package com.yyj.nodepad.view; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.Container; import java.awt.Dimension; import java.awt.Event; import java.awt.EventQueue; import java.awt.FlowLayout; import java.awt.Font; import java.awt.Graphics; import java.awt.GridLayout; import java.awt.PrintJob; import java.awt.datatransfer.Clipboard; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.StringSelection; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.InputEvent; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.print.PageFormat; import java.awt.print.PrinterJob; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.util.Calendar; import java.util.GregorianCalendar; import javax.swing.BorderFactory; import javax.swing.ButtonGroup; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JCheckBoxMenuItem; import javax.swing.JColorChooser; import javax.swing.JDialog; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPopupMenu; import javax.swing.JRadioButton; import javax.swing.JScrollPane; import javax.swing.JSeparator; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.JToolBar; import javax.swing.KeyStroke; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.border.EmptyBorder; import javax.swing.event.CaretEvent; import javax.swing.event.CaretListener; import javax.swing.undo.UndoManager; import com.yyj.nodepad.util.Clock; import com.yyj.nodepad.util.MQFontChooser; import com.yyj.nodepad.util.SystemParam; import com.yyj.nodepad.util.TestLine; public class NotepadMainFrame extends JFrame implements ActionListener{ /** * 序列号 */ private static final long serialVersionUID = 8585210209467333480L; //内容面板 private JPanel contentPane; //编辑区 private JTextArea textArea; //打开菜单项 private JMenuItem itemOpen; //保存菜单项 private JMenuItem itemSave; //1：新建 //2：修改过 //3：保存过的 int flag=0; //当前文件名 String currentFileName=null; PrintJob p=null;//声明一个要打印的对象 Graphics g=null;//要打印的对象 //当前文件路径 String currentPath=null; //背景颜色 JColorChooser jcc1=null; Color color=Color.BLACK; //文本的行数和列数 int linenum = 1; int columnnum = 1; //撤销管理器 public UndoManager undoMgr = new UndoManager(); //剪贴板 public Clipboard clipboard = new Clipboard("系统剪切板"); private JMenuItem itemSaveAs; //另存为 private JMenuItem itemNew; //新建 private JMenuItem itemPage; //页面设置 private JSeparator separator; //分隔线 private JMenuItem itemPrint; //打印 private JMenuItem itemExit; //退出 private JSeparator separator_1; //分隔线 private JMenu itemEdit; //编辑 private JMenu itFormat; //格式 private JMenu itemCheck; //查看 private JMenu itemHelp; //帮助 private JMenuItem itemSearchForHelp; //查看帮助 private JMenuItem itemAboutNotepad; //关于记事本 private JMenuItem itemUndo; //撤销 private JMenuItem itemCut; //剪切 private JMenuItem itemCopy; //复制 private JMenuItem itemPaste; //粘贴 private JMenuItem itemDelete; //删除 private JMenuItem itemFind; //查找 private JMenuItem itemFindNext; //查找下一个 private JMenuItem itemReplace; //替换 private JMenuItem itemTurnTo; //转到 private JMenuItem itemSelectAll; //全选 private JMenuItem itemTime; //日期/时间 private JMenuItem itemFont; //字体 private JMenuItem itemColor; //字体颜色 private JMenuItem itemFontColor; //背景颜色 private JCheckBoxMenuItem itemNextLine; //自动换行 private JScrollPane scrollPane; //滚动栏 private JCheckBoxMenuItem itemStatement; //状态栏 private JToolBar toolState; public static JLabel label1; private JLabel label2; private JLabel label3; int length=0; int sum=0; /** * 主函数 */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { NotepadMainFrame frame = new NotepadMainFrame(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } GregorianCalendar c=new GregorianCalendar(); int hour=c.get(Calendar.HOUR_OF_DAY); int min=c.get(Calendar.MINUTE); int second=c.get(Calendar.SECOND); private JPopupMenu popupMenu; //右键弹出菜单 private JMenuItem popM_Undo; //撤销 private JMenuItem popM_Cut; //剪切 private JMenuItem popM_Copy; //复制 private JMenuItem popM_Paste; //粘贴 private JMenuItem popM_Delete; //删除 private JMenuItem popM_SelectAll; //全选 private JMenuItem popM_toLeft; //从右到左的阅读顺序 private JMenuItem popM_showUnicode; //显示Unicode控制字符 private JMenuItem