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Commit | Line | Data |
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0a9064fb MY |
1 | /* |
2 | * util.c | |
3 | * | |
4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) | |
5 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) | |
6 | * | |
5b8031cc | 7 | * SPDX-License-Identifier: GPL-2.0+ |
0a9064fb MY |
8 | */ |
9 | ||
10 | #include <stdarg.h> | |
11 | ||
12 | #include "dialog.h" | |
13 | ||
14 | /* Needed in signal handler in mconf.c */ | |
15 | int saved_x, saved_y; | |
16 | ||
17 | struct dialog_info dlg; | |
18 | ||
19 | static void set_mono_theme(void) | |
20 | { | |
21 | dlg.screen.atr = A_NORMAL; | |
22 | dlg.shadow.atr = A_NORMAL; | |
23 | dlg.dialog.atr = A_NORMAL; | |
24 | dlg.title.atr = A_BOLD; | |
25 | dlg.border.atr = A_NORMAL; | |
26 | dlg.button_active.atr = A_REVERSE; | |
27 | dlg.button_inactive.atr = A_DIM; | |
28 | dlg.button_key_active.atr = A_REVERSE; | |
29 | dlg.button_key_inactive.atr = A_BOLD; | |
30 | dlg.button_label_active.atr = A_REVERSE; | |
31 | dlg.button_label_inactive.atr = A_NORMAL; | |
32 | dlg.inputbox.atr = A_NORMAL; | |
33 | dlg.inputbox_border.atr = A_NORMAL; | |
34 | dlg.searchbox.atr = A_NORMAL; | |
35 | dlg.searchbox_title.atr = A_BOLD; | |
36 | dlg.searchbox_border.atr = A_NORMAL; | |
37 | dlg.position_indicator.atr = A_BOLD; | |
38 | dlg.menubox.atr = A_NORMAL; | |
39 | dlg.menubox_border.atr = A_NORMAL; | |
40 | dlg.item.atr = A_NORMAL; | |
41 | dlg.item_selected.atr = A_REVERSE; | |
42 | dlg.tag.atr = A_BOLD; | |
43 | dlg.tag_selected.atr = A_REVERSE; | |
44 | dlg.tag_key.atr = A_BOLD; | |
45 | dlg.tag_key_selected.atr = A_REVERSE; | |
46 | dlg.check.atr = A_BOLD; | |
47 | dlg.check_selected.atr = A_REVERSE; | |
48 | dlg.uarrow.atr = A_BOLD; | |
49 | dlg.darrow.atr = A_BOLD; | |
50 | } | |
51 | ||
52 | #define DLG_COLOR(dialog, f, b, h) \ | |
53 | do { \ | |
54 | dlg.dialog.fg = (f); \ | |
55 | dlg.dialog.bg = (b); \ | |
56 | dlg.dialog.hl = (h); \ | |
57 | } while (0) | |
58 | ||
59 | static void set_classic_theme(void) | |
60 | { | |
61 | DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true); | |
62 | DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true); | |
63 | DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false); | |
64 | DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true); | |
65 | DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true); | |
66 | DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true); | |
67 | DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false); | |
68 | DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true); | |
69 | DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false); | |
70 | DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true); | |
71 | DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true); | |
72 | DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false); | |
73 | DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false); | |
74 | DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false); | |
75 | DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true); | |
76 | DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true); | |
77 | DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true); | |
78 | DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false); | |
79 | DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true); | |
80 | DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false); | |
81 | DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true); | |
82 | DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true); | |
83 | DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true); | |
84 | DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true); | |
85 | DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true); | |
86 | DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false); | |
