1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
5 * Derived from menuconfig.
10 /* a list of all the different widgets we use */
11 attributes_t attributes[ATTR_MAX+1] = {0};
23 static void set_normal_colors(void)
25 init_pair(NORMAL, -1, -1);
26 init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
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);
36 init_pair(SCROLLWIN_TEXT, -1, -1);
37 init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
38 init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
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);
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);
50 init_pair(FUNCTION_HIGHLIGHT, -1, -1);
51 init_pair(FUNCTION_TEXT, COLOR_YELLOW, -1);
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
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
68 static void normal_color_theme(void)
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);
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);
82 mkattr(SCROLLWIN_TEXT, A_NORMAL);
83 mkattr(SCROLLWIN_HEADING, A_BOLD);
84 mkattr(SCROLLWIN_BOX, A_BOLD);
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);
91 mkattr(INPUT_BOX, A_NORMAL);
92 mkattr(INPUT_HEADING, A_BOLD);
93 mkattr(INPUT_TEXT, A_NORMAL);
94 mkattr(INPUT_FIELD, A_UNDERLINE);
96 mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
97 mkattr(FUNCTION_TEXT, A_REVERSE);
100 static void no_colors_theme(void)
102 /* automatically add highlight, no color */
103 #define mkattrn(name, attr) { attributes[name] = attr; }
105 mkattrn(NORMAL, NORMAL);
106 mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);
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);
114 mkattrn(SCROLLWIN_TEXT, A_NORMAL);
115 mkattrn(SCROLLWIN_HEADING, A_BOLD);
116 mkattrn(SCROLLWIN_BOX, A_BOLD);
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);
123 mkattrn(INPUT_BOX, A_BOLD);
124 mkattrn(INPUT_HEADING, A_BOLD);
125 mkattrn(INPUT_TEXT, A_NORMAL);
126 mkattrn(INPUT_FIELD, A_UNDERLINE);
128 mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
129 mkattrn(FUNCTION_TEXT, A_REVERSE);
132 void set_colors(void)
135 use_default_colors();
138 normal_color_theme();
146 /* this changes the windows attributes !!! */
147 void print_in_middle(WINDOW *win,
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);
175 int get_line_no(const char *text)
183 for (i = 0; text[i] != '\0'; i++)
189 const char *get_line(const char *text, int line_no)
197 for (i = 0; text[i] != '\0' && lines < line_no; i++)
203 int get_line_length(const char *line)
206 while (*line != '\0' && *line != '\n') {
213 /* print all lines to the window. */
214 void fill_window(WINDOW *win, const char *text)
217 int total_lines = get_line_no(text);
221 /* do not go over end of line */
222 total_lines = min(total_lines, y);
223 for (i = 0; i < total_lines; i++) {
225 const char *line = get_line(text, i);
226 int len = get_line_length(line);
227 strncpy(tmp, line, min(len, x));
229 mvwprintw(win, i, 0, "%s", tmp);
233 /* get the message, and buttons.
