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gtk2/gtk/gtkcalendar.c
Matthias Clasen e8b830a3dd dragsource: Reshuffle api a bit 
Remove arguments from the constructor.

For actions, we now default to COPY, which is the most common one
that we should enable by default (MOVE requires handling deletion
on the the source side, and ASK only makes sense if we have
multiple actions).

For the content provider, we add a new ::prepare signal where
it should be provided just-in-time.
2020-01-08 18:48:21 -05:00

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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
*
* 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, see <http://www.gnu.org/licenses/>.
*/
/*
* 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/.
*/
/**
* SECTION:gtkcalendar
* @Short_description: Displays a calendar and allows the user to select a date
* @Title: GtkCalendar
*
* #GtkCalendar is a widget that displays a Gregorian 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().
*
* Users should be aware that, although the Gregorian calendar is the
* legal calendar in most countries, it was adopted progressively
* between 1582 and 1929. Display before these dates is likely to be
* historically incorrect.
*/
#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.h>
#ifdef G_OS_WIN32
#include <windows.h>
#endif
#include "gtkcalendar.h"
#include "gtkdragdest.h"
#include "gtkintl.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtktooltip.h"
#include "gtkprivate.h"
#include "gtkrendericonprivate.h"
#include "gtksnapshot.h"
#include "gtkstylecontextprivate.h"
#include "gtkwidgetprivate.h"
#include "gtkgestureclick.h"
#include "gtkgesturedrag.h"
#include "gtkeventcontrollerscroll.h"
#include "gtkeventcontrollerkey.h"
#include "gtkdragsource.h"
#define TIMEOUT_INITIAL 500
#define TIMEOUT_REPEAT 50
static const guint 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 gboolean
leap (guint year)
{
return ((((year % 4) == 0) && ((year % 100) != 0)) || ((year % 400) == 0));
}
static guint
day_of_week (guint year, guint mm, guint dd)
{
GDateTime *dt;
guint days;
dt = g_date_time_new_local (year, mm, dd, 1, 1, 1);
if (dt == NULL)
return 0;
days = g_date_time_get_day_of_week (dt);
g_date_time_unref (dt);
return days;
}
static guint
week_of_year (guint year, guint mm, guint dd)
{
GDateTime *dt;
guint week;
dt = g_date_time_new_local (year, mm, dd, 1, 1, 1);
if (dt == NULL)
return 1;
week = g_date_time_get_week_of_year (dt);
g_date_time_unref (dt);
return week;
}
/* Spacing around day/week headers and main area, inside those windows */
#define CALENDAR_MARGIN 0
#define DAY_XSEP 0 /* not really good for small calendar */
#define DAY_YSEP 0 /* not really good for small calendar */
#define SCROLL_DELAY_FACTOR 5
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_SHOW_DETAILS,
PROP_DETAIL_WIDTH_CHARS,
PROP_DETAIL_HEIGHT_ROWS
};
static guint gtk_calendar_signals[LAST_SIGNAL] = { 0 };
typedef struct _GtkCalendarClass GtkCalendarClass;
typedef struct _GtkCalendarPrivate GtkCalendarPrivate;
struct _GtkCalendar
{
GtkWidget widget;
};
struct _GtkCalendarClass
{
GtkWidgetClass parent_class;
void (* month_changed) (GtkCalendar *calendar);
void (* day_selected) (GtkCalendar *calendar);
void (* day_selected_double_click) (GtkCalendar *calendar);
void (* prev_month) (GtkCalendar *calendar);
void (* next_month) (GtkCalendar *calendar);
void (* prev_year) (GtkCalendar *calendar);
void (* next_year) (GtkCalendar *calendar);
};
struct _GtkCalendarPrivate
{
GtkCalendarDisplayOptions display_flags;
gint month;
gint year;
gint selected_day;
gint day_month[6][7];
gint day[6][7];
gint num_marked_dates;
gint marked_date[31];
gint focus_row;
gint focus_col;
guint header_h;
guint day_name_h;
guint main_h;
guint arrow_prelight : 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;
guint32 timer;
gint click_child;
gint week_start;
gint drag_start_x;
gint drag_start_y;
/* Optional callback, used to display extra information for each day. */
GtkCalendarDetailFunc detail_func;
gpointer detail_func_user_data;
GDestroyNotify detail_func_destroy;
/* Size requistion for details provided by the hook. */
gint detail_height_rows;
gint detail_width_chars;
gint detail_overflow[6];
};
static void gtk_calendar_destroy (GtkWidget *widget);
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_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline);
static void gtk_calendar_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline);
static void gtk_calendar_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot);
static void gtk_calendar_button_press (GtkGestureClick *gesture,
int n_press,
double x,
double y,
gpointer user_data);
static void gtk_calendar_button_release (GtkGestureClick *gesture,
int n_press,
double x,
double y,
gpointer user_data);
static void gtk_calendar_drag_begin (GtkGestureDrag *gesture,
double x,
double y,
gpointer data);
static void gtk_calendar_drag_update (GtkGestureDrag *gesture,
double x,
double y,
gpointer data);
static gboolean gtk_calendar_key_controller_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkWidget *widget);
static void gtk_calendar_key_controller_focus (GtkEventControllerKey *controller,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkWidget *widget);
static void gtk_calendar_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_calendar_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state);
static gboolean gtk_calendar_query_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_mode,
GtkTooltip *tooltip);
static gboolean gtk_calendar_drag_motion (GtkDropTarget *dest,
int x,
int y,
GtkCalendar *calendar);
static void gtk_calendar_drag_leave (GtkDropTarget *dest,
GtkCalendar *calendar);
static gboolean gtk_calendar_drag_drop (GtkDropTarget *dest,
int x,
int y,
GtkCalendar *calendar);
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_compute_days (GtkCalendar *calendar);
static gint calendar_get_xsep (GtkCalendar *calendar);
static gint calendar_get_ysep (GtkCalendar *calendar);
static gint calendar_get_inner_border (GtkCalendar *calendar);
static gboolean gtk_calendar_scroll_controller_scroll (GtkEventControllerScroll *scroll,
gdouble dx,
gdouble dy,
GtkWidget *widget);
static char *default_abbreviated_dayname[7];
static char *default_monthname[12];
G_DEFINE_TYPE_WITH_PRIVATE (GtkCalendar, gtk_calendar, GTK_TYPE_WIDGET)
static void
gtk_calendar_class_init (GtkCalendarClass *class)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
gobject_class = (GObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
gobject_class->set_property = gtk_calendar_set_property;
gobject_class->get_property = gtk_calendar_get_property;
widget_class->destroy = gtk_calendar_destroy;
widget_class->snapshot = gtk_calendar_snapshot;
widget_class->measure = gtk_calendar_measure;
widget_class->size_allocate = gtk_calendar_size_allocate;
widget_class->state_flags_changed = gtk_calendar_state_flags_changed;
widget_class->grab_notify = gtk_calendar_grab_notify;
widget_class->query_tooltip = gtk_calendar_query_tooltip;
/**
* GtkCalendar:year:
*
* The selected year.
* This property gets initially set to the current year.
*/
g_object_class_install_property (gobject_class,
PROP_YEAR,
g_param_spec_int ("year",
P_("Year"),
P_("The selected year"),
0, G_MAXINT >> 9, 0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:month:
*
* The selected month (as a number between 0 and 11).
* This property gets initially set to the current month.
*/
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_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:day:
*
* 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.
*/
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|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:show-heading:
*
* Determines whether a heading is displayed.
*/
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|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:show-day-names:
*
* Determines whether day names are displayed.
*/
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|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:no-month-change:
*
* Determines whether the selected month can be changed.
*/
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|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:show-week-numbers:
*
* Determines whether week numbers are displayed.
*/
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|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:detail-width-chars:
*
* Width of a detail cell, in characters.
* A value of 0 allows any width. See gtk_calendar_set_detail_func().
