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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. |
9240f032 KL |
167 | int newLine = topLine + mouse.getY(); |
168 | int newX = leftColumn + mouse.getX(); | |
169 | ||
20c416a0 | 170 | inSelection = true; |
9240f032 KL |
171 | if (newLine > document.getLineCount() - 1) { |
172 | selectionLine0 = document.getLineCount() - 1; | |
173 | } else { | |
174 | selectionLine0 = topLine + mouse.getY(); | |
175 | } | |
3c5921e6 KL |
176 | selectionColumn0 = leftColumn + mouse.getX(); |
177 | selectionColumn0 = Math.max(0, Math.min(selectionColumn0, | |
178 | document.getLine(selectionLine0).getDisplayLength() - 1)); | |
20c416a0 KL |
179 | selectionColumn1 = selectionColumn0; |
180 | selectionLine1 = selectionLine0; | |
101bc589 KL |
181 | |
182 | // Set the row and column | |
101bc589 KL |
183 | if (newLine > document.getLineCount() - 1) { |
184 | // Go to the end | |
185 | document.setLineNumber(document.getLineCount() - 1); | |
186 | document.end(); | |
187 | if (newLine > document.getLineCount() - 1) { | |
188 | setCursorY(document.getLineCount() - 1 - topLine); | |
189 | } else { | |
190 | setCursorY(mouse.getY()); | |
191 | } | |
192 | alignCursor(); | |
193 | if (inSelection) { | |
194 | selectionColumn1 = document.getCursor(); | |
195 | selectionLine1 = document.getLineNumber(); | |
101bc589 KL |
196 | } |
197 | return; | |
198 | } | |
199 | ||
200 | document.setLineNumber(newLine); | |
201 | setCursorY(mouse.getY()); | |
202 | if (newX >= document.getCurrentLine().getDisplayLength()) { | |
203 | document.end(); | |
204 | alignCursor(); | |
205 | } else { | |
206 | document.setCursor(newX); | |
207 | setCursorX(mouse.getX()); | |
208 | } | |
209 | if (inSelection) { | |
210 | selectionColumn1 = document.getCursor(); | |
211 | selectionLine1 = document.getLineNumber(); | |
101bc589 KL |
212 | } |
213 | return; | |
214 | } else { | |
215 | inSelection = false; | |
216 | } | |
217 | ||
218 | // Pass to children | |
219 | super.onMouseDown(mouse); | |
220 | } | |
221 | ||
222 | /** | |
223 | * Handle mouse motion events. | |
224 | * | |
225 | * @param mouse mouse motion event | |
226 | */ | |
227 | @Override | |
228 | public void onMouseMotion(final TMouseEvent mouse) { | |
229 | ||
230 | if (mouse.isMouse1()) { | |
8d3480c7 KL |
231 | // Set the row and column |
232 | int newLine = topLine + mouse.getY(); | |
233 | int newX = leftColumn + mouse.getX(); | |
234 | if ((newLine < 0) || (newX < 0)) { | |
235 | return; | |
236 | } | |
237 | ||
101bc589 KL |
238 | // Selection. |
239 | if (inSelection) { | |
8d3480c7 KL |
240 | selectionColumn1 = newX; |
241 | selectionLine1 = newLine; | |
20c416a0 | 242 | } else { |
101bc589 | 243 | inSelection = true; |
8d3480c7 KL |
244 | selectionColumn0 = newX; |
245 | selectionLine0 = newLine; | |
101bc589 KL |
246 | selectionColumn1 = selectionColumn0; |
247 | selectionLine1 = selectionLine0; | |
101bc589 KL |
248 | } |
249 | ||
df602ccf | 250 | if (newLine > document.getLineCount() - 1) { |
e8a11f98 KL |
251 | // Go to the end |
252 | document.setLineNumber(document.getLineCount() - 1); | |
253 | document.end(); | |
df602ccf KL |
254 | if (newLine > document.getLineCount() - 1) { |
255 | setCursorY(document.getLineCount() - 1 - topLine); | |
e8a11f98 | 256 | } else { |
df602ccf | 257 | setCursorY(mouse.getY()); |
e8a11f98 KL |
258 | } |
259 | alignCursor(); | |
101bc589 KL |
260 | if (inSelection) { |
261 | selectionColumn1 = document.getCursor(); | |
262 | selectionLine1 = document.getLineNumber(); | |
101bc589 | 263 | } |
e8a11f98 KL |
264 | return; |
265 | } | |
e8a11f98 KL |
266 | document.setLineNumber(newLine); |
267 | setCursorY(mouse.getY()); | |
4297b49b | 268 | if (newX >= document.getCurrentLine().getDisplayLength()) { |
e8a11f98 KL |
269 | document.end(); |
270 | alignCursor(); | |
271 | } else { | |
df602ccf | 272 | document.setCursor(newX); |
e8a11f98 KL |
273 | setCursorX(mouse.getX()); |
274 | } | |
101bc589 KL |
275 | if (inSelection) { |
276 | selectionColumn1 = document.getCursor(); | |
277 | selectionLine1 = document.getLineNumber(); | |
101bc589 | 278 | } |
e8a11f98 KL |
279 | return; |
280 | } | |
12b55d76 KL |
281 | |
282 | // Pass to children | |
283 | super.onMouseDown(mouse); | |
284 | } | |
285 | ||
286 | /** | |
287 | * Handle keystrokes. | |
288 | * | |
289 | * @param keypress keystroke event | |
290 | */ | |
291 | @Override | |
292 | public void onKeypress(final TKeypressEvent keypress) { | |
43ee96da | 293 | if (keypress.getKey().isShift()) { |
101bc589 KL |
294 | // Selection. |
295 | if (!inSelection) { | |
296 | inSelection = true; | |
297 | selectionColumn0 = document.getCursor(); | |
298 | selectionLine0 = document.getLineNumber(); | |
299 | selectionColumn1 = selectionColumn0; | |
