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gtk2/gtk/gtkcalendar.c
Tim Janik 9595c55184 documented necessary changes for 1.4 transition. 
Fri May 12 17:13:32 2000  Tim Janik  <timj@gtk.org>

	* docs/Changes-1.4.txt: documented necessary changes for 1.4 transition.

	* gtk/gtktext.c: made the adjustments no-construct args, simply
	provide default adjustments.
	(gtk_text_destroy): release adjustments.

	* gtk/gtkprogressbar.c (gtk_progress_bar_class_init): made the
	adjustment argument non-construct.

	* gtk/gtkprogress.c (gtk_progress_destroy): release adjustment here,
	instead of in finalize.
	(gtk_progress_get_text_from_value):
	(gtk_progress_get_current_text):
	(gtk_progress_set_value):
	(gtk_progress_get_percentage_from_value):
	(gtk_progress_get_current_percentage):
	(gtk_progress_set_percentage):
	(gtk_progress_configure): ensure an adjustment is present.

Thu May 11 01:24:08 2000  Tim Janik  <timj@gtk.org>

	* gtk/gtkcolorsel.[hc]:
	* gtk/gtkcolorseldialog.[hc]:
	* gtk/gtkhsv.[hc]: major code cleanups, destroy handlers need to chain
	their parent implementation, use bit fields for boolean values, don't
	create unused widgets, usage of glib types, braces go on their own
	lines, function argument alignment, #include directives etc. etc. etc..

	* gtk/Makefile.am (gtk_public_h_sources): install gtkhsv.h.

Wed May 10 23:29:52 2000  Tim Janik  <timj@gtk.org>

	* gtk/gtktoolbar.c (gtk_toolbar_destroy): don't unref a NULL tooltips.

	* gtk/gtkfilesel.c (gtk_file_selection_destroy): don't free a cmpl_state
	of NULL.

	* gtk/gtkcombo.c (gtk_combo_item_destroy): don#t keep references
	to freed data.
	(gtk_combo_destroy): don't keep a pointer to a destroyed window.

	* gtk/gtkmenu.c (gtk_menu_init): reset the menu's toplevel pointer
	to NULL when the toplevel is getting destroyed.
	(gtk_menu_set_tearoff_state): same here for the tearoff_window.
	(gtk_menu_destroy):
	(gtk_menu_init): store the information of whether we have to
	readd the initial child ref_count during destruction in a new
	GtkMenu field needs_destruction_ref_count.

	* gtk/gtkviewport.c: SHAME! ok this one is tricky, so i note it
	here, those reading: learn from my mistake! ;)
	in order for set_?adjustment to support a default adjustemnt if
	invoked with an adjustment pointer of NULL, the code read (pseudo):
	if (v->adjustment) unref (v->adjustment);
	if (!adjustment) adjustment = adjustment_new ();
	if (v->adjustment != adjustment) v->adjustment = ref (adjustment);
	now imagine the first unref to actually free the old adjustment and
	adjustment_new() creating a new adjustment from the very same memory
	portion. here, the latter comparision will unintendedly fail, and
	all hell breaks loose.
	(gtk_viewport_set_hadjustment):
	(gtk_viewport_set_vadjustment): reset viewport->?adjustment to NULL
	after unreferencing it.

	* gtk/gtkcontainer.[hc]: removed toplevel registration
	functions: gtk_container_register_toplevel(),
	gtk_container_unregister_toplevel() and
	gtk_container_get_toplevels() which had wrong semantics
	anyways: it didn't reference and copy the list.

	* gtk/gtkwindow.c: we take over the container toplevel registration
	bussiness now. windows are registered across multiple destructions,
	untill they are finalized. the initial implicit reference count
	users are holding on windows is removed with the first destruction
	though.
	(gtk_window_init): ref & sink and set has_user_ref_count, got
	rid of gtk_container_register_toplevel() call. add window to
	toplevel_list.
	(gtk_window_destroy): unref the window if has_user_ref_count
	is still set, got rid of call to
	gtk_container_unregister_toplevel().
	(gtk_window_finalize): remove window from toplevel list.
	(gtk_window_list_toplevels): new function to return a newly
	created list with referenced toplevels.
	(gtk_window_read_rcfiles): use gtk_window_list_toplevels().

