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Linux 4.12-rc3
[linux/fpc-iii.git] / scripts / kconfig / nconf.gui.c
blob4b2f44c20caf8941d150f261074b40d589a10376
1 /*
2 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
3 * Released under the terms of the GNU GPL v2.0.
4 *
5 * Derived from menuconfig.
6 *
7 */
8 #include "nconf.h"
9
10 /* a list of all the different widgets we use */
11 attributes_t attributes[ATTR_MAX+1] = {0};
12
13 /* available colors:
14 COLOR_BLACK 0
15 COLOR_RED 1
16 COLOR_GREEN 2
17 COLOR_YELLOW 3
18 COLOR_BLUE 4
19 COLOR_MAGENTA 5
20 COLOR_CYAN 6
21 COLOR_WHITE 7
22 */
23 static void set_normal_colors(void)
24 {
25 init_pair(NORMAL, -1, -1);
26 init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
27
28 /* FORE is for the selected item */
29 init_pair(MAIN_MENU_FORE, -1, -1);
30 /* BACK for all the rest */
31 init_pair(MAIN_MENU_BACK, -1, -1);
32 init_pair(MAIN_MENU_GREY, -1, -1);
33 init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
34 init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);
35
36 init_pair(SCROLLWIN_TEXT, -1, -1);
37 init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
38 init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
39
40 init_pair(DIALOG_TEXT, -1, -1);
41 init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
42 init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
43 init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);
44
45 init_pair(INPUT_BOX, COLOR_YELLOW, -1);
46 init_pair(INPUT_HEADING, COLOR_GREEN, -1);
47 init_pair(INPUT_TEXT, -1, -1);
48 init_pair(INPUT_FIELD, -1, -1);
49
50 init_pair(FUNCTION_HIGHLIGHT, -1, -1);
51 init_pair(FUNCTION_TEXT, COLOR_YELLOW, -1);
52 }
53
54 /* available attributes:
55 A_NORMAL Normal display (no highlight)
56 A_STANDOUT Best highlighting mode of the terminal.
57 A_UNDERLINE Underlining
58 A_REVERSE Reverse video
59 A_BLINK Blinking
60 A_DIM Half bright
61 A_BOLD Extra bright or bold
62 A_PROTECT Protected mode
63 A_INVIS Invisible or blank mode
64 A_ALTCHARSET Alternate character set
65 A_CHARTEXT Bit-mask to extract a character
66 COLOR_PAIR(n) Color-pair number n
67 */
68 static void normal_color_theme(void)
69 {
70 /* automatically add color... */
71 #define mkattr(name, attr) do { \
72 attributes[name] = attr | COLOR_PAIR(name); } while (0)
73 mkattr(NORMAL, NORMAL);
74 mkattr(MAIN_HEADING, A_BOLD | A_UNDERLINE);
75
76 mkattr(MAIN_MENU_FORE, A_REVERSE);
77 mkattr(MAIN_MENU_BACK, A_NORMAL);
78 mkattr(MAIN_MENU_GREY, A_NORMAL);
79 mkattr(MAIN_MENU_HEADING, A_BOLD);
80 mkattr(MAIN_MENU_BOX, A_NORMAL);
81
82 mkattr(SCROLLWIN_TEXT, A_NORMAL);
83 mkattr(SCROLLWIN_HEADING, A_BOLD);
84 mkattr(SCROLLWIN_BOX, A_BOLD);
85
86 mkattr(DIALOG_TEXT, A_BOLD);
87 mkattr(DIALOG_BOX, A_BOLD);
88 mkattr(DIALOG_MENU_FORE, A_STANDOUT);
89 mkattr(DIALOG_MENU_BACK, A_NORMAL);
90
91 mkattr(INPUT_BOX, A_NORMAL);
92 mkattr(INPUT_HEADING, A_BOLD);
93 mkattr(INPUT_TEXT, A_NORMAL);
94 mkattr(INPUT_FIELD, A_UNDERLINE);
95
96 mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
97 mkattr(FUNCTION_TEXT, A_REVERSE);
98 }
99
100 static void no_colors_theme(void)
