java图形界面之图形化按钮

package test;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import static net.mindview.util.SwingConsole.*;

public class PictureLabel extends JFrame{
    private static Icon[] pictures;
    private JButton jb,jb1 = new JButton("Disable");
    private boolean mad = false;
    
    public PictureLabel()
    {
        pictures = new Icon[]{
                new ImageIcon("src/picture/picture1.jpg"),   //相对路径
                new ImageIcon("H:/java/workspace/study/src/picture/picture2.jpg"),  //绝对路径
                new ImageIcon("src/picture/picture3.jpg"),
                new ImageIcon("src/picture/picture4.jpg"),
                new ImageIcon("src/picture/picture5.jpg")
        };
        //路径前不加/为相对路径
        
        jb = new JButton("JButton",pictures[3]);
        setLayout(new FlowLayout());
        jb.addActionListener(new ActionListener(){
            @Override//保证被标注的方法确实覆盖了基类的方法，否则编译会出错
            public void actionPerformed(ActionEvent e)
            {
                if(mad)
                {
                    jb.setIcon(pictures[3]);
                    mad = false;
                }else
                {
                    jb.setIcon(pictures[0]);
                    mad = true;
                }
                jb.setVerticalAlignment(JButton.TOP);
                jb.setHorizontalAlignment(JButton.LEFT);
            }
        });
        
        jb.setRolloverEnabled(true);  //允许翻转图标
        jb.setRolloverIcon(pictures[1]);
        jb.setPressedIcon(pictures[2]);
        jb.setDisabledIcon(pictures[4]);
        jb.setToolTipText("Yow");
        add(jb);
        //如果 setRolloverEnabled 为 true，则当鼠标移动到按钮上时，setRolloverIcon的内容就被用到该按钮的图形上，即picture[1]；
        //当按下按钮时，setPressedIcon的内容被用到该按钮的图形上，即picture[2]；当按钮被禁止时，setDisabledIcon的内容被应用到按钮，
        //即picture[4]。
       
        jb1.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e)
            {
                if(jb.isEnabled())
                {
                    jb.setEnabled(false);
                    jb1.setText("Enable");
                }else
                {
                    jb.setEnabled(true);
                    jb1.setText("Disable");
                }
            }
        });
        add(jb1);
    }
    
    public static void main(String[] args)
    {
        run(new PictureLabel(),500,200);
    }
}