001/* 002 * $Id: RepaintManagerX.java 3789 2010-09-27 19:10:48Z kschaefe $ 003 * 004 * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle, 005 * Santa Clara, California 95054, U.S.A. All rights reserved. 006 * 007 * This library is free software; you can redistribute it and/or 008 * modify it under the terms of the GNU Lesser General Public 009 * License as published by the Free Software Foundation; either 010 * version 2.1 of the License, or (at your option) any later version. 011 * 012 * This library is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * You should have received a copy of the GNU Lesser General Public 018 * License along with this library; if not, write to the Free Software 019 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 020 */ 021 022package org.jdesktop.swingx; 023 024import java.awt.Point; 025 026import javax.swing.JComponent; 027import javax.swing.RepaintManager; 028import javax.swing.SwingUtilities; 029 030/** 031 * <p>An implementation of {@link RepaintManager} which adds support for transparency 032 * in {@link JXPanel}s. <code>JXPanel</code> (which supports translucency) will 033 * replace the current RepaintManager with an instance of RepaintManagerX 034 * <em>unless</em> the current RepaintManager is tagged by the {@link TranslucentRepaintManager} 035 * annotation.</p> 036 * 037 * @author zixle 038 * @author rbair 039 * @author Karl Schaefer 040 */ 041@TranslucentRepaintManager 042public class RepaintManagerX extends ForwardingRepaintManager { 043 /** 044 * Creates a new manager that forwards all calls to the delegate. 045 * 046 * @param delegate 047 * the manager backing this {@code RepaintManagerX} 048 * @throws NullPointerException 049 * if {@code delegate} is {@code null} 050 */ 051 public RepaintManagerX(RepaintManager delegate) { 052 super(delegate); 053 } 054 055 /** 056 * {@inheritDoc} 057 */ 058 @Override 059 public void addDirtyRegion(JComponent c, int x, int y, int w, int h) { 060 JXPanel panel = SwingXUtilities.getAncestor(JXPanel.class, c); 061 062 if (panel != null && !panel.isOpaque()) { 063 Point p = SwingUtilities.convertPoint(c, x, y, panel); 064 addDirtyRegion(panel, p.x, p.y, w, h); 065 } else { 066 super.addDirtyRegion(c, x, y, w, h); 067 } 068 } 069}