101 {
102 /* automatically add highlight, no color */
103 #define mkattrn(name, attr) { attributes[name] = attr; }
104
105 mkattrn(NORMAL, NORMAL);
106 mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);
107
108 mkattrn(MAIN_MENU_FORE, A_STANDOUT);
109 mkattrn(MAIN_MENU_BACK, A_NORMAL);
110 mkattrn(MAIN_MENU_GREY, A_NORMAL);
111 mkattrn(MAIN_MENU_HEADING, A_BOLD);
112 mkattrn(MAIN_MENU_BOX, A_NORMAL);
113
114 mkattrn(SCROLLWIN_TEXT, A_NORMAL);
115 mkattrn(SCROLLWIN_HEADING, A_BOLD);
116 mkattrn(SCROLLWIN_BOX, A_BOLD);
117
118 mkattrn(DIALOG_TEXT, A_NORMAL);
119 mkattrn(DIALOG_BOX, A_BOLD);
120 mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
121 mkattrn(DIALOG_MENU_BACK, A_NORMAL);
122
123 mkattrn(INPUT_BOX, A_BOLD);
124 mkattrn(INPUT_HEADING, A_BOLD);
125 mkattrn(INPUT_TEXT, A_NORMAL);
126 mkattrn(INPUT_FIELD, A_UNDERLINE);
127
128 mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
129 mkattrn(FUNCTION_TEXT, A_REVERSE);
130 }
131
132 void set_colors()
133 {
134 start_color();
135 use_default_colors();
136 set_normal_colors();
137 if (has_colors()) {
138 normal_color_theme();
139 } else {
140 /* give defaults */
141 no_colors_theme();
142 }
143 }
144
145
146 /* this changes the windows attributes !!! */
147 void print_in_middle(WINDOW *win,
148 int starty,
149 int startx,
150 int width,
151 const char *string,
152 chtype color)
153 { int length, x, y;
154 float temp;
155
156
157 if (win == NULL)
158 win = stdscr;
159 getyx(win, y, x);
160 if (startx != 0)
161 x = startx;
162 if (starty != 0)
163 y = starty;
164 if (width == 0)
165 width = 80;
166
167 length = strlen(string);
168 temp = (width - length) / 2;
169 x = startx + (int)temp;
170 (void) wattrset(win, color);
171 mvwprintw(win, y, x, "%s", string);
172 refresh();
173 }
174
175 int get_line_no(const char *text)
176 {
177 int i;
178 int total = 1;
179
180 if (!text)
181 return 0;
182
183 for (i = 0; text[i] != '\0'; i++)
184 if (text[i] == '\n')
185 total++;
186 return total;
187 }
188
189 const char *get_line(const char *text, int line_no)
190 {
191 int i;
192 int lines = 0;
193
194 if (!text)
195 return 0;
196
197 for (i = 0; text[i] != '\0' && lines < line_no; i++)
198 if (text[i] == '\n')
199 lines++;
200 return text+i;
201 }
202
203 int get_line_length(const char *line)
204 {
205 int res = 0;
206 while (*line != '\0' && *line != '\n') {
207 line++;
208 res++;
209 }
210 return res;
211 }
212
213 /* print all lines to the window. */
214 void fill_window(WINDOW *win, const char *text)
215 {
216 int x, y;
217 int total_lines = get_line_no(text);
218 int i;
219
220 getmaxyx(win, y, x);
221 /* do not go over end of line */
222 total_lines = min(total_lines, y);
223 for (i = 0; i < total_lines; i++) {
224 char tmp[x+10];
225 const char *line = get_line(text, i);
226 int len = get_line_length(line);
227 strncpy(tmp, line, min(len, x));
228 tmp[len] = '\0';
229 mvwprintw(win, i, 0, "%s", tmp);
230 }
231 }
232
233 /* get the message, and buttons.
234 * each button must be a char*
235 * return the selected button
236 *
237 * this dialog is used for 2 different things:
238 * 1) show a text box, no buttons.
