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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
4 *
5 * Derived from menuconfig.
6 */
7#include "nconf.h"
8#include "lkc.h"
9
10int attr_normal;
11int attr_main_heading;
12int attr_main_menu_box;
13int attr_main_menu_fore;
14int attr_main_menu_back;
15int attr_main_menu_grey;
16int attr_main_menu_heading;
17int attr_scrollwin_text;
18int attr_scrollwin_heading;
19int attr_scrollwin_box;
20int attr_dialog_text;
21int attr_dialog_menu_fore;
22int attr_dialog_menu_back;
23int attr_dialog_box;
24int attr_input_box;
25int attr_input_heading;
26int attr_input_text;
27int attr_input_field;
28int attr_function_text;
29int attr_function_highlight;
30
31#define COLOR_ATTR(_at, _fg, _bg, _hl) \
32 { .attr = &(_at), .has_color = true, .color_fg = _fg, .color_bg = _bg, .highlight = _hl }
33#define NO_COLOR_ATTR(_at, _hl) \
34 { .attr = &(_at), .has_color = false, .highlight = _hl }
35#define COLOR_DEFAULT -1
36
37struct nconf_attr_param {
38 int *attr;
39 bool has_color;
40 int color_fg;
41 int color_bg;
42 int highlight;
43};
44
45static const struct nconf_attr_param color_theme_params[] = {
46 COLOR_ATTR(attr_normal, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL),
47 COLOR_ATTR(attr_main_heading, COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD | A_UNDERLINE),
48 COLOR_ATTR(attr_main_menu_box, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL),
49 COLOR_ATTR(attr_main_menu_fore, COLOR_DEFAULT, COLOR_DEFAULT, A_REVERSE),
50 COLOR_ATTR(attr_main_menu_back, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL),
51 COLOR_ATTR(attr_main_menu_grey, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL),
52 COLOR_ATTR(attr_main_menu_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD),
53 COLOR_ATTR(attr_scrollwin_text, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL),
54 COLOR_ATTR(attr_scrollwin_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD),
55 COLOR_ATTR(attr_scrollwin_box, COLOR_YELLOW, COLOR_DEFAULT, A_BOLD),
56 COLOR_ATTR(attr_dialog_text, COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD),
57 COLOR_ATTR(attr_dialog_menu_fore, COLOR_RED, COLOR_DEFAULT, A_STANDOUT),
58 COLOR_ATTR(attr_dialog_menu_back, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL),
59 COLOR_ATTR(attr_dialog_box, COLOR_YELLOW, COLOR_DEFAULT, A_BOLD),
60 COLOR_ATTR(attr_input_box, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL),
61 COLOR_ATTR(attr_input_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD),
62 COLOR_ATTR(attr_input_text, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL),
63 COLOR_ATTR(attr_input_field, COLOR_DEFAULT, COLOR_DEFAULT, A_UNDERLINE),
64 COLOR_ATTR(attr_function_text, COLOR_YELLOW, COLOR_DEFAULT, A_REVERSE),
65 COLOR_ATTR(attr_function_highlight, COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD),
66 { /* sentinel */ }
67};
68
69static const struct nconf_attr_param no_color_theme_params[] = {
70 NO_COLOR_ATTR(attr_normal, A_NORMAL),
