scripts/kconfig/lxdialog/util.c

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