239 * 2) show a dialog, with horizontal buttons
240 */
241 int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
242 {
243 va_list ap;
244 char *btn;
245 int btns_width = 0;
246 int msg_lines = 0;
247 int msg_width = 0;
248 int total_width;
249 int win_rows = 0;
250 WINDOW *win;
251 WINDOW *msg_win;
252 WINDOW *menu_win;
253 MENU *menu;
254 ITEM *btns[btn_num+1];
255 int i, x, y;
256 int res = -1;
257
258
259 va_start(ap, btn_num);
260 for (i = 0; i < btn_num; i++) {
261 btn = va_arg(ap, char *);
262 btns[i] = new_item(btn, "");
263 btns_width += strlen(btn)+1;
264 }
265 va_end(ap);
266 btns[btn_num] = NULL;
267
268 /* find the widest line of msg: */
269 msg_lines = get_line_no(msg);
270 for (i = 0; i < msg_lines; i++) {
271 const char *line = get_line(msg, i);
272 int len = get_line_length(line);
273 if (msg_width < len)
274 msg_width = len;
275 }
276
277 total_width = max(msg_width, btns_width);
278 /* place dialog in middle of screen */
279 y = (getmaxy(stdscr)-(msg_lines+4))/2;
280 x = (getmaxx(stdscr)-(total_width+4))/2;
281
282
283 /* create the windows */
284 if (btn_num > 0)
285 win_rows = msg_lines+4;
286 else
287 win_rows = msg_lines+2;
288
289 win = newwin(win_rows, total_width+4, y, x);
290 keypad(win, TRUE);
291 menu_win = derwin(win, 1, btns_width, win_rows-2,
292 1+(total_width+2-btns_width)/2);
293 menu = new_menu(btns);
294 msg_win = derwin(win, win_rows-2, msg_width, 1,
295 1+(total_width+2-msg_width)/2);
296
297 set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
298 set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
299
300 (void) wattrset(win, attributes[DIALOG_BOX]);
301 box(win, 0, 0);
302
303 /* print message */
304 (void) wattrset(msg_win, attributes[DIALOG_TEXT]);
305 fill_window(msg_win, msg);
306
307 set_menu_win(menu, win);
308 set_menu_sub(menu, menu_win);
309 set_menu_format(menu, 1, btn_num);
310 menu_opts_off(menu, O_SHOWDESC);
311 menu_opts_off(menu, O_SHOWMATCH);
312 menu_opts_on(menu, O_ONEVALUE);
313 menu_opts_on(menu, O_NONCYCLIC);
314 set_menu_mark(menu, "");
315 post_menu(menu);
316
317
318 touchwin(win);
319 refresh_all_windows(main_window);
320 while ((res = wgetch(win))) {
321 switch (res) {
322 case KEY_LEFT:
323 menu_driver(menu, REQ_LEFT_ITEM);
324 break;
325 case KEY_RIGHT:
326 menu_driver(menu, REQ_RIGHT_ITEM);
327 break;
328 case 10: /* ENTER */
329 case 27: /* ESCAPE */
330 case ' ':
331 case KEY_F(F_BACK):
332 case KEY_F(F_EXIT):
333 break;
334 }
335 touchwin(win);
336 refresh_all_windows(main_window);
337
338 if (res == 10 || res == ' ') {
339 res = item_index(current_item(menu));
340 break;
341 } else if (res == 27 || res == KEY_F(F_BACK) ||
342 res == KEY_F(F_EXIT)) {
343 res = KEY_EXIT;
344 break;
345 }
346 }
347
348 unpost_menu(menu);
349 free_menu(menu);
350 for (i = 0; i < btn_num; i++)
351 free_item(btns[i]);
352
353 delwin(win);
354 return res;
355 }
356
357 int dialog_inputbox(WINDOW *main_window,
358 const char *title, const char *prompt,
359 const char *init, char **resultp, int *result_len)
360 {
361 int prompt_lines = 0;
362 int prompt_width = 0;
363 WINDOW *win;
364 WINDOW *prompt_win;
365 WINDOW *form_win;
366 PANEL *panel;
367 int i, x, y, lines, columns, win_lines, win_cols;
368 int res = -1;
369 int cursor_position = strlen(init);
370 int cursor_form_win;
371 char *result = *resultp;
372
373 getmaxyx(stdscr, lines, columns);
374
375 if (strlen(init)+1 > *result_len) {
376 *result_len = strlen(init)+1;
377 *resultp = result = realloc(result, *result_len);
378 }
379
380 /* find the widest line of msg: */
