1
0

util.c 17 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657
  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. *
  7. * This program is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU General Public License
  9. * as published by the Free Software Foundation; either version 2
  10. * of the License, or (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20. */
  21. #include <stdarg.h>
  22. #include "dialog.h"
  23. struct dialog_info dlg;
  24. static void set_mono_theme(void)
  25. {
  26. dlg.screen.atr = A_NORMAL;
  27. dlg.shadow.atr = A_NORMAL;
  28. dlg.dialog.atr = A_NORMAL;
  29. dlg.title.atr = A_BOLD;
  30. dlg.border.atr = A_NORMAL;
  31. dlg.button_active.atr = A_REVERSE;
  32. dlg.button_inactive.atr = A_DIM;
  33. dlg.button_key_active.atr = A_REVERSE;
  34. dlg.button_key_inactive.atr = A_BOLD;
  35. dlg.button_label_active.atr = A_REVERSE;
  36. dlg.button_label_inactive.atr = A_NORMAL;
  37. dlg.inputbox.atr = A_NORMAL;
  38. dlg.inputbox_border.atr = A_NORMAL;
  39. dlg.searchbox.atr = A_NORMAL;
  40. dlg.searchbox_title.atr = A_BOLD;
  41. dlg.searchbox_border.atr = A_NORMAL;
  42. dlg.position_indicator.atr = A_BOLD;
  43. dlg.menubox.atr = A_NORMAL;
  44. dlg.menubox_border.atr = A_NORMAL;
  45. dlg.item.atr = A_NORMAL;
  46. dlg.item_selected.atr = A_REVERSE;
  47. dlg.tag.atr = A_BOLD;
  48. dlg.tag_selected.atr = A_REVERSE;
  49. dlg.tag_key.atr = A_BOLD;
  50. dlg.tag_key_selected.atr = A_REVERSE;
  51. dlg.check.atr = A_BOLD;
  52. dlg.check_selected.atr = A_REVERSE;
  53. dlg.uarrow.atr = A_BOLD;
  54. dlg.darrow.atr = A_BOLD;
  55. }
  56. #define DLG_COLOR(dialog, f, b, h) \
  57. do { \
  58. dlg.dialog.fg = (f); \
  59. dlg.dialog.bg = (b); \
  60. dlg.dialog.hl = (h); \
  61. } while (0)
  62. static void set_classic_theme(void)
  63. {
  64. DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true);
  65. DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true);
  66. DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false);
  67. DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true);
  68. DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true);
  69. DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true);
  70. DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false);
  71. DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true);
  72. DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false);
  73. DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true);
  74. DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true);
  75. DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false);
  76. DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false);
  77. DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false);
  78. DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true);
  79. DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true);
  80. DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true);
  81. DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false);
  82. DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true);
  83. DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false);
  84. DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true);
  85. DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true);
  86. DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true);
  87. DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true);
  88. DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true);
  89. DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false);
  90. DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true);
  91. DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true);
  92. DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true);
  93. }
  94. static void set_blackbg_theme(void)
  95. {
  96. DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true);
  97. DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
  98. DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
  99. DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false);
  100. DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);
  101. DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false);
  102. DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false);
  103. DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true);
  104. DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false);
  105. DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false);
  106. DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true);
  107. DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false);
  108. DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false);
  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. DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false);
  113. DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false);
  114. DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true);
  115. DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false);
  116. DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false);
  117. DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false);
  118. DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true);
  119. DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false);
  120. DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true);
  121. DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false);
  122. DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true);
