692d97c3 |
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 | */ |
851190c9 |
23 | static void set_normal_colors(void) |
692d97c3 |
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_BLUE, -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 | */ |
851190c9 |
68 | static void normal_color_theme(void) |
692d97c3 |
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 | |
851190c9 |
100 | static void no_colors_theme(void) |
692d97c3 |
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 { |
c24035b9 |
140 | /* give defaults */ |
692d97c3 |
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; |
a72f3e2b |
170 | (void) wattrset(win, color); |
692d97c3 |
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'; |
58f915a3 |
229 | mvwprintw(win, i, 0, "%s", tmp); |
692d97c3 |
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 = (LINES-(msg_lines+4))/2; |
280 | x = (COLS-(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 | |
a72f3e2b |
300 | (void) wattrset(win, attributes[DIALOG_BOX]); |
692d97c3 |
301 | box(win, 0, 0); |
302 | |
303 | /* print message */ |
a72f3e2b |
304 | (void) wattrset(msg_win, attributes[DIALOG_TEXT]); |
692d97c3 |
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 *result, 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; |
368 | int res = -1; |
369 | int cursor_position = strlen(init); |
370 | |
371 | |
372 | /* find the widest line of msg: */ |
373 | prompt_lines = get_line_no(prompt); |
374 | for (i = 0; i < prompt_lines; i++) { |
375 | const char *line = get_line(prompt, i); |
376 | int len = get_line_length(line); |
377 | prompt_width = max(prompt_width, len); |
378 | } |
379 | |
380 | if (title) |
381 | prompt_width = max(prompt_width, strlen(title)); |
382 | |
383 | /* place dialog in middle of screen */ |
384 | y = (LINES-(prompt_lines+4))/2; |
385 | x = (COLS-(prompt_width+4))/2; |
386 | |
387 | strncpy(result, init, result_len); |
388 | |
389 | /* create the windows */ |
390 | win = newwin(prompt_lines+6, prompt_width+7, y, x); |
391 | prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2); |
392 | form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2); |
393 | keypad(form_win, TRUE); |
394 | |
a72f3e2b |
395 | (void) wattrset(form_win, attributes[INPUT_FIELD]); |
692d97c3 |
396 | |
a72f3e2b |
397 | (void) wattrset(win, attributes[INPUT_BOX]); |
692d97c3 |
398 | box(win, 0, 0); |
a72f3e2b |
399 | (void) wattrset(win, attributes[INPUT_HEADING]); |
692d97c3 |
400 | if (title) |
401 | mvwprintw(win, 0, 3, "%s", title); |
402 | |
403 | /* print message */ |
a72f3e2b |
404 | (void) wattrset(prompt_win, attributes[INPUT_TEXT]); |
692d97c3 |
405 | fill_window(prompt_win, prompt); |
406 | |
407 | mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); |
408 | mvwprintw(form_win, 0, 0, "%s", result); |
409 | |
410 | /* create panels */ |
411 | panel = new_panel(win); |
412 | |
413 | /* show the cursor */ |
414 | curs_set(1); |
415 | |
416 | touchwin(win); |
417 | refresh_all_windows(main_window); |
418 | while ((res = wgetch(form_win))) { |
419 | int len = strlen(result); |
420 | switch (res) { |
421 | case 10: /* ENTER */ |
422 | case 27: /* ESCAPE */ |
423 | case KEY_F(F_HELP): |
424 | case KEY_F(F_EXIT): |
425 | case KEY_F(F_BACK): |
426 | break; |
427 | case 127: |
428 | case KEY_BACKSPACE: |
429 | if (cursor_position > 0) { |
430 | memmove(&result[cursor_position-1], |
431 | &result[cursor_position], |
432 | len-cursor_position+1); |
433 | cursor_position--; |
434 | } |
435 | break; |
436 | case KEY_DC: |
437 | if (cursor_position >= 0 && cursor_position < len) { |
438 | memmove(&result[cursor_position], |
439 | &result[cursor_position+1], |
440 | len-cursor_position+1); |
441 | } |
442 | break; |
443 | case KEY_UP: |
444 | case KEY_RIGHT: |
445 | if (cursor_position < len && |
446 | cursor_position < min(result_len, prompt_width)) |
447 | cursor_position++; |
448 | break; |
449 | case KEY_DOWN: |
450 | case KEY_LEFT: |
451 | if (cursor_position > 0) |
452 | cursor_position--; |
453 | break; |
454 | default: |
455 | if ((isgraph(res) || isspace(res)) && |
456 | len-2 < result_len) { |
457 | /* insert the char at the proper position */ |
458 | memmove(&result[cursor_position+1], |
459 | &result[cursor_position], |
460 | len+1); |
461 | result[cursor_position] = res; |