popM_closeIMe; //关闭IME private JMenuItem popM_InsertUnicode; //插入Unicode控制字符 private JMenuItem popM_RestartSelect; //汉字重选 private JSeparator separator_2; //分隔线 private JSeparator separator_3; //分隔线 private JSeparator separator_4; //分隔线 private JSeparator separator_5; //分隔线 private JMenuItem itemRedo; //恢复 private JSeparator separator_6; //分隔线 private JSeparator separator_7; //分隔线 private JSeparator separator_8; //分隔线 private JMenuItem popM_Redo; //恢复 /** * Create the frame. * 构造函数 */ public NotepadMainFrame() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (InstantiationException e1) { e1.printStackTrace(); } catch (IllegalAccessException e1) { e1.printStackTrace(); } catch (UnsupportedLookAndFeelException e1) { e1.printStackTrace(); } setTitle("无标题"); setDefaultCloseOperation(DO_NOTHING_ON_CLOSE); setBounds(100, 100, 721, 772); JMenuBar menuBar = new JMenuBar(); setJMenuBar(menuBar); JMenu itemFile = new JMenu("文件(F)"); itemFile.setMnemonic('F'); //设置快捷键"F" menuBar.add(itemFile); itemNew = new JMenuItem("新建(N)",'N'); itemNew.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_N, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"N" itemNew.addActionListener(this); itemFile.add(itemNew); itemOpen = new JMenuItem("打开(O)",'O'); itemOpen.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"O" itemOpen.addActionListener(this); itemFile.add(itemOpen); itemSave = new JMenuItem("保存(S)"); itemSave.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"S" itemSave.addActionListener(this); itemFile.add(itemSave); itemSaveAs = new JMenuItem("另存为(A)"); itemSaveAs.addActionListener(this); itemFile.add(itemSaveAs); separator = new JSeparator(); //添加分隔线 itemFile.add(separator); itemPage = new JMenuItem("页面设置(U)",'U'); itemPage.addActionListener(this); itemFile.add(itemPage); itemPrint = new JMenuItem("打印(P)...",'P'); itemPrint.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_P, java.awt.Event.CTRL_MASK)); //置快捷键Ctrl+"P" itemPrint.addActionListener(this); itemFile.add(itemPrint); separator_1 = new JSeparator(); itemFile.add(separator_1); itemExit = new JMenuItem("退出(X)",'X'); itemExit.addActionListener(this); itemFile.add(itemExit); itemEdit = new JMenu("编辑(E)"); itemEdit.setMnemonic('E'); menuBar.add(itemEdit); itemUndo = new JMenuItem("撤销(U)",'U'); itemUndo.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_Z, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"Z" itemUndo.addActionListener(this); itemEdit.add(itemUndo); itemRedo = new JMenuItem("恢复(R)"); itemRedo.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_R, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"R" itemRedo.addActionListener(this); itemEdit.add(itemRedo); itemCut = new JMenuItem("剪切(T)",'T'); itemCut.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_X, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"X" itemCut.addActionListener(this); separator_6 = new JSeparator(); itemEdit.add(separator_6); itemEdit.add(itemCut); itemCopy = new JMenuItem("复制(C)",'C'); itemCopy.addActionListener(this); itemCopy.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_C, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"C" itemEdit.add(itemCopy); itemPaste = new JMenuItem("粘贴(P)",'P'); itemPaste.addActionListener(this); itemPaste.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_V, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"V" itemEdit.add(itemPaste); itemDelete = new JMenuItem("删除(L)",'L'); itemDelete.addActionListener(this); itemDelete.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_D, InputEvent.CTRL_MASK)); //设置快捷键Ctrl+"D" itemEdit.add(itemDelete); separator_7 = new JSeparator(); itemEdit.add(separator_7); itemFind = new JMenuItem("查找(F)",'F'); itemFind.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, Event.CTRL_MASK)); //设置快捷键Ctrl+"F" itemFind.addActionListener(this); itemEdit.add(itemFind); itemFindNext = new JMenuItem("查找下一个(N)",'N'); itemFindNext.setAccelerator(KeyStroke.getKeyStroke("F3")); itemFindNext.addActionListener(this); itemEdit.add(itemFindNext); itemReplace = new JMenuItem("替换(R)",'R'); itemReplace.addActionListener(this); itemReplace.