imagepanel.java

mp3的播放

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

import java.awt.Graphics;
import java.awt.Image;

import javax.swing.ImageIcon;
import javax.swing.JPanel;

/**
 * 图片面板类
 * @author  we
 */
public class ImagePanel extends JPanel {

	/**
	 * 自动生成的序列化属性值
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * 初始化需要的图片
	 */
	private ImageIcon imageIcon;
	
	/**
	 * 绘制用的图形
	 */
	private Image image;

	/**
	 * 构造函数,根据图片设置初始大小
	 * @param imageName
	 */
	public ImagePanel(String imageName) {
		imageIcon = new ImageIcon(getClass().getResource(
				"images/" + imageName + ".png"));
		image = imageIcon.getImage();
		setSize(imageIcon.getIconWidth(), imageIcon.getIconHeight());
	}

	/**
	 * 重绘组件函数,可调整图片使其适应组件大小
	 */
	public void paintComponent(Graphics g) {
		super.paintComponent(g);
		g.drawImage(image, 0, 0, getWidth(), getHeight(), 0, 0, imageIcon
				.getIconWidth(), imageIcon.getIconHeight(), this);
	}
}