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compat: return -EFAULT on error in waitid()
[linux/fpc-iii.git] / scripts / kconfig / mconf.c
blob53975cf876083ecba455a7033222b2ccc3690686
1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 *
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7 *
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9 */
10
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <signal.h>
19 #include <unistd.h>
20 #include <locale.h>
21
22 #include "lkc.h"
23 #include "lxdialog/dialog.h"
24
25 static const char mconf_readme[] = N_(
26 "Overview\n"
27 "--------\n"
28 "This interface let you select features and parameters for the build.\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
30 "must be entered in as decimal or hexadecimal numbers or text.\n"
31 "\n"
32 "Menu items beginning with following braces represent features that\n"
33 " [ ] can be built in or removed\n"
34 " < > can be built in, modularized or removed\n"
35 " { } can be built in or modularized (selected by other feature)\n"
36 " - - are selected by other feature,\n"
37 "while *, M or whitespace inside braces means to build in, build as\n"
38 "a module or to exclude the feature respectively.\n"
39 "\n"
40 "To change any of these features, highlight it with the cursor\n"
41 "keys and press <Y> to build it in, <M> to make it a module or\n"
42 "<N> to removed it. You may also press the <Space Bar> to cycle\n"
43 "through the available options (ie. Y->N->M->Y).\n"
44 "\n"
45 "Some additional keyboard hints:\n"
46 "\n"
47 "Menus\n"
48 "----------\n"
49 "o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
50 " you wish to change or submenu wish to select and press <Enter>.\n"
51 " Submenus are designated by \"--->\".\n"
52 "\n"
53 " Shortcut: Press the option's highlighted letter (hotkey).\n"
54 " Pressing a hotkey more than once will sequence\n"
55 " through all visible items which use that hotkey.\n"
56 "\n"
57 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
58 " unseen options into view.\n"
59 "\n"
60 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
61 " and press <ENTER>.\n"
62 "\n"
63 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
64 " using those letters. You may press a single <ESC>, but\n"
65 " there is a delayed response which you may find annoying.\n"
66 "\n"
67 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
68 " <Exit> and <Help>.\n"
69 "\n"
70 "o To get help with an item, use the cursor keys to highlight <Help>\n"
71 " and press <ENTER>.\n"
72 "\n"
73 " Shortcut: Press <H> or <?>.\n"
74 "\n"
75 "o To toggle the display of hidden options, press <Z>.\n"
76 "\n"
77 "\n"
78 "Radiolists (Choice lists)\n"
79 "-----------\n"
80 "o Use the cursor keys to select the option you wish to set and press\n"
81 " <S> or the <SPACE BAR>.\n"
82 "\n"
83 " Shortcut: Press the first letter of the option you wish to set then\n"
84 " press <S> or <SPACE BAR>.\n"
85 "\n"
86 "o To see available help for the item, use the cursor keys to highlight\n"
87 " <Help> and Press <ENTER>.\n"
88 "\n"
89 " Shortcut: Press <H> or <?>.\n"
90 "\n"
91 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
92 " <Help>\n"
93 "\n"
94 "\n"
95 "Data Entry\n"
96 "-----------\n"
97 "o Enter the requested information and press <ENTER>\n"
98 " If you are entering hexadecimal values, it is not necessary to\n"
99 " add the '0x' prefix to the entry.\n"
100 "\n"
101 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
102 " and press <ENTER>. You can try <TAB><H> as well.\n"
103 "\n"
104 "\n"
105 "Text Box (Help Window)\n"
106 "--------\n"
107 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
108 " keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for \n"
109 " those who are familiar with less and lynx.\n"
110 "\n"
111 "o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
112 "\n"
113 "\n"
114 "Alternate Configuration Files\n"
115 "-----------------------------\n"