71 NO_COLOR_ATTR(attr_main_heading, A_BOLD | A_UNDERLINE),
72 NO_COLOR_ATTR(attr_main_menu_box, A_NORMAL),
73 NO_COLOR_ATTR(attr_main_menu_fore, A_STANDOUT),
74 NO_COLOR_ATTR(attr_main_menu_back, A_NORMAL),
75 NO_COLOR_ATTR(attr_main_menu_grey, A_NORMAL),
76 NO_COLOR_ATTR(attr_main_menu_heading, A_BOLD),
77 NO_COLOR_ATTR(attr_scrollwin_text, A_NORMAL),
78 NO_COLOR_ATTR(attr_scrollwin_heading, A_BOLD),
79 NO_COLOR_ATTR(attr_scrollwin_box, A_BOLD),
80 NO_COLOR_ATTR(attr_dialog_text, A_NORMAL),
81 NO_COLOR_ATTR(attr_dialog_menu_fore, A_STANDOUT),
82 NO_COLOR_ATTR(attr_dialog_menu_back, A_NORMAL),
83 NO_COLOR_ATTR(attr_dialog_box, A_BOLD),
84 NO_COLOR_ATTR(attr_input_box, A_BOLD),
85 NO_COLOR_ATTR(attr_input_heading, A_BOLD),
86 NO_COLOR_ATTR(attr_input_text, A_NORMAL),
87 NO_COLOR_ATTR(attr_input_field, A_UNDERLINE),
88 NO_COLOR_ATTR(attr_function_text, A_REVERSE),
89 NO_COLOR_ATTR(attr_function_highlight, A_BOLD),
90 { /* sentinel */ }
91};
92
93void set_colors(void)
94{
95 const struct nconf_attr_param *p;
96 int pair = 0;
97
98 if (has_colors()) {
99 start_color();
100 use_default_colors();
101 p = color_theme_params;
102 } else {
103 p = no_color_theme_params;
104 }
105
106 for (; p->attr; p++) {
107 int attr = p->highlight;
108
109 if (p->has_color) {
110 pair++;
111 init_pair(pair, p->color_fg, p->color_bg);
112 attr |= COLOR_PAIR(pair);
113 }
114
115 *p->attr = attr;
116 }
117}
118
119/* this changes the windows attributes !!! */
120void print_in_middle(WINDOW *win, int y, int width, const char *str, int attrs)
121{
122 wattrset(win, attrs);
123 mvwprintw(win, y, (width - strlen(str)) / 2, "%s", str);
124}
125
126int get_line_no(const char *text)
127{
128 int i;
129 int total = 1;
130
131 if (!text)
132 return 0;
133
134 for (i = 0; text[i] != '\0'; i++)
135 if (text[i] == '\n')
136 total++;
137 return total;
138}
139
140const char *get_line(const char *text, int line_no)
141{
142 int i;
143 int lines = 0;
144
145 if (!text)
146 return NULL;
147
148 for (i = 0; text[i] != '\0' && lines < line_no; i++)
149 if (text[i] == '\n')
150 lines++;
151 return text+i;
152}
153
154int get_line_length(const char *line)
155{
156 int res = 0;
157 while (*line != '\0' && *line != '\n') {
158 line++;
159 res++;
160 }
161 return res;
162}
163
164/* print all lines to the window. */
165void fill_window(WINDOW *win, const char *text)
166{
167 int x, y;
168 int total_lines = get_line_no(text);
169 int i;
170
171 getmaxyx(win, y, x);
172 /* do not go over end of line */
173 total_lines = min(total_lines, y);
174 for (i = 0; i < total_lines; i++) {
175 char tmp[x+10];
176 const char *line = get_line(text, i);
177 int len = get_line_length(line);
178 strncpy(tmp, line, min(len, x));
179 tmp[len] = '\0';
180 mvwprintw(win, i, 0, "%s", tmp);
181 }
182}
183
184/* get the message, and buttons.
185 * each button must be a char*
186 * return the selected button
187 *
188 * this dialog is used for 2 different things:
189 * 1) show a text box, no buttons.