*/
g_object_class_install_property (gobject_class,
PROP_DETAIL_WIDTH_CHARS,
g_param_spec_int ("detail-width-chars",
P_("Details Width"),
P_("Details width in characters"),
0, 127, 0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:detail-height-rows:
*
* Height of a detail cell, in rows.
* A value of 0 allows any width. See gtk_calendar_set_detail_func().
*/
g_object_class_install_property (gobject_class,
PROP_DETAIL_HEIGHT_ROWS,
g_param_spec_int ("detail-height-rows",
P_("Details Height"),
P_("Details height in rows"),
0, 127, 0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:show-details:
*
* 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.
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_DETAILS,
g_param_spec_boolean ("show-details",
P_("Show Details"),
P_("If TRUE, details are shown"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar::month-changed:
* @calendar: the object which received the signal.
*
* Emitted when the user clicks a button to change the selected month on a
* calendar.
*/
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,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCalendar::day-selected:
* @calendar: the object which received the signal.
*
* Emitted when the user selects a day.
*/
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,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCalendar::day-selected-double-click:
* @calendar: the object which received the signal.
*
* Emitted when the user double-clicks a day.
*/
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,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCalendar::prev-month:
* @calendar: the object which received the signal.
*
* Emitted when the user switched to the previous month.
*/
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,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCalendar::next-month:
* @calendar: the object which received the signal.
*
* Emitted when the user switched to the next month.
*/
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,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCalendar::prev-year:
* @calendar: the object which received the signal.
*
* Emitted when user switched to the previous year.
*/
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,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCalendar::next-year:
* @calendar: the object which received the signal.
*
* Emitted when user switched to the next year.
*/
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,
NULL,
G_TYPE_NONE, 0);
gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_CALENDAR);
gtk_widget_class_set_css_name (widget_class, I_("calendar"));
}
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
static void
gtk_calendar_init (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkEventController *controller;
GtkGesture *gesture;
time_t secs;
struct tm *tm;
gint i;
#ifdef G_OS_WIN32
wchar_t wbuffer[100];
#else
static const char *month_format = NULL;
char buffer[255];
time_t tmp_time;
#endif
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gchar *year_before;
#ifdef HAVE__NL_TIME_FIRST_WEEKDAY
union { unsigned int word; char *string; } langinfo;
gint week_1stday = 0;
gint first_weekday = 1;
guint week_origin;
#else
gchar *week_start;
#endif
GdkContentFormats *formats;
GtkDropTarget *dest;
gtk_widget_set_can_focus (widget, TRUE);
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (calendar)),
GTK_STYLE_CLASS_VIEW);
gesture = gtk_gesture_click_new ();
g_signal_connect (gesture, "pressed", G_CALLBACK (gtk_calendar_button_press), calendar);
g_signal_connect (gesture, "released", G_CALLBACK (gtk_calendar_button_release), calendar);
gtk_widget_add_controller (GTK_WIDGET (calendar), GTK_EVENT_CONTROLLER (gesture));
gesture = gtk_gesture_drag_new ();
g_signal_connect (gesture, "drag-begin", G_CALLBACK (gtk_calendar_drag_begin), calendar);
g_signal_connect (gesture, "drag-update", G_CALLBACK (gtk_calendar_drag_update), calendar);
gtk_widget_add_controller (GTK_WIDGET (calendar), GTK_EVENT_CONTROLLER (gesture));
controller =
gtk_event_controller_scroll_new (GTK_EVENT_CONTROLLER_SCROLL_VERTICAL |
GTK_EVENT_CONTROLLER_SCROLL_DISCRETE);
g_signal_connect (controller, "scroll",
G_CALLBACK (gtk_calendar_scroll_controller_scroll),
calendar);
gtk_widget_add_controller (GTK_WIDGET (calendar), controller);
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed",
G_CALLBACK (gtk_calendar_key_controller_key_pressed),
calendar);
g_signal_connect (controller, "focus-in",
G_CALLBACK (gtk_calendar_key_controller_focus),
calendar);
g_signal_connect (controller, "focus-out",
G_CALLBACK (gtk_calendar_key_controller_focus),
calendar);
gtk_widget_add_controller (GTK_WIDGET (calendar), controller);
if (!default_abbreviated_dayname[0])
for (i=0; i<7; i++)
{
#ifndef G_OS_WIN32
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);
#else
if (!GetLocaleInfoW (GetThreadLocale (), LOCALE_SABBREVDAYNAME1 + (i+6)%7,
wbuffer, G_N_ELEMENTS (wbuffer)))
default_abbreviated_dayname[i] = g_strdup_printf ("(%d)", i);
else
default_abbreviated_dayname[i] = g_utf16_to_utf8 (wbuffer, -1, NULL, NULL, NULL);
#endif
}
if (!default_monthname[0])
for (i=0; i<12; i++)
{
#ifndef G_OS_WIN32
tmp_time=i*2764800;
if (G_UNLIKELY (month_format == NULL))
{
buffer[0] = '\0';
month_format = "%OB";
strftime (buffer, sizeof (buffer), month_format, gmtime (&tmp_time));
/* "%OB" is not supported in Linux with glibc < 2.27 */
if (!strcmp (buffer, "%OB") || !strcmp (buffer, "OB") || !strcmp (buffer, ""))
{
month_format = "%B";
strftime (buffer, sizeof (buffer), month_format, gmtime (&tmp_time));
}
}
else
strftime (buffer, sizeof (buffer), month_format, gmtime (&tmp_time));
default_monthname[i] = g_locale_to_utf8 (buffer, -1, NULL, NULL, NULL);
#else
if (!GetLocaleInfoW (GetThreadLocale (), LOCALE_SMONTHNAME1 + i,
wbuffer, G_N_ELEMENTS (wbuffer)))
default_monthname[i] = g_strdup_printf ("(%d)", i);
else
default_monthname[i] = g_utf16_to_utf8 (wbuffer, -1, NULL, NULL, NULL);
#endif
}
/* Set defaults */
secs = time (NULL);
tm = localtime (&secs);
priv->month = tm->tm_mon;
priv->year = 1900 + tm->tm_year;
for (i=0;i<31;i++)
priv->marked_date[i] = FALSE;
priv->num_marked_dates = 0;
priv->selected_day = tm->tm_mday;
priv->display_flags = (GTK_CALENDAR_SHOW_HEADING |
GTK_CALENDAR_SHOW_DAY_NAMES |
GTK_CALENDAR_SHOW_DETAILS);
priv->focus_row = -1;
priv->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;
formats = gdk_content_formats_new (NULL, 0);
formats = gtk_content_formats_add_text_targets (formats);
dest = gtk_drop_target_new (formats, GDK_ACTION_COPY);
gdk_content_formats_unref (formats);
g_signal_connect (dest, "drag-motion", G_CALLBACK (gtk_calendar_drag_motion), calendar);
g_signal_connect (dest, "drag-leave", G_CALLBACK (gtk_calendar_drag_leave), calendar);
g_signal_connect (dest, "drag-drop", G_CALLBACK (gtk_calendar_drag_drop), calendar);
gtk_widget_add_controller (widget, GTK_EVENT_CONTROLLER (dest));
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 the ordering described here is logical order, which is
* further influenced by BIDI ordering. Thus, if you have a default
* text direction of RTL and specify "calendar:YM", then the year
* will appear to the right of the month.
