Ext.grid.SplitDragZone=function(a,c,b){this.grid=a;this.view=a.getView();this.proxy=this.view.resizeProxy;Ext.grid.SplitDragZone.superclass.constructor.call(this,c,"gridSplitters"+this.grid.getGridEl().id,{dragElId:Ext.id(this.proxy.dom),resizeFrame:false});this.setHandleElId(Ext.id(c));this.setOuterHandleElId(Ext.id(b));this.scroll=false};Ext.extend(Ext.grid.SplitDragZone,Ext.dd.DDProxy,{fly:Ext.Element.fly,b4StartDrag:function(a,d){this.view.headersDisabled=true;this.proxy.setHeight(this.view.mainWrap.getHeight());var b=this.cm.getColumnWidth(this.cellIndex);var c=Math.max(b-this.grid.minColumnWidth,0);this.resetConstraints();this.setXConstraint(c,1000);this.setYConstraint(0,0);this.minX=a-c;this.maxX=a+1000;this.startPos=a;Ext.dd.DDProxy.prototype.b4StartDrag.call(this,a,d)},handleMouseDown:function(b){ev=Ext.EventObject.setEvent(b);var a=this.fly(ev.getTarget());if(a.hasClass("x-grid-split")){this.cellIndex=this.view.getCellIndex(a.dom);this.split=a.dom;this.cm=this.grid.colModel;if(this.cm.isResizable(this.cellIndex)&&!this.cm.isFixed(this.cellIndex)){Ext.grid.SplitDragZone.superclass.handleMouseDown.apply(this,arguments)}}},endDrag:function(c){this.view.headersDisabled=false;var a=Math.max(this.minX,Ext.lib.Event.getPageX(c));var b=a-this.startPos;this.view.onColumnSplitterMoved(this.cellIndex,this.cm.getColumnWidth(this.cellIndex)+b)},autoOffset:function(){this.setDelta(0,0)}});