116 "Menuconfig supports the use of alternate configuration files for\n"
117 "those who, for various reasons, find it necessary to switch\n"
118 "between different configurations.\n"
119 "\n"
120 "At the end of the main menu you will find two options. One is\n"
121 "for saving the current configuration to a file of your choosing.\n"
122 "The other option is for loading a previously saved alternate\n"
123 "configuration.\n"
124 "\n"
125 "Even if you don't use alternate configuration files, but you\n"
126 "find during a Menuconfig session that you have completely messed\n"
127 "up your settings, you may use the \"Load Alternate...\" option to\n"
128 "restore your previously saved settings from \".config\" without\n"
129 "restarting Menuconfig.\n"
130 "\n"
131 "Other information\n"
132 "-----------------\n"
133 "If you use Menuconfig in an XTERM window make sure you have your\n"
134 "$TERM variable set to point to a xterm definition which supports color.\n"
135 "Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
136 "display correctly in a RXVT window because rxvt displays only one\n"
137 "intensity of color, bright.\n"
138 "\n"
139 "Menuconfig will display larger menus on screens or xterms which are\n"
140 "set to display more than the standard 25 row by 80 column geometry.\n"
141 "In order for this to work, the \"stty size\" command must be able to\n"
142 "display the screen's current row and column geometry. I STRONGLY\n"
143 "RECOMMEND that you make sure you do NOT have the shell variables\n"
144 "LINES and COLUMNS exported into your environment. Some distributions\n"
145 "export those variables via /etc/profile. Some ncurses programs can\n"
146 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
147 "the true screen size.\n"
148 "\n"
149 "Optional personality available\n"
150 "------------------------------\n"
151 "If you prefer to have all of the options listed in a single menu, rather\n"
152 "than the default multimenu hierarchy, run the menuconfig with\n"
153 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
154 "\n"
155 "make MENUCONFIG_MODE=single_menu menuconfig\n"
156 "\n"
157 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
158 "is already unrolled.\n"
159 "\n"
160 "Note that this mode can eventually be a little more CPU expensive\n"
161 "(especially with a larger number of unrolled categories) than the\n"
162 "default mode.\n"
163 "\n"
164 "Different color themes available\n"
165 "--------------------------------\n"
166 "It is possible to select different color themes using the variable\n"
167 "MENUCONFIG_COLOR. To select a theme use:\n"
168 "\n"
169 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
170 "\n"
171 "Available themes are\n"
172 " mono => selects colors suitable for monochrome displays\n"
173 " blackbg => selects a color scheme with black background\n"
174 " classic => theme with blue background. The classic look\n"
175 " bluetitle => a LCD friendly version of classic. (default)\n"
176 "\n"),
177 menu_instructions[] = N_(
178 "Arrow keys navigate the menu. "
179 "<Enter> selects submenus --->. "
180 "Highlighted letters are hotkeys. "
181 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
182 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
183 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
184 radiolist_instructions[] = N_(
185 "Use the arrow keys to navigate this window or "
186 "press the hotkey of the item you wish to select "
187 "followed by the <SPACE BAR>. "
188 "Press <?> for additional information about this option."),
189 inputbox_instructions_int[] = N_(
190 "Please enter a decimal value. "
191 "Fractions will not be accepted. "
192 "Use the <TAB> key to move from the input field to the buttons below it."),
193 inputbox_instructions_hex[] = N_(
194 "Please enter a hexadecimal value. "
195 "Use the <TAB> key to move from the input field to the buttons below it."),
196 inputbox_instructions_string[] = N_(
