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Some minor changes to Item.

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This commit is contained in:
Jonathan Puckey 2011-04-27 16:10:23 +02:00
parent 81a15379e5
commit 55fc2bc99c
1 changed files with 5 additions and 7 deletions
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12
src/item/Item.js
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@ -221,28 +221,28 @@ var Item = this.Item = Base.extend({
* The first item contained within this item.
*/
getFirstChild: function() {
return this.children && this.children[0] || null;
return this.children ? this.children[0] : null;
},
/**
* The last item contained within this item.
*/
getLastChild: function() {
return this.children && this.children[this.children.length - 1] || null;
return this.children ? this.children[this.children.length - 1] : null;
},
/**
* The next item on the same level as this item.
*/
getNextSibling: function() {
return this.parent && this.parent.children[this.getIndex() + 1] || null;
return this.parent ? this.parent.children[this.getIndex() + 1] : null;
},
/**
* The previous item on the same level as this item.
*/
getPreviousSibling: function() {
return this.parent && this.parent.children[this.getIndex() - 1] || null;
return this.parent ? this.parent.children[this.getIndex() - 1] : null;
},
/**
@ -478,10 +478,8 @@ var Item = this.Item = Base.extend({
// weird results on Scriptographer. Also we can't use antialiasing, since
// Canvas doesn't support it yet. Document colorMode is also out of the
// question for now.
if (!resolution)
resolution = 72;
var bounds = this.getStrokeBounds();
var scale = resolution / 72;
var scale = resolution ? resolution / 72 : 1;
var canvas = CanvasProvider.getCanvas(bounds.getSize().multiply(scale));
var ctx = canvas.getContext('2d');
var matrix = new Matrix().scale(scale).translate(-bounds.x, -bounds.y);