/*
* LumaQQ - Java QQ Client
*
* Copyright (C) 2004 luma <stubma@163.com>
*
* 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.qq.packets.out;

import java.nio.ByteBuffer;

import edu.tsinghua.lumaqq.qq.PacketParseException;
import edu.tsinghua.lumaqq.qq.QQ;
import edu.tsinghua.lumaqq.qq.packets.OutPacket;

/**
 * <pre>
 * 改變狀態(tài)的包，格式為
 * 1. 頭部
 * 2. 想要切換到的狀態(tài)，一個字節(jié)
 * 3. 是否顯示虛擬攝像頭，4字節(jié)
 * 4. 尾部
 * </pre>
 *
 * @author 馬若劼
 */
public class ChangeStatusPacket extends OutPacket {
    // 是否顯示虛擬攝像頭
    private boolean showFakeCam;
    
    /**
     * 構(gòu)造函數(shù)
     */
    public ChangeStatusPacket() {
        super(QQ.QQ_CMD_CHANGE_STATUS, true);
        showFakeCam = false;
    }
	
    /**
     * @param buf
     * @param length
     * @throws PacketParseException
     */
    public ChangeStatusPacket(ByteBuffer buf, int length)
            throws PacketParseException {
        super(buf, length);
    }
    
    /* (non-Javadoc)
     * @see edu.tsinghua.lumaqq.qq.packets.OutPacket#putBody(java.nio.ByteBuffer)
     */
    protected void putBody(ByteBuffer buf) {
		// 設(shè)置狀態(tài)
		buf.put(user.getStatus());
		// 顯示虛擬攝像頭		
		buf.putInt(showFakeCam ? QQ.QQ_SHOW_FAKE_CAM : QQ.QQ_DONT_SHOW_FAKE_CAM);
    }
    
    /* (non-Javadoc)
     * @see edu.tsinghua.lumaqq.qq.packets.OutPacket#parseBody(java.nio.ByteBuffer)
     */
    protected void parseBody(ByteBuffer buf) throws PacketParseException {
        buf.get();
        showFakeCam = buf.getInt() == QQ.QQ_SHOW_FAKE_CAM;
    }
    
    /**
     * @return Returns the showFakeCam.
     */
    public synchronized boolean isShowFakeCam() {
        return showFakeCam;
    }
    
    /**
     * @param showFakeCam The showFakeCam to set.
     */
    public synchronized void setShowFakeCam(boolean showFakeCam) {
        this.showFakeCam = showFakeCam;
    }
}