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12b55d76 KL |
1 | /* |
2 | * Jexer - Java Text User Interface | |
3 | * | |
4 | * The MIT License (MIT) | |
5 | * | |
a69ed767 | 6 | * Copyright (C) 2019 Kevin Lamonte |
12b55d76 KL |
7 | * |
8 | * Permission is hereby granted, free of charge, to any person obtaining a | |
9 | * copy of this software and associated documentation files (the "Software"), | |
10 | * to deal in the Software without restriction, including without limitation | |
11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
12 | * and/or sell copies of the Software, and to permit persons to whom the | |
13 | * Software is furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
24 | * DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
27 | * @version 1 | |
28 | */ | |
29 | package jexer; | |
30 | ||
71a389c9 KL |
31 | import java.io.IOException; |
32 | ||
12b55d76 | 33 | import jexer.bits.CellAttributes; |
43ee96da | 34 | import jexer.bits.StringUtils; |
101bc589 | 35 | import jexer.event.TCommandEvent; |
12b55d76 KL |
36 | import jexer.event.TKeypressEvent; |
37 | import jexer.event.TMouseEvent; | |
e8a11f98 | 38 | import jexer.event.TResizeEvent; |
12b55d76 KL |
39 | import jexer.teditor.Document; |
40 | import jexer.teditor.Line; | |
41 | import jexer.teditor.Word; | |
101bc589 | 42 | import static jexer.TCommand.*; |
12b55d76 KL |
43 | import static jexer.TKeypress.*; |
44 | ||
45 | /** | |
46 | * TEditorWidget displays an editable text document. It is unaware of | |
47 | * scrolling behavior, but can respond to mouse and keyboard events. | |
48 | */ | |
101bc589 | 49 | public class TEditorWidget extends TWidget implements EditMenuUser { |
12b55d76 | 50 | |
615a0d99 KL |
51 | // ------------------------------------------------------------------------ |
52 | // Constants -------------------------------------------------------------- | |
53 | // ------------------------------------------------------------------------ | |
54 | ||
b1a8acec KL |
55 | /** |
56 | * The number of lines to scroll on mouse wheel up/down. | |
57 | */ | |
58 | private static final int wheelScrollSize = 3; | |
59 | ||
615a0d99 KL |
60 | // ------------------------------------------------------------------------ |
61 | // Variables -------------------------------------------------------------- | |
62 | // ------------------------------------------------------------------------ | |
63 | ||
12b55d76 KL |
64 | /** |
65 | * The document being edited. | |
66 | */ | |
67 | private Document document; | |
68 | ||
e8a11f98 KL |
69 | /** |
70 | * The default color for the TEditor class. | |
71 | */ | |
72 | private CellAttributes defaultColor = null; | |
73 | ||
74 | /** | |
75 | * The topmost line number in the visible area. 0-based. | |
76 | */ | |
77 | private int topLine = 0; | |
78 | ||
79 | /** | |
80 | * The leftmost column number in the visible area. 0-based. | |
81 | */ | |
82 | private int leftColumn = 0; | |
83 | ||
101bc589 KL |
84 | /** |
85 | * If true, the mouse is dragging a selection. | |
86 | */ | |
87 | private boolean inSelection = false; | |
88 | ||
89 | /** | |
90 | * Selection starting column. | |
91 | */ | |
92 | private int selectionColumn0; | |
93 | ||
94 | /** | |
95 | * Selection starting line. | |
96 | */ | |
97 | private int selectionLine0; | |
98 | ||
99 | /** | |
100 | * Selection ending column. | |
101 | */ | |
102 | private int selectionColumn1; | |
103 | ||
104 | /** | |
105 | * Selection ending line. | |
106 | */ | |
107 | private int selectionLine1; | |
108 | ||
615a0d99 KL |
109 | // ------------------------------------------------------------------------ |
110 | // Constructors ----------------------------------------------------------- | |
111 | // ------------------------------------------------------------------------ | |
112 | ||
12b55d76 KL |
113 | /** |
114 | * Public constructor. | |
115 | * | |
116 | * @param parent parent widget | |
117 | * @param text text on the screen | |
118 | * @param x column relative to parent | |
119 | * @param y row relative to parent | |
120 | * @param width width of text area | |
121 | * @param height height of text area | |
122 | */ | |
123 | public TEditorWidget(final TWidget parent, final String text, final int x, | |
124 | final int y, final int width, final int height) { | |
125 | ||
126 | // Set parent and window | |
127 | super(parent, x, y, width, height); | |
128 | ||
129 | setCursorVisible(true); | |
e8a11f98 KL |
130 | |
131 | defaultColor = getTheme().getColor("teditor"); | |
132 | document = new Document(text, defaultColor); | |
12b55d76 KL |
133 | } |
134 | ||
615a0d99 | 135 | // ------------------------------------------------------------------------ |
101bc589 | 136 | // Event handlers --------------------------------------------------------- |
615a0d99 KL |
137 | // ------------------------------------------------------------------------ |
138 | ||
12b55d76 KL |
139 | /** |
140 | * Handle mouse press events. | |
141 | * | |
142 | * @param mouse mouse button press event | |
143 | */ | |
144 | @Override | |
145 | public void onMouseDown(final TMouseEvent mouse) { | |
146 | if (mouse.isMouseWheelUp()) { | |
b1a8acec KL |
147 | for (int i = 0; i < wheelScrollSize; i++) { |
148 | if (topLine > 0) { | |
149 | topLine--; | |
150 | alignDocument(false); | |
151 | } | |
e8a11f98 | 152 | } |
12b55d76 KL |
153 | return; |
154 | } | |
155 | if (mouse.isMouseWheelDown()) { | |
b1a8acec KL |
