2 * This file is a part of hildon
4 * Copyright (C) 2005, 2008 Nokia Corporation.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version. or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free
18 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * SECTION:hildon-date-selector
23 * @short_description: A widget to select the current date.
25 * HildonDateSelector is a date widget, equivalent to hildon-calendar, but with a multi-column
30 #define _GNU_SOURCE /* needed for GNU nl_langinfo_l */
31 #define __USE_GNU /* needed for locale */
35 #ifdef HAVE_SYS_TIME_H
46 #include "hildon-date-selector.h"
48 #define HILDON_DATE_SELECTOR_GET_PRIVATE(obj) \
49 (G_TYPE_INSTANCE_GET_PRIVATE ((obj), HILDON_TYPE_DATE_SELECTOR, HildonDateSelectorPrivate))
51 G_DEFINE_TYPE (HildonDateSelector, hildon_date_selector, HILDON_TYPE_TOUCH_SELECTOR)
54 #define LAST_YEAR 50 /* since current year */
56 #define _(String) dgettext("hildon-libs", String)
58 /* #define _(String) "%A %e. %B %Y" debug purposes */
74 struct _HildonDateSelectorPrivate
76 GtkTreeModel *year_model;
77 GtkTreeModel *month_model;
78 GtkTreeModel *day_model;
83 gint year_column; /* it depends on the locale */
85 gchar *format; /* day/month/year format, depends on locale */
89 gint creation_year; /* date at creation time */
91 gint current_num_days;
94 static void hildon_date_selector_finalize (GObject * object);
96 /* private functions */
97 static GtkTreeModel *_create_day_model (HildonDateSelector * selector);
98 static GtkTreeModel *_create_year_model (HildonDateSelector * selector);
99 static GtkTreeModel *_create_month_model (HildonDateSelector * selector);
101 static void _get_real_date (gint * year, gint * month, gint * day);
102 static void _locales_init (HildonDateSelectorPrivate * priv);
104 static void _manage_selector_change_cb (HildonTouchSelector * selector,
105 gint num_column, gpointer data);
107 static GtkTreeModel *_update_day_model (HildonDateSelector * selector);
109 static gint _month_days (gint month, gint year);
110 static void _init_column_order (HildonDateSelector * selector);
112 static gchar *_custom_print_func (HildonTouchSelector * selector);
114 /***************************************************************************/
115 /* The following date routines are taken from the lib_date package. Keep
116 * them separate in case we want to update them if a newer lib_date comes
119 typedef unsigned int N_int;
121 typedef unsigned long N_long;
123 typedef signed long Z_long;
126 { false = FALSE, true = TRUE } boolean;
128 #define and && /* logical (boolean) operators: lower case */
132 static const N_int month_length[2][13] = {
133 {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
134 {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
137 static const N_int days_in_months[2][14] = {
138 {0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
139 {0, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366}
142 static Z_long _calc_days (N_int year, N_int mm, N_int dd);
144 static N_int _day_of_week (N_int year, N_int mm, N_int dd);
146 static boolean _leap (N_int year);
152 return ((((year % 4) == 0) and ((year % 100) != 0)) or ((year % 400) == 0));
156 _day_of_week (N_int year, N_int mm, N_int dd)
160 days = _calc_days (year, mm, dd);
166 return ((N_int) days);
170 _year_to_days (N_int year)
172 return (year * 365L + (year / 4) - (year / 100) + (year / 400));
176 _calc_days (N_int year, N_int mm, N_int dd)
182 if ((mm < 1) or (mm > 12))
184 if ((dd < 1) or (dd > month_length[(lp = _leap (year))][mm]))
186 return (_year_to_days (--year) + days_in_months[lp][mm] + dd);
190 hildon_date_selector_class_init (HildonDateSelectorClass * class)
192 GObjectClass *gobject_class;
193 GtkObjectClass *object_class;
194 GtkWidgetClass *widget_class;
195 GtkContainerClass *container_class;
197 gobject_class = (GObjectClass *) class;
198 object_class = (GtkObjectClass *) class;
199 widget_class = (GtkWidgetClass *) class;
200 container_class = (GtkContainerClass *) class;
203 gobject_class->finalize = hildon_date_selector_finalize;
211 g_type_class_add_private (object_class, sizeof (HildonDateSelectorPrivate));
215 hildon_date_selector_init (HildonDateSelector * selector)
218 gint current_item = 0;
219 HildonTouchSelectorColumn *column = NULL;
221 selector->priv = HILDON_DATE_SELECTOR_GET_PRIVATE (selector);
223 GTK_WIDGET_SET_FLAGS (GTK_WIDGET (selector), GTK_NO_WINDOW);
