1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* |
3 | * util.c |
4 | * |
5 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
6 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
7 | */ |
8 | |
9 | #include <stdarg.h> |
10 | |
11 | #include "dialog.h" |
12 | |
13 | /* Needed in signal handler in mconf.c */ |
14 | int saved_x, saved_y; |
15 | |
16 | struct dialog_info dlg; |
17 | |
18 | static void set_mono_theme(void) |
19 | { |
20 | dlg.screen.atr = A_NORMAL; |
21 | dlg.shadow.atr = A_NORMAL; |
22 | dlg.dialog.atr = A_NORMAL; |
23 | dlg.title.atr = A_BOLD; |
24 | dlg.border.atr = A_NORMAL; |
25 | dlg.button_active.atr = A_REVERSE; |
26 | dlg.button_inactive.atr = A_DIM; |
27 | dlg.button_key_active.atr = A_REVERSE; |
28 | dlg.button_key_inactive.atr = A_BOLD; |
29 | dlg.button_label_active.atr = A_REVERSE; |
30 | dlg.button_label_inactive.atr = A_NORMAL; |
31 | dlg.inputbox.atr = A_NORMAL; |
32 | dlg.position_indicator.atr = A_BOLD; |
33 | dlg.menubox.atr = A_NORMAL; |
34 | dlg.menubox_border.atr = A_NORMAL; |
35 | dlg.item.atr = A_NORMAL; |
36 | dlg.item_selected.atr = A_REVERSE; |
37 | dlg.tag.atr = A_BOLD; |
38 | dlg.tag_selected.atr = A_REVERSE; |
39 | dlg.tag_key.atr = A_BOLD; |
40 | dlg.tag_key_selected.atr = A_REVERSE; |
41 | dlg.check.atr = A_BOLD; |
42 | dlg.check_selected.atr = A_REVERSE; |
43 | dlg.uarrow.atr = A_BOLD; |
44 | dlg.darrow.atr = A_BOLD; |
45 | } |
46 | |
47 | #define DLG_COLOR(dialog, f, b, h) \ |
48 | do { \ |
49 | dlg.dialog.fg = (f); \ |
50 | dlg.dialog.bg = (b); \ |
51 | dlg.dialog.hl = (h); \ |
52 | } while (0) |
53 | |
54 | static void set_classic_theme(void) |
55 | { |
56 | DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true); |
57 | DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true); |
58 | DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false); |
59 | DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true); |
60 | DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true); |
61 | DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true); |
62 | DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false); |
63 | DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true); |
64 | DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false); |
65 | DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true); |
66 | DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true); |
67 | DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false); |
68 | DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true); |
69 | DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false); |
70 | DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true); |
71 | DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false); |
72 | DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true); |
73 | DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true); |
74 | DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true); |
75 | DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true); |
76 | DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true); |
77 | DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false); |
78 | DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true); |
79 | DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true); |
80 | DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true); |
81 | } |
82 | |
83 | static void set_blackbg_theme(void) |
84 | { |
85 | DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true); |
86 | DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false); |