  123. DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
  124. DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
  125. }
  126. static void set_bluetitle_theme(void)
  127. {
  128. set_classic_theme();
  129. DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true);
  130. DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true);
  131. DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true);
  132. DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true);
  133. DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true);
  134. DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true);
  135. DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true);
  136. }
  137. /*
  138. * Select color theme
  139. */
  140. static int set_theme(const char *theme)
  141. {
  142. int use_color = 1;
  143. if (!theme)
  144. set_bluetitle_theme();
  145. else if (strcmp(theme, "classic") == 0)
  146. set_classic_theme();
  147. else if (strcmp(theme, "bluetitle") == 0)
  148. set_bluetitle_theme();
  149. else if (strcmp(theme, "blackbg") == 0)
  150. set_blackbg_theme();
  151. else if (strcmp(theme, "mono") == 0)
  152. use_color = 0;
  153. return use_color;
  154. }
  155. static void init_one_color(struct dialog_color *color)
  156. {
  157. static int pair = 0;
  158. pair++;
  159. init_pair(pair, color->fg, color->bg);
  160. if (color->hl)
  161. color->atr = A_BOLD | COLOR_PAIR(pair);
  162. else
  163. color->atr = COLOR_PAIR(pair);
  164. }
  165. static void init_dialog_colors(void)
  166. {
  167. init_one_color(&dlg.screen);
  168. init_one_color(&dlg.shadow);
  169. init_one_color(&dlg.dialog);
  170. init_one_color(&dlg.title);
  171. init_one_color(&dlg.border);
  172. init_one_color(&dlg.button_active);
  173. init_one_color(&dlg.button_inactive);
  174. init_one_color(&dlg.button_key_active);
  175. init_one_color(&dlg.button_key_inactive);
  176. init_one_color(&dlg.button_label_active);
  177. init_one_color(&dlg.button_label_inactive);
  178. init_one_color(&dlg.inputbox);
  179. init_one_color(&dlg.inputbox_border);
  180. init_one_color(&dlg.searchbox);
  181. init_one_color(&dlg.searchbox_title);
  182. init_one_color(&dlg.searchbox_border);
  183. init_one_color(&dlg.position_indicator);
  184. init_one_color(&dlg.menubox);
  185. init_one_color(&dlg.menubox_border);
  186. init_one_color(&dlg.item);
  187. init_one_color(&dlg.item_selected);
  188. init_one_color(&dlg.tag);
  189. init_one_color(&dlg.tag_selected);
  190. init_one_color(&dlg.tag_key);
  191. init_one_color(&dlg.tag_key_selected);
  192. init_one_color(&dlg.check);
  193. init_one_color(&dlg.check_selected);
  194. init_one_color(&dlg.uarrow);
  195. init_one_color(&dlg.darrow);
  196. }
  197. /*
  198. * Setup for color display
  199. */
  200. static void color_setup(const char *theme)
  201. {
  202. int use_color;
  203. use_color = set_theme(theme);
  204. if (use_color && has_colors()) {
  205. start_color();
  206. init_dialog_colors();
  207. } else
  208. set_mono_theme();
  209. }
  210. /*
  211. * Set window to attribute 'attr'
  212. */
  213. void attr_clear(WINDOW * win, int height, int width, chtype attr)
  214. {
  215. int i, j;
  216. wattrset(win, attr);
  217. for (i = 0; i < height; i++) {
  218. wmove(win, i, 0);
  219. for (j = 0; j < width; j++)
  220. waddch(win, ' ');
  221. }
  222. touchwin(win);
  223. }
  224. void dialog_clear(void)
  225. {
  226. attr_clear(stdscr, LINES, COLS, dlg.screen.atr);
  227. /* Display background title if it exists ... - SLH */
  228. if (dlg.backtitle != NULL) {
  229. int i;
  230. wattrset(stdscr, dlg.screen.atr);
  231. mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
  232. wmove(stdscr, 1, 1);
  233. for (i = 1; i < COLS - 1; i++)
  234. waddch(stdscr, ACS_HLINE);
  235. }
  236. wnoutrefresh(stdscr);
  237. }
  238. /*
  239. * Do some initialization for dialog
  240. */
  241. int init_dialog(const char *backtitle)
  242. {
  243. int height, width;
  244. initscr(); /* Init curses */
  245. getmaxyx(stdscr, height, width);
  246. if (height < 19 || width < 80) {
  247. endwin();
  248. return -ERRDISPLAYTOOSMALL;
  249. }
  250. dlg.backtitle = backtitle;
  251. color_setup(getenv("MENUCONFIG_COLOR"));
  252. keypad(stdscr, TRUE);
  253. cbreak();
  254. noecho();
  255. dialog_clear();
  256. return 0;
  257. }
  258. void set_dialog_backtitle(const char *backtitle)
  259. {
  260. dlg.backtitle = backtitle;
  261. }
  262. /*
  263. * End using dialog functions.
  264. */
  265. void end_dialog(int x, int y)
  266. {
  267. /* move cursor back to original position */
  268. move(y, x);
  269. refresh();
  270. endwin();
  271. }
  272. /* Print the title of the dialog. Center the title and truncate
  273. * tile if wider than dialog (- 2 chars).
  274. **/
  275. void print_title(WINDOW *dialog, const char *title, int width)
  276. {
  277. if (title) {
  278. int tlen = MIN(width - 2, strlen(title));
  279. wattrset(dialog, dlg.title.atr);
  280. mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
  281. mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
  282. waddch(dialog, ' ');
  283. }
  284. }
  285. /*
  286. * Print a string of text in a window, automatically wrap around to the
  287. * next line if the string is too long to fit on one line. Newline
  288. * characters '\n' are replaced by spaces. We start on a new line
  289. * if there is no room for at least 4 nonblanks following a double-space.
