1 package mingye;
2 import java.awt.*;
3 import java.awt.event.*;
4 import java.text.*;
5 import java.util.*;
6 import java.io.*;
7 import javax.swing.undo.*;
8 import javax.swing.border.*;
9 import javax.swing.*;
10 import javax.swing.text.*;
11 import javax.swing.event.*;
12 import java.awt.datatransfer.*;
13
14
15 public class NoteTest extends JFrame implements ActionListener,DocumentListener
16 {
17 JMenu fileMenu,editMenu,formatMenu,viewMenu,helpMenu;
18 JPopupMenu popupMenu;
19 JMenuItem popupMenu_Undo,popupMenu_Cut,popupMenu_Copy,popupMenu_Paste,popupMenu_Delete,popupMenu_SelectAll;
20 JMenuItem fileMenu_New,fileMenu_Open,fileMenu_Save,fileMenu_SaveAs,fileMenu_PageSetUp,fileMenu_Print,fileMenu_Exit;
21 JMenuItem editMenu_Undo,editMenu_Cut,editMenu_Copy,editMenu_Paste,editMenu_Delete,editMenu_Find,editMenu_FindNext,editMenu_Replace,editMenu_GoTo,editMenu_SelectAll,editMenu_TimeDate;
22 JCheckBoxMenuItem formatMenu_LineWrap;
23 JMenuItem formatMenu_Font;
24 JCheckBoxMenuItem viewMenu_Status;
25 JMenuItem helpMenu_HelpTopics,helpMenu_AboutNotepad;
26 JTextArea editArea;
27 JLabel statusLabel;
28 Toolkit toolkit=Toolkit.getDefaultToolkit();
29 Clipboard clipBoard=toolkit.getSystemClipboard();
30 protected UndoManager undo=new UndoManager();
31 protected UndoableEditListener undoHandler=new UndoHandler();
32 String oldValue;
33 boolean isNewFile=true;
34 File currentFile;
35 public NoteTest()
36 {
37 super("Java记事本");
38
39 Font font = new Font("Dialog", Font.PLAIN, 12);
40 java.util.Enumeration keys = UIManager.getDefaults().keys();
41 while (keys.hasMoreElements()) {
42 Object key = keys.nextElement();
43 Object value = UIManager.get(key);
44 if (value instanceof javax.swing.plaf.FontUIResource) {
45 UIManager.put(key, font);
46 }
47 }
48
49 JMenuBar menuBar=new JMenuBar();
50
51 fileMenu=new JMenu("文件(F)");
52 fileMenu.setMnemonic('F');
53
54 fileMenu_New=new JMenuItem("新建(N)");
55 fileMenu_New.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));
56 fileMenu_New.addActionListener(this);
57
58 fileMenu_Open=new JMenuItem("打开(O)...");
59 fileMenu_Open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));
60 fileMenu_Open.addActionListener(this);
61
62 fileMenu_Save=new JMenuItem("保存(S)");
63 fileMenu_Save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));
64 fileMenu_Save.addActionListener(this);
65
66 fileMenu_SaveAs=new JMenuItem("另存为(A)...");
67 fileMenu_SaveAs.addActionListener(this);
68
69 fileMenu_PageSetUp=new JMenuItem("页面设置(U)...");
70 fileMenu_PageSetUp.addActionListener(this);
71
72 fileMenu_Print=new JMenuItem("打印(P)...");
73 fileMenu_Print.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P, InputEvent.CTRL_MASK));
74 fileMenu_Print.addActionListener(this);
75
76 fileMenu_Exit=new JMenuItem("退出(X)");
77 fileMenu_Exit.addActionListener(this);
78
79
80 editMenu=new JMenu("编辑(E)");
81 editMenu.setMnemonic('E');
82 editMenu.addMenuListener(new MenuListener()
83 { public void menuCanceled(MenuEvent e)
84 { checkMenuItemEnabled();
85 }
86 public void menuDeselected(MenuEvent e)
87 { checkMenuItemEnabled();
88 }
89 public void menuSelected(MenuEvent e)
90 { checkMenuItemEnabled();
91 }
92 });
93 try {
94 UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
95 } catch (ClassNotFoundException e1) {
96 // TODO Auto-generated catch block
97 e1.printStackTrace();
98 } catch (InstantiationException e1) {
99 // TODO Auto-generated catch block
100 e1.printStackTrace();
101 } catch (IllegalAccessException e1) {
102 // TODO Auto-generated catch block
103 e1.printStackTrace();
104 } catch (UnsupportedLookAndFeelException e1) {
105 // TODO Auto-generated catch block
106 e1.printStackTrace();
107 }
108 editMenu_Undo=new JMenuItem("撤销(U)");
109 editMenu_Undo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z,InputEvent.CTRL_MASK));
110 editMenu_Undo.addActionListener(this);
111 editMenu_Undo.setEnabled(false);
112
113 editMenu_Cut=new JMenuItem("剪切(T)");
114 editMenu_Cut.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.CTRL_MASK));
115 editMenu_Cut.addActionListener(this);
116
117 editMenu_Copy=new JMenuItem("复制(C)");
118 editMenu_Copy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK));
119 editMenu_Copy.addActionListener(this);
120
121 editMenu_Paste=new JMenuItem("粘贴(P)");
122 editMenu_Paste.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,InputEvent.CTRL_MASK));
123 editMenu_Paste.addActionListener(this);
124
125 editMenu_Delete=new JMenuItem("删除(D)");
126 editMenu_Delete.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE,0));
127 editMenu_Delete.addActionListener(this);
128
129 editMenu_Find=new JMenuItem("查找(F)...");
130 editMenu_Find.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F,InputEvent.CTRL_MASK));
131 editMenu_Find.addActionListener(this);
132
133 editMenu_FindNext=new JMenuItem("查找下一个(N)");
