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
}
	/**
	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#getGraphicalViewer()
	 */
	public GraphicalViewer getGraphicalViewer( )
	{
		return super.getGraphicalViewer( );
	}
	/**
	 * @return the FlyoutPreferences object used to save the flyout palette's
	 *         preferences
	 */
	protected abstract FlyoutPreferences getPalettePreferences( );
	/**
	 * Returns the PaletteRoot for the palette viewer.
	 * 
	 * @return the palette root
	 */
	protected abstract PaletteRoot getPaletteRoot( );
	/**
	 * Returns the palette viewer provider that is used to create palettes for
	 * the view and the flyout. Creates one if it doesn't already exist.
	 * 
	 * @return the PaletteViewerProvider that can be used to create
	 *         PaletteViewers for this editor
	 * @see #createPaletteViewerProvider()
	 */
	protected final PaletteViewerProvider getPaletteViewerProvider( )
	{
		if ( provider == null )