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gtk2/gtk/gtkcalendar.c
Matthias Clasen c693b5d641 Another attempt to correct the calculations for the first week day. We may 
2005-09-30  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtkcalendar.c (gtk_calendar_init): Another attempt
	to correct the calculations for the first week day. We may
	just have to remove this code if too many locales turn out
	to have broken data.
2005-09-30 17:53:19 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GTK Calendar Widget
* Copyright (C) 1998 Cesar Miquel, Shawn T. Amundson and Mattias Groenlund
*
* lib_date routines
* Copyright (c) 1995, 1996, 1997, 1998 by Steffen Beyer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE__NL_TIME_FIRST_WEEKDAY
#include <langinfo.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <glib/gprintf.h>
#undef GTK_DISABLE_DEPRECATED
#include "gtkcalendar.h"
#define GTK_DISABLE_DEPRECATED
#include "gtkdnd.h"
#include "gtkintl.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtkintl.h"
#include "gdk/gdkkeysyms.h"
#include "gtkalias.h"
/***************************************************************************/
/* The following date routines are taken from the lib_date package. Keep
* them separate in case we want to update them if a newer lib_date comes
* out with fixes. */
typedef unsigned int N_int;
typedef unsigned long N_long;
typedef signed long Z_long;
typedef enum { false = FALSE , true = TRUE } boolean;
#define and && /* logical (boolean) operators: lower case */
#define or ||
static const N_int month_length[2][13] =
{
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
};
static const N_int days_in_months[2][14] =
{
{ 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
{ 0, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
};
static Z_long calc_days(N_int year, N_int mm, N_int dd);
static N_int day_of_week(N_int year, N_int mm, N_int dd);
static Z_long dates_difference(N_int year1, N_int mm1, N_int dd1,
N_int year2, N_int mm2, N_int dd2);
static N_int weeks_in_year(N_int year);
static boolean
leap(N_int year)
{
return((((year % 4) == 0) and ((year % 100) != 0)) or ((year % 400) == 0));
}
static N_int
day_of_week(N_int year, N_int mm, N_int dd)
{
Z_long days;
days = calc_days(year, mm, dd);
if (days > 0L)
{
days--;
days %= 7L;
days++;
}
return( (N_int) days );
}
static N_int weeks_in_year(N_int year)
{
return(52 + ((day_of_week(year,1,1)==4) or (day_of_week(year,12,31)==4)));
}
static boolean
check_date(N_int year, N_int mm, N_int dd)
{
if (year < 1) return(false);
if ((mm < 1) or (mm > 12)) return(false);
if ((dd < 1) or (dd > month_length[leap(year)][mm])) return(false);
return(true);
}
static N_int
week_number(N_int year, N_int mm, N_int dd)
{
N_int first;
first = day_of_week(year,1,1) - 1;
return( (N_int) ( (dates_difference(year,1,1, year,mm,dd) + first) / 7L ) +
(first < 4) );
}
static Z_long
year_to_days(N_int year)
{
return( year * 365L + (year / 4) - (year / 100) + (year / 400) );
}
static Z_long
calc_days(N_int year, N_int mm, N_int dd)
{
boolean lp;
if (year < 1) return(0L);
if ((mm < 1) or (mm > 12)) return(0L);
if ((dd < 1) or (dd > month_length[(lp = leap(year))][mm])) return(0L);
return( year_to_days(--year) + days_in_months[lp][mm] + dd );
}
static boolean
week_of_year(N_int *week, N_int *year, N_int mm, N_int dd)
{
if (check_date(*year,mm,dd))
{
*week = week_number(*year,mm,dd);
if (*week == 0)
*week = weeks_in_year(--(*year));
else if (*week > weeks_in_year(*year))
{
*week = 1;
(*year)++;
}
return(true);
}
return(false);
}
static Z_long
dates_difference(N_int year1, N_int mm1, N_int dd1,
N_int year2, N_int mm2, N_int dd2)
{
return( calc_days(year2, mm2, dd2) - calc_days(year1, mm1, dd1) );
}
/*** END OF lib_date routines ********************************************/
/* Spacing around day/week headers and main area, inside those windows */
#define CALENDAR_MARGIN 0
/* Spacing around day/week headers and main area, outside those windows */
#define INNER_BORDER 4
/* Separation between day headers and main area */
#define CALENDAR_YSEP 4
/* Separation between week headers and main area */
#define CALENDAR_XSEP 4
#define DAY_XSEP 0 /* not really good for small calendar */
#define DAY_YSEP 0 /* not really good for small calendar */
/* Color usage */
#define HEADER_FG_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define HEADER_BG_COLOR(widget) (& (widget)->style->bg[GTK_WIDGET_STATE (widget)])
#define SELECTED_BG_COLOR(widget) (& (widget)->style->base[GTK_WIDGET_HAS_FOCUS (widget) ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE])
#define SELECTED_FG_COLOR(widget) (& (widget)->style->text[GTK_WIDGET_HAS_FOCUS (widget) ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE])
#define NORMAL_DAY_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define PREV_MONTH_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
#define NEXT_MONTH_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
#define MARKED_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define BACKGROUND_COLOR(widget) (& (widget)->style->base[GTK_WIDGET_STATE (widget)])
#define HIGHLIGHT_BACK_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
enum {
ARROW_YEAR_LEFT,
ARROW_YEAR_RIGHT,
ARROW_MONTH_LEFT,
ARROW_MONTH_RIGHT
};
enum {
MONTH_PREV,
MONTH_CURRENT,
MONTH_NEXT
};
enum {
MONTH_CHANGED_SIGNAL,
DAY_SELECTED_SIGNAL,
DAY_SELECTED_DOUBLE_CLICK_SIGNAL,
PREV_MONTH_SIGNAL,
NEXT_MONTH_SIGNAL,
PREV_YEAR_SIGNAL,
NEXT_YEAR_SIGNAL,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_YEAR,
PROP_MONTH,
PROP_DAY,
PROP_SHOW_HEADING,
PROP_SHOW_DAY_NAMES,
PROP_NO_MONTH_CHANGE,
PROP_SHOW_WEEK_NUMBERS,
PROP_LAST
};
static guint gtk_calendar_signals[LAST_SIGNAL] = { 0 };
struct _GtkCalendarPrivate
{
GdkWindow *header_win;
GdkWindow *day_name_win;
GdkWindow *main_win;
GdkWindow *week_win;
GdkWindow *arrow_win[4];
guint header_h;
guint day_name_h;
guint main_h;
guint arrow_state[4];
guint arrow_width;
guint max_month_width;
guint max_year_width;
guint day_width;
guint week_width;
guint min_day_width;
guint max_day_char_width;
guint max_day_char_ascent;
guint max_day_char_descent;
guint max_label_char_ascent;
guint max_label_char_descent;
guint max_week_char_width;
/* flags */
guint year_before : 1;
guint need_timer : 1;
guint in_drag : 1;
guint drag_highlight : 1;
guint32 timer;
gint click_child;
gint week_start;
gint drag_start_x;
gint drag_start_y;
};
#define GTK_CALENDAR_GET_PRIVATE(widget) (GTK_CALENDAR (widget)->priv)
static void gtk_calendar_finalize (GObject *calendar);
static void gtk_calendar_destroy (GtkObject *calendar);
static void gtk_calendar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_calendar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_calendar_realize (GtkWidget *widget);
static void gtk_calendar_unrealize (GtkWidget *widget);
static void gtk_calendar_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_calendar_expose (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_calendar_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_calendar_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gtk_calendar_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_calendar_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_calendar_scroll (GtkWidget *widget,
GdkEventScroll *event);
static gboolean gtk_calendar_key_press (GtkWidget *widget,
GdkEventKey *event);
static gboolean gtk_calendar_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_calendar_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_calendar_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static void gtk_calendar_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_calendar_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_calendar_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time);
static gboolean gtk_calendar_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void gtk_calendar_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean gtk_calendar_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void calendar_start_spinning (GtkCalendar *calendar,
gint click_child);
static void calendar_stop_spinning (GtkCalendar *calendar);
static void calendar_invalidate_day (GtkCalendar *widget,
gint row,
gint col);
static void calendar_invalidate_day_num (GtkCalendar *widget,
gint day);
static void calendar_invalidate_arrow (GtkCalendar *widget,
guint arrow);
static void calendar_compute_days (GtkCalendar *calendar);
static char *default_abbreviated_dayname[7];
static char *default_monthname[12];
G_DEFINE_TYPE (GtkCalendar, gtk_calendar, GTK_TYPE_WIDGET)
static void
gtk_calendar_class_init (GtkCalendarClass *class)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
gobject_class = (GObjectClass*) class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
gobject_class->set_property = gtk_calendar_set_property;
gobject_class->get_property = gtk_calendar_get_property;
gobject_class->finalize = gtk_calendar_finalize;
object_class->destroy = gtk_calendar_destroy;
widget_class->realize = gtk_calendar_realize;
widget_class->unrealize = gtk_calendar_unrealize;
widget_class->expose_event = gtk_calendar_expose;
widget_class->size_request = gtk_calendar_size_request;
widget_class->size_allocate = gtk_calendar_size_allocate;
widget_class->button_press_event = gtk_calendar_button_press;
