/* * 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. */ /*  * Java SE 6 version. */import java.applet.*;import javax.swing.*;import java.awt.FlowLayout;import java.awt.Color;import java.awt.event.*;public class SoundExample extends JApplet 			  implements ActionListener {    private SoundList soundList;    private String onceFile = "bark.au";    private String loopFile = "train.au";    private AudioClip onceClip;    private AudioClip loopClip;    private static String PLAY_ONCE_CMD = "playOnce";    private static String START_LOOP_CMD = "startLoop";    private static String STOP_LOOP_CMD = "stopLoop";    private static String RELOAD_CMD = "reload";    private JButton playOnce;    private JButton startLoop;    private JButton stopLoop;    private JButton reload;    private boolean looping = false;    public void init() {        //Execute a job on the event-dispatching thread:        //creating this applet's GUI.        try {            SwingUtilities.invokeAndWait(new Runnable() {                public void run() {                    createGUI();                }            });        } catch (Exception e) {            System.err.println("createGUI didn't successfully complete");        }    }    private void createGUI() {        JPanel contentPane = new JPanel(new FlowLayout());        contentPane.setBorder(BorderFactory.createCompoundBorder(                                    BorderFactory.createLineBorder(Color.BLACK),                                    BorderFactory.createEmptyBorder(10,10,10,10)));        setContentPane(contentPane);                playOnce = new JButton("Bark!");        playOnce.setActionCommand(PLAY_ONCE_CMD);	playOnce.addActionListener(this);        add(playOnce);        startLoop = new JButton("Start sound loop");        startLoop.setActionCommand(START_LOOP_CMD);        stopLoop = new JButton("Stop sound loop");        stopLoop.setActionCommand(STOP_LOOP_CMD);        stopLoop.setEnabled(false);	startLoop.addActionListener(this);        add(startLoop);	stopLoop.addActionListener(this);        add(stopLoop);        reload = new JButton("Reload sounds");        reload.setActionCommand(RELOAD_CMD);	reload.addActionListener(this);        add(reload);        startLoadingSounds();    }    void startLoadingSounds() {        //Start asynchronous sound loading.        soundList = new SoundList(this, getCodeBase());        soundList.startLoading(loopFile);        soundList.startLoading(onceFile);   }    public void stop() {        if (onceClip != null) {            onceClip.stop();        //Cut short the one-time sound.        }        if (looping && loopClip != null) {            loopClip.stop();    //Stop the sound loop.        }    }        public void start() {        if (looping && loopClip!= null) {            loopClip.loop();    //Restart the sound loop.        }    }        public void actionPerformed(ActionEvent event) {        String cmd = event.getActionCommand();                //PLAY JButton        if (PLAY_ONCE_CMD.equals(cmd)) {            if (onceClip == null) {                //Try to get the AudioClip.                onceClip = soundList.getClip(onceFile);            }            if (onceClip != null) {  //If the sound is loaded:                onceClip.play();     //Play it once.                showStatus("Playing sound " + onceFile + ".");            } else {                showStatus("Sound " + onceFile + " not loaded yet.");            }	    return;        }        //START LOOP JButton        if (START_LOOP_CMD.equals(cmd)) {            if (loopClip == null) {                //Try to get the AudioClip.                loopClip = soundList.getClip(loopFile);            }            if (loopClip != null) {  //If the sound is loaded:                looping = true;                loopClip.loop();     //Start the sound loop.                stopLoop.setEnabled(true);   //Enable stop JButton.                startLoop.setEnabled(false); //Disable start JButton.                showStatus("Playing sound " + loopFile + " continuously.");            } else {                showStatus("Sound " + loopFile + " not loaded yet.");            }            return;        }        //STOP LOOP JButton        if (STOP_LOOP_CMD.equals(cmd)) {            if (looping) {                looping = false;                loopClip.stop();    //Stop the sound loop.                startLoop.setEnabled(true); //Enable start JButton.                stopLoop.setEnabled(false); //Disable stop JButton.            }            showStatus("Stopped playing sound " + loopFile + ".");            return;        }        //RELOAD JButton        if (RELOAD_CMD.equals(cmd)) {            if (looping) {          //Stop the sound loop.                looping = false;                loopClip.stop();                startLoop.setEnabled(true); //Enable start JButton.                stopLoop.setEnabled(false); //Disable stop JButton.            }            loopClip = null;        //Reset AudioClip to null.            onceClip = null;        //Reset AudioClip to null.            startLoadingSounds();            showStatus("Reloading all sounds.");            return;        }    }        public void destroy() {        //Execute a job on the event-dispatching thread:        //destroying this applet's GUI.        try {            SwingUtilities.invokeAndWait(new Runnable() {                public void run() {                    destroyGUI();                }            });        } catch (Exception e) {            System.err.println("createGUI didn't successfully complete");        }    }    private void destroyGUI() {        looping = false;        loopClip = null;        onceClip = null;        getContentPane().removeAll();    }    }