134 editMenu_FindNext.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3,0));
135 editMenu_FindNext.addActionListener(this);
136
137 editMenu_Replace = new JMenuItem("替换(R)...",'R');
138 editMenu_Replace.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H, InputEvent.CTRL_MASK));
139 editMenu_Replace.addActionListener(this);
140
141 editMenu_GoTo = new JMenuItem("转到(G)...",'G');
142 editMenu_GoTo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_G, InputEvent.CTRL_MASK));
143 editMenu_GoTo.addActionListener(this);
144
145 editMenu_SelectAll = new JMenuItem("全选",'A');
146 editMenu_SelectAll.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, InputEvent.CTRL_MASK));
147 editMenu_SelectAll.addActionListener(this);
148
149 editMenu_TimeDate = new JMenuItem("时间/日期(D)",'D');
150 editMenu_TimeDate.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5,0));
151 editMenu_TimeDate.addActionListener(this);
152
153
154 formatMenu=new JMenu("格式(O)");
155 formatMenu.setMnemonic('O');
156
157 formatMenu_LineWrap=new JCheckBoxMenuItem("自动换行(W)");
158 formatMenu_LineWrap.setMnemonic('W');
159 formatMenu_LineWrap.setState(true);
160 formatMenu_LineWrap.addActionListener(this);
161 formatMenu_Font=new JMenuItem("字体(F)...");
162 formatMenu_Font.addActionListener(this);
163 viewMenu=new JMenu("查看(V)");
164 viewMenu.setMnemonic('V');
165 viewMenu_Status=new JCheckBoxMenuItem("状态栏(S)");
166 viewMenu_Status.setMnemonic('S');
167 viewMenu_Status.setState(true);
168 viewMenu_Status.addActionListener(this);
169 helpMenu = new JMenu("帮助(H)");
170 helpMenu.setMnemonic('H');
171 helpMenu_AboutNotepad = new JMenuItem("关于记事本(A)");
172 helpMenu_AboutNotepad.addActionListener(this);
173
174 menuBar.add(fileMenu);
175 fileMenu.add(fileMenu_New);
176 fileMenu.add(fileMenu_Open);
177 fileMenu.add(fileMenu_Save);
178 fileMenu.add(fileMenu_SaveAs);
179 fileMenu.addSeparator();
180 fileMenu.add(fileMenu_PageSetUp);
181 fileMenu.add(fileMenu_Print);
182 fileMenu.addSeparator();
183 fileMenu.add(fileMenu_Exit);
184
185 menuBar.add(editMenu);
186 editMenu.add(editMenu_Undo);
187 editMenu.addSeparator();
188 editMenu.add(editMenu_Cut);
189 editMenu.add(editMenu_Copy);
190 editMenu.add(editMenu_Paste);
191 editMenu.add(editMenu_Delete);
192 editMenu.addSeparator();
193 editMenu.add(editMenu_Find);
194 editMenu.add(editMenu_FindNext);
195 editMenu.add(editMenu_Replace);
196 editMenu.add(editMenu_GoTo);
197 editMenu.addSeparator();
198 editMenu.add(editMenu_SelectAll);
199 editMenu.add(editMenu_TimeDate);
200
201
202 menuBar.add(formatMenu);
203 formatMenu.add(formatMenu_LineWrap);
204 formatMenu.add(formatMenu_Font);
205
206 menuBar.add(viewMenu);
207 viewMenu.add(viewMenu_Status);
208
209 menuBar.add(helpMenu);
210
211
212 helpMenu.add(helpMenu_AboutNotepad);
213
214 this.setJMenuBar(menuBar);
215
216 editArea=new JTextArea(20,50);
217 JScrollPane scroller=new JScrollPane(editArea);
218 scroller.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
219 this.add(scroller,BorderLayout.CENTER);
220 editArea.setWrapStyleWord(true);
221 editArea.setLineWrap(true);
222 oldValue=editArea.getText();
223 editArea.getDocument().addUndoableEditListener(undoHandler);
224 editArea.getDocument().addDocumentListener(this);
225 popupMenu=new JPopupMenu();
226 popupMenu_Undo=new JMenuItem("撤销(U)");
227 popupMenu_Cut=new JMenuItem("剪切(T)");
228 popupMenu_Copy=new JMenuItem("复制(C)");
229 popupMenu_Paste=new JMenuItem("粘帖(P)");
230 popupMenu_Delete=new JMenuItem("删除(D)");
231 popupMenu_SelectAll=new JMenuItem("全选(A)");
232 popupMenu_Undo.setEnabled(false);
233 popupMenu.add(popupMenu_Undo);
234 popupMenu.addSeparator();
235 popupMenu.add(popupMenu_Cut);
236 popupMenu.add(popupMenu_Copy);
237 popupMenu.add(popupMenu_Paste);
238 popupMenu.add(popupMenu_Delete);
239 popupMenu.addSeparator();
240 popupMenu.add(popupMenu_SelectAll);
241 popupMenu_Undo.addActionListener(this);
242 popupMenu_Cut.addActionListener(this);
243 popupMenu_Copy.addActionListener(this);
244 popupMenu_Paste.addActionListener(this);
245 popupMenu_Delete.addActionListener(this);
246 popupMenu_SelectAll.addActionListener(this);
247 editArea.addMouseListener(new MouseAdapter()
248 { public void mousePressed(MouseEvent e)
249 { if(e.isPopupTrigger())
250 { popupMenu.show(e.getComponent(),e.getX(),e.getY());
251 }
252 checkMenuItemEnabled();
253 editArea.requestFocus();
254 }
255 public void mouseReleased(MouseEvent e)
256 { if(e.isPopupTrigger())
257 { popupMenu.show(e.getComponent(),e.getX(),e.getY());
258 }
259 checkMenuItemEnabled();
260 editArea.requestFocus();
261 }
262 });
263
264
265 setBounds(360,100,650,500);
266 setVisible(true);
267
268 addWindowListener(new WindowAdapter()
269 { public void windowClosing(WindowEvent e)
270 { exitWindowChoose();
271 }
272 });
273
274 checkMenuItemEnabled();
275 editArea.requestFocus();
276 }
277
278 public void checkMenuItemEnabled()
