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