widget_class->button_release_event = gtk_calendar_button_release;
widget_class->motion_notify_event = gtk_calendar_motion_notify;
widget_class->enter_notify_event = gtk_calendar_enter_notify;
widget_class->leave_notify_event = gtk_calendar_leave_notify;
widget_class->key_press_event = gtk_calendar_key_press;
widget_class->scroll_event = gtk_calendar_scroll;
widget_class->style_set = gtk_calendar_style_set;
widget_class->state_changed = gtk_calendar_state_changed;
widget_class->grab_notify = gtk_calendar_grab_notify;
widget_class->focus_out_event = gtk_calendar_focus_out;
widget_class->drag_data_get = gtk_calendar_drag_data_get;
widget_class->drag_motion = gtk_calendar_drag_motion;
widget_class->drag_leave = gtk_calendar_drag_leave;
widget_class->drag_drop = gtk_calendar_drag_drop;
widget_class->drag_data_received = gtk_calendar_drag_data_received;
g_object_class_install_property (gobject_class,
PROP_YEAR,
g_param_spec_int ("year",
P_("Year"),
P_("The selected year"),
0, G_MAXINT, 0,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_MONTH,
g_param_spec_int ("month",
P_("Month"),
P_("The selected month (as a number between 0 and 11)"),
0, 11, 0,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_DAY,
g_param_spec_int ("day",
P_("Day"),
P_("The selected day (as a number between 1 and 31, or 0 to unselect the currently selected day)"),
0, 31, 0,
GTK_PARAM_READWRITE));
/**
* GtkCalendar:show-heading:
*
* Determines whether a heading is displayed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_HEADING,
g_param_spec_boolean ("show-heading",
P_("Show Heading"),
P_("If TRUE, a heading is displayed"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkCalendar:show-day-names:
*
* Determines whether day names are displayed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_DAY_NAMES,
g_param_spec_boolean ("show-day-names",
P_("Show Day Names"),
P_("If TRUE, day names are displayed"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkCalendar:no-month-change:
*
* Determines whether the selected month can be changed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_NO_MONTH_CHANGE,
g_param_spec_boolean ("no-month-change",
P_("No Month Change"),
P_("If TRUE, the selected month cannot be changed"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkCalendar:show-week-numbers:
*
* Determines whether week numbers are displayed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_WEEK_NUMBERS,
g_param_spec_boolean ("show-week-numbers",
P_("Show Week Numbers"),
P_("If TRUE, week numbers are displayed"),
FALSE,
GTK_PARAM_READWRITE));
gtk_calendar_signals[MONTH_CHANGED_SIGNAL] =
g_signal_new (I_("month_changed"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, month_changed),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_calendar_signals[DAY_SELECTED_SIGNAL] =
g_signal_new (I_("day_selected"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, day_selected),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_calendar_signals[DAY_SELECTED_DOUBLE_CLICK_SIGNAL] =
g_signal_new (I_("day_selected_double_click"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, day_selected_double_click),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_calendar_signals[PREV_MONTH_SIGNAL] =
g_signal_new (I_("prev_month"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, prev_month),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_calendar_signals[NEXT_MONTH_SIGNAL] =
g_signal_new (I_("next_month"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, next_month),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_calendar_signals[PREV_YEAR_SIGNAL] =
g_signal_new (I_("prev_year"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, prev_year),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_calendar_signals[NEXT_YEAR_SIGNAL] =
g_signal_new (I_("next_year"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkCalendarClass, next_year),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_type_class_add_private (gobject_class, sizeof (GtkCalendarPrivate));
}
static void
gtk_calendar_init (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
time_t secs;
struct tm *tm;
gint i;
char buffer[255];
time_t tmp_time;
GtkCalendarPrivate *priv;
gchar *year_before;
gchar *langinfo;
gint week_1stday = 0;
gint first_weekday = 1;
guint week_origin;
priv = calendar->priv = G_TYPE_INSTANCE_GET_PRIVATE (calendar,
GTK_TYPE_CALENDAR,
GtkCalendarPrivate);
GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
if (!default_abbreviated_dayname[0])
for (i=0; i<7; i++)
{
tmp_time= (i+3)*86400;
strftime ( buffer, sizeof (buffer), "%a", gmtime (&tmp_time));
default_abbreviated_dayname[i] = g_locale_to_utf8 (buffer, -1, NULL, NULL, NULL);
}
if (!default_monthname[0])
for (i=0; i<12; i++)
{
tmp_time=i*2764800;
strftime ( buffer, sizeof (buffer), "%B", gmtime (&tmp_time));
default_monthname[i] = g_locale_to_utf8 (buffer, -1, NULL, NULL, NULL);
}
/* Set defaults */
secs = time (NULL);
tm = localtime (&secs);
calendar->month = tm->tm_mon;
calendar->year = 1900 + tm->tm_year;
calendar_compute_days (calendar);
for (i=0;i<31;i++)
calendar->marked_date[i] = FALSE;
calendar->num_marked_dates = 0;
calendar->selected_day = tm->tm_mday;
calendar->display_flags = ( GTK_CALENDAR_SHOW_HEADING |
GTK_CALENDAR_SHOW_DAY_NAMES );
calendar->highlight_row = -1;
calendar->highlight_col = -1;
calendar->focus_row = -1;
calendar->focus_col = -1;
priv->max_year_width = 0;
priv->max_month_width = 0;
priv->max_day_char_width = 0;
priv->max_week_char_width = 0;
priv->max_day_char_ascent = 0;
priv->max_day_char_descent = 0;
priv->max_label_char_ascent = 0;
priv->max_label_char_descent = 0;
priv->arrow_width = 10;
priv->need_timer = 0;
priv->timer = 0;
priv->click_child = -1;
priv->in_drag = 0;
priv->drag_highlight = 0;
gtk_drag_dest_set (widget, 0, NULL, 0, GDK_ACTION_COPY);
gtk_drag_dest_add_text_targets (widget);
priv->year_before = 0;
/* Translate to calendar:YM if you want years to be displayed
* before months; otherwise translate to calendar:MY.
* Do *not* translate it to anything else, if it
* it isn't calendar:YM or calendar:MY it will not work.
*
* Note that this flipping is in top the text direction flipping,
* so if you have a default text direction of RTL and YM, then
* the year will appear on the right.
*/
year_before = _("calendar:MY");
if (strcmp (year_before, "calendar:YM") == 0)
priv->year_before = 1;
else if (strcmp (year_before, "calendar:MY") != 0)
g_warning ("Whoever translated calendar:MY did so wrongly.\n");
#ifdef HAVE__NL_TIME_FIRST_WEEKDAY
langinfo = nl_langinfo (_NL_TIME_FIRST_WEEKDAY);
first_weekday = langinfo[0];
langinfo = nl_langinfo (_NL_TIME_WEEK_1STDAY);
week_origin = GPOINTER_TO_INT (langinfo);
if (week_origin == 19971130) /* Sunday */
week_1stday = 0;
else if (week_origin == 19971201) /* Monday */
week_1stday = 1;
else
g_warning ("Unknown value of _NL_TIME_WEEK_1STDAY.\n");
priv->week_start = (week_1stday + first_weekday - 1) % 7;
#else
/* Translate to calendar:week_start:0 if you want Sunday to be the
* first day of the week to calendar:week_start:1 if you want Monday
* to be the first day of the week, and so on.
*/
week_start = _("calendar:week_start:0");
if (strncmp (week_start, "calendar:week_start:", 20) == 0)
priv->week_start = *(week_start + 20) - '0';
else
priv->week_start = -1;
if (priv->week_start < 0 || priv->week_start > 6)
{
g_warning ("Whoever translated calendar:week_start:0 did so wrongly.\n");
priv->week_start = 0;
}
#endif
}
/****************************************
* Utility Functions *
****************************************/
static void
calendar_set_month_next (GtkCalendar *calendar)
{
gint month_len;
g_return_if_fail (GTK_IS_WIDGET (calendar));
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
return;
if (calendar->month == 11)
{
calendar->month = 0;
calendar->year++;
}
else
calendar->month++;
calendar_compute_days (calendar);
g_signal_emit (calendar,
gtk_calendar_signals[NEXT_MONTH_SIGNAL],
0);
g_signal_emit (calendar,
gtk_calendar_signals[MONTH_CHANGED_SIGNAL],
0);
month_len = month_length[leap (calendar->year)][calendar->month + 1];
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, calendar->selected_day);
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
static void
calendar_set_year_prev (GtkCalendar *calendar)
{
gint month_len;
g_return_if_fail (GTK_IS_WIDGET (calendar));
calendar->year--;
calendar_compute_days (calendar);
g_signal_emit (calendar,
gtk_calendar_signals[PREV_YEAR_SIGNAL],
0);
g_signal_emit (calendar,
gtk_calendar_signals[MONTH_CHANGED_SIGNAL],
0);
month_len = month_length[leap (calendar->year)][calendar->month + 1];
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, calendar->selected_day);
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
static void
calendar_set_year_next (GtkCalendar *calendar)
{
gint month_len;
g_return_if_fail (GTK_IS_WIDGET (calendar));
calendar->year++;
calendar_compute_days (calendar);
g_signal_emit (calendar,
gtk_calendar_signals[NEXT_YEAR_SIGNAL],
0);
g_signal_emit (calendar,
gtk_calendar_signals[MONTH_CHANGED_SIGNAL],
0);
month_len = month_length[leap (calendar->year)][calendar->month + 1];
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, calendar->selected_day);
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
static void
