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