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gtk3/gtk/gtkcalendar.c

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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 "gtkdnd.h"
#include "gtkintl.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtktooltip.h"
#include "gtkprivate.h"
#include "gtkrender.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 };
struct _GtkCalendarPrivate
{
GtkCalendarDisplayOptions display_flags;
GdkWindow *main_win;
GdkWindow *arrow_win[4];
gchar grow_space [32];
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;
guint drag_highlight : 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_finalize (GObject *calendar);
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_realize (GtkWidget *widget);
static void gtk_calendar_unrealize (GtkWidget *widget);
static void gtk_calendar_map (GtkWidget *widget);
static void gtk_calendar_unmap (GtkWidget *widget);
static void gtk_calendar_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural);
static void gtk_calendar_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural);
static void gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_calendar_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_calendar_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_calendar_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gtk_calendar_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_calendar_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_calendar_scroll (GtkWidget *widget,
GdkEventScroll *event);
static gboolean gtk_calendar_key_press (GtkWidget *widget,
GdkEventKey *event);
static gboolean gtk_calendar_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_calendar_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_calendar_state_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 void gtk_calendar_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_calendar_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time);
static gboolean gtk_calendar_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void gtk_calendar_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean gtk_calendar_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void calendar_start_spinning (GtkCalendar *calendar,
gint click_child);
static void calendar_stop_spinning (GtkCalendar *calendar);
static void calendar_invalidate_day (GtkCalendar *widget,
gint row,
gint col);
static void calendar_invalidate_day_num (GtkCalendar *widget,
gint day);
static void calendar_invalidate_arrow (GtkCalendar *widget,
guint arrow);
static void calendar_compute_days (GtkCalendar *calendar);
static gint calendar_get_xsep (GtkCalendar *calendar);
static gint calendar_get_ysep (GtkCalendar *calendar);
static gint calendar_get_inner_border (GtkCalendar *calendar);
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;
gobject_class->finalize = gtk_calendar_finalize;
widget_class->destroy = gtk_calendar_destroy;
widget_class->realize = gtk_calendar_realize;
widget_class->unrealize = gtk_calendar_unrealize;
widget_class->map = gtk_calendar_map;
widget_class->unmap = gtk_calendar_unmap;
widget_class->draw = gtk_calendar_draw;
widget_class->get_preferred_width = gtk_calendar_get_preferred_width;
widget_class->get_preferred_height = gtk_calendar_get_preferred_height;
widget_class->size_allocate = gtk_calendar_size_allocate;
widget_class->button_press_event = gtk_calendar_button_press;
widget_class->button_release_event = gtk_calendar_button_release;
widget_class->motion_notify_event = gtk_calendar_motion_notify;
widget_class->enter_notify_event = gtk_calendar_enter_notify;
widget_class->leave_notify_event = gtk_calendar_leave_notify;
widget_class->key_press_event = gtk_calendar_key_press;
widget_class->scroll_event = gtk_calendar_scroll;
widget_class->state_flags_changed = gtk_calendar_state_flags_changed;
widget_class->grab_notify = gtk_calendar_grab_notify;
widget_class->focus_out_event = gtk_calendar_focus_out;
widget_class->query_tooltip = gtk_calendar_query_tooltip;
widget_class->drag_data_get = gtk_calendar_drag_data_get;
widget_class->drag_motion = gtk_calendar_drag_motion;
widget_class->drag_leave = gtk_calendar_drag_leave;
widget_class->drag_drop = gtk_calendar_drag_drop;
widget_class->drag_data_received = gtk_calendar_drag_data_received;
/**
* 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.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_HEADING,
g_param_spec_boolean ("show-heading",
P_("Show Heading"),
P_("If TRUE, a heading is displayed"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:show-day-names:
*
* Determines whether day names are displayed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_DAY_NAMES,
g_param_spec_boolean ("show-day-names",
P_("Show Day Names"),
P_("If TRUE, day names are displayed"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:no-month-change:
*
* Determines whether the selected month can be changed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_NO_MONTH_CHANGE,
g_param_spec_boolean ("no-month-change",
P_("No Month Change"),
P_("If TRUE, the selected month cannot be changed"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCalendar:show-week-numbers:
*
* Determines whether week numbers are displayed.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_SHOW_WEEK_NUMBERS,
g_param_spec_boolean ("show-week-numbers",
P_("Show Week Numbers"),
P_("If TRUE, week numbers are displayed"),
FALSE,
GTK_PARAM_READWRITE|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().
*
* Since: 2.14
*/
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().
*
* Since: 2.14
*/
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.
*
* Since: 2.14
*/
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:inner-border:
*
* The spacing around the day/week headers and main area.
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("inner-border",
P_("Inner border"),
P_("Inner border space"),
0, G_MAXINT, 4,
GTK_PARAM_READABLE));
/**
* GtkCalndar:vertical-separation:
*
* Separation between day headers and main area.