*/
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.");
#ifdef G_OS_WIN32
priv->week_start = 0;
week_start = NULL;
if (GetLocaleInfoW (GetThreadLocale (), LOCALE_IFIRSTDAYOFWEEK,
wbuffer, G_N_ELEMENTS (wbuffer)))
week_start = g_utf16_to_utf8 (wbuffer, -1, NULL, NULL, NULL);
if (week_start != NULL)
{
priv->week_start = (week_start[0] - '0' + 1) % 7;
g_free(week_start);
}
#else
#ifdef HAVE__NL_TIME_FIRST_WEEKDAY
langinfo.string = nl_langinfo (_NL_TIME_FIRST_WEEKDAY);
first_weekday = langinfo.string[0];
langinfo.string = nl_langinfo (_NL_TIME_WEEK_1STDAY);
week_origin = langinfo.word;
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.");
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.");
priv->week_start = 0;
}
#endif
#endif
calendar_compute_days (calendar);
}
#pragma GCC diagnostic pop
/****************************************
* Utility Functions *
****************************************/
static void
calendar_queue_refresh (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
if (!(priv->detail_func) ||
!(priv->display_flags & GTK_CALENDAR_SHOW_DETAILS) ||
(priv->detail_width_chars && priv->detail_height_rows))
gtk_widget_queue_draw (GTK_WIDGET (calendar));
else
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
static void
calendar_set_month_next (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint month_len;
if (priv->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
return;
if (priv->month == 11)
{
priv->month = 0;
priv->year++;
}
else
priv->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 (priv->year)][priv->month + 1];
if (month_len < priv->selected_day)
{
priv->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, priv->selected_day);
calendar_queue_refresh (calendar);
}
static void
calendar_set_year_prev (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint month_len;
priv->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 (priv->year)][priv->month + 1];
if (month_len < priv->selected_day)
{
priv->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, priv->selected_day);
calendar_queue_refresh (calendar);
}
static void
calendar_set_year_next (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint month_len;
priv->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 (priv->year)][priv->month + 1];
if (month_len < priv->selected_day)
{
priv->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, priv->selected_day);
calendar_queue_refresh (calendar);
}
static void
calendar_compute_days (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint month;
gint year;
gint ndays_in_month;
gint ndays_in_prev_month;
gint first_day;
gint row;
gint col;
gint day;
year = priv->year;
month = priv->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;
if (first_day == 0)
first_day = 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 - 1)][12];
day = ndays_in_prev_month - first_day+ 1;
for (col = 0; col < first_day; col++)
{
priv->day[0][col] = day;
priv->day_month[0][col] = MONTH_PREV;
day++;
}
/* Compute days of current month */
row = first_day / 7;
col = first_day % 7;
for (day = 1; day <= ndays_in_month; day++)
{
priv->day[row][col] = day;
priv->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++)
{
priv->day[row][col] = day;
priv->day_month[row][col] = MONTH_NEXT;
day++;
}
col = 0;
}
}
static void
calendar_select_and_focus_day (GtkCalendar *calendar,
guint day)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint old_focus_row = priv->focus_row;
gint old_focus_col = priv->focus_col;
gint row;
gint col;
for (row = 0; row < 6; row ++)
for (col = 0; col < 7; col++)
{
if (priv->day_month[row][col] == MONTH_CURRENT
&& priv->day[row][col] == day)
{
priv->focus_row = row;
priv->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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
return (priv->main_h - CALENDAR_MARGIN
- ((priv->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
? calendar_get_ysep (calendar) : CALENDAR_MARGIN)) / 6;
}
static void
get_component_paddings (GtkCalendar *calendar,
GtkBorder *day_padding,
GtkBorder *day_name_padding,
GtkBorder *week_padding)
{
GtkStyleContext * context;
GtkWidget *widget;
widget = GTK_WIDGET (calendar);
context = gtk_widget_get_style_context (widget);
if (day_padding)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, I_("day-number"));
gtk_style_context_get_padding (context, day_padding);
gtk_style_context_restore (context);
}
if (day_name_padding)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, I_("day-name"));
gtk_style_context_get_padding (context, day_name_padding);
gtk_style_context_restore (context);
}
if (week_padding)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, I_("week-number"));
gtk_style_context_get_padding (context, week_padding);
gtk_style_context_restore (context);
}
}
/* 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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint width;
gint x_left;
gint week_width;
gint calendar_xsep = calendar_get_xsep (calendar);
gint inner_border = calendar_get_inner_border (calendar);
get_component_paddings (calendar, NULL, NULL, NULL);
week_width = priv->week_width + inner_border;
if (gtk_widget_get_direction (GTK_WIDGET (calendar)) == GTK_TEXT_DIR_RTL)
{
column = 6 - column;
week_width = 0;
}
width = priv->day_width;
if (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
x_left = week_width + calendar_xsep + (width + DAY_XSEP) * column;
else
x_left = week_width + 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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
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 + priv->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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint inner_border = calendar_get_inner_border (calendar);
return priv->header_h + priv->day_name_h + inner_border
+ 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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkWidget *widget = GTK_WIDGET (calendar);
int width;
gboolean year_left;
width = gtk_widget_get_width (widget);
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 = (width - (3 + 2 * priv->arrow_width + priv->max_month_width));
else
rect->x = 3;
break;
case ARROW_MONTH_RIGHT:
if (year_left)
rect->x = width - 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 = width - (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 = width - 3 - priv->arrow_width;
break;
default:
g_assert_not_reached();
}
}
static void
calendar_day_rectangle (GtkCalendar *calendar,
gint row,
gint col,
GdkRectangle *rect)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint month_len;
if (priv->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
return;
if (priv->month == 0)
{
priv->month = 11;
priv->year--;
}
else
priv->month--;
month_len = month_length[leap (priv->year)][priv->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 < priv->selected_day)
{
priv->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
{
if (priv->selected_day < 0)
priv->selected_day = priv->selected_day + 1 + month_length[leap (priv->year)][priv->month + 1];
gtk_calendar_select_day (calendar, priv->selected_day);
}
calendar_queue_refresh (calendar);
}
/****************************************
* Basic object methods *
****************************************/
static void
gtk_calendar_destroy (GtkWidget *widget)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
calendar_stop_spinning (calendar);
/* Call the destroy function for the extra display callback: */
if (priv->detail_func_destroy && priv->detail_func_user_data)
{
priv->detail_func_destroy (priv->detail_func_user_data);
priv->detail_func_user_data = NULL;
priv->detail_func_destroy = NULL;
}
GTK_WIDGET_CLASS (gtk_calendar_parent_class)->destroy (widget);
}
static gboolean
calendar_set_display_option (GtkCalendar *calendar,
GtkCalendarDisplayOptions flag,
gboolean setting)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkCalendarDisplayOptions flags;
gboolean old_setting;
old_setting = (priv->display_flags & flag) != 0;
if (old_setting == setting)
return FALSE;
if (setting)
flags = priv->display_flags | flag;
else
flags = priv->display_flags & ~flag;
gtk_calendar_set_display_options (calendar, flags);
return TRUE;
}
static gboolean
