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Fix undefined group bounding box

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This commit is contained in:
Jonas Jenwald 2013-11-04 18:16:33 +01:00
parent 1ce8afc23c
commit 4ae3802484
3 changed files with 15 additions and 4 deletions
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9
src/display/canvas.js
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@ -1507,10 +1507,11 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
group.bbox,
currentCtx.mozCurrentTransform);
// Clip the bounding box to the current canvas.
bounds = Util.intersect(bounds, [0,
0,
currentCtx.canvas.width,
currentCtx.canvas.height]);
var canvasBounds = [0,
0,
currentCtx.canvas.width,
currentCtx.canvas.height];
bounds = Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
// Use ceil in case we're between sizes so we don't create canvas that is
// too small and make the canvas at least 1x1 pixels.
var drawnWidth = Math.max(Math.ceil(bounds[2] - bounds[0]), 1);