зеркало из https://github.com/mozilla/gecko-dev.git
42 строки
1.2 KiB
HTML
42 строки
1.2 KiB
HTML
<!DOCTYPE html>
|
||
<html>
|
||
<head>
|
||
<meta charset="utf-8">
|
||
</head>
|
||
<body>
|
||
<script type="text/javascript">
|
||
var testFont = '40px sans-serif';
|
||
|
||
function test(x, y, text, style, rotation) {
|
||
var canvas = document.createElement("canvas");
|
||
canvas.width = 400;
|
||
canvas.height = 400;
|
||
canvas.style.cssText = 'position:absolute;' + style;
|
||
document.getElementsByTagName('body')[0].appendChild(canvas);
|
||
var ctx = canvas.getContext('2d');
|
||
ctx.globalAlpha = 0.5;
|
||
ctx.beginPath();
|
||
ctx.moveTo(x - 20, y); ctx.lineTo(x + 20, y);
|
||
ctx.moveTo(x, y - 20); ctx.lineTo(x, y + 20);
|
||
ctx.stroke();
|
||
ctx.globalAlpha = 1.0;
|
||
ctx.font = testFont;
|
||
if (rotation != 0) {
|
||
ctx.translate(x,y);
|
||
ctx.rotate(rotation);
|
||
ctx.translate(-x,-y);
|
||
}
|
||
ctx.fillText(text, x, y);
|
||
}
|
||
|
||
// Testcase: vertical text with orientation:sideways-right
|
||
test(100, 50, 'Hello', 'writing-mode:vertical-lr;text-orientation:sideways-right', 0);
|
||
|
||
// Reference: horizontal text with 90° rotation
|
||
// test(100, 50, 'Hello', 'writing-mode:horizontal-tb', Math.PI/2);
|
||
|
||
// Non-reference: vertical text with orientation:mixed
|
||
// test(100, 50, 'Hello', 'writing-mode:vertical-lr;text-orientation:mixed', 0);
|
||
|
||
</script>
|