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 
set_mono_theme(void)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 
set_classic_theme(void)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 
set_blackbg_theme(void)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 
set_bluetitle_theme(void)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  */
set_theme(const char * theme)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 
init_one_color(struct dialog_color * color)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 
init_dialog_colors(void)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  */
color_setup(const char * theme)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  */
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 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 
set_dialog_backtitle(const char * backtitle)293 void set_dialog_backtitle(const char *backtitle)
294 {
295 	dlg.backtitle = backtitle;
296 }
297 
298 /*
299  * End using dialog functions.
300  */
end_dialog(int x,int y)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  **/
print_title(WINDOW * dialog,const char * title,int width)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  */
print_autowrap(WINDOW * win,const char * prompt,int width,int y,int x)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  */
print_button(WINDOW * win,const char * label,int y,int x,int selected)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
draw_box(WINDOW * win,int y,int x,int height,int width,chtype box,chtype border)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  */
draw_shadow(WINDOW * win,int y,int x,int height,int width)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  */
first_alpha(const char * string,const char * exempt)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  */
on_key_esc(WINDOW * win)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 */
on_key_resize(void)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 
item_reset(void)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 
item_make(const char * fmt,...)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 
item_add_str(const char * fmt,...)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 
item_set_tag(char tag)581 void item_set_tag(char tag)
582 {
583 	item_cur->node.tag = tag;
584 }
item_set_data(void * ptr)585 void item_set_data(void *ptr)
586 {
587 	item_cur->node.data = ptr;
588 }
589 
item_set_selected(int val)590 void item_set_selected(int val)
591 {
592 	item_cur->node.selected = val;
593 }
594 
item_activate_selected(void)595 int item_activate_selected(void)
596 {
597 	item_foreach()
598 		if (item_is_selected())
599 			return 1;
600 	return 0;
601 }
602 
item_data(void)603 void *item_data(void)
604 {
605 	return item_cur->node.data;
606 }
607 
item_tag(void)608 char item_tag(void)
609 {
610 	return item_cur->node.tag;
611 }
612 
item_count(void)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 
item_set(int n)623 void item_set(int n)
624 {
625 	int i = 0;
626 	item_foreach()
627 		if (i++ == n)
628 			return;
629 }
630 
item_n(void)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 
item_str(void)644 const char *item_str(void)
645 {
646 	return item_cur->node.str;
647 }
648 
item_is_selected(void)649 int item_is_selected(void)
650 {
651 	return (item_cur->node.selected != 0);
652 }
653 
item_is_tag(char tag)654 int item_is_tag(char tag)
655 {
656 	return (item_cur->node.tag == tag);
657 }
658