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