calendar_compute_days (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (GTK_WIDGET (calendar));
gint month;
gint year;
gint ndays_in_month;
gint ndays_in_prev_month;
gint first_day;
gint row;
gint col;
gint day;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
year = calendar->year;
month = calendar->month + 1;
ndays_in_month = month_length[leap (year)][month];
first_day = day_of_week (year, month, 1);
first_day = (first_day + 7 - priv->week_start) % 7;
/* Compute days of previous month */
if (month > 1)
ndays_in_prev_month = month_length[leap (year)][month-1];
else
ndays_in_prev_month = month_length[leap (year)][12];
day = ndays_in_prev_month - first_day + 1;
row = 0;
if (first_day > 0)
{
for (col = 0; col < first_day; col++)
{
calendar->day[row][col] = day;
calendar->day_month[row][col] = MONTH_PREV;
day++;
}
}
/* Compute days of current month */
col = first_day;
for (day = 1; day <= ndays_in_month; day++)
{
calendar->day[row][col] = day;
calendar->day_month[row][col] = MONTH_CURRENT;
col++;
if (col == 7)
{
row++;
col = 0;
}
}
/* Compute days of next month */
day = 1;
for (; row <= 5; row++)
{
for (; col <= 6; col++)
{
calendar->day[row][col] = day;
calendar->day_month[row][col] = MONTH_NEXT;
day++;
}
col = 0;
}
}
static void
calendar_select_and_focus_day (GtkCalendar *calendar,
guint day)
{
gint old_focus_row = calendar->focus_row;
gint old_focus_col = calendar->focus_col;
gint row;
gint col;
for (row = 0; row < 6; row ++)
for (col = 0; col < 7; col++)
{
if (calendar->day_month[row][col] == MONTH_CURRENT
&& calendar->day[row][col] == day)
{
calendar->focus_row = row;
calendar->focus_col = col;
}
}
if (old_focus_row != -1 && old_focus_col != -1)
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
gtk_calendar_select_day (calendar, day);
}
/****************************************
* Layout computation utilities *
****************************************/
static gint
calendar_row_height (GtkCalendar *calendar)
{
return (GTK_CALENDAR_GET_PRIVATE (calendar)->main_h - CALENDAR_MARGIN
- ((calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
? CALENDAR_YSEP : CALENDAR_MARGIN)) / 6;
}
/* calendar_left_x_for_column: returns the x coordinate
* for the left of the column */
static gint
calendar_left_x_for_column (GtkCalendar *calendar,
gint column)
{
gint width;
gint x_left;
if (gtk_widget_get_direction (GTK_WIDGET (calendar)) == GTK_TEXT_DIR_RTL)
column = 6 - column;
width = GTK_CALENDAR_GET_PRIVATE (calendar)->day_width;
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
x_left = CALENDAR_XSEP + (width + DAY_XSEP) * column;
else
x_left = CALENDAR_MARGIN + (width + DAY_XSEP) * column;
return x_left;
}
/* column_from_x: returns the column 0-6 that the
* x pixel of the xwindow is in */
static gint
calendar_column_from_x (GtkCalendar *calendar,
gint event_x)
{
gint c, column;
gint x_left, x_right;
column = -1;
for (c = 0; c < 7; c++)
{
x_left = calendar_left_x_for_column (calendar, c);
x_right = x_left + GTK_CALENDAR_GET_PRIVATE (calendar)->day_width;
if (event_x >= x_left && event_x < x_right)
{
column = c;
break;
}
}
return column;
}
/* calendar_top_y_for_row: returns the y coordinate
* for the top of the row */
static gint
calendar_top_y_for_row (GtkCalendar *calendar,
gint row)
{
return (GTK_CALENDAR_GET_PRIVATE (calendar)->main_h
- (CALENDAR_MARGIN + (6 - row)
* calendar_row_height (calendar)));
}
/* row_from_y: returns the row 0-5 that the
* y pixel of the xwindow is in */
static gint
calendar_row_from_y (GtkCalendar *calendar,
gint event_y)
{
gint r, row;
gint height;
gint y_top, y_bottom;
height = calendar_row_height (calendar);
row = -1;
for (r = 0; r < 6; r++)
{
y_top = calendar_top_y_for_row (calendar, r);
y_bottom = y_top + height;
if (event_y >= y_top && event_y < y_bottom)
{
row = r;
break;
}
}
return row;
}
static void
calendar_arrow_rectangle (GtkCalendar *calendar,
guint arrow,
GdkRectangle *rect)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
gboolean year_left;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
year_left = priv->year_before;
else
year_left = !priv->year_before;
rect->y = 3;
rect->width = priv->arrow_width;
rect->height = priv->header_h - 7;
switch (arrow)
{
case ARROW_MONTH_LEFT:
if (year_left)
rect->x = (widget->allocation.width - 2 * widget->style->xthickness
- (3 + 2*priv->arrow_width
+ priv->max_month_width));
else
rect->x = 3;
break;
case ARROW_MONTH_RIGHT:
if (year_left)
rect->x = (widget->allocation.width - 2 * widget->style->xthickness
- 3 - priv->arrow_width);
else
rect->x = (priv->arrow_width
+ priv->max_month_width);
break;
case ARROW_YEAR_LEFT:
if (year_left)
rect->x = 3;
else
rect->x = (widget->allocation.width - 2 * widget->style->xthickness
- (3 + 2*priv->arrow_width
+ priv->max_year_width));
break;
case ARROW_YEAR_RIGHT:
if (year_left)
rect->x = (priv->arrow_width
+ priv->max_year_width);
else
rect->x = (widget->allocation.width - 2 * widget->style->xthickness
- 3 - priv->arrow_width);
break;
}
}
static void
calendar_day_rectangle (GtkCalendar *calendar,
gint row,
gint col,
GdkRectangle *rect)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
rect->x = calendar_left_x_for_column (calendar, col);
rect->y = calendar_top_y_for_row (calendar, row);
rect->height = calendar_row_height (calendar);
rect->width = priv->day_width;
}
static void
calendar_set_month_prev (GtkCalendar *calendar)
{
gint month_len;
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
return;
if (calendar->month == 0)
{
calendar->month = 11;
calendar->year--;
}
else
calendar->month--;
month_len = month_length[leap (calendar->year)][calendar->month + 1];
calendar_compute_days (calendar);
g_signal_emit (calendar,
gtk_calendar_signals[PREV_MONTH_SIGNAL],
0);
g_signal_emit (calendar,
gtk_calendar_signals[MONTH_CHANGED_SIGNAL],
0);
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
{
if (calendar->selected_day < 0)
calendar->selected_day = calendar->selected_day + 1 + month_length[leap (calendar->year)][calendar->month + 1];
gtk_calendar_select_day (calendar, calendar->selected_day);
}
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
/****************************************
* Basic object methods *
****************************************/
static void
gtk_calendar_finalize (GObject *object)
{
(* G_OBJECT_CLASS (gtk_calendar_parent_class)->finalize) (object);
}
static void
gtk_calendar_destroy (GtkObject *object)
{
calendar_stop_spinning (GTK_CALENDAR (object));
GTK_OBJECT_CLASS (gtk_calendar_parent_class)->destroy (object);
}
static void
calendar_set_display_option (GtkCalendar *calendar,
GtkCalendarDisplayOptions flag,
gboolean setting)
{
GtkCalendarDisplayOptions flags;
if (setting)
flags = calendar->display_flags | flag;
else
flags = calendar->display_flags & ~flag;
gtk_calendar_display_options (calendar, flags);
}
static gboolean
calendar_get_display_option (GtkCalendar *calendar,
GtkCalendarDisplayOptions flag)
{
return (calendar->display_flags & flag) != 0;
}
static void
gtk_calendar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCalendar *calendar;
calendar = GTK_CALENDAR (object);
switch (prop_id)
{
case PROP_YEAR:
gtk_calendar_select_month (calendar,
calendar->month,
g_value_get_int (value));
break;
case PROP_MONTH:
gtk_calendar_select_month (calendar,
g_value_get_int (value),
calendar->year);
break;
case PROP_DAY:
gtk_calendar_select_day (calendar,
g_value_get_int (value));
break;
case PROP_SHOW_HEADING:
calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_HEADING,
g_value_get_boolean (value));
break;
case PROP_SHOW_DAY_NAMES:
calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_DAY_NAMES,
g_value_get_boolean (value));
break;
case PROP_NO_MONTH_CHANGE:
calendar_set_display_option (calendar,
GTK_CALENDAR_NO_MONTH_CHANGE,
g_value_get_boolean (value));
break;
case PROP_SHOW_WEEK_NUMBERS:
calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_WEEK_NUMBERS,
g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_calendar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkCalendar *calendar;
calendar = GTK_CALENDAR (object);
switch (prop_id)
{
case PROP_YEAR:
g_value_set_int (value, calendar->year);
break;
case PROP_MONTH:
g_value_set_int (value, calendar->month);
break;
case PROP_DAY:
g_value_set_int (value, calendar->selected_day);
break;
case PROP_SHOW_HEADING:
g_value_set_boolean (value, calendar_get_display_option (calendar,
GTK_CALENDAR_SHOW_HEADING));
break;
case PROP_SHOW_DAY_NAMES:
g_value_set_boolean (value, calendar_get_display_option (calendar,
GTK_CALENDAR_SHOW_DAY_NAMES));
break;
case PROP_NO_MONTH_CHANGE:
g_value_set_boolean (value, calendar_get_display_option (calendar,
GTK_CALENDAR_NO_MONTH_CHANGE));
break;
case PROP_SHOW_WEEK_NUMBERS:
g_value_set_boolean (value, calendar_get_display_option (calendar,
GTK_CALENDAR_SHOW_WEEK_NUMBERS));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/****************************************
* Realization *
****************************************/
static void
calendar_realize_arrows (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
GdkWindowAttr attributes;
gint attributes_mask;
gint i;
/* Arrow windows ------------------------------------- */
if (! (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING))
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = (gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
| GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
