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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / scripts / kconfig / nconf.gui.c
blob88874acfda3670afe03fd73c3e17c9cf56b0a569
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 #include "lkc.h"
10
11 /* a list of all the different widgets we use */
12 attributes_t attributes[ATTR_MAX+1] = {0};
13
14 /* available colors:
15 COLOR_BLACK 0
16 COLOR_RED 1
17 COLOR_GREEN 2
18 COLOR_YELLOW 3
19 COLOR_BLUE 4
20 COLOR_MAGENTA 5
21 COLOR_CYAN 6
22 COLOR_WHITE 7
23 */
24 static void set_normal_colors(void)
25 {
26 init_pair(NORMAL, -1, -1);
27 init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
28
29 /* FORE is for the selected item */
30 init_pair(MAIN_MENU_FORE, -1, -1);
31 /* BACK for all the rest */
32 init_pair(MAIN_MENU_BACK, -1, -1);
33 init_pair(MAIN_MENU_GREY, -1, -1);
34 init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
35 init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);
36
37 init_pair(SCROLLWIN_TEXT, -1, -1);
38 init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
39 init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
40
41 init_pair(DIALOG_TEXT, -1, -1);
42 init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
43 init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
44 init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);
45
46 init_pair(INPUT_BOX, COLOR_YELLOW, -1);
47 init_pair(INPUT_HEADING, COLOR_GREEN, -1);
48 init_pair(INPUT_TEXT, -1, -1);
49 init_pair(INPUT_FIELD, -1, -1);
50
51 init_pair(FUNCTION_HIGHLIGHT, -1, -1);
52 init_pair(FUNCTION_TEXT, COLOR_YELLOW, -1);
53 }
54
55 /* available attributes:
56 A_NORMAL Normal display (no highlight)
57 A_STANDOUT Best highlighting mode of the terminal.
58 A_UNDERLINE Underlining
59 A_REVERSE Reverse video
60 A_BLINK Blinking
61 A_DIM Half bright
62 A_BOLD Extra bright or bold
63 A_PROTECT Protected mode
64 A_INVIS Invisible or blank mode
65 A_ALTCHARSET Alternate character set
66 A_CHARTEXT Bit-mask to extract a character
67 COLOR_PAIR(n) Color-pair number n
68 */
69 static void normal_color_theme(void)
70 {
71 /* automatically add color... */
72 #define mkattr(name, attr) do { \
73 attributes[name] = attr | COLOR_PAIR(name); } while (0)
74 mkattr(NORMAL, NORMAL);
75 mkattr(MAIN_HEADING, A_BOLD | A_UNDERLINE);
76
77 mkattr(MAIN_MENU_FORE, A_REVERSE);
78 mkattr(MAIN_MENU_BACK, A_NORMAL);
79 mkattr(MAIN_MENU_GREY, A_NORMAL);
80 mkattr(MAIN_MENU_HEADING, A_BOLD);
81 mkattr(MAIN_MENU_BOX, A_NORMAL);
82
83 mkattr(SCROLLWIN_TEXT, A_NORMAL);
84 mkattr(SCROLLWIN_HEADING, A_BOLD);
85 mkattr(SCROLLWIN_BOX, A_BOLD);
86
87 mkattr(DIALOG_TEXT, A_BOLD);
88 mkattr(DIALOG_BOX, A_BOLD);
89 mkattr(DIALOG_MENU_FORE, A_STANDOUT);
90 mkattr(DIALOG_MENU_BACK, A_NORMAL);
91
92 mkattr(INPUT_BOX, A_NORMAL);
93 mkattr(INPUT_HEADING, A_BOLD);
94 mkattr(INPUT_TEXT, A_NORMAL);
95 mkattr(INPUT_FIELD, A_UNDERLINE);
96
97 mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
98 mkattr(FUNCTION_TEXT, A_REVERSE);
99 }
100
101 static void no_colors_theme(void)
102 {
103 /* automatically add highlight, no color */