381 prompt_lines = get_line_no(prompt);
382 for (i = 0; i < prompt_lines; i++) {
383 const char *line = get_line(prompt, i);
384 int len = get_line_length(line);
385 prompt_width = max(prompt_width, len);
386 }
387
388 if (title)
389 prompt_width = max(prompt_width, strlen(title));
390
391 win_lines = min(prompt_lines+6, lines-2);
392 win_cols = min(prompt_width+7, columns-2);
393 prompt_lines = max(win_lines-6, 0);
394 prompt_width = max(win_cols-7, 0);
395
396 /* place dialog in middle of screen */
397 y = (lines-win_lines)/2;
398 x = (columns-win_cols)/2;
399
400 strncpy(result, init, *result_len);
401
402 /* create the windows */
403 win = newwin(win_lines, win_cols, y, x);
404 prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
405 form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
406 keypad(form_win, TRUE);
407
408 (void) wattrset(form_win, attributes[INPUT_FIELD]);
409
410 (void) wattrset(win, attributes[INPUT_BOX]);
411 box(win, 0, 0);
412 (void) wattrset(win, attributes[INPUT_HEADING]);
413 if (title)
414 mvwprintw(win, 0, 3, "%s", title);
415
416 /* print message */
417 (void) wattrset(prompt_win, attributes[INPUT_TEXT]);
418 fill_window(prompt_win, prompt);
419
420 mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
421 cursor_form_win = min(cursor_position, prompt_width-1);
422 mvwprintw(form_win, 0, 0, "%s",
423 result + cursor_position-cursor_form_win);
424
425 /* create panels */
426 panel = new_panel(win);
427
428 /* show the cursor */
429 curs_set(1);
430
431 touchwin(win);
432 refresh_all_windows(main_window);
433 while ((res = wgetch(form_win))) {
434 int len = strlen(result);
435 switch (res) {
436 case 10: /* ENTER */
437 case 27: /* ESCAPE */
438 case KEY_F(F_HELP):
439 case KEY_F(F_EXIT):
440 case KEY_F(F_BACK):
441 break;
442 case 127:
443 case KEY_BACKSPACE:
444 if (cursor_position > 0) {
445 memmove(&result[cursor_position-1],
446 &result[cursor_position],
447 len-cursor_position+1);
448 cursor_position--;
449 cursor_form_win--;
450 len--;
451 }
452 break;
453 case KEY_DC:
454 if (cursor_position >= 0 && cursor_position < len) {
455 memmove(&result[cursor_position],
456 &result[cursor_position+1],
457 len-cursor_position+1);
458 len--;
459 }
460 break;
461 case KEY_UP:
462 case KEY_RIGHT:
463 if (cursor_position < len) {
464 cursor_position++;
465 cursor_form_win++;
466 }
467 break;
468 case KEY_DOWN:
469 case KEY_LEFT:
470 if (cursor_position > 0) {
471 cursor_position--;
472 cursor_form_win--;
473 }
474 break;
475 case KEY_HOME:
476 cursor_position = 0;
477 cursor_form_win = 0;
478 break;
479 case KEY_END:
480 cursor_position = len;
481 cursor_form_win = min(cursor_position, prompt_width-1);
482 break;
483 default:
484 if ((isgraph(res) || isspace(res))) {
485 /* one for new char, one for '\0' */
486 if (len+2 > *result_len) {
487 *result_len = len+2;
488 *resultp = result = realloc(result,
489 *result_len);
490 }
491 /* insert the char at the proper position */
492 memmove(&result[cursor_position+1],
493 &result[cursor_position],
494 len-cursor_position+1);
495 result[cursor_position] = res;
496 cursor_position++;
497 cursor_form_win++;
498 len++;
499 } else {
500 mvprintw(0, 0, "unknown key: %d\n", res);
501 }
502 break;
503 }
504 if (cursor_form_win < 0)
505 cursor_form_win = 0;
506 else if (cursor_form_win > prompt_width-1)
507 cursor_form_win = prompt_width-1;
508
509 wmove(form_win, 0, 0);
510 wclrtoeol(form_win);
511 mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
512 mvwprintw(form_win, 0, 0, "%s",
