package?javaEX8;

import?javax.swing.Jframe;
import?javax.swing.JLabel;
import?javax.swing.JlayeredPane;
import?javax.swing.JPanel;
import?java.awt.Color;
import?javax.swing.JMenuBar;
import?javax.swing.JMenuItem;
import?javax.swing.JMenu;
import?javax.swing.ImageIcon;
import?java.awt.event.MouseAdapter;
import?java.awt.event.MouseEvent;
import?java.awt.event.MouseMotionAdapter;
import?java.awt.Font;
import?javax.swing.UIManager;

public?class?LowBTalk?extends?Jframe?{

	private?ImageIcon?background;

	public?static?void?main（String[]?args）?{
			LowBTalk?frame?=?new?LowBTalk（）;
			frame.setVisible（true）;
	}


	private?static?final?long?serialVersionUID?=?1L;
	//用于處理拖動事件，表示鼠標按下時的坐標，相對于Jframe
	?int?xOld?=?0;
	?int?yOld?=?0;
	public?LowBTalk（）?{
		
		getContentPane（）.setLayout（null）;

		??//處理拖動事件
		??this.addMouseListener（new?MouseAdapter（）?{
		???@Override
		???public?void?mousePressed（MouseEvent?e）?{
		???xOld?=?e.getX（）;
		???yOld?=?e.getY（）;
		???}
		??}）;
		??this.addMouseMotionListener（new?MouseMotionAdapter（）?{
		???public?void?mouseDragged（MouseEvent?e）?{
		???int?xOnScreen?=?e.getXOnScreen（）;
		???int?yOnScreen?=?e.getYOnScreen（）;
		???int?xx?=?xOnScreen?-?xOld;
		???int?yy?=?yOnScreen?-?yOld;
		???LowBTalk.this.setLocation（xx?yy）;
		???}
		??}）;
		??
		??background?=?new?ImageIcon（“img/HackerBack.jpg“）;//?背景圖片
		??setSize（background.getIconWidth（）?background.getIconHeight（））;
		//JlayeredPane用于添加兩個圖層的，一個用于背景，一個用于界面
		??JlayeredPane?layeredPane?=?new?JlayeredPane（）;
		??layeredPane.setBounds（0?0?background.getIconWidth（）background.getIconHeight（））;
		??getContentPane（）.add（layeredPane）;
		???
		??//背景Panel
		??JPanel?bgPanel?=?new?JPanel（）;
		??bgPanel.setBounds（0?0?background.getIconWidth（）?background.getIconHeight（））;
		??layeredPane.add（bgPanel）;
		???