279 { String selectText=editArea.getSelectedText();
280 if(selectText==null)
281 { editMenu_Cut.setEnabled(false);
282 popupMenu_Cut.setEnabled(false);
283 editMenu_Copy.setEnabled(false);
284 popupMenu_Copy.setEnabled(false);
285 editMenu_Delete.setEnabled(false);
286 popupMenu_Delete.setEnabled(false);
287 }
288 else
289 { editMenu_Cut.setEnabled(true);
290 popupMenu_Cut.setEnabled(true);
291 editMenu_Copy.setEnabled(true);
292 popupMenu_Copy.setEnabled(true);
293 editMenu_Delete.setEnabled(true);
294 popupMenu_Delete.setEnabled(true);
295 }
296
297 Transferable contents=clipBoard.getContents(this);
298 if(contents==null)
299 { editMenu_Paste.setEnabled(false);
300 popupMenu_Paste.setEnabled(false);
301 }
302 else
303 { editMenu_Paste.setEnabled(true);
304 popupMenu_Paste.setEnabled(true);
305 }
306 }
307
308 public void exitWindowChoose()
309 { editArea.requestFocus();
310 String currentValue=editArea.getText();
311 if(currentValue.equals(oldValue)==true)
312 { System.exit(0);
313 }
314 else
315 { int exitChoose=JOptionPane.showConfirmDialog(this,"您的文件尚未保存，是否保存？","退出提示",JOptionPane.YES_NO_CANCEL_OPTION);
316 if(exitChoose==JOptionPane.YES_OPTION)
317 {
318 if(isNewFile)
319 {
320 String str=null;
321 JFileChooser fileChooser=new JFileChooser();
322 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
323 fileChooser.setApproveButtonText("确定");
324 fileChooser.setDialogTitle("另存为");
325
326 int result=fileChooser.showSaveDialog(this);
327
328 if(result==JFileChooser.CANCEL_OPTION)
329 { statusLabel.setText(" 您没有保存文件");
330 return;
331 }
332
333 File saveFileName=fileChooser.getSelectedFile();
334
335 if(saveFileName==null||saveFileName.getName().equals(""))
336 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
337 }
338 else
339 { try
340 { FileWriter fw=new FileWriter(saveFileName);
341 BufferedWriter bfw=new BufferedWriter(fw);
342 bfw.write(editArea.getText(),0,editArea.getText().length());
343 bfw.flush();
344 fw.close();
345
346 isNewFile=false;
347 currentFile=saveFileName;
348 oldValue=editArea.getText();
349
350 this.setTitle(saveFileName.getName()+" - 记事本");
351 statusLabel.setText(" 当前打开文件:"+saveFileName.getAbsoluteFile());
352 //isSave=true;
353 }
354 catch(IOException ioException){
355 }
356 }
357 }
358 else
359 {
360 try
361 { FileWriter fw=new FileWriter(currentFile);
362 BufferedWriter bfw=new BufferedWriter(fw);
363 bfw.write(editArea.getText(),0,editArea.getText().length());
364 bfw.flush();
365 fw.close();
366
367 }
368 catch(IOException ioException){
369 }
370 }
371 System.exit(0);
372
373 }
374 else if(exitChoose==JOptionPane.NO_OPTION)
375 { System.exit(0);
376 }
377 else
378 { return;
379 }
380 }
381 }
382
383 public void find()
384 { final JDialog findDialog=new JDialog(this,"查找",false);
385 Container con=findDialog.getContentPane();
386 con.setLayout(new FlowLayout(FlowLayout.LEFT));
387 JLabel findContentLabel=new JLabel("查找内容(N)：");
388 final JTextField findText=new JTextField(15);
389 JButton findNextButton=new JButton("查找下一个(F)：");
390 final JCheckBox matchCheckBox=new JCheckBox("区分大小写(C)");
391 ButtonGroup bGroup=new ButtonGroup();
392 final JRadioButton upButton=new JRadioButton("向上(U)");
393 final JRadioButton downButton=new JRadioButton("向下(U)");
394 downButton.setSelected(true);
395 bGroup.add(upButton);
396 bGroup.add(downButton);
397
398 JButton cancel=new JButton("取消");
399
400 cancel.addActionListener(new ActionListener()
401 { public void actionPerformed(ActionEvent e)
402 { findDialog.dispose();
403 }
404 });
405
406 findNextButton.addActionListener(new ActionListener()
407 { public void actionPerformed(ActionEvent e)
408 {
409 int k=0,m=0;
410 final String str1,str2,str3,str4,strA,strB;
411 str1=editArea.getText();
412 str2=findText.getText();
413 str3=str1.toUpperCase();
414 str4=str2.toUpperCase();
415 if(matchCheckBox.isSelected())
416 { strA=str1;
417 strB=str2;
418 }
419 else
420 { strA=str3;
421 strB=str4;
422 }
423 if(upButton.isSelected())
424 {
425 if(editArea.getSelectedText()==null)
426 k=strA.lastIndexOf(strB,editArea.getCaretPosition()-1);
427 else
428 k=strA.lastIndexOf(strB, editArea.getCaretPosition()-findText.getText().length()-1);
429 if(k>-1)
430 {
431 editArea.setCaretPosition(k);
432 editArea.select(k,k+strB.length());
433 }
434 else
435 { JOptionPane.showMessageDialog(null,"查找失败！","查找",JOptionPane.INFORMATION_MESSAGE);
436 }
437 }
438 else if(downButton.isSelected())
439 { if(editArea.getSelectedText()==null)
440 k=strA.indexOf(strB,editArea.getCaretPosition()+1);
441 else
442 k=strA.indexOf(strB, editArea.getCaretPosition()-findText.getText().length()+1);
443 if(k>-1)
444 { //String strData=strA.subString(k,strB.getText().length()+1);
445 editArea.setCaretPosition(k);
446 editArea.select(k,k+strB.length());
447 }
448 else
449 { JOptionPane.showMessageDialog(null,"查找失败！","查找",JOptionPane.INFORMATION_MESSAGE);