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("vertical-separation",
P_("Vertical separation"),
P_("Space between day headers and main area"),
0, G_MAXINT, 4,
GTK_PARAM_READABLE));
/**
* GtkCalendar:horizontal-separation:
*
* Separation between week headers and main area.
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("horizontal-separation",
P_("Horizontal separation"),
P_("Space between week headers and main area"),
0, G_MAXINT, 4,
GTK_PARAM_READABLE));
/**
* 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,
_gtk_marshal_VOID__VOID,
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,
_gtk_marshal_VOID__VOID,
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,
_gtk_marshal_VOID__VOID,
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,
_gtk_marshal_VOID__VOID,
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,
_gtk_marshal_VOID__VOID,
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,
_gtk_marshal_VOID__VOID,
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,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_CALENDAR);
gtk_widget_class_set_css_name (widget_class, "calendar");
}
static void
gtk_calendar_init (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
time_t secs;
struct tm *tm;
gint i;
#ifdef G_OS_WIN32
wchar_t wbuffer[100];
#else
char buffer[255];
time_t tmp_time;
#endif
GtkCalendarPrivate *priv;
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
priv = calendar->priv = gtk_calendar_get_instance_private (calendar);
gtk_widget_set_can_focus (widget, TRUE);
gtk_widget_set_has_window (widget, FALSE);
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;
strftime ( buffer, sizeof (buffer), "%B", 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;
priv->drag_highlight = 0;
gtk_drag_dest_set (widget, 0, NULL, 0, GDK_ACTION_COPY);
gtk_drag_dest_add_text_targets (widget);
priv->year_before = 0;
/* Translate to calendar:YM if you want years to be displayed
* before months; otherwise translate to calendar:MY.
* Do *not* translate it to anything else, if it
* it isn't calendar:YM or calendar:MY it will not work.
*
* Note that 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);
}
/****************************************
* Utility Functions *
****************************************/
static void
calendar_queue_refresh (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = calendar->priv;
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)
{
gint month_len;
GtkCalendarPrivate *priv = calendar->priv;
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 = calendar->priv;
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 = calendar->priv;
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 = calendar->priv;
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 = calendar->priv;
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 = calendar->priv;
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 *padding,
GtkBorder *day_padding,
GtkBorder *day_name_padding,
GtkBorder *week_padding)
{
GtkStyleContext * context;
GtkStateFlags state;
GtkWidget *widget;
widget = GTK_WIDGET (calendar);
context = gtk_widget_get_style_context (widget);
state = gtk_style_context_get_state (context);
if (padding)
gtk_style_context_get_padding (context, state, padding);
if (day_padding)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, "day-number");
gtk_style_context_get_padding (context, state, day_padding);
gtk_style_context_restore (context);
}
if (day_name_padding)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, "day-name");
gtk_style_context_get_padding (context, state, day_name_padding);
gtk_style_context_restore (context);
}
if (week_padding)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, "week-number");
gtk_style_context_get_padding (context, state, 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 = calendar->priv;
gint width;
gint x_left;
gint week_width;
gint calendar_xsep = calendar_get_xsep (calendar);
gint inner_border = calendar_get_inner_border (calendar);
GtkBorder padding;
get_component_paddings (calendar, &padding, NULL, NULL, NULL);
week_width = priv->week_width + padding.left + inner_border;
if (gtk_widget_get_direction (GTK_WIDGET (calendar)) == GTK_TEXT_DIR_RTL)
{
column = 6 - column;
week_width = 0;
}
width = calendar->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)
{
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 + calendar->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 = calendar->priv;
GtkBorder padding;
gint inner_border = calendar_get_inner_border (calendar);
get_component_paddings (calendar, &padding, NULL, NULL, NULL);
return priv->header_h + priv->day_name_h + padding.top + 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)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
GtkAllocation allocation;
GtkBorder padding;
gboolean year_left;
get_component_paddings (calendar, &padding, NULL, NULL, NULL);
gtk_widget_get_allocation (widget, &allocation);
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 = (allocation.width - padding.left - padding.right
- (3 + 2 * priv->arrow_width + priv->max_month_width));
else
rect->x = 3;
break;
case ARROW_MONTH_RIGHT:
if (year_left)
rect->x = (allocation.width - padding.left - padding.right
- 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 = (allocation.width - padding.left - padding.right
