/*

 * QuickTime for Java SDK Sample Code

 *

 * Usage subject to restrictions in SDK License Agreement

 * Copyright: © 2000 Apple Computer, Inc.

 */

import java.awt.*;

import java.awt.event.*;

import quicktime.*;

import quicktime.io.QTFile;

import quicktime.streaming.*;

/* This example demonstrates how to use the QuickTime 5 broadcasting API to broadcast audio without

   the use of a QTCanvas object. This makes it useful in an AWT or swing context */

public class AudioStreamer extends Frame {  

    /* Constructor- loads an sdp file, creates and starts the broadcast */

    public AudioStreamer( String s ) {

        super( s );

        setResizable(true);

        setBounds (0,0,400,200);

        setLayout (new FlowLayout());

        startBtn = new Button ("Start Broadcast");

        startBtn.setEnabled (false);

        configureBtn = new Button( "Configure Broadcast" );

        add(startBtn);

        add(configureBtn);

        ButtonListener listener = new ButtonListener();

        startBtn.addActionListener (listener);

        configureBtn.addActionListener (listener);

        theDialog = new FileDialog(this, "Choose an SDP File for the Broadcast", FileDialog.LOAD);

        addWindowListener( new WindowAdapter()      

        {

            public void windowClosing( WindowEvent we )

            {

                broadcaster.stopBroadcast();

                dispose();

                QTSession.close();                                  

            }

            public void windowClosed( WindowEvent we )

            {

                System.exit( 0 );       

            }

        });

    }

    /* main entry point of application */

    public static void main (String[] args) {

        try {

            QTSession.open();

            AudioStreamer app = new AudioStreamer( "Audio Streamer Test" );

            app.show();

            app.toFront();

        }

        catch (Exception e) {

            QTSession.close();  

            e.printStackTrace();

        }

    }

    /** Handles the start/stop and configure broadcast buttons */   

    public class ButtonListener implements ActionListener {

        public void actionPerformed (ActionEvent e) {   

            if (e.getSource() == startBtn)              // stop button

                if ( playing ) {

                    broadcaster.stopBroadcast();

                    startBtn.setLabel( "Start Broadcast" );             

                }                                       // start button

                else {

                    broadcaster.startBroadcast();

                    startBtn.setLabel( "Stop Broadcast" );

                }

            else if (e.getSource() == configureBtn) {   // configure button

                startBtn.setLabel( "Start Broadcast" );

                startBtn.setEnabled (false);

                theDialog.show();

                if (theDialog.getFile() == null) {

                    System.out.println ("Need to select valid .sdp file. Quitting...");

                    QTSession.close();

                    System.exit(1);

                }

                try {

                    broadcaster = new Broadcaster( new QTFile( theDialog.getDirectory() + theDialog.getFile() ));

                    broadcaster.prepareBroadcast();

                } catch (QTException ex) {

                    ex.printStackTrace();

                }

                startBtn.setEnabled (true);

            }

        }

    }

    /* --- private data members --- */

    private boolean playing = false;

    private FileDialog  theDialog;

    private Broadcaster broadcaster;

    private Button startBtn, configureBtn;

}