450 }
451 }
452 }
453 });
454 JPanel panel1=new JPanel();
455 JPanel panel2=new JPanel();
456 JPanel panel3=new JPanel();
457 JPanel directionPanel=new JPanel();
458 directionPanel.setBorder(BorderFactory.createTitledBorder("方向"));
459 directionPanel.add(upButton);
460 directionPanel.add(downButton);
461 panel1.setLayout(new GridLayout(2,1));
462 panel1.add(findNextButton);
463 panel1.add(cancel);
464 panel2.add(findContentLabel);
465 panel2.add(findText);
466 panel2.add(panel1);
467 panel3.add(matchCheckBox);
468 panel3.add(directionPanel);
469 con.add(panel2);
470 con.add(panel3);
471 findDialog.setSize(410,180);
472 findDialog.setResizable(false);//不可调整大小
473 findDialog.setLocation(230,280);
474 findDialog.setVisible(true);
475 }
476
477 public void replace()
478 { final JDialog replaceDialog=new JDialog(this,"替换",false);
479 Container con=replaceDialog.getContentPane();
480 con.setLayout(new FlowLayout(FlowLayout.CENTER));
481 JLabel findContentLabel=new JLabel("查找内容(N)：");
482 final JTextField findText=new JTextField(15);
483 JButton findNextButton=new JButton("查找下一个(F):");
484 JLabel replaceLabel=new JLabel("替换为(P)：");
485 final JTextField replaceText=new JTextField(15);
486 JButton replaceButton=new JButton("替换(R)");
487 JButton replaceAllButton=new JButton("全部替换(A)");
488 JButton cancel=new JButton("取消");
489 cancel.addActionListener(new ActionListener()
490 { public void actionPerformed(ActionEvent e)
491 { replaceDialog.dispose();
492 }
493 });
494 final JCheckBox matchCheckBox=new JCheckBox("区分大小写(C)");
495 ButtonGroup bGroup=new ButtonGroup();
496 final JRadioButton upButton=new JRadioButton("向上(U)");
497 final JRadioButton downButton=new JRadioButton("向下(U)");
498 downButton.setSelected(true);
499 bGroup.add(upButton);
500
501 findNextButton.addActionListener(new ActionListener()
502 { public void actionPerformed(ActionEvent e)
503 {
504 int k=0,m=0;
505 final String str1,str2,str3,str4,strA,strB;
506 str1=editArea.getText();
507 str2=findText.getText();
508 str3=str1.toUpperCase();
509 str4=str2.toUpperCase();
510 if(matchCheckBox.isSelected())//区分大小写
511 { strA=str1;
512 strB=str2;
513 }
514 else
515 { strA=str3;
516 strB=str4;
517 }
518 if(upButton.isSelected())
519 {
520 if(editArea.getSelectedText()==null)
521 k=strA.lastIndexOf(strB,editArea.getCaretPosition()-1);
522 else
523 k=strA.lastIndexOf(strB, editArea.getCaretPosition()-findText.getText().length()-1);
524 if(k>-1)
525 {
526 editArea.setCaretPosition(k);
527 editArea.select(k,k+strB.length());
528 }
529 else
530 { JOptionPane.showMessageDialog(null,"找不到您查找的内容！","查找",JOptionPane.INFORMATION_MESSAGE);
531 }
532 }
533 else if(downButton.isSelected())
534 { if(editArea.getSelectedText()==null)
535 k=strA.indexOf(strB,editArea.getCaretPosition()+1);
536 else
537 k=strA.indexOf(strB, editArea.getCaretPosition()-findText.getText().length()+1);
538 if(k>-1)
539 {
540 editArea.setCaretPosition(k);
541 editArea.select(k,k+strB.length());
542 }
543 else
544 { JOptionPane.showMessageDialog(null,"找不到您查找的内容！","查找",JOptionPane.INFORMATION_MESSAGE);
545 }
546 }
547 }
548 });
549
550
551 replaceButton.addActionListener(new ActionListener()
552 { public void actionPerformed(ActionEvent e)
553 { if(replaceText.getText().length()==0 && editArea.getSelectedText()!=null)
554 editArea.replaceSelection("");
555 if(replaceText.getText().length()>0 && editArea.getSelectedText()!=null)
556 editArea.replaceSelection(replaceText.getText());
557 }
558 });
559
560 replaceAllButton.addActionListener(new ActionListener()
561 { public void actionPerformed(ActionEvent e)
562 { editArea.setCaretPosition(0);
563 int k=0,m=0,replaceCount=0;
564 if(findText.getText().length()==0)
565 { JOptionPane.showMessageDialog(replaceDialog,"请填写您要查找的内容!","提示",JOptionPane.WARNING_MESSAGE);
566 findText.requestFocus(true);
567 return;
568 }
569 while(k>-1)
570 {
571 final String str1,str2,str3,str4,strA,strB;
572 str1=editArea.getText();
573 str2=findText.getText();
574 str3=str1.toUpperCase();
575 str4=str2.toUpperCase();
576 if(matchCheckBox.isSelected())//区分大小写
577 { strA=str1;
578 strB=str2;
579 }
580 else
581 { strA=str3;
582 strB=str4;
583 }
584 if(upButton.isSelected())
585 {
586 if(editArea.getSelectedText()==null)
587 k=strA.lastIndexOf(strB,editArea.getCaretPosition()-1);
588 else
589 k=strA.lastIndexOf(strB, editArea.getCaretPosition()-findText.getText().length()-1);
590 if(k>-1)
591 {
592 editArea.setCaretPosition(k);
593 editArea.select(k,k+strB.length());
594 }
595 else
596 { if(replaceCount==0)
597 { JOptionPane.showMessageDialog(replaceDialog, "查找失败!", "记事本",JOptionPane.INFORMATION_MESSAGE);
598 }
599 else
600 { JOptionPane.showMessageDialog(replaceDialog,"成功替换"+replaceCount+"个相关内容!","替换成功",JOptionPane.INFORMATION_MESSAGE);
601 }
602 }
603 }
604 else if(downButton.isSelected())
