     public function discard(willBeRecycled:Boolean):void
     {
     }
-    
-    //--------------------------------------------------------------------------
-    //
-    //  Event Handlers
-    //
-    //-------------------------------------------------------------------------- 
-    
-    // TODO (hmuller) - this code should be common with DefaultGridItemRenderer
-    private function toolTipShowHandler(event:ToolTipEvent):void
-    {
-        var toolTip:IToolTip = event.toolTip;
-        
-        toolTip.text = column.itemToDataTip(data);  // Lazily compute the tooltip text
-        
-        // Move the origin of the tooltip to the origin of this item renderer
-        
-        var sm:ISystemManager = systemManager.topLevelSystemManager;
-        var sbRoot:DisplayObject = sm.getSandboxRoot();
-        var screen:Rectangle = sm.getVisibleApplicationRect(null, true);
-        var pt:Point = new Point(0, 0);
-        pt = localToGlobal(pt);
-        pt = sbRoot.globalToLocal(pt);          
-        
-        toolTip.move(pt.x, Math.round(pt.y + (height - toolTip.height) / 2));
-        
-        var screenRight:Number = screen.x + screen.width;
-        pt.x = toolTip.x;
-        pt.y = toolTip.y;
-        pt = sbRoot.localToGlobal(pt);
-        if (pt.x + toolTip.width > screenRight)
-            toolTip.move(toolTip.x - (pt.x + toolTip.width - screenRight), toolTip.y);
-    }
+            
 }
 }
{
    include "../../core/Version.as";
    
    //--------------------------------------------------------------------------
    //
    //  Constructor
    //

import flash.geom.Point;
import flash.geom.Rectangle;

import mx.core.ILayoutDirectionElement;
import mx.core.IToolTip;
import mx.core.IUIComponent;
import mx.core.LayoutDirection;
import mx.core.mx_internal;
import mx.events.FlexEvent;
import mx.events.ToolTipEvent;
import mx.managers.ISystemManager;
import mx.managers.ToolTipManager;

import spark.components.Grid;
import spark.components.Group;