87 | DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false); |
88 | DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false); |
89 | DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true); |
90 | |
91 | DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false); |
92 | DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false); |
93 | DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true); |
94 | DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false); |
95 | DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false); |
96 | DLG_COLOR(button_label_inactive, COLOR_WHITE, COLOR_BLACK, false); |
97 | |
98 | DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false); |
99 | |
100 | DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false); |
101 | |
102 | DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false); |
103 | DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true); |
104 | |
105 | DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false); |
106 | DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false); |
107 | |
108 | DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false); |
109 | DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true); |
110 | DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false); |
111 | DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true); |
112 | |
113 | DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false); |
114 | DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true); |
115 | |
116 | DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false); |
117 | DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false); |
118 | } |
119 | |
120 | static void set_bluetitle_theme(void) |
121 | { |
122 | set_classic_theme(); |
123 | DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true); |
124 | DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true); |
125 | DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true); |
126 | DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true); |
127 | DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true); |
128 | DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true); |
129 | |
130 | } |
131 | |
132 | /* |
133 | * Select color theme |
134 | */ |
135 | static int set_theme(const char *theme) |
136 | { |
137 | int use_color = 1; |
138 | if (!theme) |
139 | set_bluetitle_theme(); |
140 | else if (strcmp(s1: theme, s2: "classic" ) == 0) |
141 | set_classic_theme(); |
142 | else if (strcmp(s1: theme, s2: "bluetitle" ) == 0) |
143 | set_bluetitle_theme(); |
144 | else if (strcmp(s1: theme, s2: "blackbg" ) == 0) |
145 | set_blackbg_theme(); |
146 | else if (strcmp(s1: theme, s2: "mono" ) == 0) |
147 | use_color = 0; |
148 | |
149 | return use_color; |
150 | } |
151 | |
152 | static void init_one_color(struct dialog_color *color) |
153 | { |
154 | static int pair = 0; |
155 | |
156 | pair++; |
157 | init_pair(pair, color->fg, color->bg); |
158 | if (color->hl) |
159 | color->atr = A_BOLD | COLOR_PAIR(pair); |
160 | else |
161 | color->atr = COLOR_PAIR(pair); |
162 | } |
163 | |
164 | static void init_dialog_colors(void) |
165 | { |
166 | init_one_color(color: &dlg.screen); |
167 | init_one_color(color: &dlg.shadow); |
168 | init_one_color(color: &dlg.dialog); |
169 | init_one_color(color: &dlg.title); |
170 | init_one_color(color: &dlg.border); |
171 | init_one_color(color: &dlg.button_active); |
172 | init_one_color(color: &dlg.button_inactive); |
173 | init_one_color(color: &dlg.button_key_active); |
174 | init_one_color(color: &dlg.button_key_inactive); |