605 { if(editArea.getSelectedText()==null)
606 k=strA.indexOf(strB,editArea.getCaretPosition()+1);
607 else
608 k=strA.indexOf(strB, editArea.getCaretPosition()-findText.getText().length()+1);
609 if(k>-1)
610 {
611 editArea.setCaretPosition(k);
612 editArea.select(k,k+strB.length());
613 }
614 else
615 { if(replaceCount==0)
616 { JOptionPane.showMessageDialog(replaceDialog, "查找失败!", "记事本",JOptionPane.INFORMATION_MESSAGE);
617 }
618 else
619 { JOptionPane.showMessageDialog(replaceDialog,"成功替换"+replaceCount+"个匹配内容!","替换成功",JOptionPane.INFORMATION_MESSAGE);
620 }
621 }
622 }
623 if(replaceText.getText().length()==0 && editArea.getSelectedText()!= null)
624 { editArea.replaceSelection("");
625 replaceCount++;
626 }
627
628 if(replaceText.getText().length()>0 && editArea.getSelectedText()!= null)
629 { editArea.replaceSelection(replaceText.getText());
630 replaceCount++;
631 }
632 }
633 }
634 });
635 JPanel directionPanel=new JPanel();
636 directionPanel.setBorder(BorderFactory.createTitledBorder("方向"));
637 directionPanel.add(upButton);
638 directionPanel.add(downButton);
639 JPanel panel1=new JPanel();
640 JPanel panel2=new JPanel();
641 JPanel panel3=new JPanel();
642 JPanel panel4=new JPanel();
643 panel4.setLayout(new GridLayout(2,1));
644 panel1.add(findContentLabel);
645 panel1.add(findText);
646 panel1.add(findNextButton);
647 panel4.add(replaceButton);
648 panel4.add(replaceAllButton);
649 panel2.add(replaceLabel);
650 panel2.add(replaceText);
651 panel2.add(panel4);
652 panel3.add(matchCheckBox);
653 panel3.add(directionPanel);
654 panel3.add(cancel);
655 con.add(panel1);
656 con.add(panel2);
657 con.add(panel3);
658 replaceDialog.setSize(420,220);
659 replaceDialog.setResizable(false);//不可调整大小
660 replaceDialog.setLocation(230,280);
661 replaceDialog.setVisible(true);
662 }
663 public void font()
664 { final JDialog fontDialog=new JDialog(this,"字体设置",false);
665 Container con=fontDialog.getContentPane();
666 con.setLayout(new FlowLayout(FlowLayout.LEFT));
667 JLabel fontLabel=new JLabel("字体(F)：");
668 fontLabel.setPreferredSize(new Dimension(100,20));
669 JLabel styleLabel=new JLabel("字形(Y)：");
670 styleLabel.setPreferredSize(new Dimension(100,20));
671 JLabel sizeLabel=new JLabel("大小(S)：");
672 sizeLabel.setPreferredSize(new Dimension(100,20));
673 final JLabel sample=new JLabel("明少的记事本");
674 final JTextField fontText=new JTextField(9);
675 fontText.setPreferredSize(new Dimension(200,20));
676 final JTextField styleText=new JTextField(8);
677 styleText.setPreferredSize(new Dimension(200,20));
678 final int style[]={Font.PLAIN,Font.BOLD,Font.ITALIC,Font.BOLD+Font.ITALIC};
679 final JTextField sizeText=new JTextField(5);
680 sizeText.setPreferredSize(new Dimension(200,20));
681 JButton okButton=new JButton("确定");
682 JButton cancel=new JButton("取消");
683 cancel.addActionListener(new ActionListener()
684 { public void actionPerformed(ActionEvent e)
685 { fontDialog.dispose();
686 }
687 });
688 Font currentFont=editArea.getFont();
689 fontText.setText(currentFont.getFontName());
690 fontText.selectAll();
691 if(currentFont.getStyle()==Font.PLAIN)
692 styleText.setText("常规");
693 else if(currentFont.getStyle()==Font.BOLD)
694 styleText.setText("粗体");
695 else if(currentFont.getStyle()==Font.ITALIC)
696 styleText.setText("斜体");
697 else if(currentFont.getStyle()==(Font.BOLD+Font.ITALIC))
698 styleText.setText("粗斜体");
699 styleText.selectAll();
700 String str=String.valueOf(currentFont.getSize());
701 sizeText.setText(str);
702 sizeText.selectAll();
703 final JList fontList,styleList,sizeList;
704 GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment();
705 final String fontName[]=ge.getAvailableFontFamilyNames();
706 fontList=new JList(fontName);
707 fontList.setFixedCellWidth(86);
708 fontList.setFixedCellHeight(20);
709 fontList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
710 final String fontStyle[]={"常规","粗体","斜体","粗斜体"};
711 styleList=new JList(fontStyle);
712 styleList.setFixedCellWidth(86);
713 styleList.setFixedCellHeight(20);
714 styleList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
715 if(currentFont.getStyle()==Font.PLAIN)
716 styleList.setSelectedIndex(0);
717 else if(currentFont.getStyle()==Font.BOLD)
718 styleList.setSelectedIndex(1);
719 else if(currentFont.getStyle()==Font.ITALIC)
720 styleList.setSelectedIndex(2);
721 else if(currentFont.getStyle()==(Font.BOLD+Font.ITALIC))
722 styleList.setSelectedIndex(3);
723 final String fontSize[]={"8","9","10","11","12","14","16","18","20","22","24","26","28","36","48","72"};
724 sizeList=new JList(fontSize);
725 sizeList.setFixedCellWidth(43);
726 sizeList.setFixedCellHeight(20);
727 sizeList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
728 fontList.addListSelectionListener(new ListSelectionListener()
729 { public void valueChanged(ListSelectionEvent event)
