How tp detach a Frame from the Main Application ?

[Pratik Khetia]

Hi Guys,
I've seen many examples of applets on the net that gives a button on the web-page (detach) which separates the applet window from the web-pagae.
I want to have the similar functionalities for my application where I am using JSplitPane right now. But instead of that I want to use attach/detach sort of functionality in that ...
Any help would be greatly appriciated !
thanks
Pratik

[Paul Stevens]

You could create a tiny applet that opens a JFrame.

[Nathan Pruett]

Here's some code that illustrates what you need to do:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
public class RippedSplitPane extends JFrame
{
    private JSplitPane splitPane;
    private JButton ripLeft, ripRight;
 
    public RippedSplitPane()
    {
        splitPane = new JSplitPane();
        JPanel p1 = new JPanel();
        Image i = Toolkit.getDefaultToolkit().getImage( "Washu.gif" );
        ImageIcon ii = new ImageIcon( i );
        JLabel l = new JLabel( ii );
        p1.add( l );
 
        JPanel p2 = new JPanel();
        p2.setLayout( new BorderLayout() );
        JTextArea textArea = new JTextArea();
        textArea.append( "Write Text Here : \n" );
        JScrollPane sp = new JScrollPane( textArea );
        p2.add( sp, BorderLayout.CENTER  );
 
        splitPane.setLeftComponent( p1 );
        splitPane.setRightComponent( p2 );
 
        JPanel buttonPanel = new JPanel();
        ripLeft = new JButton( "Rip Off Left Panel" );
        ripRight = new JButton( "Rip Off Right Panel" );
        ripLeft.setActionCommand( "LEFT" );
        ripRight.setActionCommand( "RIGHT" );
        FrameSetter fs = new FrameSetter();
        ripLeft.addActionListener( fs );
        ripRight.addActionListener( fs );
        buttonPanel.add( ripLeft );
        buttonPanel.add( ripRight );
 
        getContentPane().add( splitPane, BorderLayout.CENTER );
        getContentPane().add( buttonPanel, BorderLayout.SOUTH );
    }
 
    public static void main( String[] args )
    {
        JFrame frame = new RippedSplitPane();
        frame.pack();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.setVisible( true );
    }
 
    private class FrameSetter implements ActionListener
    {
        public void actionPerformed( ActionEvent event )
        {
            String side = event.getActionCommand();
            System.out.println( side );
 
            Component c = null;
 
            if( side.equals( "LEFT" ) )
            {
                c = RippedSplitPane.this.splitPane.getLeftComponent();
                RippedSplitPane.this.splitPane.setLeftComponent( null );
            }
            else if( side.equals( "RIGHT" ) )
            {
                c = RippedSplitPane.this.splitPane.getRightComponent();
                RippedSplitPane.this.splitPane.setRightComponent( null );
            }
 
            RippedSplitPane.this.validate();
 
            JDialog dialog = new JDialog( RippedSplitPane.this, side, false );
            dialog.getContentPane().setLayout( new BorderLayout() );
            dialog.getContentPane().add( c, BorderLayout.CENTER );
            dialog.addWindowListener( new PanelSetter() );
            dialog.pack();
            dialog.setVisible( true );
        }
    }
 
    private class PanelSetter extends WindowAdapter
    {
        public void windowClosing( WindowEvent event )
        {
            JDialog source = ( ( JDialog ) event.getSource() );
            String side = source.getTitle();
            System.out.println( side );
            Component c = source.getComponents()[ 0 ];
 
            if( side.equals( "LEFT" ) )
            {
                RippedSplitPane.this.splitPane.setLeftComponent( c );
            }
            else if( side.equals( "RIGHT" ) )
            {
                RippedSplitPane.this.splitPane.setRightComponent( c );
            }
 
            RippedSplitPane.this.validate();
            source.dispose();
        }
    }
}

-Nate