Centers a window on screen. - Java Swing

Java examples for Swing:Screen

  1. HOME
  2. Java
  3. Swing
  4. Screen

Description

Centers a window on screen.

Demo Code

/*// w  w w . j  av  a  2 s.  com
 *  JMule - Java file sharing client
 *  Copyright (C) 2007-2008 JMule team ( jmule@jmule.org / http://jmule.org )
 *
 *  Any parts of this program derived from other projects, or contributed
 *  by third-party developers are copyrighted by their respective authors.
 *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */
//package com.java2s;

import java.awt.Dimension;

import java.awt.Toolkit;
import java.awt.Window;

public class Main {
    /**
     * Centers a window on screen.
     * <p>
     * @param w     The window to center.
     */
    public static void centerOnScreen(Window w) {
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension splashSize = w.getPreferredSize();
        w.setLocation(screenSize.width / 2 - (splashSize.width / 2),
                screenSize.height / 2 - (splashSize.height / 2));
    }
}

Related Tutorials