2 * $Id: calendar.c,v 1.67 2013/03/17 15:03:41 tom Exp $
4 * calendar.c -- implements the calendar box
6 * Copyright 2001-2012,2013 Thomas E. Dickey
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License, version 2.1
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this program; if not, write to
19 * Free Software Foundation, Inc.
20 * 51 Franklin St., Fifth Floor
21 * Boston, MA 02110, USA.
29 #define ONE_DAY (60 * 60 * 24)
31 #define MON_WIDE 4 /* width of a month-name */
32 #define DAY_HIGH 6 /* maximum lines in day-grid */
33 #define DAY_WIDE (8 * MON_WIDE) /* width of the day-grid */
34 #define HDR_HIGH 1 /* height of cells with month/year */
35 #define BTN_HIGH 1 /* height of button-row excluding margin */
37 /* two more lines: titles for day-of-week and month/year boxes */
38 #define MIN_HIGH (DAY_HIGH + 2 + HDR_HIGH + BTN_HIGH + (7 * MARGIN))
39 #define MIN_WIDE (DAY_WIDE + (4 * MARGIN))
49 typedef int (*BOX_DRAW) (struct _box *, struct tm *);
62 nameOfDayOfWeek(int n)
64 static const char *table[7]
78 const char *result = 0;
80 if (n >= 0 && n < 7) {
85 ABDAY_1, ABDAY_2, ABDAY_3, ABDAY_4, ABDAY_5, ABDAY_6, ABDAY_7
87 table[n] = nl_langinfo(items[n]);
101 static const char *table[12]
120 const char *result = 0;
122 if (n >= 0 && n < 12) {
127 MON_1, MON_2, MON_3, MON_4, MON_5, MON_6,
128 MON_7, MON_8, MON_9, MON_10, MON_11, MON_12
130 table[n] = nl_langinfo(items[n]);
142 days_in_month(struct tm *current, int offset /* -1, 0, 1 */ )
144 static const int nominal[] =
146 31, 28, 31, 30, 31, 30,
147 31, 31, 30, 31, 30, 31
149 int year = current->tm_year;
150 int month = current->tm_mon + offset;
157 while (month >= 12) {
161 result = nominal[month];
163 result += ((year % 4) == 0);
168 days_in_year(struct tm *current, int offset /* -1, 0, 1 */ )
170 int year = current->tm_year + 1900 + offset;
172 return ((year % 4) == 0) ? 366 : 365;
176 day_cell_number(struct tm *current)
179 cell = current->tm_mday - ((6 + current->tm_mday - current->tm_wday) % 7);
180 if ((current->tm_mday - 1) % 7 != current->tm_wday)
188 next_or_previous(int key, int two_d)
194 result = two_d ? -7 : -1;
200 result = two_d ? 7 : 1;
202 case DLGK_GRID_RIGHT:
213 * Draw the day-of-month selection box
216 draw_day(BOX * data, struct tm *current)
218 int cell_wide = MON_WIDE;
219 int y, x, this_x = 0;
220 int save_y = 0, save_x = 0;
221 int day = current->tm_mday;
224 int last = days_in_month(current, 0);
225 int prev = days_in_month(current, -1);
227 werase(data->window);
228 dlg_draw_box2(data->parent,
229 data->y - MARGIN, data->x - MARGIN,
230 data->height + (2 * MARGIN), data->width + (2 * MARGIN),
233 menubox_border2_attr);
235 (void) wattrset(data->window, menubox_attr); /* daynames headline */
236 for (x = 0; x < 7; x++) {
237 mvwprintw(data->window,
238 0, (x + 1) * cell_wide, "%*.*s ",
244 mday = ((6 + current->tm_mday - current->tm_wday) % 7) - 7;
247 /* mday is now in the range -6 to 0. */
248 week = (current->tm_yday + 6 + mday - current->tm_mday) / 7;
250 for (y = 1; mday < last; y++) {
