ZenBrowserMirrors/pdf.js
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fix image width/height for zoomed viewport

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image width/height is off while pdf is zoomed,
use raw transform values to compute width/height
to fix this.
This commit is contained in:
j 2013-02-12 16:00:19 +05:30
parent c40c594999
commit c33b92036f
1 changed files with 4 additions and 6 deletions
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10
src/canvas.js
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@ -1286,15 +1286,13 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
0, -h, w, h); 0, -h, w, h);
if (this.imageLayer) { if (this.imageLayer) {
var currentTransform = ctx.mozCurrentTransformInverse; var currentTransform = ctx.mozCurrentTransformInverse;
var widthScale = Math.max(Math.abs(currentTransform[0]), 1);
var heightScale = Math.max(Math.abs(currentTransform[3]), 1);
var position = this.getCanvasPosition(0, 0); var position = this.getCanvasPosition(0, 0);
this.imageLayer.appendImage({ this.imageLayer.appendImage({
objId: objId, objId: objId,
left: position[0], left: position[0],
top: position[1], top: position[1],
width: w / widthScale, width: w / currentTransform[0],
height: h / heightScale height: h / currentTransform[3]
}); });
} }
this.restore(); this.restore();
@ -1402,8 +1400,8 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
imgData: imgData, imgData: imgData,
left: position[0], left: position[0],
top: position[1], top: position[1],
width: width / widthScale, width: width / currentTransform[0],
height: height / heightScale height: height / currentTransform[3]
}); });
} }
this.restore(); this.restore();