package com.Menu;

	import java.awt.EventQueue;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.SwingConstants;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Font;
import java.util.Stack;

import javax.swing.JMenu;
import javax.swing.JMenuItem;

import com.service.CalculatorImpl;

import javax.swing.UIManager;
import javax.swing.JMenuBar;

import java.awt.SystemColor;
import java.awt.Color;
import java.awt.Toolkit;

import javax.swing.JLabel;
import javax.swing.ImageIcon;

	/**
	 *  有JFrame工具创建的swing界面
	 *  
	 * */
	public class Main {
	
		private JFrame frame;
		private JTextField display;
		private JPanel panel;
		private JButton clear;
		private JButton divide;
		private JButton multiple;
		private JButton delete;
		private JButton btnMc;
		private JButton num7;
		private JButton num8;
		private JButton num9;
		private JButton reduce;
		private JButton btnM;
		private JButton num1;
		private JButton num2;
		private JButton num3;
		private JButton equal;
		private JButton point;
		private JButton num0;
		private JButton num4;
		private JButton num5;
		private JButton num6;
		private JButton add;
		private JButton btnM_2;
		private JButton btnMr;
		private JMenuBar menuBar;
		private JMenu mnNewMenu;
		private JMenuItem mntmNewMenuItem;
		private JMenu mnNewMenu_1;
		private JMenuItem menuItem;
		private JMenuItem menuItem_1;
		private JTextField operate;
		private boolean flag = false;
	
		/**
		 * Launch the application.
		 * 
		 * 
		 */
		public static void main(String[] args) {
			EventQueue.invokeLater(new Runnable() {
				public void run() {
					try {
						Main window = new Main();
						window.frame.setVisible(true);
					} catch (Exception e) {
						e.printStackTrace();
					}
				}
			});
		}
	
		/**
		 * Create the application.
		 */
		public Main() {
			initialize();
		}
	
		/**
		 * 初始化框架及组件，并添加监听事件
		 */
		private void initialize() {
			frame = new JFrame();
			frame.setIconImage(Toolkit.getDefaultToolkit().getImage("E:\\myeclipse\\workspace\\mychat\\calculator\\img\\ms.ico"));
			
			frame.getContentPane().setBackground(UIManager.getColor("Button.darkShadow"));
			frame.setTitle("\u8BA1\u7B97\u5668");
			frame.setBounds(100, 100, 794, 1000);
			frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			frame.getContentPane().setLayout(null);
			
			display = new JTextField();
			display.setText("0");
			display.setAlignmentX(800);
			display.setFont(new Font("宋体", Font.PLAIN, 24));
			display.setEditable(false);
			display.setBounds(15, 94, 748, 91);
			frame.getContentPane().add(display);
			display.setColumns(2);
			
			panel = new JPanel();
			panel.setBounds(15, 222, 748, 604);
			frame.getContentPane().add(panel);
			panel.setLayout(null);
			
			clear = new JButton("C");
			clear.setFont(new Font("宋体", Font.PLAIN, 24));
			clear.setBackground(SystemColor.activeCaptionBorder);
			clear.setForeground(SystemColor.window);
			clear.setBounds(15, 15, 237, 100);
			panel.add(clear);
			
			divide = new JButton("/");
			divide.setFont(new Font("宋体", Font.PLAIN, 24));
			divide.setForeground(SystemColor.window);
			divide.setBackground(SystemColor.activeCaptionBorder);
			divide.setBounds(456, 265, 100, 100);
			panel.add(divide);
			
			multiple = new JButton("X");
			multiple.setFont(new Font("宋体", Font.PLAIN, 24));
			multiple.setForeground(SystemColor.window);
			multiple.setBackground(SystemColor.activeCaptionBorder);
			multiple.setBounds(456, 495, 100, 100);
			panel.add(multiple);
			
			delete = new JButton("\u5220\u9664");
			delete.setFont(new Font("宋体", Font.PLAIN, 24));
			delete.setForeground(SystemColor.window);
			delete.setBackground(SystemColor.activeCaptionBorder);
			delete.setBounds(604, 15, 100, 100);
			panel.add(delete);
			
			btnMc = new JButton("MC");
			btnMc.setFont(new Font("宋体", Font.PLAIN, 24));
			btnMc.setBackground(SystemColor.activeCaptionBorder);
			btnMc.setForeground(SystemColor.window);
			btnMc.setBounds(604, 145, 100, 100);
			panel.add(btnMc);
			