251 (void) wattrset(data->window, menubox_attr); /* weeknumbers headline */
252 mvwprintw(data->window,
257 for (x = 0; x < 7; x++) {
258 this_x = 1 + (x + 1) * cell_wide;
260 if (wmove(data->window, y, this_x) == ERR)
262 (void) wattrset(data->window, item_attr); /* not selected days */
264 (void) wattrset(data->window, item_selected_attr); /* selected day */
270 wprintw(data->window, "%*d", cell_wide - 2, mday);
271 } else if (mday == day) {
272 wprintw(data->window, "%*d", cell_wide - 2, mday - last);
274 } else if (mday == day) {
275 wprintw(data->window, "%*d", cell_wide - 2, mday + prev);
278 wmove(data->window, save_y, save_x);
280 /* just draw arrows - scrollbar is unsuitable here */
281 dlg_draw_arrows(data->parent, TRUE, TRUE,
282 data->x + ARROWS_COL,
284 data->y + data->height);
290 * Draw the month-of-year selection box
293 draw_month(BOX * data, struct tm *current)
297 month = current->tm_mon + 1;
299 (void) wattrset(data->parent, dialog_attr); /* Headline "Month" */
300 (void) mvwprintw(data->parent, data->y - 2, data->x - 1, _("Month"));
301 dlg_draw_box2(data->parent,
302 data->y - 1, data->x - 1,
303 data->height + 2, data->width + 2,
306 menubox_border2_attr);
307 (void) wattrset(data->window, item_attr); /* color the month selection */
308 mvwprintw(data->window, 0, 0, "%s", nameOfMonth(month - 1));
309 wmove(data->window, 0, 0);
314 * Draw the year selection box
317 draw_year(BOX * data, struct tm *current)
319 int year = current->tm_year + 1900;
321 (void) wattrset(data->parent, dialog_attr); /* Headline "Year" */
322 (void) mvwprintw(data->parent, data->y - 2, data->x - 1, _("Year"));
323 dlg_draw_box2(data->parent,
324 data->y - 1, data->x - 1,
325 data->height + 2, data->width + 2,
328 menubox_border2_attr);
329 (void) wattrset(data->window, item_attr); /* color the year selection */
330 mvwprintw(data->window, 0, 0, "%4d", year);
331 wmove(data->window, 0, 0);
336 init_object(BOX * data,
339 int width, int height,
343 data->parent = parent;
347 data->height = height;
348 data->box_draw = box_draw;
350 data->window = derwin(data->parent,
351 data->height, data->width,
353 if (data->window == 0)
355 (void) keypad(data->window, TRUE);
357 dlg_mouse_setbase(getbegx(parent), getbegy(parent));
359 dlg_mouse_mkbigregion(y + 1, x + MON_WIDE, height - 1, width - MON_WIDE,
360 KEY_MAX, 1, MON_WIDE, 3);
362 dlg_mouse_mkregion(y, x, height, width, code);
369 CleanupResult(int code, WINDOW *dialog, char *prompt, DIALOG_VARS * save_vars)
372 dlg_del_window(dialog);
373 dlg_mouse_free_regions();
376 dlg_restore_vars(save_vars);
381 #define DrawObject(data) (data)->box_draw(data, ¤t)
384 * Display a dialog box for entering a date
387 dialog_calendar(const char *title,
388 const char *subtitle,
396 static DLG_KEYS_BINDING binding[] = {
399 DLG_KEYS_DATA( DLGK_ENTER, ' ' ),
400 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
401 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
402 DLG_KEYS_DATA( DLGK_GRID_DOWN, 'j' ),
403 DLG_KEYS_DATA( DLGK_GRID_DOWN, DLGK_MOUSE(KEY_NPAGE) ),
