, 500);
|
|||
|
|
/**
|
|||
|
|
* Work around a strange left edge offset problem in D2D.
|
|||
|
|
*/
|
|||
|
|
ctx.restore();
|
|||
|
|
ctx.fillStyle = "red";
|
|||
|
|
ctx.fillRect(0, 0, 1, 500);
|
|||
|
|
ctx.fillStyle = "white";
|
|||
|
|
ctx.fillRect(30, 30, 1, 120);
|
|||
|
|
}
|
|||
|
|
</script>
|
|||
|
|
</head>
|
|||
|
|
<body onload="draw()">
|
|||
|
|
<canvas id="canvas" width="300" height="300"></canvas>
|
|||
|
|
</body>
|
|||
|
|
</html>
|