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GtkCalendar

GtkCalendar — Displays a calendar and allows the user to select a date

Synopsis


#include <gtk/gtk.h>

                    GtkCalendar;
gchar*              (*GtkCalendarDetailFunc)            (GtkCalendar *calendar,
                                                         guint year,
                                                         guint month,
                                                         guint day,
                                                         gpointer user_data);
enum                GtkCalendarDisplayOptions;

GtkWidget*          gtk_calendar_new                    (void);
gboolean            gtk_calendar_select_month           (GtkCalendar *calendar,
                                                         guint month,
                                                         guint year);
void                gtk_calendar_select_day             (GtkCalendar *calendar,
                                                         guint day);
gboolean            gtk_calendar_mark_day               (GtkCalendar *calendar,
                                                         guint day);
gboolean            gtk_calendar_unmark_day             (GtkCalendar *calendar,
                                                         guint day);
void                gtk_calendar_clear_marks            (GtkCalendar *calendar);

GtkCalendarDisplayOptions gtk_calendar_get_display_options
                                                        (GtkCalendar *calendar);
void                gtk_calendar_set_display_options    (GtkCalendar *calendar,
                                                         GtkCalendarDisplayOptions flags);
void                gtk_calendar_get_date               (GtkCalendar *calendar,
                                                         guint *year,
                                                         guint *month,
                                                         guint *day);

void                gtk_calendar_set_detail_func        (GtkCalendar *calendar,
                                                         GtkCalendarDetailFunc func,
                                                         gpointer data,
                                                         GDestroyNotify destroy);
gint                gtk_calendar_get_detail_width_chars (GtkCalendar *calendar);
void                gtk_calendar_set_detail_width_chars (GtkCalendar *calendar,
                                                         gint chars);
gint                gtk_calendar_get_detail_height_rows (GtkCalendar *calendar);
void                gtk_calendar_set_detail_height_rows (GtkCalendar *calendar,
                                                         gint rows);

void                gtk_calendar_display_options        (GtkCalendar *calendar,
                                                         GtkCalendarDisplayOptions flags);
void                gtk_calendar_freeze                 (GtkCalendar *calendar);
void                gtk_calendar_thaw                   (GtkCalendar *calendar);

Object Hierarchy

  GObject
   +----GInitiallyUnowned
         +----GtkObject
               +----GtkWidget
                     +----GtkCalendar

Implemented Interfaces

GtkCalendar implements AtkImplementorIface and GtkBuildable.

Properties

  "day"                      gint                  : Read / Write
  "detail-height-rows"       gint                  : Read / Write
  "detail-width-chars"       gint                  : Read / Write
  "month"                    gint                  : Read / Write
  "no-month-change"          gboolean              : Read / Write
  "show-day-names"           gboolean              : Read / Write
  "show-details"             gboolean              : Read / Write
  "show-heading"             gboolean              : Read / Write
  "show-week-numbers"        gboolean              : Read / Write
  "year"                     gint                  : Read / Write

Signals

  "day-selected"                                   : Run First
  "day-selected-double-click"                      : Run First
  "month-changed"                                  : Run First
  "next-month"                                     : Run First
  "next-year"                                      : Run First
  "prev-month"                                     : Run First
  "prev-year"                                      : Run First

Description

GtkCalendar is a widget that displays a calendar, one month at a time. It can be created with gtk_calendar_new().

The month and year currently displayed can be altered with gtk_calendar_select_month(). The exact day can be selected from the displayed month using gtk_calendar_select_day().

To place a visual marker on a particular day, use gtk_calendar_mark_day() and to remove the marker, gtk_calendar_unmark_day(). Alternative, all marks can be cleared with gtk_calendar_clear_marks().

The way in which the calendar itself is displayed can be altered using gtk_calendar_set_display_options().

The selected date can be retrieved from a GtkCalendar using gtk_calendar_get_date().

Details

GtkCalendar

typedef struct _GtkCalendar GtkCalendar;

num_marked_dates is an integer containing the number of days that have a mark over them.

marked_date is an array containing the day numbers that currently have a mark over them.

month, year, and selected_day contain the currently visible month, year, and selected day respectively.

All of these fields should be considered read only, and everything in this struct should only be modified using the functions provided below.

Note

Note that month is zero-based (i.e it allowed values are 0-11) while selected_day is one-based (i.e. allowed values are 1-31).

GtkCalendarDetailFunc ()

gchar*              (*GtkCalendarDetailFunc)            (GtkCalendar *calendar,
                                                         guint year,
                                                         guint month,
                                                         guint day,
                                                         gpointer user_data);

This kind of functions provide Pango markup with detail information for the specified day. Examples for such details are holidays or appointments. The function returns NULL when no information is available.

calendar :

 a GtkCalendar.

year :

 the year for which details are needed.

month :

 the month for which details are needed.

day :

 the day of month for which details are needed.

user_data :

 the data passed with gtk_calendar_set_detail_func().