197 "Please enter a string value. "
198 "Use the <TAB> key to move from the input field to the buttons below it."),
199 setmod_text[] = N_(
200 "This feature depends on another which has been configured as a module.\n"
201 "As a result, this feature will be built as a module."),
202 load_config_text[] = N_(
203 "Enter the name of the configuration file you wish to load. "
204 "Accept the name shown to restore the configuration you "
205 "last retrieved. Leave blank to abort."),
206 load_config_help[] = N_(
207 "\n"
208 "For various reasons, one may wish to keep several different\n"
209 "configurations available on a single machine.\n"
210 "\n"
211 "If you have saved a previous configuration in a file other than the\n"
212 "default one, entering its name here will allow you to modify that\n"
213 "configuration.\n"
214 "\n"
215 "If you are uncertain, then you have probably never used alternate\n"
216 "configuration files. You should therefore leave this blank to abort.\n"),
217 save_config_text[] = N_(
218 "Enter a filename to which this configuration should be saved "
219 "as an alternate. Leave blank to abort."),
220 save_config_help[] = N_(
221 "\n"
222 "For various reasons, one may wish to keep different configurations\n"
223 "available on a single machine.\n"
224 "\n"
225 "Entering a file name here will allow you to later retrieve, modify\n"
226 "and use the current configuration as an alternate to whatever\n"
227 "configuration options you have selected at that time.\n"
228 "\n"
229 "If you are uncertain what all this means then you should probably\n"
230 "leave this blank.\n"),
231 search_help[] = N_(
232 "\n"
233 "Search for symbols and display their relations.\n"
234 "Regular expressions are allowed.\n"
235 "Example: search for \"^FOO\"\n"
236 "Result:\n"
237 "-----------------------------------------------------------------\n"
238 "Symbol: FOO [=m]\n"
239 "Type : tristate\n"
240 "Prompt: Foo bus is used to drive the bar HW\n"
241 " Defined at drivers/pci/Kconfig:47\n"
242 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
243 " Location:\n"
244 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
245 " -> PCI support (PCI [=y])\n"
246 "(1) -> PCI access mode (<choice> [=y])\n"
247 " Selects: LIBCRC32\n"
248 " Selected by: BAR\n"
249 "-----------------------------------------------------------------\n"
250 "o The line 'Type:' shows the type of the configuration option for\n"
251 " this symbol (boolean, tristate, string, ...)\n"
252 "o The line 'Prompt:' shows the text used in the menu structure for\n"
253 " this symbol\n"
254 "o The 'Defined at' line tell at what file / line number the symbol\n"
255 " is defined\n"
256 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
257 " this symbol to be visible in the menu (selectable)\n"
258 "o The 'Location:' lines tell where in the menu structure this symbol\n"
259 " is located\n"
260 " A location followed by a [=y] indicates that this is a\n"
261 " selectable menu item - and the current value is displayed inside\n"
262 " brackets.\n"
263 " Press the key in the (#) prefix to jump directly to that\n"
264 " location. You will be returned to the current search results\n"
265 " after exiting this new menu.\n"
266 "o The 'Selects:' line tell what symbol will be automatically\n"
267 " selected if this symbol is selected (y or m)\n"
268 "o The 'Selected by' line tell what symbol has selected this symbol\n"
269 "\n"
270 "Only relevant lines are shown.\n"
271 "\n\n"
272 "Search examples:\n"
273 "Examples: USB => find all symbols containing USB\n"
274 " ^USB => find all symbols starting with USB\n"
275 " USB$ => find all symbols ending with USB\n"
276 "\n");
277
278 static int indent;
279 static struct menu *current_menu;
280 static int child_count;
281 static int single_menu_mode;
282 static int show_all_options;
283
284 static void conf(struct menu *menu, struct menu *active_menu);
285 static void conf_choice(struct menu *menu);