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H, Event.CTRL_MASK)); //设置快捷键Ctrl+"H" itemEdit.add(itemReplace); itemTurnTo = new JMenuItem("转到(G)",'G'); itemTurnTo.addActionListener(this); itemTurnTo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_G, Event.CTRL_MASK)); //设置快捷键Ctrl+"G" itemEdit.add(itemTurnTo); itemSelectAll = new JMenuItem("全选(A)",'A'); itemSelectAll.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_A, java.awt.Event.CTRL_MASK)); //设置快捷键Ctrl+"A" itemSelectAll.addActionListener(this); separator_8 = new JSeparator(); itemEdit.add(separator_8); itemEdit.add(itemSelectAll); itemTime = new JMenuItem("时间/日期(D)",'D'); itemTime.addActionListener(this); itemTime.setAccelerator(KeyStroke.getKeyStroke("F5")); itemEdit.add(itemTime); itFormat = new JMenu("格式(O)"); itFormat.setMnemonic('O'); menuBar.add(itFormat); itemNextLine = new JCheckBoxMenuItem("自动换行(W)"); itemNextLine.addActionListener(this); itFormat.add(itemNextLine); itemFont = new JMenuItem("字体大小(F)..."); itemFont.addActionListener(this); itFormat.add(itemFont); itemColor = new JMenuItem("背景颜色(C)..."); itemColor.addActionListener(this); itFormat.add(itemColor); itemFontColor = new JMenuItem("字体颜色(I)..."); itemFontColor.addActionListener(this); itFormat.add(itemFontColor); itemCheck = new JMenu("查看(V)"); itemCheck.setMnemonic('V'); menuBar.add(itemCheck); itemStatement = new JCheckBoxMenuItem("状态栏(S)"); itemStatement.addActionListener(this); itemCheck.add(itemStatement); itemHelp = new JMenu("帮助(H)"); itemHelp.setMnemonic('H'); menuBar.add(itemHelp); itemSearchForHelp = new JMenuItem("查看帮助(H)",'H'); itemSearchForHelp.addActionListener(this); itemHelp.add(itemSearchForHelp); itemAboutNotepad = new JMenuItem("关于记事本(A)",'A'); itemAboutNotepad.addActionListener(this); itemHelp.add(itemAboutNotepad); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); //设置边框布局 contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane); textArea = new JTextArea(); //VERTICAL垂直 HORIZONTAL水平 scrollPane = new JScrollPane(textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); //contentPane2=new JPanel(); //contentPane2.setSize(10,textArea.getSize().height); //contentPane.add(contentPane2, BorderLayout.WEST); TestLine view = new TestLine(); //添加行号 scrollPane.setRowHeaderView(view); popupMenu = new JPopupMenu(); addPopup(textArea, popupMenu); popM_Undo = new JMenuItem("撤销(U)"); popM_Undo.addActionListener(this); popupMenu.add(popM_Undo); popM_Redo = new JMenuItem("恢复(R)"); popM_Redo.addActionListener(this); popupMenu.add(popM_Redo); separator_2 = new JSeparator(); popupMenu.add(separator_2); popM_Cut = new JMenuItem("剪切(T)"); popM_Cut.addActionListener(this); popupMenu.add(popM_Cut); popM_Copy = new JMenuItem("复制(C)"); popM_Copy.addActionListener(this); popupMenu.add(popM_Copy); popM_Paste = new JMenuItem("粘贴(P)"); popM_Paste.addActionListener(this); popupMenu.add(popM_Paste); popM_Delete = new JMenuItem("删除(D)"); popM_Delete.addActionListener(this); popupMenu.add(popM_Delete); separator_3 = new JSeparator(); popupMenu.add(separator_3); popM_SelectAll = new JMenuItem("全选(A)"); popM_SelectAll.addActionListener(this); popupMenu.add(popM_SelectAll); separator_4 = new JSeparator(); popupMenu.add(separator_4); popM_toLeft = new JMenuItem("从右到左的阅读顺序(R)"); popM_toLeft.addActionListener(this); popupMenu.add(popM_toLeft); popM_showUnicode = new JMenuItem("显示Unicode控制字符(S)"); popM_showUnicode.addActionListener(this); popupMenu.add(popM_showUnicode); popM_InsertUnicode = new JMenuItem("插入Unicode控制字符(I)"); popM_InsertUnicode.addActionListener(this); popupMenu.add(popM_InsertUnicode); separator_5 = new JSeparator(); popupMenu.add(separator_5); popM_closeIMe = new JMenuItem("关闭IME(L)"); popM_closeIMe.addActionListener(this); popupMenu.add(popM_closeIMe); popM_RestartSelect = new JMenuItem("汉字重选(R)"); popM_RestartSelect.addActionListener(this); popupMenu.add(popM_RestartSelect); //添加到面板中【中间】 contentPane.add(scrollPane, BorderLayout.CENTER); //添加撤销管理器 