| Index: LayoutTests/fast/canvas/canvas-normalize-string.html
|
| diff --git a/LayoutTests/fast/canvas/canvas-normalize-string.html b/LayoutTests/fast/canvas/canvas-normalize-string.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..fd1ed62b38aef4cf99334c6a414d670196150ae2
|
| --- /dev/null
|
| +++ b/LayoutTests/fast/canvas/canvas-normalize-string.html
|
| @@ -0,0 +1,67 @@
|
| +<html>
|
| +<head>
|
| +<meta charset="UTF-8" />
|
| +<title>Canvas Normalized String Test</title>
|
| +</head>
|
| +
|
| +<body>
|
| +<p>On success, two same text string with equal width will be rendered.</p>
|
| +<canvas id="myCanvas" width="300px" height="300px" style="border:1px solid #c3c3c3;">
|
| +Your browser does not support the canvas element.
|
| +</canvas>
|
| +<div id="console"></div>
|
| +
|
| +<script type="text/javascript">
|
| +function compareImageData(img1,img2)
|
| +{
|
| + if(img1.data.length != img2.data.length)
|
| + return false;
|
| +
|
| + for(var i = 0; i < img1.data.length; ++i){
|
| + if(img1.data[i] != img2.data[i])
|
| + return false;
|
| + }
|
| + return true;
|
| +}
|
| +
|
| +function compareStrings(string1, string2, fontSize, ctx, yCo)
|
| +{
|
| + ctx.fillText(string1, 10, yCo);
|
| + var imgDataCombinedText = ctx.getImageData(10,yCo-fontSize, ctx.measureText(string1).width,fontSize);
|
| +
|
| + yCo += fontSize * 2;
|
| + ctx.fillText(string2, 10, yCo);
|
| + var imgData = ctx.getImageData(10, yCo-fontSize, ctx.measureText(string2).width,fontSize);
|
| + return compareImageData(imgDataCombinedText, imgData);
|
| +}
|
| +
|
| +if (window.testRunner)
|
| + testRunner.dumpAsText();
|
| +
|
| +var c=document.getElementById("myCanvas");
|
| +var ctx=c.getContext("2d");
|
| +
|
| +var yCo = 30;
|
| +var testFlag = false;
|
| +var fontFamily = "Arial, san-serif";
|
| +var fontSize = 20;
|
| +ctx.font = fontSize + "px " + fontFamily;
|
| +
|
| +// This will test both Complex and Simple code path
|
| +var latinString="Sample string \u0009 \u000A \u000D string end";
|
| +var normalizedLatinString="Sample string \u0020 \u0020 \u0020 string end";
|
| +
|
| +var HindiString="हिन्दी \u0009 \u000A \u000D हिन्दी ";
|
| +var normalizedHindiString="हिन्दी \u0020 \u0020 \u0020 हिन्दी ";
|
| +
|
| +testFlag = compareStrings(latinString, normalizedLatinString, fontSize, ctx, yCo);
|
| +yCo += fontSize * 4;
|
| +testFlag = compareStrings(HindiString, normalizedHindiString, fontSize, ctx, yCo);
|
| +if (testFlag)
|
| + document.getElementById("console").innerHTML = "TEST PASSED";
|
| +else
|
| + document.getElementById("console").innerHTML = "TEST FAILED";
|
| +
|
| +</script>
|
| +</body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 567543002:
Avoid re-parsing of string in fillText and measureText in Canvas (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master