234 * each button must be a char*
235 * return the selected button
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
241 int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
254 ITEM *btns[btn_num+1];
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;
266 btns[btn_num] = NULL;
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);
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;
283 /* create the windows */
285 win_rows = msg_lines+4;
287 win_rows = msg_lines+2;
289 win = newwin(win_rows, total_width+4, y, x);
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);
297 set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
298 set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
300 (void) wattrset(win, attributes[DIALOG_BOX]);
304 (void) wattrset(msg_win, attributes[DIALOG_TEXT]);
305 fill_window(msg_win, msg);
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, "");
319 refresh_all_windows(main_window);
320 while ((res = wgetch(win))) {
323 menu_driver(menu, REQ_LEFT_ITEM);
326 menu_driver(menu, REQ_RIGHT_ITEM);
329 case 27: /* ESCAPE */
336 refresh_all_windows(main_window);
338 if (res == 10 || res == ' ') {
339 res = item_index(current_item(menu));
341 } else if (res == 27 || res == KEY_F(F_BACK) ||
342 res == KEY_F(F_EXIT)) {
350 for (i = 0; i < btn_num; i++)
357 int dialog_inputbox(WINDOW *main_window,
358 const char *title, const char *prompt,
359 const char *init, char **resultp, int *result_len)
361 int prompt_lines = 0;
362 int prompt_width = 0;
367 int i, x, y, lines, columns, win_lines, win_cols;
369 int cursor_position = strlen(init);
371 char *result = *resultp;
373 getmaxyx(stdscr, lines, columns);
375 if (strlen(init)+1 > *result_len) {
376 *result_len = strlen(init)+1;
377 *resultp = result = xrealloc(result, *result_len);
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);
389 prompt_width = max(prompt_width, strlen(title));
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);
396 /* place dialog in middle of screen */
397 y = (lines-win_lines)/2;
398 x = (columns-win_cols)/2;
400 strncpy(result, init, *result_len);
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);
408 (void) wattrset(form_win, attributes[INPUT_FIELD]);
410 (void) wattrset(win, attributes[INPUT_BOX]);
412 (void) wattrset(win, attributes[INPUT_HEADING]);
414 mvwprintw(win, 0, 3, "%s", title);
417 (void) wattrset(prompt_win, attributes[INPUT_TEXT]);
418 fill_window(prompt_win, prompt);
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);
426 panel = new_panel(win);
428 /* show the cursor */
432 refresh_all_windows(main_window);
433 while ((res = wgetch(form_win))) {
434 int len = strlen(result);
437 case 27: /* ESCAPE */
445 if (cursor_position > 0) {
446 memmove(&result[cursor_position-1],
447 &result[cursor_position],
448 len-cursor_position+1);
455 if (cursor_position >= 0 && cursor_position < len) {
456 memmove(&result[cursor_position],
457 &result[cursor_position+1],
458 len-cursor_position+1);
464 if (cursor_position < len) {
471 if (cursor_position > 0) {
481 cursor_position = len;
482 cursor_form_win = min(cursor_position, prompt_width-1);
485 if ((isgraph(res) || isspace(res))) {
486 /* one for new char, one for '\0' */
487 if (len+2 > *result_len) {
489 *resultp = result = realloc(result,
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;
501 mvprintw(0, 0, "unknown key: %d\n", res);
505 if (cursor_form_win < 0)
507 else if (cursor_form_win > prompt_width-1)
508 cursor_form_win = prompt_width-1;
510 wmove(form_win, 0, 0);
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);
517 refresh_all_windows(main_window);
522 } else if (res == 27 || res == KEY_F(F_BACK) ||
523 res == KEY_F(F_EXIT)) {
526 } else if (res == KEY_F(F_HELP)) {
532 /* hide the cursor */
541 /* refresh all windows in the correct order */
542 void refresh_all_windows(WINDOW *main_window)
545 touchwin(main_window);
549 /* layman's scrollable window... */
550 void show_scroll_win(WINDOW *main_window,
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;
567 getmaxyx(stdscr, lines, columns);
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);
578 pad = newpad(total_lines+10, total_cols+10);
579 (void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
580 fill_window(pad, text);
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);
587 /* place window in middle of screen */
588 y = (lines-win_lines)/2;
589 x = (columns-win_cols)/2;
591 win = newwin(win_lines, win_cols, y, x);
593 /* show the help in the help window, and show the help panel */
594 (void) wattrset(win, attributes[SCROLLWIN_BOX]);
596 (void) wattrset(win, attributes[SCROLLWIN_HEADING]);
597 mvwprintw(win, 0, 3, " %s ", title);
598 panel = new_panel(win);
600 /* handle scrolling */
603 copywin(pad, win, start_y, start_x, 2, 2, text_lines,
610 attributes[DIALOG_MENU_FORE]);
618 start_y += text_lines-2;
622 start_y -= text_lines+2;
628 start_y = total_lines-text_lines;
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))
653 if (start_y >= total_lines-text_lines)
654 start_y = total_lines-text_lines;
657 if (start_x >= total_cols-text_cols)
658 start_x = total_cols-text_cols;
663 refresh_all_windows(main_window);