87 | DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true); | |
88 | DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true); | |
89 | DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true); | |
90 | } | |
91 | ||
92 | static void set_blackbg_theme(void) | |
93 | { | |
94 | DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true); | |
95 | DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false); | |
96 | DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false); | |
97 | DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false); | |
98 | DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true); | |
99 | ||
100 | DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false); | |
101 | DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false); | |
102 | DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true); | |
103 | DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false); | |
104 | DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false); | |
105 | DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true); | |
106 | ||
107 | DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false); | |
108 | DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false); | |
109 | ||
110 | DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false); | |
111 | DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true); | |
112 | DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true); | |
113 | ||
114 | DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false); | |
115 | ||
116 | DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false); | |
117 | DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true); | |
118 | ||
119 | DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false); | |
120 | DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false); | |
121 | ||
122 | DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false); | |
123 | DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true); | |
124 | DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false); | |
125 | DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true); | |
126 | ||
127 | DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false); | |
128 | DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true); | |
129 | ||
130 | DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false); | |
131 | DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false); | |
132 | } | |
133 | ||
134 | static void set_bluetitle_theme(void) | |
135 | { | |
136 | set_classic_theme(); | |
137 | DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true); | |
138 | DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true); | |
139 | DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true); | |
140 | DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true); | |
141 | DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true); | |
142 | DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true); | |
143 | DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true); | |
144 | ||
145 | } | |
146 | ||
147 | /* | |
148 | * Select color theme | |
149 | */ | |
150 | static int set_theme(const char *theme) | |
151 | { | |
152 | int use_color = 1; | |
153 | if (!theme) | |
154 | set_bluetitle_theme(); | |
155 | else if (strcmp(theme, "classic") == 0) | |
156 | set_classic_theme(); | |
157 | else if (strcmp(theme, "bluetitle") == 0) | |
158 | set_bluetitle_theme(); | |
159 | else if (strcmp(theme, "blackbg") == 0) | |
160 | set_blackbg_theme(); | |
161 | else if (strcmp(theme, "mono") == 0) | |
162 | use_color = 0; | |
163 | ||
164 | return use_color; | |
165 | } | |
166 | ||
167 | static void init_one_color(struct dialog_color *color) | |
168 | { | |
169 | static int pair = 0; | |
170 | ||
171 | pair++; | |
172 | init_pair(pair, color->fg, color->bg); | |
173 | if (color->hl) | |
174 | color->atr = A_BOLD | COLOR_PAIR(pair); | |