104 #define mkattrn(name, attr) { attributes[name] = attr; }
105
106 mkattrn(NORMAL, NORMAL);
107 mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);
108
109 mkattrn(MAIN_MENU_FORE, A_STANDOUT);
110 mkattrn(MAIN_MENU_BACK, A_NORMAL);
111 mkattrn(MAIN_MENU_GREY, A_NORMAL);
112 mkattrn(MAIN_MENU_HEADING, A_BOLD);
113 mkattrn(MAIN_MENU_BOX, A_NORMAL);
114
115 mkattrn(SCROLLWIN_TEXT, A_NORMAL);
116 mkattrn(SCROLLWIN_HEADING, A_BOLD);
117 mkattrn(SCROLLWIN_BOX, A_BOLD);
118
119 mkattrn(DIALOG_TEXT, A_NORMAL);
120 mkattrn(DIALOG_BOX, A_BOLD);
121 mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
122 mkattrn(DIALOG_MENU_BACK, A_NORMAL);
123
124 mkattrn(INPUT_BOX, A_BOLD);
125 mkattrn(INPUT_HEADING, A_BOLD);
126 mkattrn(INPUT_TEXT, A_NORMAL);
127 mkattrn(INPUT_FIELD, A_UNDERLINE);
128
129 mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
130 mkattrn(FUNCTION_TEXT, A_REVERSE);
131 }
132
133 void set_colors(void)
134 {
135 start_color();
136 use_default_colors();
137 set_normal_colors();
138 if (has_colors()) {
139 normal_color_theme();
140 } else {
141 /* give defaults */
142 no_colors_theme();
143 }
144 }
145
146
147 /* this changes the windows attributes !!! */
148 void print_in_middle(WINDOW *win,
149 int starty,
150 int startx,
151 int width,
152 const char *string,
153 chtype color)
154 { int length, x, y;
155 float temp;
156
157
158 if (win == NULL)
159 win = stdscr;
160 getyx(win, y, x);
161 if (startx != 0)
162 x = startx;
163 if (starty != 0)
164 y = starty;
165 if (width == 0)
166 width = 80;
167
168 length = strlen(string);
169 temp = (width - length) / 2;
170 x = startx + (int)temp;
171 (void) wattrset(win, color);
172 mvwprintw(win, y, x, "%s", string);
173 refresh();
174 }
175
176 int get_line_no(const char *text)
177 {
178 int i;
179 int total = 1;
180
181 if (!text)
182 return 0;
183
184 for (i = 0; text[i] != '\0'; i++)
185 if (text[i] == '\n')
186 total++;
187 return total;
188 }
189
190 const char *get_line(const char *text, int line_no)
191 {
192 int i;
193 int lines = 0;
194
195 if (!text)
196 return NULL;
197
198 for (i = 0; text[i] != '\0' && lines < line_no; i++)
199 if (text[i] == '\n')
200 lines++;
201 return text+i;
202 }
203
204 int get_line_length(const char *line)
205 {
206 int res = 0;
207 while (*line != '\0' && *line != '\n') {
208 line++;
209 res++;
210 }
211 return res;
212 }
213
214 /* print all lines to the window. */
215 void fill_window(WINDOW *win, const char *text)
216 {
217 int x, y;
218 int total_lines = get_line_no(text);
219 int i;
220
221 getmaxyx(win, y, x);
222 /* do not go over end of line */
223 total_lines = min(total_lines, y);
224 for (i = 0; i < total_lines; i++) {
225 char tmp[x+10];
226 const char *line = get_line(text, i);
227 int len = get_line_length(line);
228 strncpy(tmp, line, min(len, x));
229 tmp[len] = '\0';
230 mvwprintw(win, i, 0, "%s", tmp);
231 }
232 }
233
234 /* get the message, and buttons.
235 * each button must be a char*
236 * return the selected button
237 *
238 * this dialog is used for 2 different things:
239 * 1) show a text box, no buttons.
