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    
043    package org.jfree.ui.tabbedui;
044    
045    import java.awt.BorderLayout;
046    import java.beans.PropertyChangeEvent;
047    import java.beans.PropertyChangeListener;
048    
049    import javax.swing.JApplet;
050    import javax.swing.JPanel;
051    
052    /**
053     * An applet implementation that uses a tabbed GUI as backend. 
054     *
055     * @author Thomas Morgner
056     */
057    public 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    }