175 | else | |
176 | color->atr = COLOR_PAIR(pair); | |
177 | } | |
178 | ||
179 | static void init_dialog_colors(void) | |
180 | { | |
181 | init_one_color(&dlg.screen); | |
182 | init_one_color(&dlg.shadow); | |
183 | init_one_color(&dlg.dialog); | |
184 | init_one_color(&dlg.title); | |
185 | init_one_color(&dlg.border); | |
186 | init_one_color(&dlg.button_active); | |
187 | init_one_color(&dlg.button_inactive); | |
188 | init_one_color(&dlg.button_key_active); | |
189 | init_one_color(&dlg.button_key_inactive); | |
190 | init_one_color(&dlg.button_label_active); | |
191 | init_one_color(&dlg.button_label_inactive); | |
192 | init_one_color(&dlg.inputbox); | |
193 | init_one_color(&dlg.inputbox_border); | |
194 | init_one_color(&dlg.searchbox); | |
195 | init_one_color(&dlg.searchbox_title); | |
196 | init_one_color(&dlg.searchbox_border); | |
197 | init_one_color(&dlg.position_indicator); | |
198 | init_one_color(&dlg.menubox); | |
199 | init_one_color(&dlg.menubox_border); | |
200 | init_one_color(&dlg.item); | |
201 | init_one_color(&dlg.item_selected); | |
202 | init_one_color(&dlg.tag); | |
203 | init_one_color(&dlg.tag_selected); | |
204 | init_one_color(&dlg.tag_key); | |
205 | init_one_color(&dlg.tag_key_selected); | |
206 | init_one_color(&dlg.check); | |
207 | init_one_color(&dlg.check_selected); | |
208 | init_one_color(&dlg.uarrow); | |
209 | init_one_color(&dlg.darrow); | |
210 | } | |
211 | ||
212 | /* | |
213 | * Setup for color display | |
214 | */ | |
215 | static void color_setup(const char *theme) | |
216 | { | |
217 | int use_color; | |
218 | ||
219 | use_color = set_theme(theme); | |
220 | if (use_color && has_colors()) { | |
221 | start_color(); | |
222 | init_dialog_colors(); | |
223 | } else | |
224 | set_mono_theme(); | |
225 | } | |
226 | ||
227 | /* | |
228 | * Set window to attribute 'attr' | |
229 | */ | |
230 | void attr_clear(WINDOW * win, int height, int width, chtype attr) | |
231 | { | |
232 | int i, j; | |
233 | ||
234 | wattrset(win, attr); | |
235 | for (i = 0; i < height; i++) { | |
236 | wmove(win, i, 0); | |
237 | for (j = 0; j < width; j++) | |
238 | waddch(win, ' '); | |
239 | } | |
240 | touchwin(win); | |
241 | } | |
242 | ||
243 | void dialog_clear(void) | |
244 | { | |
245 | int lines, columns; | |
246 | ||
247 | lines = getmaxy(stdscr); | |
248 | columns = getmaxx(stdscr); | |
249 | ||
250 | attr_clear(stdscr, lines, columns, dlg.screen.atr); | |
251 | /* Display background title if it exists ... - SLH */ | |
252 | if (dlg.backtitle != NULL) { | |
253 | int i, len = 0, skip = 0; | |
254 | struct subtitle_list *pos; | |
255 | ||
256 | wattrset(stdscr, dlg.screen.atr); | |
257 | mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle); | |
258 | ||
259 | for (pos = dlg.subtitles; pos != NULL; pos = pos->next) { | |
260 | /* 3 is for the arrow and spaces */ | |
261 | len += strlen(pos->text) + 3; | |
262 | } | |
263 | ||
264 | wmove(stdscr, 1, 1); | |
265 | if (len > columns - 2) { | |
266 | const char *ellipsis = "[...] "; | |
267 | waddstr(stdscr, ellipsis); | |
268 | skip = len - (columns - 2 - strlen(ellipsis)); | |
269 | } | |
270 | ||
271 | for (pos = dlg.subtitles; pos != NULL; pos = pos->next) { | |
272 | if (skip == 0) | |
273 | waddch(stdscr, ACS_RARROW); | |
274 | else | |
275 | skip--; | |
276 | ||
277 | if (skip == 0) | |
278 | waddch(stdscr, ' '); | |
279 | else | |
280 | skip--; | |
281 | ||
282 | if (skip < strlen(pos->text)) { | |
283 | waddstr(stdscr, pos->text + skip); | |
284 | skip = 0; | |
285 | } else | |
286 | skip -= strlen(pos->text); | |
287 | ||
288 | if (skip == 0) | |
289 | waddch(stdscr, ' '); | |
290 | else | |
291 | skip--; | |
292 | } | |
293 | ||
294 | for (i = len + 1; i < columns - 1; i++) | |
295 | waddch(stdscr, ACS_HLINE); | |
296 | } | |
297 | wnoutrefresh(stdscr); | |
298 | } | |
299 | ||
300 | /* | |
301 | * Do some initialization for dialog | |