286 static void conf_string(struct menu *menu);
287 static void conf_load(void);
288 static void conf_save(void);
289 static int show_textbox_ext(const char *title, char *text, int r, int c,
290 int *keys, int *vscroll, int *hscroll,
291 update_text_fn update_text, void *data);
292 static void show_textbox(const char *title, const char *text, int r, int c);
293 static void show_helptext(const char *title, const char *text);
294 static void show_help(struct menu *menu);
295
296 static char filename[PATH_MAX+1];
297 static void set_config_filename(const char *config_filename)
298 {
299 static char menu_backtitle[PATH_MAX+128];
300 int size;
301
302 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
303 "%s - %s", config_filename, rootmenu.prompt->text);
304 if (size >= sizeof(menu_backtitle))
305 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
306 set_dialog_backtitle(menu_backtitle);
307
308 size = snprintf(filename, sizeof(filename), "%s", config_filename);
309 if (size >= sizeof(filename))
310 filename[sizeof(filename)-1] = '\0';
311 }
312
313
314 struct search_data {
315 struct list_head *head;
316 struct menu **targets;
317 int *keys;
318 };
319
320 static void update_text(char *buf, size_t start, size_t end, void *_data)
321 {
322 struct search_data *data = _data;
323 struct jump_key *pos;
324 int k = 0;
325
326 list_for_each_entry(pos, data->head, entries) {
327 if (pos->offset >= start && pos->offset < end) {
328 char header[4];
329
330 if (k < JUMP_NB) {
331 int key = '0' + (pos->index % JUMP_NB) + 1;
332
333 sprintf(header, "(%c)", key);
334 data->keys[k] = key;
335 data->targets[k] = pos->target;
336 k++;
337 } else {
338 sprintf(header, " ");
339 }
340
341 memcpy(buf + pos->offset, header, sizeof(header) - 1);
342 }
343 }
344 data->keys[k] = 0;
345 }
346
347 static void search_conf(void)
348 {
349 struct symbol **sym_arr;
350 struct gstr res;
351 char *dialog_input;
352 int dres, vscroll = 0, hscroll = 0;
353 bool again;
354
355 again:
356 dialog_clear();
357 dres = dialog_inputbox(_("Search Configuration Parameter"),
358 _("Enter " CONFIG_ " (sub)string to search for "
359 "(with or without \"" CONFIG_ "\")"),
360 10, 75, "");
361 switch (dres) {
362 case 0:
363 break;
364 case 1:
365 show_helptext(_("Search Configuration"), search_help);
366 goto again;
367 default:
368 return;
369 }
370
371 /* strip the prefix if necessary */
372 dialog_input = dialog_input_result;
373 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
374 dialog_input += strlen(CONFIG_);
375
376 sym_arr = sym_re_search(dialog_input);
377 do {
378 LIST_HEAD(head);
379 struct menu *targets[JUMP_NB];
380 int keys[JUMP_NB + 1], i;
381 struct search_data data = {
382 .head = &head,
383 .targets = targets,
384 .keys = keys,
385 };
386
387 res = get_relations_str(sym_arr, &head);
388 dres = show_textbox_ext(_("Search Results"), (char *)
389 str_get(&res), 0, 0, keys, &vscroll,
390 &hscroll, &update_text, (void *)
391 &data);
392 again = false;
393 for (i = 0; i < JUMP_NB && keys[i]; i++)
394 if (dres == keys[i]) {
395 conf(targets[i]->parent, targets[i]);
396 again = true;
397 }
398 str_free(&res);
399 } while (again);
400 free(sym_arr);
401 }
402
403 static void build_conf(struct menu *menu)
404 {
405 struct symbol *sym;
406 struct property *prop;
407 struct menu *child;
408 int type, tmp, doint = 2;
409 tristate val;
410 char ch;
411 bool visible;
412
413 /*
414 * note: menu_is_visible() has side effect that it will
415 * recalc the value of the symbol.
416 */
417 visible = menu_is_visible(menu);
418 if (show_all_options && !menu_has_prompt(menu))
419 return;
420 else if (!show_all_options && !visible)
421 return;
422
423 sym = menu->sym;
424 prop = menu->prompt;
425 if (!sym) {
426 if (prop && menu != current_menu) {
427 const char *prompt = menu_get_prompt(menu);
428 switch (prop->type) {
429 case P_MENU:
430 child_count++;
431 prompt = _(prompt);
