/*
 * 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 TextEditTest extends Frame
{  public TextEditTest()
   {  setTitle("TextEditTest");
      Panel p = new Panel();
      p.setLayout(new FlowLayout());
      p.add(new Button("Replace"));
      from = new TextField(10);
      p.add(from);
      p.add(new Label("with"));
      to = new TextField(10);
      p.add(to);
    
      add("South", p);
      ta = new TextArea(8, 40);
      add("Center", ta);
   }
   
   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 (arg.equals("Replace"))
      {  String f = from.getText();
         int n = ta.getText().indexOf(f);
         if (n >= 0 && f.length() > 0)
            ta.replaceText(to.getText(), n, n + f.length());
      }
      else return super.action(evt, arg);
      return true;
   }
   
   public static void main(String[] args)
   {  Frame f = new TextEditTest();
      f.resize(300, 200);
      f.show();  
   }
   
   private TextArea ta;
   private TextField from, to;
      
   
}