302 | */ | |
303 | int init_dialog(const char *backtitle) | |
304 | { | |
305 | int height, width; | |
306 | ||
307 | initscr(); /* Init curses */ | |
308 | ||
309 | /* Get current cursor position for signal handler in mconf.c */ | |
310 | getyx(stdscr, saved_y, saved_x); | |
311 | ||
312 | getmaxyx(stdscr, height, width); | |
313 | if (height < WINDOW_HEIGTH_MIN || width < WINDOW_WIDTH_MIN) { | |
314 | endwin(); | |
315 | return -ERRDISPLAYTOOSMALL; | |
316 | } | |
317 | ||
318 | dlg.backtitle = backtitle; | |
319 | color_setup(getenv("MENUCONFIG_COLOR")); | |
320 | ||
321 | keypad(stdscr, TRUE); | |
322 | cbreak(); | |
323 | noecho(); | |
324 | dialog_clear(); | |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
329 | void set_dialog_backtitle(const char *backtitle) | |
330 | { | |
331 | dlg.backtitle = backtitle; | |
332 | } | |
333 | ||
334 | void set_dialog_subtitles(struct subtitle_list *subtitles) | |
335 | { | |
336 | dlg.subtitles = subtitles; | |
337 | } | |
338 | ||
339 | /* | |
340 | * End using dialog functions. | |
341 | */ | |
342 | void end_dialog(int x, int y) | |
343 | { | |
344 | /* move cursor back to original position */ | |
345 | move(y, x); | |
346 | refresh(); | |
347 | endwin(); | |
348 | } | |
349 | ||
350 | /* Print the title of the dialog. Center the title and truncate | |
351 | * tile if wider than dialog (- 2 chars). | |
352 | **/ | |
353 | void print_title(WINDOW *dialog, const char *title, int width) | |
354 | { | |
355 | if (title) { | |
356 | int tlen = MIN(width - 2, strlen(title)); | |
357 | wattrset(dialog, dlg.title.atr); | |
358 | mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' '); | |
359 | mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen); | |
360 | waddch(dialog, ' '); | |
361 | } | |
362 | } | |
363 | ||
364 | /* | |
365 | * Print a string of text in a window, automatically wrap around to the | |
366 | * next line if the string is too long to fit on one line. Newline | |
367 | * characters '\n' are propperly processed. We start on a new line | |
368 | * if there is no room for at least 4 nonblanks following a double-space. | |
369 | */ | |
370 | void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x) | |
371 | { | |
372 | int newl, cur_x, cur_y; | |
373 | int prompt_len, room, wlen; | |
374 | char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0; | |
375 | ||
376 | strcpy(tempstr, prompt); | |
377 | ||
378 | prompt_len = strlen(tempstr); | |
379 | ||
380 | if (prompt_len <= width - x * 2) { /* If prompt is short */ | |
381 | wmove(win, y, (width - prompt_len) / 2); | |
382 | waddstr(win, tempstr); | |
383 | } else { | |
384 | cur_x = x; | |
385 | cur_y = y; | |
386 | newl = 1; | |
387 | word = tempstr; | |
388 | while (word && *word) { | |
389 | sp = strpbrk(word, "\n "); | |
390 | if (sp && *sp == '\n') | |
391 | newline_separator = sp; | |
392 | ||
393 | if (sp) | |
394 | *sp++ = 0; | |
395 | ||
396 | /* Wrap to next line if either the word does not fit, | |
397 | or it is the first word of a new sentence, and it is | |
398 | short, and the next word does not fit. */ | |
399 | room = width - cur_x; | |
400 | wlen = strlen(word); | |
401 | if (wlen > room || | |
402 | (newl && wlen < 4 && sp | |
403 | && wlen + 1 + strlen(sp) > room | |
404 | && (!(sp2 = strpbrk(sp, "\n ")) | |
405 | || wlen + 1 + (sp2 - sp) > room))) { | |
406 | cur_y++; | |
407 | cur_x = x; | |
408 | } | |
409 | wmove(win, cur_y, cur_x); | |
410 | waddstr(win, word); | |
411 | getyx(win, cur_y, cur_x); | |
412 | ||
413 | /* Move to the next line if the word separator was a newline */ | |
414 | if (newline_separator) { | |
415 | cur_y++; | |
416 | cur_x = x; | |
417 | newline_separator = 0; | |
418 | } else | |
419 | cur_x++; | |
420 | ||
421 | if (sp && *sp == ' ') { | |
422 | cur_x++; /* double space */ | |
423 | while (*++sp == ' ') ; | |
424 | newl = 1; | |
425 | } else | |
