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Merge pull request #3082 from brendandahl/min-canvas-width

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Use at least 1x1 pixel canvas for groups.
This commit is contained in:
Yury Delendik 2013-04-29 10:13:54 -07:00
commit 2a7f6d6582
1 changed files with 4 additions and 3 deletions
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7
src/canvas.js
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@ -1422,9 +1422,10 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
group.bbox,
currentCtx.mozCurrentTransform);
// Use ceil in case we're between sizes so we don't create canvas that is
// too small.
var drawnWidth = Math.ceil(bounds[2] - bounds[0]);
var drawnHeight = Math.ceil(bounds[3] - bounds[1]);
// too small and make the canvas at least 1x1 pixels.
var drawnWidth = Math.max(Math.ceil(bounds[2] - bounds[0]), 1);
var drawnHeight = Math.max(Math.ceil(bounds[3] - bounds[1]), 1);
var scratchCanvas = createScratchCanvas(drawnWidth, drawnHeight);
var groupCtx = scratchCanvas.getContext('2d');
addContextCurrentTransform(groupCtx);