404 DLG_KEYS_DATA( DLGK_GRID_DOWN, KEY_DOWN ),
405 DLG_KEYS_DATA( DLGK_GRID_DOWN, KEY_NPAGE ),
406 DLG_KEYS_DATA( DLGK_GRID_LEFT, '-' ),
407 DLG_KEYS_DATA( DLGK_GRID_LEFT, 'h' ),
408 DLG_KEYS_DATA( DLGK_GRID_LEFT, CHR_BACKSPACE ),
409 DLG_KEYS_DATA( DLGK_GRID_LEFT, CHR_PREVIOUS ),
410 DLG_KEYS_DATA( DLGK_GRID_LEFT, KEY_LEFT ),
411 DLG_KEYS_DATA( DLGK_GRID_RIGHT, '+' ),
412 DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'l' ),
413 DLG_KEYS_DATA( DLGK_GRID_RIGHT, CHR_NEXT ),
414 DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_NEXT ),
415 DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_RIGHT ),
416 DLG_KEYS_DATA( DLGK_GRID_UP, 'k' ),
417 DLG_KEYS_DATA( DLGK_GRID_UP, KEY_PPAGE ),
418 DLG_KEYS_DATA( DLGK_GRID_UP, KEY_PREVIOUS ),
419 DLG_KEYS_DATA( DLGK_GRID_UP, KEY_UP ),
420 DLG_KEYS_DATA( DLGK_GRID_UP, DLGK_MOUSE(KEY_PPAGE) ),
426 int old_height = height;
427 int old_width = width;
429 BOX dy_box, mn_box, yr_box;
435 int result = DLG_EXIT_UNKNOWN;
437 time_t now_time = time((time_t *) 0);
439 int state = dlg_default_button();
440 const char **buttons = dlg_ok_labels();
441 char *prompt = dlg_strclone(subtitle);
442 int mincols = MIN_WIDE;
443 char buffer[MAX_LEN];
444 DIALOG_VARS save_vars;
446 dlg_save_vars(&save_vars);
447 dialog_vars.separate_output = TRUE;
451 now_time = time((time_t *) 0);
452 current = *localtime(&now_time);
454 day = current.tm_mday;
456 month = current.tm_mon + 1;
458 year = current.tm_year + 1900;
460 /* compute a struct tm that matches the day/month/year parameters */
461 if (((year -= 1900) > 0) && (year < 200)) {
462 /* ugly, but I'd like to run this on older machines w/o mktime -TD */
464 if (year > current.tm_year) {
465 now_time += ONE_DAY * days_in_year(¤t, 0);
466 } else if (year < current.tm_year) {
467 now_time -= ONE_DAY * days_in_year(¤t, -1);
468 } else if (month > current.tm_mon + 1) {
469 now_time += ONE_DAY * days_in_month(¤t, 0);
470 } else if (month < current.tm_mon + 1) {
471 now_time -= ONE_DAY * days_in_month(¤t, -1);
472 } else if (day > current.tm_mday) {
474 } else if (day < current.tm_mday) {
479 current = *localtime(&now_time);
482 dlg_button_layout(buttons, &mincols);
488 dlg_auto_size(title, prompt, &height, &width, 0, mincols);
489 height += MIN_HIGH - 1;
490 dlg_print_size(height, width);
491 dlg_ctl_size(height, width);
493 dialog = dlg_new_window(height, width,
494 dlg_box_y_ordinate(height),
495 dlg_box_x_ordinate(width));
496 dlg_register_window(dialog, "calendar", binding);
497 dlg_register_buttons(dialog, "calendar", buttons);
500 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
501 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
502 dlg_draw_title(dialog, title);
504 (void) wattrset(dialog, dialog_attr); /* text mainbox */
505 dlg_print_autowrap(dialog, prompt, height, width);
507 /* compute positions of day, month and year boxes */
508 memset(&dy_box, 0, sizeof(dy_box));
509 memset(&mn_box, 0, sizeof(mn_box));
510 memset(&yr_box, 0, sizeof(yr_box));
512 if (init_object(&dy_box,
514 (width - DAY_WIDE) / 2,
