2 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
3 * Released under the terms of the GNU GPL v2.0.
5 * Derived from menuconfig.
11 /* a list of all the different widgets we use */
12 attributes_t attributes[ATTR_MAX+1] = {0};
24 static void set_normal_colors(void)
26 init_pair(NORMAL, -1, -1);
27 init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
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);
37 init_pair(SCROLLWIN_TEXT, -1, -1);
38 init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
39 init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
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);
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);
51 init_pair(FUNCTION_HIGHLIGHT, -1, -1);
52 init_pair(FUNCTION_TEXT, COLOR_YELLOW, -1);
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
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
69 static void normal_color_theme(void)
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);
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);
83 mkattr(SCROLLWIN_TEXT, A_NORMAL);
84 mkattr(SCROLLWIN_HEADING, A_BOLD);
85 mkattr(SCROLLWIN_BOX, A_BOLD);
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);
92 mkattr(INPUT_BOX, A_NORMAL);
93 mkattr(INPUT_HEADING, A_BOLD);
94 mkattr(INPUT_TEXT, A_NORMAL);
95 mkattr(INPUT_FIELD, A_UNDERLINE);
97 mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
98 mkattr(FUNCTION_TEXT, A_REVERSE);
101 static void no_colors_theme(void)
103 /* automatically add highlight, no color */
104 #define mkattrn(name, attr) { attributes[name] = attr; }
106 mkattrn(NORMAL, NORMAL);
107 mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);
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);
115 mkattrn(SCROLLWIN_TEXT, A_NORMAL);
116 mkattrn(SCROLLWIN_HEADING, A_BOLD);
117 mkattrn(SCROLLWIN_BOX, A_BOLD);
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);
124 mkattrn(INPUT_BOX, A_BOLD);
125 mkattrn(INPUT_HEADING, A_BOLD);
126 mkattrn(INPUT_TEXT, A_NORMAL);
127 mkattrn(INPUT_FIELD, A_UNDERLINE);
129 mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
130 mkattrn(FUNCTION_TEXT, A_REVERSE);
133 void set_colors(void)
136 use_default_colors();
139 normal_color_theme();
147 /* this changes the windows attributes !!! */
148 void print_in_middle(WINDOW *win,
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);
176 int get_line_no(const char *text)
184 for (i = 0; text[i] != '\0'; i++)
190 const char *get_line(const char *text, int line_no)
198 for (i = 0; text[i] != '\0' && lines < line_no; i++)
204 int get_line_length(const char *line)
207 while (*line != '\0' && *line != '\n') {
214 /* print all lines to the window. */
215 void fill_window(WINDOW *win, const char *text)
218 int total_lines = get_line_no(text);
222 /* do not go over end of line */
223 total_lines = min(total_lines, y);
224 for (i = 0; i < total_lines; i++) {
226 const char *line = get_line(text, i);
227 int len = get_line_length(line);
228 strncpy(tmp, line, min(len, x));
230 mvwprintw(win, i, 0, "%s", tmp);
234 /* get the message, and buttons.
235 * each button must be a char*
236 * return the selected button
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
242 int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
255 ITEM *btns[btn_num+1];
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;
267 btns[btn_num] = NULL;
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);
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;
284 /* create the windows */
286 win_rows = msg_lines+4;
288 win_rows = msg_lines+2;
290 win = newwin(win_rows, total_width+4, y, x);
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);
298 set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
299 set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
301 (void) wattrset(win, attributes[DIALOG_BOX]);
305 (void) wattrset(msg_win, attributes[DIALOG_TEXT]);
306 fill_window(msg_win, msg);
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, "");
320 refresh_all_windows(main_window);
321 while ((res = wgetch(win))) {
324 menu_driver(menu, REQ_LEFT_ITEM);
327 menu_driver(menu, REQ_RIGHT_ITEM);
330 case 27: /* ESCAPE */
337 refresh_all_windows(main_window);
339 if (res == 10 || res == ' ') {
340 res = item_index(current_item(menu));
342 } else if (res == 27 || res == KEY_F(F_BACK) ||
343 res == KEY_F(F_EXIT)) {
351 for (i = 0; i < btn_num; i++)
358 int dialog_inputbox(WINDOW *main_window,
359 const char *title, const char *prompt,
360 const char *init, char **resultp, int *result_len)
362 int prompt_lines = 0;
363 int prompt_width = 0;
368 int i, x, y, lines, columns, win_lines, win_cols;
370 int cursor_position = strlen(init);
372 char *result = *resultp;
374 getmaxyx(stdscr, lines, columns);
376 if (strlen(init)+1 > *result_len) {
377 *result_len = strlen(init)+1;
378 *resultp = result = xrealloc(result, *result_len);
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);
390 prompt_width = max(prompt_width, strlen(title));
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);
397 /* place dialog in middle of screen */
398 y = (lines-win_lines)/2;
399 x = (columns-win_cols)/2;
401 strncpy(result, init, *result_len);
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);
409 (void) wattrset(form_win, attributes[INPUT_FIELD]);
411 (void) wattrset(win, attributes[INPUT_BOX]);
413 (void) wattrset(win, attributes[INPUT_HEADING]);
415 mvwprintw(win, 0, 3, "%s", title);
418 (void) wattrset(prompt_win, attributes[INPUT_TEXT]);
419 fill_window(prompt_win, prompt);
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);
427 panel = new_panel(win);
429 /* show the cursor */
433 refresh_all_windows(main_window);
434 while ((res = wgetch(form_win))) {
435 int len = strlen(result);
438 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);