300 | selectionLine1 = selectionLine0; | |
101bc589 KL |
301 | } |
302 | } else { | |
43ee96da KL |
303 | if (keypress.equals(kbLeft) |
304 | || keypress.equals(kbRight) | |
305 | || keypress.equals(kbUp) | |
306 | || keypress.equals(kbDown) | |
307 | || keypress.equals(kbPgDn) | |
308 | || keypress.equals(kbPgUp) | |
309 | || keypress.equals(kbHome) | |
310 | || keypress.equals(kbEnd) | |
311 | ) { | |
312 | // Non-shifted navigation keys disable selection. | |
313 | inSelection = false; | |
314 | } | |
4941d2d6 KL |
315 | if ((selectionColumn0 == selectionColumn1) |
316 | && (selectionLine0 == selectionLine1) | |
317 | ) { | |
318 | // The user clicked a spot and started typing. | |
319 | inSelection = false; | |
320 | } | |
101bc589 KL |
321 | } |
322 | ||
323 | if (keypress.equals(kbLeft) | |
324 | || keypress.equals(kbShiftLeft) | |
325 | ) { | |
df602ccf KL |
326 | document.left(); |
327 | alignTopLine(false); | |
101bc589 KL |
328 | } else if (keypress.equals(kbRight) |
329 | || keypress.equals(kbShiftRight) | |
330 | ) { | |
df602ccf KL |
331 | document.right(); |
332 | alignTopLine(true); | |
e23989a4 KL |
333 | } else if (keypress.equals(kbAltLeft) |
334 | || keypress.equals(kbCtrlLeft) | |
43ee96da KL |
335 | || keypress.equals(kbAltShiftLeft) |
336 | || keypress.equals(kbCtrlShiftLeft) | |
e23989a4 KL |
337 | ) { |
338 | document.backwardsWord(); | |
339 | alignTopLine(false); | |
340 | } else if (keypress.equals(kbAltRight) | |
341 | || keypress.equals(kbCtrlRight) | |
43ee96da KL |
342 | || keypress.equals(kbAltShiftRight) |
343 | || keypress.equals(kbCtrlShiftRight) | |
e23989a4 KL |
344 | ) { |
345 | document.forwardsWord(); | |
346 | alignTopLine(true); | |
101bc589 KL |
347 | } else if (keypress.equals(kbUp) |
348 | || keypress.equals(kbShiftUp) | |
349 | ) { | |
71a389c9 KL |
350 | document.up(); |
351 | alignTopLine(false); | |
101bc589 KL |
352 | } else if (keypress.equals(kbDown) |
353 | || keypress.equals(kbShiftDown) | |
354 | ) { | |
71a389c9 KL |
355 | document.down(); |
356 | alignTopLine(true); | |
43ee96da KL |
357 | } else if (keypress.equals(kbPgUp) |
358 | || keypress.equals(kbShiftPgUp) | |
359 | ) { | |
71a389c9 KL |
360 | document.up(getHeight() - 1); |
361 | alignTopLine(false); | |
43ee96da KL |
362 | } else if (keypress.equals(kbPgDn) |
363 | || keypress.equals(kbShiftPgDn) | |
364 | ) { | |
71a389c9 KL |
365 | document.down(getHeight() - 1); |
366 | alignTopLine(true); | |
43ee96da KL |
367 | } else if (keypress.equals(kbHome) |
368 | || keypress.equals(kbShiftHome) | |
369 | ) { | |
e8a11f98 KL |
370 | if (document.home()) { |
371 | leftColumn = 0; | |
372 | if (leftColumn < 0) { | |
373 | leftColumn = 0; | |
374 | } | |
375 | setCursorX(0); | |
376 | } | |
43ee96da KL |
377 | } else if (keypress.equals(kbEnd) |
378 | || keypress.equals(kbShiftEnd) | |
379 | ) { | |
e8a11f98 KL |
380 | if (document.end()) { |
381 | alignCursor(); | |
382 | } | |
43ee96da KL |
383 | } else if (keypress.equals(kbCtrlHome) |
384 | || keypress.equals(kbCtrlShiftHome) | |
385 | ) { | |
12b55d76 KL |
386 | document.setLineNumber(0); |
387 | document.home(); | |
e8a11f98 KL |
388 | topLine = 0; |
389 | leftColumn = 0; | |
390 | setCursorX(0); | |
391 | setCursorY(0); | |
43ee96da KL |
392 | } else if (keypress.equals(kbCtrlEnd) |
393 | || keypress.equals(kbCtrlShiftEnd) | |
394 | ) { | |
12b55d76 KL |
395 | document.setLineNumber(document.getLineCount() - 1); |
396 | document.end(); | |
71a389c9 | 397 | alignTopLine(false); |
12b55d76 KL |
398 | } else if (keypress.equals(kbIns)) { |
399 | document.setOverwrite(!document.getOverwrite()); | |
400 | } else if (keypress.equals(kbDel)) { | |
43ee96da KL |
401 | if (inSelection) { |
402 | deleteSelection(); | |
403 | } else { | |
404 | document.del(); | |
405 | } | |
71a389c9 | 406 | alignCursor(); |
39e86397 KL |
407 | } else if (keypress.equals(kbBackspace) |
408 | || keypress.equals(kbBackspaceDel) | |
409 | ) { | |
43ee96da KL |
410 | if (inSelection) { |
411 | deleteSelection(); | |
412 | } else { | |
413 | document.backspace(); | |
414 | } | |
df602ccf KL |
415 | alignTopLine(false); |
416 | } else if (keypress.equals(kbTab)) { | |
43ee96da | 417 | deleteSelection(); |
101bc589 | 418 | // Add spaces until we hit modulo 8. |
df602ccf KL |
419 | for (int i = document.getCursor(); (i + 1) % 8 != 0; i++) { |
420 | document.addChar(' '); | |
421 | } | |
e8a11f98 | 422 | alignCursor(); |
71a389c9 | 423 | } else if (keypress.equals(kbEnter)) { |
43ee96da | 424 | deleteSelection(); |
df602ccf KL |
425 | document.enter(); |
426 | alignTopLine(true); | |
12b55d76 KL |
427 | } else if (!keypress.getKey().isFnKey() |
428 | && !keypress.getKey().isAlt() | |
429 | && !keypress.getKey().isCtrl() | |
430 | ) { | |
431 | // Plain old keystroke, process it | |
