package com.Menu;
import java.awt.Color;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Stack;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import com.service.CalculatorImpl;
/**
* 显示主类,由Main类替代
* @deprecated
* @author Administrator
* @version 1.0
* */
public class Menu extends JFrame{
//final static char[] buttons = {'1','2','3','4','5','6','7','8','9','0','.','X','/','+','-','c'};
/**
*
*/
private static final long serialVersionUID = -7188167484034129975L;
private JButton add;
private JButton reduce;
private JButton multiple;
private JButton divide;
private JButton equal;
private JButton num0;
private JButton delete;
private JTextArea display;
private JButton point;
private JPanel jp;
private JButton clear;
private JMenu jm;
private JMenuBar jmb;
private JMenuItem jmi1;
private JMenuItem jmi2;
public void init(){
//Jframe的布局，大小，及事件
this.setSize(350, 570);
jp = new JPanel();
display = new JTextArea("");
display.setEnabled(false);
add = new JButton("+");
reduce = new JButton("-");
multiple = new JButton("X");
divide = new JButton("/");
num0 = new JButton("0");
for(int i = 1; i<10; i++){
JButton num = new JButton(""+i+"");
num.setFont(new Font("宋体",Font.BOLD,24));
jp.add(num);
num.addActionListener(new ButtonListener(display, num));
}
delete = new JButton("删除");
equal = new JButton("=");
point = new JButton(".");
clear = new JButton("c");
jmi1 = new JMenuItem("帮助");
jmi2 = new JMenuItem("打开");
jmb = new JMenuBar();
jm = new JMenu("关于");
jm.add(jmi1);
jm.add(jmi2);
jmb.add(jm);
this.setJMenuBar(jmb);
jp.setLayout(new GridLayout(3,3,20,20));
jp.setBounds(10, 170, 210, 210);
delete.setFont(new Font("宋体",Font.BOLD,24));
equal.setFont(new Font("宋体",Font.BOLD,24));
point.setFont(new Font("宋体",Font.BOLD,24));
clear.setFont(new Font("宋体",Font.BOLD,24));
display.setFont(new Font("宋体",Font.BOLD,24));
display.setForeground(Color.BLACK);
//添加监听器
clear.addActionListener(new ClearListener());
num0.addActionListener(new ButtonListener(display,num0));
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());
//设置个组件的位置大小
display.setBounds(10, 30, 310, 50);
add.setBounds(250, 235, 70, 60);
reduce.setBounds(250, 170, 70, 60);
multiple.setBounds(87, 100, 55, 55);
divide.setBounds(164, 100, 55, 55);
delete.setBounds(250, 100, 70, 60);
equal.setBounds(250, 320, 70, 125);
num0.setBounds(10, 390, 135, 55);
point.setBounds(164,390, 55, 55);
clear.setBounds(10, 100, 55, 55);
//将组件添加到JFrame
this.add(add);
this.add(reduce);
this.add(multiple);
this.add(divide);
this.add(display);
this.add(delete);
this.add(equal);
this.add(num0);
this.add(point);
this.add(clear);
this.add(jp);
this.setLayout(null);//设置布局
this.setLocationRelativeTo(null);//设置相对位置
this.setDefaultCloseOperation(EXIT_ON_CLOSE);//关闭操作
this.setVisible(true);//可视化JFrame
this.setFont(new Font("宋体",Font.BOLD,20));//设置字体
this.setResizable(false);//不允许用户改变界面大小
}
/*监听运算符包括点*/
private class CalculatorListener implements ActionListener{
JTextArea display;
JButton str;
CalculatorListener(JTextArea display, JButton str){
this.display = display;
this.str = str;
}
public void actionPerformed(ActionEvent e) {
StringBuffer s = new StringBuffer(display.getText());
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{
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{
JTextArea display;
JButton str;
ButtonListener(JTextArea display, JButton str){
this.display = display;
this.str = str;
}
public void actionPerformed(ActionEvent e) {
StringBuffer s = new StringBuffer(display.getText());
if(display.getText().indexOf("Infinity")!=-1||display.getText().indexOf("NaN")!=-1){
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()))
display.setText("0");
}
}
//监听删除事件
private class DeleteListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
String s = display.getText();
if(!"".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(".")))){
double result = new CalculatorImpl().toReversePolishNotation(display.getText());
String restr = new Double(result).toString();
display.setText(restr);
}
}
}
public static void main(String[] args) {
new Menu().init();
}
}
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