Here you can find the source of adaptEventToDescendent(MouseEvent e, JComponent descendentTarget)
public static MouseEvent adaptEventToDescendent(MouseEvent e, JComponent descendentTarget)
//package com.java2s; /*//from ww w . jav a 2 s. co m * Copyright (C) 2006-2011 by Olivier Chafik (http://ochafik.com) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ import java.awt.Component; import java.awt.Point; import java.awt.Rectangle; import java.awt.event.MouseEvent; import javax.swing.JComponent; public class Main { public static MouseEvent adaptEventToDescendent(MouseEvent e, JComponent descendentTarget) { Point trans = new Point(); Component source = e.getComponent(); Component current = descendentTarget; while (current != source) { Rectangle b = current.getBounds(); trans.x += b.x; trans.y += b.y; current = current.getParent(); } Point point = e.getPoint(); return new MouseEvent(descendentTarget, e.getID(), e.getWhen(), e.getModifiers(), point.x + trans.x, point.y + trans.y, e.getClickCount(), e.isPopupTrigger(), e.getButton()); } }