  290. */
  291. void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
  292. {
  293. int newl, cur_x, cur_y;
  294. int i, prompt_len, room, wlen;
  295. char tempstr[MAX_LEN + 1], *word, *sp, *sp2;
  296. strcpy(tempstr, prompt);
  297. prompt_len = strlen(tempstr);
  298. /*
  299. * Remove newlines
  300. */
  301. for (i = 0; i < prompt_len; i++) {
  302. if (tempstr[i] == '\n')
  303. tempstr[i] = ' ';
  304. }
  305. if (prompt_len <= width - x * 2) { /* If prompt is short */
  306. wmove(win, y, (width - prompt_len) / 2);
  307. waddstr(win, tempstr);
  308. } else {
  309. cur_x = x;
  310. cur_y = y;
  311. newl = 1;
  312. word = tempstr;
  313. while (word && *word) {
  314. sp = strchr(word, ' ');
  315. if (sp)
  316. *sp++ = 0;
  317. /* Wrap to next line if either the word does not fit,
  318. or it is the first word of a new sentence, and it is
  319. short, and the next word does not fit. */
  320. room = width - cur_x;
  321. wlen = strlen(word);
  322. if (wlen > room ||
  323. (newl && wlen < 4 && sp
  324. && wlen + 1 + strlen(sp) > room
  325. && (!(sp2 = strchr(sp, ' '))
  326. || wlen + 1 + (sp2 - sp) > room))) {
  327. cur_y++;
  328. cur_x = x;
  329. }
  330. wmove(win, cur_y, cur_x);
  331. waddstr(win, word);
  332. getyx(win, cur_y, cur_x);
  333. cur_x++;
  334. if (sp && *sp == ' ') {
  335. cur_x++; /* double space */
  336. while (*++sp == ' ') ;
  337. newl = 1;
  338. } else
  339. newl = 0;
  340. word = sp;
  341. }
  342. }
  343. }
  344. /*
  345. * Print a button
  346. */
  347. void print_button(WINDOW * win, const char *label, int y, int x, int selected)
  348. {
  349. int i, temp;
  350. wmove(win, y, x);
  351. wattrset(win, selected ? dlg.button_active.atr
  352. : dlg.button_inactive.atr);
  353. waddstr(win, "<");
  354. temp = strspn(label, " ");
  355. label += temp;
  356. wattrset(win, selected ? dlg.button_label_active.atr
  357. : dlg.button_label_inactive.atr);
  358. for (i = 0; i < temp; i++)
  359. waddch(win, ' ');
  360. wattrset(win, selected ? dlg.button_key_active.atr
  361. : dlg.button_key_inactive.atr);
  362. waddch(win, label[0]);
  363. wattrset(win, selected ? dlg.button_label_active.atr
  364. : dlg.button_label_inactive.atr);
  365. waddstr(win, (char *)label + 1);
  366. wattrset(win, selected ? dlg.button_active.atr
  367. : dlg.button_inactive.atr);
  368. waddstr(win, ">");
  369. wmove(win, y, x + temp + 1);
  370. }
  371. /*
  372. * Draw a rectangular box with line drawing characters
  373. */
  374. void
  375. draw_box(WINDOW * win, int y, int x, int height, int width,
  376. chtype box, chtype border)
  377. {
  378. int i, j;
  379. wattrset(win, 0);
  380. for (i = 0; i < height; i++) {
  381. wmove(win, y + i, x);
  382. for (j = 0; j < width; j++)
  383. if (!i && !j)
  384. waddch(win, border | ACS_ULCORNER);
  385. else if (i == height - 1 && !j)
  386. waddch(win, border | ACS_LLCORNER);
  387. else if (!i && j == width - 1)
  388. waddch(win, box | ACS_URCORNER);
  389. else if (i == height - 1 && j == width - 1)
  390. waddch(win, box | ACS_LRCORNER);
  391. else if (!i)
  392. waddch(win, border | ACS_HLINE);
  393. else if (i == height - 1)
  394. waddch(win, box | ACS_HLINE);
  395. else if (!j)
  396. waddch(win, border | ACS_VLINE);
  397. else if (j == width - 1)
  398. waddch(win, box | ACS_VLINE);
  399. else
  400. waddch(win, box | ' ');
  401. }
  402. }
  403. /*
  404. * Draw shadows along the right and bottom edge to give a more 3D look
  405. * to the boxes
  406. */
  407. void draw_shadow(WINDOW * win, int y, int x, int height, int width)
  408. {
  409. int i;
  410. if (has_colors()) { /* Whether terminal supports color? */
  411. wattrset(win, dlg.shadow.atr);
  412. wmove(win, y + height, x + 2);
  413. for (i = 0; i < width; i++)
  414. waddch(win, winch(win) & A_CHARTEXT);
  415. for (i = y + 1; i < y + height + 1; i++) {
  416. wmove(win, i, x + width);
  417. waddch(win, winch(win) & A_CHARTEXT);
  418. waddch(win, winch(win) & A_CHARTEXT);
  419. }
  420. wnoutrefresh(win);
  421. }
  422. }
  423. /*
  424. * Return the position of the first alphabetic character in a string.