175 | init_one_color(color: &dlg.button_label_active); |
176 | init_one_color(color: &dlg.button_label_inactive); |
177 | init_one_color(color: &dlg.inputbox); |
178 | init_one_color(color: &dlg.position_indicator); |
179 | init_one_color(color: &dlg.menubox); |
180 | init_one_color(color: &dlg.menubox_border); |
181 | init_one_color(color: &dlg.item); |
182 | init_one_color(color: &dlg.item_selected); |
183 | init_one_color(color: &dlg.tag); |
184 | init_one_color(color: &dlg.tag_selected); |
185 | init_one_color(color: &dlg.tag_key); |
186 | init_one_color(color: &dlg.tag_key_selected); |
187 | init_one_color(color: &dlg.check); |
188 | init_one_color(color: &dlg.check_selected); |
189 | init_one_color(color: &dlg.uarrow); |
190 | init_one_color(color: &dlg.darrow); |
191 | } |
192 | |
193 | /* |
194 | * Setup for color display |
195 | */ |
196 | static void color_setup(const char *theme) |
197 | { |
198 | int use_color; |
199 | |
200 | use_color = set_theme(theme); |
201 | if (use_color && has_colors()) { |
202 | start_color(); |
203 | init_dialog_colors(); |
204 | } else |
205 | set_mono_theme(); |
206 | } |
207 | |
208 | /* |
209 | * Set window to attribute 'attr' |
210 | */ |
211 | void attr_clear(WINDOW * win, int height, int width, chtype attr) |
212 | { |
213 | int i, j; |
214 | |
215 | wattrset(win, attr); |
216 | for (i = 0; i < height; i++) { |
217 | wmove(win, i, 0); |
218 | for (j = 0; j < width; j++) |
219 | waddch(win, ' '); |
220 | } |
221 | touchwin(win); |
222 | } |
223 | |
224 | void dialog_clear(void) |
225 | { |
226 | int lines, columns; |
227 | |
228 | lines = getmaxy(stdscr); |
229 | columns = getmaxx(stdscr); |
230 | |
231 | attr_clear(win: stdscr, height: lines, width: columns, attr: dlg.screen.atr); |
232 | /* Display background title if it exists ... - SLH */ |
233 | if (dlg.backtitle != NULL) { |
234 | int i, len = 0, skip = 0; |
235 | struct subtitle_list *pos; |
236 | |
237 | wattrset(stdscr, dlg.screen.atr); |
238 | mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle); |
239 | |
240 | for (pos = dlg.subtitles; pos != NULL; pos = pos->next) { |
241 | /* 3 is for the arrow and spaces */ |
242 | len += strlen(s: pos->text) + 3; |
243 | } |
244 | |
245 | wmove(stdscr, 1, 1); |
246 | if (len > columns - 2) { |
247 | const char *ellipsis = "[...] " ; |
248 | waddstr(stdscr, ellipsis); |
249 | skip = len - (columns - 2 - strlen(s: ellipsis)); |
250 | } |
251 | |
252 | for (pos = dlg.subtitles; pos != NULL; pos = pos->next) { |
253 | if (skip == 0) |
254 | waddch(stdscr, ACS_RARROW); |
255 | else |
256 | skip--; |
257 | |
258 | if (skip == 0) |
259 | waddch(stdscr, ' '); |
260 | else |
261 | skip--; |
262 | |
263 | if (skip < strlen(s: pos->text)) { |
264 | waddstr(stdscr, pos->text + skip); |
265 | skip = 0; |
266 | } else |
267 | skip -= strlen(s: pos->text); |
268 | |
269 | if (skip == 0) |
270 | waddch(stdscr, ' '); |
271 | else |
272 | skip--; |
273 | } |
274 | |
275 | for (i = len + 1; i < columns - 1; i++) |
276 | waddch(stdscr, ACS_HLINE); |
277 | } |
278 | wnoutrefresh(stdscr); |
279 | } |
280 | |
281 | /* |
282 | * Do some initialization for dialog |
283 | */ |
284 | int init_dialog(const char *backtitle) |
285 | { |
286 | int height, width; |
287 | |
288 | initscr(); /* Init curses */ |
289 | |
290 | /* Get current cursor position for signal handler in mconf.c */ |
291 | getyx(stdscr, saved_y, saved_x); |
292 | |
293 | getmaxyx(stdscr, height, width); |
294 | if (height < WINDOW_HEIGHT_MIN || width < WINDOW_WIDTH_MIN) { |
295 | endwin(); |
296 | return -ERRDISPLAYTOOSMALL; |