156 | for (int i = 0; i < wheelScrollSize; i++) { |
157 | if (topLine < document.getLineCount() - 1) { | |
158 | topLine++; | |
159 | alignDocument(true); | |
160 | } | |
e8a11f98 | 161 | } |
12b55d76 KL |
162 | return; |
163 | } | |
164 | ||
e8a11f98 | 165 | if (mouse.isMouse1()) { |
101bc589 | 166 | // Selection. |
20c416a0 | 167 | inSelection = true; |
20c416a0 | 168 | selectionLine0 = topLine + mouse.getY(); |
3c5921e6 KL |
169 | selectionColumn0 = leftColumn + mouse.getX(); |
170 | selectionColumn0 = Math.max(0, Math.min(selectionColumn0, | |
171 | document.getLine(selectionLine0).getDisplayLength() - 1)); | |
20c416a0 KL |
172 | selectionColumn1 = selectionColumn0; |
173 | selectionLine1 = selectionLine0; | |
101bc589 KL |
174 | |
175 | // Set the row and column | |
176 | int newLine = topLine + mouse.getY(); | |
177 | int newX = leftColumn + mouse.getX(); | |
178 | if (newLine > document.getLineCount() - 1) { | |
179 | // Go to the end | |
180 | document.setLineNumber(document.getLineCount() - 1); | |
181 | document.end(); | |
182 | if (newLine > document.getLineCount() - 1) { | |
183 | setCursorY(document.getLineCount() - 1 - topLine); | |
184 | } else { | |
185 | setCursorY(mouse.getY()); | |
186 | } | |
187 | alignCursor(); | |
188 | if (inSelection) { | |
189 | selectionColumn1 = document.getCursor(); | |
190 | selectionLine1 = document.getLineNumber(); | |
101bc589 KL |
191 | } |
192 | return; | |
193 | } | |
194 | ||
195 | document.setLineNumber(newLine); | |
196 | setCursorY(mouse.getY()); | |
197 | if (newX >= document.getCurrentLine().getDisplayLength()) { | |
198 | document.end(); | |
199 | alignCursor(); | |
200 | } else { | |
201 | document.setCursor(newX); | |
202 | setCursorX(mouse.getX()); | |
203 | } | |
204 | if (inSelection) { | |
205 | selectionColumn1 = document.getCursor(); | |
206 | selectionLine1 = document.getLineNumber(); | |
101bc589 KL |
207 | } |
208 | return; | |
209 | } else { | |
210 | inSelection = false; | |
211 | } | |
212 | ||
213 | // Pass to children | |
214 | super.onMouseDown(mouse); | |
215 | } | |
216 | ||
217 | /** | |
218 | * Handle mouse motion events. | |
219 | * | |
220 | * @param mouse mouse motion event | |
221 | */ | |
222 | @Override | |
223 | public void onMouseMotion(final TMouseEvent mouse) { | |
224 | ||
225 | if (mouse.isMouse1()) { | |
8d3480c7 KL |
226 | // Set the row and column |
227 | int newLine = topLine + mouse.getY(); | |
228 | int newX = leftColumn + mouse.getX(); | |
229 | if ((newLine < 0) || (newX < 0)) { | |
230 | return; | |
231 | } | |
232 | ||
101bc589 KL |
233 | // Selection. |
234 | if (inSelection) { | |
8d3480c7 KL |
235 | selectionColumn1 = newX; |
236 | selectionLine1 = newLine; | |
20c416a0 | 237 | } else { |
101bc589 | 238 | inSelection = true; |
8d3480c7 KL |
239 | selectionColumn0 = newX; |
240 | selectionLine0 = newLine; | |
101bc589 KL |
241 | selectionColumn1 = selectionColumn0; |
242 | selectionLine1 = selectionLine0; | |
101bc589 KL |
243 | } |
244 | ||
df602ccf | 245 | if (newLine > document.getLineCount() - 1) { |
e8a11f98 KL |
246 | // Go to the end |
247 | document.setLineNumber(document.getLineCount() - 1); | |
248 | document.end(); | |
df602ccf KL |
249 | if (newLine > document.getLineCount() - 1) { |
250 | setCursorY(document.getLineCount() - 1 - topLine); | |
e8a11f98 | 251 | } else { |
df602ccf | 252 | setCursorY(mouse.getY()); |
e8a11f98 KL |
253 | } |
254 | alignCursor(); | |
101bc589 KL |
255 | if (inSelection) { |
256 | selectionColumn1 = document.getCursor(); | |
257 | selectionLine1 = document.getLineNumber(); | |
101bc589 | 258 | } |
e8a11f98 KL |
259 | return; |
260 | } | |
e8a11f98 KL |
261 | document.setLineNumber(newLine); |
262 | setCursorY(mouse.getY()); | |
4297b49b | 263 | if (newX >= document.getCurrentLine().getDisplayLength()) { |
e8a11f98 KL |
264 | document.end(); |
265 | alignCursor(); | |
266 | } else { | |
df602ccf | 267 | document.setCursor(newX); |
e8a11f98 KL |
268 | setCursorX(mouse.getX()); |
269 | } | |
101bc589 KL |
270 | if (inSelection) { |
271 | selectionColumn1 = document.getCursor(); | |
272 | selectionLine1 = document.getLineNumber(); | |
101bc589 | 273 | } |
e8a11f98 KL |
274 | return; |
275 | } | |
12b55d76 KL |
276 | |
277 | // Pass to children | |
278 | super.onMouseDown(mouse); | |
279 | } | |
280 | ||
281 | /** | |
282 | * Handle keystrokes. | |
283 | * | |
284 | * @param keypress keystroke event | |
285 | */ | |
286 | @Override | |
287 | public void onKeypress(final TKeypressEvent keypress) { | |
43ee96da | 288 | if (keypress.getKey().isShift()) { |
101bc589 KL |
289 | // Selection. |
290 | if (!inSelection) { | |
291 | inSelection = true; | |
292 | selectionColumn0 = document.getCursor(); | |
293 | selectionLine0 = document.getLineNumber(); | |
294 | selectionColumn1 = selectionColumn0; | |
295 | selectionLine1 = selectionLine0; | |
101bc589 KL |
296 | } |
297 | } else { | |
43ee96da KL |
298 | if (keypress.equals(kbLeft) |
299 | || keypress.equals(kbRight) | |
300 | || keypress.equals(kbUp) | |
301 | || keypress.equals(kbDown) | |
302 | || keypress.equals(kbPgDn) | |
303 | || keypress.equals(kbPgUp) | |
304 | || keypress.equals(kbHome) | |
305 | || keypress.equals(kbEnd) | |
306 | ) { | |
307 | // Non-shifted navigation keys disable selection. | |
308 | inSelection = false; | |
309 | } | |
101bc589 KL |
310 | } |
311 | ||
312 | if (keypress.equals(kbLeft) | |
313 | || keypress.equals(kbShiftLeft) | |
