001/* ========================================================================
002 * JCommon : a free general purpose class library for the Java(tm) platform
003 * ========================================================================
004 *
005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006 * 
007 * Project Info:  http://www.jfree.org/jcommon/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it 
010 * under the terms of the GNU Lesser General Public License as published by 
011 * the Free Software Foundation; either version 2.1 of the License, or 
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but 
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022 * USA.  
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025 * in the United States and other countries.]
026 * 
027 * -----------------
028 * TabbedApplet.java
029 * -----------------
030 * (C)opyright 2004, by Thomas Morgner and Contributors.
031 *
032 * Original Author:  Thomas Morgner;
033 * Contributor(s):   David Gilbert (for Object Refinery Limited);
034 *
035 * $Id: TabbedApplet.java,v 1.5 2005/10/18 13:23:37 mungady Exp $
036 *
037 * Changes
038 * -------------------------
039 * 16-Feb-2004 : Initial version
040 * 07-Jun-2004 : Added standard header (DG);
041 */
042
043package org.jfree.ui.tabbedui;
044
045import java.awt.BorderLayout;
046import java.beans.PropertyChangeEvent;
047import java.beans.PropertyChangeListener;
048
049import javax.swing.JApplet;
050import javax.swing.JPanel;
051
052/**
053 * An applet implementation that uses a tabbed GUI as backend. 
054 *
055 * @author Thomas Morgner
056 */
057public class TabbedApplet extends JApplet {
058
059    /**
060     * A property change listener that waits for the menubar to change.
061     */
062    private class MenuBarChangeListener implements PropertyChangeListener {
063        /**
064         * Creates a new change listener.
065         */
066        public MenuBarChangeListener() {
067        }
068
069        /**
070         * This method gets called when a bound property is changed.
071         *
072         * @param evt A PropertyChangeEvent object describing the event source
073         *            and the property that has changed.
074         */
075        public void propertyChange(final PropertyChangeEvent evt) {
076            if (evt.getPropertyName().equals(AbstractTabbedUI.JMENUBAR_PROPERTY)) {
077                setJMenuBar(getTabbedUI().getJMenuBar());
078            }
079        }
080    }
081
082    /** The UI for the applet. */
083    private AbstractTabbedUI tabbedUI;
084    
085    /**
086     * Default constructor.
087     */
088    public TabbedApplet() {
089    }
090
091    
092    /**
093     * Returns the UI implementation for the applet.
094     *
095     * @return Returns the tabbedUI.
096     */
097    protected final AbstractTabbedUI getTabbedUI()
098    {
099      return tabbedUI;
100    }
101    /**
102     * Initialises the applet.
103     * 
104     * @param tabbedUI  the UI that controls the applet.
105     */
106    public void init(final AbstractTabbedUI tabbedUI) {
107
108        this.tabbedUI = tabbedUI;
109        this.tabbedUI.addPropertyChangeListener
110            (AbstractTabbedUI.JMENUBAR_PROPERTY, new MenuBarChangeListener());
111
112        final JPanel panel = new JPanel();
113        panel.setLayout(new BorderLayout());
114        panel.add(tabbedUI, BorderLayout.CENTER);
115        setContentPane(panel);
116        setJMenuBar(tabbedUI.getJMenuBar());
117    }
118
119}