/* $Id: StylePanelFigUseCase.java 17867 2010-01-12 20:47:04Z linus $

  *****************************************************************************

  * Copyright (c) 2009 Contributors - see below

  * All rights reserved. This program and the accompanying materials

  * are made available under the terms of the Eclipse Public License v1.0

  * which accompanies this distribution, and is available at

  * http://www.eclipse.org/legal/epl-v10.html

  *

  * Contributors:

  *    mvw

  *****************************************************************************

  *

  * Some portions of this file was previously release using the BSD License:

  */

 // Copyright (c) 1996-2009 The Regents of the University of California. All

 // Rights Reserved. Permission to use, copy, modify, and distribute this

 // software and its documentation without fee, and without a written

 // agreement is hereby granted, provided that the above copyright notice

 // and this paragraph appear in all copies. This software program and

 // documentation are copyrighted by The Regents of the University of

 // California. The software program and documentation are supplied "AS

 // IS", without any accompanying services from The Regents. The Regents

 // does not warrant that the operation of the program will be

 // uninterrupted or error-free. The end-user understands that the program

 // was developed for research purposes and is advised not to rely

 // exclusively on the program for any reason. IN NO EVENT SHALL THE

 // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,

 // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,

 // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF

 // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF

 // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY

 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE

 // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF

 // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,

 // UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 package org.argouml.uml.diagram.use_case.ui;

 import java.awt.event.ItemEvent;

 import javax.swing.JCheckBox;

 import org.argouml.ui.StylePanelFigNodeModelElement;

 import org.argouml.i18n.Translator;

 /**

  * A class to provide a style panel for use cases.<p>

  *

  * This adds a check box to control the display of he extension point

  * compartment.

  *

  * @author Jeremy Bennett

  */

 public class StylePanelFigUseCase extends StylePanelFigNodeModelElement {

     /**

      * The check box for toggling the visibility of extension points.

      */

     private JCheckBox epCheckBox = 

         new JCheckBox(Translator.localize("checkbox.extension-points"));

     /**

      * Flag to indicate that a refresh is going on.

      */

     private boolean refreshTransaction = false;

     /**

      * Build a style panel. Just layout the relevant boxes.

      */

     public StylePanelFigUseCase() {

         // Invoke the parent constructor first

         super();

         addToDisplayPane(epCheckBox);

         // By default we don't show the attribute check box. Mark this object

         // as a listener for the check box.

         epCheckBox.setSelected(false);

         epCheckBox.addItemListener(this);

     }

     /**

      * Refresh the display. This means setting the check box from the target use

      * case fig.

      *

      * @see org.argouml.ui.TabTarget#refresh()

      */

     public void refresh() {

         refreshTransaction = true;

         // Invoke the parent refresh first

         super.refresh();

         FigUseCase target = (FigUseCase) getTarget();

         epCheckBox.setSelected(target.isExtensionPointsVisible());

         refreshTransaction = false;

     }

     /**

      * Something has changed, check if its the check box.<p>

      *

      * @param e The event that triggered us.

      *

      * @see java.awt.event.ItemListener#itemStateChanged(java.awt.event.ItemEvent)

      */

     public void itemStateChanged(ItemEvent e) {

         if (!refreshTransaction) {

             if (e.getSource() == epCheckBox) {

                 FigUseCase target = (FigUseCase) getTarget();

                 target.setExtensionPointsVisible(epCheckBox.isSelected());

             } else {

                 super.itemStateChanged(e);

             }

         }

     }

 } /* end class StylePanelFigUseCase */