for (i = 0; i < 4; i++)
{
GdkRectangle rect;
calendar_arrow_rectangle (calendar, i, &rect);
attributes.x = rect.x;
attributes.y = rect.y;
attributes.width = rect.width;
attributes.height = rect.height;
priv->arrow_win[i] = gdk_window_new (priv->header_win,
&attributes,
attributes_mask);
if (GTK_WIDGET_IS_SENSITIVE (widget))
priv->arrow_state[i] = GTK_STATE_NORMAL;
else
priv->arrow_state[i] = GTK_STATE_INSENSITIVE;
gdk_window_set_background (priv->arrow_win[i],
HEADER_BG_COLOR (GTK_WIDGET (calendar)));
gdk_window_show (priv->arrow_win[i]);
gdk_window_set_user_data (priv->arrow_win[i], widget);
}
}
else
{
for (i = 0; i < 4; i++)
priv->arrow_win[i] = NULL;
}
}
static void
calendar_realize_header (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
GdkWindowAttr attributes;
gint attributes_mask;
/* Header window ------------------------------------- */
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = widget->style->xthickness;
attributes.y = widget->style->ythickness;
attributes.width = widget->allocation.width - 2 * attributes.x;
attributes.height = priv->header_h - 2 * attributes.y;
priv->header_win = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_background (priv->header_win,
HEADER_BG_COLOR (GTK_WIDGET (calendar)));
gdk_window_show (priv->header_win);
gdk_window_set_user_data (priv->header_win, widget);
}
else
{
priv->header_win = NULL;
}
calendar_realize_arrows (calendar);
}
static void
calendar_realize_day_names (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
GdkWindowAttr attributes;
gint attributes_mask;
/* Day names window --------------------------------- */
if ( calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = (widget->style->xthickness + INNER_BORDER);
attributes.y = priv->header_h + (widget->style->ythickness
+ INNER_BORDER);
attributes.width = (widget->allocation.width
- (widget->style->xthickness + INNER_BORDER)
* 2);
attributes.height = priv->day_name_h;
priv->day_name_win = gdk_window_new (widget->window,
&attributes,
attributes_mask);
gdk_window_set_background (priv->day_name_win,
BACKGROUND_COLOR ( GTK_WIDGET ( calendar)));
gdk_window_show (priv->day_name_win);
gdk_window_set_user_data (priv->day_name_win, widget);
}
else
{
priv->day_name_win = NULL;
}
}
static void
calendar_realize_week_numbers (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
GdkWindowAttr attributes;
gint attributes_mask;
/* Week number window -------------------------------- */
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = widget->style->xthickness + INNER_BORDER;
attributes.y = (priv->header_h + priv->day_name_h
+ (widget->style->ythickness + INNER_BORDER));
attributes.width = priv->week_width;
attributes.height = priv->main_h;
priv->week_win = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_background (priv->week_win,
BACKGROUND_COLOR (GTK_WIDGET (calendar)));
gdk_window_show (priv->week_win);
gdk_window_set_user_data (priv->week_win, widget);
}
else
{
priv->week_win = NULL;
}
}
static void
gtk_calendar_realize (GtkWidget *widget)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
GdkWindowAttr attributes;
gint attributes_mask;
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.event_mask = (gtk_widget_get_events (widget)
| GDK_EXPOSURE_MASK |GDK_KEY_PRESS_MASK | GDK_SCROLL_MASK);
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (widget->parent->window,
&attributes, attributes_mask);
widget->style = gtk_style_attach (widget->style, widget->window);
/* Header window ------------------------------------- */
calendar_realize_header (calendar);
/* Day names window --------------------------------- */
calendar_realize_day_names (calendar);
/* Week number window -------------------------------- */
calendar_realize_week_numbers (calendar);
/* Main Window -------------------------------------- */
attributes.event_mask = (gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
| GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK);
attributes.x = priv->week_width + (widget->style->ythickness + INNER_BORDER);
attributes.y = (priv->header_h + priv->day_name_h
+ (widget->style->ythickness + INNER_BORDER));
attributes.width = (widget->allocation.width - attributes.x
- (widget->style->xthickness + INNER_BORDER));
attributes.height = priv->main_h;
priv->main_win = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_background (priv->main_win,
BACKGROUND_COLOR ( GTK_WIDGET ( calendar)));
gdk_window_show (priv->main_win);
gdk_window_set_user_data (priv->main_win, widget);
gdk_window_set_background (widget->window, BACKGROUND_COLOR (widget));
gdk_window_show (widget->window);
gdk_window_set_user_data (widget->window, widget);
}
static void
gtk_calendar_unrealize (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
gint i;
if (priv->header_win)
{
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
{
gdk_window_set_user_data (priv->arrow_win[i], NULL);
gdk_window_destroy (priv->arrow_win[i]);
priv->arrow_win[i] = NULL;
}
}
gdk_window_set_user_data (priv->header_win, NULL);
gdk_window_destroy (priv->header_win);
priv->header_win = NULL;
}
if (priv->week_win)
{
gdk_window_set_user_data (priv->week_win, NULL);
gdk_window_destroy (priv->week_win);
priv->week_win = NULL;
}
if (priv->main_win)
{
gdk_window_set_user_data (priv->main_win, NULL);
gdk_window_destroy (priv->main_win);
priv->main_win = NULL;
}
if (priv->day_name_win)
{
gdk_window_set_user_data (priv->day_name_win, NULL);
gdk_window_destroy (priv->day_name_win);
priv->day_name_win = NULL;
}
if (GTK_WIDGET_CLASS (gtk_calendar_parent_class)->unrealize)
(* GTK_WIDGET_CLASS (gtk_calendar_parent_class)->unrealize) (widget);
}
/****************************************
* Size Request and Allocate *
****************************************/
static void
gtk_calendar_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
PangoLayout *layout;
PangoRectangle logical_rect;
gint height;
gint i;
gchar buffer[255];
gint calendar_margin = CALENDAR_MARGIN;
gint header_width, main_width;
gint max_header_height = 0;
gint focus_width;
gint focus_padding;
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_padding,
NULL);
layout = gtk_widget_create_pango_layout (widget, NULL);
/*
* Calculate the requisition width for the widget.
*/
/* Header width */
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
priv->max_month_width = 0;
for (i = 0; i < 12; i++)
{
pango_layout_set_text (layout, default_monthname[i], -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
priv->max_month_width = MAX (priv->max_month_width,
logical_rect.width + 8);
max_header_height = MAX (max_header_height, logical_rect.height);
}
priv->max_year_width = 0;
/* Translators: This is a text measurement template.
* Translate it to the widest year text.
*
* Don't include the prefix "year measurement template|"
* in the translation.
*
* If you don't understand this, leave it as "2000"
*/
pango_layout_set_text (layout, Q_("year measurement template|2000"), -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
priv->max_year_width = MAX (priv->max_year_width,
logical_rect.width + 8);
max_header_height = MAX (max_header_height, logical_rect.height);
}
else
{
priv->max_month_width = 0;
priv->max_year_width = 0;
}
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
header_width = (priv->max_month_width
+ priv->max_year_width
+ 3 * 3);
else
header_width = (priv->max_month_width
+ priv->max_year_width
+ 4 * priv->arrow_width + 3 * 3);
/* Mainwindow labels width */
priv->max_day_char_width = 0;
priv->min_day_width = 0;
priv->max_label_char_ascent = 0;
priv->max_label_char_descent = 0;
for (i = 0; i < 9; i++)
{
g_snprintf (buffer, sizeof (buffer), "%d%d", i, i);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
priv->min_day_width = MAX (priv->min_day_width,
logical_rect.width);
priv->max_day_char_ascent = MAX (priv->max_label_char_ascent,
PANGO_ASCENT (logical_rect));
priv->max_day_char_descent = MAX (priv->max_label_char_descent,
PANGO_DESCENT (logical_rect));
}
/* We add one to max_day_char_width to be able to make the marked day "bold" */
priv->max_day_char_width = priv->min_day_width / 2 + 1;
if (calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
for (i = 0; i < 7; i++)
{
pango_layout_set_text (layout, default_abbreviated_dayname[i], -1);
pango_layout_line_get_pixel_extents (pango_layout_get_lines (layout)->data, NULL, &logical_rect);
priv->min_day_width = MAX (priv->min_day_width, logical_rect.width);
priv->max_label_char_ascent = MAX (priv->max_label_char_ascent,
PANGO_ASCENT (logical_rect));
priv->max_label_char_descent = MAX (priv->max_label_char_descent,
PANGO_DESCENT (logical_rect));
}
priv->max_week_char_width = 0;
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
for (i = 0; i < 9; i++)
{
g_snprintf (buffer, sizeof (buffer), "%d%d", i, i);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
priv->max_week_char_width = MAX (priv->max_week_char_width,
logical_rect.width / 2);
}
main_width = (7 * (priv->min_day_width + (focus_padding + focus_width) * 2) + (DAY_XSEP * 6) + CALENDAR_MARGIN * 2
+ (priv->max_week_char_width
? priv->max_week_char_width * 2 + (focus_padding + focus_width) * 2 + CALENDAR_XSEP * 2
: 0));
requisition->width = MAX (header_width, main_width + INNER_BORDER * 2) + widget->style->xthickness * 2;
/*
* Calculate the requisition height for the widget.
