Here you can find the source of locateWindow(JFrame parent, Dimension mySize, Dimension offset, JDialog me)
public static void locateWindow(JFrame parent, Dimension mySize, Dimension offset, JDialog me)
//package com.java2s; /*//from w w w . j a v a 2 s.c o m ** Copyright (C) 2003-2012 Institute for Systems Biology ** Seattle, Washington, USA. ** ** This library is free software; you can redistribute it and/or ** modify it under the terms of the GNU Lesser General Public ** License as published by the Free Software Foundation; either ** version 2.1 of the License, or (at your option) any later version. ** ** This library 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 ** Lesser General Public License for more details. ** ** You should have received a copy of the GNU Lesser General Public ** License along with this library; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ import java.awt.Dimension; import java.awt.Point; import java.awt.Toolkit; import javax.swing.JFrame; import javax.swing.JDialog; public class Main { /*************************************************************************** ** ** A helper to position a dialog */ public static void locateWindow(JFrame parent, Dimension mySize, Dimension offset, JDialog me) { Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); Dimension parSize = parent.getSize(); Point p = parent.getLocation(); int rightX = p.x + parSize.width; if (rightX > screen.width) { rightX = screen.width; } int topY = p.y; Point myUL = new Point(rightX - mySize.width - offset.width, topY + offset.height); me.setLocation(myUL); return; } }