calendar_get_display_option (GtkCalendar *calendar,
GtkCalendarDisplayOptions flag)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
return (priv->display_flags & flag) != 0;
}
static void
gtk_calendar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCalendar *calendar = GTK_CALENDAR (object);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
switch (prop_id)
{
case PROP_YEAR:
gtk_calendar_select_month (calendar,
priv->month,
g_value_get_int (value));
break;
case PROP_MONTH:
gtk_calendar_select_month (calendar,
g_value_get_int (value),
priv->year);
break;
case PROP_DAY:
gtk_calendar_select_day (calendar,
g_value_get_int (value));
break;
case PROP_SHOW_HEADING:
if (calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_HEADING,
g_value_get_boolean (value)))
g_object_notify (object, "show-heading");
break;
case PROP_SHOW_DAY_NAMES:
if (calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_DAY_NAMES,
g_value_get_boolean (value)))
g_object_notify (object, "show-day-names");
break;
case PROP_NO_MONTH_CHANGE:
if (calendar_set_display_option (calendar,
GTK_CALENDAR_NO_MONTH_CHANGE,
g_value_get_boolean (value)))
g_object_notify (object, "no-month-change");
break;
case PROP_SHOW_WEEK_NUMBERS:
if (calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_WEEK_NUMBERS,
g_value_get_boolean (value)))
g_object_notify (object, "show-week-numbers");
break;
case PROP_SHOW_DETAILS:
if (calendar_set_display_option (calendar,
GTK_CALENDAR_SHOW_DETAILS,
g_value_get_boolean (value)))
g_object_notify (object, "show-details");
break;
case PROP_DETAIL_WIDTH_CHARS:
gtk_calendar_set_detail_width_chars (calendar,
g_value_get_int (value));
break;
case PROP_DETAIL_HEIGHT_ROWS:
gtk_calendar_set_detail_height_rows (calendar,
g_value_get_int (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 = GTK_CALENDAR (object);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
switch (prop_id)
{
case PROP_YEAR:
g_value_set_int (value, priv->year);
break;
case PROP_MONTH:
g_value_set_int (value, priv->month);
break;
case PROP_DAY:
g_value_set_int (value, priv->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;
case PROP_SHOW_DETAILS:
g_value_set_boolean (value, calendar_get_display_option (calendar,
GTK_CALENDAR_SHOW_DETAILS));
break;
case PROP_DETAIL_WIDTH_CHARS:
g_value_set_int (value, priv->detail_width_chars);
break;
case PROP_DETAIL_HEIGHT_ROWS:
g_value_set_int (value, priv->detail_height_rows);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gint
calendar_get_inner_border (GtkCalendar *calendar)
{
return 4;
}
static gint
calendar_get_xsep (GtkCalendar *calendar)
{
return 4;
}
static gint
calendar_get_ysep (GtkCalendar *calendar)
{
return 4;
}
static gchar*
gtk_calendar_get_detail (GtkCalendar *calendar,
gint row,
gint column)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint year, month;
if (priv->detail_func == NULL)
return NULL;
year = priv->year;
month = priv->month + priv->day_month[row][column] - MONTH_CURRENT;
if (month < 0)
{
month += 12;
year -= 1;
}
else if (month > 11)
{
month -= 12;
year += 1;
}
return priv->detail_func (calendar,
year, month,
priv->day[row][column],
priv->detail_func_user_data);
}
static gboolean
gtk_calendar_query_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_mode,
GtkTooltip *tooltip)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gchar *detail = NULL;
GdkRectangle day_rect;
gint row, col;
col = calendar_column_from_x (calendar, x);
row = calendar_row_from_y (calendar, y);
if (col != -1 && row != -1 &&
(0 != (priv->detail_overflow[row] & (1 << col)) ||
0 == (priv->display_flags & GTK_CALENDAR_SHOW_DETAILS)))
{
detail = gtk_calendar_get_detail (calendar, row, col);
calendar_day_rectangle (calendar, row, col, &day_rect);
}
if (detail)
{
gtk_tooltip_set_tip_area (tooltip, &day_rect);
gtk_tooltip_set_markup (tooltip, detail);
g_free (detail);
return TRUE;
}
if (GTK_WIDGET_CLASS (gtk_calendar_parent_class)->query_tooltip)
return GTK_WIDGET_CLASS (gtk_calendar_parent_class)->query_tooltip (widget, x, y, keyboard_mode, tooltip);
return FALSE;
}
/****************************************
* Size Request and Allocate *
****************************************/
static void
gtk_calendar_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkBorder day_padding, day_name_padding, week_padding;
PangoLayout *layout;
PangoRectangle logical_rect;
gint height;
gint i, r, c;
gint calendar_margin = CALENDAR_MARGIN;
gint header_width, main_width;
gint max_header_height = 0;
gint max_detail_height;
gint inner_border = calendar_get_inner_border (calendar);
gint calendar_ysep = calendar_get_ysep (calendar);
gint calendar_xsep = calendar_get_xsep (calendar);
gboolean show_week_numbers = (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS);
layout = gtk_widget_create_pango_layout (widget, NULL);
/*
* Calculate the requisition width for the widget.
*/
/* Header width */
if (priv->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
*
* If you don't understand this, leave it as "2000"
*/
pango_layout_set_text (layout, C_("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 (priv->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->max_day_char_ascent = 0;
priv->max_day_char_descent = 0;
priv->min_day_width = 0;
for (i = 0; i < 9; i++)
{
gchar buffer[32];
g_snprintf (buffer, sizeof (buffer), C_("calendar:day:digits", "%d"), i * 11);
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_day_char_ascent,
PANGO_ASCENT (logical_rect));
priv->max_day_char_descent = MAX (priv->max_day_char_descent,
PANGO_DESCENT (logical_rect));
}
priv->max_label_char_ascent = 0;
priv->max_label_char_descent = 0;
if (priv->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_readonly (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 (show_week_numbers)
for (i = 0; i < 9; i++)
{
gchar buffer[32];
g_snprintf (buffer, sizeof (buffer), C_("calendar:week:digits", "%d"), i * 11);
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);
}
/* Calculate detail extents. Do this as late as possible since
* pango_layout_set_markup is called which alters font settings. */
max_detail_height = 0;
if (priv->detail_func && (priv->display_flags & GTK_CALENDAR_SHOW_DETAILS))
{
gchar *markup, *tail;
if (priv->detail_width_chars || priv->detail_height_rows)
{
gint rows = MAX (1, priv->detail_height_rows) - 1;
gsize len = priv->detail_width_chars + rows + 16;
markup = tail = g_alloca (len);
memcpy (tail, "<small>", 7);
tail += 7;
memset (tail, 'm', priv->detail_width_chars);
tail += priv->detail_width_chars;
memset (tail, '\n', rows);
tail += rows;
memcpy (tail, "</small>", 9);
tail += 9;
g_assert (len == (tail - markup));
pango_layout_set_markup (layout, markup, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
if (priv->detail_width_chars)
priv->min_day_width = MAX (priv->min_day_width, logical_rect.width);
if (priv->detail_height_rows)
max_detail_height = MAX (max_detail_height, logical_rect.height);
}
if (!priv->detail_width_chars || !priv->detail_height_rows)
for (r = 0; r < 6; r++)
for (c = 0; c < 7; c++)
{
gchar *detail = gtk_calendar_get_detail (calendar, r, c);
if (detail)
{
markup = g_strconcat ("<small>", detail, "</small>", NULL);
pango_layout_set_markup (layout, markup, -1);
if (priv->detail_width_chars)
{
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_width (layout, PANGO_SCALE * priv->min_day_width);
}
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
if (!priv->detail_width_chars)
priv->min_day_width = MAX (priv->min_day_width, logical_rect.width);
if (!priv->detail_height_rows)
max_detail_height = MAX (max_detail_height, logical_rect.height);
g_free (markup);
g_free (detail);
}
}
}
get_component_paddings (calendar, &day_padding, &day_name_padding, &week_padding);
priv->min_day_width += day_padding.left + day_padding.right;
if (show_week_numbers)
priv->max_week_char_width += week_padding.left + week_padding.right;
/* 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;
main_width = (7 * (priv->min_day_width) + (DAY_XSEP * 6) + CALENDAR_MARGIN * 2
+ (show_week_numbers
? priv->max_week_char_width * 2 + calendar_xsep * 2
: 0));
requisition->width = MAX (header_width, main_width + inner_border * 2);
/*
* Calculate the requisition height for the widget.
