RepaintManagerX.java
资源名称:swingx.zip [点击查看]
上传用户:zhengdagz
上传日期:2014-03-06
资源大小:1956k
文件大小:3k
源码类别:
xml/soap/webservice
开发平台:
Java
- /*
- * $Id: RepaintManagerX.java,v 1.4 2005/10/10 18:01:46 rbair Exp $
- *
- * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
- * Santa Clara, California 95054, U.S.A. All rights reserved.
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
- package org.jdesktop.swingx;
- import java.awt.Container;
- import java.awt.Rectangle;
- import javax.swing.JComponent;
- import javax.swing.RepaintManager;
- /**
- * This repaint manager is used by Swingx for translucency. The default implementation
- * of JXPanel (which supports translucency) will replace the current RepaintManager
- * with a RepaintManagerX *unless* the current RepaintManager is
- * tagged by the "TranslucentRepaintManager" interface.
- * <p>TODO: Add this to the main documentation (make it visible) so that people
- * don't bump into it accidently and spend time debugging</p>
- *
- * @author zixle
- * @author rbair
- */
- public class RepaintManagerX extends RepaintManager implements TranslucentRepaintManager {
- public void addDirtyRegion(JComponent c, int x, int y, int w, int h) {
- Rectangle dirtyRegion = getDirtyRegion(c);
- if (dirtyRegion.width == 0 && dirtyRegion.height == 0) {
- int lastDeltaX = c.getX();
- int lastDeltaY = c.getY();
- Container parent = c.getParent();
- while (parent instanceof JComponent) {
- if (!parent.isVisible() || (parent.getPeer() == null)) {
- return;
- }
- if (parent instanceof JXPanel && ((JXPanel)parent).getAlpha() < 1f) {
- x += lastDeltaX;
- y += lastDeltaY;
- lastDeltaX = lastDeltaY = 0;
- c = (JComponent)parent;
- }
- lastDeltaX += parent.getX();
- lastDeltaY += parent.getY();
- parent = parent.getParent();
- }
- }
- super.addDirtyRegion(c, x, y, w, h);
- }
- }