数据结构-停车场模拟管理程序(java)

/* * @(#)ParkSimulation.java 2008-12-20 * * Copyright STF */ package edu.cqit.ParkSimulation; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.FocusEvent; import java.awt.event.FocusListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSplitPane; import javax.swing.JTextField; import javax.swing.UIManager; /** * 停车场模拟程序 * * @author StarFineJade * */ public class ParkSimulation extends JFrame { private static final long serialVersionUID = 8599911300306837419L; /** 标示动态演示间隔时间 */ final static int WAIT_TIME = 500; // // 存放汽车信息的储存空间 // /** <i>便道</i>上的<b>汽车信息</b>的储存空间 */ private LinkedQueue<Car> pavement; /** <i>停车场</i>中<b>汽车信息</b>的存储空间 */ private Stack<Car> stopping; /** <i>辅助停车位</i>中<b>汽车信息</b>的存储空间 */ private Stack<Car> buffer; // // 控制汽车进出停车场的组件 // /** 用于<b>控制</b>汽车<em>进入</em><i>停车场</i> */ private JButton comeBtn = new JButton("come"); /** 用于<b>控制</b>汽车<em>离开</em><i>停车场</i> */ private JButton leaveBtn = new JButton("leave"); // 显示汽车信息的组件 /** 用于<b>显示</b>汽车<i>车牌号</i> */ private JTextField carLicenseTf = new JTextField(10); /** 用于<b>显示</b>汽车<i>当前位置</i> */ private JTextField carStateTf = new JTextField(10); /** 用于<b>显示</b>汽车<em>进出</em><i>停车场</i>的详细信息 */ private MessagePanel ta = new MessagePanel(); // // 动态演示部分 // /** 用于<em>模拟</em><i>停车场</i> */ private StopPanel stoppingArea; /** 用于<em>模拟</em><i>便道</i> */ private StopPanel pavementArea; /** 用于<em>模拟</em><i>停车场</i>中的汽车 */ private ImageButton[] stopBtns; /** 用于<em>模拟</em><i>便道</i>中的汽车 */ private ImageButton[] paveBtns; /** 用于指示<i>停车场</i>中<strong>最后一辆</strong>汽车的停放位置 */ private int stopPos = 0; /** 用于指示<i>便道</i>中<strong>最后一辆</strong>汽车的停放位置 */ private int pavePos = 0; /** 用于表示<i>停车场</i>中<b>准备离开</b>的汽车的停放位置 */ private int leaveCarPos = -1; /** 指示<i>停车场</i>中可停放汽车的<b>数量</b> */ private int STOPPING_CAPACITY = 7; /* * 初始化组件 */ private void init() { stoppingArea = new StopPanel(new JLabel("停车场", JLabel.CENTER), STOPPING_CAPACITY); pavementArea = new StopPanel(new JLabel("便道", JLabel.CENTER), STOPPING_CAPACITY); stopBtns = new ImageButton[STOPPING_CAPACITY]; paveBtns = new ImageButton[STOPPING_CAPACITY]; ta.initialize(); ActionListener stopListener = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { final int SELECT_POS = Integer.parseInt(e.getActionCommand()); if (SELECT_POS < stopPos) { leaveCarPos = SELECT_POS; Car c = stopping.getEementAt(SELECT_POS); carLicenseTf.setText(c.getLicensePlate()); carStateTf.setText("停车场"+(SELECT_POS+1)+"车位"); } } }; ActionListener paveListener = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { final int SELECT_POS = Integer.parseInt(e.getActionCommand()); if (SELECT_POS < pavePos) { leaveCarPos = -1; Car c = pavement.getElementAt(SELECT_POS); carLicenseTf.setText(c.getLicensePlate()); carStateTf.setText("便道"+(SELECT_POS+1)+"车位"); } } }; for (int i = 0; i < STOPPING_CAPACITY; i++) { stopBtns[i] = new ImageButton(""+(i+1)); stopBtns[i].setActionCommand(""+i); stopBtns[i].setForeground(Color.RED); stopBtns[i].addActionListener(stopListener); paveBtns[i] = new