*/
if (priv->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
priv->header_h = (max_header_height + calendar_ysep * 2);
}
else
{
priv->header_h = 0;
}
if (priv->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
priv->day_name_h = (priv->max_label_char_ascent
+ priv->max_label_char_descent
+ day_name_padding.top + day_name_padding.bottom
+ 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
+ max_detail_height
+ day_padding.top + day_padding.bottom)
+ DAY_YSEP * 5);
height = priv->header_h + priv->day_name_h + priv->main_h;
requisition->height = height + (inner_border * 2);
g_object_unref (layout);
}
static void
gtk_calendar_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkRequisition requisition;
gtk_calendar_size_request (widget, &requisition);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
*minimum = *natural = requisition.width;
else /* VERTICAL */
*minimum = *natural = requisition.height;
}
static void
gtk_calendar_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint inner_border = calendar_get_inner_border (calendar);
gint calendar_xsep = calendar_get_xsep (calendar);
if (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
priv->day_width = (priv->min_day_width
* ((width - (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 = ((width - (inner_border * 2)
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 6) - calendar_xsep * 2 )
- priv->day_width * 7 + CALENDAR_MARGIN + calendar_xsep);
}
else
{
priv->day_width = (width
- (inner_border * 2)
- (CALENDAR_MARGIN * 2)
- (DAY_XSEP * 6))/7;
priv->week_width = 0;
}
}
/****************************************
* Repainting *
****************************************/
static void
calendar_snapshot_header (GtkCalendar *calendar,
GtkSnapshot *snapshot)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkStyleContext *context;
GtkStateFlags state;
char buffer[255];
gint 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;
context = gtk_widget_get_style_context (widget);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
year_left = priv->year_before;
else
year_left = !priv->year_before;
header_width = gtk_widget_get_width (widget);
max_month_width = priv->max_month_width;
max_year_width = priv->max_year_width;
state = gtk_style_context_get_state (context);
state &= ~GTK_STATE_FLAG_DROP_ACTIVE;
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_HEADER);
gtk_snapshot_render_background (snapshot, context, 0, 0, header_width, priv->header_h);
gtk_snapshot_render_frame (snapshot, context, 0, 0, header_width, priv->header_h);
tmp_time = 1; /* Jan 1 1970, 00:00:01 UTC */
tm = gmtime (&tmp_time);
tm->tm_year = priv->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 "2000".
* Translate that entry to a year with the widest output of this
* msgid.
*
* "%Y" is appropriate for most locales.
*/
strftime (buffer, sizeof (buffer), C_("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 (priv->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);
gtk_snapshot_render_layout (snapshot, context, x, y, layout);
/* Draw month */
g_snprintf (buffer, sizeof (buffer), "%s", default_monthname[priv->month]);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
if (priv->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;
gtk_snapshot_render_layout (snapshot, context, x, y, layout);
g_object_unref (layout);
gtk_style_context_restore (context);
}
static void
calendar_snapshot_day_names (GtkCalendar *calendar,
GtkSnapshot *snapshot)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder day_name_padding;
char buffer[255];
int day,i;
int day_width, cal_width;
int day_wid_sep;
PangoLayout *layout;
PangoRectangle logical_rect;
gint calendar_ysep = calendar_get_ysep (calendar);
gint calendar_xsep = calendar_get_xsep (calendar);
gint inner_border = calendar_get_inner_border (calendar);
get_component_paddings (calendar, NULL, &day_name_padding, NULL);
context = gtk_widget_get_style_context (widget);
gtk_snapshot_save (snapshot);
gtk_snapshot_translate (snapshot,
&GRAPHENE_POINT_INIT (inner_border, priv->header_h + inner_border));
day_width = priv->day_width;
cal_width = gtk_widget_get_width (widget) - (inner_border * 2);
day_wid_sep = day_width + DAY_XSEP;
/*
* Draw rectangles as inverted background for the labels.
*/
state = gtk_style_context_get_state (context);
state &= ~GTK_STATE_FLAG_DROP_ACTIVE;
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
gtk_snapshot_render_background (snapshot, context,
CALENDAR_MARGIN, CALENDAR_MARGIN,
cal_width - CALENDAR_MARGIN * 2,
priv->day_name_h - CALENDAR_MARGIN);
if (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
gtk_snapshot_render_background (snapshot, context,
CALENDAR_MARGIN,
priv->day_name_h - calendar_ysep,
priv->week_width - calendar_ysep - CALENDAR_MARGIN,
calendar_ysep);
/*
* Write the labels
*/
layout = gtk_widget_create_pango_layout (widget, NULL);
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);
gtk_snapshot_render_layout (snapshot, context,
(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 + day_name_padding.top + logical_rect.y,
layout);
}
g_object_unref (layout);
gtk_style_context_restore (context);
gtk_snapshot_restore (snapshot);
}
static void
calendar_snapshot_week_numbers (GtkCalendar *calendar,
GtkSnapshot *snapshot)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder week_padding;
gint row, x_loc, y_loc;
gint day_height;
char buffer[32];
PangoLayout *layout;
PangoRectangle logical_rect;
gint calendar_xsep = calendar_get_xsep (calendar);
gint inner_border = calendar_get_inner_border (calendar);
gint x, y;
get_component_paddings (calendar, NULL, NULL, &week_padding);
context = gtk_widget_get_style_context (widget);
y = priv->header_h + priv->day_name_h + inner_border;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
x = inner_border;
else
x = gtk_widget_get_width (widget) - priv->week_width - inner_border;
state = gtk_style_context_get_state (context);
state &= ~GTK_STATE_FLAG_DROP_ACTIVE;
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
if (priv->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
gtk_snapshot_render_background (snapshot, context,
x + CALENDAR_MARGIN, y,
priv->week_width - CALENDAR_MARGIN,
priv->main_h - CALENDAR_MARGIN);
else
gtk_snapshot_render_background (snapshot, context,
x + CALENDAR_MARGIN,
y + CALENDAR_MARGIN,
priv->week_width - CALENDAR_MARGIN,
priv->main_h - 2 * CALENDAR_MARGIN);
/*
* Write the labels
*/
layout = gtk_widget_create_pango_layout (widget, NULL);
day_height = calendar_row_height (calendar);
for (row = 0; row < 6; row++)
{
gint year, month, week;
year = priv->year;
month = priv->month + priv->day_month[row][6] - MONTH_CURRENT;
if (month < 0)
{
month += 12;
year -= 1;
}
else if (month > 11)
{
month -= 12;
year += 1;
}
month += 1;
week = week_of_year (year, month, priv->day[row][6]);
/* Translators: this defines whether the week numbers should use
* localized digits or the ones used in English (0123...).
*
* Translate to "%Id" if you want to use localized digits, or
* translate to "%d" otherwise.
*
* Note that translating this doesn't guarantee that you get localized
* digits. That needs support from your system and locale definition
* too.
*/
g_snprintf (buffer, sizeof (buffer), C_("calendar:week:digits", "%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 = x + (priv->week_width
- logical_rect.width
- calendar_xsep - week_padding.right);
gtk_snapshot_render_layout (snapshot, context, x_loc, y_loc, layout);
}
g_object_unref (layout);
gtk_style_context_restore (context);
}
static void
calendar_invalidate_day_num (GtkCalendar *calendar,
gint day)
{
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
static void
calendar_invalidate_day (GtkCalendar *calendar,
gint row,
gint col)
{
gtk_widget_queue_draw (GTK_WIDGET (calendar));
}
static gboolean
is_color_attribute (PangoAttribute *attribute,
gpointer data)
{
return (attribute->klass->type == PANGO_ATTR_FOREGROUND ||
attribute->klass->type == PANGO_ATTR_BACKGROUND);
}
static void
calendar_snapshot_day (GtkCalendar *calendar,
GtkSnapshot *snapshot,
gint row,
gint col)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkStyleContext *context;
GtkStateFlags state = 0;
gchar *detail;
gchar buffer[32];
gint day;
gint x_loc, y_loc;
GdkRectangle day_rect;
PangoLayout *layout;
PangoRectangle logical_rect;
gboolean overflow = FALSE;
gboolean show_details;
g_return_if_fail (row < 6);
g_return_if_fail (col < 7);
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
day = priv->day[row][col];
show_details = (priv->display_flags & GTK_CALENDAR_SHOW_DETAILS);
calendar_day_rectangle (calendar, row, col, &day_rect);
gtk_style_context_save (context);
state &= ~(GTK_STATE_FLAG_INCONSISTENT | GTK_STATE_FLAG_ACTIVE | GTK_STATE_FLAG_SELECTED | GTK_STATE_FLAG_DROP_ACTIVE);
if (priv->day_month[row][col] == MONTH_PREV ||
priv->day_month[row][col] == MONTH_NEXT)
state |= GTK_STATE_FLAG_INCONSISTENT;
else
{
if (priv->marked_date[day-1])
state |= GTK_STATE_FLAG_ACTIVE;
if (priv->selected_day == day)
{
state |= GTK_STATE_FLAG_SELECTED;
gtk_style_context_set_state (context, state);
gtk_snapshot_render_background (snapshot, context,
day_rect.x, day_rect.y,
day_rect.width, day_rect.height);
}
}
gtk_style_context_set_state (context, state);
/* Translators: this defines whether the day numbers should use
* localized digits or the ones used in English (0123...).
