使用Java编写的绘图板应用程序

/*文件名MainMenuBar.java *定义了一个MainMenuBar类 *建立该应用程序的主菜单，它包含了该应用程序的主要功能 */ package drawing; import java.awt.*; import java.util.*; import java.awt.event.*; import java.io.*; import javax.swing.*; class MainMenuBar extends JMenuBar { public static GraphicsPane p; //用于记录菜单所添加到的JDesktopPane对象 //主菜单的“文件”栏 private JMenu fileMenu; private JMenuItem newItem; private JMenuItem openItem; private JMenuItem closeItem; private JMenuItem closeAItem; private JMenuItem saveAsItem; private JMenuItem saveItem; private JMenuItem saveAItem; private JMenuItem printItem; //private JMenu recentFMenu; private JMenuItem exitItem; //主菜单的“编辑”栏 private JMenu editMenu; private JMenuItem cutItem; private JMenuItem copyItem; private JMenuItem pasteItem; private JMenuItem deleteItem; //主菜单的“颜色”栏 private JMenu colorMenu; private JMenuItem lineColorItem; private JCheckBoxMenuItem paint3D; private JMenuItem paintColorItem; //主菜单的“窗口”栏 private JMenu windowMenu; private String[] layout; //用于保存排列字窗口名称的数组 private String[] modify; //用于保存“正常”，“放大”，“缩小”字符串的数组 private JCheckBoxMenuItem toolBar; //是否显示工具条的菜单条 private JCheckBoxMenuItem grid; //是否显示网格的菜单条 private JCheckBoxMenuItem toolBox; //是否显示工具箱的菜单条 //主菜单的“界面风格”栏 private JMenu pattenMenu; private String[] patten; //用于存储窗口风格的字符串数组 //主菜单的“帮助”栏 private JMenu helpMenu; private JMenuItem helpItem; private JMenuItem aboutItem; //构造函数 public MainMenuBar(GraphicsPane tempPane) { p = tempPane; //////////////////////////////////////////////////////////////// //向主菜单栏中添加“文件”菜单项 fileMenu = new JMenu("文件(F)"); fileMenu.setMnemonic('F'); newItem = new JMenuItem("新建(N)",'N'); newItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK,false)); newItem.setIcon(new ImageIcon("images/new.gif")); newItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { InterFrame interFrame = new InterFrame("新建文件",true,true,true,true,(ToolBox)(p.getParent()).getComponent(2)); interFrame.addInternalFrameListener(new InterFrameAdapter()); //interFrame.pack(); p.add(interFrame); p.addCascade(interFrame); interFrame.setVisible(true); } }); openItem = new JMenuItem("打开...(O)"); openItem.setMnemonic('O'); openItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK,false)); openItem.setIcon(new ImageIcon("images/open.gif")); openItem.addActionListener(new OpenFileAction()); closeItem = new JMenuItem("关闭(C)"); closeItem.setMnemonic('C'); closeItem.setIcon(new ImageIcon("images/close.png")); closeItem.addActionListener(new CloseInterFrame()); closeAItem = new JMenuItem("全部关闭(F)"); closeAItem.setMnemonic('F'); closeAItem.setIcon(new ImageIcon("images/closeAll.gif")); closeAItem.addActionListener(new CloseAllFrame()); saveAsItem = new JMenuItem("另存为..."); saveAsItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.ALT_MASK,false)); saveAsItem.setIcon(new ImageIcon("images/saveas.gif")); saveAsItem.addActionListener(new SaveAsFileAction()); saveItem = new JMenuItem("保存"); saveItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK,false)); saveItem.setIcon(new ImageIcon("images/save.gif")); saveItem.addActionListener(new SaveFileAction()); saveAItem = new JMenuItem("全部保存(S)"); saveAItem.setMnemonic('S'); saveAItem.setIcon(new ImageIcon("images/asave.png")); printItem = new JMenuItem("打印"); printItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P,InputEvent.CTRL_MASK,false)); printItem.setIcon(new ImageIcon("images/print.gif")); //recentFMenu = new JMenu("最近打开文档"); exitItem = new JMenuItem("退出(E)"); exitItem.setMnemonic('E'); exitItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_E,InputEvent.CTRL_MASK,false)); exitItem.setIcon(new ImageIcon("images/exit.gif")); exitItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { //退出系统（可能会抛出异常例如退出时保存文件等等） System.exit(0); } }); fileMenu.add(newItem); fileMenu.add(openItem); fileMenu.add(closeItem); fileMenu.add(closeAItem); fileMenu.addSeparator(); fileMenu.add(saveAsItem); fileMenu.add(saveItem); fileMenu.add(saveAItem); fileMenu.addSeparator(); fileMenu.add(printItem); //fileMenu.add(recentFMenu); fileMenu.addSeparator(); fileMenu.add(exitItem); this.add(fileMenu); ///////////////////////////////////////////////////////////////////// //向主菜单栏中添加“编辑”菜单项 editMenu = new JMenu("编辑(E)"); editMenu.setMnemonic('E'); cutItem = new JMenuItem("剪切(X)",'X'); cutItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.ALT_MASK,false)); cutItem.setIcon(new ImageIcon("images/cut.png")); copyItem = new JMenuItem("复制(C)",'C'); copyItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK,false)); copyItem.setIcon(new ImageIcon("images/copy.png")); pasteItem = new JMenuItem("删除最近绘图(V)",'V'); pasteItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,InputEvent.CTRL_MASK,false)); pasteItem.setIcon(new ImageIcon("images/paste.png")); pasteItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { if(p.getComponentCount() == 0) throw new Exception(); InterFrame iframe = (InterFrame)p.getSelectedFrame(); (iframe.getIPanel()).removeLast(); } catch(Exception exp) { JOptionPane.showMessageDialog(null,"请打开子窗口后再进行操作！"); } } }); deleteItem = new JMenuItem("清空画板(D)",'D'); deleteItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE,0,false)); deleteItem.setIcon(new ImageIcon("images/dele.png")); deleteItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) {