testimage.java

来自「简单的播放器」· Java 代码 · 共 37 行

//此类功能是向jPanel上加载图片
package audioplayer;

import javax.swing.JPanel;
import java.io.Serializable;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.Toolkit;

public class TestImage extends JPanel implements Serializable
{
        private Image imgBackGround=null;

        public TestImage()
        {
                imgBackGround=new BufferedImage(200,200,BufferedImage.SCALE_REPLICATE);
                Graphics g=imgBackGround.getGraphics();
                g.setColor(Color.white);
        	g.clearRect(0,0,200,200);//注视的
                g.drawString("Now no image",50,50);
        }

        public void setImage(String  strImageName)
        {
                imgBackGround=Toolkit.getDefaultToolkit().getImage(strImageName);
                repaint();
        }

        public void paintComponent(Graphics g)
        {
                g.drawImage(imgBackGround,0,0,getSize().width,getSize().height,this);
        }

}