190 * 2) show a dialog, with horizontal buttons
191 */
192int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
193{
194 va_list ap;
195 char *btn;
196 int btns_width = 0;
197 int msg_lines = 0;
198 int msg_width = 0;
199 int total_width;
200 int win_rows = 0;
201 WINDOW *win;
202 WINDOW *msg_win;
203 WINDOW *menu_win;
204 MENU *menu;
205 ITEM *btns[btn_num+1];
206 int i, x, y;
207 int res = -1;
208
209
210 va_start(ap, btn_num);
211 for (i = 0; i < btn_num; i++) {
212 btn = va_arg(ap, char *);
213 btns[i] = new_item(btn, "");
214 btns_width += strlen(btn)+1;
215 }
216 va_end(ap);
217 btns[btn_num] = NULL;
218
219 /* find the widest line of msg: */
220 msg_lines = get_line_no(msg);
221 for (i = 0; i < msg_lines; i++) {
222 const char *line = get_line(msg, i);
223 int len = get_line_length(line);
224 if (msg_width < len)
225 msg_width = len;
226 }
227
228 total_width = max(msg_width, btns_width);
229 /* place dialog in middle of screen */
230 y = (getmaxy(stdscr)-(msg_lines+4))/2;
231 x = (getmaxx(stdscr)-(total_width+4))/2;
232
233
234 /* create the windows */
235 if (btn_num > 0)
236 win_rows = msg_lines+4;
237 else
238 win_rows = msg_lines+2;
239
240 win = newwin(win_rows, total_width+4, y, x);
241 keypad(win, TRUE);
242 menu_win = derwin(win, 1, btns_width, win_rows-2,
243 1+(total_width+2-btns_width)/2);
244 menu = new_menu(btns);
245 msg_win = derwin(win, win_rows-2, msg_width, 1,
246 1+(total_width+2-msg_width)/2);
247
248 set_menu_fore(menu, attr_dialog_menu_fore);
249 set_menu_back(menu, attr_dialog_menu_back);
250
251 wattrset(win, attr_dialog_box);
252 box(win, 0, 0);
253
254 /* print message */
255 wattrset(msg_win, attr_dialog_text);
256 fill_window(msg_win, msg);
257
258 set_menu_win(menu, win);
259 set_menu_sub(menu, menu_win);
260 set_menu_format(menu, 1, btn_num);
261 menu_opts_off(menu, O_SHOWDESC);
262 menu_opts_off(menu, O_SHOWMATCH);
263 menu_opts_on(menu, O_ONEVALUE);
264 menu_opts_on(menu, O_NONCYCLIC);
265 set_menu_mark(menu, "");
266 post_menu(menu);
267
268
269 touchwin(win);
270 refresh_all_windows(main_window);
271 while ((res = wgetch(win))) {
272 switch (res) {
273 case KEY_LEFT:
274 menu_driver(menu, REQ_LEFT_ITEM);
275 break;
276 case KEY_RIGHT:
277 menu_driver(menu, REQ_RIGHT_ITEM);
278 break;
279 case 10: /* ENTER */
280 case 27: /* ESCAPE */
281 case ' ':
282 case KEY_F(F_BACK):
283 case KEY_F(F_EXIT):
284 break;
285 }
286 touchwin(win);
287 refresh_all_windows(main_window);
288
289 if (res == 10 || res == ' ') {
290 res = item_index(current_item(menu));
291 break;
292 } else if (res == 27 || res == KEY_F(F_BACK) ||
293 res == KEY_F(F_EXIT)) {
294 res = KEY_EXIT;
295 break;
296 }
297 }
298
299 unpost_menu(menu);
300 free_menu(menu);
301 for (i = 0; i < btn_num; i++)
302 free_item(btns[i]);
303
304 delwin(win);
305 return res;
306}
307
308int dialog_inputbox(WINDOW *main_window,
309 const char *title, const char *prompt,
310 const char *init, char **resultp, int *result_len)
311{
312 int prompt_lines = 0;
313 int prompt_width = 0;
314 WINDOW *win;
315 WINDOW *prompt_win;
316 WINDOW *form_win;
317 PANEL *panel;
318 int i, x, y, lines, columns, win_lines, win_cols;
319 int res = -1;
320 int cursor_position = strlen(init);
321 int cursor_form_win;
322 char *result = *resultp;
323
324 getmaxyx(stdscr, lines, columns);
325
326 if (strlen(init)+1 > *result_len) {
327 *result_len = strlen(init)+1;
328 *resultp = result = xrealloc(result, *result_len);
329 }
330
331 /* find the widest line of msg: */
332 prompt_lines = get_line_no(prompt);
333 for (i = 0; i < prompt_lines; i++) {
334 const char *line = get_line(prompt, i);
335 int len = get_line_length(line);
336 prompt_width = max(prompt_width, len);
337 }
338
339 if (title)
340 prompt_width = max(prompt_width, strlen(title));