textArea.getDocument().addUndoableEditListener(undoMgr); //设置状态栏 toolState = new JToolBar(); toolState.setSize(textArea.getSize().width, 10);//toolState.setLayout(new FlowLayout(FlowLayout.LEFT)); label1 = new JLabel(" 当前系统时间：" + hour + ":" + min + ":" + second+" "); toolState.add(label1); //添加系统时间 toolState.addSeparator(); label2 = new JLabel(" 第 " + linenum + " 行, 第 " + columnnum+" 列 "); toolState.add(label2); //添加行数列数 toolState.addSeparator(); label3 = new JLabel(" 一共 " +length+" 字 "); toolState.add(label3); //添加字数统计 textArea.addCaretListener(new CaretListener() { //记录行数和列数 public void caretUpdate(CaretEvent e) { //sum=0; JTextArea editArea = (JTextArea)e.getSource(); try { int caretpos = editArea.getCaretPosition(); linenum = editArea.getLineOfOffset(caretpos); columnnum = caretpos - textArea.getLineStartOffset(linenum); linenum += 1; label2.setText(" 第 " + linenum + " 行, 第 " + (columnnum+1)+" 列 "); //sum+=columnnum+1; //length+=sum; length=NotepadMainFrame.this.textArea.getText().toString().length(); label3.setText(" 一共 " +length+" 字 "); } catch(Exception ex) { } }}); contentPane.add(toolState, BorderLayout.SOUTH); //将状态栏添加到面板上 toolState.setVisible(true); toolState.setFloatable(false); Clock clock=new Clock(); clock.start();//开启时钟线程 // 创建弹出菜单 final JPopupMenu jp=new JPopupMenu(); //创建弹出式菜单，下面三项是菜单项 textArea.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if(e.getButton()==MouseEvent.BUTTON3)//只响应鼠标右键单击事件 { jp.show(e.getComponent(),e.getX(),e.getY());//在鼠标位置显示弹出式菜单 } } }); isChanged(); this.MainFrameWidowListener(); } /*===============================1====================================*/ /** * 是否有变化 */ private void isChanged() { textArea.addKeyListener(new KeyAdapter() { @Override public void keyTyped(KeyEvent e) { //在这里我进行了对使用快捷键，但是没有输入字符却没有改变textArea中内容的判断 Character c=e.getKeyChar(); if(c != null && !textArea.getText().toString().equals("")){ flag=2; } } }); } /*===================================================================*/ /*===============================2====================================*/ /** * 新建的或保存过的退出只有两个选择 */ private void MainFrameWidowListener() { this.addWindowListener(new WindowAdapter(){ @Override public void windowClosing(WindowEvent e) { if(flag==2 && currentPath==null){ //这是弹出小窗口 //1、（刚启动记事本为0，刚新建文档为1）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到无标题?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ NotepadMainFrame.this.saveAs(); }else if(result==JOptionPane.NO_OPTION){ NotepadMainFrame.this.dispose(); NotepadMainFrame.this.setDefaultCloseOperation(EXIT_ON_CLOSE); } }else if(flag==2 && currentPath!=null){ //这是弹出小窗口 //1、（刚启动记事本为0，刚新建文档为1）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到"+currentPath+"?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ NotepadMainFrame.this.save(); }else if(result==JOptionPane.NO_OPTION){ NotepadMainFrame.this.dispose(); NotepadMainFrame.this.setDefaultCloseOperation(EXIT_ON_CLOSE); } }else{ //这是弹出小窗口 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "确定关闭？", "系统提示", JOptionPane.YES_NO_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ NotepadMainFrame.this.dispose(); NotepadMainFrame.this.setDefaultCloseOperation(EXIT_ON_CLOSE); } } } }); } /*===================================================================*/ /*==============================3=====================================*/ /** * 行为动作 */ public void actionPerformed(ActionEvent e) { if(e.getSource()==itemOpen){ //打开 openFile(); }else if(e.getSource()==itemSave){ //保存 //如果该文件是打开的，就可以直接保存 save(); }else if(e.getSource()==itemSaveAs){ //另存为 saveAs(); }else if(e.getSource()==itemNew){ //新建 newFile(); }else if(e.getSource()==itemExit){ //退出 exit(); }else if(e.getSource()==itemPage){ //页面设置 ///页面设置，百度到的，不知道具体的用法 PageFormat pf = new PageFormat(); PrinterJob.getPrinterJob().pageDialog(pf); }else if(e.getSource()==itemPrint){ //打印 //打印机 Print(); }else if(e.getSource()==itemUndo || e.getSource()==popM_Undo){ //撤销 if(undoMgr.canUndo()){ undoMgr.undo(); } }else if(e.getSource()==itemRedo || e.getSource()==popM_Redo){ //恢复 if(undoMgr.canRedo()){ undoMgr.redo(); } }else if(e.getSource()==itemCut || e.getSource()==popM_Cut){ //剪切 cut(); }else if(e.getSource()==itemCopy || e.getSource()==popM_Copy){ //复制 copy(); }else if(e.getSource()==itemPaste || e.getSource()==popM_Paste){ //粘贴 paste(); }else if(e.getSource()==itemDelete || e.getSource()==popM_Delete){ //删除 String tem=textArea.getText().toString(); textArea.setText(tem.substring(0,textArea.getSelectionStart())); }else if(e.getSource()==itemFind){ //查找 mySearch(); }else if(e.getSource()==itemFindNext){ //查找下一个 mySearch(); }else if(e.getSource()==itemReplace){ //替换 mySearch(); }else if(e.getSource()==itemTurnTo){ //转到 turnTo(); }else if(e.getSource()==itemSelectAll || e.getSource()==popM_SelectAll){ //选择全部 textArea.selectAll(); }else if(e.getSource()==itemTime){ //时间/日期 textArea.append(hour+":"+min+" "+c.get(Calendar.YEAR)+"/"+(c.get(Calendar.MONTH)+1)+"/"+c.get(Calendar.DAY_OF_MONTH)); }else if(e.getSource()==itemNextLine){ //设置自动换行 //设置文本区的换行策略。如果设置为 true，则当行的长度大于所分配的宽度时，将换行。此属性默认为 false。 if(itemNextLine.isSelected()){ textArea.setLineWrap(true); }else{ textArea.setLineWrap(false); } }else if(e.getSource()==itemFont){ //设置字体大小 // 构造字体选择器，参数字体为预设值 MQFontChooser fontChooser = new MQFontChooser(textArea.getFont()); fontChooser.showFontDialog(this); Font font = fontChooser.getSelectFont(); // 将字体设置到JTextArea中 textArea.setFont(font); }else if(e.getSource()==itemColor){ //设置背景颜色 jcc1 = new JColorChooser(); JOptionPane.showMessageDialog(this, jcc1,"选择背景颜色颜色",-1); color = jcc1.getColor(); textArea.setBackground(color); }else if(e.getSource()==itemFontColor){ //设置字体颜色 jcc1=new JColorChooser(); JOptionPane.showMessageDialog(this, jcc1, "选择字体颜色", -1); color = jcc1.getColor(); //String string=textArea.getSelectedText(); textArea.setForeground(color); }else if(e.getSource()==itemStatement){ //设置状态 if(itemStatement.isSelected()){ //scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); toolState.setVisible(true); }else{ //scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); toolState.setVisible(false); } }else if(e.getSource()==itemSearchForHelp){ JOptionPane.showMessageDialog(this, "赶快迷恋哥，趁哥还不是传说…","行动起来",1); }else if(e.getSource()==itemAboutNotepad){ JOptionPane.showMessageDialog(this, "记事本V1.0【1504班杨宇杰制作】","软件说明 ",1); } } /*===================================================================*/ private void turnTo() { final JDialog gotoDialog = new JDialog(this, "转到下列行"); JLabel gotoLabel = new JLabel("行数(L):"); final JTextField linenum = new JTextField(5); linenum.setText("1"); linenum.selectAll(); JButton okButton = new JButton("确定"); okButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int totalLine = textArea.getLineCount(); int[] lineNumber = new int[totalLine + 1]; String s = textArea.getText(); int pos = 0, t = 0; while (true) { pos = s.indexOf('\12', pos); // System.out.println("引索pos:"+pos); if (pos == -1) break; lineNumber[t++] = pos++; } int gt = 1; try { gt = Integer.parseInt(linenum.getText()); } catch (NumberFormatException efe) { JOptionPane.showMessageDialog(null, "请输入行数!", "提示", JOptionPane.WARNING_MESSAGE); linenum.requestFocus(true); return; } if (gt < 2 || gt >= totalLine) { if (gt < 2) textArea.setCaretPosition(0); else textArea.setCaretPosition(s.length()); } else textArea.setCaretPosition(lineNumber[gt - 2] + 1); gotoDialog.dispose();//关闭窗体 } }); JButton cancelButton = new JButton("取消"); cancelButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { gotoDialog.dispose(); } }); //将组件添加到容器里 Container con = gotoDialog.getContentPane(); con.setLayout(new FlowLayout()); con.add(gotoLabel); con.add(linenum); con.add(okButton); con.add(cancelButton); gotoDialog.setSize(200, 100); gotoDialog.setResizable(false); gotoDialog.setLocation(300, 280); gotoDialog.setVisible(true); } /*===============================8====================================*/ /** * 退出按钮，和窗口的红叉实现一样的功能 */ private void exit() { if(flag==2 && currentPath==null){ //这是弹出小窗口 //1、（刚启动记事本为0，刚新建文档为1）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到无标题?