314 | ) { | |
df602ccf KL |
315 | document.left(); |
316 | alignTopLine(false); | |
101bc589 KL |
317 | } else if (keypress.equals(kbRight) |
318 | || keypress.equals(kbShiftRight) | |
319 | ) { | |
df602ccf KL |
320 | document.right(); |
321 | alignTopLine(true); | |
e23989a4 KL |
322 | } else if (keypress.equals(kbAltLeft) |
323 | || keypress.equals(kbCtrlLeft) | |
43ee96da KL |
324 | || keypress.equals(kbAltShiftLeft) |
325 | || keypress.equals(kbCtrlShiftLeft) | |
e23989a4 KL |
326 | ) { |
327 | document.backwardsWord(); | |
328 | alignTopLine(false); | |
329 | } else if (keypress.equals(kbAltRight) | |
330 | || keypress.equals(kbCtrlRight) | |
43ee96da KL |
331 | || keypress.equals(kbAltShiftRight) |
332 | || keypress.equals(kbCtrlShiftRight) | |
e23989a4 KL |
333 | ) { |
334 | document.forwardsWord(); | |
335 | alignTopLine(true); | |
101bc589 KL |
336 | } else if (keypress.equals(kbUp) |
337 | || keypress.equals(kbShiftUp) | |
338 | ) { | |
71a389c9 KL |
339 | document.up(); |
340 | alignTopLine(false); | |
101bc589 KL |
341 | } else if (keypress.equals(kbDown) |
342 | || keypress.equals(kbShiftDown) | |
343 | ) { | |
71a389c9 KL |
344 | document.down(); |
345 | alignTopLine(true); | |
43ee96da KL |
346 | } else if (keypress.equals(kbPgUp) |
347 | || keypress.equals(kbShiftPgUp) | |
348 | ) { | |
71a389c9 KL |
349 | document.up(getHeight() - 1); |
350 | alignTopLine(false); | |
43ee96da KL |
351 | } else if (keypress.equals(kbPgDn) |
352 | || keypress.equals(kbShiftPgDn) | |
353 | ) { | |
71a389c9 KL |
354 | document.down(getHeight() - 1); |
355 | alignTopLine(true); | |
43ee96da KL |
356 | } else if (keypress.equals(kbHome) |
357 | || keypress.equals(kbShiftHome) | |
358 | ) { | |
e8a11f98 KL |
359 | if (document.home()) { |
360 | leftColumn = 0; | |
361 | if (leftColumn < 0) { | |
362 | leftColumn = 0; | |
363 | } | |
364 | setCursorX(0); | |
365 | } | |
43ee96da KL |
366 | } else if (keypress.equals(kbEnd) |
367 | || keypress.equals(kbShiftEnd) | |
368 | ) { | |
e8a11f98 KL |
369 | if (document.end()) { |
370 | alignCursor(); | |
371 | } | |
43ee96da KL |
372 | } else if (keypress.equals(kbCtrlHome) |
373 | || keypress.equals(kbCtrlShiftHome) | |
374 | ) { | |
12b55d76 KL |
375 | document.setLineNumber(0); |
376 | document.home(); | |
e8a11f98 KL |
377 | topLine = 0; |
378 | leftColumn = 0; | |
379 | setCursorX(0); | |
380 | setCursorY(0); | |
43ee96da KL |
381 | } else if (keypress.equals(kbCtrlEnd) |
382 | || keypress.equals(kbCtrlShiftEnd) | |
383 | ) { | |
12b55d76 KL |
384 | document.setLineNumber(document.getLineCount() - 1); |
385 | document.end(); | |
71a389c9 | 386 | alignTopLine(false); |
12b55d76 KL |
387 | } else if (keypress.equals(kbIns)) { |
388 | document.setOverwrite(!document.getOverwrite()); | |
389 | } else if (keypress.equals(kbDel)) { | |
43ee96da KL |
390 | if (inSelection) { |
391 | deleteSelection(); | |
392 | } else { | |
393 | document.del(); | |
394 | } | |
71a389c9 | 395 | alignCursor(); |
39e86397 KL |
396 | } else if (keypress.equals(kbBackspace) |
397 | || keypress.equals(kbBackspaceDel) | |
398 | ) { | |
43ee96da KL |
399 | if (inSelection) { |
400 | deleteSelection(); | |
401 | } else { | |
402 | document.backspace(); | |
403 | } | |
df602ccf KL |
404 | alignTopLine(false); |
405 | } else if (keypress.equals(kbTab)) { | |
43ee96da | 406 | deleteSelection(); |
101bc589 | 407 | // Add spaces until we hit modulo 8. |
df602ccf KL |
408 | for (int i = document.getCursor(); (i + 1) % 8 != 0; i++) { |
409 | document.addChar(' '); | |
410 | } | |
e8a11f98 | 411 | alignCursor(); |
71a389c9 | 412 | } else if (keypress.equals(kbEnter)) { |
43ee96da | 413 | deleteSelection(); |
df602ccf KL |
414 | document.enter(); |
415 | alignTopLine(true); | |
12b55d76 KL |
416 | } else if (!keypress.getKey().isFnKey() |
417 | && !keypress.getKey().isAlt() | |
418 | && !keypress.getKey().isCtrl() | |
419 | ) { | |
420 | // Plain old keystroke, process it | |
43ee96da | 421 | deleteSelection(); |
2d3f60d8 | 422 | document.addChar(keypress.getKey().getChar()); |
71a389c9 | 423 | alignCursor(); |
12b55d76 KL |
424 | } else { |
425 | // Pass other keys (tab etc.) on to TWidget | |
426 | super.onKeypress(keypress); | |
427 | } | |
101bc589 KL |
428 | |
429 | if (inSelection) { | |
430 | selectionColumn1 = document.getCursor(); | |
431 | selectionLine1 = document.getLineNumber(); | |
101bc589 | 432 | } |
12b55d76 KL |
433 | } |
434 | ||
e8a11f98 KL |
435 | /** |
436 | * Method that subclasses can override to handle window/screen resize | |
437 | * events. | |
438 | * | |
439 | * @param resize resize event | |
440 | */ | |
441 | @Override | |
442 | public void onResize(final TResizeEvent resize) { | |
443 | // Change my width/height, and pull the cursor in as needed. | |
444 | if (resize.getType() == TResizeEvent.Type.WIDGET) { | |
445 | setWidth(resize.getWidth()); | |
446 | setHeight(resize.getHeight()); | |
447 | // See if the cursor is now outside the window, and if so move | |
448 | // things. | |
449 | if (getCursorX() >= getWidth()) { | |
450 | leftColumn += getCursorX() - (getWidth() - 1); | |
451 | setCursorX(getWidth() - 1); | |
452 | } | |
453 | if (getCursorY() >= getHeight()) { | |
454 | topLine += getCursorY() - (getHeight() - 1); | |
455 | setCursorY(getHeight() - 1); | |
456 | } | |
457 | } else { | |
458 | // Let superclass handle it | |
459 | super.onResize(resize); | |
460 | } | |
461 | } | |
462 | ||
101bc589 KL |
463 | /** |
