/* $Id: UMLStimulusActionTextField.java 17881 2010-01-12 21:09:28Z 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:

  *    tfmorris

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

  *

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

  */

 // Copyright (c) 1996-2006 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.ui;

 import java.beans.PropertyChangeEvent;

 import java.beans.PropertyChangeListener;

 import javax.swing.JTextField;

 import javax.swing.event.DocumentEvent;

 import javax.swing.event.DocumentListener;

 /**

  * TODO: this class should be moved to package

  * org.argouml.uml.ui.behavior.common_behavior

  */

 public class UMLStimulusActionTextField extends JTextField

     implements DocumentListener, UMLUserInterfaceComponent, 

     PropertyChangeListener {

     private UMLUserInterfaceContainer theContainer;

     private UMLStimulusActionTextProperty theProperty;

     /**

      * Creates new BooleanChangeListener.

      *

      * @param container the container of UML user interface components

      * @param property the property

      */

     public UMLStimulusActionTextField(UMLUserInterfaceContainer container,

             UMLStimulusActionTextProperty property) {

         theContainer = container;

         theProperty = property;

         getDocument().addDocumentListener(this);

         update();

     }

     /*

      * @see org.argouml.uml.ui.UMLUserInterfaceComponent#targetChanged()

      */

     public void targetChanged() {

         theProperty.targetChanged();

         update();

     }

     /*

      * @see org.argouml.uml.ui.UMLUserInterfaceComponent#targetReasserted()

      */

     public void targetReasserted() {

     }

     public void propertyChange(PropertyChangeEvent event) {

         if (theProperty.isAffected(event)) {

             //

             //   check the possibility that this is a promiscuous event

             Object eventSource = event.getSource();

             Object target = theContainer.getTarget();

             //

             //    if event source is unknown or

             //       the event source is the container's target

             //          then update the field

             if (eventSource == null || eventSource == target) {

                 update();

             }

         }

     }

     private void update() {

         String oldText = getText();

         String newText = theProperty.getProperty(theContainer);

         if (oldText == null || newText == null || !oldText.equals(newText)) {

             if (oldText != newText) {

                 setText(newText);

             }

         }

     }

     /*

      * @see javax.swing.event.DocumentListener#changedUpdate(javax.swing.event.DocumentEvent)

      */

     public void changedUpdate(final DocumentEvent p1) {

         theProperty.setProperty(theContainer, getText());

     }

     /*

      * @see javax.swing.event.DocumentListener#removeUpdate(javax.swing.event.DocumentEvent)

      */

     public void removeUpdate(final DocumentEvent p1) {

         theProperty.setProperty(theContainer, getText());

     }

     /*

      * @see javax.swing.event.DocumentListener#insertUpdate(javax.swing.event.DocumentEvent)

      */

     public void insertUpdate(final DocumentEvent p1) {

         theProperty.setProperty(theContainer, getText());

     }

 }