/*
 *  File:  TextFieldTest.java
 *
 *  Create an editable text field (i.e., a one-line text area)
 *
 *  Copyright:  Northeast Parallel Architectures Center
 *  
 */

import java.applet.Applet;
import java.awt.Label;
import java.awt.TextField;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class TextFieldTest extends Applet {

// label1 and label2 are labels for the two textfields username and password
// when "enter" is pressed in either textfield, display the text in label3

  Label label1, label2, label3;
  TextField username, password;
  private Font f = new Font ("Dialog", Font.BOLD, 30);

  public void init() {
// this example shows how to use a separate class as the event listener
    TextFieldHandler handler = new TextFieldHandler( this );
    
    setBackground( Color.white );
    setFont (f);
    
    label1 = new Label( "Username:" );
    
    username = new TextField( 20 );
    username.addActionListener( handler );
    
    label2 = new Label( "Password:" );
    
    password = new TextField( 20 );
    password.setEchoChar( '*' );
    password.addActionListener( handler );

    // this layout manager uses intial text to size the label
    label3 = new Label ("                                                ");
    
    add( label1 ); add( username );
    add( label2 ); add( password );
    add( label3 );
  }

}

class TextFieldHandler implements ActionListener {

  private TextFieldTest applet;
  
  public TextFieldHandler( TextFieldTest a ) { applet = a; }
  
  public void actionPerformed( ActionEvent event ) {
    String text;

    // respond to text enter for the two textfields by showing in label3
    if ( applet.username == event.getSource() )
	{ text = applet.username.getText();
          applet.label3.setText("Your username: " + text);
        }
    if ( applet.password == event.getSource() )
	{ text = applet.password.getText();
          applet.label3.setText("Your password: " + text);

	  // you can also display text in the browser status bar
          applet.showStatus( "Text: " + text );
        }
  }
}