*
* Translate to "%Id" if you want to use localized digits, or
* translate to "%d" otherwise.
*
* Note that translating this doesn't guarantee that you get localized
* digits. That needs support from your system and locale definition
* too.
*/
g_snprintf (buffer, sizeof (buffer), C_("calendar:day:digits", "%d"), day);
/* Get extra information to show, if any: */
detail = gtk_calendar_get_detail (calendar, row, col);
layout = gtk_widget_create_pango_layout (widget, buffer);
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
x_loc = day_rect.x + (day_rect.width - logical_rect.width) / 2;
y_loc = day_rect.y;
gtk_snapshot_render_layout (snapshot, context, x_loc, y_loc, layout);
if (priv->day_month[row][col] == MONTH_CURRENT &&
(priv->marked_date[day-1] || (detail && !show_details)))
gtk_snapshot_render_layout (snapshot, context, x_loc - 1, y_loc, layout);
y_loc += priv->max_day_char_descent;
if (priv->detail_func && show_details)
{
GdkRGBA color;
gtk_style_context_get_color (context, &color);
gtk_snapshot_append_color (snapshot,
&color,
&GRAPHENE_RECT_INIT (
day_rect.x + 2, y_loc,
day_rect.width - 2, 1
));
y_loc += 2;
}
if (detail && show_details)
{
gchar *markup = g_strconcat ("<small>", detail, "</small>", NULL);
pango_layout_set_markup (layout, markup, -1);
g_free (markup);
if (day == priv->selected_day)
{
/* Stripping colors as they conflict with selection marking. */
PangoAttrList *attrs = pango_layout_get_attributes (layout);
PangoAttrList *colors = NULL;
if (attrs)
colors = pango_attr_list_filter (attrs, is_color_attribute, NULL);
if (colors)
pango_attr_list_unref (colors);
}
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_width (layout, PANGO_SCALE * day_rect.width);
if (priv->detail_height_rows)
{
gint dy = day_rect.height - (y_loc - day_rect.y);
pango_layout_set_height (layout, PANGO_SCALE * dy);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
}
gtk_snapshot_render_layout (snapshot, context, day_rect.x, y_loc, layout);
}
if (gtk_widget_has_visible_focus (widget) &&
priv->focus_row == row && priv->focus_col == col)
gtk_snapshot_render_focus (snapshot, context,
day_rect.x, day_rect.y,
day_rect.width, day_rect.height);
if (overflow)
priv->detail_overflow[row] |= (1 << col);
else
priv->detail_overflow[row] &= ~(1 << col);
gtk_style_context_restore (context);
g_object_unref (layout);
g_free (detail);
}
static void
calendar_snapshot_main (GtkCalendar *calendar,
GtkSnapshot *snapshot)
{
gint row, col;
for (col = 0; col < 7; col++)
for (row = 0; row < 6; row++)
calendar_snapshot_day (calendar, snapshot, row, col);
}
static void
calendar_snapshot_arrow (GtkCalendar *calendar,
GtkSnapshot *snapshot,
guint arrow)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GtkCssImageBuiltinType image_type;
GtkStyleContext *context;
GtkStateFlags state;
GdkRectangle rect;
calendar_arrow_rectangle (calendar, arrow, &rect);
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
if (priv->arrow_prelight & (1 << arrow))
state |= GTK_STATE_FLAG_PRELIGHT;
else
state &= ~(GTK_STATE_FLAG_PRELIGHT);
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
gtk_snapshot_render_background (snapshot, context,
rect.x, rect.y,
rect.width, rect.height);
if (arrow == ARROW_MONTH_LEFT || arrow == ARROW_YEAR_LEFT)
image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_LEFT;
else
image_type = GTK_CSS_IMAGE_BUILTIN_ARROW_RIGHT;
gtk_snapshot_save (snapshot);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT(
rect.x + (rect.width - 8) / 2,
rect.y + (rect.height - 8) / 2));
gtk_css_style_snapshot_icon (gtk_style_context_lookup_style (context),
snapshot,
8, 8,
image_type);
gtk_snapshot_restore (snapshot);
gtk_style_context_restore (context);
}
static void
gtk_calendar_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
int i;
calendar_snapshot_main (calendar, snapshot);
if (priv->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
calendar_snapshot_header (calendar, snapshot);
for (i = 0; i < 4; i++)
calendar_snapshot_arrow (calendar, snapshot, i);
}
if (priv->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
calendar_snapshot_day_names (calendar, snapshot);
if (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
calendar_snapshot_week_numbers (calendar, snapshot);
}
/****************************************
* Mouse handling *
****************************************/
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_instance_private (calendar);
gboolean retval = FALSE;
if (priv->timer)
{
calendar_arrow_action (calendar, priv->click_child);
if (priv->need_timer)
{
priv->need_timer = FALSE;
priv->timer = g_timeout_add_full (G_PRIORITY_DEFAULT_IDLE,
TIMEOUT_REPEAT * SCROLL_DELAY_FACTOR,
(GSourceFunc) calendar_timer,
calendar, NULL);
g_source_set_name_by_id (priv->timer, "[gtk] calendar_timer");
}
else
retval = TRUE;
}
return retval;
}
static void
calendar_start_spinning (GtkCalendar *calendar,
gint click_child)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
priv->click_child = click_child;
if (!priv->timer)
{
priv->need_timer = TRUE;
priv->timer = g_timeout_add_full (G_PRIORITY_DEFAULT_IDLE,
TIMEOUT_INITIAL,
(GSourceFunc) calendar_timer,
calendar, NULL);
g_source_set_name_by_id (priv->timer, "[gtk] calendar_timer");
}
}
static void
calendar_stop_spinning (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_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,
double x,
double y,
int n_press,
int button)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint row, col;
gint day_month;
gint day;
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 = priv->day_month[row][col];
if (n_press == 1)
{
day = priv->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 (button == GDK_BUTTON_PRIMARY)
{
priv->in_drag = 1;
priv->drag_start_x = x;
priv->drag_start_y = y;
}
calendar_select_and_focus_day (calendar, day);
}
else if (n_press == 2)
{
priv->in_drag = 0;
if (day_month == MONTH_CURRENT)
g_signal_emit (calendar,
gtk_calendar_signals[DAY_SELECTED_DOUBLE_CLICK_SIGNAL],
0);
}
}
static void
gtk_calendar_button_press (GtkGestureClick *gesture,
int n_press,
double x,
double y,
gpointer user_data)
{
GtkCalendar *calendar = user_data;
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
int button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
gint arrow = -1;
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
if (y > priv->header_h)
calendar_main_button_press (calendar, x, y, n_press, button);
for (arrow = ARROW_YEAR_LEFT; arrow <= ARROW_MONTH_RIGHT; arrow++)
{
GdkRectangle arrow_rect;
calendar_arrow_rectangle (calendar, arrow, &arrow_rect);
if (gdk_rectangle_contains_point (&arrow_rect, (int)x, (int)y))
{
if (button == GDK_BUTTON_PRIMARY)
calendar_start_spinning (calendar, arrow);
calendar_arrow_action (calendar, arrow);
return;
}
}
}
static void
gtk_calendar_button_release (GtkGestureClick *gesture,
int n_press,
double x,
double y,
gpointer user_data)
{
GtkCalendar *calendar = user_data;
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
int button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
if (button == GDK_BUTTON_PRIMARY)
{
calendar_stop_spinning (calendar);
if (priv->in_drag)
priv->in_drag = 0;
}
}
static void
gtk_calendar_drag_begin (GtkGestureDrag *gesture,
double x,
double y,
gpointer data)
{
GtkCalendar *calendar = data;
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
priv->in_drag = TRUE;
}
static GdkContentProvider *
get_calendar_content (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GDate *date;
