package com.tent;

import java.awt.Button;

import java.awt.Color;

import java.awt.FlowLayout;

import java.awt.Frame;

import java.awt.Label;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import javax.swing.JLabel;

//做一个框架

import javax.swing.JButton;

import javax.swing.JFrame;

public class JavaGUI {

		//private static final MouseListener Button1Handler = null;

		//必须要是static

		//犯了一个很严重的错误，对象的创建和方法的调用都用在main函数里面，这里应该放到类里面。否则都不可能编程静态

	static Frame f=new Frame();//注意既然其他的组件都不是扩展类。那么框架也不为扩展窗口

	static 	Label lb1=new Label("JavaGUI演示程序");

	static	Label lb2=new Label("欢迎学习javaGUI编程");

	static	Label lb3=new Label("当前发生的按钮事件");

	static	Button jb1=new Button("会说话的按钮");

	static	Button jb2=new Button("退出的按钮");

		///因为我用的组件都是扩展型，所以方法背景，前景都无法调用

		public static void main(String[] args) {

			f.add(lb1);

			f.add(lb2);

			f.add(lb3);

			f.add(jb1);

			f.add(jb2);

			f.setForeground(Color.red);

			f.setBackground(Color.orange);

			f.setSize(200,200);

		//	f.setLayout(null);///这里布局出错

			f.setLayout(new FlowLayout());

			lb3.setBackground(Color.CYAN);//设置标签的背景色

			jb1.addMouseListener(new Button1Handler());//单击某个按钮即可	触发ActionEvent事件。也可以触发MouseEvent事件

			jb2.addActionListener(new Button2Handler());

			f.setLocationRelativeTo(null);

			f.setVisible(true);

			f.setLayout(null);

		}

}				//不必声明静态的私有属性

		class Button1Handler implements MouseListener{

			@Override

			public void mouseClicked(MouseEvent e) {

				// TODO Auto-generated method stub

				//按下点击事件

			JavaGUI.lb3.setText("你已经单击鼠标");

			}

			@Override

			public void mousePressed(MouseEvent e) {

				JavaGUI.lb3.setText("你已经按下鼠标");

				// TODO Auto-generated method stub

			}

			@Override

			public void mouseReleased(MouseEvent e) {

					//JavaGUI.lb3.setText("");

			}

			@Override

			public void mouseEntered(MouseEvent e) {

				JavaGUI.lb3.setText("你已经按下按钮");

				// TODO Auto-generated method stub

			}

			@Override

			public void mouseExited(MouseEvent e) {

				// TODO Auto-generated method stub

				JavaGUI.lb3.setText("你已经离开按钮上方");

			}

		}

			class Button2Handler implements ActionListener{

				@Override

				public void actionPerformed(ActionEvent e) {

					// TODO Auto-generated method stub

					System.exit(0);

				}

			}