240 * 2) show a dialog, with horizontal buttons
241 */
242 int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
243 {
244 va_list ap;
245 char *btn;
246 int btns_width = 0;
247 int msg_lines = 0;
248 int msg_width = 0;
249 int total_width;
250 int win_rows = 0;
251 WINDOW *win;
252 WINDOW *msg_win;
253 WINDOW *menu_win;
254 MENU *menu;
255 ITEM *btns[btn_num+1];
256 int i, x, y;
257 int res = -1;
258
259
260 va_start(ap, btn_num);
261 for (i = 0; i < btn_num; i++) {
262 btn = va_arg(ap, char *);
263 btns[i] = new_item(btn, "");
264 btns_width += strlen(btn)+1;
265 }
266 va_end(ap);
267 btns[btn_num] = NULL;
268
269 /* find the widest line of msg: */
270 msg_lines = get_line_no(msg);
271 for (i = 0; i < msg_lines; i++) {
272 const char *line = get_line(msg, i);
273 int len = get_line_length(line);
274 if (msg_width < len)
275 msg_width = len;
276 }
277
278 total_width = max(msg_width, btns_width);
279 /* place dialog in middle of screen */
280 y = (getmaxy(stdscr)-(msg_lines+4))/2;
281 x = (getmaxx(stdscr)-(total_width+4))/2;
282
283
284 /* create the windows */
285 if (btn_num > 0)
286 win_rows = msg_lines+4;
287 else
288 win_rows = msg_lines+2;
289
290 win = newwin(win_rows, total_width+4, y, x);
291 keypad(win, TRUE);
292 menu_win = derwin(win, 1, btns_width, win_rows-2,
293 1+(total_width+2-btns_width)/2);
294 menu = new_menu(btns);
295 msg_win = derwin(win, win_rows-2, msg_width, 1,
296 1+(total_width+2-msg_width)/2);
297
298 set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
299 set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
300
301 (void) wattrset(win, attributes[DIALOG_BOX]);
302 box(win, 0, 0);
303
304 /* print message */
305 (void) wattrset(msg_win, attributes[DIALOG_TEXT]);
306 fill_window(msg_win, msg);
307
308 set_menu_win(menu, win);
309 set_menu_sub(menu, menu_win);
310 set_menu_format(menu, 1, btn_num);
311 menu_opts_off(menu, O_SHOWDESC);
312 menu_opts_off(menu, O_SHOWMATCH);
313 menu_opts_on(menu, O_ONEVALUE);
314 menu_opts_on(menu, O_NONCYCLIC);
315 set_menu_mark(menu, "");
316 post_menu(menu);
317
318
319 touchwin(win);
320 refresh_all_windows(main_window);
321 while ((res = wgetch(win))) {
322 switch (res) {
323 case KEY_LEFT:
324 menu_driver(menu, REQ_LEFT_ITEM);
325 break;
326 case KEY_RIGHT:
327 menu_driver(menu, REQ_RIGHT_ITEM);
328 break;
329 case 10: /* ENTER */
330 case 27: /* ESCAPE */
331 case ' ':
332 case KEY_F(F_BACK):
333 case KEY_F(F_EXIT):
334 break;
335 }
336 touchwin(win);
337 refresh_all_windows(main_window);
338
339 if (res == 10 || res == ' ') {
340 res = item_index(current_item(menu));
341 break;
342 } else if (res == 27 || res == KEY_F(F_BACK) ||
343 res == KEY_F(F_EXIT)) {
344 res = KEY_EXIT;
345 break;
346 }
347 }
348
349 unpost_menu(menu);
350 free_menu(menu);
351 for (i = 0; i < btn_num; i++)
352 free_item(btns[i]);
353
354 delwin(win);
355 return res;
356 }
357
358 int dialog_inputbox(WINDOW *main_window,
359 const char *title, const char *prompt,
360 const char *init, char **resultp, int *result_len)
361 {
362 int prompt_lines = 0;
363 int prompt_width = 0;
364 WINDOW *win;
365 WINDOW *prompt_win;
366 WINDOW *form_win;
367 PANEL *panel;
368 int i, x, y, lines, columns, win_lines, win_cols;
369 int res = -1;
370 int cursor_position = strlen(init);
371 int cursor_form_win;
372 char *result = *resultp;
373
374 getmaxyx(stdscr, lines, columns);
375
376 if (strlen(init)+1 > *result_len) {
377 *result_len = strlen(init)+1;
378 *resultp = result = xrealloc(result, *result_len);
379 }
380
381 /* find the widest line of msg: */