464 | * Handle posted command events. | |
465 | * | |
466 | * @param command command event | |
467 | */ | |
468 | @Override | |
469 | public void onCommand(final TCommandEvent command) { | |
470 | if (command.equals(cmCut)) { | |
471 | // Copy text to clipboard, and then remove it. | |
43ee96da | 472 | copySelection(); |
101bc589 KL |
473 | deleteSelection(); |
474 | return; | |
475 | } | |
476 | ||
477 | if (command.equals(cmCopy)) { | |
478 | // Copy text to clipboard. | |
43ee96da | 479 | copySelection(); |
101bc589 KL |
480 | return; |
481 | } | |
482 | ||
483 | if (command.equals(cmPaste)) { | |
484 | // Delete selected text, then paste text from clipboard. | |
485 | deleteSelection(); | |
486 | ||
487 | String text = getClipboard().pasteText(); | |
488 | if (text != null) { | |
489 | for (int i = 0; i < text.length(); ) { | |
490 | int ch = text.codePointAt(i); | |
491 | onKeypress(new TKeypressEvent(false, 0, ch, false, false, | |
492 | false)); | |
493 | i += Character.charCount(ch); | |
494 | } | |
495 | } | |
496 | return; | |
497 | } | |
498 | ||
499 | if (command.equals(cmClear)) { | |
500 | // Remove text. | |
501 | deleteSelection(); | |
502 | return; | |
503 | } | |
504 | ||
505 | } | |
506 | ||
507 | // ------------------------------------------------------------------------ | |
508 | // TWidget ---------------------------------------------------------------- | |
509 | // ------------------------------------------------------------------------ | |
510 | ||
511 | /** | |
512 | * Draw the text box. | |
513 | */ | |
514 | @Override | |
515 | public void draw() { | |
43ee96da KL |
516 | CellAttributes selectedColor = getTheme().getColor("teditor.selected"); |
517 | ||
3c5921e6 KL |
518 | boolean drawSelection = true; |
519 | ||
43ee96da KL |
520 | int startCol = selectionColumn0; |
521 | int startRow = selectionLine0; | |
522 | int endCol = selectionColumn1; | |
523 | int endRow = selectionLine1; | |
524 | ||
525 | if (((selectionColumn1 < selectionColumn0) | |
8d3480c7 KL |
526 | && (selectionLine1 == selectionLine0)) |
527 | || (selectionLine1 < selectionLine0) | |
43ee96da | 528 | ) { |
8d3480c7 KL |
529 | // The user selected from bottom-to-top and/or right-to-left. |
530 | // Reverse the coordinates for the inverted section. | |
43ee96da KL |
531 | startCol = selectionColumn1; |
532 | startRow = selectionLine1; | |
533 | endCol = selectionColumn0; | |
534 | endRow = selectionLine0; | |
535 | } | |
3c5921e6 KL |
536 | if ((startCol == endCol) && (startRow == endRow)) { |
537 | drawSelection = false; | |
538 | } | |
43ee96da | 539 | |
101bc589 KL |
540 | for (int i = 0; i < getHeight(); i++) { |
541 | // Background line | |
542 | getScreen().hLineXY(0, i, getWidth(), ' ', defaultColor); | |
543 | ||
544 | // Now draw document's line | |
545 | if (topLine + i < document.getLineCount()) { | |
546 | Line line = document.getLine(topLine + i); | |
547 | int x = 0; | |
548 | for (Word word: line.getWords()) { | |
549 | // For now, we are cheating: draw outside the left region | |
550 | // if needed and let screen do the clipping. | |
551 | getScreen().putStringXY(x - leftColumn, i, word.getText(), | |
552 | word.getColor()); | |
553 | x += word.getDisplayLength(); | |
554 | if (x - leftColumn > getWidth()) { | |
555 | break; | |
556 | } | |
557 | } | |
101bc589 | 558 | |
43ee96da | 559 | // Highlight selected region |
3c5921e6 | 560 | if (inSelection && drawSelection) { |
43ee96da KL |
561 | if (startRow == endRow) { |
562 | if (topLine + i == startRow) { | |
563 | for (x = startCol; x <= endCol; x++) { | |
564 | putAttrXY(x - leftColumn, i, selectedColor); | |
565 | } | |
566 | } | |
567 | } else { | |
568 | if (topLine + i == startRow) { | |
569 | for (x = startCol; x < line.getDisplayLength(); x++) { | |
570 | putAttrXY(x - leftColumn, i, selectedColor); | |
571 | } | |
572 | } else if (topLine + i == endRow) { | |
573 | for (x = 0; x <= endCol; x++) { | |
574 | putAttrXY(x - leftColumn, i, selectedColor); | |
575 | } | |
576 | } else if ((topLine + i >= startRow) | |
577 | && (topLine + i <= endRow) | |
578 | ) { | |
579 | for (x = 0; x < getWidth(); x++) { | |
580 | putAttrXY(x, i, selectedColor); | |
581 | } | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
586 | } | |
101bc589 KL |
587 | } |
588 | } | |
589 | ||
615a0d99 KL |
590 | // ------------------------------------------------------------------------ |
591 | // TEditorWidget ---------------------------------------------------------- | |
592 | // ------------------------------------------------------------------------ | |
593 | ||
594 | /** | |
595 | * Align visible area with document current line. | |
596 | * | |
597 | * @param topLineIsTop if true, make the top visible line the document | |
598 | * current line if it was off-screen. If false, make the bottom visible | |
599 | * line the document current line. | |
600 | */ | |
601 | private void alignTopLine(final boolean topLineIsTop) { | |
602 | int line = document.getLineNumber(); | |
603 | ||
604 | if ((line < topLine) || (line > topLine + getHeight() - 1)) { | |
605 | // Need to move topLine to bring document back into view. | |
606 | if (topLineIsTop) { | |
607 | topLine = line - (getHeight() - 1); | |
608 | if (topLine < 0) { | |
609 | topLine = 0; | |
610 | } | |
611 | assert (topLine >= 0); | |
612 | } else { | |
613 | topLine = line; | |
614 | assert (topLine >= 0); | |
615 | } | |
616 | } | |
617 | ||
618 | /* | |