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ NotepadMainFrame.this.saveAs(); }else if(result==JOptionPane.NO_OPTION){ NotepadMainFrame.this.dispose(); NotepadMainFrame.this.setDefaultCloseOperation(EXIT_ON_CLOSE); } }else if(flag==2 && currentPath!=null){ //这是弹出小窗口 //1、（刚启动记事本为0，刚新建文档为1）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到"+currentPath+"?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ NotepadMainFrame.this.save(); }else if(result==JOptionPane.NO_OPTION){ NotepadMainFrame.this.dispose(); NotepadMainFrame.this.setDefaultCloseOperation(EXIT_ON_CLOSE); } }else{ //这是弹出小窗口 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "确定关闭？", "系统提示", JOptionPane.YES_NO_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ NotepadMainFrame.this.dispose(); NotepadMainFrame.this.setDefaultCloseOperation(EXIT_ON_CLOSE); } } } /*===================================================================*/ /*===============================4====================================*/ /** * 新建文件，只有改过的和保存过的需要处理 */ private void newFile() { if(flag==0 || flag==1){ //刚启动记事本为0，刚新建文档为1 return; }else if(flag==2 && this.currentPath==null){ //修改后 //1、（刚启动记事本为0，刚新建文档为1）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到无标题?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ this.saveAs(); //另存为 }else if(result==JOptionPane.NO_OPTION){ this.textArea.setText(""); this.setTitle("无标题"); flag=1; } return; }else if(flag==2 && this.currentPath!=null ){ //2、（保存的文件为3）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到"+this.currentPath+"?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ this.save(); //直接保存，有路径 }else if(result==JOptionPane.NO_OPTION){ this.textArea.setText(""); this.setTitle("无标题"); flag=1; } }else if(flag==3){ //保存的文件 this.textArea.setText(""); flag=1; this.setTitle("无标题"); } } /*===================================================================*/ /*===============================5====================================*/ /** * 另存为 */ private void saveAs() { //打开保存框 JFileChooser choose=new JFileChooser(); //选择文件 int result=choose.showSaveDialog(this); if(result==JFileChooser.APPROVE_OPTION){ //取得选择的文件[文件名是自己输入的] File file=choose.getSelectedFile(); FileWriter fw=null; //保存 try { fw=new FileWriter(file); fw.write(textArea.getText()); currentFileName=file.getName(); currentPath=file.getAbsolutePath(); //如果比较少，需要写 fw.flush(); this.flag=3; this.setTitle(currentPath); } catch (IOException e1) { e1.printStackTrace(); }finally{ try { if(fw!=null) fw.close(); } catch (IOException e1) { e1.printStackTrace(); } } } } /*===================================================================*/ /*===============================6====================================*/ /** * 保存 */ private void save() { if(this.currentPath==null){ this.saveAs(); if(this.currentPath==null){ return; } } FileWriter fw=null; //保存 try { fw=new FileWriter(new File(currentPath)); fw.write(textArea.getText()); //如果比较少，需要写 fw.flush(); flag=3; this.setTitle(this.currentPath); } catch (IOException e1) { e1.printStackTrace(); }finally{ try { if(fw!=null) fw.close(); } catch (IOException e1) { e1.printStackTrace(); } } } /*===================================================================*/ /*================================7===================================*/ /** * 打开文件 */ private void openFile() { if(flag==2 && this.currentPath==null){ //1、（刚启动记事本为0，刚新建文档为1）条件下修改后 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到无标题?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ this.saveAs(); } }else if(flag==2 && this.currentPath!=null){ //2、（打开的文件2，保存的文件3）条件下修改 int result=JOptionPane.showConfirmDialog(NotepadMainFrame.this, "是否将更改保存到"+this.currentPath+"?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); if(result==JOptionPane.OK_OPTION){ this.save(); } } //打开文件选择框 JFileChooser choose=new JFileChooser(); //选择文件 int result=choose.showOpenDialog(this); if(result==JFileChooser.APPROVE_OPTION){ //取得选择的文件 File file=choose.getSelectedFile(); //打开已存在的文件，提前将文件名存起来 currentFileName=file.getName(); //存在文件全路径 currentPath=file.getAbsolutePath(); flag=3; this.setTitle(this.currentPath); BufferedReader br=null; try { //建立文件流[字符流] InputStreamReader isr=new InputStreamReader(new FileInputStream(file),"GBK"); br=new BufferedReader(isr);//动态绑定 //读取内容 StringBuffer sb=new StringBuffer(); String line=null; while((line=br.readLine())!