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Move Item#setBounds() close to #getBounds() and document #_getBounds().

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This commit is contained in:
Jürg Lehni 2011-06-30 08:53:57 +02:00
parent cca562efc0
commit 4c6e152748
1 changed files with 25 additions and 21 deletions
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46
src/item/Item.js
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@ -1046,6 +1046,27 @@ var Item = this.Item = Base.extend(/** @lends Item# */{
return this._getBounds('getBounds');
},
setBounds: function(rect) {
rect = Rectangle.read(arguments);
var bounds = this.getBounds(),
matrix = new Matrix(),
center = rect.getCenter();
// Read this from bottom to top:
// Translate to new center:
matrix.translate(center);
// Scale to new Size, if size changes and avoid divisions by 0:
if (rect.width != bounds.width || rect.height != bounds.height) {
matrix.scale(
bounds.width != 0 ? rect.width / bounds.width : 1,
bounds.height != 0 ? rect.height / bounds.height : 1);
}
// Translate to center:
center = bounds.getCenter();
matrix.translate(-center.x, -center.y);
// Now execute the transformation:
this.transform(matrix);
},
/**
* The bounding rectangle of the item including stroke width.
*
@ -1056,6 +1077,10 @@ var Item = this.Item = Base.extend(/** @lends Item# */{
return this._getBounds('getStrokeBounds');
},
/**
* Loops through all children, gets their bounds and finds the bounds around
* all of them.
*/
_getBounds: function(getter) {
var children = this._children;
// TODO: What to return if nothing is defined, e.g. empty Groups?
@ -1088,27 +1113,6 @@ var Item = this.Item = Base.extend(/** @lends Item# */{
rect.x, rect.y, rect.width, rect.height);
},
setBounds: function(rect) {
rect = Rectangle.read(arguments);
var bounds = this.getBounds(),
matrix = new Matrix(),
center = rect.getCenter();
// Read this from bottom to top:
// Translate to new center:
matrix.translate(center);
// Scale to new Size, if size changes and avoid divisions by 0:
if (rect.width != bounds.width || rect.height != bounds.height) {
matrix.scale(
bounds.width != 0 ? rect.width / bounds.width : 1,
bounds.height != 0 ? rect.height / bounds.height : 1);
}
// Translate to center:
center = bounds.getCenter();
matrix.translate(-center.x, -center.y);
// Now execute the transformation:
this.transform(matrix);
},
/**
* The bounding rectangle of the item including stroke width and controls.
*/