			num7 = new JButton("7");
			num7.setFont(new Font("宋体", Font.PLAIN, 24));
			num7.setForeground(SystemColor.window);
			num7.setBackground(SystemColor.activeCaptionBorder);
			num7.setBounds(15, 145, 100, 100);
			panel.add(num7);
			
			num8 = new JButton("8");
			num8.setFont(new Font("宋体", Font.PLAIN, 24));
			num8.setForeground(SystemColor.window);
			num8.setBackground(SystemColor.activeCaptionBorder);
			num8.setBounds(152, 145, 100, 100);
			panel.add(num8);
			
			num9 = new JButton("9");
			num9.setFont(new Font("宋体", Font.PLAIN, 24));
			num9.setForeground(SystemColor.window);
			num9.setBackground(SystemColor.activeCaptionBorder);
			num9.setBounds(302, 145, 100, 100);
			panel.add(num9);
			
			reduce = new JButton("-");
			reduce.setFont(new Font("宋体", Font.PLAIN, 24));
			reduce.setForeground(SystemColor.window);
			reduce.setBackground(SystemColor.activeCaptionBorder);
			reduce.setBounds(456, 145, 100, 100);
			panel.add(reduce);
			
			btnM = new JButton("M+");
			btnM.setFont(new Font("宋体", Font.PLAIN, 24));
			btnM.setBackground(SystemColor.activeCaptionBorder);
			btnM.setForeground(SystemColor.window);
			btnM.setBounds(604, 265, 100, 100);
			panel.add(btnM);
			
			num1 = new JButton("1");
			num1.setFont(new Font("宋体", Font.PLAIN, 24));
			num1.setBackground(SystemColor.activeCaptionBorder);
			num1.setForeground(SystemColor.window);
			
			num1.setBounds(15, 380, 100, 100);
			panel.add(num1);
			
			num2 = new JButton("2");
			num2.setFont(new Font("宋体", Font.PLAIN, 24));
			num2.setForeground(SystemColor.window);
			num2.setBackground(SystemColor.activeCaptionBorder);
			num2.setBounds(152, 380, 100, 100);
			panel.add(num2);
			
			num3 = new JButton("3");
			num3.setFont(new Font("宋体", Font.PLAIN, 24));
			num3.setBackground(SystemColor.activeCaptionBorder);
			num3.setForeground(SystemColor.window);
			num3.setBounds(302, 380, 100, 100);
			panel.add(num3);
			
			equal = new JButton("=");
			equal.setFont(new Font("宋体", Font.PLAIN, 24));
			equal.setForeground(SystemColor.window);
			equal.setBackground(SystemColor.activeCaptionBorder);
			equal.setBounds(604, 380, 100, 215);
			panel.add(equal);
			
			point = new JButton(".");
			point.setFont(new Font("宋体", Font.PLAIN, 24));
			point.setBackground(SystemColor.activeCaptionBorder);
			point.setForeground(SystemColor.window);
			point.setBounds(302, 495, 100, 100);
			panel.add(point);
			
			num0 = new JButton("0");
			num0.setFont(new Font("宋体", Font.PLAIN, 24));
			num0.setForeground(SystemColor.window);
			num0.setBackground(SystemColor.activeCaptionBorder);
			num0.setBounds(15, 495, 238, 100);
			panel.add(num0);
			
			num4 = new JButton("4");
			num4.setFont(new Font("宋体", Font.PLAIN, 24));
			num4.setForeground(SystemColor.window);
			num4.setBackground(SystemColor.activeCaptionBorder);
			num4.setBounds(15, 265, 100, 100);
			panel.add(num4);
			
			num5 = new JButton("5");
			num5.setFont(new Font("宋体", Font.PLAIN, 24));
			num5.setForeground(SystemColor.window);
			num5.setBackground(SystemColor.activeCaptionBorder);
			num5.setBounds(152, 265, 100, 100);
			panel.add(num5);
			
			num6 = new JButton("6");
			num6.setFont(new Font("宋体", Font.PLAIN, 24));
			num6.setForeground(SystemColor.window);
			num6.setBackground(SystemColor.activeCaptionBorder);
			num6.setBounds(302, 265, 100, 100);
			panel.add(num6);
			
			add = new JButton("+");
			add.setFont(new Font("宋体", Font.PLAIN, 24));
			add.setForeground(SystemColor.window);
			add.setBackground(SystemColor.activeCaptionBorder);
			add.setBounds(456, 380, 100, 100);
			panel.add(add);
			