gchar str[128];
GValue value = G_VALUE_INIT;
GdkContentProvider *content;
date = g_date_new_dmy (priv->selected_day, priv->month + 1, priv->year);
g_date_strftime (str, 127, "%x", date);
g_free (date);
g_value_init (&value, G_TYPE_STRING);
g_value_set_string (&value, str);
content = gdk_content_provider_new_for_value (&value);
g_value_unset (&value);
return content;
}
static void
gtk_calendar_drag_update (GtkGestureDrag *gesture,
double x,
double y,
gpointer data)
{
GtkWidget *widget = data;
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gdouble start_x, start_y;
GtkDragSource *source;
GdkContentProvider *content;
GdkDevice *device;
if (!priv->in_drag)
return;
if (!gtk_drag_check_threshold (widget, 0, 0, x, y))
return;
gtk_gesture_drag_get_start_point (gesture, &start_x, &start_y);
source = gtk_drag_source_new ();
content = get_calendar_content (calendar);
gtk_drag_source_set_content (source, content);
g_object_unref (content);
device = gtk_gesture_get_device (GTK_GESTURE (gesture));
gtk_drag_source_drag_begin (source, widget, device, start_x, start_y);
g_object_unref (source);
priv->in_drag = 0;
}
static gboolean
gtk_calendar_scroll_controller_scroll (GtkEventControllerScroll *scroll,
gdouble dx,
gdouble dy,
GtkWidget *widget)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
if (dy < 0)
calendar_set_month_prev (calendar);
else if (dy > 0)
calendar_set_month_next (calendar);
return GDK_EVENT_STOP;
}
/****************************************
* Key handling *
****************************************/
static void
move_focus (GtkCalendar *calendar,
gint direction)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
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 (priv->focus_col > 0)
priv->focus_col--;
else if (priv->focus_row > 0)
{
priv->focus_col = 6;
priv->focus_row--;
}
if (priv->focus_col < 0)
priv->focus_col = 6;
if (priv->focus_row < 0)
priv->focus_row = 5;
}
else
{
if (priv->focus_col < 6)
priv->focus_col++;
else if (priv->focus_row < 5)
{
priv->focus_col = 0;
priv->focus_row++;
}
if (priv->focus_col < 0)
priv->focus_col = 0;
if (priv->focus_row < 0)
priv->focus_row = 0;
}
}
static gboolean
gtk_calendar_key_controller_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkWidget *widget)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint return_val;
gint old_focus_row;
gint old_focus_col;
gint row, col, day;
return_val = FALSE;
old_focus_row = priv->focus_row;
old_focus_col = priv->focus_col;
switch (keyval)
{
case GDK_KEY_KP_Left:
case GDK_KEY_Left:
return_val = TRUE;
if (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, priv->focus_row,
priv->focus_col);
}
break;
case GDK_KEY_KP_Right:
case GDK_KEY_Right:
return_val = TRUE;
if (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, priv->focus_row,
priv->focus_col);
}
break;
case GDK_KEY_KP_Up:
case GDK_KEY_Up:
return_val = TRUE;
if (state & GDK_CONTROL_MASK)
calendar_set_year_prev (calendar);
else
{
if (priv->focus_row > 0)
priv->focus_row--;
if (priv->focus_row < 0)
priv->focus_row = 5;
if (priv->focus_col < 0)
priv->focus_col = 6;
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, priv->focus_row,
priv->focus_col);
}
break;
case GDK_KEY_KP_Down:
case GDK_KEY_Down:
return_val = TRUE;
if (state & GDK_CONTROL_MASK)
calendar_set_year_next (calendar);
else
{
if (priv->focus_row < 5)
priv->focus_row++;
if (priv->focus_col < 0)
priv->focus_col = 0;
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, priv->focus_row,
priv->focus_col);
}
break;
case GDK_KEY_KP_Space:
case GDK_KEY_space:
row = priv->focus_row;
col = priv->focus_col;
if (row > -1 && col > -1)
{
return_val = TRUE;
day = priv->day[row][col];
if (priv->day_month[row][col] == MONTH_PREV)
calendar_set_month_prev (calendar);
else if (priv->day_month[row][col] == MONTH_NEXT)
calendar_set_month_next (calendar);
calendar_select_and_focus_day (calendar, day);
}
default:
break;
}
return return_val;
}
static void
gtk_calendar_key_controller_focus (GtkEventControllerKey *key,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkWidget *widget)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
calendar_queue_refresh (calendar);
calendar_stop_spinning (calendar);
priv->in_drag = 0;
}
/****************************************
* Misc widget methods *
****************************************/
static void
gtk_calendar_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
if (!gtk_widget_is_sensitive (widget))
{
priv->in_drag = 0;
calendar_stop_spinning (calendar);
}
}
static void
gtk_calendar_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
GTK_WIDGET_CLASS (gtk_calendar_parent_class)->grab_notify (widget, was_grabbed);
if (!was_grabbed)
calendar_stop_spinning (GTK_CALENDAR (widget));
}
/****************************************
* Drag and Drop *
****************************************/
/* 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 (GdkDrop *drop,
GdkDragAction suggested_action)
{
g_object_set_data (G_OBJECT (drop),
I_("gtk-calendar-status-pending"),
GINT_TO_POINTER (suggested_action));
}
static GdkDragAction
get_status_pending (GdkDrop *drop)
{
return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (drop),
"gtk-calendar-status-pending"));
}
static void
gtk_calendar_drag_leave (GtkDropTarget *dest,
GtkCalendar *calendar)
{
gtk_drag_unhighlight (GTK_WIDGET (calendar));
}
static void
got_text (GObject *source,
GAsyncResult *result,
gpointer data)
{
GtkCalendar *calendar = GTK_CALENDAR (data);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
GdkDrop *drop = GDK_DROP (source);
guint day, month, year;
gchar *str;
GDate *date;
GdkDragAction suggested_action;
suggested_action = get_status_pending (drop);
set_status_pending (drop, 0);
str = gdk_drop_read_text_finish (drop, result, NULL);
if (suggested_action)
{
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_drop_status (drop, suggested_action);
return;
}
date = g_date_new ();
if (str)
{
g_date_set_parse (date, str);
g_free (str);
}
if (!g_date_valid (date))
{
g_warning ("Received invalid date data");
g_date_free (date);
gdk_drop_finish (drop, 0);
return;
}
day = g_date_get_day (date);
month = g_date_get_month (date);
year = g_date_get_year (date);
g_date_free (date);
gdk_drop_finish (drop, suggested_action);
g_object_freeze_notify (G_OBJECT (calendar));
if (!(priv->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (priv->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));
}
static gboolean
gtk_calendar_drag_motion (GtkDropTarget *dest,
int x,
int y,
GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GdkDrop *drop = gtk_drop_target_get_drop (dest);
GdkAtom target;
gtk_drag_highlight (widget);
target = gtk_drop_target_find_mimetype (dest);
if (!target || gdk_drop_get_actions (drop) == 0)
gdk_drop_status (drop, 0);
else if (get_status_pending (drop) == 0)
{
set_status_pending (drop, gdk_drop_get_actions (drop));
gdk_drop_read_text_async (drop, NULL, got_text, calendar);
}
return TRUE;
}
static gboolean
gtk_calendar_drag_drop (GtkDropTarget *dest,
int x,
int y,
GtkCalendar *calendar)
{
GdkDrop *drop = gtk_drop_target_get_drop (dest);
GdkAtom target;
target = gtk_drop_target_find_mimetype (dest);
if (target != NULL)
{
set_status_pending (drop, 0);
gdk_drop_read_text_async (drop, NULL, got_text, calendar);
return TRUE;
}
return FALSE;
}
/****************************************
* Public API *
****************************************/
/**
* gtk_calendar_new:
*
* Creates a new calendar, with the current date being selected.