619 | System.err.println("line " + line + " topLine " + topLine); | |
620 | */ | |
621 | ||
622 | // Document is in view, let's set cursorY | |
623 | assert (line >= topLine); | |
624 | setCursorY(line - topLine); | |
625 | alignCursor(); | |
626 | } | |
627 | ||
628 | /** | |
629 | * Align document current line with visible area. | |
630 | * | |
631 | * @param topLineIsTop if true, make the top visible line the document | |
632 | * current line if it was off-screen. If false, make the bottom visible | |
633 | * line the document current line. | |
634 | */ | |
635 | private void alignDocument(final boolean topLineIsTop) { | |
636 | int line = document.getLineNumber(); | |
637 | int cursor = document.getCursor(); | |
638 | ||
639 | if ((line < topLine) || (line > topLine + getHeight() - 1)) { | |
640 | // Need to move document to ensure it fits view. | |
641 | if (topLineIsTop) { | |
642 | document.setLineNumber(topLine); | |
643 | } else { | |
644 | document.setLineNumber(topLine + (getHeight() - 1)); | |
645 | } | |
646 | if (cursor < document.getCurrentLine().getDisplayLength()) { | |
647 | document.setCursor(cursor); | |
648 | } | |
649 | } | |
650 | ||
651 | /* | |
652 | System.err.println("getLineNumber() " + document.getLineNumber() + | |
653 | " topLine " + topLine); | |
654 | */ | |
655 | ||
656 | // Document is in view, let's set cursorY | |
657 | setCursorY(document.getLineNumber() - topLine); | |
658 | alignCursor(); | |
659 | } | |
660 | ||
661 | /** | |
662 | * Align visible cursor with document cursor. | |
663 | */ | |
664 | private void alignCursor() { | |
665 | int width = getWidth(); | |
666 | ||
667 | int desiredX = document.getCursor() - leftColumn; | |
668 | if (desiredX < 0) { | |
669 | // We need to push the screen to the left. | |
670 | leftColumn = document.getCursor(); | |
671 | } else if (desiredX > width - 1) { | |
672 | // We need to push the screen to the right. | |
673 | leftColumn = document.getCursor() - (width - 1); | |
674 | } | |
675 | ||
676 | /* | |
677 | System.err.println("document cursor " + document.getCursor() + | |
678 | " leftColumn " + leftColumn); | |
679 | */ | |
680 | ||
681 | ||
682 | setCursorX(document.getCursor() - leftColumn); | |
683 | } | |
684 | ||
71a389c9 KL |
685 | /** |
686 | * Get the number of lines in the underlying Document. | |
687 | * | |
688 | * @return the number of lines | |
689 | */ | |
690 | public int getLineCount() { | |
691 | return document.getLineCount(); | |
692 | } | |
693 | ||
b6faeac0 KL |
694 | /** |
695 | * Get the current visible top row number. 1-based. | |
696 | * | |
697 | * @return the visible top row number. Row 1 is the first row. | |
698 | */ | |
699 | public int getVisibleRowNumber() { | |
700 | return topLine + 1; | |
701 | } | |
702 | ||
703 | /** | |
704 | * Set the current visible row number. 1-based. | |
705 | * | |
706 | * @param row the new visible row number. Row 1 is the first row. | |
707 | */ | |
708 | public void setVisibleRowNumber(final int row) { | |
709 | assert (row > 0); | |
710 | if ((row > 0) && (row < document.getLineCount())) { | |
711 | topLine = row - 1; | |
712 | alignDocument(true); | |
713 | } | |
714 | } | |
715 | ||
71a389c9 KL |
716 | /** |
717 | * Get the current editing row number. 1-based. | |
718 | * | |
719 | * @return the editing row number. Row 1 is the first row. | |
720 | */ | |
721 | public int getEditingRowNumber() { | |
722 | return document.getLineNumber() + 1; | |
723 | } | |
724 | ||
725 | /** | |
726 | * Set the current editing row number. 1-based. | |
727 | * | |
728 | * @param row the new editing row number. Row 1 is the first row. | |
729 | */ | |
730 | public void setEditingRowNumber(final int row) { | |
fe0770f9 KL |
731 | assert (row > 0); |
732 | if ((row > 0) && (row < document.getLineCount())) { | |
733 | document.setLineNumber(row - 1); | |
734 | alignTopLine(true); | |
735 | } | |
71a389c9 KL |
736 | } |
737 | ||
1bc08f18 KL |
738 | /** |
739 | * Set the current visible column number. 1-based. | |
740 | * | |
741 | * @return the visible column number. Column 1 is the first column. | |
742 | */ | |
743 | public int getVisibleColumnNumber() { | |
744 | return leftColumn + 1; | |
745 | } | |
746 | ||
747 | /** | |
748 | * Set the current visible column number. 1-based. | |
749 | * | |
750 | * @param column the new visible column number. Column 1 is the first | |
751 | * column. | |
752 | */ | |
753 | public void setVisibleColumnNumber(final int column) { | |
754 | assert (column > 0); | |
755 | if ((column > 0) && (column < document.getLineLengthMax())) { | |
756 | leftColumn = column - 1; | |
757 | alignDocument(true); | |
758 | } | |
759 | } | |
760 | ||
71a389c9 KL |
761 | /** |
762 | * Get the current editing column number. 1-based. | |
763 | * | |
764 | * @return the editing column number. Column 1 is the first column. | |
765 | */ | |
766 | public int getEditingColumnNumber() { | |
767 | return document.getCursor() + 1; | |
768 | } | |
769 | ||
770 | /** | |
771 | * Set the current editing column number. 1-based. | |
772 | * | |
773 | * @param column the new editing column number. Column 1 is the first | |
774 | * column. | |
775 | */ | |
776 | public void setEditingColumnNumber(final int column) { | |
fe0770f9 KL |
777 | if ((column > 0) && (column < document.getLineLength())) { |
778 | document.setCursor(column - 1); | |
779 | alignCursor(); | |
780 | } | |
71a389c9 KL |
781 | } |
782 | ||
783 | /** | |