  425. */
  426. int first_alpha(const char *string, const char *exempt)
  427. {
  428. int i, in_paren = 0, c;
  429. for (i = 0; i < strlen(string); i++) {
  430. c = tolower(string[i]);
  431. if (strchr("<[(", c))
  432. ++in_paren;
  433. if (strchr(">])", c) && in_paren > 0)
  434. --in_paren;
  435. if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
  436. return i;
  437. }
  438. return 0;
  439. }
  440. /*
  441. * ncurses uses ESC to detect escaped char sequences. This resutl in
  442. * a small timeout before ESC is actually delivered to the application.
  443. * lxdialog suggest <ESC> <ESC> which is correctly translated to two
  444. * times esc. But then we need to ignore the second esc to avoid stepping
  445. * out one menu too much. Filter away all escaped key sequences since
  446. * keypad(FALSE) turn off ncurses support for escape sequences - and thats
  447. * needed to make notimeout() do as expected.
  448. */
  449. int on_key_esc(WINDOW *win)
  450. {
  451. int key;
  452. int key2;
  453. int key3;
  454. nodelay(win, TRUE);
  455. keypad(win, FALSE);
  456. key = wgetch(win);
  457. key2 = wgetch(win);
  458. do {
  459. key3 = wgetch(win);
  460. } while (key3 != ERR);
  461. nodelay(win, FALSE);
  462. keypad(win, TRUE);
  463. if (key == KEY_ESC && key2 == ERR)
  464. return KEY_ESC;
  465. else if (key != ERR && key != KEY_ESC && key2 == ERR)
  466. ungetch(key);
  467. return -1;
  468. }
  469. /* redraw screen in new size */
  470. int on_key_resize(void)
  471. {
  472. dialog_clear();
  473. return KEY_RESIZE;
  474. }
  475. struct dialog_list *item_cur;
  476. struct dialog_list item_nil;
  477. struct dialog_list *item_head;
  478. void item_reset(void)
  479. {
  480. struct dialog_list *p, *next;
  481. for (p = item_head; p; p = next) {
  482. next = p->next;
  483. free(p);
  484. }
  485. item_head = NULL;
  486. item_cur = &item_nil;
  487. }
  488. void item_make(const char *fmt, ...)
  489. {
  490. va_list ap;
  491. struct dialog_list *p = malloc(sizeof(*p));
  492. if (item_head)
  493. item_cur->next = p;
  494. else
  495. item_head = p;
  496. item_cur = p;
  497. memset(p, 0, sizeof(*p));
  498. va_start(ap, fmt);
  499. vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
  500. va_end(ap);
  501. }
  502. void item_add_str(const char *fmt, ...)
  503. {
  504. va_list ap;
  505. size_t avail;
  506. avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
  507. va_start(ap, fmt);
  508. vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
  509. avail, fmt, ap);
  510. item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
  511. va_end(ap);
  512. }
  513. void item_set_tag(char tag)
  514. {
  515. item_cur->node.tag = tag;
  516. }
  517. void item_set_data(void *ptr)
  518. {
  519. item_cur->node.data = ptr;
  520. }
  521. void item_set_selected(int val)
  522. {
  523. item_cur->node.selected = val;
  524. }
  525. int item_activate_selected(void)
  526. {
  527. item_foreach()
  528. if (item_is_selected())
  529. return 1;
  530. return 0;
  531. }
  532. void *item_data(void)
  533. {
  534. return item_cur->node.data;
  535. }
  536. char item_tag(void)
  537. {
  538. return item_cur->node.tag;
  539. }
  540. int item_count(void)
  541. {
  542. int n = 0;
  543. struct dialog_list *p;
  544. for (p = item_head; p; p = p->next)
  545. n++;
  546. return n;
  547. }
  548. void item_set(int n)
  549. {
  550. int i = 0;
  551. item_foreach()
  552. if (i++ == n)
  553. return;
  554. }
  555. int item_n(void)
  556. {
  557. int n = 0;
  558. struct dialog_list *p;
  559. for (p = item_head; p; p = p->next) {
  560. if (p == item_cur)
  561. return n;
  562. n++;
  563. }
  564. return 0;
  565. }
  566. const char *item_str(void)
  567. {
  568. return item_cur->node.str;
  569. }
  570. int item_is_selected(void)
  571. {
  572. return (item_cur->node.selected != 0);
  573. }
  574. int item_is_tag(char tag)
  575. {
  576. return (item_cur->node.tag == tag);
  577. }