43ee96da | 432 | deleteSelection(); |
2d3f60d8 | 433 | document.addChar(keypress.getKey().getChar()); |
71a389c9 | 434 | alignCursor(); |
12b55d76 KL |
435 | } else { |
436 | // Pass other keys (tab etc.) on to TWidget | |
437 | super.onKeypress(keypress); | |
438 | } | |
101bc589 KL |
439 | |
440 | if (inSelection) { | |
441 | selectionColumn1 = document.getCursor(); | |
442 | selectionLine1 = document.getLineNumber(); | |
101bc589 | 443 | } |
12b55d76 KL |
444 | } |
445 | ||
e8a11f98 KL |
446 | /** |
447 | * Method that subclasses can override to handle window/screen resize | |
448 | * events. | |
449 | * | |
450 | * @param resize resize event | |
451 | */ | |
452 | @Override | |
453 | public void onResize(final TResizeEvent resize) { | |
454 | // Change my width/height, and pull the cursor in as needed. | |
455 | if (resize.getType() == TResizeEvent.Type.WIDGET) { | |
456 | setWidth(resize.getWidth()); | |
457 | setHeight(resize.getHeight()); | |
458 | // See if the cursor is now outside the window, and if so move | |
459 | // things. | |
460 | if (getCursorX() >= getWidth()) { | |
461 | leftColumn += getCursorX() - (getWidth() - 1); | |
462 | setCursorX(getWidth() - 1); | |
463 | } | |
464 | if (getCursorY() >= getHeight()) { | |
465 | topLine += getCursorY() - (getHeight() - 1); | |
466 | setCursorY(getHeight() - 1); | |
467 | } | |
468 | } else { | |
469 | // Let superclass handle it | |
470 | super.onResize(resize); | |
471 | } | |
472 | } | |
473 | ||
101bc589 KL |
474 | /** |
475 | * Handle posted command events. | |
476 | * | |
477 | * @param command command event | |
478 | */ | |
479 | @Override | |
480 | public void onCommand(final TCommandEvent command) { | |
481 | if (command.equals(cmCut)) { | |
482 | // Copy text to clipboard, and then remove it. | |
43ee96da | 483 | copySelection(); |
101bc589 KL |
484 | deleteSelection(); |
485 | return; | |
486 | } | |
487 | ||
488 | if (command.equals(cmCopy)) { | |
489 | // Copy text to clipboard. | |
43ee96da | 490 | copySelection(); |
101bc589 KL |
491 | return; |
492 | } | |
493 | ||
494 | if (command.equals(cmPaste)) { | |
495 | // Delete selected text, then paste text from clipboard. | |
496 | deleteSelection(); | |
497 | ||
498 | String text = getClipboard().pasteText(); | |
499 | if (text != null) { | |
500 | for (int i = 0; i < text.length(); ) { | |
501 | int ch = text.codePointAt(i); | |
502 | onKeypress(new TKeypressEvent(false, 0, ch, false, false, | |
503 | false)); | |
504 | i += Character.charCount(ch); | |
505 | } | |
506 | } | |
507 | return; | |
508 | } | |
509 | ||
510 | if (command.equals(cmClear)) { | |
511 | // Remove text. | |
512 | deleteSelection(); | |
513 | return; | |
514 | } | |
515 | ||
516 | } | |
517 | ||
518 | // ------------------------------------------------------------------------ | |
519 | // TWidget ---------------------------------------------------------------- | |
520 | // ------------------------------------------------------------------------ | |
521 | ||
522 | /** | |
523 | * Draw the text box. | |
524 | */ | |
525 | @Override | |
526 | public void draw() { | |
43ee96da KL |
527 | CellAttributes selectedColor = getTheme().getColor("teditor.selected"); |
528 | ||
3c5921e6 KL |
529 | boolean drawSelection = true; |
530 | ||
43ee96da KL |
531 | int startCol = selectionColumn0; |
532 | int startRow = selectionLine0; | |
533 | int endCol = selectionColumn1; | |
534 | int endRow = selectionLine1; | |
535 | ||
536 | if (((selectionColumn1 < selectionColumn0) | |
8d3480c7 KL |
537 | && (selectionLine1 == selectionLine0)) |
538 | || (selectionLine1 < selectionLine0) | |
43ee96da | 539 | ) { |
8d3480c7 KL |
540 | // The user selected from bottom-to-top and/or right-to-left. |
541 | // Reverse the coordinates for the inverted section. | |
43ee96da KL |
542 | startCol = selectionColumn1; |
543 | startRow = selectionLine1; | |
544 | endCol = selectionColumn0; | |
545 | endRow = selectionLine0; | |
546 | } | |
3c5921e6 KL |
547 | if ((startCol == endCol) && (startRow == endRow)) { |
548 | drawSelection = false; | |
549 | } | |
43ee96da | 550 | |
101bc589 KL |
551 | for (int i = 0; i < getHeight(); i++) { |
552 | // Background line | |
553 | getScreen().hLineXY(0, i, getWidth(), ' ', defaultColor); | |
554 | ||
555 | // Now draw document's line | |
556 | if (topLine + i < document.getLineCount()) { | |
557 | Line line = document.getLine(topLine + i); | |
558 | int x = 0; | |
559 | for (Word word: line.getWords()) { | |
560 | // For now, we are cheating: draw outside the left region | |
561 | // if needed and let screen do the clipping. | |
562 | getScreen().putStringXY(x - leftColumn, i, word.getText(), | |
563 | word.getColor()); | |
564 | x += word.getDisplayLength(); | |
565 | if (x - leftColumn > getWidth()) { | |
566 | break; | |
