src/QTStreamingApplet.java

/*
 
 File: QTStreamingApplet.java
 
 Abstract: Applet which loads a QuickTime movie from a network connection
 
 Version: 1.1
 
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 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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 */
 
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
 
import quicktime.*;
import quicktime.std.*;
import quicktime.io.QTFile;
import quicktime.app.view.*;
import quicktime.std.movies.*;
import quicktime.std.movies.media.*;
 
public class QTStreamingApplet extends Applet {
 
    private Vector urlTable;
    private TextField urlTextField;
    private PopupMenu pm;
    private QTComponent myQTCanvas;
    
    public void init () {
        try {
            if (QTSession.isInitialized() == false)
                QTSession.open();
            // set up a QTCanvas which will disply its content 
            // at its original size of smaller and centered in the space given
            // to the QTCanvas when the applet is layed out
            setLayout (new BorderLayout());
            urlTable = new Vector();
            add (bottomPanel(), "South");
                        
        } catch (QTException qtE) {
            //in this case the only QTException is in QTSession.open()
            throw new RuntimeException (qtE.getMessage());      
        }
    }   
    
    public void start () { 
    }
    
    public void stop () { 
            try{
        if (myQTCanvas != null)
            myQTCanvas.setMovie(null);
        } catch (QTException qtE) {
                //in this case the only QTException is in QTSession.open()
            throw new RuntimeException (qtE.getMessage());      
        }
    }
    
    public void destroy () {
        QTSession.close();
    }
        
        
    /**
     * creates drawable object from the URL the user has entered
     * or from the menu item chosen
     */
    private void createNewMovieFromURL(String selURL) throws QTException {
        String url = urlTextField.getText();    
                DataRef dRef = new DataRef(selURL);
                Movie mov = Movie.fromDataRef (dRef,StdQTConstants.newMovieActive);
                MovieController mc = new MovieController(mov);
                if (myQTCanvas == null) {
                    myQTCanvas = QTFactory.makeQTComponent(mc);
                    add((Component)myQTCanvas, "Center");
                }else {
                    myQTCanvas.setMovieController (mc);
                }
                // We have just added a component. 
                // so we must revalidate the Applet's Layout.
                validate();
    }
    
    public Component bottomPanel () {
        Panel row2 =  new Panel();
        row2.setLayout(new FlowLayout(FlowLayout.CENTER));
        row2.setBackground(Color.white);    
            
        urlTextField = new TextField ("rtsp://... Enter a URL to a remote movie", 40); //Enter URL to movie here
        urlTextField.setFont (new Font ("Dialog", Font.PLAIN, 10));
        urlTextField.setEditable (true);
        urlTextField.addActionListener (new ActionListener () {
            
            public void actionPerformed (ActionEvent ae) {
                    try {
                        createNewMovieFromURL(urlTextField.getText());
                    } catch (QTException e) {
                            //probably a non-fatal error that the Applet 
                            //should deal with more informatively
                        e.printStackTrace();
                    }
            }
        });
 
        row2.add(urlTextField);
        
        return row2;
    }
    
    //workaround for java 1.3 bug - throws IllegalStateException on quit
    public java.awt.im.InputContext getInputContext() {
        return null;
    }
 
}