import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.UIManager;

public class SimpleDraw extends JFrame{

    private static final long serialVersionUID = 1L;
    private static final int FASTSPEED = 10;//10ms跳动一次
    private static final int NORMALSPEED = 100;//100ms跳动一次
    private static final int SLOWSPEED = 1000;//1000ms跳动一次
    //以上参数可自行修改
    
    private Container content = null;
    private JButton btnStart = null;
    private JLabel labNum = null;
    private JLabel labRank = null;
    private JPanel pnlMain = null;
    private JMenuBar menuBar = null;
    private JCheckBoxMenuItem fastItem = null;
    private JCheckBoxMenuItem normalItem = null;
    private JCheckBoxMenuItem slowItem = null;
    
    private Vector<String> waiting = null;
    private Vector<String> done = null;
    private Random random = null;
    private Timer timer = null;
    private TimerTask task = null;
    private int speed = FASTSPEED;
    private int drawNum = -1;
    private boolean running = false;

    public SimpleDraw() {
        setSize(800,600);
        setTitle("SimpleDraw");
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        initialize();
    }
    
    private void initialize() {
        waiting = new Vector<String>(0);
        done = new Vector<String>(0);
        Font font = new Font("Dialog",Font.PLAIN,12);
        UIManager.put("MenuBar.font",font);
        UIManager.put("Menu.font",font);
        UIManager.put("CheckBoxMenuItem.font",font);
        content = getContentPane();
        pnlMain = new JPanel();
        btnStart = new JButton("开始");
        labNum = new JLabel("0", SwingConstants.CENTER);
        labRank = new JLabel("三等奖", SwingConstants.CENTER);
        btnStart.setFont(new Font("宋体", Font.PLAIN, 50));
        btnStart.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                if (waiting.size()>0) {
                    if (running) {
                        btnStart.setText("开始");
                        running = false;
                        if (timer != null) {
                            timer.cancel();
                            timer = null;
                        }
                        done.add(waiting.get(drawNum));
                        waiting.remove(drawNum);
                    } else {
                        btnStart.setText("停止");
                        running = true;
                        if (timer == null) {
                            timer = new Timer();
                            task = new TimerTask() {
                                public void run(){
                                    if (running && waiting.size()>0) {
                                        drawNum = random.nextInt(waiting.size());
                                        labNum.setText(waiting.get(drawNum));
                                    }
                                }
                            };
                            timer.schedule(task, 0, speed);
                        }
                        if (done.size() == 5) {
                            labRank.setText("二等奖");
                        } else if (done.size() == 8) {
                            labRank.setText("一等奖");
                        }
                    }
                } else {
                    labNum.setText("已经抽完！");
                }
            }
        });
        labNum.setFont(new Font("宋体", Font.PLAIN, 120));
        labNum.setPreferredSize(new Dimension(670,120));
        labNum.setMinimumSize(new Dimension(670,120));
        labNum.setBorder(BorderFactory.createEtchedBorder());
        labRank.setFont(new Font("宋体", Font.PLAIN, 120));
        labRank.setPreferredSize(new Dimension(670,120));
        labRank.setMinimumSize(new Dimension(670,120));
        labRank.setBorder(BorderFactory.createEtchedBorder());
        GridBagLayout gridbag = new GridBagLayout();
        GridBagConstraints c = new GridBagConstraints();
        pnlMain.setLayout(gridbag);
        c.gridx = 0;
        c.weighty = 1.0;
        c.weightx = 1.0;
        gridbag.setConstraints(btnStart, c);
        pnlMain.add(btnStart);
        c.weighty = 5.0;
        c.gridy = 10;
        gridbag.setConstraints(labNum, c);
        pnlMain.add(labNum);
        c.gridy = 20;
        gridbag.setConstraints(labRank, c);
        pnlMain.add(labRank);
        content.add(pnlMain);
        makeMenuBar();
        for (int i=1;i<101;i++) {
            waiting.add("" + i);
        }
        random = new Random();
    }
    
    private void makeMenuBar() {
        if (menuBar == null) {
            menuBar = new JMenuBar();
            menuBar.setBorder(null);
            setJMenuBar(menuBar);
            JMenu menu;
            menu = new JMenu("速度");
            fastItem = new JCheckBoxMenuItem("快", true);
            normalItem = new JCheckBoxMenuItem("中", false);
            slowItem = new JCheckBoxMenuItem("慢", false);
            menu.add(fastItem);
            menu.add(normalItem);
            menu.add(slowItem);
            menuBar.add(menu);
            fastItem.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e) {
                    speed = FASTSPEED;
                    fastItem.setSelected(true);
                    normalItem.setSelected(false);
                    slowItem.setSelected(false);
                }
            });
            normalItem.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e) {
                    speed = NORMALSPEED;
                    fastItem.setSelected(false);
                    normalItem.setSelected(true);
                    slowItem.setSelected(false);
                }
            });
            slowItem.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e) {
                    speed = SLOWSPEED;
                    fastItem.setSelected(false);
                    normalItem.setSelected(false);
                    slowItem.setSelected(true);
                }
            });
        }
    }

    public static void main(String arg[]) {
        SimpleDraw luckydraw = new SimpleDraw();
        luckydraw.setVisible(true);
    }

}