/* $Id: ImportClasspathDialog.java 17871 2010-01-12 20:49:55Z 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) 1996-2008 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.reveng.ui;

 import java.awt.BorderLayout;

 import java.awt.Frame;

 import java.awt.GridLayout;

 import java.awt.event.ActionEvent;

 import java.awt.event.ActionListener;

 import java.io.File;

 import java.util.ArrayList;

 import java.util.List;

 import javax.swing.DefaultListModel;

 import javax.swing.JButton;

 import javax.swing.JFileChooser;

 import javax.swing.JLabel;

 import javax.swing.JList;

 import javax.swing.JPanel;

 import javax.swing.JScrollPane;

 import org.argouml.i18n.Translator;

 import org.argouml.uml.reveng.SettingsTypes.PathListSelection;

 import org.tigris.gef.base.Globals;

 /**

  * Panel to collect a list of paths for an importer. <em>NOTE:</em> Although

  * this class is public it is <em>only</em> intended for use by the package

  * org.argouml.reveng.

  * <p>

  * This was originally included in Import.java and was called

  * ImportClasspathDialog.

  */

 public class ImportClasspathDialog extends JPanel {

     private JList paths;

     private DefaultListModel pathsModel;

     private JButton addButton;

     private JButton removeButton;

     private JFileChooser chooser;

     private PathListSelection setting;

     /**

      * Construct a panel which provides controls for populating a list of 

      * paths.  This can be used for a Java classpath, C++ include path, etc.

      * 

      * @param pathListSetting the settings object for this pathlist

      */

     public ImportClasspathDialog(PathListSelection pathListSetting) {

         super();

         setting = pathListSetting;

         setToolTipText(setting.getDescription());

         setLayout(new BorderLayout(0, 0));

         JLabel label = new JLabel(setting.getLabel());

         add(label, BorderLayout.NORTH);

         pathsModel = new DefaultListModel();

         for (String path : setting.getDefaultPathList()) {

             pathsModel.addElement(path);

         }

         paths = new JList(pathsModel);

         paths.setVisibleRowCount(5);

         paths.setToolTipText(setting.getDescription());

         JScrollPane listScroller = new JScrollPane(paths);

         add(listScroller, BorderLayout.CENTER);

         // panel for controls

         JPanel controlsPanel = new JPanel();

         controlsPanel.setLayout(new GridLayout(0, 2, 50, 0));

         addButton = new JButton(Translator.localize("button.add"));

         controlsPanel.add(addButton);

         addButton.addActionListener(new AddListener());

         removeButton = new JButton(Translator.localize("button.remove"));

         controlsPanel.add(removeButton);

         removeButton.addActionListener(new RemoveListener());

         // TODO: Add Up/Down buttons to control the ordering of items

         add(controlsPanel, BorderLayout.SOUTH);

     }

     private void updatePathList() {

         List<String> pathList = new ArrayList<String>();

         for (int i = 0; i < pathsModel.size(); i++) {

             String path = (String) pathsModel.getElementAt(i);

             pathList.add(path);

         }

         setting.setPathList(pathList);

     }

     class RemoveListener implements ActionListener {

         /*

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

          */

         public void actionPerformed(ActionEvent e) {

             //This method can be called only if

             //there's a valid selection

             //so go ahead and remove whatever's selected.

             int index = paths.getSelectedIndex();

             if (index < 0) {

                 return;

             }

             pathsModel.remove(index);

             updatePathList();

             int size = pathsModel.getSize();

             if (size == 0) { //nothings left, disable firing.

                 removeButton.setEnabled(false);

             } else { //Select an index.

                 if (index == pathsModel.getSize()) {

                     //removed item in last position

                     index--;

                 }

                 paths.setSelectedIndex(index);

                 paths.ensureIndexIsVisible(index);

             }

         }

     }

     class AddListener implements ActionListener {

         /*

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

          */

         public void actionPerformed(ActionEvent e) {

             if (chooser == null ) {

                 chooser = new JFileChooser(Globals.getLastDirectory()); 

                 if (chooser == null) {

                     chooser = new JFileChooser();

                 }

                 chooser.setFileSelectionMode(

                         JFileChooser.FILES_AND_DIRECTORIES);

                 chooser.setMultiSelectionEnabled(true);

                 chooser.addActionListener(new ActionListener() {

                     public void actionPerformed(ActionEvent e1) {

                         if (e1.getActionCommand().equals(

                                 JFileChooser.APPROVE_SELECTION)) {

                             File[] files = chooser.getSelectedFiles();

                             for (File theFile : files) {

                                 if (theFile != null) {

                                     pathsModel.addElement(theFile.toString());

                                 }

                             }

                             updatePathList();

                         } else if (e1.getActionCommand().equals(

                                 JFileChooser.CANCEL_SELECTION)) {

                             // Just quit

                         }

                     }

                 });

             }

             chooser.showOpenDialog(new Frame());

         }

     }

 }