341
342 win_lines = min(prompt_lines+6, lines-2);
343 win_cols = min(prompt_width+7, columns-2);
344 prompt_lines = max(win_lines-6, 0);
345 prompt_width = max(win_cols-7, 0);
346
347 /* place dialog in middle of screen */
348 y = (lines-win_lines)/2;
349 x = (columns-win_cols)/2;
350
351 strncpy(result, init, *result_len);
352
353 /* create the windows */
354 win = newwin(win_lines, win_cols, y, x);
355 prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
356 form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
357 keypad(form_win, TRUE);
358
359 wattrset(form_win, attr_input_field);
360
361 wattrset(win, attr_input_box);
362 box(win, 0, 0);
363 wattrset(win, attr_input_heading);
364 if (title)
365 mvwprintw(win, 0, 3, "%s", title);
366
367 /* print message */
368 wattrset(prompt_win, attr_input_text);
369 fill_window(prompt_win, prompt);
370
371 mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
372 cursor_form_win = min(cursor_position, prompt_width-1);
373 mvwprintw(form_win, 0, 0, "%s",
374 result + cursor_position-cursor_form_win);
375
376 /* create panels */
377 panel = new_panel(win);
378
379 /* show the cursor */
380 curs_set(1);
381
382 touchwin(win);
383 refresh_all_windows(main_window);
384 while ((res = wgetch(form_win))) {
385 int len = strlen(result);
386 switch (res) {
387 case 10: /* ENTER */
388 case 27: /* ESCAPE */
389 case KEY_F(F_HELP):
390 case KEY_F(F_EXIT):
391 case KEY_F(F_BACK):
392 break;
393 case 8: /* ^H */
394 case 127: /* ^? */
395 case KEY_BACKSPACE:
396 if (cursor_position > 0) {
397 memmove(&result[cursor_position-1],
398 &result[cursor_position],
399 len-cursor_position+1);
400 cursor_position--;
401 cursor_form_win--;
402 len--;
403 }
404 break;
405 case KEY_DC:
406 if (cursor_position >= 0 && cursor_position < len) {
407 memmove(&result[cursor_position],
408 &result[cursor_position+1],
409 len-cursor_position+1);
410 len--;
411 }
412 break;
413 case KEY_UP:
414 case KEY_RIGHT:
415 if (cursor_position < len) {
416 cursor_position++;
417 cursor_form_win++;
418 }
419 break;
420 case KEY_DOWN:
421 case KEY_LEFT:
422 if (cursor_position > 0) {
423 cursor_position--;
424 cursor_form_win--;
425 }
426 break;
427 case KEY_HOME:
428 cursor_position = 0;
429 cursor_form_win = 0;
430 break;
431 case KEY_END:
432 cursor_position = len;
433 cursor_form_win = min(cursor_position, prompt_width-1);
434 break;
435 default:
436 if ((isgraph(res) || isspace(res))) {
437 /* one for new char, one for '\0' */
438 if (len+2 > *result_len) {
439 *result_len = len+2;
440 *resultp = result = realloc(result,
441 *result_len);
442 }
443 /* insert the char at the proper position */
444 memmove(&result[cursor_position+1],
445 &result[cursor_position],
446 len-cursor_position+1);
447 result[cursor_position] = res;
448 cursor_position++;
449 cursor_form_win++;
450 len++;
451 } else {
452 mvprintw(0, 0, "unknown key: %d\n", res);
453 }
454 break;
455 }
456 if (cursor_form_win < 0)
457 cursor_form_win = 0;
458 else if (cursor_form_win > prompt_width-1)
459 cursor_form_win = prompt_width-1;
460
461 wmove(form_win, 0, 0);
462 wclrtoeol(form_win);
463 mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
464 mvwprintw(form_win, 0, 0, "%s",
465 result + cursor_position-cursor_form_win);
466 wmove(form_win, 0, cursor_form_win);
467 touchwin(win);
468 refresh_all_windows(main_window);
469
470 if (res == 10) {
471 res = 0;
472 break;
473 } else if (res == 27 || res == KEY_F(F_BACK) ||
474 res == KEY_F(F_EXIT)) {
475 res = KEY_EXIT;
476 break;
477 } else if (res == KEY_F(F_HELP)) {
478 res = 1;
479 break;
480 }
481 }
482
483 /* hide the cursor */
484 curs_set(0);
485 del_panel(panel);
486 delwin(prompt_win);
487 delwin(form_win);
488 delwin(win);