784 | * Get the maximum possible row number. 1-based. | |
785 | * | |
786 | * @return the maximum row number. Row 1 is the first row. | |
787 | */ | |
788 | public int getMaximumRowNumber() { | |
789 | return document.getLineCount() + 1; | |
790 | } | |
791 | ||
792 | /** | |
793 | * Get the maximum possible column number. 1-based. | |
794 | * | |
795 | * @return the maximum column number. Column 1 is the first column. | |
796 | */ | |
797 | public int getMaximumColumnNumber() { | |
798 | return document.getLineLengthMax() + 1; | |
799 | } | |
800 | ||
ed76cd41 KL |
801 | /** |
802 | * Get the current editing row plain text. 1-based. | |
803 | * | |
804 | * @param row the editing row number. Row 1 is the first row. | |
805 | * @return the plain text of the row | |
806 | */ | |
807 | public String getEditingRawLine(final int row) { | |
808 | Line line = document.getLine(row - 1); | |
809 | return line.getRawString(); | |
810 | } | |
811 | ||
71a389c9 KL |
812 | /** |
813 | * Get the dirty value. | |
814 | * | |
815 | * @return true if the buffer is dirty | |
816 | */ | |
817 | public boolean isDirty() { | |
818 | return document.isDirty(); | |
819 | } | |
820 | ||
ed76cd41 KL |
821 | /** |
822 | * Unset the dirty flag. | |
823 | */ | |
824 | public void setNotDirty() { | |
825 | document.setNotDirty(); | |
826 | } | |
827 | ||
71a389c9 KL |
828 | /** |
829 | * Save contents to file. | |
830 | * | |
831 | * @param filename file to save to | |
832 | * @throws IOException if a java.io operation throws | |
833 | */ | |
834 | public void saveToFilename(final String filename) throws IOException { | |
835 | document.saveToFilename(filename); | |
836 | } | |
837 | ||
101bc589 KL |
838 | /** |
839 | * Delete text within the selection bounds. | |
840 | */ | |
841 | private void deleteSelection() { | |
3c5921e6 | 842 | if (!inSelection) { |
101bc589 KL |
843 | return; |
844 | } | |
43ee96da KL |
845 | inSelection = false; |
846 | ||
847 | int startCol = selectionColumn0; | |
848 | int startRow = selectionLine0; | |
849 | int endCol = selectionColumn1; | |
850 | int endRow = selectionLine1; | |
851 | ||
8d3480c7 KL |
852 | /* |
853 | System.err.println("INITIAL: " + startRow + " " + startCol + " " + | |
854 | endRow + " " + endCol + " " + | |
855 | document.getLineNumber() + " " + document.getCursor()); | |
856 | */ | |
857 | ||
43ee96da | 858 | if (((selectionColumn1 < selectionColumn0) |
8d3480c7 KL |
859 | && (selectionLine1 == selectionLine0)) |
860 | || (selectionLine1 < selectionLine0) | |
43ee96da | 861 | ) { |
8d3480c7 KL |
862 | // The user selected from bottom-to-top and/or right-to-left. |
863 | // Reverse the coordinates for the inverted section. | |
43ee96da KL |
864 | startCol = selectionColumn1; |
865 | startRow = selectionLine1; | |
866 | endCol = selectionColumn0; | |
867 | endRow = selectionLine0; | |
8d3480c7 KL |
868 | |
869 | if (endRow >= document.getLineCount()) { | |
870 | // The selection started beyond EOF, trim it to EOF. | |
871 | endRow = document.getLineCount() - 1; | |
872 | endCol = document.getLine(endRow).getDisplayLength(); | |
873 | } else if (endRow == document.getLineCount() - 1) { | |
874 | // The selection started beyond EOF, trim it to EOF. | |
875 | if (endCol >= document.getLine(endRow).getDisplayLength()) { | |
876 | endCol = document.getLine(endRow).getDisplayLength() - 1; | |
877 | } | |
878 | } | |
879 | } | |
880 | /* | |
881 | System.err.println("FLIP: " + startRow + " " + startCol + " " + | |
882 | endRow + " " + endCol + " " + | |
883 | document.getLineNumber() + " " + document.getCursor()); | |
884 | System.err.println(" --END: " + endRow + " " + document.getLineCount() + | |
885 | " " + document.getLine(endRow).getDisplayLength()); | |
886 | */ | |
887 | ||
888 | assert (endRow < document.getLineCount()); | |
889 | if (endCol >= document.getLine(endRow).getDisplayLength()) { | |
890 | endCol = document.getLine(endRow).getDisplayLength() - 1; | |
891 | } | |
892 | if (endCol < 0) { | |
893 | endCol = 0; | |
894 | } | |
895 | if (startCol >= document.getLine(startRow).getDisplayLength()) { | |
896 | startCol = document.getLine(startRow).getDisplayLength() - 1; | |
897 | } | |
898 | if (startCol < 0) { | |
899 | startCol = 0; | |
43ee96da KL |
900 | } |
901 | ||
902 | // Place the cursor on the selection end, and "press backspace" until | |
903 | // the cursor matches the selection start. | |
8d3480c7 KL |
904 | /* |
905 | System.err.println("BEFORE: " + startRow + " " + startCol + " " + | |
906 | endRow + " " + endCol + " " + | |
907 | document.getLineNumber() + " " + document.getCursor()); | |
908 | */ | |
43ee96da KL |
909 | document.setLineNumber(endRow); |
910 | document.setCursor(endCol + 1); | |
911 | while (!((document.getLineNumber() == startRow) | |
912 | && (document.getCursor() == startCol)) | |
913 | ) { | |
8d3480c7 KL |
914 | /* |
915 | System.err.println("DURING: " + startRow + " " + startCol + " " + | |
916 | endRow + " " + endCol + " " + | |
917 | document.getLineNumber() + " " + document.getCursor()); | |
918 | */ | |
919 | ||
43ee96da KL |
920 | document.backspace(); |
921 | } | |
922 | alignTopLine(true); | |
923 | } | |
924 | ||
925 | /** | |
926 | * Copy text within the selection bounds to clipboard. | |
927 | */ | |
928 | private void copySelection() { | |
3c5921e6 | 929 | if (!inSelection) { |
43ee96da KL |
930 | return; |
931 | } | |
3c5921e6 KL |
932 | getClipboard().copyText(getSelection()); |
