java记事本源码.doc

package com.java.notepad;import javax.swing.*;import javax.swing.border.Border;import javax.swing.event.MenuEvent;import javax.swing.event.MenuListener;import javax.swing.event.UndoableEditEvent;import javax.swing.event.UndoableEditListener;import javax.swing.filechooser.FileFilter;import java.awt.*;import java.awt.datatransfer.Clipboard;import java.awt.datatransfer.DataFlavor;import java.awt.datatransfer.Transferable;import java.awt.event.*;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.util.Vector;import javax.swing.JDialog;import javax.swing.undo.UndoManager;/* * 记事本 * author WMeng * version 1.0 2012.08.15 * */public class NotePad public static void main(String args)NotePadFrame frame=new NotePadFrame();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);/frame.textArea.requestFocus();frame.textArea.requestFocusInWindow();class NotePadFrame extends JFrame public NotePadFrame()init();public NotePadFrame(int x,int y)this.setLocation(x,y);init();JTextArea textArea=new JTextArea(15,50);JScrollPane scrollPane;JPopupMenu popupmenu;boolean isSave=false;private void init()final UndoManager manager = new UndoManager();textArea.getDocument().addUndoableEditListener(new UndoableEditListener() public void undoableEditHappened(UndoableEditEvent e) manager.addEdit(e.getEdit(); );/设置窗体观感String plaf=com.sun.java.swing.plaf.windows.WindowsLookAndFeel;try UIManager.setLookAndFeel(plaf);SwingUtilities.updateComponentTreeUI(this); catch (ClassNotFoundException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (InstantiationException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (IllegalAccessException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (UnsupportedLookAndFeelException e) / TODO Auto-generated catch blocke.printStackTrace();/UIManager.LookAndFeelInfo infos=UIManager.getInstalledLookAndFeels();/for(UIManager.LookAndFeelInfo i:infos)/System.out.println(i);/获取计算机平铺宽度、高度int screenWidth=Toolkit.getDefaultToolkit().getScreenSize().width;int screenHeight=Toolkit.getDefaultToolkit().getScreenSize().height; Insets screenInsets = Toolkit.getDefaultToolkit().getScreenInsets(this.getGraphicsConfiguration(); /不管任务栏移动桌面什么位置，都可以返回所需要的窗口，也就得到了所需要窗口方形 int width=screenInsets.right; int height=screenInsets.bottom; Image img=Toolkit.getDefaultToolkit().getImage(image/title.png); this.setIconImage(img);this.setTitle(记事本);this.setSize(screenWidth-width)/2,(screenHeight-height)/2);this.setLocation(500,200);x=this.getX();y=this.getY();textArea.setLineWrap(true);/激活自动换行功能textArea.setWrapStyleWord(true);/激活断行不断字功能 /* * 工具栏 */JToolBar toolBar=new JToolBar();JButton xin=new JButton(); xin.setIcon(new ImageIcon(image/toolbar/newFile.png); xin.setToolTipText(新建); xin.addActionListener(new ActionListener() /定义新建组件操作 Override public void actionPerformed(ActionEvent arg0) System.out.println(ok); NotePadFrame f=new NotePadFrame(x+20,y+20); f.setVisible(true); );JButton open=new JButton(); open.setIcon(new ImageIcon(image/toolbar/openFile.png); open.setToolTipText(打开); open.addActionListener(new ActionListener() /定义打开组件操作 Override public void actionPerformed(ActionEvent arg0) chooseToOpen(); );JButton saveFile=new JButton(); saveFile.setIcon(new ImageIcon(image/toolbar/saveFile.png); saveFile.setToolTipText(保存); saveFile.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) chooseToSave(); );JButton copy=new JButton(); copy.setIcon(new ImageIcon(image/toolbar/copy.png); copy.setToolTipText(复制); copy.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.copy(); textArea.requestFocusInWindow(); );JButton cut=new JButton(); cut.setIcon(new ImageIcon(image/toolbar/cut.png); cut.setToolTipText(剪切); cut.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.cut(); textArea.requestFocusInWindow(); );JButton paste=new JButton(); paste.setIcon(new ImageIcon(image/toolbar/paste.png); paste.setToolTipText(粘贴); paste.setEnabled(isClipboardString(); paste.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.paste(); textArea.requestFocusInWindow(); );JButton undo=new JButton(); undo.setIcon(new ImageIcon(image/toolbar/undo.png); undo.setToolTipText(撤销); undo.