432 if (single_menu_mode) {
433 item_make("%s%*c%s",
434 menu->data ? "-->" : "++>",
435 indent + 1, ' ', prompt);
436 } else
437 item_make(" %*c%s --->", indent + 1, ' ', prompt);
438
439 item_set_tag('m');
440 item_set_data(menu);
441 if (single_menu_mode && menu->data)
442 goto conf_childs;
443 return;
444 case P_COMMENT:
445 if (prompt) {
446 child_count++;
447 item_make(" %*c*** %s ***", indent + 1, ' ', _(prompt));
448 item_set_tag(':');
449 item_set_data(menu);
450 }
451 break;
452 default:
453 if (prompt) {
454 child_count++;
455 item_make("---%*c%s", indent + 1, ' ', _(prompt));
456 item_set_tag(':');
457 item_set_data(menu);
458 }
459 }
460 } else
461 doint = 0;
462 goto conf_childs;
463 }
464
465 type = sym_get_type(sym);
466 if (sym_is_choice(sym)) {
467 struct symbol *def_sym = sym_get_choice_value(sym);
468 struct menu *def_menu = NULL;
469
470 child_count++;
471 for (child = menu->list; child; child = child->next) {
472 if (menu_is_visible(child) && child->sym == def_sym)
473 def_menu = child;
474 }
475
476 val = sym_get_tristate_value(sym);
477 if (sym_is_changable(sym)) {
478 switch (type) {
479 case S_BOOLEAN:
480 item_make("[%c]", val == no ? ' ' : '*');
481 break;
482 case S_TRISTATE:
483 switch (val) {
484 case yes: ch = '*'; break;
485 case mod: ch = 'M'; break;
486 default: ch = ' '; break;
487 }
488 item_make("<%c>", ch);
489 break;
490 }
491 item_set_tag('t');
492 item_set_data(menu);
493 } else {
494 item_make(" ");
495 item_set_tag(def_menu ? 't' : ':');
496 item_set_data(menu);
497 }
498
499 item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
500 if (val == yes) {
501 if (def_menu) {
502 item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
503 item_add_str(" --->");
504 if (def_menu->list) {
505 indent += 2;
506 build_conf(def_menu);
507 indent -= 2;
508 }
509 }
510 return;
511 }
512 } else {
513 if (menu == current_menu) {
514 item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
515 item_set_tag(':');
516 item_set_data(menu);
517 goto conf_childs;
518 }
519 child_count++;
520 val = sym_get_tristate_value(sym);
521 if (sym_is_choice_value(sym) && val == yes) {
522 item_make(" ");
523 item_set_tag(':');
524 item_set_data(menu);
525 } else {
526 switch (type) {
527 case S_BOOLEAN:
528 if (sym_is_changable(sym))
529 item_make("[%c]", val == no ? ' ' : '*');
530 else
531 item_make("-%c-", val == no ? ' ' : '*');
532 item_set_tag('t');
533 item_set_data(menu);
534 break;
535 case S_TRISTATE:
536 switch (val) {
537 case yes: ch = '*'; break;
538 case mod: ch = 'M'; break;
539 default: ch = ' '; break;
540 }
541 if (sym_is_changable(sym)) {
542 if (sym->rev_dep.tri == mod)
543 item_make("{%c}", ch);
544 else
545 item_make("<%c>", ch);
546 } else
547 item_make("-%c-", ch);
548 item_set_tag('t');
549 item_set_data(menu);
550 break;
551 default:
552 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
553 item_make("(%s)", sym_get_string_value(sym));
554 tmp = indent - tmp + 4;
555 if (tmp < 0)
556 tmp = 0;
557 item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
558 (sym_has_value(sym) || !sym_is_changable(sym)) ?
559 "" : _(" (NEW)"));
560 item_set_tag('s');
561 item_set_data(menu);
562 goto conf_childs;
563 }
564 }
565 item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
566 (sym_has_value(sym) || !sym_is_changable(sym)) ?
567 "" : _(" (NEW)"));
568 if (menu->prompt->type == P_MENU) {
569 item_add_str(" --->");
570 return;
571 }
572 }
573
574 conf_childs:
575 indent += doint;
576 for (child = menu->list; child; child = child->next)
577 build_conf(child);
578 indent -= doint;
579 }
580
581 static void conf(struct menu *menu, struct menu *active_menu)
582 {
583 struct menu *submenu;
584 const char *prompt = menu_get_prompt(menu);
585 struct symbol *sym;
586 int res;
587 int s_scroll = 0;
588
589 while (1) {
590 item_reset();
591 current_menu = menu;
592 build_conf(menu);
593 if (!child_count)
594 break;
595 if (menu == &rootmenu) {
