/*
 * Gary Cornell and Cay S. Horstmann, Core Java (Book/CD-ROM)
 * Published By SunSoft Press/Prentice-Hall
 * Copyright (C) 1996 Sun Microsystems Inc.
 * All Rights Reserved. ISBN 0-13-565755-5
 *
 * Permission to use, copy, modify, and distribute this 
 * software and its documentation for NON-COMMERCIAL purposes
 * and without fee is hereby granted provided that this 
 * copyright notice appears in all copies. 
 * 
 * THE AUTHORS AND PUBLISHER MAKE NO REPRESENTATIONS OR 
 * WARRANTIES ABOUT THE SUITABILITY OF THE SOFTWARE, EITHER 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE AUTHORS
 * AND PUBLISHER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED 
 * BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING 
 * THIS SOFTWARE OR ITS DERIVATIVES.
 */
 
/**
 * @version 1.00 07 Feb 1996 
 * @author Cay Horstmann
 */

import java.awt.*;

public class CheckboxGroupTest extends Frame
{  public CheckboxGroupTest()
   {  setTitle("CheckboxGroupTest");
      Panel p = new Panel();
      p.setLayout(new FlowLayout());
      CheckboxGroup g = new CheckboxGroup();
      p.add(small = new Checkbox("Small", g, false));
      p.add(medium = new Checkbox("Medium", g, true));    
      p.add(large = new Checkbox("Large", g, false));    
      p.add(extraLarge = 
         new Checkbox("Extra large", g, false));
      add("South", p);
      fox = new FoxCanvas();
      add("Center", fox);
   }
   
   public boolean handleEvent(Event evt)
   {  if (evt.id == Event.WINDOW_DESTROY) System.exit(0);
      return super.handleEvent(evt);
   }
   
   public boolean action(Event evt, Object arg)
   {  if (evt.target.equals(small))
         fox.setSize(8);
      else if (evt.target.equals(medium))
         fox.setSize(10);
      else if (evt.target.equals(large))
         fox.setSize(14);
      else if (evt.target.equals(extraLarge))
         fox.setSize(18);
      else return super.action(evt, arg);
      return true;
   }
   public static void main(String[] args)
   {  Frame f = new CheckboxGroupTest();
      f.resize(300, 200);
      f.show();  
   }
   
   private FoxCanvas fox;
   private Checkbox small;
   private Checkbox medium;
   private Checkbox large;
   private Checkbox extraLarge;
  
}

class FoxCanvas extends Canvas
{  public FoxCanvas() 
   {  setSize(10); 
   }
   
   public void setSize(int p)
   {  setFont(new Font("Helvetica", Font.PLAIN, p));
      repaint();
   }
   
   public void paint(Graphics g)
   {  g.drawString
    ("The quick brown fox jumps over the lazy dog.", 0, 50);
   }
}