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) if(manager.canUndo() manager.undo(); textArea.requestFocusInWindow(); else JOptionPane.showOptionDialog(null, 没有可撤销的内容, 错误, JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE, null, null, null); textArea.requestFocusInWindow(); );JButton redo=new JButton(); redo.setIcon(new ImageIcon(image/toolbar/redo.png); redo.setToolTipText(重复); redo.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) if(manager.canRedo() manager.redo(); textArea.requestFocusInWindow(); else JOptionPane.showOptionDialog(null, 没有可重复的内容, 错误, JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE, null, null, null); textArea.requestFocusInWindow(); );/JLabel findLabel=new JLabel(查找);JTextField findTextField=new JTextField();JButton findButton=new JButton(查找);findButton.setIcon(new ImageIcon(image/toolbar/find.png);toolBar.add(xin);toolBar.add(open);toolBar.add(saveFile);toolBar.addSeparator();toolBar.add(copy);toolBar.add(cut);toolBar.add(paste);toolBar.addSeparator();toolBar.add(undo);toolBar.add(redo);toolBar.addSeparator();/toolBar.add(findLabel);toolBar.add(findTextField);toolBar.add(findButton);this.add(toolBar,BorderLayout.NORTH); /* * 菜单栏 */JMenuBar menuBar=new JMenuBar();this.setJMenuBar(menuBar);JMenu file=new JMenu(文件(F);file.setMnemonic(F); JMenuItem newMenuItem=new JMenuItem(新建(N),N); newMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, InputEvent.CTRL_MASK); newMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent arg0) System.out.println(ok); new NotePadFrame(); ); JMenuItem openMenuItem=new JMenuItem(打开(O),O); openMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK); openMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) chooseToOpen(); ); final JMenuItem save=new JMenuItem(保存(S),S); save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK); save.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) chooseToSave(); ); JMenuItem saveAs=new JMenuItem(另存为); saveAs.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) chooseToSave(); ); JMenuItem exit=new JMenuItem(退出); exit.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) System.exit(0); ); file.add(newMenuItem); file.add(openMenuItem); file.add(save); file.add(saveAs); file.addSeparator(); file.add(exit); file.addMenuListener(new MenuListener()Overridepublic void menuCanceled(MenuEvent e) / TODO Auto-generated method stubOverridepublic void menuDeselected(MenuEvent e) / TODO Auto-generated method stubOverridepublic void menuSelected(MenuEvent e) / TODO Auto-generated method stubif(isSave=true)save.setEnabled(false); );JMenu edit=new JMenu(编辑(E);edit.setMnemonic(E); final JMenuItem undoMenuItem=new JMenuItem(撤销(Z),Z); undoMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z, InputEvent.CTRL_MASK); undoMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) manager.undo(); ); final JMenuItem redoMenuItem=new JMenuItem(重复(Y),Y); redoMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Y, InputEvent.CTRL_MASK); redoMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) manager.redo(); ); final JMenuItem cutMenuItem=new JMenuItem(剪切(X),X); cutMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK); cutMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.cut(); ); final JMenuItem copyMenuItem=new JMenuItem(复制(C),C); copyMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK); copyMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.copy(); ); final JMenuItem pasteMenuItem=new JMenuItem(粘贴(P),P); pasteMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK); pasteMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.paste(); ); JMenuItem findMenuItem=new JMenuItem(查找/替换(F),F); findMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK); findMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) ); JMenuItem findNextMenuItem=new JMenuItem(查找下一个(K),K); findNextMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_K, InputEvent.CTRL_MASK); findNextMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) ); JMenuItem selevtAllMenuItem=new