- (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 = (allocation.width - padding.left - padding.right
- 3 - priv->arrow_width);
break;
}
rect->x += padding.left;
rect->y += padding.top;
}
static void
calendar_day_rectangle (GtkCalendar *calendar,
gint row,
gint col,
GdkRectangle *rect)
{
GtkCalendarPrivate *priv = calendar->priv;
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 = calendar->priv;
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_finalize (GObject *object)
{
G_OBJECT_CLASS (gtk_calendar_parent_class)->finalize (object);
}
static void
gtk_calendar_destroy (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
calendar_stop_spinning (GTK_CALENDAR (widget));
/* 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 = calendar->priv;
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 = calendar->priv;
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 = calendar->priv;
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 = calendar->priv;
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;
}
}
/****************************************
* Realization *
****************************************/
static void
calendar_realize_arrows (GtkCalendar *calendar)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
GdkWindowAttr attributes;
gint attributes_mask;
gint i;
GtkAllocation allocation;
if (! (priv->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (priv->display_flags & GTK_CALENDAR_SHOW_HEADING))
{
gtk_widget_get_allocation (widget, &allocation);
attributes.wclass = GDK_INPUT_ONLY;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.event_mask = (gtk_widget_get_events (widget)
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
| GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y;
for (i = 0; i < 4; i++)
{
GdkRectangle rect;
calendar_arrow_rectangle (calendar, i, &rect);
attributes.x = allocation.x + rect.x;
attributes.y = allocation.y + rect.y;
attributes.width = rect.width;
attributes.height = rect.height;
priv->arrow_win[i] = gdk_window_new (gtk_widget_get_window (widget),
&attributes,
attributes_mask);
gtk_widget_register_window (widget, priv->arrow_win[i]);
}
priv->arrow_prelight = 0x0;
}
else
{
for (i = 0; i < 4; i++)
priv->arrow_win[i] = NULL;
}
}
static void
calendar_unrealize_arrows (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = calendar->priv;
gint i;
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
{
gtk_widget_unregister_window (GTK_WIDGET (calendar), priv->arrow_win[i]);
gdk_window_destroy (priv->arrow_win[i]);
priv->arrow_win[i] = NULL;
}
}
}
static gint
calendar_get_inner_border (GtkCalendar *calendar)
{
gint inner_border;
gtk_widget_style_get (GTK_WIDGET (calendar),
"inner-border", &inner_border,
NULL);
return inner_border;
}
static gint
calendar_get_xsep (GtkCalendar *calendar)
{
gint xsep;
gtk_widget_style_get (GTK_WIDGET (calendar),
"horizontal-separation", &xsep,
NULL);
return xsep;
}
static gint
calendar_get_ysep (GtkCalendar *calendar)
{
gint ysep;
gtk_widget_style_get (GTK_WIDGET (calendar),
"vertical-separation", &ysep,
NULL);
return ysep;
}
static void
gtk_calendar_realize (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
GdkWindowAttr attributes;
gint attributes_mask;
gint inner_border = calendar_get_inner_border (GTK_CALENDAR (widget));
GtkAllocation allocation;
GtkBorder padding;
get_component_paddings (GTK_CALENDAR (widget), &padding, NULL, NULL, NULL);
gtk_widget_get_allocation (widget, &allocation);
GTK_WIDGET_CLASS (gtk_calendar_parent_class)->realize (widget);
attributes.wclass = GDK_INPUT_ONLY;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.event_mask = (gtk_widget_get_events (widget)
| GDK_SCROLL_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK
| GDK_POINTER_MOTION_MASK
| GDK_LEAVE_NOTIFY_MASK);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
attributes.x = priv->week_width + padding.left + inner_border;
else
attributes.x = padding.left + inner_border;
attributes.y = priv->header_h + priv->day_name_h + padding.top + inner_border;
attributes.width = allocation.width - attributes.x - (padding.right + inner_border);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
attributes.width -= priv->week_width;
attributes.height = priv->main_h;
attributes_mask = GDK_WA_X | GDK_WA_Y;
attributes.x += allocation.x;
attributes.y += allocation.y;
priv->main_win = gdk_window_new (gtk_widget_get_window (widget),
&attributes, attributes_mask);
gtk_widget_register_window (widget, priv->main_win);
calendar_realize_arrows (GTK_CALENDAR (widget));
}
static void
gtk_calendar_unrealize (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
calendar_unrealize_arrows (GTK_CALENDAR (widget));
if (priv->main_win)
{
gtk_widget_unregister_window (widget, priv->main_win);
gdk_window_destroy (priv->main_win);
priv->main_win = NULL;
}
GTK_WIDGET_CLASS (gtk_calendar_parent_class)->unrealize (widget);
}
static void
calendar_map_arrows (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = calendar->priv;
gint i;
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
gdk_window_show (priv->arrow_win[i]);
}
}
static void
calendar_unmap_arrows (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = calendar->priv;
gint i;
for (i = 0; i < 4; i++)
{
if (priv->arrow_win[i])
gdk_window_hide (priv->arrow_win[i]);
}
}
static void
gtk_calendar_map (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
GTK_WIDGET_CLASS (gtk_calendar_parent_class)->map (widget);
