Bug 210609 [Smoke]Crosstab is failed to preview in runtime
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/extension/ExtendedEditPart.java
stack.rollback( );
			}
		}
	}
	public IReportItemFigureProvider getExtendedElementUI( )
	{
		return elementUI;
	}
	public void setExtendedElementUI( IReportItemFigureProvider elementUI )
	{
		this.elementUI = elementUI;
	}
	public ExtendedItemHandle getExtendedItemHandle( )
	{
		return (ExtendedItemHandle) getModel( );
	}
	public boolean canResize( )
	{
		String id = GuiExtensionManager.getExtendedElementID( getExtendedItemHandle( ) );
		Boolean bool = (Boolean) ExtensionPointManager.getInstance( )
				.getExtendedElementPoint( id )
				.getAttribute( IExtensionConstants.ATTRIBUTE_EDITOR_CAN_RESIZE );
		return bool.booleanValue( );
	}
	public void deactivate( )
	{
		elementUI.disposeFigure( getExtendedItemHandle( ), getFigure( ) );
		super.deactivate( );
	}
}