package com.hongyuan.gui;
 
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
 
public class PlafTest {
 
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
             
            @Override
            public void run() {
                PlafFrame frame=new PlafFrame();
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setVisible(true);
            }
        });
    }
 
}
 
class PlafFrame extends JFrame
{
    private JPanel buttonPanel;
    public PlafFrame(){
        this.setTitle("PlafTest");
        this.setSize(400, 300);
         
        buttonPanel=new JPanel();
        //查询观感并生成按钮
        UIManager.LookAndFeelInfo[] infos=UIManager.getInstalledLookAndFeels();
        for(UIManager.LookAndFeelInfo info:infos){
            makeButton(info.getName(),info.getClassName());
        }
         
        this.add(buttonPanel);
    }
    void makeButton(String name,final String plafName){
         
        JButton button=new JButton(name);
        buttonPanel.add(button);
         
        button.addActionListener(new ActionListener() {
             
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    //设置观感并更新组件
                    UIManager.setLookAndFeel(plafName);
                    SwingUtilities.updateComponentTreeUI(PlafFrame.this);
                } catch (ClassNotFoundException | InstantiationException
                        | IllegalAccessException
                        | UnsupportedLookAndFeelException e1) {
                    e1.printStackTrace();
                }
            }
        });
    }
}