headfactory.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.ui.tool;

import org.eclipse.swt.graphics.Image;

import edu.tsinghua.lumaqq.IconHolder;
import edu.tsinghua.lumaqq.models.FriendModel;
import edu.tsinghua.lumaqq.models.IQQNode;
import edu.tsinghua.lumaqq.qq.Util;

/**
 * 根据model的参数得到正确的头像
 * 
 * @author luma
 */
public class HeadFactory {
    private static IconHolder icons = IconHolder.getInstance();
    	
	/**
	 * 得到好友的在线头像，如果没有face属性，则返回缺省头像
	 * 
	 * @param f
	 * 		好友的model
	 * @return
	 * 		头像的Image对象
	 */
	public static Image getOnlineHead(FriendModel f) {
		return icons.getHead(f.getHeadId());
	}
	
	/**
	 * 得到好友的在线小头像，这个是因为linux下面居然不会自动缩放图像，没办法
	 * 
	 * @param f
	 * 		好友的model
	 * @return
	 * 		小头像的Image对象
	 */
	public static Image getOnlineSmallHead(FriendModel f) {
		return icons.getSmallHead(f.getHeadId());
	}
	
	/**
	 * 根据状态得到具体的头像，如果这个好友现在有消息发来，则当作在线状态处理
	 * 
	 * @param f
	 * 		好友model
	 * @return
	 * 		头像的Image对象
	 */
	public static Image getHeadByStatus(FriendModel f) {
		return getHeadByStatus((Integer)f.getProperty(IQQNode.HEAD), f.getStatus());
	}
	
	/**
	 * 根据状态得到具体的头像
	 * 
	 * @param f
	 * 		好友model
	 * @param status
	 * 		状态
	 * @return
	 * 		头像的Image对象
	 */
	public static Image getHeadByStatus(FriendModel f, String status) {
		return getHeadByStatus((Integer)f.getProperty(IQQNode.HEAD), status);
	}	
	
	/**
	 * 根据状态得到具体的头像
	 * 
	 * @param faceId
	 * 		头像索引
	 * @param status
	 * 		状态
	 * @return
	 * 		头像的Image对象
	 */
	public static Image getHeadByStatus(int faceId, String status) {
		if(status.equals(IQQNode.VALUE_ONLINE))
			return icons.getHead(faceId);
		else if(status.equals(IQQNode.VALUE_AWAY))
			return icons.getHead(faceId + 2);
		else if(status.equals(IQQNode.VALUE_HIDDEN))
		    return icons.getHiddenHead(faceId);
		else
			return icons.getHead(faceId + 1);
	}
	
	/**
	 * 根据状态得到具体的头像
	 * 
	 * @param face
	 * 		头像索引的字符串形式
	 * @param status
	 * 		状态
	 * @return	
	 * 		头像的Image对象
	 */
	public static Image getHeadByStatus(String face, String status) {
		int faceId = Util.getInt(face, 0);
		return getHeadByStatus(faceId, status);
	}
	
	/**
	 * 根据状态得到具体的头像
	 * 
	 * @param face
	 * 		在线头像索引
	 * @param status
	 * 		状态
	 * @return
	 * 		头像的Image对象
	 */
	public static Image getHeadByStatus(Integer face, String status) {
		return getHeadByStatus(face.intValue(), status);
	}	
	
	/**
	 * 根据状态得到小头像
	 * 
	 * @param f
	 * 		好友model
	 * @return
	 * 		头像Image对象
	 */
	public static Image getSmallHeadByStatus(FriendModel f) {
		int face = f.getHeadId();
		if(f.isOnline())
			return icons.getSmallHead(face);
		else if(f.isAway())
			return icons.getSmallHead(face + 2);
		else
			return icons.getSmallHead(face + 1);
	}
}