gdk_window_show (priv->main_win);
calendar_map_arrows (GTK_CALENDAR (widget));
}
static void
gtk_calendar_unmap (GtkWidget *widget)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
calendar_unmap_arrows (GTK_CALENDAR (widget));
gdk_window_hide (priv->main_win);
GTK_WIDGET_CLASS (gtk_calendar_parent_class)->unmap (widget);
}
static gchar*
gtk_calendar_get_detail (GtkCalendar *calendar,
gint row,
gint column)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (calendar)->priv;
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 = calendar->priv;
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 = calendar->priv;
GtkBorder padding, 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, &padding, &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) + padding.left + padding.right;
/*
* 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 + padding.top + padding.bottom + (inner_border * 2);
g_object_unref (layout);
}
static void
gtk_calendar_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkRequisition requisition;
gtk_calendar_size_request (widget, &requisition);
*minimum = *natural = requisition.width;
}
static void
gtk_calendar_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkRequisition requisition;
gtk_calendar_size_request (widget, &requisition);
*minimum = *natural = requisition.height;
}
static void
gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
GtkBorder padding;
guint i;
gint inner_border = calendar_get_inner_border (calendar);
gint calendar_xsep = calendar_get_xsep (calendar);
get_component_paddings (calendar, &padding, NULL, NULL, NULL);
gtk_widget_set_allocation (widget, allocation);
if (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
priv->day_width = (priv->min_day_width
* ((allocation->width - (inner_border * 2) - padding.left - padding.right
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 6) - calendar_xsep * 2))
/ (7 * priv->min_day_width + priv->max_week_char_width * 2));
priv->week_width = ((allocation->width - (inner_border * 2) - padding.left - padding.right
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 6) - calendar_xsep * 2 )
- priv->day_width * 7 + CALENDAR_MARGIN + calendar_xsep);
}
else
{
priv->day_width = (allocation->width
- (inner_border * 2)
- padding.left - padding.right
- (CALENDAR_MARGIN * 2)
- (DAY_XSEP * 6))/7;
priv->week_width = 0;
}
if (gtk_widget_get_realized (widget))
{
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
gdk_window_move_resize (priv->main_win,
allocation->x
+ priv->week_width + padding.left + inner_border,
allocation->y
+ priv->header_h + priv->day_name_h
+ (padding.top + inner_border),
allocation->width - priv->week_width
- (inner_border * 2) - padding.left - padding.right,
priv->main_h);
else
gdk_window_move_resize (priv->main_win,
allocation->x
+ padding.left + inner_border,
allocation->y
+ priv->header_h + priv->day_name_h
+ padding.top + inner_border,
allocation->width - priv->week_width
- (inner_border * 2) - padding.left - padding.right,
priv->main_h);
for (i = 0 ; i < 4 ; i++)
{
if (priv->arrow_win[i])
{
GdkRectangle rect;
calendar_arrow_rectangle (calendar, i, &rect);
gdk_window_move_resize (priv->arrow_win[i],
allocation->x + rect.x,
allocation->y + rect.y,
rect.width, rect.height);
}
}
}
}
/****************************************
* Repainting *
****************************************/
static void
calendar_paint_header (GtkCalendar *calendar, cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
GtkAllocation allocation;
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding;
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;
get_component_paddings (calendar, &padding, NULL, NULL, NULL);
context = gtk_widget_get_style_context (widget);
cairo_save (cr);
cairo_translate (cr, padding.left, padding.top);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
year_left = priv->year_before;
else
year_left = !priv->year_before;
gtk_widget_get_allocation (widget, &allocation);
header_width = allocation.width - padding.left - padding.right;
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_render_background (context, cr, 0, 0, header_width, priv->header_h);
gtk_render_frame (context, cr, 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_render_layout (context, cr, 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_render_layout (context, cr, x, y, layout);
g_object_unref (layout);
gtk_style_context_restore (context);
cairo_restore (cr);
}
static void
calendar_paint_day_names (GtkCalendar *calendar,
cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding, day_name_padding;
GtkAllocation allocation;
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, &padding, NULL, &day_name_padding, NULL);
context = gtk_widget_get_style_context (widget);
cairo_save (cr);
cairo_translate (cr,
padding.left + inner_border,
priv->header_h + padding.top + inner_border);
gtk_widget_get_allocation (widget, &allocation);
day_width = priv->day_width;
cal_width = allocation.width - (inner_border * 2) - padding.left - padding.right;
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_render_background (context, cr,
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_render_background (context, cr,
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_render_layout (context, cr,
(CALENDAR_MARGIN +
+ (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR ?