*/
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
priv->header_h = (max_header_height + CALENDAR_YSEP * 2);
}
else
{
priv->header_h = 0;
}
if (calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
priv->day_name_h = (priv->max_label_char_ascent
+ priv->max_label_char_descent
+ 2 * (focus_padding + focus_width) + calendar_margin);
calendar_margin = CALENDAR_YSEP;
}
else
{
priv->day_name_h = 0;
}
priv->main_h = (CALENDAR_MARGIN + calendar_margin
+ 6 * (priv->max_day_char_ascent
+ priv->max_day_char_descent
+ 2 * (focus_padding + focus_width))
+ DAY_YSEP * 5);
height = (priv->header_h + priv->day_name_h
+ priv->main_h);
requisition->height = height + (widget->style->ythickness + INNER_BORDER) * 2;
g_object_unref (layout);
}
static void
gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
gint xthickness = widget->style->xthickness;
gint ythickness = widget->style->xthickness;
guint i;
widget->allocation = *allocation;
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
priv->day_width = (priv->min_day_width
* ((allocation->width - (xthickness + INNER_BORDER) * 2
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 6) - CALENDAR_XSEP * 2))
/ (7 * priv->min_day_width + priv->max_week_char_width * 2));
priv->week_width = ((allocation->width - (xthickness + INNER_BORDER) * 2
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 6) - CALENDAR_XSEP * 2 )
- priv->day_width * 7 + CALENDAR_MARGIN + CALENDAR_XSEP);
}
else
{
priv->day_width = (allocation->width
- (xthickness + INNER_BORDER) * 2
- (CALENDAR_MARGIN * 2)
- (DAY_XSEP * 6))/7;
priv->week_width = 0;
}
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
if (priv->header_win)
gdk_window_move_resize (priv->header_win,
xthickness, ythickness,
allocation->width - 2 * xthickness, priv->header_h);
for (i = 0 ; i < 4 ; i++)
{
if (priv->arrow_win[i])
{
GdkRectangle rect;
calendar_arrow_rectangle (calendar, i, &rect);
gdk_window_move_resize (priv->arrow_win[i],
rect.x, rect.y, rect.width, rect.height);
}
}
if (priv->day_name_win)
gdk_window_move_resize (priv->day_name_win,
xthickness + INNER_BORDER,
priv->header_h + (widget->style->ythickness + INNER_BORDER),
allocation->width - (xthickness + INNER_BORDER) * 2,
priv->day_name_h);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
{
if (priv->week_win)
gdk_window_move_resize (priv->week_win,
(xthickness + INNER_BORDER),
priv->header_h + priv->day_name_h
+ (widget->style->ythickness + INNER_BORDER),
priv->week_width,
priv->main_h);
gdk_window_move_resize (priv->main_win,
priv->week_width + (xthickness + INNER_BORDER),
priv->header_h + priv->day_name_h
+ (widget->style->ythickness + INNER_BORDER),
allocation->width
- priv->week_width
- (xthickness + INNER_BORDER) * 2,
priv->main_h);
}
else
{
gdk_window_move_resize (priv->main_win,
(xthickness + INNER_BORDER),
priv->header_h + priv->day_name_h
+ (widget->style->ythickness + INNER_BORDER),
allocation->width
- priv->week_width
- (xthickness + INNER_BORDER) * 2,
priv->main_h);
if (priv->week_win)
gdk_window_move_resize (priv->week_win,
allocation->width
- priv->week_width
- (xthickness + INNER_BORDER),
priv->header_h + priv->day_name_h
+ (widget->style->ythickness + INNER_BORDER),
priv->week_width,
priv->main_h);
}
}
}
/****************************************
* Repainting *
****************************************/
static void
calendar_paint_header (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
cairo_t *cr;
char buffer[255];
int x, y;
gint header_width;
gint max_month_width;
gint max_year_width;
PangoLayout *layout;
PangoRectangle logical_rect;
gboolean year_left;
time_t tmp_time;
struct tm *tm;
gchar *str;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
year_left = priv->year_before;
else
year_left = !priv->year_before;
cr = gdk_cairo_create (priv->header_win);
header_width = widget->allocation.width - 2 * widget->style->xthickness;
max_month_width = priv->max_month_width;
max_year_width = priv->max_year_width;
gtk_paint_shadow (widget->style, priv->header_win,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
NULL, widget, "calendar",
0, 0, header_width, priv->header_h);
tmp_time = 1; /* Jan 1 1970, 00:00:01 UTC */
tm = gmtime (&tmp_time);
tm->tm_year = calendar->year - 1900;
/* Translators: This dictates how the year is displayed in
* gtkcalendar widget. See strftime() manual for the format.
* Use only ASCII in the translation.
*
* Also look for the msgid "year measurement template|2000".
* Translate that entry to a year with the widest output of this
* msgid.
*
* Don't include the prefix "calendar year format|" in the
* translation. "%Y" is appropriate for most locales.
*/
strftime (buffer, sizeof (buffer), Q_("calendar year format|%Y"), tm);
str = g_locale_to_utf8 (buffer, -1, NULL, NULL, NULL);
layout = gtk_widget_create_pango_layout (widget, str);
g_free (str);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
/* Draw title */
y = (priv->header_h - logical_rect.height) / 2;
/* Draw year and its arrows */
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
if (year_left)
x = 3 + (max_year_width - logical_rect.width)/2;
else
x = header_width - (3 + max_year_width
- (max_year_width - logical_rect.width)/2);
else
if (year_left)
x = 3 + priv->arrow_width + (max_year_width - logical_rect.width)/2;
else
x = header_width - (3 + priv->arrow_width + max_year_width
- (max_year_width - logical_rect.width)/2);
gdk_cairo_set_source_color (cr, HEADER_FG_COLOR (GTK_WIDGET (calendar)));
cairo_move_to (cr, x, y);
pango_cairo_show_layout (cr, layout);
/* Draw month */
g_snprintf (buffer, sizeof (buffer), "%s", default_monthname[calendar->month]);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
if (year_left)
x = header_width - (3 + max_month_width
- (max_month_width - logical_rect.width)/2);
else
x = 3 + (max_month_width - logical_rect.width) / 2;
else
if (year_left)
x = header_width - (3 + priv->arrow_width + max_month_width
- (max_month_width - logical_rect.width)/2);
else
x = 3 + priv->arrow_width + (max_month_width - logical_rect.width)/2;
cairo_move_to (cr, x, y);
pango_cairo_show_layout (cr, layout);
g_object_unref (layout);
cairo_destroy (cr);
}
static void
calendar_paint_day_names (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
cairo_t *cr;
char buffer[255];
int day,i;
int day_width, cal_width;
int day_wid_sep;
PangoLayout *layout;
PangoRectangle logical_rect;
gint focus_padding;
gint focus_width;
cr = gdk_cairo_create (priv->day_name_win);
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_padding,
NULL);
day_width = priv->day_width;
cal_width = widget->allocation.width;
day_wid_sep = day_width + DAY_XSEP;
/*
* Draw rectangles as inverted background for the labels.
*/
gdk_cairo_set_source_color (cr, SELECTED_BG_COLOR (widget));
cairo_rectangle (cr,
CALENDAR_MARGIN, CALENDAR_MARGIN,
cal_width-CALENDAR_MARGIN * 2,
priv->day_name_h - CALENDAR_MARGIN);
cairo_fill (cr);
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
cairo_rectangle (cr,
CALENDAR_MARGIN,
priv->day_name_h - CALENDAR_YSEP,
priv->week_width - CALENDAR_YSEP - CALENDAR_MARGIN,
CALENDAR_YSEP);
cairo_fill (cr);
}
/*
* Write the labels
*/
layout = gtk_widget_create_pango_layout (widget, NULL);
gdk_cairo_set_source_color (cr, SELECTED_FG_COLOR (widget));
for (i = 0; i < 7; i++)
{
if (gtk_widget_get_direction (GTK_WIDGET (calendar)) == GTK_TEXT_DIR_RTL)
day = 6 - i;
else
day = i;
day = (day + priv->week_start) % 7;
g_snprintf (buffer, sizeof (buffer), "%s", default_abbreviated_dayname[day]);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
cairo_move_to (cr,
(CALENDAR_MARGIN +
+ (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR ?
(priv->week_width + (priv->week_width ? CALENDAR_XSEP : 0))
: 0)
+ day_wid_sep * i
+ (day_width - logical_rect.width)/2),
CALENDAR_MARGIN + focus_width + focus_padding + logical_rect.y);
pango_cairo_show_layout (cr, layout);
}
g_object_unref (layout);
cairo_destroy (cr);
}
static void
calendar_paint_week_numbers (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
cairo_t *cr;
gint row, week = 0, year;
gint x_loc;
char buffer[3];
gint y_loc, day_height;
PangoLayout *layout;
PangoRectangle logical_rect;
gint focus_padding;
gint focus_width;
cr = gdk_cairo_create (priv->week_win);
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_padding,
NULL);
/*
* Draw a rectangle as inverted background for the labels.