	* gtk/gtkhscale.c (gtk_hscale_class_init): made the GtkRange
	adjustment a non-construct arg.
	* gtk/gtkvscale.c (gtk_vscale_class_init): likewise.
	* gtk/gtkhscrollbar.c (gtk_vscrollbar_class_init): likewise.
	* gtk/gtkvscrollbar.c (gtk_vscrollbar_class_init): likewise.

	* gtk/gtkrange.c: added some realized checks.
	(gtk_range_destroy): get rid of the h/v adjustments in the
	destroy handler instead of finalize. remove timer.
	(gtk_range_get_adjustment): demand create adjustment.

	* gtk/gtkviewport.c: made h/v adjustment non-construct args.
	we simply create them on demand now and get rid of them in
	the destroy handler.
	(gtk_viewport_destroy): get rid of the h/v adjustments in the
	destroy handler instead of finalize.
	(gtk_viewport_get_hadjustment):
	(gtk_viewport_get_vadjustment):
	(gtk_viewport_size_allocate): demand create h/v adjustment
	if required.

	* gtk/gtkwidget.c (gtk_widget_finalize): duplicate part of the
	gtk_widget_real_destroy () functionality.
	(gtk_widget_real_destroy): reinitialize with a new style, instead
	of setting widget->style to NULL.

Fri May  5 13:02:09 2000  Tim Janik  <timj@gtk.org>

	* gtk/gtkcalendar.c:
	* gtk/gtkbutton.c: ported _get_type() implementation over to
	GType, either to preserve memchunks allocation facilities,
	or because Gtk+ 1.0 GtkTypeInfo was still being used.

	* gtk/gtkobject.[hc]: derive from GObject. ported various functions
	over. prepare for ::destroy to be emitted multiple times.
	removed reference tracer magic. chain into GObjectClass.shutdown()
	to emit ::destroy signal.

	* gtk/gtksignal.c: removed assumptions about GTK_TYPE_OBJECT being
	fundamental.

	* gtk/gtkmain.c: removed gtk_object_post_arg_parsing_init()
	cludge.

	* gtk/gtksocket.c:
	* gtk/gtkplug.c:
	* gtk/gtklayout.c:
	* gtk/gtklabel.c:
	* gtk/gtkargcollector.c:
	* gtk/gtkarg.c: various fixups to work with GTK_TYPE_OBJECT
	not being a fundamental anymore, and to work with the new
	type system (nuked fundamental type varargs clutter).

	* gtk/*.c: install finalize handlers in the GObjectClass
	part of the class structure.
	changed direct GTK_OBJECT()->klass accesses to
	GTK_*_GET_CLASS().
	changed direct object_class->type accesses to GTK_CLASS_TYPE().

	* gtktypeutils.[hc]: use the reserved fundamental ids provided by
	GType. made most of the GTK_*() type macros and Gtk* typedefs
	simple wrappers around macros and types provided by GType.
	most notably, a significant portion of the old API vanished:
	GTK_TYPE_MAKE(),
	GTK_TYPE_SEQNO(),
	GTK_TYPE_FLAT_FIRST, GTK_TYPE_FLAT_LAST,
	GTK_TYPE_STRUCTURED_FIRST, GTK_TYPE_STRUCTURED_LAST,
	GTK_TYPE_ARGS,
	GTK_TYPE_CALLBACK,
	GTK_TYPE_C_CALLBACK,
	GTK_TYPE_FOREIGN,
	GtkTypeQuery,
	gtk_type_query(),
	gtk_type_set_varargs_type(),
	gtk_type_get_varargs_type(),
	gtk_type_check_object_cast(),
	gtk_type_check_class_cast(),
	gtk_type_describe_tree(),
	gtk_type_describe_heritage(),
	gtk_type_free(),
	gtk_type_children_types(),
	gtk_type_set_chunk_alloc(),
	gtk_type_register_enum(),
	gtk_type_register_flags(),
	gtk_type_parent_class().
	replacements, where available are described in ../docs/Changes-1.4.txt.
	implemented compatibility functions for the remaining API.