(priv->week_width + (priv->week_width ? calendar_xsep : 0))
: 0)
+ day_wid_sep * i
+ (day_width - logical_rect.width)/2),
CALENDAR_MARGIN + day_name_padding.top + logical_rect.y,
layout);
}
g_object_unref (layout);
gtk_style_context_restore (context);
cairo_restore (cr);
}
static void
calendar_paint_week_numbers (GtkCalendar *calendar,
cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding, 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, &padding, NULL, NULL, &week_padding);
context = gtk_widget_get_style_context (widget);
cairo_save (cr);
y = priv->header_h + priv->day_name_h + (padding.top + inner_border);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
x = padding.left + inner_border;
else
x = gtk_widget_get_allocated_width (widget) - priv->week_width - (padding.right + 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_render_background (context, cr,
x + CALENDAR_MARGIN, y,
priv->week_width - CALENDAR_MARGIN,
priv->main_h - CALENDAR_MARGIN);
else
gtk_render_background (context, cr,
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_render_layout (context, cr, x_loc, y_loc, layout);
}
g_object_unref (layout);
gtk_style_context_restore (context);
cairo_restore (cr);
}
static void
calendar_invalidate_day_num (GtkCalendar *calendar,
gint day)
{
GtkCalendarPrivate *priv = calendar->priv;
gint r, c, row, col;
row = -1;
col = -1;
for (r = 0; r < 6; r++)
for (c = 0; c < 7; c++)
if (priv->day_month[r][c] == MONTH_CURRENT &&
priv->day[r][c] == day)
{
row = r;
col = c;
}
g_return_if_fail (row != -1);
g_return_if_fail (col != -1);
calendar_invalidate_day (calendar, row, col);
}
static void
calendar_invalidate_day (GtkCalendar *calendar,
gint row,
gint col)
{
GdkRectangle day_rect;
GtkAllocation allocation;
gtk_widget_get_allocation (GTK_WIDGET (calendar), &allocation);
calendar_day_rectangle (calendar, row, col, &day_rect);
gtk_widget_queue_draw_area (GTK_WIDGET (calendar),
allocation.x + day_rect.x,
allocation.y + day_rect.y,
day_rect.width, day_rect.height);
}
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_paint_day (GtkCalendar *calendar,
cairo_t *cr,
gint row,
gint col)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
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_render_background (context, cr,
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_render_layout (context, cr, x_loc, y_loc, layout);
if (priv->day_month[row][col] == MONTH_CURRENT &&
(priv->marked_date[day-1] || (detail && !show_details)))
gtk_render_layout (context, cr, x_loc - 1, y_loc, layout);
y_loc += priv->max_day_char_descent;
if (priv->detail_func && show_details)
{
GdkRGBA color;
cairo_save (cr);
gtk_style_context_get_color (context, state, &color);
gdk_cairo_set_source_rgba (cr, &color);
cairo_set_line_width (cr, 1);
cairo_move_to (cr, day_rect.x + 2, y_loc + 0.5);
cairo_line_to (cr, day_rect.x + day_rect.width - 2, y_loc + 0.5);
cairo_stroke (cr);
cairo_restore (cr);
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);
}
cairo_move_to (cr, day_rect.x, y_loc);
pango_cairo_show_layout (cr, layout);
}
if (gtk_widget_has_visible_focus (widget) &&
priv->focus_row == row && priv->focus_col == col)
gtk_render_focus (context, cr,
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_paint_main (GtkCalendar *calendar,
cairo_t *cr)
{
gint row, col;
cairo_save (cr);
for (col = 0; col < 7; col++)
for (row = 0; row < 6; row++)
calendar_paint_day (calendar, cr, row, col);
cairo_restore (cr);
}
static void
calendar_invalidate_arrow (GtkCalendar *calendar,
guint arrow)
{
GtkCalendarPrivate *priv = calendar->priv;
if (priv->display_flags & GTK_CALENDAR_SHOW_HEADING &&
priv->arrow_win[arrow])
{
GdkRectangle rect;
GtkAllocation allocation;
calendar_arrow_rectangle (calendar, arrow, &rect);
gtk_widget_get_allocation (GTK_WIDGET (calendar), &allocation);
gtk_widget_queue_draw_area (GTK_WIDGET (calendar),
allocation.x + rect.x,
allocation.y + rect.y,
rect.width, rect.height);
}
}
static void
calendar_paint_arrow (GtkCalendar *calendar,
cairo_t *cr,
guint arrow)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
GtkStyleContext *context;
GtkStateFlags state;
GdkRectangle rect;
gdouble angle;
if (!priv->arrow_win[arrow])
return;
calendar_arrow_rectangle (calendar, arrow, &rect);
cairo_save (cr);
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_render_background (context, cr,
rect.x, rect.y,
rect.width, rect.height);
if (arrow == ARROW_MONTH_LEFT || arrow == ARROW_YEAR_LEFT)
angle = 3 * (G_PI / 2);
else
angle = G_PI / 2;
gtk_render_arrow (context, cr, angle,
rect.x + (rect.width - 8) / 2,
rect.y + (rect.height - 8) / 2,
8);
gtk_style_context_restore (context);
cairo_restore (cr);
}
static gboolean
gtk_calendar_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
int i;
if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)))
{
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
gtk_render_background (context, cr, 0, 0,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