297 | } |
298 | |
299 | dlg.backtitle = backtitle; |
300 | color_setup(theme: getenv(name: "MENUCONFIG_COLOR" )); |
301 | |
302 | keypad(stdscr, TRUE); |
303 | cbreak(); |
304 | noecho(); |
305 | dialog_clear(); |
306 | |
307 | return 0; |
308 | } |
309 | |
310 | void set_dialog_backtitle(const char *backtitle) |
311 | { |
312 | dlg.backtitle = backtitle; |
313 | } |
314 | |
315 | void set_dialog_subtitles(struct subtitle_list *subtitles) |
316 | { |
317 | dlg.subtitles = subtitles; |
318 | } |
319 | |
320 | /* |
321 | * End using dialog functions. |
322 | */ |
323 | void end_dialog(int x, int y) |
324 | { |
325 | /* move cursor back to original position */ |
326 | move(y, x); |
327 | refresh(); |
328 | endwin(); |
329 | } |
330 | |
331 | /* Print the title of the dialog. Center the title and truncate |
332 | * tile if wider than dialog (- 2 chars). |
333 | **/ |
334 | void print_title(WINDOW *dialog, const char *title, int width) |
335 | { |
336 | if (title) { |
337 | int tlen = MIN(width - 2, strlen(title)); |
338 | wattrset(dialog, dlg.title.atr); |
339 | mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' '); |
340 | mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen); |
341 | waddch(dialog, ' '); |
342 | } |
343 | } |
344 | |
345 | /* |
346 | * Print a string of text in a window, automatically wrap around to the |
347 | * next line if the string is too long to fit on one line. Newline |
348 | * characters '\n' are properly processed. We start on a new line |
349 | * if there is no room for at least 4 nonblanks following a double-space. |
350 | */ |
351 | void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x) |
352 | { |
353 | int newl, cur_x, cur_y; |
354 | int prompt_len, room, wlen; |
355 | char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0; |
356 | |
357 | strcpy(dest: tempstr, src: prompt); |
358 | |
359 | prompt_len = strlen(s: tempstr); |
360 | |
361 | if (prompt_len <= width - x * 2) { /* If prompt is short */ |
362 | wmove(win, y, (width - prompt_len) / 2); |
363 | waddstr(win, tempstr); |
364 | } else { |
365 | cur_x = x; |
366 | cur_y = y; |
367 | newl = 1; |
368 | word = tempstr; |
369 | while (word && *word) { |
370 | sp = strpbrk(s: word, accept: "\n " ); |
371 | if (sp && *sp == '\n') |
372 | newline_separator = sp; |
373 | |
374 | if (sp) |
375 | *sp++ = 0; |
376 | |
377 | /* Wrap to next line if either the word does not fit, |
378 | or it is the first word of a new sentence, and it is |
379 | short, and the next word does not fit. */ |
380 | room = width - cur_x; |
381 | wlen = strlen(s: word); |
382 | if (wlen > room || |
383 | (newl && wlen < 4 && sp |
384 | && wlen + 1 + strlen(s: sp) > room |
385 | && (!(sp2 = strpbrk(s: sp, accept: "\n " )) |
386 | || wlen + 1 + (sp2 - sp) > room))) { |
387 | cur_y++; |
388 | cur_x = x; |
389 | } |
390 | wmove(win, cur_y, cur_x); |
391 | waddstr(win, word); |
392 | getyx(win, cur_y, cur_x); |
393 | |
394 | /* Move to the next line if the word separator was a newline */ |
395 | if (newline_separator) { |
396 | cur_y++; |
397 | cur_x = x; |
398 | newline_separator = 0; |
399 | } else |
400 | cur_x++; |
401 | |
402 | if (sp && *sp == ' ') { |
403 | cur_x++; /* double space */ |
404 | while (*++sp == ' ') ; |
405 | newl = 1; |
406 | } else |
407 | newl = 0; |
408 | word = sp; |
409 | } |
410 | } |
411 | } |
412 | |
413 | /* |
414 | * Print a button |
415 | */ |
416 | void print_button(WINDOW * win, const char *label, int y, int x, int selected) |
417 | { |
418 | int i, temp; |
419 | |
420 | wmove(win, y, x); |
