Sakurai/pdf.js
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Add a 'scale' url parameter

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This commit is contained in:
Vivien Nicolas 2011-06-25 03:48:49 +02:00
parent dd9423624c
commit 69c1a54971
2 changed files with 7 additions and 4 deletions
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4
viewer.html
View File

@ -5,6 +5,7 @@
<script type="text/javascript" src="viewer.js"></script>
<script type="text/javascript" src="pdf.js"></script>
<script type="text/javascript" src="utils/fonts_utils.js"></script>
<script type="text/javascript" src="fonts.js"></script>
<script type="text/javascript" src="glyphlist.js"></script>
</head>
@ -25,8 +26,7 @@
<div id="viewer">
<!-- Canvas dimensions must be specified in CSS pixels. CSS pixels
are always 96 dpi. 816x1056 is 8.5x11in at 96dpi. -->
<!-- We're rendering here at 1.5x scale. -->
<canvas id="canvas" width="1224" height="1584"></canvas>
<canvas id="canvas" width="816" height="1056" defaultwidth="816" defaultheight="1056"></canvas>
</div>
</body>
</html>

7
viewer.js
View File

@ -3,11 +3,12 @@
"use strict";
var pdfDocument, canvas, pageDisplay, pageNum, numPages, pageTimeout;
var pdfDocument, canvas, pageScale, pageDisplay, pageNum, numPages, pageTimeout;
function load(userInput) {
canvas = document.getElementById("canvas");
canvas.mozOpaque = true;
pageNum = parseInt(queryParams().page) || 1;
pageNum = ("page" in queryParams()) ? parseInt(queryParams().page) : 1;
pageScale = ("scale" in queryParams()) ? parseInt(queryParams().scale) : 1.5;
var fileName = userInput;
if (!userInput) {
fileName = queryParams().file || "compressed.tracemonkey-pldi-09.pdf";
@ -59,6 +60,8 @@ function displayPage(num) {
var t0 = Date.now();
var page = pdfDocument.getPage(pageNum = num);
canvas.width = parseInt(canvas.getAttribute("defaultwidth")) * pageScale;
canvas.height = parseInt(canvas.getAttribute("defaultheight")) * pageScale;
var t1 = Date.now();
var ctx = canvas.getContext("2d");