Returns :

 Newly allocated string with Pango markup with details for the specified day, or NULL.

Since 2.14

enum GtkCalendarDisplayOptions

typedef enum
{
  GTK_CALENDAR_SHOW_HEADING		= 1 << 0,
  GTK_CALENDAR_SHOW_DAY_NAMES		= 1 << 1,
  GTK_CALENDAR_NO_MONTH_CHANGE		= 1 << 2,
  GTK_CALENDAR_SHOW_WEEK_NUMBERS	= 1 << 3,
  GTK_CALENDAR_WEEK_START_MONDAY	= 1 << 4,
  GTK_CALENDAR_SHOW_DETAILS		= 1 << 5
} GtkCalendarDisplayOptions;

These options can be used to influence the display and behaviour of a GtkCalendar.

GTK_CALENDAR_SHOW_HEADING

 Specifies that the month and year should be displayed.

GTK_CALENDAR_SHOW_DAY_NAMES

 Specifies that three letter day descriptions should be present.

GTK_CALENDAR_NO_MONTH_CHANGE

 Prevents the user from switching months with the calendar.

GTK_CALENDAR_SHOW_WEEK_NUMBERS

 Displays each week numbers of the current year, down the left side of the calendar.

GTK_CALENDAR_WEEK_START_MONDAY

 Since GTK+ 2.4, this option is deprecated and ignored by GTK+. The information on which day the calendar week starts is derived from the locale.

GTK_CALENDAR_SHOW_DETAILS

 Just show an indicator, not the full details text when details are provided. See gtk_calendar_set_detail_func().

gtk_calendar_new ()

GtkWidget*          gtk_calendar_new                    (void);

Creates a new calendar, with the current date being selected.

Returns :

 a newly GtkCalendar widget

gtk_calendar_select_month ()

gboolean            gtk_calendar_select_month           (GtkCalendar *calendar,
                                                         guint month,
                                                         guint year);

Shifts the calendar to a different month.

calendar :

 a GtkCalendar

month :

 a month number between 0 and 11.

year :

 the year the month is in.

Returns :

 TRUE, always

gtk_calendar_select_day ()

void                gtk_calendar_select_day             (GtkCalendar *calendar,
                                                         guint day);

Selects a day from the current month.

calendar :

 a GtkCalendar.

day :

 the day number between 1 and 31, or 0 to unselect the currently selected day.

gtk_calendar_mark_day ()

gboolean            gtk_calendar_mark_day               (GtkCalendar *calendar,
                                                         guint day);

Places a visual marker on a particular day.

calendar :

 a GtkCalendar

day :

 the day number to mark between 1 and 31.

Returns :

 TRUE, always

gtk_calendar_unmark_day ()

gboolean            gtk_calendar_unmark_day             (GtkCalendar *calendar,
                                                         guint day);

Removes the visual marker from a particular day.

calendar :

 a GtkCalendar.

day :

 the day number to unmark between 1 and 31.

Returns :

 TRUE, always

gtk_calendar_clear_marks ()

void                gtk_calendar_clear_marks            (GtkCalendar *calendar);

Remove all visual markers.

calendar :

 a GtkCalendar

gtk_calendar_get_display_options ()

GtkCalendarDisplayOptions gtk_calendar_get_display_options
                                                        (GtkCalendar *calendar);

Returns the current display options of calendar.

calendar :

 a GtkCalendar

Returns :

 the display options.

Since 2.4

gtk_calendar_set_display_options ()

void                gtk_calendar_set_display_options    (GtkCalendar *calendar,
                                                         GtkCalendarDisplayOptions flags);

Sets display options (whether to display the heading and the month headings).

calendar :

 a GtkCalendar

flags :

 the display options to set

Since 2.4

gtk_calendar_get_date ()

void                gtk_calendar_get_date               (GtkCalendar *calendar,
                                                         guint *year,
                                                         guint *month,
                                                         guint *day);

Obtains the selected date from a GtkCalendar.

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

gtk_calendar_set_detail_func ()

void                gtk_calendar_set_detail_func        (GtkCalendar *calendar,
                                                         GtkCalendarDetailFunc func,
                                                         gpointer data,
                                                         GDestroyNotify destroy);

Installs a function which provides Pango markup with detail information for each day. Examples for such details are holidays or appointments. That information is shown below each day when "show-details" is set. A tooltip containing with full detail information is provided, if the entire text should not fit into the details area, or if "show-details" is not set.