			btnM_2 = new JButton("M-");
			btnM_2.setFont(new Font("宋体", Font.PLAIN, 24));
			btnM_2.setForeground(SystemColor.window);
			btnM_2.setBackground(SystemColor.activeCaptionBorder);
			btnM_2.setBounds(456, 19, 100, 93);
			panel.add(btnM_2);
			
			btnMr = new JButton("MR");
			btnMr.setFont(new Font("宋体", Font.PLAIN, 24));
			btnMr.setForeground(SystemColor.window);
			btnMr.setBackground(SystemColor.activeCaptionBorder);
			btnMr.setBounds(302, 15, 100, 100);
			panel.add(btnMr);
			//添加监听器
			btnMr.addActionListener(new ForFun());
			btnM_2.addActionListener(new ForFun());
			btnMc.addActionListener(new ForFun());
			btnM.addActionListener(new ForFun());
			clear.addActionListener(new ClearListener());
			num0.addActionListener(new ButtonListener(display,num0));
			num1.addActionListener(new ButtonListener(display,num1));
			num2.addActionListener(new ButtonListener(display,num2));
			num3.addActionListener(new ButtonListener(display,num3));
			num4.addActionListener(new ButtonListener(display,num4));
			num5.addActionListener(new ButtonListener(display,num5));
			num6.addActionListener(new ButtonListener(display,num6));
			num7.addActionListener(new ButtonListener(display,num7));
			num8.addActionListener(new ButtonListener(display,num8));
			num9.addActionListener(new ButtonListener(display,num9));
			add.addActionListener(new CalculatorListener(display,add));
			reduce.addActionListener(new CalculatorListener(display,reduce));
			multiple.addActionListener(new CalculatorListener(display,multiple));
			divide.addActionListener(new CalculatorListener(display,divide));
			point.addActionListener(new CalculatorListener(display,point));
			delete.addActionListener(new DeleteListener());
			equal.addActionListener(new ArithmeticListener());
			//设置右对齐
			display.setHorizontalAlignment(SwingConstants.RIGHT);
			
			operate = new JTextField();
			operate.setForeground(Color.BLACK);
			operate.setHorizontalAlignment(SwingConstants.RIGHT);
			operate.setFont(new Font("宋体", Font.PLAIN, 24));
			operate.setEditable(false);
			operate.setBounds(15, 27, 748, 68);
			frame.getContentPane().add(operate);
			operate.setColumns(10);
			
			JLabel label = new JLabel("");
			label.setHorizontalAlignment(SwingConstants.CENTER);
			label.setIcon(new ImageIcon("E:\\myeclipse\\workspace\\mychat\\calculator\\img\\wait.gif"));
			label.setBounds(232, 831, 322, 83);
			frame.getContentPane().add(label);
			frame.setLocationRelativeTo(null);
			frame.setResizable(false);//不允许用户改变界面大小
			
			menuBar = new JMenuBar();
			frame.setJMenuBar(menuBar);
			
			mnNewMenu = new JMenu("\u9009\u62E9");
			menuBar.add(mnNewMenu);
			
			mntmNewMenuItem = new JMenuItem("\u79D1\u5B66\u8BA1\u7B97\u5668");
			mntmNewMenuItem.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					frame.dispose();
					frame.setVisible(false);
					JOptionPane.showMessageDialog(null, "待跟进");
				}
			});
			mnNewMenu.add(mntmNewMenuItem);
			
			menuItem_1 = new JMenuItem("\u5173\u95ED");
			menuItem_1.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					System.exit(0);
				}
			});
			mnNewMenu.add(menuItem_1);
			
			mnNewMenu_1 = new JMenu("\u5173\u4E8E");
			menuBar.add(mnNewMenu_1);
			
			menuItem = new JMenuItem("\u5E2E\u52A9");
			menuItem.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					JOptionPane.showMessageDialog(null, "涂伟俊,17年,深圳,忘记了");
				}
			});
			mnNewMenu_1.add(menuItem);
		}
		/*调戏罢了*/
		private class ForFun implements ActionListener{

			@Override
			public void actionPerformed(ActionEvent e) {
				display.setText("哇，这个按键都被你发现了，厉害了！(╯▽╰)(╯▽╰)(╯▽╰)");
				equal.setEnabled(false);
				clear.setBackground(Color.RED);
			}
			
		}
		/*监听运算符包括点*/
		private class CalculatorListener implements ActionListener{
	
			JTextField display;
			JButton str;
			CalculatorListener(JTextField display, JButton str){
				
				this.display = display;
				this.str = str;
			}
			public void actionPerformed(ActionEvent e) {
				
