new Label( displayArea, SWT.NONE ).setText( LABEL_LINKED_EXPRESSION ); bookmarkEditor = new Text( displayArea, SWT.BORDER | SWT.READ_ONLY ); bookmarkEditor.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
	private void createBookmarkBar( boolean isRequired )	{		String label;		if ( isRequired )		{			label = REQUIED_MARK + LABEL_BOOKMARK;		}		else		{			label = LABEL_BOOKMARK;		}		new Label( displayArea, SWT.NONE ).setText( label );		bookmarkEditor = new Text( displayArea, SWT.BORDER | SWT.SINGLE );		bookmarkEditor.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );		bookmarkEditor.addModifyListener( new ModifyListener( ) {			public void modifyText( ModifyEvent e )			{				updateButtons( );			}		} );		createExpressionButton( displayArea, bookmarkEditor );	}