	* configure.in: depend on glib 1.3.1, use gobject module.
2000-05-12 15:25:50 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GTK Calendar Widget
* Copyright (C) 1998 Cesar Miquel, Shawn T. Amundson and Mattias Grönlund
*
* lib_date routines
* Copyright (c) 1995, 1996, 1997, 1998 by Steffen Beyer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include "gtkcalendar.h"
#include "gdk/gdkkeysyms.h"
/***************************************************************************/
/* The following date routines are taken from the lib_date package. Keep
* them seperate in case we want to update them if a newer lib_date comes
* out with fixes. */
typedef unsigned int N_int;
typedef unsigned long N_long;
typedef signed long Z_long;
typedef enum { false = FALSE , true = TRUE } boolean;
#define and && /* logical (boolean) operators: lower case */
#define or ||
static const N_int month_length[2][13] =
{
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
};
static const N_int days_in_months[2][14] =
{
{ 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
{ 0, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
};
static Z_long calc_days(N_int year, N_int mm, N_int dd);
static N_int day_of_week(N_int year, N_int mm, N_int dd);
static Z_long dates_difference(N_int year1, N_int mm1, N_int dd1,
N_int year2, N_int mm2, N_int dd2);
static N_int weeks_in_year(N_int year);
static boolean
leap(N_int year)
{
return((((year % 4) == 0) and ((year % 100) != 0)) or ((year % 400) == 0));
}
static N_int
day_of_week(N_int year, N_int mm, N_int dd)
{
Z_long days;
days = calc_days(year, mm, dd);
if (days > 0L)
{
days--;
days %= 7L;
days++;
}
return( (N_int) days );
}
static N_int weeks_in_year(N_int year)
{
return(52 + ((day_of_week(year,1,1)==4) or (day_of_week(year,12,31)==4)));
}
static boolean
check_date(N_int year, N_int mm, N_int dd)
{
if (year < 1) return(false);
if ((mm < 1) or (mm > 12)) return(false);
if ((dd < 1) or (dd > month_length[leap(year)][mm])) return(false);
return(true);
}
static N_int
week_number(N_int year, N_int mm, N_int dd)
{
N_int first;
first = day_of_week(year,1,1) - 1;
return( (N_int) ( (dates_difference(year,1,1, year,mm,dd) + first) / 7L ) +
(first < 4) );
}
static Z_long
year_to_days(N_int year)
{
return( year * 365L + (year / 4) - (year / 100) + (year / 400) );
}
static Z_long
calc_days(N_int year, N_int mm, N_int dd)
{
boolean lp;
if (year < 1) return(0L);
if ((mm < 1) or (mm > 12)) return(0L);
if ((dd < 1) or (dd > month_length[(lp = leap(year))][mm])) return(0L);
return( year_to_days(--year) + days_in_months[lp][mm] + dd );
}
static boolean
week_of_year(N_int *week, N_int *year, N_int mm, N_int dd)
{
if (check_date(*year,mm,dd))
{
*week = week_number(*year,mm,dd);
if (*week == 0)
*week = weeks_in_year(--(*year));
else if (*week > weeks_in_year(*year))
{
*week = 1;
(*year)++;
}
return(true);
}
return(false);
}
static Z_long
dates_difference(N_int year1, N_int mm1, N_int dd1,
N_int year2, N_int mm2, N_int dd2)
{
return( calc_days(year2, mm2, dd2) - calc_days(year1, mm1, dd1) );
}
/** END OF lib_date routines ************************************************/
#define CALENDAR_MARGIN 0
#define CALENDAR_YSEP 4
#define CALENDAR_XSEP 4
#define INNER_BORDER 4
#define DAY_XPAD 2
#define DAY_YPAD 2
#define DAY_XSEP 0 /* not really good for small calendar */
#define DAY_YSEP 0 /* not really good for small calendar */
/* Color usage */
#define HEADER_FG_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define HEADER_BG_COLOR(widget) (& (widget)->style->bg[GTK_WIDGET_STATE (widget)])
#define DAY_NAME_COLOR(widget) (& (widget)->style->bg[GTK_STATE_SELECTED])
#define NORMAL_DAY_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define SELECTION_FOCUS_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define SELECTION_NO_FOCUS_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
#define PREV_MONTH_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
#define NEXT_MONTH_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
#define MARKED_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define FOREGROUND_COLOR(widget) (& (widget)->style->fg[GTK_WIDGET_STATE (widget)])
#define BACKGROUND_COLOR(widget) (& (widget)->style->base[GTK_WIDGET_STATE (widget)])