				StringBuffer s = new StringBuffer(display.getText());
				if(flag){
					display.setText("0");
					flag = false;
				} else if(!(s.length()==0)){
					
					if(!((display.getText().endsWith("+"))||(display.getText().endsWith("-"))||(display.getText().endsWith("X"))||(display.getText().endsWith("/")))){
						//当为无穷和非数字型，清空
						if(display.getText().indexOf("Infinity")!=-1||display.getText().indexOf("NaN")!=-1){
							
							display.setText("0");
						//判断前面的数是不是小数，以决定要不要在它后面加小数点
						}else if(str.getText() == "." && Character.isDigit(s.charAt(s.length()-1)) ){
							int lastIndex = -1;
							Stack<String> stack = new Stack<String>(); 
							for(int i = 0; i<s.length(); i++){
								lastIndex = new CalculatorImpl().readDouble(display.getText(), i);
								stack.push(display.getText().substring(i,lastIndex));
								i = lastIndex;
							}
							String last = stack.pop();
							
							if(last.indexOf(".") == -1){
								s.append(str.getText());
								display.setText(s.toString());
							}
							//普通情况	
						}else if(!display.getText().endsWith(".")){
							s.append(str.getText());
							display.setText(s.toString());
						}
						//当前面是符号时，自动填零
					}else if(str.getText()=="."  &&(s.charAt(s.length()-1) =='+'||
							s.charAt(s.length()-1) =='-'||s.charAt(s.length()-1) =='X'||s.charAt(s.length()-1) =='/') ){
						s.append("0.");
						display.setText(s.toString());
						
					}
				//为空时，按点填零		
				}else if(s.length() == 0 && str.getText() == "."){
					s.append("0.");
					display.setText(s.toString());
				}
			} 
			
		}
		//监听按钮点击事件
		private class ButtonListener implements ActionListener{
	
			JTextField display;
			JButton str;
			ButtonListener(JTextField display, JButton str){
				
				this.display = display;
				this.str = str;
			}
			public void actionPerformed(ActionEvent e) {
				System.out.println(display.getText());
				StringBuffer s = new StringBuffer(display.getText());
				if(flag ){
					display.setText(str.getText());
					System.out.println("!!");
					flag = false;
					
				}else if(display.getText().indexOf("Infinity")!=-1||display.getText().indexOf("NaN")!=-1){
					System.out.println("!1!");
				}else if("0".equals(display.getText())){
					display.setText(str.getText());
				}else{
					display.setText(s+str.getText());
				}	
				
				
				
			}
			
		}
		
		//监听清空事件
		private class ClearListener implements ActionListener{
	
			
			public void actionPerformed(ActionEvent e) {
				System.out.println(display.getText());
				if(!"".equals(display.getText()))
					operate.setText("");
					display.setText("0");
					clear.setBackground(SystemColor.activeCaptionBorder);
					equal.setEnabled(true);
			}
			
		}
		
		//监听删除事件
		private class DeleteListener implements ActionListener{
	
			public void actionPerformed(ActionEvent e) {
				
				String s = display.getText();
				if(s.length()==1){
					display.setText("0");
				}else if(!"".equals(s)&&!"0".equals(s)){
					StringBuffer sb =new StringBuffer(display.getText());		
					sb.deleteCharAt(sb.length()-1);
					display.setText(sb.toString());
					
				}
				
			}
			
		}
		/*计算的监听器*/
		private class ArithmeticListener implements ActionListener{
	
			public void actionPerformed(ActionEvent e) {
				if((display.getText().length()!=0)&&!((display.getText().endsWith("+"))||(display.getText().endsWith("-"))||(display.getText().endsWith("X"))||(display.getText().endsWith("/"))||(display.getText().endsWith(".")))){
					flag = true;
					operate.setText(display.getText());
					try{
						double result = new CalculatorImpl().toReversePolishNotation(display.getText());
						String restr = new Double(result).toString();
						display.setText(restr);
						//使用转换获取js的eval方法计算,做不了太复杂的混合运算例如:8-6/3+6X3+2.056-96/6
//						ScriptEngineManager manager = new ScriptEngineManager();
//						ScriptEngine se = manager.getEngineByName("js");
//						Object result = null;
//						try {
//							result = se.eval(display.getText());
//						} catch (ScriptException e1) {
//							e1.printStackTrace();
//						}
//						display.setText((String)result);
					} catch(NumberFormatException e1){
						display.setText("错误");
					}
					
					
				}	
			}
		}
		
		public JFrame getJFrame(){
			return this.frame;
		}
		
	}