730 { fontText.setText(fontName[fontList.getSelectedIndex()]);
731 fontText.selectAll();
732 Font sampleFont1=new Font(fontText.getText(),style[styleList.getSelectedIndex()],Integer.parseInt(sizeText.getText()));
733 sample.setFont(sampleFont1);
734 }
735 });
736 styleList.addListSelectionListener(new ListSelectionListener()
737 { public void valueChanged(ListSelectionEvent event)
738 { int s=style[styleList.getSelectedIndex()];
739 styleText.setText(fontStyle[s]);
740 styleText.selectAll();
741 Font sampleFont2=new Font(fontText.getText(),style[styleList.getSelectedIndex()],Integer.parseInt(sizeText.getText()));
742 sample.setFont(sampleFont2);
743 }
744 });
745 sizeList.addListSelectionListener(new ListSelectionListener()
746 { public void valueChanged(ListSelectionEvent event)
747 { sizeText.setText(fontSize[sizeList.getSelectedIndex()]);
748 //sizeText.requestFocus();
749 sizeText.selectAll();
750 Font sampleFont3=new Font(fontText.getText(),style[styleList.getSelectedIndex()],Integer.parseInt(sizeText.getText()));
751 sample.setFont(sampleFont3);
752 }
753 });
754 okButton.addActionListener(new ActionListener()
755 { public void actionPerformed(ActionEvent e)
756 { Font okFont=new Font(fontText.getText(),style[styleList.getSelectedIndex()],Integer.parseInt(sizeText.getText()));
757 editArea.setFont(okFont);
758 fontDialog.dispose();
759 }
760 });
761 JPanel samplePanel=new JPanel();
762 samplePanel.setBorder(BorderFactory.createTitledBorder("示例"));
763 samplePanel.add(sample);
764 JPanel panel1=new JPanel();
765 JPanel panel2=new JPanel();
766 JPanel panel3=new JPanel();
767 panel2.add(fontText);
768 panel2.add(styleText);
769 panel2.add(sizeText);
770 panel2.add(okButton);
771 panel3.add(new JScrollPane(fontList));//JList不支持直接滚动，所以要让JList作为JScrollPane的视口视图
772 panel3.add(new JScrollPane(styleList));
773 panel3.add(new JScrollPane(sizeList));
774 panel3.add(cancel);
775 con.add(panel1);
776 con.add(panel2);
777 con.add(panel3);
778 con.add(samplePanel);
779 fontDialog.setSize(350,340);
780 fontDialog.setLocation(200,200);
781 fontDialog.setResizable(false);
782 fontDialog.setVisible(true);
783 }
784
785
786 public void actionPerformed(ActionEvent e)
787 {
788 if(e.getSource()==fileMenu_New)
789 { editArea.requestFocus();
790 String currentValue=editArea.getText();
791 boolean isTextChange=(currentValue.equals(oldValue))?false:true;
792 if(isTextChange)
793 { int saveChoose=JOptionPane.showConfirmDialog(this,"您的文件尚未保存，是否保存？","提示",JOptionPane.YES_NO_CANCEL_OPTION);
794 if(saveChoose==JOptionPane.YES_OPTION)
795 { String str=null;
796 JFileChooser fileChooser=new JFileChooser();
797 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
798 fileChooser.setDialogTitle("另存为");
799 int result=fileChooser.showSaveDialog(this);
800 if(result==JFileChooser.CANCEL_OPTION)
801 { statusLabel.setText("您没有选择任何文件");
802 return;
803 }
804 File saveFileName=fileChooser.getSelectedFile();
805 if(saveFileName==null || saveFileName.getName().equals(""))
806 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
807 }
808 else
809 { try
810 { FileWriter fw=new FileWriter(saveFileName);
811 BufferedWriter bfw=new BufferedWriter(fw);
812 bfw.write(editArea.getText(),0,editArea.getText().length());
813 bfw.flush();
814 bfw.close();
815 isNewFile=false;
816 currentFile=saveFileName;
817 oldValue=editArea.getText();
818 this.setTitle(saveFileName.getName()+" - 记事本");
819 statusLabel.setText("当前打开文件："+saveFileName.getAbsoluteFile());
820 }
821 catch (IOException ioException)
822 {
823 }
824 }
825 }
826 else if(saveChoose==JOptionPane.NO_OPTION)
827 { editArea.replaceRange("",0,editArea.getText().length());
828 statusLabel.setText(" 新建文件");
829 this.setTitle("无标题 - 记事本");
830 isNewFile=true;
831 undo.discardAllEdits();
832 editMenu_Undo.setEnabled(false);
833 oldValue=editArea.getText();
834 }
835 else if(saveChoose==JOptionPane.CANCEL_OPTION)
836 { return;
837 }
838 }
839 else
840 { editArea.replaceRange("",0,editArea.getText().length());
841 statusLabel.setText(" 新建文件");
842 this.setTitle("无标题 - 记事本");
843 isNewFile=true;
844 undo.discardAllEdits();
845 editMenu_Undo.setEnabled(false);
846 oldValue=editArea.getText();
847 }
848 }
849
850 else if(e.getSource()==fileMenu_Open)
851 { editArea.requestFocus();
852 String currentValue=editArea.getText();
853 boolean isTextChange=(currentValue.equals(oldValue))?false:true;
854 if(isTextChange)
855 { int saveChoose=JOptionPane.showConfirmDialog(this,"您的文件尚未保存，是否保存？","提示",JOptionPane.YES_NO_CANCEL_OPTION);
856 if(saveChoose==JOptionPane.YES_OPTION)
857 { String str=null;
858 JFileChooser fileChooser=new JFileChooser();
859 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
860 fileChooser.setDialogTitle("另存为");
861 int result=fileChooser.showSaveDialog(this);
862 if(result==JFileChooser.CANCEL_OPTION)
863 { statusLabel.setText("您没有选择任何文件");
864 return;
