blob: f8137b3a5382fd0862ed6f6ae6d4d545de26ec8c [file] [log] [blame]
Kevin O'Connora4c5daf2011-01-24 22:13:58 -05001/*
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 */
11attributes_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 */
23static 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_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 */
68static void normal_color_theme(void)
69{
70 /* automatically add color... */
71#define mkattr(name, attr) do { \
72attributes[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
100static 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
132void 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 !!! */
147void 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
175int 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
189const 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
203int 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. */
214void 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 */
241int 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
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
357int 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
395 (void) wattrset(form_win, attributes[INPUT_FIELD]);
396
397 (void) wattrset(win, attributes[INPUT_BOX]);
398 box(win, 0, 0);
399 (void) wattrset(win, attributes[INPUT_HEADING]);
400 if (title)
401 mvwprintw(win, 0, 3, "%s", title);
402
403 /* print message */
404 (void) wattrset(prompt_win, attributes[INPUT_TEXT]);
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 */
499void refresh_all_windows(WINDOW *main_window)
500{
501 update_panels();
502 touchwin(main_window);
503 refresh();
504}
505
506/* layman's scrollable window... */
507void 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);
534 (void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
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 */
549 (void) wattrset(win, attributes[SCROLLWIN_BOX]);
550 box(win, 0, 0);
551 (void) wattrset(win, attributes[SCROLLWIN_HEADING]);
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}