567 | } | |
568 | } | |
101bc589 | 569 | |
43ee96da | 570 | // Highlight selected region |
3c5921e6 | 571 | if (inSelection && drawSelection) { |
43ee96da KL |
572 | if (startRow == endRow) { |
573 | if (topLine + i == startRow) { | |
574 | for (x = startCol; x <= endCol; x++) { | |
575 | putAttrXY(x - leftColumn, i, selectedColor); | |
576 | } | |
577 | } | |
578 | } else { | |
579 | if (topLine + i == startRow) { | |
580 | for (x = startCol; x < line.getDisplayLength(); x++) { | |
581 | putAttrXY(x - leftColumn, i, selectedColor); | |
582 | } | |
583 | } else if (topLine + i == endRow) { | |
584 | for (x = 0; x <= endCol; x++) { | |
585 | putAttrXY(x - leftColumn, i, selectedColor); | |
586 | } | |
587 | } else if ((topLine + i >= startRow) | |
588 | && (topLine + i <= endRow) | |
589 | ) { | |
590 | for (x = 0; x < getWidth(); x++) { | |
591 | putAttrXY(x, i, selectedColor); | |
592 | } | |
593 | } | |
594 | } | |
595 | } | |
596 | ||
597 | } | |
101bc589 KL |
598 | } |
599 | } | |
600 | ||
615a0d99 KL |
601 | // ------------------------------------------------------------------------ |
602 | // TEditorWidget ---------------------------------------------------------- | |
603 | // ------------------------------------------------------------------------ | |
604 | ||
605 | /** | |
606 | * Align visible area with document current line. | |
607 | * | |
608 | * @param topLineIsTop if true, make the top visible line the document | |
609 | * current line if it was off-screen. If false, make the bottom visible | |
610 | * line the document current line. | |
611 | */ | |
612 | private void alignTopLine(final boolean topLineIsTop) { | |
613 | int line = document.getLineNumber(); | |
614 | ||
615 | if ((line < topLine) || (line > topLine + getHeight() - 1)) { | |
616 | // Need to move topLine to bring document back into view. | |
617 | if (topLineIsTop) { | |
618 | topLine = line - (getHeight() - 1); | |
619 | if (topLine < 0) { | |
620 | topLine = 0; | |
621 | } | |
622 | assert (topLine >= 0); | |
623 | } else { | |
624 | topLine = line; | |
625 | assert (topLine >= 0); | |
626 | } | |
627 | } | |
628 | ||
629 | /* | |
630 | System.err.println("line " + line + " topLine " + topLine); | |
631 | */ | |
632 | ||
633 | // Document is in view, let's set cursorY | |
634 | assert (line >= topLine); | |
635 | setCursorY(line - topLine); | |
636 | alignCursor(); | |
637 | } | |
638 | ||
639 | /** | |
640 | * Align document current line with visible area. | |
641 | * | |
642 | * @param topLineIsTop if true, make the top visible line the document | |
643 | * current line if it was off-screen. If false, make the bottom visible | |
644 | * line the document current line. | |
645 | */ | |
646 | private void alignDocument(final boolean topLineIsTop) { | |
647 | int line = document.getLineNumber(); | |
648 | int cursor = document.getCursor(); | |
649 | ||
650 | if ((line < topLine) || (line > topLine + getHeight() - 1)) { | |
651 | // Need to move document to ensure it fits view. | |
652 | if (topLineIsTop) { | |
653 | document.setLineNumber(topLine); | |
654 | } else { | |
655 | document.setLineNumber(topLine + (getHeight() - 1)); | |
656 | } | |
657 | if (cursor < document.getCurrentLine().getDisplayLength()) { | |
658 | document.setCursor(cursor); | |
659 | } | |
660 | } | |
661 | ||
662 | /* | |
663 | System.err.println("getLineNumber() " + document.getLineNumber() + | |
664 | " topLine " + topLine); | |
665 | */ | |
666 | ||
667 | // Document is in view, let's set cursorY | |
668 | setCursorY(document.getLineNumber() - topLine); | |
669 | alignCursor(); | |
670 | } | |
671 | ||
672 | /** | |
673 | * Align visible cursor with document cursor. | |
674 | */ | |
675 | private void alignCursor() { | |
676 | int width = getWidth(); | |
677 | ||
678 | int desiredX = document.getCursor() - leftColumn; | |
679 | if (desiredX < 0) { | |
680 | // We need to push the screen to the left. | |
681 | leftColumn = document.getCursor(); | |
682 | } else if (desiredX > width - 1) { | |
683 | // We need to push the screen to the right. | |
684 | leftColumn = document.getCursor() - (width - 1); | |
685 | } | |
686 | ||
687 | /* | |
688 | System.err.println("document cursor " + document.getCursor() + | |
689 | " leftColumn " + leftColumn); | |
690 | */ | |
691 | ||
692 | ||
693 | setCursorX(document.getCursor() - leftColumn); | |
694 | } | |
695 | ||
71a389c9 KL |
696 | /** |
697 | * Get the number of lines in the underlying Document. | |
698 | * | |
699 | * @return the number of lines | |
700 | */ | |
701 | public int getLineCount() { | |
702 | return document.getLineCount(); | |
703 | } | |
704 | ||
b6faeac0 KL |
705 | /** |
706 | * Get the current visible top row number. 1-based. | |
707 | * | |
708 | * @return the visible top row number. Row 1 is the first row. | |