933 | } | |
934 | ||
935 | /** | |
936 | * Set the selection. | |
937 | * | |
938 | * @param startRow the starting row number. 0-based: row 0 is the first | |
939 | * row. | |
940 | * @param startColumn the starting column number. 0-based: column 0 is | |
941 | * the first column. | |
942 | * @param endRow the ending row number. 0-based: row 0 is the first row. | |
943 | * @param endColumn the ending column number. 0-based: column 0 is the | |
944 | * first column. | |
945 | */ | |
946 | public void setSelection(final int startRow, final int startColumn, | |
947 | final int endRow, final int endColumn) { | |
948 | ||
949 | inSelection = true; | |
950 | selectionLine0 = startRow; | |
951 | selectionColumn0 = startColumn; | |
952 | selectionLine1 = endRow; | |
953 | selectionColumn1 = endColumn; | |
954 | } | |
955 | ||
956 | /** | |
957 | * Copy text within the selection bounds to a string. | |
958 | * | |
959 | * @return the selection as a string, or null if there is no selection | |
960 | */ | |
961 | public String getSelection() { | |
962 | if (!inSelection) { | |
963 | return null; | |
964 | } | |
43ee96da KL |
965 | |
966 | int startCol = selectionColumn0; | |
967 | int startRow = selectionLine0; | |
968 | int endCol = selectionColumn1; | |
969 | int endRow = selectionLine1; | |
970 | ||
971 | if (((selectionColumn1 < selectionColumn0) | |
8d3480c7 KL |
972 | && (selectionLine1 == selectionLine0)) |
973 | || (selectionLine1 < selectionLine0) | |
43ee96da | 974 | ) { |
8d3480c7 KL |
975 | // The user selected from bottom-to-top and/or right-to-left. |
976 | // Reverse the coordinates for the inverted section. | |
43ee96da KL |
977 | startCol = selectionColumn1; |
978 | startRow = selectionLine1; | |
979 | endCol = selectionColumn0; | |
980 | endRow = selectionLine0; | |
981 | } | |
982 | ||
983 | StringBuilder sb = new StringBuilder(); | |
984 | ||
985 | if (endRow > startRow) { | |
986 | // First line | |
987 | String line = document.getLine(startRow).getRawString(); | |
988 | int x = 0; | |
989 | for (int i = 0; i < line.length(); ) { | |
990 | int ch = line.codePointAt(i); | |
991 | ||
992 | if (x >= startCol) { | |
993 | sb.append(Character.toChars(ch)); | |
994 | } | |
995 | x += StringUtils.width(ch); | |
996 | i += Character.charCount(ch); | |
997 | } | |
998 | sb.append("\n"); | |
999 | ||
1000 | // Middle lines | |
1001 | for (int y = startRow + 1; y < endRow; y++) { | |
1002 | sb.append(document.getLine(y).getRawString()); | |
1003 | sb.append("\n"); | |
1004 | } | |
1005 | ||
1006 | // Final line | |
1007 | line = document.getLine(endRow).getRawString(); | |
1008 | x = 0; | |
1009 | for (int i = 0; i < line.length(); ) { | |
1010 | int ch = line.codePointAt(i); | |
1011 | ||
1012 | if (x > endCol) { | |
1013 | break; | |
1014 | } | |
1015 | ||
1016 | sb.append(Character.toChars(ch)); | |
1017 | x += StringUtils.width(ch); | |
1018 | i += Character.charCount(ch); | |
1019 | } | |
1020 | } else { | |
1021 | assert (startRow == endRow); | |
1022 | ||
1023 | // Only one line | |
1024 | String line = document.getLine(startRow).getRawString(); | |
1025 | int x = 0; | |
1026 | for (int i = 0; i < line.length(); ) { | |
1027 | int ch = line.codePointAt(i); | |
1028 | ||
1029 | if ((x >= startCol) && (x <= endCol)) { | |
1030 | sb.append(Character.toChars(ch)); | |
1031 | } | |
1032 | ||
1033 | x += StringUtils.width(ch); | |
1034 | i += Character.charCount(ch); | |
1035 | } | |
1036 | } | |
3c5921e6 KL |
1037 | return sb.toString(); |
1038 | } | |
1039 | ||
1040 | /** | |
1041 | * Get the selection starting row number. | |
1042 | * | |
1043 | * @return the starting row number, or -1 if there is no selection. | |
1044 | * 0-based: row 0 is the first row. | |
1045 | */ | |
1046 | public int getSelectionStartRow() { | |
1047 | if (!inSelection) { | |
1048 | return -1; | |
1049 | } | |
1050 | ||
1051 | int startCol = selectionColumn0; | |
1052 | int startRow = selectionLine0; | |
1053 | int endCol = selectionColumn1; | |
1054 | int endRow = selectionLine1; | |
101bc589 | 1055 | |
3c5921e6 KL |
1056 | if (((selectionColumn1 < selectionColumn0) |
1057 | && (selectionLine1 == selectionLine0)) | |
1058 | || (selectionLine1 < selectionLine0) | |
1059 | ) { | |
1060 | // The user selected from bottom-to-top and/or right-to-left. | |
1061 | // Reverse the coordinates for the inverted section. | |
1062 | startCol = selectionColumn1; | |
1063 | startRow = selectionLine1; | |
1064 | endCol = selectionColumn0; | |
1065 | endRow = selectionLine0; | |
1066 | } | |
1067 | return startRow; | |
101bc589 KL |
1068 | } |
1069 | ||
ed76cd41 | 1070 | /** |
3c5921e6 | 1071 | * Get the selection starting column number. |
ed76cd41 | 1072 | * |
3c5921e6 KL |
1073 | * @return the starting column number, or -1 if there is no selection. |
1074 | * 0-based: column 0 is the first column. | |
ed76cd41 | 1075 | */ |
3c5921e6 KL |
1076 | public int getSelectionStartColumn() { |
1077 | if (!inSelection) { | |
1078 | return -1; | |
1079 | } | |
ed76cd41 | 1080 | |
3c5921e6 KL |
1081 | int startCol = selectionColumn0; |
1082 | int startRow = selectionLine0; | |
1083 | int endCol = selectionColumn1; | |
1084 | int endRow = selectionLine1; | |
1085 | ||
1086 | if (((selectionColumn1 < selectionColumn0) | |
1087 | && (selectionLine1 == selectionLine0)) | |
1088 | || (selectionLine1 < selectionLine0) | |
1089 | ) { | |
1090 | // The user selected from bottom-to-top and/or right-to-left. | |
