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/*
* ClipPlayerApplet.java
*/
/*
* Copyright (c) 1999 by Matthias Pfisterer <Matthias.Pfisterer@gmx.de>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URL;
import java.net.MalformedURLException;
import javax.media.sound.sampled.AudioFormat;
import javax.media.sound.sampled.AudioInputStream;
import javax.media.sound.sampled.AudioSystem;
import javax.media.sound.sampled.Clip;
import javax.media.sound.sampled.DataLine;
import javax.media.sound.sampled.LineEvent;
import javax.media.sound.sampled.LineListener;
import javax.media.sound.sampled.LineUnavailableException;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JPanel;
public class ClipPlayerApplet
extends JApplet
implements LineListener
{
private AudioInputStream m_audioInputStream;
private AudioFormat m_format;
private Clip m_clip;
private JPanel m_panel;
private JButton m_loopButton;
private JButton m_stopButton;
public ClipPlayerApplet()
{
}
public void init()
{
System.out.println("ClipPlayerApplet.init(): context class loader: " + Thread.currentThread().getContextClassLoader());
System.out.println("ClipPlayerApplet.init(): system class loader: " + ClassLoader.getSystemClassLoader());
String strClipURL = getParameter("clipurl");
System.out.println("URL str: " + strClipURL);
URL clipURL = null;
try
{
clipURL = new URL(getDocumentBase(), strClipURL);
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
System.out.println("URL: " + clipURL);
loadClip(clipURL);
JPanel panel = new JPanel();
this.getContentPane().add(panel);
// TODO: label showing the url
m_loopButton = new JButton("Loop");
m_loopButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
m_clip.loop(Clip.LOOP_CONTINUOUSLY);
}
});
panel.add(m_loopButton);
m_stopButton = new JButton("Stop");
m_stopButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
m_clip.loop(0);
}
});
m_stopButton.setEnabled(false);
panel.add(m_stopButton);
}
public void destroy()
{
if (m_clip != null)
{
m_clip.close();
}
}
private void loadClip(URL clipURL)
{
System.out.println("ClipPlayerApplet.loadClip(): setting another class loader");
ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(ClassLoader.getSystemClassLoader());
try
{
m_audioInputStream = AudioSystem.getAudioInputStream(clipURL);
}
catch (Exception e)
{
e.printStackTrace();
}
if (m_audioInputStream != null)
{
m_format = m_audioInputStream.getFormat();
DataLine.Info info = new DataLine.Info(Clip.class, null, null, null, m_format, AudioSystem.NOT_SPECIFIED);
try
{
m_clip = (Clip) AudioSystem.getLine(info);
m_clip.addLineListener(this);
m_clip.open(m_audioInputStream);
}
catch (LineUnavailableException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
// m_clip.loop(nLoopCount);
}
else
{
// TODO: popup (also for other error conditions)
System.out.println("ClipPlayerApplet.<init>(): can't get data from URL " + clipURL);
}
Thread.currentThread().setContextClassLoader(originalClassLoader);
System.out.println("ClipPlayerApplet.loadClip(): restored the original class loader");
}
public void update(LineEvent event)
{
System.out.println("ClipPlayerApplet.update(): received event: " + event);
if (event.getType().equals(LineEvent.START))
{
m_loopButton.setEnabled(false);
m_stopButton.setEnabled(true);
}
if (event.getType().equals(LineEvent.STOP))
{
m_loopButton.setEnabled(true);
m_stopButton.setEnabled(false);
}
}
}
/*** ClipPlayerApplet.java ***/
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