865 }
866 File saveFileName=fileChooser.getSelectedFile();
867 if(saveFileName==null || saveFileName.getName().equals(""))
868 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
869 }
870 else
871 { try
872 { FileWriter fw=new FileWriter(saveFileName);
873 BufferedWriter bfw=new BufferedWriter(fw);
874 bfw.write(editArea.getText(),0,editArea.getText().length());
875 bfw.flush();
876 bfw.close();
877 isNewFile=false;
878 currentFile=saveFileName;
879 oldValue=editArea.getText();
880 this.setTitle(saveFileName.getName()+" - 记事本");
881 statusLabel.setText("当前打开文件："+saveFileName.getAbsoluteFile());
882 }
883 catch (IOException ioException)
884 {
885 }
886 }
887 }
888 else if(saveChoose==JOptionPane.NO_OPTION)
889 { String str=null;
890 JFileChooser fileChooser=new JFileChooser();
891 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
892
893 fileChooser.setDialogTitle("打开文件");
894 int result=fileChooser.showOpenDialog(this);
895 if(result==JFileChooser.CANCEL_OPTION)
896 { statusLabel.setText("您没有选择任何文件");
897 return;
898 }
899 File fileName=fileChooser.getSelectedFile();
900 if(fileName==null || fileName.getName().equals(""))
901 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
902 }
903 else
904 { try
905 { FileReader fr=new FileReader(fileName);
906 BufferedReader bfr=new BufferedReader(fr);
907 editArea.setText("");
908 while((str=bfr.readLine())!=null)
909 { editArea.append(str);
910 }
911 this.setTitle(fileName.getName()+" - 记事本");
912 statusLabel.setText(" 当前打开文件："+fileName.getAbsoluteFile());
913 fr.close();
914 isNewFile=false;
915 currentFile=fileName;
916 oldValue=editArea.getText();
917 }
918 catch (IOException ioException)
919 {
920 }
921 }
922 }
923 else
924 { return;
925 }
926 }
927 else
928 { String str=null;
929 JFileChooser fileChooser=new JFileChooser();
930 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
931 fileChooser.setDialogTitle("打开文件");
932 int result=fileChooser.showOpenDialog(this);
933 if(result==JFileChooser.CANCEL_OPTION)
934 { statusLabel.setText(" 您没有选择任何文件 ");
935 return;
936 }
937 File fileName=fileChooser.getSelectedFile();
938 if(fileName==null || fileName.getName().equals(""))
939 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
940 }
941 else
942 { try
943 { FileReader fr=new FileReader(fileName);
944 BufferedReader bfr=new BufferedReader(fr);
945 editArea.setText("");
946 while((str=bfr.readLine())!=null)
947 { editArea.append(str);
948 }
949 this.setTitle(fileName.getName()+" - 记事本");
950 statusLabel.setText(" 当前打开文件："+fileName.getAbsoluteFile());
951 fr.close();
952 isNewFile=false;
953 currentFile=fileName;
954 oldValue=editArea.getText();
955 }
956 catch (IOException ioException)
957 {
958 }
959 }
960 }
961 }
962 else if(e.getSource()==fileMenu_Save)
963 { editArea.requestFocus();
964 if(isNewFile)
965 { String str=null;
966 JFileChooser fileChooser=new JFileChooser();
967 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
968 fileChooser.setDialogTitle("保存");
969 int result=fileChooser.showSaveDialog(this);
970 if(result==JFileChooser.CANCEL_OPTION)
971 { statusLabel.setText("您没有选择任何文件");
972 return;
973 }
974 File saveFileName=fileChooser.getSelectedFile();
975 if(saveFileName==null || saveFileName.getName().equals(""))
976 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
977 }
978 else
979 { try
980 { FileWriter fw=new FileWriter(saveFileName);
981 BufferedWriter bfw=new BufferedWriter(fw);
982 bfw.write(editArea.getText(),0,editArea.getText().length());
983 bfw.flush();
984 bfw.close();
985 isNewFile=false;
986 currentFile=saveFileName;
987 oldValue=editArea.getText();
988 this.setTitle(saveFileName.getName()+" - 记事本");
989 statusLabel.setText("当前打开文件："+saveFileName.getAbsoluteFile());
990 }
991 catch (IOException ioException)
992 {
993 }
994 }
995 }
996 else
997 { try
998 { FileWriter fw=new FileWriter(currentFile);
999 BufferedWriter bfw=new BufferedWriter(fw);
1000 bfw.write(editArea.getText(),0,editArea.getText().length());
1001 bfw.flush();
1002 fw.close();
1003 }
1004 catch(IOException ioException)
1005 {
1006 }
1007 }
1008 }
1009 else if(e.getSource()==fileMenu_SaveAs)
1010 { editArea.requestFocus();
1011 String str=null;
1012 JFileChooser fileChooser=new JFileChooser();
1013 fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
1014 fileChooser.setDialogTitle("另存为");
1015 int result=fileChooser.showSaveDialog(this);
1016 if(result==JFileChooser.CANCEL_OPTION)
1017 { statusLabel.setText(" 您没有选择任何文件");
1018 return;
1019 }
1020 File saveFileName=fileChooser.getSelectedFile();
1021 if(saveFileName==null||saveFileName.getName().equals(""))
1022 { JOptionPane.showMessageDialog(this,"不合法的文件名","不合法的文件名",JOptionPane.ERROR_MESSAGE);
1023 }
1024 else
1025 { try
1026 { FileWriter fw=new FileWriter(saveFileName);
1027 BufferedWriter bfw=new BufferedWriter(fw);