709 | */ | |
710 | public int getVisibleRowNumber() { | |
711 | return topLine + 1; | |
712 | } | |
713 | ||
714 | /** | |
715 | * Set the current visible row number. 1-based. | |
716 | * | |
717 | * @param row the new visible row number. Row 1 is the first row. | |
718 | */ | |
719 | public void setVisibleRowNumber(final int row) { | |
720 | assert (row > 0); | |
721 | if ((row > 0) && (row < document.getLineCount())) { | |
722 | topLine = row - 1; | |
723 | alignDocument(true); | |
724 | } | |
725 | } | |
726 | ||
71a389c9 KL |
727 | /** |
728 | * Get the current editing row number. 1-based. | |
729 | * | |
730 | * @return the editing row number. Row 1 is the first row. | |
731 | */ | |
732 | public int getEditingRowNumber() { | |
733 | return document.getLineNumber() + 1; | |
734 | } | |
735 | ||
736 | /** | |
737 | * Set the current editing row number. 1-based. | |
738 | * | |
739 | * @param row the new editing row number. Row 1 is the first row. | |
740 | */ | |
741 | public void setEditingRowNumber(final int row) { | |
fe0770f9 KL |
742 | assert (row > 0); |
743 | if ((row > 0) && (row < document.getLineCount())) { | |
744 | document.setLineNumber(row - 1); | |
745 | alignTopLine(true); | |
746 | } | |
71a389c9 KL |
747 | } |
748 | ||
1bc08f18 KL |
749 | /** |
750 | * Set the current visible column number. 1-based. | |
751 | * | |
752 | * @return the visible column number. Column 1 is the first column. | |
753 | */ | |
754 | public int getVisibleColumnNumber() { | |
755 | return leftColumn + 1; | |
756 | } | |
757 | ||
758 | /** | |
759 | * Set the current visible column number. 1-based. | |
760 | * | |
761 | * @param column the new visible column number. Column 1 is the first | |
762 | * column. | |
763 | */ | |
764 | public void setVisibleColumnNumber(final int column) { | |
765 | assert (column > 0); | |
766 | if ((column > 0) && (column < document.getLineLengthMax())) { | |
767 | leftColumn = column - 1; | |
768 | alignDocument(true); | |
769 | } | |
770 | } | |
771 | ||
71a389c9 KL |
772 | /** |
773 | * Get the current editing column number. 1-based. | |
774 | * | |
775 | * @return the editing column number. Column 1 is the first column. | |
776 | */ | |
777 | public int getEditingColumnNumber() { | |
778 | return document.getCursor() + 1; | |
779 | } | |
780 | ||
781 | /** | |
782 | * Set the current editing column number. 1-based. | |
783 | * | |
784 | * @param column the new editing column number. Column 1 is the first | |
785 | * column. | |
786 | */ | |
787 | public void setEditingColumnNumber(final int column) { | |
fe0770f9 KL |
788 | if ((column > 0) && (column < document.getLineLength())) { |
789 | document.setCursor(column - 1); | |
790 | alignCursor(); | |
791 | } | |
71a389c9 KL |
792 | } |
793 | ||
794 | /** | |
795 | * Get the maximum possible row number. 1-based. | |
796 | * | |
797 | * @return the maximum row number. Row 1 is the first row. | |
798 | */ | |
799 | public int getMaximumRowNumber() { | |
800 | return document.getLineCount() + 1; | |
801 | } | |
802 | ||
803 | /** | |
804 | * Get the maximum possible column number. 1-based. | |
805 | * | |
806 | * @return the maximum column number. Column 1 is the first column. | |
807 | */ | |
808 | public int getMaximumColumnNumber() { | |
809 | return document.getLineLengthMax() + 1; | |
810 | } | |
811 | ||
ed76cd41 KL |
812 | /** |
813 | * Get the current editing row plain text. 1-based. | |
814 | * | |
815 | * @param row the editing row number. Row 1 is the first row. | |
816 | * @return the plain text of the row | |
817 | */ | |
818 | public String getEditingRawLine(final int row) { | |
819 | Line line = document.getLine(row - 1); | |
820 | return line.getRawString(); | |
821 | } | |
822 | ||
71a389c9 KL |
823 | /** |
824 | * Get the dirty value. | |
825 | * | |
826 | * @return true if the buffer is dirty | |
827 | */ | |
828 | public boolean isDirty() { | |
829 | return document.isDirty(); | |
830 | } | |
831 | ||
ed76cd41 KL |
832 | /** |
833 | * Unset the dirty flag. | |
834 | */ | |
835 | public void setNotDirty() { | |
836 | document.setNotDirty(); | |
837 | } | |
838 | ||
71a389c9 KL |
839 | /** |
840 | * Save contents to file. | |
841 | * | |
842 | * @param filename file to save to | |
843 | * @throws IOException if a java.io operation throws | |
844 | */ | |
845 | public void saveToFilename(final String filename) throws IOException { | |
846 | document.saveToFilename(filename); | |
847 | } | |
848 | ||
101bc589 KL |
849 | /** |
850 | * Delete text within the selection bounds. | |
851 | */ | |
852 | private void deleteSelection() { | |
3c5921e6 | 853 | if (!inSelection) { |
101bc589 KL |
854 | return; |
855 | } | |
43ee96da KL |
856 | inSelection = false; |
857 | ||
858 | int startCol = selectionColumn0; | |
