ExitAction.java

//ShowTree Tree Visualization System
//Copyright (C) 2009 Yuvi Masory
//
//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, version 3 only.
//
//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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

package display.actions;

import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;

import javax.swing.AbstractAction;
import javax.swing.Icon;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;

import display.Start;
import display.components.TreeFrame;

/*
 * Prompts the user whether they mean to exit the program, and then exits if desired.
 */
public class ExitAction extends AbstractAction {

	private static final long serialVersionUID = 1L;

	public ExitAction(String str, String toolTip, Icon icon) {
		super(str, icon);
		putValue(SHORT_DESCRIPTION, toolTip);
		putValue(ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_X, Start.getCommandKey()));
		putValue(MNEMONIC_KEY, new Integer(KeyEvent.VK_X));
	}

	public void actionPerformed(ActionEvent ae) {
		int response = JOptionPane.showConfirmDialog (
				TreeFrame.getInstance(),
				"Exit Tree Visualizer?",
				"Select an Option",
				JOptionPane.YES_NO_OPTION);
		switch(response) {
		case JOptionPane.YES_OPTION:
			System.exit(0);
			break;
		case JOptionPane.NO_OPTION:
			break;
		case JOptionPane.CLOSED_OPTION:
			break;
		}
	}
}