-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathnotepad.java
More file actions
486 lines (394 loc) · 12.4 KB
/
Copy pathnotepad.java
File metadata and controls
486 lines (394 loc) · 12.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
package notepad;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.JButton;
import javax.swing.border.LineBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.undo.UndoManager;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dialog.ModalityType;
import javax.swing.border.BevelBorder;
import javax.swing.UIManager;
import javax.swing.JTextField;
import javax.swing.JScrollPane;
import java.awt.Font;
import java.awt.TextArea;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import javax.swing.SwingConstants;
import javax.swing.JTextArea;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
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.io.InputStream;
import java.io.PrintWriter;
import java.awt.event.ActionEvent;
import java.awt.event.InputMethodListener;
import java.awt.event.InputMethodEvent;
public class notepad implements ActionListener, DocumentListener{
private JFrame frame = new JFrame();
private JScrollPane scrollPane = new JScrollPane();
private JTextArea textArea = new JTextArea();
private JMenu filemenu = new JMenu("文件");
private JMenuItem f_new = new JMenuItem("新建");
private JMenuItem f_open = new JMenuItem("打开");
private JMenuItem f_save = new JMenuItem("保存");
private JMenuItem f_saveas = new JMenuItem("另存为");
private JMenuItem f_exit = new JMenuItem("退出");
private JMenu editmenu = new JMenu("编辑");
private JMenuItem e_undo = new JMenuItem("撤销");
private JMenuItem e_redo = new JMenuItem("重做");
private JMenuItem e_copy = new JMenuItem("复制");
private JMenuItem e_cut = new JMenuItem("剪切");
private JMenuItem e_paste = new JMenuItem("粘贴");
private JMenuItem e_selectall = new JMenuItem("全选");
private JMenuItem e_find = new JMenuItem("查找");
private JMenuItem e_replace = new JMenuItem("替换");
private JMenuItem e_jump = new JMenuItem("转到");
private JMenu format = new JMenu("格式");
private JMenuItem f_font = new JMenuItem("字体...");
private JMenuItem f_color = new JMenuItem("颜色...");
private JMenu view = new JMenu("查看");
private JMenu help = new JMenu("帮助");
private JMenuItem h_help = new JMenuItem("帮助主题");
private JMenuItem h_about = new JMenuItem("关于我的记事本");
private JFileChooser fc = new JFileChooser("C:\\Users\\ming\\Desktop");
private File file;
private boolean saveflag = true;
private UndoManager undoManager = new UndoManager();
private Clipboard clipboard;
private findJDialog fj;
private replaceJDialog rj;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
notepad window = new notepad();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public notepad() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame.setBounds(100, 100, 946, 617);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
frame.setLocationRelativeTo(null); //居中
scrollPane.setBounds(0, 0, 928, 544);
frame.getContentPane().add(scrollPane);
scrollPane.setViewportView(textArea);
JMenuBar menuBar = new JMenuBar();
frame.setJMenuBar(menuBar);
menuBar.add(filemenu);
filemenu.add(f_new);
filemenu.add(f_open);
filemenu.add(f_save);
filemenu.add(f_saveas);
filemenu.insertSeparator(4); //分隔线
filemenu.add(f_exit);
menuBar.add(editmenu);
editmenu.add(e_undo);
editmenu.add(e_redo);
editmenu.add(e_copy);
editmenu.add(e_cut);
editmenu.add(e_paste);
editmenu.add(e_selectall);
editmenu.add(e_find);
editmenu.add(e_replace);
editmenu.add(e_jump);
menuBar.add(format);
JCheckBoxMenuItem f_wordwrap = new JCheckBoxMenuItem("自动换行");
format.add(f_wordwrap);
format.add(f_font);
format.add(f_color);
menuBar.add(view);
menuBar.add(help);
help.add(h_help);
help.add(h_about);
f_save.setEnabled(false);
f_saveas.setEnabled(false);
clipboard = frame.getToolkit().getSystemClipboard();
h_about.addActionListener(this);
f_open.addActionListener(this);
f_save.addActionListener(this);
f_new.addActionListener(this);
f_saveas.addActionListener(this);
f_exit.addActionListener(this);
textArea.getDocument().addDocumentListener(this);
textArea.getDocument().addUndoableEditListener(undoManager);
e_undo.addActionListener(this);
e_redo.addActionListener(this);
e_copy.addActionListener(this);
e_paste.addActionListener(this);
e_cut.addActionListener(this);
e_selectall.addActionListener(this);
e_find.addActionListener(this);
e_replace.addActionListener(this);
e_jump.addActionListener(this);
e_undo.setAccelerator(KeyStroke.getKeyStroke('Z',InputEvent.CTRL_MASK));
e_redo.setAccelerator(KeyStroke.getKeyStroke('Y',InputEvent.CTRL_MASK));
e_copy.setAccelerator(KeyStroke.getKeyStroke('C',InputEvent.CTRL_MASK));
e_cut.setAccelerator(KeyStroke.getKeyStroke('X',InputEvent.CTRL_MASK));
e_paste.setAccelerator(KeyStroke.getKeyStroke('V',InputEvent.CTRL_MASK));