1091 | // Reverse the coordinates for the inverted section. | |
1092 | startCol = selectionColumn1; | |
1093 | startRow = selectionLine1; | |
1094 | endCol = selectionColumn0; | |
1095 | endRow = selectionLine0; | |
1096 | } | |
1097 | return startCol; | |
1098 | } | |
1099 | ||
1100 | /** | |
1101 | * Get the selection ending row number. | |
1102 | * | |
1103 | * @return the ending row number, or -1 if there is no selection. | |
1104 | * 0-based: row 0 is the first row. | |
1105 | */ | |
1106 | public int getSelectionEndRow() { | |
1107 | if (!inSelection) { | |
1108 | return -1; | |
1109 | } | |
1110 | ||
1111 | int startCol = selectionColumn0; | |
1112 | int startRow = selectionLine0; | |
1113 | int endCol = selectionColumn1; | |
1114 | int endRow = selectionLine1; | |
1115 | ||
1116 | if (((selectionColumn1 < selectionColumn0) | |
1117 | && (selectionLine1 == selectionLine0)) | |
1118 | || (selectionLine1 < selectionLine0) | |
1119 | ) { | |
1120 | // The user selected from bottom-to-top and/or right-to-left. | |
1121 | // Reverse the coordinates for the inverted section. | |
1122 | startCol = selectionColumn1; | |
1123 | startRow = selectionLine1; | |
1124 | endCol = selectionColumn0; | |
1125 | endRow = selectionLine0; | |
1126 | } | |
1127 | return endRow; | |
1128 | } | |
1129 | ||
1130 | /** | |
1131 | * Get the selection ending column number. | |
1132 | * | |
1133 | * @return the ending column number, or -1 if there is no selection. | |
1134 | * 0-based: column 0 is the first column. | |
1135 | */ | |
1136 | public int getSelectionEndColumn() { | |
1137 | if (!inSelection) { | |
1138 | return -1; | |
1139 | } | |
1140 | ||
1141 | int startCol = selectionColumn0; | |
1142 | int startRow = selectionLine0; | |
1143 | int endCol = selectionColumn1; | |
1144 | int endRow = selectionLine1; | |
1145 | ||
1146 | if (((selectionColumn1 < selectionColumn0) | |
1147 | && (selectionLine1 == selectionLine0)) | |
1148 | || (selectionLine1 < selectionLine0) | |
1149 | ) { | |
1150 | // The user selected from bottom-to-top and/or right-to-left. | |
1151 | // Reverse the coordinates for the inverted section. | |
1152 | startCol = selectionColumn1; | |
1153 | startRow = selectionLine1; | |
1154 | endCol = selectionColumn0; | |
1155 | endRow = selectionLine0; | |
1156 | } | |
1157 | return endCol; | |
ed76cd41 KL |
1158 | } |
1159 | ||
1160 | /** | |
1161 | * Unset the selection. | |
1162 | */ | |
1163 | public void unsetSelection() { | |
1164 | inSelection = false; | |
1165 | } | |
1166 | ||
1167 | /** | |
1168 | * Replace whatever is being selected with new text. If not in | |
1169 | * selection, nothing is replaced. | |
1170 | * | |
1171 | * @param text the new replacement text | |
1172 | */ | |
1173 | public void replaceSelection(final String text) { | |
1174 | if (!inSelection) { | |
1175 | return; | |
1176 | } | |
1177 | ||
1178 | // Delete selected text, then paste text from clipboard. | |
1179 | deleteSelection(); | |
1180 | ||
1181 | for (int i = 0; i < text.length(); ) { | |
1182 | int ch = text.codePointAt(i); | |
1183 | onKeypress(new TKeypressEvent(false, 0, ch, false, false, | |
1184 | false)); | |
1185 | i += Character.charCount(ch); | |
1186 | } | |
1187 | } | |
1188 | ||
3c5921e6 KL |
1189 | /** |
1190 | * Check if selection is available. | |
1191 | * | |
1192 | * @return true if a selection has been made | |
1193 | */ | |
1194 | public boolean hasSelection() { | |
1195 | return inSelection; | |
1196 | } | |
1197 | ||
ed76cd41 KL |
1198 | /** |
1199 | * Get the entire contents of the editor as one string. | |
1200 | * | |
1201 | * @return the editor contents | |
1202 | */ | |
1203 | public String getText() { | |
1204 | return document.getText(); | |
1205 | } | |
1206 | ||
1207 | /** | |
1208 | * Set the entire contents of the editor from one string. | |
1209 | * | |
1210 | * @param text the new contents | |
1211 | */ | |
1212 | public void setText(final String text) { | |
1213 | document = new Document(text, defaultColor); | |
1214 | unsetSelection(); | |
1215 | topLine = 0; | |
1216 | leftColumn = 0; | |
1217 | } | |
1218 | ||
101bc589 KL |
1219 | // ------------------------------------------------------------------------ |
1220 | // EditMenuUser ----------------------------------------------------------- | |
1221 | // ------------------------------------------------------------------------ | |
1222 | ||
1223 | /** | |
1224 | * Check if the cut menu item should be enabled. | |
1225 | * | |
1226 | * @return true if the cut menu item should be enabled | |
1227 | */ | |
1228 | public boolean isEditMenuCut() { | |
1229 | return true; | |
1230 | } | |
1231 | ||
1232 | /** | |
1233 | * Check if the copy menu item should be enabled. | |
1234 | * | |
1235 | * @return true if the copy menu item should be enabled | |
1236 | */ | |
1237 | public boolean isEditMenuCopy() { | |
1238 | return true; | |
1239 | } | |
1240 | ||
1241 | /** | |
1242 | * Check if the paste menu item should be enabled. | |
1243 | * | |
1244 | * @return true if the paste menu item should be enabled | |
1245 | */ | |
1246 | public boolean isEditMenuPaste() { | |
1247 | return true; | |
1248 | } | |
1249 | ||
1250 | /** | |
1251 | * Check if the clear menu item should be enabled. | |
1252 | * | |
1253 | * @return true if the clear menu item should be enabled | |
1254 | */ | |
1255 | public boolean isEditMenuClear() { | |
1256 | return true; | |
1257 | } | |
1258 | ||
12b55d76 | 1259 | } |