515 1 + (height - (DAY_HIGH + BTN_HIGH + (5 * MARGIN))),
520 || DrawObject(&dy_box) < 0) {
521 return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
524 if (init_object(&mn_box,
527 dy_box.y - (HDR_HIGH + 2 * MARGIN),
528 (DAY_WIDE / 2) - MARGIN,
532 || DrawObject(&mn_box) < 0) {
533 return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
536 if (init_object(&yr_box,
538 dy_box.x + mn_box.width + 2,
544 || DrawObject(&yr_box) < 0) {
545 return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
548 dlg_trace_win(dialog);
549 while (result == DLG_EXIT_UNKNOWN) {
550 BOX *obj = (state == sDAY ? &dy_box
551 : (state == sMONTH ? &mn_box :
552 (state == sYEAR ? &yr_box : 0)));
554 button = (state < 0) ? 0 : state;
555 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
557 dlg_set_focus(dialog, obj->window);
559 key = dlg_mouse_wgetch(dialog, &fkey);
560 if (dlg_result_key(key, fkey, &result))
563 if (fkey && (key >= DLGK_MOUSE(KEY_MIN) && key <= DLGK_MOUSE(KEY_MAX))) {
564 key = dlg_lookup_key(dialog, key - M_EVENT, &fkey);
567 if ((key2 = dlg_char_to_button(key, buttons)) >= 0) {
570 /* handle function-keys */
572 case DLGK_MOUSE('D'):
575 case DLGK_MOUSE('M'):
578 case DLGK_MOUSE('Y'):
582 result = dlg_enter_buttoncode(button);
584 case DLGK_FIELD_PREV:
585 state = dlg_prev_ok_buttonindex(state, sMONTH);
587 case DLGK_FIELD_NEXT:
588 state = dlg_next_ok_buttonindex(state, sMONTH);
597 dlg_del_window(dialog);
599 dlg_mouse_free_regions();
605 if (is_DLGK_MOUSE(key)) {
606 if ((key2 = dlg_ok_buttoncode(key - M_EVENT)) >= 0) {
609 } else if (key >= DLGK_MOUSE(KEY_MAX)) {
614 - DLGK_MOUSE(KEY_MAX)
615 - day_cell_number(¤t));
620 step = next_or_previous(key, (obj == &dy_box));
622 struct tm old = current;
624 /* see comment regarding mktime -TD */
625 if (obj == &dy_box) {
626 now_time += ONE_DAY * step;
627 } else if (obj == &mn_box) {
629 now_time += ONE_DAY *
630 days_in_month(¤t, 0);
632 now_time -= ONE_DAY *
633 days_in_month(¤t, -1);
634 } else if (obj == &yr_box) {
637 * days_in_year(¤t, 0));
640 * days_in_year(¤t, -1));
643 current = *localtime(&now_time);
646 && (current.tm_mday != old.tm_mday
647 || current.tm_mon != old.tm_mon
648 || current.tm_year != old.tm_year))
650 if (obj != &mn_box && current.tm_mon != old.tm_mon)
652 if (obj != &yr_box && current.tm_year != old.tm_year)
654 (void) DrawObject(obj);
656 } else if (state >= 0) {
657 if (next_or_previous(key, FALSE) < 0)
658 state = dlg_prev_ok_buttonindex(state, sMONTH);
659 else if (next_or_previous(key, FALSE) > 0)
660 state = dlg_next_ok_buttonindex(state, sMONTH);
667 #define DefaultFormat(dst, src) \
668 sprintf(dst, "%02d/%02d/%0d", \
669 src.tm_mday, src.tm_mon + 1, src.tm_year + 1900)
671 if (dialog_vars.date_format != 0) {
672 size_t used = strftime(buffer,
674 dialog_vars.date_format,
676 if (used == 0 || *buffer == '\0')
677 DefaultFormat(buffer, current);
680 DefaultFormat(buffer, current);
682 dlg_add_result(buffer);
684 dlg_add_last_key(-1);
686 return CleanupResult(result, dialog, prompt, &save_vars);