     {
         if (!popUpIsDisplayed)
             return;
-                
-        var m:Matrix = MatrixUtil.getConcatenatedMatrix(this, systemManager.getSandboxRoot());
-         
+        
         // Set the dimensions explicitly because UIComponents always set themselves to their
         // measured / explicit dimensions if they are parented by the SystemManager. 
         if (popUp is UIComponent)

{
    
import flash.display.DisplayObject;
import flash.display.Stage;
import flash.display.StageDisplayState;
import flash.events.Event;
import flash.geom.ColorTransform;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;

        }
        
        var popUpPoint:Point = calculatePopUpPosition();
        PopUpUtil.applyPopUpTransform(this, $transform.concatenatedColorTransform, systemManager, popUp, popUpPoint);
    }
    
    //--------------------------------------------------------------------------