596 item_make("--- ");
597 item_set_tag(':');
598 item_make(_(" Load an Alternate Configuration File"));
599 item_set_tag('L');
600 item_make(_(" Save an Alternate Configuration File"));
601 item_set_tag('S');
602 }
603 dialog_clear();
604 res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
605 _(menu_instructions),
606 active_menu, &s_scroll);
607 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
608 break;
609 if (!item_activate_selected())
610 continue;
611 if (!item_tag())
612 continue;
613
614 submenu = item_data();
615 active_menu = item_data();
616 if (submenu)
617 sym = submenu->sym;
618 else
619 sym = NULL;
620
621 switch (res) {
622 case 0:
623 switch (item_tag()) {
624 case 'm':
625 if (single_menu_mode)
626 submenu->data = (void *) (long) !submenu->data;
627 else
628 conf(submenu, NULL);
629 break;
630 case 't':
631 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
632 conf_choice(submenu);
633 else if (submenu->prompt->type == P_MENU)
634 conf(submenu, NULL);
635 break;
636 case 's':
637 conf_string(submenu);
638 break;
639 case 'L':
640 conf_load();
641 break;
642 case 'S':
643 conf_save();
644 break;
645 }
646 break;
647 case 2:
648 if (sym)
649 show_help(submenu);
650 else
651 show_helptext(_("README"), _(mconf_readme));
652 break;
653 case 3:
654 if (item_is_tag('t')) {
655 if (sym_set_tristate_value(sym, yes))
656 break;
657 if (sym_set_tristate_value(sym, mod))
658 show_textbox(NULL, setmod_text, 6, 74);
659 }
660 break;
661 case 4:
662 if (item_is_tag('t'))
663 sym_set_tristate_value(sym, no);
664 break;
665 case 5:
666 if (item_is_tag('t'))
667 sym_set_tristate_value(sym, mod);
668 break;
669 case 6:
670 if (item_is_tag('t'))
671 sym_toggle_tristate_value(sym);
672 else if (item_is_tag('m'))
673 conf(submenu, NULL);
674 break;
675 case 7:
676 search_conf();
677 break;
678 case 8:
679 show_all_options = !show_all_options;
680 break;
681 }
682 }
683 }
684
685 static int show_textbox_ext(const char *title, char *text, int r, int c, int
686 *keys, int *vscroll, int *hscroll, update_text_fn
687 update_text, void *data)
688 {
689 dialog_clear();
690 return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
691 update_text, data);
692 }
693
694 static void show_textbox(const char *title, const char *text, int r, int c)
695 {
696 show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
697 NULL, NULL);
698 }
699
700 static void show_helptext(const char *title, const char *text)
701 {
702 show_textbox(title, text, 0, 0);
703 }
704
705 static void show_help(struct menu *menu)
706 {
707 struct gstr help = str_new();
708
709 help.max_width = getmaxx(stdscr) - 10;
710 menu_get_ext_help(menu, &help);
711
712 show_helptext(_(menu_get_prompt(menu)), str_get(&help));
713 str_free(&help);
714 }
715
716 static void conf_choice(struct menu *menu)
717 {
718 const char *prompt = _(menu_get_prompt(menu));
719 struct menu *child;
720 struct symbol *active;
721
722 active = sym_get_choice_value(menu->sym);
723 while (1) {
724 int res;
725 int selected;
726 item_reset();
727
728 current_menu = menu;
729 for (child = menu->list; child; child = child->next) {
730 if (!menu_is_visible(child))
731 continue;
732 if (child->sym)
733 item_make("%s", _(menu_get_prompt(child)));
734 else {
735 item_make("*** %s ***", _(menu_get_prompt(child)));
736 item_set_tag(':');
737 }
738 item_set_data(child);
739 if (child->sym == active)
740 item_set_selected(1);
741 if (child->sym == sym_get_choice_value(menu->sym))
742 item_set_tag('X');
743 }
744 dialog_clear();
745 res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
746 _(radiolist_instructions),
747 15, 70, 6);
748 selected = item_activate_selected();
749 switch (res) {
750 case 0:
751 if (selected) {
752 child = item_data();
753 if (!child->sym)
754 break;
755
756 sym_set_tristate_value(child->sym, yes);
757 }
758 return;
759 case 1:
760 if (selected) {
761 child = item_data();
762 show_help(child);