#define HIGHLIGHT_BACK_COLOR(widget) (& (widget)->style->mid[GTK_WIDGET_STATE (widget)])
#define HEADER_FONT(widget) ((widget)->style->font)
#define LABEL_FONT(widget) ((widget)->style->font)
#define DAY_FONT(widget) ((widget)->style->font)
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
};
static gint gtk_calendar_signals[LAST_SIGNAL] = { 0 };
static GtkWidgetClass *parent_class = NULL;
typedef struct _GtkCalendarPrivateData GtkCalendarPrivateData;
struct _GtkCalendarPrivateData
{
GdkWindow *header_win;
GdkWindow *day_name_win;
GdkWindow *main_win;
GdkWindow *week_win;
GdkWindow *arrow_win[4];
guint header_h;
guint day_name_h;
guint main_h;
guint arrow_state[4];
guint arrow_width;
guint max_month_width;
guint max_year_width;
guint day_width;
guint week_width;
guint min_day_width;
guint max_day_char_width;
guint max_day_char_ascent;
guint max_day_char_descent;
guint max_label_char_ascent;
guint max_label_char_descent;
guint max_week_char_width;
guint freeze_count;
/* flags */
guint dirty_header : 1;
guint dirty_day_names : 1;
guint dirty_main : 1;
guint dirty_week : 1;
};
#define GTK_CALENDAR_PRIVATE_DATA(widget) (((GtkCalendarPrivateData*)(GTK_CALENDAR (widget)->private_data)))
typedef void (*GtkCalendarSignalDate) (GtkObject *object, guint arg1, guint arg2, guint arg3, gpointer data);
static void gtk_calendar_class_init (GtkCalendarClass *class);
static void gtk_calendar_init (GtkCalendar *calendar);
static void gtk_calendar_realize (GtkWidget *widget);
static void gtk_calendar_unrealize (GtkWidget *widget);
static void gtk_calendar_draw_focus (GtkWidget *widget);
static void gtk_calendar_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint gtk_calendar_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event);
static void gtk_calendar_main_button (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_calendar_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gint gtk_calendar_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_calendar_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gint gtk_calendar_key_press (GtkWidget *widget,
GdkEventKey *event);
static gint gtk_calendar_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_calendar_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_calendar_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static void gtk_calendar_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_calendar_paint_header (GtkWidget *widget);
static void gtk_calendar_paint_day_names (GtkWidget *widget);
static void gtk_calendar_paint_week_numbers (GtkWidget *widget);
static void gtk_calendar_paint_main (GtkWidget *widget);
static void gtk_calendar_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_calendar_paint_arrow (GtkWidget *widget,
guint arrow);
static void gtk_calendar_paint_day_num (GtkWidget *widget,
gint day);
static void gtk_calendar_paint_day (GtkWidget *widget,
gint row,
gint col);
static void gtk_calendar_draw (GtkWidget *widget,
GdkRectangle *area);
static void gtk_calendar_compute_days (GtkCalendar *calendar);
static gint left_x_for_column (GtkCalendar *calendar,
gint column);
static gint top_y_for_row (GtkCalendar *calendar,
gint row);
static char *default_abbreviated_dayname[7];
static char *default_monthname[12];
GtkType
gtk_calendar_get_type (void)
{
static GtkType calendar_type = 0;
if (!calendar_type)
{
static const GTypeInfo calendar_info =
{
sizeof (GtkCalendarClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_calendar_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkCalendar),
16, /* n_preallocs */
(GInstanceInitFunc) gtk_calendar_init,
};
calendar_type = g_type_register_static (GTK_TYPE_WIDGET, "GtkCalendar", &calendar_info);
}
return calendar_type;
}
static void
gtk_calendar_class_init (GtkCalendarClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (GTK_TYPE_WIDGET);
widget_class->realize = gtk_calendar_realize;
widget_class->unrealize = gtk_calendar_unrealize;
widget_class->expose_event = gtk_calendar_expose;
widget_class->draw = gtk_calendar_draw;
widget_class->draw_focus = gtk_calendar_draw_focus;
widget_class->size_request = gtk_calendar_size_request;
widget_class->size_allocate = gtk_calendar_size_allocate;
widget_class->button_press_event = gtk_calendar_button_press;
