LinkAction.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: LinkAction.java,v 1.5 2005/10/10 18:02:40 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.action;
- import java.awt.event.ActionEvent;
- import java.awt.event.ActionListener;
- import java.beans.PropertyChangeEvent;
- import java.beans.PropertyChangeListener;
- import javax.swing.AbstractAction;
- import javax.swing.Action;
- import org.jdesktop.swingx.LinkModel;
- /**
- * @author Jeanette Winzenburg
- */
- public class LinkAction extends AbstractAction {
- private LinkModel link;
- private ActionListener delegate;
- public static final String VISIT_ACTION = "visit";
- public static final String VISITED_PROPERTY = LinkModel.VISITED_PROPERTY;
- private PropertyChangeListener linkListener;
- public LinkAction(LinkModel link) {
- setLink(link);
- }
- public void setLink(LinkModel link) {
- uninstallLinkListener();
- this.link = link;
- installLinkListener();
- updateFromLink();
- }
- public LinkModel getLink() {
- return link;
- }
- public void setVisitingDelegate(ActionListener delegate) {
- this.delegate = delegate;
- }
- public void actionPerformed(ActionEvent e) {
- if ((delegate != null) && (link != null)) {
- delegate.actionPerformed(new ActionEvent(link, ActionEvent.ACTION_PERFORMED, VISIT_ACTION));
- }
- }
- private void uninstallLinkListener() {
- if (link == null) return;
- link.removePropertyChangeListener(getLinkListener());
- }
- private void updateFromLink() {
- if (link != null) {
- putValue(Action.NAME, link.getText());
- putValue(Action.SHORT_DESCRIPTION, link.getURL().toString());
- putValue(VISITED_PROPERTY, new Boolean(link.getVisited()));
- } else {
- Object[] keys = getKeys();
- if (keys == null) return;
- for (int i = 0; i < keys.length; i++) {
- putValue(keys[i].toString(), null);
- }
- }
- }
- private void installLinkListener() {
- if (link == null) return;
- link.addPropertyChangeListener(getLinkListener());
- }
- private PropertyChangeListener getLinkListener() {
- if (linkListener == null) {
- linkListener = new PropertyChangeListener() {
- public void propertyChange(PropertyChangeEvent evt) {
- updateFromLink();
- }
- };
- }
- return linkListener;
- }
- }