soundcontrol.java

mp3的播放

/**************************************************************************
 *	(C) Copyright 2008 by  Tao Liuyuan and Zhang Shuitao.                       *
 *		All Rights Reserved.               								  *
 *     																      *
 *	Project					: KYPlayer     								  *
 *	File					: SoundControl.java 						  *	
 *	JDK version used        : jdk1.6.0_u4							      *
 * 	Version                 : 1.00				     					  *
 * 	Created				    : 2008.7.6 by we						  *
 *************************************************************************/
package MP3Player;

import java.awt.event.MouseEvent;

/**
 * 声音控制条
 * @author we
 */
public class SoundControl extends ControlBar {
	
	/**
	 * 自动生成的序列化值
	 */
	private static final long serialVersionUID = 1L;
	
	/**
	 * 责任窗口
	 */
	private MainPlayer mainForm = null;

	/**
	 * 构造函数
	 * @param mainForm
	 */
	public SoundControl(MainPlayer mainForm) {
		super();
		
		this.mainForm = mainForm;
	}
	
	/**
	 * 自身重设完毕后
	 */
	@Override
	public void done() {
		super.done();
		
		mainForm.setGain();
		int percent = (int)(getProcessPercent()*100);
		mainForm.setSoundLabel("音量：" + Integer.toString(percent) + "%");
	}

	/**
	 * 窗口拖动响应
	 */
	@Override
	public void mouseDragged(MouseEvent e) {
		super.mouseDragged(e);
		done();
	}

	/**
	 * 设定提示标签
	 */
	@Override
	public void setTip(MouseEvent e) {
		int percent = getPointerPostion(e);
		setToolTipText("音量：" + Integer.toString(percent) + "%");
	}
	
	/**
	 * 增减音量
	 * @param value
	 */
	public void change(int value) {
		setProcessPercent(getProcessPercent() + (double)value/25);
		done();
	}
}