JMenuItem(全选(A),A); selevtAllMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, InputEvent.CTRL_MASK); selevtAllMenuItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) textArea.selectAll(); ); edit.add(undoMenuItem); edit.add(redoMenuItem); edit.addSeparator(); edit.add(copyMenuItem); edit.add(cutMenuItem); edit.add(pasteMenuItem); edit.addSeparator(); edit.add(findMenuItem); edit.add(findNextMenuItem); edit.add(selevtAllMenuItem); edit.addMenuListener(new MenuListener()Overridepublic void menuCanceled(MenuEvent arg0) / TODO Auto-generated method stubOverridepublic void menuDeselected(MenuEvent arg0) / TODO Auto-generated method stubOverridepublic void menuSelected(MenuEvent arg0) / TODO Auto-generated method stubcutMenuItem.setEnabled(isCanCopy();copyMenuItem.setEnabled(isCanCopy();pasteMenuItem.setEnabled(isClipboardString();undoMenuItem.setEnabled(manager.canUndo();redoMenuItem.setEnabled(manager.canRedo(););JMenu format=new JMenu(格式(O); format.setMnemonic(O); final JCheckBoxMenuItem autoWrap=new JCheckBoxMenuItem(自动换行); autoWrap.setSelected(true); autoWrap.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) if(autoWrap.isSelected() textArea.setLineWrap(true);/激活自动换行功能 textArea.setWrapStyleWord(true);/激活断行不断字功能 else textArea.setLineWrap(false);/激活自动换行功能 textArea.setWrapStyleWord(false);/激活断行不断字功能 ); JMenuItem font=new JMenuItem(字体(F),F); font.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) fontSet(); ); JMenuItem bgColor=new JMenuItem(背景色(C),C); bgColor.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) final JColorChooser bcolor=new JColorChooser(); JDialog dialog=JColorChooser.createDialog(textArea, 背景色设置,false,bcolor, new ActionListener() public void actionPerformed(ActionEvent e) textArea.setBackground(bcolor.getColor(); ,null); dialog.setResizable(false); dialog.setVisible(true); ); JMenuItem fgColor=new JMenuItem(前景色(K),K); fgColor.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) final JColorChooser bcolor=new JColorChooser(); JDialog dialog=JColorChooser.createDialog(textArea, 前景色设置,false,bcolor, new ActionListener() public void actionPerformed(ActionEvent e) textArea.setForeground(bcolor.getColor(); ,null); dialog.setResizable(false); dialog.setVisible(true); ); format.add(autoWrap); format.add(font); format.addSeparator(); format.add(bgColor); format.add(fgColor);JMenu findlook=new JMenu(查看(V); findlook.setMnemonic(V); JCheckBoxMenuItem status=new JCheckBoxMenuItem(状态栏); JMenuItem wordNumber=new JMenuItem(总字数); wordNumber.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) JDialog wordNumberDialog=new JDialog(); wordNumberDialog.setTitle(总字数); JLabel words=new JLabel(); JLabel lines=new JLabel(); JPanel panel=new JPanel(); words.setText(共有+textArea.getText().length()+字); lines.setText(共+textArea.getLineCount()+行); panel.add(words); panel.add(lines); wordNumberDialog.add(panel); System.out.println(textArea.getText().length(); wordNumberDialog.setSize(200,80); wordNumberDialog.setLocation(x+200,y+200); wordNumberDialog.setVisible(true); ); findlook.add(status); findlook.add(wordNumber);JMenu help=new JMenu(帮助(H); help.setMnemonic(H); JMenuItem about=new JMenuItem(关于记事本); about.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / 显示对话框 JOptionPane.showOptionDialog(null, NotePad+ v1.0n + 程序设计:王盟盟 n + 简介:n + 一个简单的文字编辑器n + 可作为验收Java的实现对象n + 欢迎网友下载研究交流nn + , NotePad, JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE, null, null, null); ); help.add(about); menuBar.add(file);menuBar.add(edit);menuBar.add(format);menuBar.add(findlook);menuBar.add(help); /* * 弹出菜单 */ popupmenu=new JPopupMenu(); final JMenuItem undoPopupItem=new JMenuItem(撤销(Z),Z); undoPopupItem.setAccelerator(KeyStroke.getKeyStroke(ctrl z); undoPopupItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) manager.undo(); ); final JMenuItem redoPopupItem=new JMenuItem(重复(Y),Y); redoPopupItem.setAccelerator(KeyStroke.getKeyStroke(ctrl y); redoPopupItem.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) manager.redo(); ); final JMenuItem cutPopupItem=new JMenuItem(剪切(X),X); cutPopupItem.setAccelerator(KeyStroke.getKe