513 result + cursor_position-cursor_form_win);
514 wmove(form_win, 0, cursor_form_win);
515 touchwin(win);
516 refresh_all_windows(main_window);
517
518 if (res == 10) {
519 res = 0;
520 break;
521 } else if (res == 27 || res == KEY_F(F_BACK) ||
522 res == KEY_F(F_EXIT)) {
523 res = KEY_EXIT;
524 break;
525 } else if (res == KEY_F(F_HELP)) {
526 res = 1;
527 break;
528 }
529 }
530
531 /* hide the cursor */
532 curs_set(0);
533 del_panel(panel);
534 delwin(prompt_win);
535 delwin(form_win);
536 delwin(win);
537 return res;
538 }
539
540 /* refresh all windows in the correct order */
541 void refresh_all_windows(WINDOW *main_window)
542 {
543 update_panels();
544 touchwin(main_window);
545 refresh();
546 }
547
548 /* layman's scrollable window... */
549 void show_scroll_win(WINDOW *main_window,
550 const char *title,
551 const char *text)
552 {
553 int res;
554 int total_lines = get_line_no(text);
555 int x, y, lines, columns;
556 int start_x = 0, start_y = 0;
557 int text_lines = 0, text_cols = 0;
558 int total_cols = 0;
559 int win_cols = 0;
560 int win_lines = 0;
561 int i = 0;
562 WINDOW *win;
563 WINDOW *pad;
564 PANEL *panel;
565
566 getmaxyx(stdscr, lines, columns);
567
568 /* find the widest line of msg: */
569 total_lines = get_line_no(text);
570 for (i = 0; i < total_lines; i++) {
571 const char *line = get_line(text, i);
572 int len = get_line_length(line);
573 total_cols = max(total_cols, len+2);
574 }
575
576 /* create the pad */
577 pad = newpad(total_lines+10, total_cols+10);
578 (void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
579 fill_window(pad, text);
580
581 win_lines = min(total_lines+4, lines-2);
582 win_cols = min(total_cols+2, columns-2);
583 text_lines = max(win_lines-4, 0);
584 text_cols = max(win_cols-2, 0);
585
586 /* place window in middle of screen */
587 y = (lines-win_lines)/2;
588 x = (columns-win_cols)/2;
589
590 win = newwin(win_lines, win_cols, y, x);
591 keypad(win, TRUE);
592 /* show the help in the help window, and show the help panel */
593 (void) wattrset(win, attributes[SCROLLWIN_BOX]);
594 box(win, 0, 0);
595 (void) wattrset(win, attributes[SCROLLWIN_HEADING]);
596 mvwprintw(win, 0, 3, " %s ", title);
597 panel = new_panel(win);
598
599 /* handle scrolling */
600 do {
601
602 copywin(pad, win, start_y, start_x, 2, 2, text_lines,
603 text_cols, 0);
604 print_in_middle(win,
605 text_lines+2,
606 0,
607 text_cols,
608 "<OK>",
609 attributes[DIALOG_MENU_FORE]);
610 wrefresh(win);
611
612 res = wgetch(win);
613 switch (res) {
614 case KEY_NPAGE:
615 case ' ':
616 case 'd':
617 start_y += text_lines-2;
618 break;
619 case KEY_PPAGE:
620 case 'u':
621 start_y -= text_lines+2;
622 break;
623 case KEY_HOME:
624 start_y = 0;
625 break;
626 case KEY_END:
627 start_y = total_lines-text_lines;
628 break;
629 case KEY_DOWN:
630 case 'j':
631 start_y++;
632 break;
633 case KEY_UP:
634 case 'k':
635 start_y--;
636 break;
637 case KEY_LEFT:
638 case 'h':
639 start_x--;
640 break;
641 case KEY_RIGHT:
642 case 'l':
643 start_x++;
644 break;
645 }
646 if (res == 10 || res == 27 || res == 'q' ||
647 res == KEY_F(F_HELP) || res == KEY_F(F_BACK) ||
648 res == KEY_F(F_EXIT))
649 break;
650 if (start_y < 0)
651 start_y = 0;
652 if (start_y >= total_lines-text_lines)
653 start_y = total_lines-text_lines;
654 if (start_x < 0)
655 start_x = 0;
656 if (start_x >= total_cols-text_cols)
657 start_x = total_cols-text_cols;
658 } while (res);
659
660 del_panel(panel);
661 delwin(win);
662 refresh_all_windows(main_window);
663 }
Linux with added FPC-III support