// Simplified from Sun's ButtonDemo.java.
// 5/28/04

import javax.swing.AbstractButton;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.ImageIcon;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

/* 
 * ButtonDemo.java is a 1.4 application that requires the following files:
 *   images/right.gif
 *   images/middle.gif
 *   images/left.gif
 */
public class ButtonDemo extends JPanel
                        implements ActionListener
{
    protected int greetingCount;
    protected JButton b1, b2;

    public ButtonDemo()
    {
        greetingCount = 0;

        b1 = new JButton( "Say Hi" );
        b1.setActionCommand( "hi" );

        b2 = new JButton( "Cancel" );
        b2.setActionCommand( "cancel" );

        b1.addActionListener(this);
        b2.addActionListener(this);

        b1.setToolTipText( "Click this button for a greeting." );
        b2.setToolTipText( "Click this button to quit." );

        //Add Components to this container, using the default FlowLayout.
        add( b1 );
        add( b2 );
    }

    public void actionPerformed( ActionEvent e )
    {
        if( "hi".equals( e.getActionCommand() ) )
        {
            greetingCount++;
            System.out.println( "Hi " + greetingCount );
        }
        else
        {
            System.exit( 1 );
        }
    }


    /**
     * Create the GUI and show it.  For thread safety, 
     * this method should be invoked from the 
     * event-dispatching thread.
     */
    private static void createAndShowGUI()
    {
        //Make sure we have nice window decorations.
        JFrame.setDefaultLookAndFeelDecorated( true );

        //Create and set up the window.
        JFrame frame = new JFrame( "ButtonDemo" );
        frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );

        //Create and set up the content pane.
        ButtonDemo newContentPane = new ButtonDemo();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main( String[] args )
    {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI(); 
            }
        });
    }
}