gtk_render_frame (context, cr, 0, 0,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
gtk_style_context_restore (context);
}
calendar_paint_main (calendar, cr);
if (priv->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
calendar_paint_header (calendar, cr);
for (i = 0; i < 4; i++)
calendar_paint_arrow (calendar, cr, i);
}
if (priv->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
calendar_paint_day_names (calendar, cr);
if (priv->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
calendar_paint_week_numbers (calendar, cr);
return FALSE;
}
/****************************************
* 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 = calendar->priv;
gboolean retval = FALSE;
if (priv->timer)
{
calendar_arrow_action (calendar, priv->click_child);
if (priv->need_timer)
{
priv->need_timer = FALSE;
priv->timer = gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT_IDLE,
TIMEOUT_REPEAT * SCROLL_DELAY_FACTOR,
(GSourceFunc) calendar_timer,
(gpointer) 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 = calendar->priv;
priv->click_child = click_child;
if (!priv->timer)
{
priv->need_timer = TRUE;
priv->timer = gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT_IDLE,
TIMEOUT_INITIAL,
(GSourceFunc) calendar_timer,
(gpointer) calendar, NULL);
g_source_set_name_by_id (priv->timer, "[gtk+] calendar_timer");
}
}
static void
calendar_stop_spinning (GtkCalendar *calendar)
{
GtkCalendarPrivate *priv = calendar->priv;
if (priv->timer)
{
g_source_remove (priv->timer);
priv->timer = 0;
priv->need_timer = FALSE;
}
}
static void
calendar_main_button_press (GtkCalendar *calendar,
GdkEventButton *event)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
gint x, y;
gint win_x, win_y;
gint row, col;
gint day_month;
gint day;
GtkAllocation allocation;
x = (gint) (event->x);
y = (gint) (event->y);
gdk_window_get_position (priv->main_win, &win_x, &win_y);
gtk_widget_get_allocation (widget, &allocation);
row = calendar_row_from_y (calendar, y + win_y - allocation.y);
col = calendar_column_from_x (calendar, x + win_x - allocation.x);
/* If row or column isn't found, just return. */
if (row == -1 || col == -1)
return;
day_month = priv->day_month[row][col];
if (event->type == GDK_BUTTON_PRESS)
{
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 (event->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 (event->type == GDK_2BUTTON_PRESS)
{
priv->in_drag = 0;
if (day_month == MONTH_CURRENT)
g_signal_emit (calendar,
gtk_calendar_signals[DAY_SELECTED_DOUBLE_CLICK_SIGNAL],
0);
}
}
static gboolean
gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
gint arrow = -1;
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
if (event->window == priv->main_win)
calendar_main_button_press (calendar, event);
for (arrow = ARROW_YEAR_LEFT; arrow <= ARROW_MONTH_RIGHT; arrow++)
{
if (event->window == priv->arrow_win[arrow])
{
/* only call the action on single click, not double */
if (event->type == GDK_BUTTON_PRESS)
{
if (event->button == GDK_BUTTON_PRIMARY)
calendar_start_spinning (calendar, arrow);
calendar_arrow_action (calendar, arrow);
}
return TRUE;
}
}
return FALSE;
}
static gboolean
gtk_calendar_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
if (event->button == GDK_BUTTON_PRIMARY)
{
calendar_stop_spinning (calendar);
if (priv->in_drag)
priv->in_drag = 0;
}
return TRUE;
}
static gboolean
gtk_calendar_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
if (priv->in_drag)
{
if (gtk_drag_check_threshold (widget,
priv->drag_start_x, priv->drag_start_y,
event->x, event->y))
{
GdkDragContext *context;
GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
gtk_target_list_add_text_targets (target_list, 0);
context = gtk_drag_begin_with_coordinates (widget, target_list, GDK_ACTION_COPY,
1, (GdkEvent *)event,
priv->drag_start_x, priv->drag_start_y);
priv->in_drag = 0;
gtk_target_list_unref (target_list);
gtk_drag_set_icon_default (context);
}
}
return TRUE;
}
static gboolean
gtk_calendar_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
if (event->window == priv->arrow_win[ARROW_MONTH_LEFT])
{
priv->arrow_prelight |= (1 << ARROW_MONTH_LEFT);
calendar_invalidate_arrow (calendar, ARROW_MONTH_LEFT);
}
if (event->window == priv->arrow_win[ARROW_MONTH_RIGHT])
{
priv->arrow_prelight |= (1 << ARROW_MONTH_RIGHT);
calendar_invalidate_arrow (calendar, ARROW_MONTH_RIGHT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_LEFT])
{
priv->arrow_prelight |= (1 << ARROW_YEAR_LEFT);
calendar_invalidate_arrow (calendar, ARROW_YEAR_LEFT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_RIGHT])
{
priv->arrow_prelight |= (1 << ARROW_YEAR_RIGHT);
calendar_invalidate_arrow (calendar, ARROW_YEAR_RIGHT);
}
return TRUE;
}
static gboolean
gtk_calendar_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
if (event->window == priv->arrow_win[ARROW_MONTH_LEFT])
{
priv->arrow_prelight &= ~(1 << ARROW_MONTH_LEFT);
calendar_invalidate_arrow (calendar, ARROW_MONTH_LEFT);
}
if (event->window == priv->arrow_win[ARROW_MONTH_RIGHT])
{
priv->arrow_prelight &= ~(1 << ARROW_MONTH_RIGHT);
