Bug 124599 Shortcut delete and menu delete act different in table column.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/TableUtil.java
if ( rect.width > 0
					&& rect.height > 0
					&& figure.isShowing( )
					&& child.getTargetEditPart( CellDragTracker.MARQUEE_REQUEST ) == child
					&& isFigureVisible( figure ) )
			{
				if ( !selection.contains( child ) )
				{
					selection.add( child );
				}
			}
		}
	}
	/**
	 * Returns the union bounds for all the tabelCell in the given List.
	 * 
	 * @param list
	 * @return
	 */
	public static Rectangle getUnionBounds( List list )
	{
		int size = list.size( );
		if ( size == 0 )
		{
			return new Rectangle( );
		}
		IFigure figure = ( (TableCellEditPart) list.get( 0 ) ).getFigure( );
		Rectangle retValue = figure.getBounds( ).getCopy( );
		for ( int i = 1; i < size; i++ )
		{