widget_class->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->focus_in_event = gtk_calendar_focus_in;
widget_class->focus_out_event = gtk_calendar_focus_out;
widget_class->style_set = gtk_calendar_style_set;
widget_class->state_changed = gtk_calendar_state_changed;
gtk_calendar_signals[MONTH_CHANGED_SIGNAL] =
gtk_signal_new ("month_changed",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, month_changed),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_calendar_signals[DAY_SELECTED_SIGNAL] =
gtk_signal_new ("day_selected",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, day_selected),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_calendar_signals[DAY_SELECTED_DOUBLE_CLICK_SIGNAL] =
gtk_signal_new ("day_selected_double_click",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, day_selected_double_click),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_calendar_signals[PREV_MONTH_SIGNAL] =
gtk_signal_new ("prev_month",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, prev_month),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_calendar_signals[NEXT_MONTH_SIGNAL] =
gtk_signal_new ("next_month",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, next_month),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_calendar_signals[PREV_YEAR_SIGNAL] =
gtk_signal_new ("prev_year",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, prev_year),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_calendar_signals[NEXT_YEAR_SIGNAL] =
gtk_signal_new ("next_year",
GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkCalendarClass, next_year),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, gtk_calendar_signals, LAST_SIGNAL);
class->month_changed = NULL;
class->day_selected = NULL;
class->day_selected_double_click = NULL;
class->prev_month = NULL;
class->next_month = NULL;
class->prev_year = NULL;
class->next_year = NULL;
}
static void
gtk_calendar_init (GtkCalendar *calendar)
{
time_t secs;
struct tm *tm;
gint i;
char buffer[255];
time_t tmp_time;
GtkWidget *widget;
GtkCalendarPrivateData *private_data;
widget = GTK_WIDGET (calendar);
GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
calendar->private_data = (gpointer) malloc (sizeof (GtkCalendarPrivateData));
private_data = GTK_CALENDAR_PRIVATE_DATA (calendar);
if (!default_abbreviated_dayname[0])
for (i=0; i<7; i++)
{
tmp_time= (i+3)*86400;
strftime ( buffer, sizeof (buffer), "%a", gmtime (&tmp_time));
default_abbreviated_dayname[i] = g_strdup (buffer);
}
if (!default_monthname[0])
for (i=0; i<12; i++)
{
tmp_time=i*2764800;
strftime ( buffer, sizeof (buffer), "%B", gmtime (&tmp_time));
default_monthname[i] = g_strdup (buffer);
}
/* Set defaults */
secs = time (NULL);
tm = localtime (&secs);
calendar->month = tm->tm_mon;
calendar->year = 1900 + tm->tm_year;
for (i=0;i<31;i++)
calendar->marked_date[i] = FALSE;
calendar->num_marked_dates = 0;
calendar->selected_day = 1;
calendar->display_flags = ( GTK_CALENDAR_SHOW_HEADING |
GTK_CALENDAR_SHOW_DAY_NAMES );
calendar->highlight_row = -1;
calendar->highlight_col = -1;
calendar->focus_row = -1;
calendar->focus_col = -1;
calendar->xor_gc = NULL;
private_data->max_year_width = 0;
private_data->max_month_width = 0;
private_data->max_day_char_width = 0;
private_data->max_week_char_width = 0;
private_data->max_day_char_ascent = 0;
private_data->max_day_char_descent = 0;
private_data->max_label_char_ascent = 0;
private_data->max_label_char_descent = 0;
private_data->arrow_width = 10;
private_data->freeze_count = 0;
private_data->dirty_header = 0;
private_data->dirty_day_names = 0;
private_data->dirty_week = 0;
private_data->dirty_main = 0;
}
GtkWidget*
gtk_calendar_new (void)
{
return GTK_WIDGET (gtk_type_new (GTK_TYPE_CALENDAR));
}
/* column_from_x: returns the column 0-6 that the
* x pixel of the xwindow is in */
static gint
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 = left_x_for_column (calendar, c);
x_right = x_left + GTK_CALENDAR_PRIVATE_DATA (calendar)->day_width;
if (event_x >= x_left && event_x < x_right)
{
column = c;
break;
}
}
return column;
}
static gint
row_height (GtkCalendar *calendar)
{
return (GTK_CALENDAR_PRIVATE_DATA (calendar)->main_h - CALENDAR_MARGIN
- ((calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
? CALENDAR_YSEP : CALENDAR_MARGIN)) / 6;
}
