/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * *   - Redistributions of source code must retain the above copyright *     notice, this list of conditions and the following disclaimer. * *   - Redistributions in binary form must reproduce the above copyright *     notice, this list of conditions and the following disclaimer in the *     documentation and/or other materials provided with the distribution. * *   - Neither the name of Sun Microsystems nor the names of its *     contributors may be used to endorse or promote products derived *     from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package misc;/* * TrackFocusDemo.java requires the following files: *     Picture.java *     images/Maya.jpg *     images/Anya.jpg *     images/Laine.jpg *     images/Cosmo.jpg *     images/Adele.jpg *     images/Alexi.jpg */import javax.swing.*;import java.beans.*; //Property change stuffimport java.awt.*;import java.awt.event.*;public class TrackFocusDemo extends JPanel {    Picture pic1, pic2, pic3, pic4, pic5, pic6;    JLabel info;    static String mayaString = "Maya";    static String anyaString = "Anya";    static String laineString = "Laine";    static String cosmoString = "Cosmo";    static String adeleString = "Adele";    static String alexiString = "Alexi";    String[] comments = { "Oops. What is this?",                          "This is Maya",                          "This is Anya",                          "This is Laine",                          "This is Cosmo",                          "This is Adele",                          "This is Alexi" };    public TrackFocusDemo() {        super(new BorderLayout());        JPanel mugshots = new JPanel(new GridLayout(2,3));        pic1 = new Picture(createImageIcon("images/" +                    mayaString + ".jpg", mayaString).getImage());        pic1.setName("1");        mugshots.add(pic1);        pic2 = new Picture(createImageIcon("images/" +                    anyaString + ".jpg", anyaString).getImage());        pic2.setName("2");        mugshots.add(pic2);        pic3 = new Picture(createImageIcon("images/" +                    laineString + ".jpg", laineString).getImage());        pic3.setName("3");        mugshots.add(pic3);        pic4 = new Picture(createImageIcon("images/" +                    cosmoString + ".jpg", cosmoString).getImage());        pic4.setName("4");        mugshots.add(pic4);        pic5 = new Picture(createImageIcon("images/" +                    adeleString + ".jpg", adeleString).getImage());        pic5.setName("5");        mugshots.add(pic5);        pic6 = new Picture(createImageIcon("images/" +                    alexiString + ".jpg", alexiString).getImage());        pic6.setName("6");        mugshots.add(pic6);        info = new JLabel("Nothing selected");        setPreferredSize(new Dimension(450, 350));        add(mugshots, BorderLayout.CENTER);        add(info, BorderLayout.PAGE_END);        setBorder(BorderFactory.createEmptyBorder(20,20,20,20));        KeyboardFocusManager focusManager =            KeyboardFocusManager.getCurrentKeyboardFocusManager();        focusManager.addPropertyChangeListener(            new PropertyChangeListener() {                public void propertyChange(PropertyChangeEvent e) {                    String prop = e.getPropertyName();                    if (("focusOwner".equals(prop)) &&                          ((e.getNewValue()) instanceof Picture)) {                        Component comp = (Component)e.getNewValue();                        String name = comp.getName();                        Integer num = new Integer(name);                        int index = num.intValue();                        if (index < 0 || index > comments.length) {                            index = 0;                        }                        info.setText(comments[index]);                    }                }            }        );    }    /** Returns an ImageIcon, or null if the path was invalid. */    protected static ImageIcon createImageIcon(String path,                                               String description) {        java.net.URL imageURL = TrackFocusDemo.class.getResource(path);        if (imageURL == null) {            System.err.println("Resource not found: "                               + path);            return null;        } else {            return new ImageIcon(imageURL, description);        }    }    /**     * Create the GUI and show it.  For thread safety,     * this method should be invoked from the     * event-dispatching thread.     */    private static void createAndShowGUI() {        //Create and set up the window.        JFrame frame = new JFrame("TrackFocusDemo");        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        JComponent newContentPane = new TrackFocusDemo();        newContentPane.setOpaque(true); //content panes must be opaque        frame.setContentPane(newContentPane);        //Display the window.        frame.pack();        frame.setVisible(true);    }    public static void main(String[] args) {	/* Use an appropriate Look and Feel */        try {            //UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");            //UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");            UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");        } catch (UnsupportedLookAndFeelException ex) {            ex.printStackTrace();        } catch (IllegalAccessException ex) {            ex.printStackTrace();        } catch (InstantiationException ex) {            ex.printStackTrace();        } catch (ClassNotFoundException ex) {            ex.printStackTrace();        }        /* Turn off metal's use of bold fonts */        UIManager.put("swing.boldMetal", Boolean.FALSE);	    	            //Schedule a job for the event-dispatching thread:        //creating and showing this application's GUI.        javax.swing.SwingUtilities.invokeLater(new Runnable() {            public void run() {                createAndShowGUI();            }        });    }}