The size of the details area can be restricted by setting the "detail-width-chars" and "detail-height-rows" properties.

calendar :

 a GtkCalendar.

func :

 a function providing details for each day.

data :

 data to pass to func invokations.

destroy :

 a function for releasing data.

Since 2.14

gtk_calendar_get_detail_width_chars ()

gint                gtk_calendar_get_detail_width_chars (GtkCalendar *calendar);

Queries the width of detail cells, in characters. See "detail-width-chars".

calendar :

 a GtkCalendar.

Returns :

 The width of detail cells, in characters.

Since 2.14

gtk_calendar_set_detail_width_chars ()

void                gtk_calendar_set_detail_width_chars (GtkCalendar *calendar,
                                                         gint chars);

Updates the width of detail cells. See "detail-width-chars".

calendar :

 a GtkCalendar.

chars :

 detail width in characters.

Since 2.14

gtk_calendar_get_detail_height_rows ()

gint                gtk_calendar_get_detail_height_rows (GtkCalendar *calendar);

Queries the height of detail cells, in rows. See "detail-width-chars".

calendar :

 a GtkCalendar.

Returns :

 The height of detail cells, in rows.

Since 2.14

gtk_calendar_set_detail_height_rows ()

void                gtk_calendar_set_detail_height_rows (GtkCalendar *calendar,
                                                         gint rows);

Updates the height of detail cells. See "detail-height-rows".

calendar :

 a GtkCalendar.

rows :

 detail height in rows.

Since 2.14

gtk_calendar_display_options ()

void                gtk_calendar_display_options        (GtkCalendar *calendar,
                                                         GtkCalendarDisplayOptions flags);

Warning

gtk_calendar_display_options is deprecated and should not be used in newly-written code.

Sets display options (whether to display the heading and the month headings).

calendar :

 a GtkCalendar.

flags :

 the display options to set.

gtk_calendar_freeze ()

void                gtk_calendar_freeze                 (GtkCalendar *calendar);

Warning

gtk_calendar_freeze has been deprecated since version 2.8 and should not be used in newly-written code.

Does nothing. Previously locked the display of the calendar until it was thawed with gtk_calendar_thaw().

calendar :

 a GtkCalendar

gtk_calendar_thaw ()

void                gtk_calendar_thaw                   (GtkCalendar *calendar);

Warning

gtk_calendar_thaw has been deprecated since version 2.8 and should not be used in newly-written code.

Does nothing. Previously defrosted a calendar; all the changes made since the last gtk_calendar_freeze() were displayed.

calendar :

 a GtkCalendar

Property Details

The "day" property

  "day"                      gint                  : Read / Write

The selected day (as a number between 1 and 31, or 0 to unselect the currently selected day). This property gets initially set to the current day.

Allowed values: [0,31]

Default value: 0

The "detail-height-rows" property

  "detail-height-rows"       gint                  : Read / Write

Height of a detail cell, in rows. A value of 0 allows any width. See gtk_calendar_set_detail_func().

Allowed values: [0,127]

Default value: 0

Since 2.14

The "detail-width-chars" property

  "detail-width-chars"       gint                  : Read / Write

Width of a detail cell, in characters. A value of 0 allows any width. See gtk_calendar_set_detail_func().

Allowed values: [0,127]

Default value: 0

Since 2.14

The "month" property

  "month"                    gint                  : Read / Write

The selected month (as a number between 0 and 11). This property gets initially set to the current month.

Allowed values: [0,11]

Default value: 0

The "no-month-change" property

  "no-month-change"          gboolean              : Read / Write

Determines whether the selected month can be changed.

Default value: FALSE

Since 2.4

The "show-day-names" property

  "show-day-names"           gboolean              : Read / Write

Determines whether day names are displayed.

Default value: TRUE

Since 2.4

The "show-details" property

  "show-details"             gboolean              : Read / Write

Determines whether details are shown directly in the widget, or if they are available only as tooltip. When this property is set days with details are marked.

Default value: TRUE

Since 2.14

The "show-heading" property

  "show-heading"             gboolean              : Read / Write

Determines whether a heading is displayed.

Default value: TRUE

Since 2.4

The "show-week-numbers" property

  "show-week-numbers"        gboolean              : Read / Write

Determines whether week numbers are displayed.

Default value: FALSE

Since 2.4

The "year" property

  "year"                     gint                  : Read / Write

The selected year. This property gets initially set to the current year.

Allowed values: [0,4194303]

Default value: 0

Signal Details

The "day-selected" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

Emitted when the user selects a day.

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "day-selected-double-click" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "month-changed" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

Emitted when the user clicks a button to change the selected month on a calendar.

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "next-month" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "next-year" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "prev-month" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "prev-year" signal

void                user_function                      (GtkCalendar *calendar,
                                                        gpointer     user_data)      : Run First

calendar :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.
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