1028 bfw.write(editArea.getText(),0,editArea.getText().length());
1029 bfw.flush();
1030 fw.close();
1031 oldValue=editArea.getText();
1032 this.setTitle(saveFileName.getName()+" - 记事本");
1033 statusLabel.setText(" 当前打开文件:"+saveFileName.getAbsoluteFile());
1034 }
1035 catch(IOException ioException)
1036 {
1037 }
1038 }
1039 }
1040 else if(e.getSource()==fileMenu_PageSetUp)
1041 { editArea.requestFocus();
1042 JOptionPane.showMessageDialog(this,"Sorry,正在开发中！","提示",JOptionPane.WARNING_MESSAGE);
1043 }
1044 else if(e.getSource()==fileMenu_Print)
1045 { editArea.requestFocus();
1046 JOptionPane.showMessageDialog(this,"Sorry,正在开发中！","提示",JOptionPane.WARNING_MESSAGE);
1047 }
1048 else if(e.getSource()==fileMenu_Exit)
1049 { int exitChoose=JOptionPane.showConfirmDialog(this,"确定要退出吗?","退出提示",JOptionPane.OK_CANCEL_OPTION);
1050 if(exitChoose==JOptionPane.OK_OPTION)
1051 { System.exit(0);
1052 }
1053 else
1054 { return;
1055 }
1056 }
1057 else if(e.getSource()==editMenu_Undo || e.getSource()==popupMenu_Undo)
1058 { editArea.requestFocus();
1059 if(undo.canUndo())
1060 { try
1061 { undo.undo();
1062 }
1063 catch (CannotUndoException ex)
1064 { System.out.println("Unable to undo:" + ex);
1065 //ex.printStackTrace();
1066 }
1067 }
1068 if(!undo.canUndo())
1069 { editMenu_Undo.setEnabled(false);
1070 }
1071 }
1072 else if(e.getSource()==editMenu_Cut || e.getSource()==popupMenu_Cut)
1073 { editArea.requestFocus();
1074 String text=editArea.getSelectedText();
1075 StringSelection selection=new StringSelection(text);
1076 clipBoard.setContents(selection,null);
1077 editArea.replaceRange("",editArea.getSelectionStart(),editArea.getSelectionEnd());
1078 checkMenuItemEnabled();
1079 }
1080 else if(e.getSource()==editMenu_Copy || e.getSource()==popupMenu_Copy)
1081 { editArea.requestFocus();
1082 String text=editArea.getSelectedText();
1083 StringSelection selection=new StringSelection(text);
1084 clipBoard.setContents(selection,null);
1085 checkMenuItemEnabled();
1086 }
1087 else if(e.getSource()==editMenu_Paste || e.getSource()==popupMenu_Paste)
1088 { editArea.requestFocus();
1089 Transferable contents=clipBoard.getContents(this);
1090 if(contents==null)return;
1091 String text="";
1092 try
1093 { text=(String)contents.getTransferData(DataFlavor.stringFlavor);
1094 }
1095 catch (Exception exception)
1096 {
1097 }
1098 editArea.replaceRange(text,editArea.getSelectionStart(),editArea.getSelectionEnd());
1099 checkMenuItemEnabled();
1100 }
1101 else if(e.getSource()==editMenu_Delete || e.getSource()==popupMenu_Delete)
1102 { editArea.requestFocus();
1103 editArea.replaceRange("",editArea.getSelectionStart(),editArea.getSelectionEnd());
1104 checkMenuItemEnabled();
1105 }
1106 else if(e.getSource()==editMenu_Find)
1107 { editArea.requestFocus();
1108 find();
1109 }
1110 else if(e.getSource()==editMenu_FindNext)
1111 { editArea.requestFocus();
1112 find();
1113 }
1114 else if(e.getSource()==editMenu_Replace)
1115 { editArea.requestFocus();
1116 replace();
1117 }
1118 else if(e.getSource()==editMenu_GoTo)
1119 { editArea.requestFocus();
1120 JOptionPane.showMessageDialog(this,"Sorry,正在开发中！","提示",JOptionPane.WARNING_MESSAGE);
1121 }
1122 else if(e.getSource()==editMenu_TimeDate)
1123 { editArea.requestFocus();
1124 Calendar rightNow=Calendar.getInstance();
1125 Date date=rightNow.getTime();
1126 editArea.insert(date.toString(),editArea.getCaretPosition());
1127 }
1128 else if(e.getSource()==editMenu_SelectAll || e.getSource()==popupMenu_SelectAll)
1129 { editArea.selectAll();
1130 }
1131 else if(e.getSource()==formatMenu_LineWrap)
1132 { if(formatMenu_LineWrap.getState())
1133 editArea.setLineWrap(true);
1134 else
1135 editArea.setLineWrap(false);
1136 }
1137 else if(e.getSource()==formatMenu_Font)
1138 { editArea.requestFocus();
1139 font();
1140 }
1141 else if(e.getSource()==viewMenu_Status)
1142 { if(viewMenu_Status.getState())
1143 statusLabel.setVisible(true);
1144 else
1145 statusLabel.setVisible(false);
1146 }
1147
1148 else if(e.getSource()==helpMenu_AboutNotepad)
1149 { editArea.requestFocus();
1150 JOptionPane.showMessageDialog(this,
1151 " 注:\n \n" +
1152
1153 " 这只是个简单的记事本哦！\n",
1154 "关于记事本·",JOptionPane.INFORMATION_MESSAGE);
1155 }
1156 }
1157
1158 public void removeUpdate(DocumentEvent e)
1159 { editMenu_Undo.setEnabled(true);
1160 }
1161 public void insertUpdate(DocumentEvent e)
1162 { editMenu_Undo.setEnabled(true);
1163 }
1164 public void changedUpdate(DocumentEvent e)
1165 { editMenu_Undo.setEnabled(true);
1166 }
1167
1168 class UndoHandler implements UndoableEditListener
1169 { public void undoableEditHappened(UndoableEditEvent uee)
1170 { undo.addEdit(uee.getEdit());
1171 }
1172 }
1173 public static void main(String args[])
1174 { NoteTest notepad=new NoteTest();
1175 notepad.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
1176 }
1177 }
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