Java JFrame Parent centreOverFrame(JInternalFrame win, JInternalFrame parent)

Description

Centre the internal frame win over the internal frame parent.

License

GNU General Public License

Parameter

Parameter	Description
win	The JInternalFrame to position.
parent	The reference JInternalFrame.

Declaration

public static void centreOverFrame(JInternalFrame win, JInternalFrame parent) 

Method Source Code

//package com.java2s;
/*/*from   w ww . ja  v  a2s  .  c  o m*/
 * Copyright (C) 2002-2014 FlyMine
 *
 * This code may be freely distributed and modified under the
 * terms of the GNU Lesser General Public Licence.  This should
 * be distributed with the code.  See the LICENSE file for more
 * information or http://www.gnu.org/copyleft/lesser.html.
 *
 */

import java.awt.Dimension;
import java.awt.Rectangle;

import javax.swing.JInternalFrame;

public class Main {
    /**
     * Centre the internal frame <code>win</code> over the internal
     * frame <code>parent</code>.
     * 
     * @param win The JInternalFrame to position.
     * @param parent The reference JInternalFrame.
     */
    public static void centreOverFrame(JInternalFrame win, JInternalFrame parent) {
        Rectangle parentBounds = parent.getBounds();
        Dimension windowSize = win.getSize();

        int x = (parentBounds.width - windowSize.width) / 2;
        int y = (parentBounds.height - windowSize.height) / 2;

        x = Math.max(0, x + parentBounds.x);
        y = Math.max(0, y + parentBounds.y);

        win.setLocation(x, y);
    }
}

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