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Intersect group bounding box with the current canvas dimensions.

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Brendan Dahl 2013-10-10 12:41:11 -07:00
parent 99e45048cf
commit 29b89f1f1e
3 changed files with 12 additions and 0 deletions
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5
src/display/canvas.js
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@ -1506,6 +1506,11 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var bounds = Util.getAxialAlignedBoundingBox(
group.bbox,
currentCtx.mozCurrentTransform);
// Clip the bounding box to the current canvas.
bounds = Util.intersect(bounds, [0,
0,
currentCtx.canvas.width,
currentCtx.canvas.height]);
// 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);