421 | wattrset(win, selected ? dlg.button_active.atr |
422 | : dlg.button_inactive.atr); |
423 | waddstr(win, "<" ); |
424 | temp = strspn(s: label, accept: " " ); |
425 | label += temp; |
426 | wattrset(win, selected ? dlg.button_label_active.atr |
427 | : dlg.button_label_inactive.atr); |
428 | for (i = 0; i < temp; i++) |
429 | waddch(win, ' '); |
430 | wattrset(win, selected ? dlg.button_key_active.atr |
431 | : dlg.button_key_inactive.atr); |
432 | waddch(win, label[0]); |
433 | wattrset(win, selected ? dlg.button_label_active.atr |
434 | : dlg.button_label_inactive.atr); |
435 | waddstr(win, (char *)label + 1); |
436 | wattrset(win, selected ? dlg.button_active.atr |
437 | : dlg.button_inactive.atr); |
438 | waddstr(win, ">" ); |
439 | wmove(win, y, x + temp + 1); |
440 | } |
441 | |
442 | /* |
443 | * Draw a rectangular box with line drawing characters |
444 | */ |
445 | void |
446 | draw_box(WINDOW * win, int y, int x, int height, int width, |
447 | chtype box, chtype border) |
448 | { |
449 | int i, j; |
450 | |
451 | wattrset(win, 0); |
452 | for (i = 0; i < height; i++) { |
453 | wmove(win, y + i, x); |
454 | for (j = 0; j < width; j++) |
455 | if (!i && !j) |
456 | waddch(win, border | ACS_ULCORNER); |
457 | else if (i == height - 1 && !j) |
458 | waddch(win, border | ACS_LLCORNER); |
459 | else if (!i && j == width - 1) |
460 | waddch(win, box | ACS_URCORNER); |
461 | else if (i == height - 1 && j == width - 1) |
462 | waddch(win, box | ACS_LRCORNER); |
463 | else if (!i) |
464 | waddch(win, border | ACS_HLINE); |
465 | else if (i == height - 1) |
466 | waddch(win, box | ACS_HLINE); |
467 | else if (!j) |
468 | waddch(win, border | ACS_VLINE); |
469 | else if (j == width - 1) |
470 | waddch(win, box | ACS_VLINE); |
471 | else |
472 | waddch(win, box | ' '); |
473 | } |
474 | } |
475 | |
476 | /* |
477 | * Draw shadows along the right and bottom edge to give a more 3D look |
478 | * to the boxes |
479 | */ |
480 | void draw_shadow(WINDOW * win, int y, int x, int height, int width) |
481 | { |
482 | int i; |
483 | |
484 | if (has_colors()) { /* Whether terminal supports color? */ |
485 | wattrset(win, dlg.shadow.atr); |
486 | wmove(win, y + height, x + 2); |
487 | for (i = 0; i < width; i++) |
488 | waddch(win, winch(win) & A_CHARTEXT); |
489 | for (i = y + 1; i < y + height + 1; i++) { |
490 | wmove(win, i, x + width); |
491 | waddch(win, winch(win) & A_CHARTEXT); |
492 | waddch(win, winch(win) & A_CHARTEXT); |
493 | } |
494 | wnoutrefresh(win); |
495 | } |
496 | } |
497 | |
498 | /* |
499 | * Return the position of the first alphabetic character in a string. |
500 | */ |
501 | int first_alpha(const char *string, const char *exempt) |
502 | { |
503 | int i, in_paren = 0, c; |
504 | |
505 | for (i = 0; i < strlen(s: string); i++) { |
506 | c = tolower(string[i]); |
507 | |
508 | if (strchr(s: "<[(" , c: c)) |
509 | ++in_paren; |
510 | if (strchr(s: ">])" , c: c) && in_paren > 0) |
511 | --in_paren; |
512 | |
513 | if ((!in_paren) && isalpha(c) && strchr(s: exempt, c: c) == 0) |
514 | return i; |
515 | } |
516 | |
517 | return 0; |
518 | } |
519 | |
520 | /* |
521 | * ncurses uses ESC to detect escaped char sequences. This resutl in |
522 | * a small timeout before ESC is actually delivered to the application. |
523 | * lxdialog suggest <ESC> <ESC> which is correctly translated to two |
524 | * times esc. But then we need to ignore the second esc to avoid stepping |
525 | * out one menu too much. Filter away all escaped key sequences since |
526 | * keypad(FALSE) turn off ncurses support for escape sequences - and that's |
