friendpropertylistener.java

java写的qq代码实现qq的部分功能

/*
* 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 org.eclipse.swt.graphics.Color;

import edu.tsinghua.lumaqq.models.ClusterModel;
import edu.tsinghua.lumaqq.models.FriendModel;
import edu.tsinghua.lumaqq.models.IQQNode;
import edu.tsinghua.lumaqq.ui.*;
import edu.tsinghua.lumaqq.ui.tool.HeadFactory;
import edu.tsinghua.lumaqq.utils.OptionUtil;
import edu.tsinghua.swt.events.PropertyEvent;
import edu.tsinghua.swt.events.PropertyListener;
import edu.tsinghua.swt.widgets.CoolButton;

/**
 * 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(IQQNode.STATUS)) {
			// 首先我们得到相关的ShutterLabel对象
			FriendModel f = (FriendModel)e.getSource();
			
			CoolButton control = main.getShutter().getItemControl(f);
			if(control == null) return;
			// 得到包含这个好友的组索引
			int[] cor = main.getMVCHelper().getFriendCoordinate(f.getQQ());
			// 如果打开了最近联系人功能，检查一下是否最近联系人中也有它的view part
			// 目前最近联系人中的model只是好友组中model的引用，所以这就导致了一个
			// model可能有两个view part，在考虑之后，我觉得这个不是太大的问题，所以
			// 就没有改动shutter控件的结构
			CoolButton latestControl = main.getMVCHelper().getLatestViewPart(f);
			// 判断是否会员
			boolean member = f.isMember();
			// 设置头像
			control.setImage(HeadFactory.getHeadByStatus(f));
			if(latestControl != null)
			    latestControl.setImage(HeadFactory.getHeadByStatus(f));
			// 开始判断状态
			if(e.newValue.equals(IQQNode.VALUE_ONLINE)) {
				if(member) 
				    setNameColor(control, latestControl, main.getDisplay().getSystemColor(SWT.COLOR_RED));
				else
				    setNameColor(control, latestControl, main.getDisplay().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(OptionUtil.getInstance().isShowOnlineOnly()) {
					int[] temp = main.getMVCHelper().getFriendCoordinate(f.getQQ());
					if(temp != null && temp.length > 0) {
						main.getShutter().showItem(temp[0], temp[1], true);
					}
				}
				// 组在线好友数加1
				if(e.oldValue.equals(IQQNode.VALUE_OFFLINE) && f.isOriginal()) {
				    if(cor != null && cor.length > 0)
				        main.increaseGroupOnlineUser(cor[0]);
				}
			} else if(e.newValue.equals(IQQNode.VALUE_AWAY)) {
			    setNameColor(control, latestControl, main.getDisplay().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(OptionUtil.getInstance().isShowOnlineOnly()) {
					if(cor != null && cor.length > 0)
						main.getShutter().showItem(cor[0], cor[1], true);
				}
				// 组在线好友数加1
				if(e.oldValue.equals(IQQNode.VALUE_OFFLINE) && f.isOriginal()) {
				    if(cor != null && cor.length > 0)
				        main.increaseGroupOnlineUser(cor[0]);
				}
			} else if(e.newValue.equals(IQQNode.VALUE_HIDDEN)) {
			    setNameColor(control, latestControl, main.getDisplay().getSystemColor(SWT.COLOR_GREEN));
				// 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(OptionUtil.getInstance().isShowOnlineOnly()) {
					if(cor != null && cor.length > 0)
						main.getShutter().showItem(cor[0], cor[1], true);
				}
				// 组在线好友数加1
				if(e.oldValue.equals(IQQNode.VALUE_OFFLINE) && f.isOriginal()) {
				    if(cor != null && cor.length > 0)
				        main.increaseGroupOnlineUser(cor[0]);
				}
			} else {
			    setNameColor(control, latestControl, main.getDisplay().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(OptionUtil.getInstance().isShowOnlineOnly()) {
					if(cor != null && cor.length > 0)
						main.getShutter().hideItem(cor[0], cor[1], true);
				}
				// 组在线好友数减1
			    if(cor != null && cor.length > 0 && f.isOriginal())
			        main.decreaseGroupOnlineUser(cor[0]);
			}
		} else if(IQQNode.MESSAGE_COUNT.equals(e.key)) {		    
		    ClusterModel c = (ClusterModel)e.getSource();
		    if(!IQQNode.VALUE_SHOW_NUMBER.equals(c.getMessageOption())) 		        
		        return;
		    
		    CoolButton viewPart = main.getMVCHelper().getClusterViewPart(c.getClusterId());
		    if(viewPart == null)
		        return;
		    
		    if(c.getMessageCount() == 0)
		        viewPart.setText(c.getName());
		    else
		        viewPart.setText("(" + c.getMessageCount() + ") - " + c.getName());
		} else if(IQQNode.MESSAGE.equals(e.key)) {
		    ClusterModel c = (ClusterModel)e.getSource();
		    if(e.oldValue == IQQNode.VALUE_SHOW_NUMBER) {
			    CoolButton viewPart = main.getMVCHelper().getClusterViewPart(c.getClusterId());
			    if(viewPart == null)
			        return;
			    
			    viewPart.setText(c.getName());
		    }
		}
	}
	
	private void setNameColor(CoolButton control, CoolButton latestControl, Color color) {
		control.setForeground(color);
		if(latestControl != null)
		    latestControl.setForeground(color);
	}
}