224 gtk_widget_set_redraw_on_allocate (GTK_WIDGET (selector), FALSE);
226 hildon_touch_selector_set_print_func (HILDON_TOUCH_SELECTOR (selector),
229 _locales_init (selector->priv);
231 _init_column_order (selector);
233 _get_real_date (&selector->priv->creation_year,
234 &selector->priv->creation_month, &selector->priv->creation_day);
236 selector->priv->year_model = _create_year_model (selector);
237 selector->priv->month_model = _create_month_model (selector);
238 selector->priv->day_model = _create_day_model (selector);
239 selector->priv->current_num_days = 31;
241 /* We add the columns, checking the locale order */
242 iter = selector->priv->column_order;
243 for (iter = selector->priv->column_order; iter; iter = g_slist_next (iter)) {
244 current_item = GPOINTER_TO_INT (iter->data);
246 switch (current_item) {
248 column = hildon_touch_selector_append_text_column (HILDON_TOUCH_SELECTOR (selector),
249 selector->priv->day_model, TRUE);
250 g_object_set (G_OBJECT (column), "text-column", 0, NULL);
253 column = hildon_touch_selector_append_text_column (HILDON_TOUCH_SELECTOR (selector),
254 selector->priv->month_model, TRUE);
255 g_object_set (G_OBJECT (column), "text-column", 0, NULL);
258 column = hildon_touch_selector_append_text_column (HILDON_TOUCH_SELECTOR (selector),
259 selector->priv->year_model, TRUE);
260 g_object_set (G_OBJECT (column), "text-column", 0, NULL);
263 g_error ("Current column order incorrect");
268 g_signal_connect (G_OBJECT (selector),
269 "changed", G_CALLBACK (_manage_selector_change_cb), NULL);
271 /* By default we should select the current day */
272 hildon_date_selector_select_current_date (selector, selector->priv->creation_year,
273 selector->priv->creation_month,
274 selector->priv->creation_day);
278 hildon_date_selector_finalize (GObject * object)
280 HildonDateSelector *selector = NULL;
282 selector = HILDON_DATE_SELECTOR (object);
284 g_slist_free (selector->priv->column_order);
285 g_free (selector->priv->format);
287 (*G_OBJECT_CLASS (hildon_date_selector_parent_class)->finalize) (object);
290 /* ------------------------------ PRIVATE METHODS ---------------------------- */
292 _custom_print_func (HildonTouchSelector * touch_selector)
294 HildonDateSelector *selector = NULL;
295 gchar *result = NULL;
296 guint year, month, day;
297 gint day_of_week = 0;
298 static gchar string[255];
299 struct tm tm = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
301 selector = HILDON_DATE_SELECTOR (touch_selector);
303 hildon_date_selector_get_date (selector, &year, &month, &day);
304 day_of_week = _day_of_week (year, month + 1, day) % 7;
308 tm.tm_year = year - 1900;
309 tm.tm_wday = day_of_week;
311 strftime (string, 255, _("wdgt_va_date_long"), &tm);
313 result = g_strdup (string);
318 /* This was copied from hildon-calendar */
320 _locales_init (HildonDateSelectorPrivate * priv)
322 /* Hildon: This is not exactly portable, see
323 * http://bugzilla.gnome.org/show_bug.cgi?id=343415
324 * The labels need to be instance variables as the startup wizard changes
329 l = newlocale (LC_TIME_MASK, setlocale (LC_MESSAGES, NULL), NULL);
331 priv->format = g_locale_to_utf8 (nl_langinfo_l (D_FMT, l),
332 -1, NULL, NULL, NULL);
338 _init_column_order (HildonDateSelector * selector)
340 gchar *current_order[3] = { NULL, NULL, NULL };
341 gchar *day_pos = NULL;
342 gchar *month_pos = NULL;
343 gchar *year_pos = NULL;
347 g_debug ("Current format: %s", selector->priv->format);
349 /* search each token on the format */
350 day_pos = g_strrstr (selector->priv->format, "%d");
352 month_pos = g_strrstr (selector->priv->format, "%m");
353 year_pos = g_strrstr (selector->priv->format, "%y");
354 if (year_pos == NULL) {
355 year_pos = g_strrstr (selector->priv->format, "%Y");
359 if ((day_pos == NULL) || (month_pos == NULL) || (year_pos == NULL)) {
360 g_error ("Wrong date format"); /* so default values */
362 selector->priv->day_column = 0;
363 selector->priv->month_column = 1;
364 selector->priv->year_column = 2;
365 selector->priv->column_order = g_slist_append (NULL, GINT_TO_POINTER (DAY));
366 selector->priv->column_order =
367 g_slist_append (selector->priv->column_order, GINT_TO_POINTER (MONTH));
368 selector->priv->column_order =
369 g_slist_append (selector->priv->column_order, GINT_TO_POINTER (YEAR));
372 /* sort current_order with this values (bubble sort) */
373 current_order[0] = day_pos;
374 current_order[1] = month_pos;
375 current_order[2] = year_pos;