*/
gdk_cairo_set_source_color (cr, SELECTED_BG_COLOR (widget));
if (priv->day_name_win)
cairo_rectangle (cr,
CALENDAR_MARGIN,
0,
priv->week_width - CALENDAR_MARGIN,
priv->main_h - CALENDAR_MARGIN);
else
cairo_rectangle (cr,
CALENDAR_MARGIN,
CALENDAR_MARGIN,
priv->week_width - CALENDAR_MARGIN,
priv->main_h - 2 * CALENDAR_MARGIN);
cairo_fill (cr);
/*
* Write the labels
*/
layout = gtk_widget_create_pango_layout (widget, NULL);
gdk_cairo_set_source_color (cr, SELECTED_FG_COLOR (widget));
day_height = calendar_row_height (calendar);
for (row = 0; row < 6; row++)
{
gboolean result;
year = calendar->year;
if (calendar->day[row][6] < 15 && row > 3 && calendar->month == 11)
year++;
result = week_of_year (&week, &year,
((calendar->day[row][6] < 15 && row > 3 ? 1 : 0)
+ calendar->month) % 12 + 1, calendar->day[row][6]);
g_return_if_fail (result);
g_snprintf (buffer, sizeof (buffer), "%d", week);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
y_loc = calendar_top_y_for_row (calendar, row) + (day_height - logical_rect.height) / 2;
x_loc = (priv->week_width
- logical_rect.width
- CALENDAR_XSEP - focus_padding - focus_width);
cairo_move_to (cr, x_loc, y_loc);
pango_cairo_show_layout (cr, layout);
}
g_object_unref (layout);
cairo_destroy (cr);
}
static void
calendar_invalidate_day_num (GtkCalendar *calendar,
gint day)
{
gint r, c, row, col;
row = -1;
col = -1;
for (r = 0; r < 6; r++)
for (c = 0; c < 7; c++)
if (calendar->day_month[r][c] == MONTH_CURRENT &&
calendar->day[r][c] == day)
{
row = r;
col = c;
}
g_return_if_fail (row != -1);
g_return_if_fail (col != -1);
calendar_invalidate_day (calendar, row, col);
}
static void
calendar_invalidate_day (GtkCalendar *calendar,
gint row,
gint col)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
if (priv->main_win)
{
GdkRectangle day_rect;
calendar_day_rectangle (calendar, row, col, &day_rect);
gdk_window_invalidate_rect (priv->main_win, &day_rect, FALSE);
}
}
static void
calendar_paint_day (GtkCalendar *calendar,
gint row,
gint col)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
cairo_t *cr;
GdkColor *text_color;
gchar buffer[255];
gint day;
gint x_loc, y_loc;
GdkRectangle day_rect;
PangoLayout *layout;
PangoRectangle logical_rect;
g_return_if_fail (row < 6);
g_return_if_fail (col < 7);
cr = gdk_cairo_create (priv->main_win);
day = calendar->day[row][col];
calendar_day_rectangle (calendar, row, col, &day_rect);
if (calendar->day_month[row][col] == MONTH_PREV)
{
text_color = PREV_MONTH_COLOR (widget);
}
else if (calendar->day_month[row][col] == MONTH_NEXT)
{
text_color = NEXT_MONTH_COLOR (widget);
}
else
{
#if 0
if (calendar->highlight_row == row && calendar->highlight_col == col)
{
cairo_set_source_color (cr, HIGHLIGHT_BG_COLOR (widget));
gdk_cairo_rectangle (cr, &day_rect);
cairo_fill (cr);
}
#endif
if (calendar->selected_day == day)
{
gdk_cairo_set_source_color (cr, SELECTED_BG_COLOR (widget));
gdk_cairo_rectangle (cr, &day_rect);
cairo_fill (cr);
}
if (calendar->selected_day == day)
text_color = SELECTED_FG_COLOR (widget);
else if (calendar->marked_date[day-1])
text_color = MARKED_COLOR (widget);
else
text_color = NORMAL_DAY_COLOR (widget);
}
g_snprintf (buffer, sizeof (buffer), "%d", day);
layout = gtk_widget_create_pango_layout (widget, buffer);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
x_loc = day_rect.x + day_rect.width / 2 + priv->max_day_char_width;
x_loc -= logical_rect.width;
y_loc = day_rect.y + (day_rect.height - logical_rect.height) / 2;
gdk_cairo_set_source_color (cr, text_color);
cairo_move_to (cr, x_loc, y_loc);
pango_cairo_show_layout (cr, layout);
if (calendar->marked_date[day-1]
&& calendar->day_month[row][col] == MONTH_CURRENT)
{
cairo_move_to (cr, x_loc - 1, y_loc);
pango_cairo_show_layout (cr, layout);
}
if (GTK_WIDGET_HAS_FOCUS (calendar)
&& calendar->focus_row == row && calendar->focus_col == col)
{
GtkStateType state;
if (calendar->selected_day == day)
state = GTK_WIDGET_HAS_FOCUS (widget) ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE;
else
state = GTK_STATE_NORMAL;
gtk_paint_focus (widget->style,
priv->main_win,
state,
#if 0
(calendar->selected_day == day)
? GTK_STATE_SELECTED : GTK_STATE_NORMAL,
#endif
NULL, widget, "calendar-day",
day_rect.x, day_rect.y,
day_rect.width, day_rect.height);
}
g_object_unref (layout);
cairo_destroy (cr);
}
static void
calendar_paint_main (GtkCalendar *calendar)
{
gint row, col;
for (col = 0; col < 7; col++)
for (row = 0; row < 6; row++)
calendar_paint_day (calendar, row, col);
}
static void
calendar_invalidate_arrow (GtkCalendar *calendar,
guint arrow)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
GdkWindow *window;
window = priv->arrow_win[arrow];
if (window)
gdk_window_invalidate_rect (window, NULL, FALSE);
}
static void
calendar_paint_arrow (GtkCalendar *calendar,
guint arrow)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
GdkWindow *window;
window = priv->arrow_win[arrow];
if (window)
{
cairo_t *cr = gdk_cairo_create (window);
gint width, height;
gint state;
state = priv->arrow_state[arrow];
gdk_cairo_set_source_color (cr, &widget->style->bg[state]);
cairo_paint (cr);
cairo_destroy (cr);
gdk_drawable_get_size (window, &width, &height);
if (arrow == ARROW_MONTH_LEFT || arrow == ARROW_YEAR_LEFT)
gtk_paint_arrow (widget->style, window, state,
GTK_SHADOW_OUT, NULL, widget, "calendar",
GTK_ARROW_LEFT, TRUE,
width/2 - 3, height/2 - 4, 8, 8);
else
gtk_paint_arrow (widget->style, window, state,
GTK_SHADOW_OUT, NULL, widget, "calendar",
GTK_ARROW_RIGHT, TRUE,
width/2 - 2, height/2 - 4, 8, 8);
}
}
static gboolean
gtk_calendar_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
int i;
if (GTK_WIDGET_DRAWABLE (widget))
{
if (event->window == priv->main_win)
calendar_paint_main (calendar);
if (event->window == priv->header_win)
calendar_paint_header (calendar);
for (i = 0; i < 4; i++)
if (event->window == priv->arrow_win[i])
calendar_paint_arrow (calendar, i);
if (event->window == priv->day_name_win)
calendar_paint_day_names (calendar);
if (event->window == priv->week_win)
calendar_paint_week_numbers (calendar);
if (event->window == widget->window)
{
gtk_paint_shadow (widget->style, widget->window, GTK_WIDGET_STATE (widget),
GTK_SHADOW_IN, NULL, widget, "calendar",
0, 0, widget->allocation.width, widget->allocation.height);
}
}
return FALSE;
}
/****************************************
* Mouse handling *
****************************************/
#define CALENDAR_INITIAL_TIMER_DELAY 200
#define CALENDAR_TIMER_DELAY 20
static void
calendar_arrow_action (GtkCalendar *calendar,
guint arrow)
{
switch (arrow)
{
case ARROW_YEAR_LEFT:
calendar_set_year_prev (calendar);
break;
case ARROW_YEAR_RIGHT:
calendar_set_year_next (calendar);
break;
case ARROW_MONTH_LEFT:
calendar_set_month_prev (calendar);
break;
case ARROW_MONTH_RIGHT:
calendar_set_month_next (calendar);
break;
default:;
/* do nothing */
}
}
static gboolean
calendar_timer (gpointer data)
{
GtkCalendar *calendar = data;
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
gboolean retval = FALSE;
GDK_THREADS_ENTER ();
if (priv->timer)
{
calendar_arrow_action (calendar, priv->click_child);
if (priv->need_timer)
{
priv->need_timer = FALSE;
priv->timer = g_timeout_add (CALENDAR_TIMER_DELAY,
(GSourceFunc) calendar_timer,
(gpointer) calendar);
}
else
retval = TRUE;
}
GDK_THREADS_LEAVE ();
return retval;
}
static void
calendar_start_spinning (GtkCalendar *calendar,
gint click_child)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
priv->click_child = click_child;
if (!priv->timer)
{
priv->need_timer = TRUE;
priv->timer = g_timeout_add (CALENDAR_INITIAL_TIMER_DELAY,
calendar_timer,
calendar);
}
}
static void
calendar_stop_spinning (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
if (priv->timer)
{
g_source_remove (priv->timer);
priv->timer = 0;
priv->need_timer = FALSE;
}
}
static void
calendar_main_button_press (GtkCalendar *calendar,
GdkEventButton *event)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
gint x, y;
gint row, col;
gint day_month;
gint day;
x = (gint) (event->x);
y = (gint) (event->y);
row = calendar_row_from_y (calendar, y);
col = calendar_column_from_x (calendar, x);
/* If row or column isn't found, just return. */
if (row == -1 || col == -1)
return;
day_month = calendar->day_month[row][col];
if (event->type == GDK_BUTTON_PRESS)
{
day = calendar->day[row][col];
if (day_month == MONTH_PREV)
calendar_set_month_prev (calendar);
else if (day_month == MONTH_NEXT)
calendar_set_month_next (calendar);
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
if (event->button == 1)
{
priv->in_drag = 1;
priv->drag_start_x = x;
priv->drag_start_y = y;
}
calendar_select_and_focus_day (calendar, day);
}
else if (event->type == GDK_2BUTTON_PRESS)
{
priv->in_drag = 0;
if (day_month == MONTH_CURRENT)
g_signal_emit (calendar,
gtk_calendar_signals[DAY_SELECTED_DOUBLE_CLICK_SIGNAL],
0);
}
}
static gboolean
gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
gint arrow = -1;
if (event->window == priv->main_win)
calendar_main_button_press (calendar, event);
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
for (arrow = ARROW_YEAR_LEFT; arrow <= ARROW_MONTH_RIGHT; arrow++)
{
if (event->window == priv->arrow_win[arrow])
{
/* only call the action on single click, not double */
if (event->type == GDK_BUTTON_PRESS)
{
if (event->button == 1)
calendar_start_spinning (calendar, arrow);
calendar_arrow_action (calendar, arrow);
}
return TRUE;
}
}
return FALSE;
}
static gboolean
gtk_calendar_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
if (event->button == 1)
{
calendar_stop_spinning (calendar);
if (priv->in_drag)
priv->in_drag = 0;
}
return TRUE;
}
static gboolean
