aboutbox.java

PIY(Program It Yourself)是一个基于Java的应用程序开发环境

package piy;

import javax.swing.*;

/**
* The about box that is used in PIY.  
* @author David Vivash
* @version 1.0, 29/04/01
*/
public class AboutBox {
	private JOptionPane pane = null;

	private static Object message = new String[] {
		"PIY-II was initially written in 2000/2001",
		"by David Vivash, and is now being",
		"developed as an open source project."
		};

	private static AboutBox instance = null; 

	private AboutBox() { 
		pane = new JOptionPane(message, JOptionPane.PLAIN_MESSAGE, JOptionPane.DEFAULT_OPTION, new ImageIcon("piy/images/about.gif"));
	}

	public static AboutBox getInstance() {
		return (instance == null) ? instance = new AboutBox() :
									instance;
	}

	/**
	* Show the about box.  This method blocks input to other windows until the
	* user clicks "Okay".
	*/
	public void show() {
		JDialog dialog = pane.createDialog(null, "PIY v" + PIY.version);
		dialog.setResizable(false);
		dialog.show();
	}

}