426 | newl = 0; | |
427 | word = sp; | |
428 | } | |
429 | } | |
430 | } | |
431 | ||
432 | /* | |
433 | * Print a button | |
434 | */ | |
435 | void print_button(WINDOW * win, const char *label, int y, int x, int selected) | |
436 | { | |
437 | int i, temp; | |
438 | ||
439 | wmove(win, y, x); | |
440 | wattrset(win, selected ? dlg.button_active.atr | |
441 | : dlg.button_inactive.atr); | |
442 | waddstr(win, "<"); | |
443 | temp = strspn(label, " "); | |
444 | label += temp; | |
445 | wattrset(win, selected ? dlg.button_label_active.atr | |
446 | : dlg.button_label_inactive.atr); | |
447 | for (i = 0; i < temp; i++) | |
448 | waddch(win, ' '); | |
449 | wattrset(win, selected ? dlg.button_key_active.atr | |
450 | : dlg.button_key_inactive.atr); | |
451 | waddch(win, label[0]); | |
452 | wattrset(win, selected ? dlg.button_label_active.atr | |
453 | : dlg.button_label_inactive.atr); | |
454 | waddstr(win, (char *)label + 1); | |
455 | wattrset(win, selected ? dlg.button_active.atr | |
456 | : dlg.button_inactive.atr); | |
457 | waddstr(win, ">"); | |
458 | wmove(win, y, x + temp + 1); | |
459 | } | |
460 | ||
461 | /* | |
462 | * Draw a rectangular box with line drawing characters | |
463 | */ | |
464 | void | |
465 | draw_box(WINDOW * win, int y, int x, int height, int width, | |
466 | chtype box, chtype border) | |
467 | { | |
468 | int i, j; | |
469 | ||
470 | wattrset(win, 0); | |
471 | for (i = 0; i < height; i++) { | |
472 | wmove(win, y + i, x); | |
473 | for (j = 0; j < width; j++) | |
474 | if (!i && !j) | |
475 | waddch(win, border | ACS_ULCORNER); | |
476 | else if (i == height - 1 && !j) | |
477 | waddch(win, border | ACS_LLCORNER); | |
478 | else if (!i && j == width - 1) | |
479 | waddch(win, box | ACS_URCORNER); | |
480 | else if (i == height - 1 && j == width - 1) | |
481 | waddch(win, box | ACS_LRCORNER); | |
482 | else if (!i) | |
483 | waddch(win, border | ACS_HLINE); | |
484 | else if (i == height - 1) | |
485 | waddch(win, box | ACS_HLINE); | |
486 | else if (!j) | |
487 | waddch(win, border | ACS_VLINE); | |
488 | else if (j == width - 1) | |
489 | waddch(win, box | ACS_VLINE); | |
490 | else | |
491 | waddch(win, box | ' '); | |
492 | } | |
493 | } | |
494 | ||
495 | /* | |
496 | * Draw shadows along the right and bottom edge to give a more 3D look | |
497 | * to the boxes | |
498 | */ | |
499 | void draw_shadow(WINDOW * win, int y, int x, int height, int width) | |
500 | { | |
501 | int i; | |
502 | ||
503 | if (has_colors()) { /* Whether terminal supports color? */ | |
504 | wattrset(win, dlg.shadow.atr); | |
505 | wmove(win, y + height, x + 2); | |
506 | for (i = 0; i < width; i++) | |
507 | waddch(win, winch(win) & A_CHARTEXT); | |
508 | for (i = y + 1; i < y + height + 1; i++) { | |
509 | wmove(win, i, x + width); | |
510 | waddch(win, winch(win) & A_CHARTEXT); | |
511 | waddch(win, winch(win) & A_CHARTEXT); | |
512 | } | |
513 | wnoutrefresh(win); | |
514 | } | |
515 | } | |
516 | ||
517 | /* | |
518 | * Return the position of the first alphabetic character in a string. | |
519 | */ | |
520 | int first_alpha(const char *string, const char *exempt) | |
521 | { | |
522 | int i, in_paren = 0, c; | |
523 | ||
524 | for (i = 0; i < strlen(string); i++) { | |
525 | c = tolower(string[i]); | |
526 | ||
527 | if (strchr("<[(", c)) | |
528 | ++in_paren; | |
529 | if (strchr(">])", c) && in_paren > 0) | |
530 | --in_paren; | |
531 | ||
532 | if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0) | |
533 | return i; | |
534 | } | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
539 | /* | |
540 | * ncurses uses ESC to detect escaped char sequences. This resutl in | |
541 | * a small timeout before ESC is actually delivered to the application. | |
542 | * lxdialog suggest <ESC> <ESC> which is correctly translated to two | |
543 | * times esc. But then we need to ignore the second esc to avoid stepping | |
