First chunk of code that will be used for transform list refactoring - code is currently unused
git-svn-id: http://svg-edit.googlecode.com/svn/trunk@880 eee81c28-f429-11dd-99c0-75d572ba1dddmaster
Jeff Schiller
parent
580d0391a4
commit
544a06863e
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@ -18,7 +18,7 @@
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- selLayerNames
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- sidepanel_handle
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*/
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var isWebkit = navigator.userAgent.indexOf("AppleWebKit") != -1;
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if(!window.console) {
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window.console = {};
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window.console.log = function(str) {};
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@ -569,6 +569,114 @@ function BatchCommand(text) {
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}
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// **************************************************************************************
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// **************************************************************************************
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// SVGTransformList implementation for Webkit
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// These methods do not currently raise any exceptions.
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// These methods also do not check that transforms are being inserted or handle if
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// a transform is already in the list, etc. This is basically implementing as much
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// of SVGTransformList that we need to get the job done.
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//
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// interface SVGEditTransformList {
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// attribute unsigned long numberOfItems;
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// void clear ( )
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// SVGTransform initialize ( in SVGTransform newItem )
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// SVGTransform getItem ( in unsigned long index )
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// SVGTransform insertItemBefore ( in SVGTransform newItem, in unsigned long index )
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// SVGTransform replaceItem ( in SVGTransform newItem, in unsigned long index )
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// SVGTransform removeItem ( in unsigned long index )
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// SVGTransform appendItem ( in SVGTransform newItem )
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// SVGTransform createSVGTransformFromMatrix ( in SVGMatrix matrix );
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// SVGTransform consolidate ( );
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// }
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// **************************************************************************************
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var svgTransformLists = {};
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var SVGEditTransformList = function(elem) {
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this._elem = elem || null;
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this._xforms = [];
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_this = this;
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this.numberOfItems = 0;
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this.clear = function() {
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_this.numberOfItems = 0;
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_this._xforms = [];
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};
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this.initialize = function(newItem) {
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_this.numberOfItems = 1;
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_this._xforms = [newItem];
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};
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this.getItem = function(index) {
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if (index < _this.numberOfItems && index >= 0) {
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return _this._xforms[index];
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}
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return null;
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};
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// TODO: update all functions that modify the transform list to update
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// the actual element
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this.insertItemBefore = function(newItem, index) {
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var retValue = null;
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if (index >= 0) {
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if (index < _this.numberOfItems) {
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var newxforms = new Array(_this.numberOfItems + 1);
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// TODO: use array copying and slicing
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for ( var i = 0; i < index; ++i) {
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newxforms[i] = _this._xforms[i];
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}
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newxforms[i] = newItem;
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for ( var j = i+1; i < _this.numberOfItems; ++j, ++i) {
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newxforms[j] = _this._xforms[i];
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}
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_this.numberOfItems++;
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_this._xforms = newxforms;
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retValue = newItem;
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// TODO: modify the element's transform
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}
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else {
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retValue = _this.appendItem(newItem);
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}
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}
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return retValue;
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};
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this.replaceItem = function(newItem, index) {
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var retValue = null;
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if (index < _this.numberOfItems && index >= 0) {
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_this._xforms[index] = newItem;
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retValue = newItem;
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// TODO: modify the element's transform
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}
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return retValue;
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};
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this.removeItem = function(index) {
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var retValue = null;
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if (index < _this.numberOfItems && index >= 0) {
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var retValue = _this._xforms[index];
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var newxforms = new Array(_this.numberOfItems - 1);
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for (var i = 0; i < index; ++i) {
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newxforms[i] = _this._xforms[i];
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}
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for (var j = i; j < _this.numberOfItems-1; ++j, ++i) {
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newxforms[j] = _this._xforms[i+1];
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}
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_this.numberOfItems--;
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_this._xforms = newxforms;
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// TODO: modify the element's transform
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}
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return retValue;
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};
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this.appendItem = function(newItem) {
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_this._xforms.push(newItem);
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_this.numberOfItems++;
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// TODO: modify the element's transform
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return newItem;
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};
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};
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// **************************************************************************************
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var addSvgElementFromJson = function(data) {
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return canvas.updateElementFromJson(data)
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};
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@ -4244,6 +4352,18 @@ function BatchCommand(text) {
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this.changeSelectedAttributeNoUndo("stroke-opacity", val);
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};
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// returns an object that behaves like a SVGTransformList
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this.getTransformList = function(elem) {
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if (isWebkit) {
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var t = svgTransformLists[elem];
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if (!t) {
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t = svgTransformLists[elem] = new SVGEditTransformList(elem);
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}
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return t;
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}
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return elem.transform.baseVal;
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};
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this.getBBox = function(elem) {
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var selected = elem || selectedElements[0];
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if (elem.nodeType != 1) return null;
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