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mm-only debug patch...
[mmotm.git] / scripts / kconfig / lxdialog / util.c
blobf2375ad7ebc9bf07d306fc8de611f631b36cd7bf
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 }
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