/* $Id: ActionGenerateOne.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:

  *    bobtarling

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

  *

  * 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.awt.event.ActionEvent;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.List;

 import javax.swing.Action;

 import org.argouml.i18n.Translator;

 import org.argouml.model.Model;

 import org.argouml.ui.targetmanager.TargetManager;

 import org.argouml.uml.generator.ui.ClassGenerationDialog;

 import org.tigris.gef.presentation.Fig;

 import org.argouml.ui.UndoableAction;

 /**

  * Action to trigger generation of source

  * for all selected classes and interfaces.

  *

  * @stereotype singleton

  */

 public class ActionGenerateOne extends UndoableAction {

     /**

      * The constructor.

      */

     public ActionGenerateOne() {

         super(Translator.localize("action.generate-selected-classes"), null);

         // Set the tooltip string:

         putValue(Action.SHORT_DESCRIPTION, 

                 Translator.localize("action.generate-selected-classes"));

     }

     /*

      * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)

      */

     @Override

     public void actionPerformed(ActionEvent ae) {

             super.actionPerformed(ae);

         List classes = getCandidates();

         // There is no need to test if classes is empty because

         // the shouldBeEnabled mechanism blanks out the possibility to

         // choose this alternative in this case.

         ClassGenerationDialog cgd = new ClassGenerationDialog(classes);

         cgd.setVisible(true);

     }

     /**

      * @return true if the action is enabled and there is at least a 

      * candidate class

      * @see org.tigris.gef.undo.UndoableAction#isEnabled()

      */

     @Override

     public boolean isEnabled() {

         // TODO: this seems to be called at startup only so no check so far

         return true;

         //List classes = getCandidates();

         //return classes.size() > 0;

     }

     /**

      * @return the candidates for generation

      */

     private List getCandidates() {

         List classes = new ArrayList();

         Collection targets = TargetManager.getInstance().getTargets();

         for (Object target : targets) {

             if (target instanceof Fig) {

                 target = ((Fig) target).getOwner();

             }

             if (Model.getFacade().isAClass(target)

                 || Model.getFacade().isAInterface(target)) {

                 classes.add(target);

             }

         }

         return classes;

     }

 }