382 prompt_lines = get_line_no(prompt);
383 for (i = 0; i < prompt_lines; i++) {
384 const char *line = get_line(prompt, i);
385 int len = get_line_length(line);
386 prompt_width = max(prompt_width, len);
387 }
388
389 if (title)
390 prompt_width = max(prompt_width, strlen(title));
391
392 win_lines = min(prompt_lines+6, lines-2);
393 win_cols = min(prompt_width+7, columns-2);
394 prompt_lines = max(win_lines-6, 0);
395 prompt_width = max(win_cols-7, 0);
396
397 /* place dialog in middle of screen */
398 y = (lines-win_lines)/2;
399 x = (columns-win_cols)/2;
400
401 strncpy(result, init, *result_len);
402
403 /* create the windows */
404 win = newwin(win_lines, win_cols, y, x);
405 prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
406 form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
407 keypad(form_win, TRUE);
408
409 (void) wattrset(form_win, attributes[INPUT_FIELD]);
410
411 (void) wattrset(win, attributes[INPUT_BOX]);
412 box(win, 0, 0);
413 (void) wattrset(win, attributes[INPUT_HEADING]);
414 if (title)
415 mvwprintw(win, 0, 3, "%s", title);
416
417 /* print message */
418 (void) wattrset(prompt_win, attributes[INPUT_TEXT]);
419 fill_window(prompt_win, prompt);
420
421 mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
422 cursor_form_win = min(cursor_position, prompt_width-1);
423 mvwprintw(form_win, 0, 0, "%s",
424 result + cursor_position-cursor_form_win);
425
426 /* create panels */
427 panel = new_panel(win);
428
429 /* show the cursor */
430 curs_set(1);
431
432 touchwin(win);
433 refresh_all_windows(main_window);
434 while ((res = wgetch(form_win))) {
435 int len = strlen(result);
436 switch (res) {
437 case 10: /* ENTER */
438 case 27: /* ESCAPE */
439 case KEY_F(F_HELP):
440 case KEY_F(F_EXIT):
441 case KEY_F(F_BACK):
442 break;
443 case 127:
444 case KEY_BACKSPACE:
445 if (cursor_position > 0) {
446 memmove(&result[cursor_position-1],
447 &result[cursor_position],
448 len-cursor_position+1);
449 cursor_position--;
450 cursor_form_win--;
451 len--;
452 }
453 break;
454 case KEY_DC:
455 if (cursor_position >= 0 && cursor_position < len) {
456 memmove(&result[cursor_position],
457 &result[cursor_position+1],
458 len-cursor_position+1);
459 len--;
460 }
461 break;
462 case KEY_UP:
463 case KEY_RIGHT:
464 if (cursor_position < len) {
465 cursor_position++;
466 cursor_form_win++;
467 }
468 break;
469 case KEY_DOWN:
470 case KEY_LEFT:
471 if (cursor_position > 0) {
472 cursor_position--;
473 cursor_form_win--;
474 }
475 break;
476 case KEY_HOME:
477 cursor_position = 0;
478 cursor_form_win = 0;
479 break;
480 case KEY_END:
481 cursor_position = len;
482 cursor_form_win = min(cursor_position, prompt_width-1);
483 break;
484 default:
485 if ((isgraph(res) || isspace(res))) {
486 /* one for new char, one for '\0' */
487 if (len+2 > *result_len) {
488 *result_len = len+2;
489 *resultp = result = realloc(result,
490 *result_len);
491 }
492 /* insert the char at the proper position */
493 memmove(&result[cursor_position+1],
494 &result[cursor_position],
495 len-cursor_position+1);
496 result[cursor_position] = res;
497 cursor_position++;
498 cursor_form_win++;
499 len++;
500 } else {
501 mvprintw(0, 0, "unknown key: %d\n", res);
502 }
503 break;
504 }
505 if (cursor_form_win < 0)
506 cursor_form_win = 0;
507 else if (cursor_form_win > prompt_width-1)
508 cursor_form_win = prompt_width-1;
509
510 wmove(form_win, 0, 0);
511 wclrtoeol(form_win);
512 mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
513 mvwprintw(form_win, 0, 0, "%s",