gtk_calendar_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
gint event_x, event_y;
gint row, col;
gint old_row, old_col;
event_x = (gint) (event->x);
event_y = (gint) (event->y);
if (event->window == priv->main_win)
{
if (priv->in_drag)
{
if (gtk_drag_check_threshold (widget,
priv->drag_start_x, priv->drag_start_y,
event->x, event->y))
{
GdkDragContext *context;
GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
gtk_target_list_add_text_targets (target_list, 0);
context = gtk_drag_begin (widget, target_list, GDK_ACTION_COPY,
1, (GdkEvent *)event);
priv->in_drag = 0;
gtk_target_list_unref (target_list);
gtk_drag_set_icon_default (context);
}
}
else
{
row = calendar_row_from_y (calendar, event_y);
col = calendar_column_from_x (calendar, event_x);
if (row != calendar->highlight_row || calendar->highlight_col != col)
{
old_row = calendar->highlight_row;
old_col = calendar->highlight_col;
if (old_row > -1 && old_col > -1)
{
calendar->highlight_row = -1;
calendar->highlight_col = -1;
calendar_invalidate_day (calendar, old_row, old_col);
}
calendar->highlight_row = row;
calendar->highlight_col = col;
if (row > -1 && col > -1)
calendar_invalidate_day (calendar, row, col);
}
}
}
return TRUE;
}
static gboolean
gtk_calendar_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
if (event->window == priv->arrow_win[ARROW_MONTH_LEFT])
{
priv->arrow_state[ARROW_MONTH_LEFT] = GTK_STATE_PRELIGHT;
calendar_invalidate_arrow (calendar, ARROW_MONTH_LEFT);
}
if (event->window == priv->arrow_win[ARROW_MONTH_RIGHT])
{
priv->arrow_state[ARROW_MONTH_RIGHT] = GTK_STATE_PRELIGHT;
calendar_invalidate_arrow (calendar, ARROW_MONTH_RIGHT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_LEFT])
{
priv->arrow_state[ARROW_YEAR_LEFT] = GTK_STATE_PRELIGHT;
calendar_invalidate_arrow (calendar, ARROW_YEAR_LEFT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_RIGHT])
{
priv->arrow_state[ARROW_YEAR_RIGHT] = GTK_STATE_PRELIGHT;
calendar_invalidate_arrow (calendar, ARROW_YEAR_RIGHT);
}
return TRUE;
}
static gboolean
gtk_calendar_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
gint row;
gint col;
if (event->window == priv->main_win)
{
row = calendar->highlight_row;
col = calendar->highlight_col;
calendar->highlight_row = -1;
calendar->highlight_col = -1;
if (row > -1 && col > -1)
calendar_invalidate_day (calendar, row, col);
}
if (event->window == priv->arrow_win[ARROW_MONTH_LEFT])
{
priv->arrow_state[ARROW_MONTH_LEFT] = GTK_STATE_NORMAL;
calendar_invalidate_arrow (calendar, ARROW_MONTH_LEFT);
}
if (event->window == priv->arrow_win[ARROW_MONTH_RIGHT])
{
priv->arrow_state[ARROW_MONTH_RIGHT] = GTK_STATE_NORMAL;
calendar_invalidate_arrow (calendar, ARROW_MONTH_RIGHT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_LEFT])
{
priv->arrow_state[ARROW_YEAR_LEFT] = GTK_STATE_NORMAL;
calendar_invalidate_arrow (calendar, ARROW_YEAR_LEFT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_RIGHT])
{
priv->arrow_state[ARROW_YEAR_RIGHT] = GTK_STATE_NORMAL;
calendar_invalidate_arrow (calendar, ARROW_YEAR_RIGHT);
}
return TRUE;
}
static gboolean
gtk_calendar_scroll (GtkWidget *widget,
GdkEventScroll *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
if (event->direction == GDK_SCROLL_UP)
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
calendar_set_month_prev (calendar);
}
else if (event->direction == GDK_SCROLL_DOWN)
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
calendar_set_month_next (calendar);
}
else
return FALSE;
return TRUE;
}
/****************************************
* Key handling *
****************************************/
static void
move_focus (GtkCalendar *calendar,
gint direction)
{
GtkTextDirection text_dir = gtk_widget_get_direction (GTK_WIDGET (calendar));
if ((text_dir == GTK_TEXT_DIR_LTR && direction == -1) ||
(text_dir == GTK_TEXT_DIR_RTL && direction == 1))
{
if (calendar->focus_col > 0)
calendar->focus_col--;
else if (calendar->focus_row > 0)
{
calendar->focus_col = 6;
calendar->focus_row--;
}
}
else
{
if (calendar->focus_col < 6)
calendar->focus_col++;
else if (calendar->focus_row < 5)
{
calendar->focus_col = 0;
calendar->focus_row++;
}
}
}
static gboolean
gtk_calendar_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkCalendar *calendar;
gint return_val;
gint old_focus_row;
gint old_focus_col;
gint row, col, day;
calendar = GTK_CALENDAR (widget);
return_val = FALSE;
old_focus_row = calendar->focus_row;
old_focus_col = calendar->focus_col;
switch (event->keyval)
{
case GDK_KP_Left:
case GDK_Left:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
calendar_set_month_prev (calendar);
else
{
move_focus (calendar, -1);
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_KP_Right:
case GDK_Right:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
calendar_set_month_next (calendar);
else
{
move_focus (calendar, 1);
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_KP_Up:
case GDK_Up:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
calendar_set_year_prev (calendar);
else
{
if (calendar->focus_row > 0)
calendar->focus_row--;
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_KP_Down:
case GDK_Down:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
calendar_set_year_next (calendar);
else
{
if (calendar->focus_row < 5)
calendar->focus_row++;
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_KP_Space:
case GDK_space:
row = calendar->focus_row;
col = calendar->focus_col;
day = calendar->day[row][col];
if (row > -1 && col > -1)
{
return_val = TRUE;
if (calendar->day_month[row][col] == MONTH_PREV)
calendar_set_month_prev (calendar);
else if (calendar->day_month[row][col] == MONTH_NEXT)
calendar_set_month_next (calendar);
calendar_select_and_focus_day (calendar, day);
}
}
return return_val;
}
/****************************************
* Misc widget methods *
****************************************/
static void
calendar_set_background (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
gint i;
if (GTK_WIDGET_REALIZED (widget))
{
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
gdk_window_set_background (priv->arrow_win[i],
HEADER_BG_COLOR (widget));
}
if (priv->header_win)
gdk_window_set_background (priv->header_win,
HEADER_BG_COLOR (widget));
if (priv->day_name_win)
gdk_window_set_background (priv->day_name_win,
BACKGROUND_COLOR (widget));
if (priv->week_win)
gdk_window_set_background (priv->week_win,
BACKGROUND_COLOR (widget));
if (priv->main_win)
gdk_window_set_background (priv->main_win,
BACKGROUND_COLOR (widget));
if (widget->window)
gdk_window_set_background (widget->window,
BACKGROUND_COLOR (widget));
}
}
static void
gtk_calendar_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
if (previous_style && GTK_WIDGET_REALIZED (widget))
calendar_set_background (widget);
}
static void
gtk_calendar_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
int i;
if (!GTK_WIDGET_IS_SENSITIVE (widget))
{
priv->in_drag = 0;
calendar_stop_spinning (calendar);
}
for (i = 0; i < 4; i++)
if (GTK_WIDGET_IS_SENSITIVE (widget))
priv->arrow_state[i] = GTK_STATE_NORMAL;
else
priv->arrow_state[i] = GTK_STATE_INSENSITIVE;
calendar_set_background (widget);
}
static void
gtk_calendar_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
if (!was_grabbed)
calendar_stop_spinning (GTK_CALENDAR (widget));
}
static gboolean
gtk_calendar_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
calendar_stop_spinning (GTK_CALENDAR (widget));
priv->in_drag = 0;
return FALSE;
}
/****************************************
* Drag and Drop *
****************************************/
static void
gtk_calendar_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GDate *date;
gchar str[128];
gsize len;
date = g_date_new_dmy (calendar->selected_day, calendar->month + 1, calendar->year);
len = g_date_strftime (str, 127, "%x", date);
gtk_selection_data_set_text (selection_data, str, len);
g_free (date);
}
/* Get/set whether drag_motion requested the drag data and
* drag_data_received should thus not actually insert the data,
* since the data doesn't result from a drop.
*/
static void
set_status_pending (GdkDragContext *context,
GdkDragAction suggested_action)
{
g_object_set_data (G_OBJECT (context),
I_("gtk-calendar-status-pending"),
GINT_TO_POINTER (suggested_action));
}
static GdkDragAction
get_status_pending (GdkDragContext *context)
{
return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
"gtk-calendar-status-pending"));
}
static void
gtk_calendar_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
priv->drag_highlight = 0;
gtk_drag_unhighlight (widget);
}
static gboolean
gtk_calendar_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (widget);
GdkAtom target;
if (!priv->drag_highlight)
{
priv->drag_highlight = 1;
gtk_drag_highlight (widget);
}
target = gtk_drag_dest_find_target (widget, context, NULL);
if (target == GDK_NONE)
gdk_drag_status (context, 0, time);
else
{
set_status_pending (context, context->suggested_action);
gtk_drag_get_data (widget, context, target, time);
}
return TRUE;
}
static gboolean
gtk_calendar_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GdkAtom target;
target = gtk_drag_dest_find_target (widget, context, NULL);
if (target != GDK_NONE)
{
gtk_drag_get_data (widget, context,
target,
time);
return TRUE;
}
return FALSE;
}
static void
gtk_calendar_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
guint day, month, year;
gchar *str;
GDate *date;
GdkDragAction suggested_action;
suggested_action = get_status_pending (context);
if (suggested_action)
{
set_status_pending (context, 0);
/* We are getting this data due to a request in drag_motion,
* rather than due to a request in drag_drop, so we are just
* supposed to call drag_status, not actually paste in the
* data.