859 | int startRow = selectionLine0; | |
860 | int endCol = selectionColumn1; | |
861 | int endRow = selectionLine1; | |
862 | ||
8d3480c7 KL |
863 | /* |
864 | System.err.println("INITIAL: " + startRow + " " + startCol + " " + | |
865 | endRow + " " + endCol + " " + | |
866 | document.getLineNumber() + " " + document.getCursor()); | |
867 | */ | |
868 | ||
43ee96da | 869 | if (((selectionColumn1 < selectionColumn0) |
8d3480c7 KL |
870 | && (selectionLine1 == selectionLine0)) |
871 | || (selectionLine1 < selectionLine0) | |
43ee96da | 872 | ) { |
8d3480c7 KL |
873 | // The user selected from bottom-to-top and/or right-to-left. |
874 | // Reverse the coordinates for the inverted section. | |
43ee96da KL |
875 | startCol = selectionColumn1; |
876 | startRow = selectionLine1; | |
877 | endCol = selectionColumn0; | |
878 | endRow = selectionLine0; | |
8d3480c7 KL |
879 | |
880 | if (endRow >= document.getLineCount()) { | |
881 | // The selection started beyond EOF, trim it to EOF. | |
882 | endRow = document.getLineCount() - 1; | |
883 | endCol = document.getLine(endRow).getDisplayLength(); | |
884 | } else if (endRow == document.getLineCount() - 1) { | |
885 | // The selection started beyond EOF, trim it to EOF. | |
886 | if (endCol >= document.getLine(endRow).getDisplayLength()) { | |
887 | endCol = document.getLine(endRow).getDisplayLength() - 1; | |
888 | } | |
889 | } | |
890 | } | |
891 | /* | |
892 | System.err.println("FLIP: " + startRow + " " + startCol + " " + | |
893 | endRow + " " + endCol + " " + | |
894 | document.getLineNumber() + " " + document.getCursor()); | |
895 | System.err.println(" --END: " + endRow + " " + document.getLineCount() + | |
896 | " " + document.getLine(endRow).getDisplayLength()); | |
897 | */ | |
898 | ||
899 | assert (endRow < document.getLineCount()); | |
900 | if (endCol >= document.getLine(endRow).getDisplayLength()) { | |
901 | endCol = document.getLine(endRow).getDisplayLength() - 1; | |
902 | } | |
903 | if (endCol < 0) { | |
904 | endCol = 0; | |
905 | } | |
906 | if (startCol >= document.getLine(startRow).getDisplayLength()) { | |
907 | startCol = document.getLine(startRow).getDisplayLength() - 1; | |
908 | } | |
909 | if (startCol < 0) { | |
910 | startCol = 0; | |
43ee96da KL |
911 | } |
912 | ||
913 | // Place the cursor on the selection end, and "press backspace" until | |
914 | // the cursor matches the selection start. | |
8d3480c7 KL |
915 | /* |
916 | System.err.println("BEFORE: " + startRow + " " + startCol + " " + | |
917 | endRow + " " + endCol + " " + | |
918 | document.getLineNumber() + " " + document.getCursor()); | |
919 | */ | |
43ee96da KL |
920 | document.setLineNumber(endRow); |
921 | document.setCursor(endCol + 1); | |
922 | while (!((document.getLineNumber() == startRow) | |
923 | && (document.getCursor() == startCol)) | |
924 | ) { | |
8d3480c7 KL |
925 | /* |
926 | System.err.println("DURING: " + startRow + " " + startCol + " " + | |
927 | endRow + " " + endCol + " " + | |
928 | document.getLineNumber() + " " + document.getCursor()); | |
929 | */ | |
930 | ||
43ee96da KL |
931 | document.backspace(); |
932 | } | |
933 | alignTopLine(true); | |
934 | } | |
935 | ||
936 | /** | |
937 | * Copy text within the selection bounds to clipboard. | |
938 | */ | |
939 | private void copySelection() { | |
3c5921e6 | 940 | if (!inSelection) { |
43ee96da KL |
941 | return; |
942 | } | |
3c5921e6 KL |
943 | getClipboard().copyText(getSelection()); |
944 | } | |
945 | ||
946 | /** | |
947 | * Set the selection. | |
948 | * | |
949 | * @param startRow the starting row number. 0-based: row 0 is the first | |
950 | * row. | |
951 | * @param startColumn the starting column number. 0-based: column 0 is | |
952 | * the first column. | |
953 | * @param endRow the ending row number. 0-based: row 0 is the first row. | |
954 | * @param endColumn the ending column number. 0-based: column 0 is the | |
955 | * first column. | |
956 | */ | |
957 | public void setSelection(final int startRow, final int startColumn, | |
958 | final int endRow, final int endColumn) { | |
959 | ||
960 | inSelection = true; | |
961 | selectionLine0 = startRow; | |
962 | selectionColumn0 = startColumn; | |
963 | selectionLine1 = endRow; | |
964 | selectionColumn1 = endColumn; | |
965 | } | |
966 | ||
967 | /** | |
968 | * Copy text within the selection bounds to a string. | |
969 | * | |
970 | * @return the selection as a string, or null if there is no selection | |
971 | */ | |
972 | public String getSelection() { | |
973 | if (!inSelection) { | |
974 | return null; | |
975 | } | |
43ee96da KL |
976 | |
977 | int startCol = selectionColumn0; | |
978 | int startRow = selectionLine0; | |
979 | int endCol = selectionColumn1; | |
980 | int endRow = selectionLine1; | |
981 | ||
