/***************
 *
 *       Copyright (c) AT&T DARICS, 1996 -- All Rights Reserved
 *
 *      PROJECT:        JavaWorld
 *      MODULE:         Tips & Tricks
 *      FILE:           MutuallyExclusiveFrame.java
 *
 *      AUTHOR:         Andrzej Porebski, May 10, 1997
 *
 *      DESCRIPTION:
 *              This file implements the Frame that contains a single
 *              MutuallyExclusiveMenu and a label that show which
 *              which option in the menu is currently selected
 *
 ************/

import  java.applet.*;
import  java.awt.*;
import  java.awt.event.*;

public class MutuallyExclusiveFrame extends Frame implements ItemListener {

	Label label;

	public MutuallyExclusiveFrame(String title) {

		super(title);
		add("Center",label = 
			new Label("No option is currently active",Label.RIGHT));

        // create MenuBar
        MenuBar mb = new MenuBar();
 
        // create MutuallyExclusiveMenu
        MutuallyExclusiveMenu menu = 
				new MutuallyExclusiveMenu("MutuallyExclusiveMenu");
 
        // create a couple of CheckboxMenuItems
        CheckboxMenuItem item1 = new CheckboxMenuItem("option 1");
        CheckboxMenuItem item2 = new CheckboxMenuItem("option 2");
        CheckboxMenuItem item3 = new CheckboxMenuItem("option 3");
        CheckboxMenuItem item4 = new CheckboxMenuItem("option 4");
 
        // Add these item to our MutuallyExclusiveMenu object
        menu.add(item1);
        menu.add(item2);
        menu.add(item3);
        menu.add(item4);
 
        // register ourselves to receive event notifications from the
        // MutuallyExclusiveMenu object - in order to do so we must also
		// implement ItemListener interface.
        menu.addItemListener(this);
 
        // add our menu bar to the Frame
        mb.add(menu);
 
        // finalize the menu bar
        setMenuBar(mb);
	}

	public void itemStateChanged(ItemEvent e) {
		label.setText(e.getItem()+" is now active.");
	}
}