friendpropertylistener.java

类似于MSN

/*
* LumaQQ - Java QQ Client
*
* Copyright (C) 2004 luma <[e-mail]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.tsinghua.lumaqq.events;

import org.eclipse.swt.SWT;
import edu.tsinghua.lumaqq.models.FriendModel;
import edu.tsinghua.lumaqq.shells.*;
import edu.tsinghua.lumaqq.utils.OptionUtils;
import edu.tsinghua.swt.events.PropertyEvent;
import edu.tsinghua.swt.events.PropertyListener;
import edu.tsinghua.swt.widgets.ShutterLabel;

/**
 * 监视好友的属性，比如好友的状态改变了等等，做出相应的处理
 * 
 * @author 马若劼
 */
public class FriendPropertyListener implements PropertyListener {
	private MainShell main;
	
	/**
	 * 构造函数
	 * @param main
	 */
	public FriendPropertyListener(MainShell main) {
		this.main = main;
	}
	
	/* (non-Javadoc)
	 * @see edu.tsinghua.swt.events.PropertyListener#propertyAdded(edu.tsinghua.swt.events.PropertyEvent)
	 */
	public void propertyAdded(PropertyEvent e) {
	    // 没有什么要做的
	}
	
	/* (non-Javadoc)
	 * @see edu.tsinghua.swt.events.PropertyListener#propertyRemoved(edu.tsinghua.swt.events.PropertyEvent)
	 */
	public void propertyRemoved(PropertyEvent e) {
	    // 没有什么要做的
	}
	
	/* (non-Javadoc)
	 * @see edu.tsinghua.swt.events.PropertyListener#propertyModified(edu.tsinghua.swt.events.PropertyEvent)
	 */
	public void propertyModified(PropertyEvent e) {
		/*
		 * 如果一个属性改变了，那么我们就要判断是不是上线状态改变了，如果是，需要设置不同的头像
		 * 注意这里的属性也可能是tab的属性，所有control可能为null，对于这种情况我们直接返回
		 */ 
		// 如果不是status属性变了，那我们不关心
		if(e.key.equals("status")) {
			// 首先我们得到相关的ShutterLabel对象
			FriendModel f = (FriendModel)e.getSource();
			ShutterLabel control = main.shutter.getItemControl(f);
			if(control == null) return;
			// 判断是否会员
			boolean member = f.isMember();
			// 设置头像
			control.setImage(main.getFaceByStatus(f));
			// 开始判断状态
			if(e.newValue.equals("online")) {
				if(member)
					control.setForeground(main.display.getSystemColor(SWT.COLOR_RED));
				else
					control.setForeground(main.display.getSystemColor(SWT.COLOR_BLACK));
				// 如果当前处于只显示在线好友模式，则显示这个好友的view part
				if(OptionUtils.getInstance().isShowOnlineOnly()) {
					int[] temp = main.getFriendCoordinate(f.getQQ());
					if(temp != null && temp.length > 0) {
						main.shutter.showItem(temp[0], temp[1], true);
					}
				}
			} else if(e.newValue.equals("away")) {
				control.setForeground(main.display.getSystemColor(SWT.COLOR_BLUE));
				// 如果当前处于只显示在线好友模式，则显示这个好友的view part
				if(OptionUtils.getInstance().isShowOnlineOnly()) {
					int[] temp = main.getFriendCoordinate(f.getQQ());
					if(temp != null && temp.length > 0) {
						main.shutter.showItem(temp[0], temp[1], true);
					}
				}
			} else {
				control.setForeground(main.display.getSystemColor(SWT.COLOR_BLACK));
				// 如果当前处于只显示在线好友模式，则要隐藏这个好友的view part
				if(OptionUtils.getInstance().isShowOnlineOnly()) {
					int[] temp = main.getFriendCoordinate(f.getQQ());
					if(temp != null && temp.length > 0)
						main.shutter.hideItem(temp[0], temp[1], true);
				}
			}
		}
	}
}