377 for (c = 1; c <= 2; c++) {
378 for (i = 0; i < 3 - c; i++) {
379 if (current_order[i] > current_order[i + 1]) {
380 aux = current_order[i];
381 current_order[i] = current_order[i + 1];
382 current_order[i + 1] = aux;
387 /* fill the column positions */
388 selector->priv->column_order = NULL;
390 for (i = 0; i < 3; i++) {
391 if (current_order[i] == day_pos) {
392 selector->priv->column_order =
393 g_slist_append (selector->priv->column_order, GINT_TO_POINTER (DAY));
394 selector->priv->day_column = c++;
396 if (current_order[i] == month_pos) {
397 selector->priv->column_order =
398 g_slist_append (selector->priv->column_order, GINT_TO_POINTER (MONTH));
399 selector->priv->month_column = c++;
401 if (current_order[i] == year_pos) {
402 selector->priv->column_order =
403 g_slist_append (selector->priv->column_order, GINT_TO_POINTER (YEAR));
404 selector->priv->year_column = c++;
410 static GtkTreeModel *
411 _create_day_model (HildonDateSelector * selector)
413 GtkListStore *store_days = NULL;
416 struct tm tm = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
419 store_days = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
420 for (i = 1; i < 32; i++) {
422 strftime (label, 255, _("wdgt_va_day_numeric"), &tm);
424 gtk_list_store_append (store_days, &iter);
425 gtk_list_store_set (store_days, &iter,
426 COLUMN_STRING, label, COLUMN_INT, i, -1);
429 return GTK_TREE_MODEL (store_days);
432 static GtkTreeModel *
433 _create_year_model (HildonDateSelector * selector)
435 GtkListStore *store_years = NULL;
438 static gchar label[255];
439 struct tm tm = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
442 real_year = selector->priv->creation_year;
444 store_years = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
445 for (i = real_year - INIT_YEAR; i < real_year + LAST_YEAR; i++) {
446 tm.tm_year = i - 1900;
447 strftime (label, 255, _("wdgt_va_year"), &tm);
449 gtk_list_store_append (store_years, &iter);
450 gtk_list_store_set (store_years, &iter,
451 COLUMN_STRING, label, COLUMN_INT, i, -1);
454 return GTK_TREE_MODEL (store_years);
457 static GtkTreeModel *
458 _create_month_model (HildonDateSelector * selector)
462 GtkListStore *store_months = NULL;
463 static gchar label[255];
464 struct tm tm = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
466 store_months = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
467 for (i = 0; i < 12; i++) {
469 strftime (label, 255, _("wdgt_va_month"), &tm);
471 gtk_list_store_append (store_months, &iter);
472 gtk_list_store_set (store_months, &iter, COLUMN_STRING, label,
477 return GTK_TREE_MODEL (store_months);
480 static GtkTreeModel *
481 _update_day_model (HildonDateSelector * selector)
483 GtkListStore *store_days = NULL;
484 GtkTreePath *path = NULL;
487 static gchar label[255];
488 struct tm tm = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
489 guint current_day = 0;
490 guint current_year = 0;
491 guint current_month = 0;
494 hildon_date_selector_get_date (selector, ¤t_year, ¤t_month,
497 num_days = _month_days (current_month, current_year);
498 store_days = GTK_LIST_STORE (selector->priv->day_model);
500 if (num_days == selector->priv->current_num_days) {
501 return GTK_TREE_MODEL (store_days);
504 if (num_days > selector->priv->current_num_days) {
505 for (i = selector->priv->current_num_days + 1; i <= num_days; i++) {
507 strftime (label, 255, _("wdgt_va_day_numeric"), &tm);
509 gtk_list_store_append (store_days, &iter);
510 gtk_list_store_set (store_days, &iter,
511 COLUMN_STRING, label, COLUMN_INT, i, -1);
514 path = gtk_tree_path_new_from_indices (num_days,
516 gtk_tree_model_get_iter (GTK_TREE_MODEL (store_days), &iter, path);
518 }while (gtk_list_store_remove (store_days, &iter));
520 gtk_tree_path_free (path);
524 selector->priv->current_num_days = num_days;
526 /* now we select a day */
527 if (current_day >= num_days) {
528 current_day = num_days;
531 hildon_date_selector_select_day (selector, current_day);
533 return GTK_TREE_MODEL (store_days);
538 _get_real_date (gint * year, gint * month, gint * day)
541 struct tm *tm = NULL;
544 tm = localtime (&secs);
547 *year = 1900 + tm->tm_year;
561 _manage_selector_change_cb (HildonTouchSelector * touch_selector,
562 gint num_column, gpointer data)
564 HildonDateSelector *selector = NULL;
566 g_return_if_fail (HILDON_IS_DATE_SELECTOR (touch_selector));
567 selector = HILDON_DATE_SELECTOR (touch_selector);
569 if ((num_column == selector->priv->month_column) ||