489 return res;
490}
491
492/* refresh all windows in the correct order */
493void refresh_all_windows(WINDOW *main_window)
494{
495 update_panels();
496 touchwin(main_window);
497 refresh();
498}
499
500void show_scroll_win(WINDOW *main_window,
501 const char *title,
502 const char *text)
503{
504 (void)show_scroll_win_ext(main_window, title, (char *)text, NULL, NULL, NULL, NULL);
505}
506
507/* layman's scrollable window... */
508int show_scroll_win_ext(WINDOW *main_window, const char *title, char *text,
509 int *vscroll, int *hscroll,
510 extra_key_cb_fn extra_key_cb, void *data)
511{
512 int res;
513 int total_lines = get_line_no(text);
514 int x, y, lines, columns;
515 int start_x = 0, start_y = 0;
516 int text_lines = 0, text_cols = 0;
517 int total_cols = 0;
518 int win_cols = 0;
519 int win_lines = 0;
520 int i = 0;
521 WINDOW *win;
522 WINDOW *pad;
523 PANEL *panel;
524 bool done = false;
525
526 if (hscroll)
527 start_x = *hscroll;
528 if (vscroll)
529 start_y = *vscroll;
530
531 getmaxyx(stdscr, lines, columns);
532
533 /* find the widest line of msg: */
534 total_lines = get_line_no(text);
535 for (i = 0; i < total_lines; i++) {
536 const char *line = get_line(text, i);
537 int len = get_line_length(line);
538 total_cols = max(total_cols, len+2);
539 }
540
541 /* create the pad */
542 pad = newpad(total_lines+10, total_cols+10);
543 wattrset(pad, attr_scrollwin_text);
544 fill_window(pad, text);
545
546 win_lines = min(total_lines+4, lines-2);
547 win_cols = min(total_cols+2, columns-2);
548 text_lines = max(win_lines-4, 0);
549 text_cols = max(win_cols-2, 0);
550
551 /* place window in middle of screen */
552 y = (lines-win_lines)/2;
553 x = (columns-win_cols)/2;
554
555 win = newwin(win_lines, win_cols, y, x);
556 keypad(win, TRUE);
557 /* show the help in the help window, and show the help panel */
558 wattrset(win, attr_scrollwin_box);
559 box(win, 0, 0);
560 wattrset(win, attr_scrollwin_heading);
561 mvwprintw(win, 0, 3, " %s ", title);
562 panel = new_panel(win);
563
564 /* handle scrolling */
565 while (!done) {
566 copywin(pad, win, start_y, start_x, 2, 2, text_lines,
567 text_cols, 0);
568 print_in_middle(win,
569 text_lines+2,
570 text_cols,
571 "<OK>",
572 attr_dialog_menu_fore);
573 wrefresh(win);
574
575 res = wgetch(win);
576 switch (res) {
577 case KEY_NPAGE:
578 case ' ':
579 case 'd':
580 start_y += text_lines-2;
581 break;
582 case KEY_PPAGE:
583 case 'u':
584 start_y -= text_lines+2;
585 break;
586 case KEY_HOME:
587 start_y = 0;
588 break;
589 case KEY_END:
590 start_y = total_lines-text_lines;
591 break;
592 case KEY_DOWN:
593 case 'j':
594 start_y++;
595 break;
596 case KEY_UP:
597 case 'k':
598 start_y--;
599 break;
600 case KEY_LEFT:
601 case 'h':
602 start_x--;
603 break;
604 case KEY_RIGHT:
605 case 'l':
606 start_x++;
607 break;
608 default:
609 if (extra_key_cb) {
610 size_t start = (get_line(text, start_y) - text);
611 size_t end = (get_line(text, start_y + text_lines) - text);
612
613 if (extra_key_cb(res, start, end, data)) {
614 done = true;
615 break;
616 }
617 }
618 }
619 if (res == 0 || res == 10 || res == 27 || res == 'q' ||
620 res == KEY_F(F_HELP) || res == KEY_F(F_BACK) ||
621 res == KEY_F(F_EXIT))
622 break;
623 if (start_y < 0)
624 start_y = 0;
625 if (start_y >= total_lines-text_lines)
626 start_y = total_lines-text_lines;
627 if (start_x < 0)
628 start_x = 0;
629 if (start_x >= total_cols-text_cols)
630 start_x = total_cols-text_cols;
631 }
632
633 if (hscroll)
634 *hscroll = start_x;
635 if (vscroll)
636 *vscroll = start_y;
637 del_panel(panel);
638 delwin(win);
639 refresh_all_windows(main_window);
640 return res;
641}
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 */
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}