544 | * out one menu too much. Filter away all escaped key sequences since | |
545 | * keypad(FALSE) turn off ncurses support for escape sequences - and thats | |
546 | * needed to make notimeout() do as expected. | |
547 | */ | |
548 | int on_key_esc(WINDOW *win) | |
549 | { | |
550 | int key; | |
551 | int key2; | |
552 | int key3; | |
553 | ||
554 | nodelay(win, TRUE); | |
555 | keypad(win, FALSE); | |
556 | key = wgetch(win); | |
557 | key2 = wgetch(win); | |
558 | do { | |
559 | key3 = wgetch(win); | |
560 | } while (key3 != ERR); | |
561 | nodelay(win, FALSE); | |
562 | keypad(win, TRUE); | |
563 | if (key == KEY_ESC && key2 == ERR) | |
564 | return KEY_ESC; | |
565 | else if (key != ERR && key != KEY_ESC && key2 == ERR) | |
566 | ungetch(key); | |
567 | ||
568 | return -1; | |
569 | } | |
570 | ||
571 | /* redraw screen in new size */ | |
572 | int on_key_resize(void) | |
573 | { | |
574 | dialog_clear(); | |
575 | return KEY_RESIZE; | |
576 | } | |
577 | ||
578 | struct dialog_list *item_cur; | |
579 | struct dialog_list item_nil; | |
580 | struct dialog_list *item_head; | |
581 | ||
582 | void item_reset(void) | |
583 | { | |
584 | struct dialog_list *p, *next; | |
585 | ||
586 | for (p = item_head; p; p = next) { | |
587 | next = p->next; | |
588 | free(p); | |
589 | } | |
590 | item_head = NULL; | |
591 | item_cur = &item_nil; | |
592 | } | |
593 | ||
594 | void item_make(const char *fmt, ...) | |
595 | { | |
596 | va_list ap; | |
597 | struct dialog_list *p = malloc(sizeof(*p)); | |
598 | ||
599 | if (item_head) | |
600 | item_cur->next = p; | |
601 | else | |
602 | item_head = p; | |
603 | item_cur = p; | |
604 | memset(p, 0, sizeof(*p)); | |
605 | ||
606 | va_start(ap, fmt); | |
607 | vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap); | |
608 | va_end(ap); | |
609 | } | |
610 | ||
611 | void item_add_str(const char *fmt, ...) | |
612 | { | |
613 | va_list ap; | |
614 | size_t avail; | |
615 | ||
616 | avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str); | |
617 | ||
618 | va_start(ap, fmt); | |
619 | vsnprintf(item_cur->node.str + strlen(item_cur->node.str), | |
620 | avail, fmt, ap); | |
621 | item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0'; | |
622 | va_end(ap); | |
623 | } | |
624 | ||
625 | void item_set_tag(char tag) | |
626 | { | |
627 | item_cur->node.tag = tag; | |
628 | } | |
629 | void item_set_data(void *ptr) | |
630 | { | |
631 | item_cur->node.data = ptr; | |
632 | } | |
633 | ||
634 | void item_set_selected(int val) | |
635 | { | |
636 | item_cur->node.selected = val; | |
637 | } | |
638 | ||
639 | int item_activate_selected(void) | |
640 | { | |
641 | item_foreach() | |
642 | if (item_is_selected()) | |
643 | return 1; | |
644 | return 0; | |
645 | } | |
646 | ||
647 | void *item_data(void) | |
648 | { | |
649 | return item_cur->node.data; | |
650 | } | |
651 | ||
652 | char item_tag(void) | |
653 | { | |
654 | return item_cur->node.tag; | |
655 | } | |
656 | ||
657 | int item_count(void) | |
658 | { | |
659 | int n = 0; | |
660 | struct dialog_list *p; | |
661 | ||
662 | for (p = item_head; p; p = p->next) | |
663 | n++; | |
664 | return n; | |
665 | } | |
666 | ||
667 | void item_set(int n) | |
668 | { | |
669 | int i = 0; | |
670 | item_foreach() | |
671 | if (i++ == n) | |
672 | return; | |
673 | } | |
674 | ||
675 | int item_n(void) | |
676 | { | |
677 | int n = 0; | |
678 | struct dialog_list *p; | |
679 | ||
680 | for (p = item_head; p; p = p->next) { | |
681 | if (p == item_cur) | |
682 | return n; | |
683 | n++; | |
684 | } | |
685 | return 0; | |
686 | } | |
687 | ||
688 | const char *item_str(void) | |
689 | { | |
690 | return item_cur->node.str; | |
691 | } | |
692 | ||
693 | int item_is_selected(void) | |
694 | { | |
695 | return (item_cur->node.selected != 0); | |
696 | } | |
697 | ||
698 | int item_is_tag(char tag) | |
699 | { | |
700 | return (item_cur->node.tag == tag); | |
701 | } |