calendar_invalidate_arrow (calendar, ARROW_MONTH_RIGHT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_LEFT])
{
priv->arrow_prelight &= ~(1 << ARROW_YEAR_LEFT);
calendar_invalidate_arrow (calendar, ARROW_YEAR_LEFT);
}
if (event->window == priv->arrow_win[ARROW_YEAR_RIGHT])
{
priv->arrow_prelight &= ~(1 << ARROW_YEAR_RIGHT);
calendar_invalidate_arrow (calendar, ARROW_YEAR_RIGHT);
}
return TRUE;
}
static gboolean
gtk_calendar_scroll (GtkWidget *widget,
GdkEventScroll *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
if (event->direction == GDK_SCROLL_UP)
{
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
calendar_set_month_prev (calendar);
}
else if (event->direction == GDK_SCROLL_DOWN)
{
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
calendar_set_month_next (calendar);
}
else
return FALSE;
return TRUE;
}
/****************************************
* Key handling *
****************************************/
static void
move_focus (GtkCalendar *calendar,
gint direction)
{
GtkCalendarPrivate *priv = calendar->priv;
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_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
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 (event->keyval)
{
case GDK_KEY_KP_Left:
case GDK_KEY_Left:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
calendar_set_month_prev (calendar);
else
{
move_focus (calendar, -1);
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, priv->focus_row,
priv->focus_col);
}
break;
case GDK_KEY_KP_Right:
case GDK_KEY_Right:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
calendar_set_month_next (calendar);
else
{
move_focus (calendar, 1);
calendar_invalidate_day (calendar, old_focus_row, old_focus_col);
calendar_invalidate_day (calendar, priv->focus_row,
priv->focus_col);
}
break;
case GDK_KEY_KP_Up:
case GDK_KEY_Up:
return_val = TRUE;
if (event->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 (event->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);
}
}
return return_val;
}
/****************************************
* Misc widget methods *
****************************************/
static void
gtk_calendar_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
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)
{
if (!was_grabbed)
calendar_stop_spinning (GTK_CALENDAR (widget));
}
static gboolean
gtk_calendar_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
calendar_queue_refresh (calendar);
calendar_stop_spinning (calendar);
calendar->priv->in_drag = 0;
return FALSE;
}
/****************************************
* Drag and Drop *
****************************************/
static void
gtk_calendar_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
GDate *date;
gchar str[128];
gsize len;
date = g_date_new_dmy (priv->selected_day, priv->month + 1, priv->year);
len = g_date_strftime (str, 127, "%x", date);
gtk_selection_data_set_text (selection_data, str, len);
g_free (date);
}
/* Get/set whether drag_motion requested the drag data and
* drag_data_received should thus not actually insert the data,
* since the data doesn’t result from a drop.
*/
static void
set_status_pending (GdkDragContext *context,
GdkDragAction suggested_action)
{
g_object_set_data (G_OBJECT (context),
I_("gtk-calendar-status-pending"),
GINT_TO_POINTER (suggested_action));
}
static GdkDragAction
get_status_pending (GdkDragContext *context)
{
return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
"gtk-calendar-status-pending"));
}
static void
gtk_calendar_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
priv->drag_highlight = 0;
gtk_drag_unhighlight (widget);
}
static gboolean
gtk_calendar_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkCalendarPrivate *priv = GTK_CALENDAR (widget)->priv;
GdkAtom target;
if (!priv->drag_highlight)
{
priv->drag_highlight = 1;
gtk_drag_highlight (widget);
}
target = gtk_drag_dest_find_target (widget, context, NULL);
if (target == GDK_NONE || gdk_drag_context_get_suggested_action (context) == 0)
gdk_drag_status (context, 0, time);
else
{
set_status_pending (context, gdk_drag_context_get_suggested_action (context));
gtk_drag_get_data (widget, context, target, time);
}
return TRUE;
}
static gboolean
gtk_calendar_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GdkAtom target;
target = gtk_drag_dest_find_target (widget, context, NULL);
if (target != GDK_NONE)
{
gtk_drag_get_data (widget, context,
target,
time);
return TRUE;
}
return FALSE;
}
static void
gtk_calendar_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkCalendar *calendar = GTK_CALENDAR (widget);
GtkCalendarPrivate *priv = calendar->priv;
guint day, month, year;
gchar *str;
GDate *date;
GdkDragAction suggested_action;
suggested_action = get_status_pending (context);
if (suggested_action)
{
set_status_pending (context, 0);
/* We are getting this data due to a request in drag_motion,
* rather than due to a request in drag_drop, so we are just
* supposed to call drag_status, not actually paste in the
* data.
