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/parts/GraphicalEditorWithFlyoutPalette.java
if ( splitter == null )
			{
				page = createPalettePage( );
				return page;
			}
			return createPalettePage( );
		}
		if ( type == PaletteRoot.class )
		{
			return getPaletteRoot( );
		}
		if ( type == DataViewPage.class )
		{
			DataViewTreeViewerPage page = new DataViewTreeViewerPage( (ModuleHandle) ( (AbstractMultiPageEditor) getMultiPageEditor( ) ).getInputContext( )
					.getModel( ) );
			return page;
		}
		if ( type == ZoomManager.class )
		{
			return getGraphicalViewer( ).getProperty( ZoomManager.class.toString( ) );
		}
		return super.getAdapter( type );
	}
	protected abstract IEditorPart getMultiPageEditor( );
	/**
	 * @return the graphical viewer's control
	 */
	protected Control getGraphicalControl( )
	{
		return getGraphicalViewer( ).getControl( );