lotterywindow.java

抽奖系统。营销活动现场

//LotteryWindow.java
package com.cy;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.math.*;

public class LotteryWindow extends JWindow {
  JPanel jPanel1 = new JPanel();
  JLabel lbLottery = new JLabel();
  JToggleButton tgbtDraw = new JToggleButton();
  JButton btExit = new JButton();
  JButton btExit1 = new JButton();
  JButton btExit2 = new JButton();
  JToggleButton tgbtDraw1 = new JToggleButton();
  JPanel jPanel2 = new JPanel();
  JPanel jPanel3 = new JPanel();
  BorderLayout borderLayout1 = new BorderLayout();
  BorderLayout borderLayout2 = new BorderLayout();
  JPanel jPanel4 = new JPanel();
  JLabel lbRound = new JLabel();
  JLabel lbUser = new JLabel();
  JLabel jLabel1 = new JLabel();

  int currentAward=0;
  int currentAwardUser=0;

  boolean isLotteryProcessEnd = false;
  boolean isReturnNow = false;

  DrawLots lotsObj;

  Raffle raffleObj;
  MainFrame mainFrame;


  public LotteryWindow(DrawLots lots) {
    try {
      lotsObj = lots;
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    lbLottery.setFont(new java.awt.Font("Dialog", 0, 200));
    lbLottery.setForeground(new Color(255, 79, 0));
    lbLottery.setHorizontalAlignment(SwingConstants.CENTER);
    lbLottery.setText("Ready");
    jPanel1.setLayout(borderLayout1);
    tgbtDraw.setText("Start");
    tgbtDraw.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        tgbtDraw_actionPerformed(e);
      }
    });
    btExit.setText("Exit");
    btExit.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        btExit_actionPerformed(e);
      }
    });


    jPanel2.setLayout(borderLayout2);
    jPanel3.setPreferredSize(new Dimension(125, 55));
    lbUser.setText("User "+ currentAwardUser);
    lbUser.setFont(new java.awt.Font("Dialog", 0, 30));
    lbUser.setToolTipText("");
    lbRound.setFont(new java.awt.Font("Dialog", 0, 30));
    lbRound.setText("Award "+(AppState.roundCount.length-currentAward));
    jLabel1.setText("              ");
    jPanel4.add(lbRound, null);
    jPanel4.add(lbUser, null);
    this.getContentPane().add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jPanel2, BorderLayout.CENTER);
    jPanel2.add(lbLottery, BorderLayout.CENTER);
    jPanel1.add(jPanel3, BorderLayout.SOUTH);
    jPanel3.add(tgbtDraw, null);
    jPanel3.add(btExit, null);
    jPanel1.add(jPanel4, BorderLayout.NORTH);
    jPanel4.add(jLabel1, null);

    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    setSize(screenSize);

    raffleObj = new Raffle();

    raffleObj.lotteryObj = lotsObj;
    raffleObj.setLabel(lbLottery);

  }


  /**
   * 抽奖按钮被按下后，需要按照状态启停抽奖过程
   */
  void tgbtDraw_actionPerformed(ActionEvent e) {
    if (tgbtDraw.isSelected()){
      startRaffle();
      lbUser.setText("User: "+(lotsObj.getCurrentRoundUser()+1));
      lbRound.setText("Award "+(AppState.roundCount.length-lotsObj.currentRound));
      tgbtDraw.setText("Stop");
    }else{
      tgbtDraw.setText("Start");
      // how to let stepToNextDraw()
      stopRaffle();
      raffleObj.lotteryObj.draw(raffleObj.random);
      if (lotsObj.stepToNextDraw()==false){
        tgbtDraw.setEnabled(false);
        raffleEnd();
      }
    }
  }

  /**
   * 退出按钮被选择时候，询问是否本次抽奖结果有效
   */
  void btExit_actionPerformed(ActionEvent e) {
    if (tgbtDraw.isSelected()==true){
      return;
    }
    if (this.isLotteryProcessEnd==false){
      int result = JOptionPane.showConfirmDialog(
        this,
        "Suffle is not end, are you really want to exit ?",
        "Confirm to exit",
        JOptionPane.OK_CANCEL_OPTION);
      if (result == JOptionPane.CANCEL_OPTION) {
        return;
      }
    }else{
      int result = JOptionPane.showConfirmDialog(
      this,
      "Suffle is ended, save the result ?",
      "Warning",
      JOptionPane.OK_CANCEL_OPTION);
      if (result == JOptionPane.OK_OPTION) {
        saveSuffleResult();
      }
    }
    dispose();
  }

  /**
   * 所有的奖项都已经决出
   */
  public void raffleEnd(){
    isLotteryProcessEnd = true;
    JOptionPane.showMessageDialog(this,"All awards are drawed");

  }

  /**
   * 将抽奖结果放入AppState类中的幸运用户集合中
   */
  void saveSuffleResult(){
    int[][] userArray = lotsObj.getLuckyUserArray();
    for (int i = 0; i<userArray.length;i ++){
      for (int j = 0; j<userArray[i].length;j++){
        UserInfo userInfo = (UserInfo)AppState.userList.elementAt(userArray[i][j]);
        LuckyUserInfo luckyUserInfo = new LuckyUserInfo(userInfo,userArray.length-i);
        AppState.luckyUserList.add(luckyUserInfo);
      }
    }
    AppState.mainFrame.resetLuckyUserTable();
  }

  /**
   * 开始摇奖，通过启动线程来进行后台编号的滚动
   */
  public void startRaffle(){
    raffleObj.isRunning=true;
    raffleObj.start();
  }

  /**
   * 停止摇奖，暂停摇奖过程
   */
  public void stopRaffle(){
    raffleObj.pause();
    while(raffleObj.isRunning);
  }


  /**
   * 抽奖线程类
   */
  class Raffle implements Runnable{
    DrawLots lotteryObj;
    JLabel label;
    int random = 0;
    boolean isRunning = true;

    void setLabel(JLabel lb){
      label = lb;
    }

    void setLotteryObj(DrawLots obj){
      lotteryObj = obj;
    }

    void pause(){
      isRunning = false;

    }
    /**
     * 为用户界面显示不断滚动的数字。
     */
    public void run(){
      int sn = 0;
      String name;
      while (isRunning){
        random = lotteryObj.getRandomNumber();
        sn = lotteryObj.getUserSN(random);
        name =lotteryObj.getUserName(random);
        label.setText(sn+"");
        try {
          Thread.sleep(50);
        }
        catch (Exception ex) {
          ex.printStackTrace();
        }
      }
//      think it over , why not can put the draw() method here , it will couse some thread problem
//      lotteryObj.draw(random);
    }

    public void start(){
      Thread thread=new Thread(this);
      thread.start();
    }
  }
}