*
* Returns: a newly #GtkCalendar widget
**/
GtkWidget*
gtk_calendar_new (void)
{
return g_object_new (GTK_TYPE_CALENDAR, NULL);
}
/**
* gtk_calendar_get_display_options:
* @calendar: a #GtkCalendar
*
* Returns the current display options of @calendar.
*
* Returns: the display options.
**/
GtkCalendarDisplayOptions
gtk_calendar_get_display_options (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return priv->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).
**/
void
gtk_calendar_set_display_options (GtkCalendar *calendar,
GtkCalendarDisplayOptions flags)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
gint resize = 0;
GtkCalendarDisplayOptions old_flags;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
old_flags = priv->display_flags;
if (gtk_widget_get_realized (widget))
{
if ((flags ^ priv->display_flags) & GTK_CALENDAR_NO_MONTH_CHANGE)
{
resize ++;
if (! (flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (priv->display_flags & GTK_CALENDAR_SHOW_HEADING))
{
priv->display_flags &= ~GTK_CALENDAR_NO_MONTH_CHANGE;
}
}
if ((flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_HEADING)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_HEADING)
{
priv->display_flags |= GTK_CALENDAR_SHOW_HEADING;
}
}
if ((flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_DAY_NAMES)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_DAY_NAMES)
priv->display_flags |= GTK_CALENDAR_SHOW_DAY_NAMES;
}
if ((flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
priv->display_flags |= GTK_CALENDAR_SHOW_WEEK_NUMBERS;
}
if ((flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_DETAILS)
resize++;
priv->display_flags = flags;
if (resize)
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
else
priv->display_flags = flags;
g_object_freeze_notify (G_OBJECT (calendar));
if ((old_flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_HEADING)
g_object_notify (G_OBJECT (calendar), "show-heading");
if ((old_flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_DAY_NAMES)
g_object_notify (G_OBJECT (calendar), "show-day-names");
if ((old_flags ^ priv->display_flags) & GTK_CALENDAR_NO_MONTH_CHANGE)
g_object_notify (G_OBJECT (calendar), "no-month-change");
if ((old_flags ^ priv->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.
**/
void
gtk_calendar_select_month (GtkCalendar *calendar,
guint month,
guint year)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
g_return_if_fail (month <= 11);
g_object_freeze_notify (G_OBJECT (calendar));
if (priv->month != month)
{
priv->month = month;
g_object_notify (G_OBJECT (calendar), "month");
}
if (priv->year != year)
{
priv->year = year;
g_object_notify (G_OBJECT (calendar), "year");
}
calendar_compute_days (calendar);
calendar_queue_refresh (calendar);
g_object_thaw_notify (G_OBJECT (calendar));
g_signal_emit (calendar, gtk_calendar_signals[MONTH_CHANGED_SIGNAL], 0);
}
/**
* 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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
g_return_if_fail (day <= 31);
if (priv->selected_day != day)
{
/* Deselect the old day */
if (priv->selected_day > 0)
{
if (gtk_widget_is_drawable (GTK_WIDGET (calendar)))
calendar_invalidate_day_num (calendar, priv->selected_day);
priv->selected_day = 0;
}
priv->selected_day = day;
/* Select the new day */
if (priv->selected_day > 0)
{
if (gtk_widget_is_drawable (GTK_WIDGET (calendar)))
calendar_invalidate_day_num (calendar, priv->selected_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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
guint day;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
for (day = 0; day < 31; day++)
{
priv->marked_date[day] = FALSE;
}
priv->num_marked_dates = 0;
calendar_queue_refresh (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.
*/
void
gtk_calendar_mark_day (GtkCalendar *calendar,
guint day)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (day >= 1 && day <= 31 && !priv->marked_date[day-1])
{
priv->marked_date[day - 1] = TRUE;
priv->num_marked_dates++;
calendar_invalidate_day_num (calendar, day);
}
}
/**
* gtk_calendar_get_day_is_marked:
* @calendar: a #GtkCalendar
* @day: the day number between 1 and 31.
*
* Returns if the @day of the @calendar is already marked.
*
* Returns: whether the day is marked.
*/
gboolean
gtk_calendar_get_day_is_marked (GtkCalendar *calendar,
guint day)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
if (day >= 1 && day <= 31)
return priv->marked_date[day - 1];
return FALSE;
}
/**
* 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.
*/
void
gtk_calendar_unmark_day (GtkCalendar *calendar,
guint day)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (day >= 1 && day <= 31 && priv->marked_date[day-1])
{
priv->marked_date[day - 1] = FALSE;
priv->num_marked_dates--;
calendar_invalidate_day_num (calendar, day);
}
}
/**
* gtk_calendar_get_date:
* @calendar: a #GtkCalendar
* @year: (out) (allow-none): location to store the year as a decimal
* number (e.g. 2011), or %NULL
* @month: (out) (allow-none): location to store the month number
* (between 0 and 11), or %NULL
* @day: (out) (allow-none): 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)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (year)
*year = priv->year;
if (month)
*month = priv->month;
if (day)
*day = priv->selected_day;
}
/**
* gtk_calendar_set_detail_func:
* @calendar: a #GtkCalendar.
* @func: a function providing details for each day.
* @data: data to pass to @func invokations.
* @destroy: a function for releasing @data.
*
* 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 #GtkCalendar: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 #GtkCalendar:show-details
* is not set.
*
* The size of the details area can be restricted by setting the
* #GtkCalendar:detail-width-chars and #GtkCalendar:detail-height-rows
* properties.
*/
void
gtk_calendar_set_detail_func (GtkCalendar *calendar,
GtkCalendarDetailFunc func,
gpointer data,
GDestroyNotify destroy)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (priv->detail_func_destroy)
priv->detail_func_destroy (priv->detail_func_user_data);
priv->detail_func = func;
priv->detail_func_user_data = data;
priv->detail_func_destroy = destroy;
gtk_widget_set_has_tooltip (GTK_WIDGET (calendar),
NULL != priv->detail_func);
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
/**
* gtk_calendar_set_detail_width_chars:
* @calendar: a #GtkCalendar.
* @chars: detail width in characters.
*
* Updates the width of detail cells.
* See #GtkCalendar:detail-width-chars.
*/
void
gtk_calendar_set_detail_width_chars (GtkCalendar *calendar,
gint chars)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (chars != priv->detail_width_chars)
{
priv->detail_width_chars = chars;
g_object_notify (G_OBJECT (calendar), "detail-width-chars");
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
}
/**
* gtk_calendar_set_detail_height_rows:
* @calendar: a #GtkCalendar.
* @rows: detail height in rows.
*
* Updates the height of detail cells.
* See #GtkCalendar:detail-height-rows.
*/
void
gtk_calendar_set_detail_height_rows (GtkCalendar *calendar,
gint rows)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (rows != priv->detail_height_rows)
{
priv->detail_height_rows = rows;
g_object_notify (G_OBJECT (calendar), "detail-height-rows");
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
}
/**
* gtk_calendar_get_detail_width_chars:
* @calendar: a #GtkCalendar.
*
* Queries the width of detail cells, in characters.
* See #GtkCalendar:detail-width-chars.
*
* Returns: The width of detail cells, in characters.
*/
gint
gtk_calendar_get_detail_width_chars (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return priv->detail_width_chars;
}
/**
* gtk_calendar_get_detail_height_rows:
* @calendar: a #GtkCalendar.
*
* Queries the height of detail cells, in rows.
* See #GtkCalendar:detail-width-chars.
*
* Returns: The height of detail cells, in rows.
*/
gint
gtk_calendar_get_detail_height_rows (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = gtk_calendar_get_instance_private (calendar);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return priv->detail_height_rows;
}
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