e_selectall.setAccelerator(KeyStroke.getKeyStroke('A',InputEvent.CTRL_MASK));
e_find.setAccelerator(KeyStroke.getKeyStroke('F',InputEvent.CTRL_MASK));
e_replace.setAccelerator(KeyStroke.getKeyStroke('H',InputEvent.CTRL_MASK));
e_jump.setAccelerator(KeyStroke.getKeyStroke('J',InputEvent.CTRL_MASK));
f_new.setAccelerator(KeyStroke.getKeyStroke('N',InputEvent.CTRL_MASK));
f_open.setAccelerator(KeyStroke.getKeyStroke('O',InputEvent.CTRL_MASK));
f_save.setAccelerator(KeyStroke.getKeyStroke('S',InputEvent.CTRL_MASK));
f_saveas.setAccelerator(KeyStroke.getKeyStroke('S', InputEvent.CTRL_MASK | InputEvent.SHIFT_MASK, true));
f_exit.setAccelerator(KeyStroke.getKeyStroke('D', InputEvent.CTRL_MASK));
textArea.setText("");
file = null;
textArea.setVisible(true);
f_save.setEnabled(true);
f_saveas.setEnabled(true);
textArea.grabFocus();
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
String cmd = e.getActionCommand();
if("新建".equals(cmd)) {
textArea.setText("");
file = null;
textArea.setVisible(true);
f_save.setEnabled(true);
f_saveas.setEnabled(true);
textArea.grabFocus();
}
if("关于我的记事本".equals(cmd)) {
JOptionPane.showMessageDialog(null, "菜单测试", "关于", 0);
}
if("打开".equals(cmd)){
int returanVal = fc.showOpenDialog(null);
if(returanVal == JFileChooser.APPROVE_OPTION) {
file = fc.getSelectedFile();
try {
textArea.setVisible(true);
textArea.setText("");
FileReader fr = new FileReader(file);
BufferedReader br = new BufferedReader(fr);
String s;
try {
while((s = br.readLine()) != null) {
textArea.append(s);
textArea.append("\n");
}
br.close();
fr.close();
f_save.setEnabled(true);
f_saveas.setEnabled(true);
} catch (IOException e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件读取出错", "错误", 0);
}
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件打开出错", "错误", 0);
}
}
//获取光标
}
if("保存".equals(cmd)) {
if(file == null)
{
int flag = fc.showSaveDialog(null);
if (flag == JFileChooser.APPROVE_OPTION) {
file = fc.getSelectedFile();
}
System.out.println("ctrl sdfsf");
}
try {
String s = textArea.getText();
FileWriter fw = new FileWriter(file);
try {
fw.write(s);
fw.flush();
fw.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件写入出错", "错误", 0);
}
} catch (Exception e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件保存出错", "错误", 0);
}
saveflag = true;
}
if("另存为".equals(cmd)) {
file = null;
if(file == null)
{
int flag = fc.showSaveDialog(null);
if (flag == JFileChooser.APPROVE_OPTION) {
file = fc.getSelectedFile();
}
}
try {
String s = textArea.getText();
FileWriter fw = new FileWriter(file);
try {
fw.write(s);
fw.flush();
fw.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件写入出错", "错误", 0);
}
} catch (Exception e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件保存出错", "错误", 0);
}
saveflag = true;
}
if("退出".equals(cmd)) {
if(saveflag == false)
{
int n = JOptionPane.showConfirmDialog(null, "你要保存吗");
if(n == 0) {
try {
String s = textArea.getText();
FileWriter fw = new FileWriter(file);
try {
fw.write(s);
fw.flush();
fw.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件写入出错", "错误", 0);
}
} catch (Exception e1) {
// TODO Auto-generated catch block
JOptionPane.showMessageDialog(null, "文件保存出错", "错误", 0);
}
}
}
System.exit(0);
}
if("撤销".equals(cmd)) {
if (undoManager.canUndo()) {
undoManager.undo();
}
}
if("重做".equals(cmd)) {
if (undoManager.canRedo()) {
undoManager.redo();
}
}
if("剪切".equals(cmd)) {
String tempText = textArea.getSelectedText();
StringSelection editText =
new StringSelection(tempText);
clipboard.setContents(editText,null);
int start= textArea.getSelectionStart();
int end = textArea.getSelectionEnd();
textArea.replaceRange("",start,end) ;
}
if("复制".equals(cmd)) {
String tempText = textArea.getSelectedText();
StringSelection editText = new StringSelection(tempText);
clipboard.setContents(editText,null);
}
if("粘贴".equals(cmd)) {
Transferable contents = clipboard.getContents(this);
DataFlavor flavor= DataFlavor.stringFlavor;
if( contents.isDataFlavorSupported(flavor)){
try
{
String str;
str = (String)contents.getTransferData(flavor);
textArea.append(str);
}catch(Exception ex)
{
ex.printStackTrace();
}
}
}
if("全选".equals(cmd)) {
textArea.selectAll();
}
if("查找".equals(cmd)) {
/*
* 判断查找窗口是否打开
* 如果已经打开了就没有必要再创建一个类了
*/
if(fj.getisopen() == false)
{
fj = new findJDialog(textArea);
fj.setVisible(true);
fj.setLocationRelativeTo(null);
}
}
if("替换".equals(cmd)) {
/*
* 判断查找窗口是否打开
* 如果已经打开了就没有必要再创建一个类了
*/
if(rj.getisopen() == false)
{
rj = new replaceJDialog();
rj.setVisible(true);
rj.setLocationRelativeTo(null);
}
}
}
@Override
public void changedUpdate(DocumentEvent arg0) {
// TODO Auto-generated method stub
if(saveflag)
{
saveflag = false;
}
}
@Override
public void insertUpdate(DocumentEvent arg0) {
// TODO Auto-generated method stub
if(saveflag)
{
saveflag = false;
}
}
@Override
public void removeUpdate(DocumentEvent arg0) {
// TODO Auto-generated method stub
if(saveflag)
{
saveflag = false;
}
}
}