570 (num_column == selector->priv->year_column)) /* it is required to check that with
571 * the years too,remember: leap years
572 * update_day_model will check if
573 * the number of days is different
576 _update_day_model (selector);
581 _month_days (gint month, gint year)
583 gint month_days[2][12] = {
584 {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
585 {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
588 g_return_val_if_fail (month >= 0 && month <= 12, -1);
590 return month_days[_leap (year)][month];
594 /* ------------------------------ PUBLIC METHODS ---------------------------- */
597 * hildon_date_selector_new:
599 * Creates a new #HildonDateSelector
601 * Returns: a new #HildonDateSelector
606 hildon_date_selector_new ()
608 return g_object_new (HILDON_TYPE_DATE_SELECTOR, NULL);
613 * hildon_date_selector_select_current_date:
614 * @selector: the #HildonDateSelector
615 * @year: the current year
616 * @month: the current month (0-11)
617 * @day: the current day (1-31, 1-30, 1-29, 1-28) depends on the month
619 * Sets the current active date on the #HildonDateSelector widget
623 * Returns: %TRUE on success, %FALSE otherwise
626 hildon_date_selector_select_current_date (HildonDateSelector * selector,
627 guint year, guint month, guint day)
634 min_year = selector->priv->creation_year - INIT_YEAR;
635 max_year = selector->priv->creation_year + LAST_YEAR;
637 g_return_val_if_fail (year > min_year && year < max_year, FALSE);
638 g_return_val_if_fail (month >= 0 && month < 12, FALSE);
640 num_days = _month_days (month, year);
641 g_return_val_if_fail (day > 0 && day <= num_days, FALSE);
644 gtk_tree_model_iter_nth_child (selector->priv->year_model, &iter, NULL,
645 year - selector->priv->creation_year +
647 hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector),
648 selector->priv->year_column, &iter,
651 gtk_tree_model_iter_nth_child (selector->priv->month_model, &iter, NULL,
653 hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector),
654 selector->priv->month_column, &iter,
657 gtk_tree_model_iter_nth_child (selector->priv->day_model, &iter, NULL,
659 hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector),
660 selector->priv->day_column, &iter,
668 * hildon_date_selector_get_date:
669 * @selector: the #HildonDateSelector
670 * @year: to set the current year
671 * @month: to set the current month (0-11)
672 * @day: to the current day (1-31, 1-30, 1-29, 1-28) depends on the month
674 * Gets the current active date on the #HildonDateSelector widget
679 hildon_date_selector_get_date (HildonDateSelector * selector,
680 guint * year, guint * month, guint * day)
685 hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector),
686 selector->priv->year_column, &iter);
687 gtk_tree_model_get (selector->priv->year_model,
688 &iter, COLUMN_INT, year, -1);
692 hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector),
693 selector->priv->month_column, &iter);
694 gtk_tree_model_get (selector->priv->month_model,
695 &iter, COLUMN_INT, month, -1);
700 if (hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector),
701 selector->priv->day_column, &iter))
703 gtk_tree_model_get (selector->priv->day_model,
704 &iter, COLUMN_INT, day, -1);
706 /* *day = *day - 1; */
713 * hildon_date_selector_select_month:
714 * @selector: the #HildonDateSelector
715 * @month: the current month (0-11)
716 * @year: the current year
718 * Modify the current month and year on the current active date
720 * Utility function, too keep this API more similar to the previously existing
721 * hildon-calendar widget.
725 * Returns: %TRUE on success, %FALSE otherwise
727 gboolean hildon_date_selector_select_month (HildonDateSelector *selector,
728 guint month, guint year)
732 hildon_date_selector_get_date (selector, NULL, NULL, &day);
734 return hildon_date_selector_select_current_date (selector, year, month, day);
738 * hildon_date_selector_select_day:
739 * @selector: the #HildonDateSelector
740 * @day: the current day (1-31, 1-30, 1-29, 1-28) depends on the month
742 * Modify the current day on the current active date
744 * Utility function, too keep this API more similar to the previously existing
745 * hildon-calendar widget.
750 hildon_date_selector_select_day (HildonDateSelector *selector, guint day)
755 hildon_date_selector_get_date (selector, &year, &month, NULL);
757 hildon_date_selector_select_current_date (selector, year, month, day);