982 | if (((selectionColumn1 < selectionColumn0) | |
8d3480c7 KL |
983 | && (selectionLine1 == selectionLine0)) |
984 | || (selectionLine1 < selectionLine0) | |
43ee96da | 985 | ) { |
8d3480c7 KL |
986 | // The user selected from bottom-to-top and/or right-to-left. |
987 | // Reverse the coordinates for the inverted section. | |
43ee96da KL |
988 | startCol = selectionColumn1; |
989 | startRow = selectionLine1; | |
990 | endCol = selectionColumn0; | |
991 | endRow = selectionLine0; | |
992 | } | |
993 | ||
994 | StringBuilder sb = new StringBuilder(); | |
995 | ||
996 | if (endRow > startRow) { | |
997 | // First line | |
998 | String line = document.getLine(startRow).getRawString(); | |
999 | int x = 0; | |
1000 | for (int i = 0; i < line.length(); ) { | |
1001 | int ch = line.codePointAt(i); | |
1002 | ||
1003 | if (x >= startCol) { | |
1004 | sb.append(Character.toChars(ch)); | |
1005 | } | |
1006 | x += StringUtils.width(ch); | |
1007 | i += Character.charCount(ch); | |
1008 | } | |
1009 | sb.append("\n"); | |
1010 | ||
1011 | // Middle lines | |
1012 | for (int y = startRow + 1; y < endRow; y++) { | |
1013 | sb.append(document.getLine(y).getRawString()); | |
1014 | sb.append("\n"); | |
1015 | } | |
1016 | ||
1017 | // Final line | |
1018 | line = document.getLine(endRow).getRawString(); | |
1019 | x = 0; | |
1020 | for (int i = 0; i < line.length(); ) { | |
1021 | int ch = line.codePointAt(i); | |
1022 | ||
1023 | if (x > endCol) { | |
1024 | break; | |
1025 | } | |
1026 | ||
1027 | sb.append(Character.toChars(ch)); | |
1028 | x += StringUtils.width(ch); | |
1029 | i += Character.charCount(ch); | |
1030 | } | |
1031 | } else { | |
1032 | assert (startRow == endRow); | |
1033 | ||
1034 | // Only one line | |
1035 | String line = document.getLine(startRow).getRawString(); | |
1036 | int x = 0; | |
1037 | for (int i = 0; i < line.length(); ) { | |
1038 | int ch = line.codePointAt(i); | |
1039 | ||
1040 | if ((x >= startCol) && (x <= endCol)) { | |
1041 | sb.append(Character.toChars(ch)); | |
1042 | } | |
1043 | ||
1044 | x += StringUtils.width(ch); | |
1045 | i += Character.charCount(ch); | |
1046 | } | |
1047 | } | |
3c5921e6 KL |
1048 | return sb.toString(); |
1049 | } | |
1050 | ||
1051 | /** | |
1052 | * Get the selection starting row number. | |
1053 | * | |
1054 | * @return the starting row number, or -1 if there is no selection. | |
1055 | * 0-based: row 0 is the first row. | |
1056 | */ | |
1057 | public int getSelectionStartRow() { | |
1058 | if (!inSelection) { | |
1059 | return -1; | |
1060 | } | |
1061 | ||
1062 | int startCol = selectionColumn0; | |
1063 | int startRow = selectionLine0; | |
1064 | int endCol = selectionColumn1; | |
1065 | int endRow = selectionLine1; | |
101bc589 | 1066 | |
3c5921e6 KL |
1067 | if (((selectionColumn1 < selectionColumn0) |
1068 | && (selectionLine1 == selectionLine0)) | |
1069 | || (selectionLine1 < selectionLine0) | |
1070 | ) { | |
1071 | // The user selected from bottom-to-top and/or right-to-left. | |
1072 | // Reverse the coordinates for the inverted section. | |
1073 | startCol = selectionColumn1; | |
1074 | startRow = selectionLine1; | |
1075 | endCol = selectionColumn0; | |
1076 | endRow = selectionLine0; | |
1077 | } | |
1078 | return startRow; | |
101bc589 KL |
1079 | } |
1080 | ||
ed76cd41 | 1081 | /** |
3c5921e6 | 1082 | * Get the selection starting column number. |
ed76cd41 | 1083 | * |
3c5921e6 KL |
1084 | * @return the starting column number, or -1 if there is no selection. |
1085 | * 0-based: column 0 is the first column. | |
ed76cd41 | 1086 | */ |
3c5921e6 KL |
1087 | public int getSelectionStartColumn() { |
1088 | if (!inSelection) { | |
1089 | return -1; | |
1090 | } | |
ed76cd41 | 1091 | |
3c5921e6 KL |
1092 | int startCol = selectionColumn0; |
1093 | int startRow = selectionLine0; | |
1094 | int endCol = selectionColumn1; | |
1095 | int endRow = selectionLine1; | |
1096 | ||
1097 | if (((selectionColumn1 < selectionColumn0) | |
1098 | && (selectionLine1 == selectionLine0)) | |
1099 | || (selectionLine1 < selectionLine0) | |
1100 | ) { | |
1101 | // The user selected from bottom-to-top and/or right-to-left. | |
1102 | // Reverse the coordinates for the inverted section. | |
1103 | startCol = selectionColumn1; | |
1104 | startRow = selectionLine1; | |
1105 | endCol = selectionColumn0; | |
1106 | endRow = selectionLine0; | |
1107 | } | |
1108 | return startCol; | |
1109 | } | |
1110 | ||
1111 | /** | |
1112 | * Get the selection ending row number. | |
1113 | * | |
1114 | * @return the ending row number, or -1 if there is no selection. | |
1115 | * 0-based: row 0 is the first row. | |
1116 | */ | |
1117 | public int getSelectionEndRow() { | |
1118 | if (!inSelection) { | |
1119 | return -1; | |
1120 | } | |
1121 | ||
1122 | int startCol = selectionColumn0; | |