ImageButton("empty"); paveBtns[i].setActionCommand(""+i); paveBtns[i].setForeground(Color.BLUE); paveBtns[i].addActionListener(paveListener); stoppingArea.addButton(stopBtns[i]); pavementArea.addButton(paveBtns[i]); } ActionListener l = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if ("come".equals(e.getActionCommand())) { if ("".equals(carStateTf.getText())) { String carL = carLicenseTf.getText(); if (! "".equals(carL)) { carCome(carL); } } } else if ("leave".equals(e.getActionCommand())) { if (leaveCarPos != -1) { carLeave(leaveCarPos); leaveCarPos = -1; } } } }; leaveBtn.setActionCommand("leave"); comeBtn.setActionCommand("come"); carLicenseTf.setActionCommand("come"); leaveBtn.addActionListener(l); comeBtn.addActionListener(l); carStateTf.setEditable(false); carLicenseTf.addActionListener(l); carLicenseTf.addFocusListener(new FocusListener() { @Override public void focusGained(FocusEvent e) { carLicenseTf.setText(""); carStateTf.setText(""); leaveCarPos = -1; } @Override public void focusLost(FocusEvent e) { // carLicenseTf.setText(""); // carStateTf.setText(""); } }); } private void display() { // // 布置组件 // Container c = getContentPane(); JPanel rightP = new JPanel(); c.setLayout(new BorderLayout()); rightP.setLayout(new GridLayout(1, 2)); rightP.add(stoppingArea); rightP.add(pavementArea); JLabel carLicenseL = new JLabel("车牌号(N):"); JLabel carStateL = new JLabel("状态(S):"); carLicenseL.setDisplayedMnemonic('N'); carLicenseL.setLabelFor(carLicenseTf); carStateL.setDisplayedMnemonic('S'); carStateL.setLabelFor(carStateTf); JPanel bottomP = new JPanel(); GridBagLayout gbl = new GridBagLayout(); GridBagConstraints gbc = new GridBagConstraints(); bottomP.setLayout(gbl); gbl.setConstraints(carLicenseL, gbc); gbl.setConstraints(carLicenseTf, gbc); bottomP.add(carLicenseL); bottomP.add(carLicenseTf); gbc.gridwidth = GridBagConstraints.REMAINDER; gbl.setConstraints(comeBtn, gbc); bottomP.add(comeBtn); gbc.gridwidth = 1; gbl.setConstraints(carStateL, gbc); gbl.setConstraints(carStateTf, gbc); bottomP.add(carStateL); bottomP.add(carStateTf); gbc.gridwidth = GridBagConstraints.REMAINDER; gbl.setConstraints(leaveBtn, gbc); bottomP.add(leaveBtn); JSplitPane leftPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, true); leftPane.add(new JScrollPane(ta, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS)); leftPane.add(new JScrollPane(bottomP)); leftPane.setDividerLocation(238); JSplitPane splitPane = new JSplitPane( JSplitPane.HORIZONTAL_SPLIT, true); splitPane.add(leftPane); splitPane.add(rightP); splitPane.setDividerLocation(335); c.add(splitPane, BorderLayout.CENTER); } /** * 构建一个默认大小的<i>停车场</i>，容量为7. */ public ParkSimulation() { this(7); } /** * 构建一个指定大小的<i>停车场</i>。 * @param stopCapacity 停车场容量 */ public ParkSimulation(int stopCapacity) { STOPPING_CAPACITY = stopCapacity; initBuffer(); initPavement(); initStopping(); init(); display(); setSize(560, 350); setDefaultCloseOperation(EXIT_ON_CLOSE); } /** * 显示欢迎信息。 */ public void welcome() { String msg = "欢迎使用本程序\n有车要进入停车场请输入车牌号然后点击\"come\"" + "\n有车要离开停车场请点击窗口右边待离开的汽车，然后点击\"leave\""; JOptionPane.showMessageDialog(this, msg); } /** * 测试停车场是否已满。