763 active = child->sym;
764 } else
765 show_help(menu);
766 break;
767 case KEY_ESC:
768 return;
769 case -ERRDISPLAYTOOSMALL:
770 return;
771 }
772 }
773 }
774
775 static void conf_string(struct menu *menu)
776 {
777 const char *prompt = menu_get_prompt(menu);
778
779 while (1) {
780 int res;
781 const char *heading;
782
783 switch (sym_get_type(menu->sym)) {
784 case S_INT:
785 heading = _(inputbox_instructions_int);
786 break;
787 case S_HEX:
788 heading = _(inputbox_instructions_hex);
789 break;
790 case S_STRING:
791 heading = _(inputbox_instructions_string);
792 break;
793 default:
794 heading = _("Internal mconf error!");
795 }
796 dialog_clear();
797 res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
798 heading, 10, 75,
799 sym_get_string_value(menu->sym));
800 switch (res) {
801 case 0:
802 if (sym_set_string_value(menu->sym, dialog_input_result))
803 return;
804 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
805 break;
806 case 1:
807 show_help(menu);
808 break;
809 case KEY_ESC:
810 return;
811 }
812 }
813 }
814
815 static void conf_load(void)
816 {
817
818 while (1) {
819 int res;
820 dialog_clear();
821 res = dialog_inputbox(NULL, load_config_text,
822 11, 55, filename);
823 switch(res) {
824 case 0:
825 if (!dialog_input_result[0])
826 return;
827 if (!conf_read(dialog_input_result)) {
828 set_config_filename(dialog_input_result);
829 sym_set_change_count(1);
830 return;
831 }
832 show_textbox(NULL, _("File does not exist!"), 5, 38);
833 break;
834 case 1:
835 show_helptext(_("Load Alternate Configuration"), load_config_help);
836 break;
837 case KEY_ESC:
838 return;
839 }
840 }
841 }
842
843 static void conf_save(void)
844 {
845 while (1) {
846 int res;
847 dialog_clear();
848 res = dialog_inputbox(NULL, save_config_text,
849 11, 55, filename);
850 switch(res) {
851 case 0:
852 if (!dialog_input_result[0])
853 return;
854 if (!conf_write(dialog_input_result)) {
855 set_config_filename(dialog_input_result);
856 return;
857 }
858 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
859 break;
860 case 1:
861 show_helptext(_("Save Alternate Configuration"), save_config_help);
862 break;
863 case KEY_ESC:
864 return;
865 }
866 }
867 }
868
869 static int handle_exit(void)
870 {
871 int res;
872
873 dialog_clear();
874 if (conf_get_changed())
875 res = dialog_yesno(NULL,
876 _("Do you wish to save your new configuration ?\n"
877 "<ESC><ESC> to continue."),
878 6, 60);
879 else
880 res = -1;
881
882 end_dialog(saved_x, saved_y);
883
884 switch (res) {
885 case 0:
886 if (conf_write(filename)) {
887 fprintf(stderr, _("\n\n"
888 "Error while writing of the configuration.\n"
889 "Your configuration changes were NOT saved."
890 "\n\n"));
891 return 1;
892 }
893 /* fall through */
894 case -1:
895 printf(_("\n\n"
896 "*** End of the configuration.\n"
897 "*** Execute 'make' to start the build or try 'make help'."
898 "\n\n"));
899 res = 0;
900 break;
901 default:
902 fprintf(stderr, _("\n\n"
903 "Your configuration changes were NOT saved."
904 "\n\n"));
905 if (res != KEY_ESC)
906 res = 0;
907 }
908
909 return res;
910 }
911
912 static void sig_handler(int signo)
913 {
914 exit(handle_exit());
915 }
916
917 int main(int ac, char **av)
918 {
919 char *mode;
920 int res;
921
922 setlocale(LC_ALL, "");
923 bindtextdomain(PACKAGE, LOCALEDIR);
924 textdomain(PACKAGE);
925
926 signal(SIGINT, sig_handler);
927
928 conf_parse(av[1]);
929 conf_read(NULL);
930
931 mode = getenv("MENUCONFIG_MODE");
932 if (mode) {
933 if (!strcasecmp(mode, "single_menu"))
934 single_menu_mode = 1;
935 }
936
937 if (init_dialog(NULL)) {
938 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
939 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
940 return 1;
941 }
942
943 set_config_filename(conf_get_configname());
944 do {
945 conf(&rootmenu, NULL);
946 res = handle_exit();
947 } while (res == KEY_ESC);
948
949 return res;
950 }
951
Linux with added FPC-III support