guiinputhandler.java

著名的开源仿真软件yale

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2002, 2003
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License as 
 *  published by the Free Software Foundation; either version 2 of the
 *  License, or (at your option) any later version. 
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.gui;

import edu.udo.cs.yale.InputHandler;

import javax.swing.JDialog;
import javax.swing.JPasswordField;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.BorderFactory;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class GUIInputHandler implements InputHandler {

    public String inputPassword(String messageText) {
	final JDialog dialog = new JDialog(YaleGUI.getMainFrame(), "Authentication", true);
	JPanel contentPanel = new JPanel();

	contentPanel.setBorder(BorderFactory.createEmptyBorder(11,11,11,11));
	contentPanel.setLayout(new BorderLayout());
	contentPanel.add(new JLabel(messageText), BorderLayout.NORTH);
	JPasswordField passwordField = new JPasswordField();
	contentPanel.add(passwordField, BorderLayout.CENTER);
	JButton close = new JButton("Ok");
	close.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    dialog.dispose();
		}
	    });
	JPanel buttonPanel = new JPanel();
	buttonPanel.add(close);
	contentPanel.add(buttonPanel, BorderLayout.SOUTH);
	dialog.getContentPane().add(contentPanel);

	dialog.pack();
	dialog.setLocationRelativeTo(YaleGUI.getMainFrame());
	dialog.show();
	return new String(passwordField.getPassword());
    }

}