*/
str = (gchar*) gtk_selection_data_get_text (selection_data);
if (str)
{
date = g_date_new ();
g_date_set_parse (date, str);
if (!g_date_valid (date))
suggested_action = 0;
g_date_free (date);
g_free (str);
}
else
suggested_action = 0;
gdk_drag_status (context, suggested_action, time);
return;
}
date = g_date_new ();
str = (gchar*) gtk_selection_data_get_text (selection_data);
if (str)
{
g_date_set_parse (date, str);
g_free (str);
}
if (!g_date_valid (date))
{
g_warning ("Received invalid date data");
g_date_free (date);
gtk_drag_finish (context, FALSE, FALSE, time);
return;
}
day = g_date_get_day (date);
month = g_date_get_month (date);
year = g_date_get_year (date);
g_date_free (date);
gtk_drag_finish (context, TRUE, FALSE, time);
g_object_freeze_notify (G_OBJECT (calendar));
if (!(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));
}
/****************************************
* 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.
*
* Since: 2.4
**/
GtkCalendarDisplayOptions
gtk_calendar_get_display_options (GtkCalendar *calendar)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return calendar->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).
*
* Since: 2.4
**/
void
gtk_calendar_set_display_options (GtkCalendar *calendar,
GtkCalendarDisplayOptions flags)
{
GtkWidget *widget = GTK_WIDGET (calendar);
GtkCalendarPrivate *priv = calendar->priv;
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;
calendar_realize_arrows (calendar);
if (gtk_widget_get_mapped (widget))
calendar_map_arrows (calendar);
}
else
{
calendar_unrealize_arrows (calendar);
}
}
if ((flags ^ priv->display_flags) & GTK_CALENDAR_SHOW_HEADING)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_HEADING)
{
priv->display_flags |= GTK_CALENDAR_SHOW_HEADING;
calendar_realize_arrows (calendar);
if (gtk_widget_get_mapped (widget))
calendar_map_arrows (calendar);
}
else
{
calendar_unrealize_arrows (calendar);
}
}
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;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
g_return_if_fail (month <= 11);
priv = calendar->priv;
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;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
g_return_if_fail (day <= 31);
priv = calendar->priv;
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;
guint day;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
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;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
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.
*
* Since: 3.0
*/
gboolean
gtk_calendar_get_day_is_marked (GtkCalendar *calendar,
guint day)
{
GtkCalendarPrivate *priv;
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
priv = calendar->priv;
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;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
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;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
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.
*
* Since: 2.14
*/
void
gtk_calendar_set_detail_func (GtkCalendar *calendar,
GtkCalendarDetailFunc func,
gpointer data,
GDestroyNotify destroy)
{
GtkCalendarPrivate *priv;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
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.
*
* Since: 2.14
*/
void
gtk_calendar_set_detail_width_chars (GtkCalendar *calendar,
gint chars)
{
GtkCalendarPrivate *priv;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
if (chars != priv->detail_width_chars)
{
priv->detail_width_chars = chars;
g_object_notify (G_OBJECT (calendar), "detail-width-chars");
gtk_widget_queue_resize_no_redraw (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.
*
* Since: 2.14
*/
void
gtk_calendar_set_detail_height_rows (GtkCalendar *calendar,
gint rows)
{
GtkCalendarPrivate *priv;
g_return_if_fail (GTK_IS_CALENDAR (calendar));
priv = calendar->priv;
if (rows != priv->detail_height_rows)
{
priv->detail_height_rows = rows;
g_object_notify (G_OBJECT (calendar), "detail-height-rows");
gtk_widget_queue_resize_no_redraw (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.
*
* Since: 2.14
*
* Returns: The width of detail cells, in characters.
*/
gint
gtk_calendar_get_detail_width_chars (GtkCalendar *calendar)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return calendar->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.
*
* Since: 2.14
*
* Returns: The height of detail cells, in rows.
*/
gint
gtk_calendar_get_detail_height_rows (GtkCalendar *calendar)
{
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), 0);
return calendar->priv->detail_height_rows;
}
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