1123 | int startRow = selectionLine0; | |
1124 | int endCol = selectionColumn1; | |
1125 | int endRow = selectionLine1; | |
1126 | ||
1127 | if (((selectionColumn1 < selectionColumn0) | |
1128 | && (selectionLine1 == selectionLine0)) | |
1129 | || (selectionLine1 < selectionLine0) | |
1130 | ) { | |
1131 | // The user selected from bottom-to-top and/or right-to-left. | |
1132 | // Reverse the coordinates for the inverted section. | |
1133 | startCol = selectionColumn1; | |
1134 | startRow = selectionLine1; | |
1135 | endCol = selectionColumn0; | |
1136 | endRow = selectionLine0; | |
1137 | } | |
1138 | return endRow; | |
1139 | } | |
1140 | ||
1141 | /** | |
1142 | * Get the selection ending column number. | |
1143 | * | |
1144 | * @return the ending column number, or -1 if there is no selection. | |
1145 | * 0-based: column 0 is the first column. | |
1146 | */ | |
1147 | public int getSelectionEndColumn() { | |
1148 | if (!inSelection) { | |
1149 | return -1; | |
1150 | } | |
1151 | ||
1152 | int startCol = selectionColumn0; | |
1153 | int startRow = selectionLine0; | |
1154 | int endCol = selectionColumn1; | |
1155 | int endRow = selectionLine1; | |
1156 | ||
1157 | if (((selectionColumn1 < selectionColumn0) | |
1158 | && (selectionLine1 == selectionLine0)) | |
1159 | || (selectionLine1 < selectionLine0) | |
1160 | ) { | |
1161 | // The user selected from bottom-to-top and/or right-to-left. | |
1162 | // Reverse the coordinates for the inverted section. | |
1163 | startCol = selectionColumn1; | |
1164 | startRow = selectionLine1; | |
1165 | endCol = selectionColumn0; | |
1166 | endRow = selectionLine0; | |
1167 | } | |
1168 | return endCol; | |
ed76cd41 KL |
1169 | } |
1170 | ||
1171 | /** | |
1172 | * Unset the selection. | |
1173 | */ | |
1174 | public void unsetSelection() { | |
1175 | inSelection = false; | |
1176 | } | |
1177 | ||
1178 | /** | |
1179 | * Replace whatever is being selected with new text. If not in | |
1180 | * selection, nothing is replaced. | |
1181 | * | |
1182 | * @param text the new replacement text | |
1183 | */ | |
1184 | public void replaceSelection(final String text) { | |
1185 | if (!inSelection) { | |
1186 | return; | |
1187 | } | |
1188 | ||
1189 | // Delete selected text, then paste text from clipboard. | |
1190 | deleteSelection(); | |
1191 | ||
1192 | for (int i = 0; i < text.length(); ) { | |
1193 | int ch = text.codePointAt(i); | |
1194 | onKeypress(new TKeypressEvent(false, 0, ch, false, false, | |
1195 | false)); | |
1196 | i += Character.charCount(ch); | |
1197 | } | |
1198 | } | |
1199 | ||
3c5921e6 KL |
1200 | /** |
1201 | * Check if selection is available. | |
1202 | * | |
1203 | * @return true if a selection has been made | |
1204 | */ | |
1205 | public boolean hasSelection() { | |
1206 | return inSelection; | |
1207 | } | |
1208 | ||
ed76cd41 KL |
1209 | /** |
1210 | * Get the entire contents of the editor as one string. | |
1211 | * | |
1212 | * @return the editor contents | |
1213 | */ | |
1214 | public String getText() { | |
1215 | return document.getText(); | |
1216 | } | |
1217 | ||
1218 | /** | |
1219 | * Set the entire contents of the editor from one string. | |
1220 | * | |
1221 | * @param text the new contents | |
1222 | */ | |
1223 | public void setText(final String text) { | |
1224 | document = new Document(text, defaultColor); | |
1225 | unsetSelection(); | |
1226 | topLine = 0; | |
1227 | leftColumn = 0; | |
1228 | } | |
1229 | ||
101bc589 KL |
1230 | // ------------------------------------------------------------------------ |
1231 | // EditMenuUser ----------------------------------------------------------- | |
1232 | // ------------------------------------------------------------------------ | |
1233 | ||
1234 | /** | |
1235 | * Check if the cut menu item should be enabled. | |
1236 | * | |
1237 | * @return true if the cut menu item should be enabled | |
1238 | */ | |
1239 | public boolean isEditMenuCut() { | |
1240 | return true; | |
1241 | } | |
1242 | ||
1243 | /** | |
1244 | * Check if the copy menu item should be enabled. | |
1245 | * | |
1246 | * @return true if the copy menu item should be enabled | |
1247 | */ | |
1248 | public boolean isEditMenuCopy() { | |
1249 | return true; | |
1250 | } | |
1251 | ||
1252 | /** | |
1253 | * Check if the paste menu item should be enabled. | |
1254 | * | |
1255 | * @return true if the paste menu item should be enabled | |
1256 | */ | |
1257 | public boolean isEditMenuPaste() { | |
1258 | return true; | |
1259 | } | |
1260 | ||
1261 | /** | |
1262 | * Check if the clear menu item should be enabled. | |
1263 | * | |
1264 | * @return true if the clear menu item should be enabled | |
1265 | */ | |
1266 | public boolean isEditMenuClear() { | |
1267 | return true; | |
1268 | } | |
1269 | ||
12b55d76 | 1270 | } |