mxMouseEvent.prototype.getSource=function(){return mxEvent.getSource(this.evt)};mxMouseEvent.prototype.isSource=function(a){return null!=a?mxUtils.isAncestorNode(a.node,this.getSource()):!1};mxMouseEvent.prototype.getX=function(){return mxEvent.getClientX(this.getEvent())};mxMouseEvent.prototype.getY=function(){return mxEvent.getClientY(this.getEvent())};mxMouseEvent.prototype.getGraphX=function(){return this.graphX};mxMouseEvent.prototype.getGraphY=function(){return this.graphY};