527 | * needed to make notimeout() do as expected. |
528 | */ |
529 | int on_key_esc(WINDOW *win) |
530 | { |
531 | int key; |
532 | int key2; |
533 | int key3; |
534 | |
535 | nodelay(win, TRUE); |
536 | keypad(win, FALSE); |
537 | key = wgetch(win); |
538 | key2 = wgetch(win); |
539 | do { |
540 | key3 = wgetch(win); |
541 | } while (key3 != ERR); |
542 | nodelay(win, FALSE); |
543 | keypad(win, TRUE); |
544 | if (key == KEY_ESC && key2 == ERR) |
545 | return KEY_ESC; |
546 | else if (key != ERR && key != KEY_ESC && key2 == ERR) |
547 | ungetch(key); |
548 | |
549 | return -1; |
550 | } |
551 | |
552 | /* redraw screen in new size */ |
553 | int on_key_resize(void) |
554 | { |
555 | dialog_clear(); |
556 | return KEY_RESIZE; |
557 | } |
558 | |
559 | struct dialog_list *item_cur; |
560 | struct dialog_list item_nil; |
561 | struct dialog_list *item_head; |
562 | |
563 | void item_reset(void) |
564 | { |
565 | struct dialog_list *p, *next; |
566 | |
567 | for (p = item_head; p; p = next) { |
568 | next = p->next; |
569 | free(ptr: p); |
570 | } |
571 | item_head = NULL; |
572 | item_cur = &item_nil; |
573 | } |
574 | |
575 | void item_make(const char *fmt, ...) |
576 | { |
577 | va_list ap; |
578 | struct dialog_list *p = malloc(size: sizeof(*p)); |
579 | |
580 | if (item_head) |
581 | item_cur->next = p; |
582 | else |
583 | item_head = p; |
584 | item_cur = p; |
585 | memset(s: p, c: 0, n: sizeof(*p)); |
586 | |
587 | va_start(ap, fmt); |
588 | vsnprintf(s: item_cur->node.str, maxlen: sizeof(item_cur->node.str), format: fmt, arg: ap); |
589 | va_end(ap); |
590 | } |
591 | |
592 | void item_add_str(const char *fmt, ...) |
593 | { |
594 | va_list ap; |
595 | size_t avail; |
596 | |
597 | avail = sizeof(item_cur->node.str) - strlen(s: item_cur->node.str); |
598 | |
599 | va_start(ap, fmt); |
600 | vsnprintf(s: item_cur->node.str + strlen(s: item_cur->node.str), |
601 | maxlen: avail, format: fmt, arg: ap); |
602 | item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0'; |
603 | va_end(ap); |
604 | } |
605 | |
606 | void item_set_tag(char tag) |
607 | { |
608 | item_cur->node.tag = tag; |
609 | } |
610 | void item_set_data(void *ptr) |
611 | { |
612 | item_cur->node.data = ptr; |
613 | } |
614 | |
615 | void item_set_selected(int val) |
616 | { |
617 | item_cur->node.selected = val; |
618 | } |
619 | |
620 | int item_activate_selected(void) |
621 | { |
622 | item_foreach() |
623 | if (item_is_selected()) |
624 | return 1; |
625 | return 0; |
626 | } |
627 | |
628 | void *item_data(void) |
629 | { |
630 | return item_cur->node.data; |
631 | } |
632 | |
633 | char item_tag(void) |
634 | { |
635 | return item_cur->node.tag; |
636 | } |
637 | |
638 | int item_count(void) |
639 | { |
640 | int n = 0; |
641 | struct dialog_list *p; |
642 | |
643 | for (p = item_head; p; p = p->next) |
644 | n++; |
645 | return n; |
646 | } |
647 | |
648 | void item_set(int n) |
649 | { |
650 | int i = 0; |
651 | item_foreach() |
652 | if (i++ == n) |
653 | return; |
654 | } |
655 | |
656 | int item_n(void) |
657 | { |
658 | int n = 0; |
659 | struct dialog_list *p; |
660 | |
661 | for (p = item_head; p; p = p->next) { |
662 | if (p == item_cur) |
663 | return n; |
664 | n++; |
665 | } |
666 | return 0; |
667 | } |
668 | |
669 | const char *item_str(void) |
670 | { |
671 | return item_cur->node.str; |
672 | } |
673 | |
674 | int item_is_selected(void) |
675 | { |
676 | return (item_cur->node.selected != 0); |
677 | } |
678 | |
679 | int item_is_tag(char tag) |
680 | { |
681 | return (item_cur->node.tag == tag); |
682 | } |
683 | |