      *
      *  @param event The DragEvent object.
      *  
-     *  @see spark.layouts.LayoutBase#showDropIndicator
-     *  @see spark.layouts.LayoutBase#hideDropIndicator
+     *  @see spark.layouts.supportClasses.LayoutBase#showDropIndicator
+     *  @see spark.layouts.supportClasses.LayoutBase#hideDropIndicator
      *  
      *  @langversion 3.0
      *  @playerversion Flash 11

     *
     *  @param event The DragEvent object.
     *  
     *  @see spark.layouts.LayoutBase#showDropIndicator
     *  @see spark.layouts.LayoutBase#hideDropIndicator
     *  
     *  @langversion 3.0
     *  @playerversion Flash 11

        
    }
    
    private function adjustSelection(event:MouseEvent, rowIndex:int, columnIndex:int):void
    {
        if (event.ctrlKey)
        {
            // ctrl-click toggles the selection and updates caret and anchor.
            if (!toggleSelection(rowIndex, columnIndex))
                return;

            grid.anchorRowIndex = rowIndex;
            grid.anchorColumnIndex = columnIndex;
        }
        else if (event.shiftKey)
        {
            // shift-click extends the selection and updates the caret.
            if  (grid.selectionMode == GridSelectionMode.MULTIPLE_ROWS || grid.selectionMode == GridSelectionMode.MULTIPLE_CELLS)
                extendSelection(rowIndex, columnIndex);
        }
        else
        {
            // click sets the selection and updates the caret and anchor positions.
            setSelectionAnchorCaret(rowIndex, columnIndex);
        }
    }

    /**
     *  @private
     *  Redispatch the grid's "caretChange" event.