=null){ sb.append(line+SystemParam.LINE_SEPARATOR); } //显示在文本框[多框] textArea.setText(sb.toString()); } catch (FileNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } finally{ try { if(br!=null) br.close(); } catch (Exception e1) { e1.printStackTrace(); } } } } /*================================================================*/ /*=============================9===================================*/ public void Print() { try{ p = getToolkit().getPrintJob(this,"ok",null);//创建一个Printfjob 对象 p g = p.getGraphics();//p 获取一个用于打印的 Graphics 的对象 //g.translate(120,200);//改变组建的位置 this.textArea.printAll(g); p.end();//释放对象 g } catch(Exception a){ } } /*================================================================*/ private static void addPopup(Component component, final JPopupMenu popup) { component.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent e) { if (e.isPopupTrigger()) { showMenu(e); } } public void mouseReleased(MouseEvent e) { if (e.isPopupTrigger()) { showMenu(e); } } private void showMenu(MouseEvent e) { popup.show(e.getComponent(), e.getX(), e.getY()); } }); } public void cut(){ copy(); //标记开始位置 int start = this.textArea.getSelectionStart(); //标记结束位置 int end = this.textArea.getSelectionEnd(); //删除所选段 this.textArea.replaceRange("", start, end); } public void copy(){ //拖动选取文本 String temp = this.textArea.getSelectedText(); //把获取的内容复制到连续字符器，这个类继承了剪贴板接口 StringSelection text = new StringSelection(temp); //把内容放在剪贴板 this.clipboard.setContents(text, null); } public void paste(){ //Transferable接口，把剪贴板的内容转换成数据 Transferable contents = this.clipboard.getContents(this); //DataFalvor类判断是否能把剪贴板的内容转换成所需数据类型 DataFlavor flavor = DataFlavor.stringFlavor; //如果可以转换 if(contents.isDataFlavorSupported(flavor)){ String str; try {//开始转换 str=(String)contents.getTransferData(flavor); //如果要粘贴时，鼠标已经选中了一些字符 if(this.textArea.getSelectedText()!=null){ //定位被选中字符的开始位置 int start = this.textArea.getSelectionStart(); //定位被选中字符的末尾位置 int end = this.textArea.getSelectionEnd(); //把粘贴的内容替换成被选中的内容 this.textArea.replaceRange(str, start, end); }else{ //获取鼠标所在TextArea的位置 int mouse = this.textArea.getCaretPosition(); //在鼠标所在的位置粘贴内容 this.textArea.insert(str, mouse); } } catch(UnsupportedFlavorException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch(IllegalArgumentException e){ e.printStackTrace(); } } } public void mySearch() { final JDialog findDialog = new JDialog(this, "查找与替换", true); Container con = findDialog.getContentPane(); con.setLayout(new FlowLayout(FlowLayout.LEFT)); JLabel searchContentLabel = new JLabel("查找内容(N) :"); JLabel replaceContentLabel = new JLabel("替换为(P)　 :"); final JTextField findText = new JTextField(22); final JTextField replaceText = new JTextField(22); final JCheckBox matchcase = new JCheckBox("区分大小写"); ButtonGroup bGroup = new ButtonGroup(); final JRadioButton up = new JRadioButton("向上(U)"); final JRadioButton down = new JRadioButton("向下(D)"); down.setSelected(true); bGroup.add(up); bGroup.add(down); JButton searchNext = new JButton("查找下一个(F)"); JButton replace = new JButton("替换(R)"); final JButton replaceAll = new JButton("全部替换(A)"); searchNext.setPreferredSize(new Dimension(110, 22)); replace.setPreferredSize(new Dimension(110, 22)); replaceAll.setPreferredSize(new Dimension(110, 22)); // "替换"按钮的事件处理 replace.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (replaceText.getText().length() == 0 && textArea.getSelectedText() != null) textArea.replaceSelection(""); if (replaceText.getText().length() > 0 && textArea.getSelectedText() != null) textArea.replaceSelection(replaceText.getText()); } }); // "替换全部"按钮的事件处理 replaceAll.