import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Main extends JFrame implements ActionListener { 
    // Remember them in ivars for use in callback
    private MyModel myModel; 
    private MyCanvas canvas; 

    public static void main (String [] args) {
	java.awt.EventQueue.invokeLater (new Runnable() {
            public void run() {
		new Main ();
            }
        });
    }

    public Main () {
	// Window setup
	setLocation (100, 100);
	setSize (300, 300);
	setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
	Container content = getContentPane();

	// Holds our data
	myModel = new MyModel ("Waiting for menu item"); 

	// Put canvas in our window
	canvas = new MyCanvas (myModel); 
	content.add (canvas);

	// Add a menu to our window
	JMenu menu = new JMenu ("File"); 
	
	// And its items
	JMenuItem item = new JMenuItem ("Open"); 
	menu.add (item); 
	item.addActionListener (this); 

	item = new JMenuItem ("Save"); 
	menu.add (item); 
	item.addActionListener (this); 

	item = new JMenuItem ("Quit"); 
	menu.add (item); 
	item.addActionListener (this); 

	// Add menu to a menu bar
	JMenuBar menuBar = new JMenuBar (); 
	menuBar.add (menu); 

	// Another menu
	JMenu menu2 = new JMenu ("Edit"); 

	// Some items for menu2
	item = new JMenuItem ("Cut"); 
	menu2.add (item); 
	item.addActionListener (this); 

	item = new JMenuItem ("Copy"); 
	menu2.add (item); 
	item.addActionListener (this); 

	item = new JMenuItem ("Paste"); 
	menu2.add (item); 
	item.addActionListener (this); 

	// Add menu2 to the menu bar
	menuBar.add (menu2); 

	// Install menu bar in our window
	setJMenuBar (menuBar); 

	setVisible (true);
    }

    // ActionListener method for all the pull-down menu items
	public void actionPerformed (ActionEvent e) { 
	if (e.getActionCommand().equals ("Quit")) { 
	    System.exit (0); 
	}

	else {
	    // Change the text
	    myModel.setText ("Menu item: " + e.getActionCommand()); 

	    // Then trigger a redraw
	    canvas.repaint (); 
	}
    }
}