*/
str = gtk_selection_data_get_text (selection_data);
if (str)
{
date = g_date_new ();
g_date_set_parse (date, str);
if (!g_date_valid (date))
suggested_action = 0;
g_date_free (date);
g_free (str);
}
else
suggested_action = 0;
gdk_drag_status (context, suggested_action, time);
return;
}
date = g_date_new ();
str = gtk_selection_data_get_text (selection_data);
if (str)
{
g_date_set_parse (date, str);
g_free (str);
}
if (!g_date_valid (date))
{
g_warning ("Received invalid date data\n");
g_date_free (date);
gtk_drag_finish (context, FALSE, FALSE, time);
return;
}
day = g_date_get_day (date);
month = g_date_get_month (date);
year = g_date_get_year (date);
g_date_free (date);
gtk_drag_finish (context, TRUE, FALSE, time);
g_object_freeze_notify (G_OBJECT (calendar));
if (!(calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING))
gtk_calendar_select_month (calendar, month - 1, year);
gtk_calendar_select_day (calendar, day);
g_object_thaw_notify (G_OBJECT (calendar));
}
/****************************************
* Public API *
****************************************/
/**
* gtk_calendar_new:
*
* Creates a new calendar, with the current date being selected.
*
* Return value: a newly #GtkCalendar widget
**/
GtkWidget*
gtk_calendar_new (void)
{
return g_object_new (GTK_TYPE_CALENDAR, NULL);
}
/**
* gtk_calendar_display_options:
* @calendar: a #GtkCalendar.
* @flags: the display options to set.
*
* Sets display options (whether to display the heading and the month headings).
*
* Deprecated: Use gtk_calendar_set_display_options() instead
**/
void
gtk_calendar_display_options (GtkCalendar *calendar,
GtkCalendarDisplayOptions flags)
{
gtk_calendar_set_display_options (calendar, flags);
}
/**
* gtk_calendar_get_display_options:
* @calendar: a #GtkCalendar
*
* Returns the current display options of @calendar.
*
* Return value: the display options.
*
* Since: 2.4
**/
GtkCalendarDisplayOptions
gtk_calendar_get_display_options (GtkCalendar *calendar)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return calendar->display_flags;
}
/**
* gtk_calendar_set_display_options:
* @calendar: a #GtkCalendar
* @flags: the display options to set
*
* Sets display options (whether to display the heading and the month
* headings).
*
* Since: 2.4
**/
void
gtk_calendar_set_display_options (GtkCalendar *calendar,
GtkCalendarDisplayOptions flags)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = GTK_CALENDAR_GET_PRIVATE (calendar);
gint resize = 0;
gint i;
GtkCalendarDisplayOptions old_flags;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
old_flags = calendar->display_flags;
if (GTK_WIDGET_REALIZED (widget))
{
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_NO_MONTH_CHANGE)
{
resize ++;
if (! (flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (priv->header_win))
{
calendar->display_flags &= ~GTK_CALENDAR_NO_MONTH_CHANGE;
calendar_realize_arrows (calendar);
}
else
{
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
{
gdk_window_set_user_data (priv->arrow_win[i],
NULL);
gdk_window_destroy (priv->arrow_win[i]);
priv->arrow_win[i] = NULL;
}
}
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_HEADING)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_HEADING)
{
calendar->display_flags |= GTK_CALENDAR_SHOW_HEADING;
calendar_realize_header (calendar);
}
else
{
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
{
gdk_window_set_user_data (priv->arrow_win[i],
NULL);
gdk_window_destroy (priv->arrow_win[i]);
priv->arrow_win[i] = NULL;
}
}
gdk_window_set_user_data (priv->header_win, NULL);
gdk_window_destroy (priv->header_win);
priv->header_win = NULL;
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_DAY_NAMES)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
calendar->display_flags |= GTK_CALENDAR_SHOW_DAY_NAMES;
calendar_realize_day_names (calendar);
}
else
{
gdk_window_set_user_data (priv->day_name_win, NULL);
gdk_window_destroy (priv->day_name_win);
priv->day_name_win = NULL;
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
calendar->display_flags |= GTK_CALENDAR_SHOW_WEEK_NUMBERS;
calendar_realize_week_numbers (calendar);
}
else
{
gdk_window_set_user_data (priv->week_win, NULL);
gdk_window_destroy (priv->week_win);
priv->week_win = NULL;
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_WEEK_START_MONDAY)
g_warning ("GTK_CALENDAR_WEEK_START_MONDAY is ignored; the first day of the week is determined from the locale");
calendar->display_flags = flags;
if (resize)
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
else
calendar->display_flags = flags;
g_object_freeze_notify (G_OBJECT (calendar));
if ((old_flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_HEADING)
g_object_notify (G_OBJECT (calendar), "show-heading");
if ((old_flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_DAY_NAMES)
g_object_notify (G_OBJECT (calendar), "show-day-names");
if ((old_flags ^ calendar->display_flags) & GTK_CALENDAR_NO_MONTH_CHANGE)
g_object_notify (G_OBJECT (calendar), "no-month-change");
if ((old_flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
g_object_notify (G_OBJECT (calendar), "show-week-numbers");
g_object_thaw_notify (G_OBJECT (calendar));
}
/**
* gtk_calendar_select_month:
* @calendar: a #GtkCalendar
* @month: a month number between 0 and 11.
* @year: the year the month is in.
*
* Shifts the calendar to a different month.
*
* Return value: %TRUE, always
**/
gboolean
gtk_calendar_select_month (GtkCalendar *calendar,
guint month,
guint year)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
g_return_val_if_fail (month <= 11, FALSE);
calendar->month = month;
calendar->year = year;
calendar_compute_days (calendar);
gtk_widget_queue_draw (GTK_WIDGET (calendar));
g_object_freeze_notify (G_OBJECT (calendar));
g_object_notify (G_OBJECT (calendar), "month");
g_object_notify (G_OBJECT (calendar), "year");
g_object_thaw_notify (G_OBJECT (calendar));
g_signal_emit (calendar,
gtk_calendar_signals[MONTH_CHANGED_SIGNAL],
0);
return TRUE;
}
/**
* gtk_calendar_select_day:
* @calendar: a #GtkCalendar.
* @day: the day number between 1 and 31, or 0 to unselect
* the currently selected day.
*
* Selects a day from the current month.
**/
void
gtk_calendar_select_day (GtkCalendar *calendar,
guint day)
{
g_return_if_fail (GTK_IS_CALENDAR (calendar));
g_return_if_fail (day <= 31);
/* Deselect the old day */
if (calendar->selected_day > 0)
{
gint selected_day;
selected_day = calendar->selected_day;
calendar->selected_day = 0;
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
calendar_invalidate_day_num (calendar, selected_day);
}
calendar->selected_day = day;
/* Select the new day */
if (day != 0)
{
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
calendar_invalidate_day_num (calendar, day);
}
g_object_notify (G_OBJECT (calendar), "day");
g_signal_emit (calendar,
gtk_calendar_signals[DAY_SELECTED_SIGNAL],
0);
}
/**
* gtk_calendar_clear_marks:
* @calendar: a #GtkCalendar
*
* Remove all visual markers.
**/
void
gtk_calendar_clear_marks (GtkCalendar *calendar)
{
guint day;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
for (day = 0; day < 31; day++)
{
calendar->marked_date[day] = FALSE;
}
calendar->num_marked_dates = 0;
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
/**
* gtk_calendar_mark_day:
* @calendar: a #GtkCalendar
* @day: the day number to mark between 1 and 31.
*
* Places a visual marker on a particular day.
*
* Return value: %TRUE, always
**/
gboolean
gtk_calendar_mark_day (GtkCalendar *calendar,
guint day)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
if (day >= 1 && day <= 31 && calendar->marked_date[day-1] == FALSE)
{
calendar->marked_date[day - 1] = TRUE;
calendar->num_marked_dates++;
calendar_invalidate_day_num (calendar, day);
}
return TRUE;
}
/**
* gtk_calendar_unmark_day:
* @calendar: a #GtkCalendar.
* @day: the day number to unmark between 1 and 31.
*
* Removes the visual marker from a particular day.
*
* Return value: %TRUE, always
**/
gboolean
gtk_calendar_unmark_day (GtkCalendar *calendar,
guint day)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
if (day >= 1 && day <= 31 && calendar->marked_date[day-1] == TRUE)
{
calendar->marked_date[day - 1] = FALSE;
calendar->num_marked_dates--;
calendar_invalidate_day_num (calendar, day);
}
return TRUE;
}
/**
* gtk_calendar_get_date:
* @calendar: a #GtkCalendar
* @year: location to store the year number, or %NULL
* @month: location to store the month number (between 0 and 11), or %NULL
* @day: location to store the day number (between 1 and 31), or %NULL
*
* Obtains the selected date from a #GtkCalendar.
**/
void
gtk_calendar_get_date (GtkCalendar *calendar,
guint *year,
guint *month,
guint *day)
{
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (year)
*year = calendar->year;
if (month)
*month = calendar->month;
if (day)
*day = calendar->selected_day;
}
/**
* gtk_calendar_freeze:
* @calendar: a #GtkCalendar
*
* Does nothing. Previously locked the display of the calendar until
* it was thawed with gtk_calendar_thaw().
**/
void
gtk_calendar_freeze (GtkCalendar *calendar)
{
g_return_if_fail (GTK_IS_CALENDAR (calendar));
}
/**
* gtk_calendar_thaw:
* @calendar: a #GtkCalendar
*
* Does nothing. Previously defrosted a calendar; all the changes made
* since the last gtk_calendar_freeze() were displayed.
**/
void
gtk_calendar_thaw (GtkCalendar *calendar)
{
g_return_if_fail (GTK_IS_CALENDAR (calendar));
}
#define __GTK_CALENDAR_C__
#include "gtkaliasdef.c"
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