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { textArea.setCaretPosition(0); // 将光标放到编辑区开头 int a = 0, b = 0, replaceCount = 0; if (findText.getText().length() == 0) { JOptionPane.showMessageDialog(findDialog, "请填写查找内容!", "提示", JOptionPane.WARNING_MESSAGE); findText.requestFocus(true); return; } while (a > -1) { int FindStartPos = textArea.getCaretPosition(); String str1, str2, str3, str4, strA, strB; str1 = textArea.getText(); str2 = str1.toLowerCase(); str3 = findText.getText(); str4 = str3.toLowerCase(); if (matchcase.isSelected()) { strA = str1; strB = str3; } else { strA = str2; strB = str4; } if (up.isSelected()) { if (textArea.getSelectedText() == null) { a = strA.lastIndexOf(strB, FindStartPos - 1); } else { a = strA.lastIndexOf(strB, FindStartPos - findText.getText().length() - 1); } } else if (down.isSelected()) { if (textArea.getSelectedText() == null) { a = strA.indexOf(strB, FindStartPos); } else { a = strA.indexOf(strB, FindStartPos - findText.getText().length() + 1); } } if (a > -1) { if (up.isSelected()) { textArea.setCaretPosition(a); b = findText.getText().length(); textArea.select(a, a + b); } else if (down.isSelected()) { textArea.setCaretPosition(a); b = findText.getText().length(); textArea.select(a, a + b); } } else { if (replaceCount == 0) { JOptionPane.showMessageDialog(findDialog, "找不到您查找的内容!", "记事本", JOptionPane.INFORMATION_MESSAGE); } else { JOptionPane.showMessageDialog(findDialog, "成功替换" + replaceCount + "个匹配内容!", "替换成功", JOptionPane.INFORMATION_MESSAGE); } } if (replaceText.getText().length() == 0 && textArea.getSelectedText() != null) { textArea.replaceSelection(""); replaceCount++; } if (replaceText.getText().length() > 0 && textArea.getSelectedText() != null) { textArea.replaceSelection(replaceText.getText()); replaceCount++; } }// end while } }); /* "替换全部"按钮的事件处理结束 */ // "查找下一个"按钮事件处理 searchNext.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int a = 0, b = 0; int FindStartPos = textArea.getCaretPosition(); String str1, str2, str3, str4, strA, strB; str1 = textArea.getText(); str2 = str1.toLowerCase(); str3 = findText.getText(); str4 = str3.toLowerCase(); // "区分大小写"的CheckBox被选中 if (matchcase.isSelected()) { strA = str1; strB = str3; } else { strA = str2; strB = str4; } if (up.isSelected()) { if (textArea.getSelectedText() == null) { a = strA.lastIndexOf(strB, FindStartPos - 1); } else { a = strA.lastIndexOf(strB, FindStartPos - findText.getText().length() - 1); } } else if (down.isSelected()) { if (textArea.getSelectedText() == null) { a = strA.indexOf(strB, FindStartPos); } else { a = strA.indexOf(strB, FindStartPos - findText.getText().length() + 1); } } if (a > -1) { if (up.isSelected()) { textArea.setCaretPosition(a); b = findText.getText().length(); textArea.select(a, a + b); } else if (down.isSelected()) { textArea.setCaretPosition(a); b = findText.getText().length(); textArea.select(a, a + b); } } else { JOptionPane.showMessageDialog(null, "找不到您查找的内容!", "记事本", JOptionPane.INFORMATION_MESSAGE); } } });/* "查找下一个"按钮事件处理结束 */ // "取消"按钮及事件处理 JButton cancel = new JButton("取消"); cancel.setPreferredSize(new Dimension(110, 22)); cancel.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { findDialog.dispose(); } }); // 创建"查找与替换"对话框的界面 JPanel bottomPanel = new JPanel(); JPanel centerPanel = new JPanel(); JPanel topPanel = new JPanel(); JPanel direction = new JPanel(); direction.setBorder(BorderFactory.createTitledBorder("方向 ")); direction.add(up); direction.add(down); direction.setPreferredSize(new Dimension(170, 60)); JPanel replacePanel = new JPanel(); replacePanel.setLayout(new GridLayout(2, 1)); replacePanel.add(replace); replacePanel.add(replaceAll); topPanel.add(searchContentLabel); topPanel.add(findText); topPanel.add(searchNext); centerPanel.add(replaceContentLabel); centerPanel.add(replaceText); centerPanel.add(replacePanel); bottomPanel.add(matchcase); bottomPanel.add(direction); bottomPanel.add(cancel); con.add(topPanel); con.add(centerPanel); con.add(bottomPanel); // 设置"查找与替换"对话框的大小、可更改大小(否)、位置和可见性 findDialog.setSize(410, 210); findDialog.setResizable(false); findDialog.setLocation(230, 280); findDialog.setVisible(true); } }