514 result + cursor_position-cursor_form_win);
515 wmove(form_win, 0, cursor_form_win);
516 touchwin(win);
517 refresh_all_windows(main_window);
518
519 if (res == 10) {
520 res = 0;
521 break;
522 } else if (res == 27 || res == KEY_F(F_BACK) ||
523 res == KEY_F(F_EXIT)) {
524 res = KEY_EXIT;
525 break;
526 } else if (res == KEY_F(F_HELP)) {
527 res = 1;
528 break;
529 }
530 }
531
532 /* hide the cursor */
533 curs_set(0);
534 del_panel(panel);
535 delwin(prompt_win);
536 delwin(form_win);
537 delwin(win);
538 return res;
539 }
540
541 /* refresh all windows in the correct order */
542 void refresh_all_windows(WINDOW *main_window)
543 {
544 update_panels();
545 touchwin(main_window);
546 refresh();
547 }
548
549 /* layman's scrollable window... */
550 void show_scroll_win(WINDOW *main_window,
551 const char *title,
552 const char *text)
553 {
554 int res;
555 int total_lines = get_line_no(text);
556 int x, y, lines, columns;
557 int start_x = 0, start_y = 0;
558 int text_lines = 0, text_cols = 0;
559 int total_cols = 0;
560 int win_cols = 0;
561 int win_lines = 0;
562 int i = 0;
563 WINDOW *win;
564 WINDOW *pad;
565 PANEL *panel;
566
567 getmaxyx(stdscr, lines, columns);
568
569 /* find the widest line of msg: */
570 total_lines = get_line_no(text);
571 for (i = 0; i < total_lines; i++) {
572 const char *line = get_line(text, i);
573 int len = get_line_length(line);
574 total_cols = max(total_cols, len+2);
575 }
576
577 /* create the pad */
578 pad = newpad(total_lines+10, total_cols+10);
579 (void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
580 fill_window(pad, text);
581
582 win_lines = min(total_lines+4, lines-2);
583 win_cols = min(total_cols+2, columns-2);
584 text_lines = max(win_lines-4, 0);
585 text_cols = max(win_cols-2, 0);
586
587 /* place window in middle of screen */
588 y = (lines-win_lines)/2;
589 x = (columns-win_cols)/2;
590
591 win = newwin(win_lines, win_cols, y, x);
592 keypad(win, TRUE);
593 /* show the help in the help window, and show the help panel */
594 (void) wattrset(win, attributes[SCROLLWIN_BOX]);
595 box(win, 0, 0);
596 (void) wattrset(win, attributes[SCROLLWIN_HEADING]);
597 mvwprintw(win, 0, 3, " %s ", title);
598 panel = new_panel(win);
599
600 /* handle scrolling */
601 do {
602
603 copywin(pad, win, start_y, start_x, 2, 2, text_lines,
604 text_cols, 0);
605 print_in_middle(win,
606 text_lines+2,
607 0,
608 text_cols,
609 "<OK>",
610 attributes[DIALOG_MENU_FORE]);
611 wrefresh(win);
612
613 res = wgetch(win);
614 switch (res) {
615 case KEY_NPAGE:
616 case ' ':
617 case 'd':
618 start_y += text_lines-2;
619 break;
620 case KEY_PPAGE:
621 case 'u':
622 start_y -= text_lines+2;
623 break;
624 case KEY_HOME:
625 start_y = 0;
626 break;
627 case KEY_END:
628 start_y = total_lines-text_lines;
629 break;
630 case KEY_DOWN:
631 case 'j':
632 start_y++;
633 break;
634 case KEY_UP:
635 case 'k':
636 start_y--;
637 break;
638 case KEY_LEFT:
639 case 'h':
640 start_x--;
641 break;
642 case KEY_RIGHT:
643 case 'l':
644 start_x++;
645 break;
646 }
647 if (res == 10 || res == 27 || res == 'q' ||
648 res == KEY_F(F_HELP) || res == KEY_F(F_BACK) ||
649 res == KEY_F(F_EXIT))
650 break;
651 if (start_y < 0)
652 start_y = 0;
653 if (start_y >= total_lines-text_lines)
654 start_y = total_lines-text_lines;
655 if (start_x < 0)
656 start_x = 0;
657 if (start_x >= total_cols-text_cols)
658 start_x = total_cols-text_cols;
659 } while (res);
660
661 del_panel(panel);
662 delwin(win);
663 refresh_all_windows(main_window);
664 }
CRIS linux kernel tree