462 | cursor_position++; |
463 | } else { |
464 | mvprintw(0, 0, "unknow key: %d\n", res); |
465 | } |
466 | break; |
467 | } |
468 | wmove(form_win, 0, 0); |
469 | wclrtoeol(form_win); |
470 | mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); |
471 | mvwprintw(form_win, 0, 0, "%s", result); |
472 | wmove(form_win, 0, cursor_position); |
473 | touchwin(win); |
474 | refresh_all_windows(main_window); |
475 | |
476 | if (res == 10) { |
477 | res = 0; |
478 | break; |
479 | } else if (res == 27 || res == KEY_F(F_BACK) || |
480 | res == KEY_F(F_EXIT)) { |
481 | res = KEY_EXIT; |
482 | break; |
483 | } else if (res == KEY_F(F_HELP)) { |
484 | res = 1; |
485 | break; |
486 | } |
487 | } |
488 | |
489 | /* hide the cursor */ |
490 | curs_set(0); |
491 | del_panel(panel); |
492 | delwin(prompt_win); |
493 | delwin(form_win); |
494 | delwin(win); |
495 | return res; |
496 | } |
497 | |
498 | /* refresh all windows in the correct order */ |
499 | void refresh_all_windows(WINDOW *main_window) |
500 | { |
501 | update_panels(); |
502 | touchwin(main_window); |
503 | refresh(); |
504 | } |
505 | |
506 | /* layman's scrollable window... */ |
507 | void show_scroll_win(WINDOW *main_window, |
508 | const char *title, |
509 | const char *text) |
510 | { |
511 | int res; |
512 | int total_lines = get_line_no(text); |
513 | int x, y; |
514 | int start_x = 0, start_y = 0; |
515 | int text_lines = 0, text_cols = 0; |
516 | int total_cols = 0; |
517 | int win_cols = 0; |
518 | int win_lines = 0; |
519 | int i = 0; |
520 | WINDOW *win; |
521 | WINDOW *pad; |
522 | PANEL *panel; |
523 | |
524 | /* find the widest line of msg: */ |
525 | total_lines = get_line_no(text); |
526 | for (i = 0; i < total_lines; i++) { |
527 | const char *line = get_line(text, i); |
528 | int len = get_line_length(line); |
529 | total_cols = max(total_cols, len+2); |
530 | } |
531 | |
532 | /* create the pad */ |
533 | pad = newpad(total_lines+10, total_cols+10); |
a72f3e2b |
534 | (void) wattrset(pad, attributes[SCROLLWIN_TEXT]); |
692d97c3 |
535 | fill_window(pad, text); |
536 | |
537 | win_lines = min(total_lines+4, LINES-2); |
538 | win_cols = min(total_cols+2, COLS-2); |
539 | text_lines = max(win_lines-4, 0); |
540 | text_cols = max(win_cols-2, 0); |
541 | |
542 | /* place window in middle of screen */ |
543 | y = (LINES-win_lines)/2; |
544 | x = (COLS-win_cols)/2; |
545 | |
546 | win = newwin(win_lines, win_cols, y, x); |
547 | keypad(win, TRUE); |
548 | /* show the help in the help window, and show the help panel */ |
a72f3e2b |
549 | (void) wattrset(win, attributes[SCROLLWIN_BOX]); |
692d97c3 |
550 | box(win, 0, 0); |
a72f3e2b |
551 | (void) wattrset(win, attributes[SCROLLWIN_HEADING]); |
692d97c3 |
552 | mvwprintw(win, 0, 3, " %s ", title); |
553 | panel = new_panel(win); |
554 | |
555 | /* handle scrolling */ |
556 | do { |
557 | |
558 | copywin(pad, win, start_y, start_x, 2, 2, text_lines, |
559 | text_cols, 0); |
560 | print_in_middle(win, |
561 | text_lines+2, |
562 | 0, |
563 | text_cols, |
564 | "<OK>", |
565 | attributes[DIALOG_MENU_FORE]); |
566 | wrefresh(win); |
567 | |
568 | res = wgetch(win); |
569 | switch (res) { |
570 | case KEY_NPAGE: |
571 | case ' ': |
572 | start_y += text_lines-2; |
573 | break; |
574 | case KEY_PPAGE: |
575 | start_y -= text_lines+2; |
576 | break; |
577 | case KEY_HOME: |
578 | start_y = 0; |
579 | break; |
580 | case KEY_END: |
581 | start_y = total_lines-text_lines; |
582 | break; |
583 | case KEY_DOWN: |
584 | case 'j': |
585 | start_y++; |
586 | break; |
587 | case KEY_UP: |
588 | case 'k': |
589 | start_y--; |
590 | break; |
591 | case KEY_LEFT: |
592 | case 'h': |
593 | start_x--; |
594 | break; |
595 | case KEY_RIGHT: |
596 | case 'l': |
597 | start_x++; |
598 | break; |
599 | } |
600 | if (res == 10 || res == 27 || res == 'q' |
601 | || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) { |
602 | break; |
603 | } |
604 | if (start_y < 0) |
605 | start_y = 0; |
606 | if (start_y >= total_lines-text_lines) |
607 | start_y = total_lines-text_lines; |
608 | if (start_x < 0) |
609 | start_x = 0; |
610 | if (start_x >= total_cols-text_cols) |
611 | start_x = total_cols-text_cols; |
612 | } while (res); |
613 | |
614 | del_panel(panel); |
615 | delwin(win); |
616 | refresh_all_windows(main_window); |
617 | } |