/* row_from_y: returns the row 0-5 that the
* y pixel of the xwindow is in */
static gint
row_from_y (GtkCalendar *calendar,
gint event_y)
{
gint r, row;
gint height;
gint y_top, y_bottom;
height = row_height (calendar);
row = -1;
for (r = 0; r < 6; r++)
{
y_top = 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;
}
/* left_x_for_column: returns the x coordinate
* for the left of the column */
static gint
left_x_for_column (GtkCalendar *calendar,
gint column)
{
gint width;
gint x_left;
width = GTK_CALENDAR_PRIVATE_DATA (calendar)->day_width;
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
x_left = DAY_XSEP + (width + DAY_XSEP) * column;
else
x_left = CALENDAR_MARGIN + (width + DAY_XSEP) * column;
return x_left;
}
/* top_y_for_row: returns the y coordinate
* for the top of the row */
static gint
top_y_for_row (GtkCalendar *calendar,
gint row)
{
return (GTK_CALENDAR_PRIVATE_DATA (calendar)->main_h
- (CALENDAR_MARGIN + (6 - row)
* row_height (calendar)));
}
/* This function should be done by the toolkit, but we don't like the
* GTK arrows because they don't look good on this widget */
static void
draw_arrow_right (GdkWindow *window,
GdkGC *gc,
gint x,
gint y,
gint size)
{
gint i;
for (i = 0; i <= size / 2; i++)
{
gdk_draw_line (window, gc,
x + i,
y + i,
x + i,
y + size - i);
}
}
/* This function should be done by the toolkit, but we don't like the
* GTK arrows because they don't look good on this widget */
static void
draw_arrow_left (GdkWindow *window,
GdkGC *gc,
gint x,
gint y,
gint size)
{
gint i;
for (i = 0; i <= size / 2; i++)
{
gdk_draw_line (window, gc,
x + size/2 - i,
y + i,
x + size/2 - i,
y + size - i);
}
}
static void
gtk_calendar_set_month_prev (GtkCalendar *calendar)
{
gint month_len;
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
return;
if (calendar->month == 0)
{
calendar->month = 11;
calendar->year--;
}
else
calendar->month--;
month_len = month_length[leap (calendar->year)][calendar->month + 1];
gtk_calendar_freeze (calendar);
gtk_calendar_compute_days (calendar);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[PREV_MONTH_SIGNAL]);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[MONTH_CHANGED_SIGNAL]);
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
{
if (calendar->selected_day < 0)
calendar->selected_day = calendar->selected_day + 1 + month_length[leap (calendar->year)][calendar->month + 1];
gtk_calendar_select_day (calendar, calendar->selected_day);
}
gtk_calendar_paint (GTK_WIDGET (calendar), NULL);
gtk_calendar_thaw (calendar);
}
static void
gtk_calendar_set_month_next (GtkCalendar *calendar)
{
gint month_len;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_WIDGET (calendar));
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
return;
if (calendar->month == 11)
{
calendar->month = 0;
calendar->year++;
}
else
calendar->month++;
gtk_calendar_freeze (calendar);
gtk_calendar_compute_days (calendar);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[NEXT_MONTH_SIGNAL]);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[MONTH_CHANGED_SIGNAL]);
month_len = month_length[leap (calendar->year)][calendar->month + 1];
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, calendar->selected_day);
gtk_calendar_paint (GTK_WIDGET(calendar), NULL);
gtk_calendar_thaw (calendar);
}
static void
gtk_calendar_set_year_prev (GtkCalendar *calendar)
{
gint month_len;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_WIDGET (calendar));
calendar->year--;
gtk_calendar_freeze (calendar);
gtk_calendar_compute_days (calendar);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[PREV_YEAR_SIGNAL]);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[MONTH_CHANGED_SIGNAL]);
month_len = month_length[leap (calendar->year)][calendar->month + 1];
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, calendar->selected_day);
gtk_calendar_paint (GTK_WIDGET (calendar), NULL);
gtk_calendar_thaw (calendar);
}
static void
gtk_calendar_set_year_next (GtkCalendar *calendar)
{
gint month_len;
GtkWidget *widget;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_WIDGET (calendar));
widget = GTK_WIDGET (calendar);
gtk_calendar_freeze (calendar);
calendar->year++;
gtk_calendar_compute_days (calendar);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[NEXT_YEAR_SIGNAL]);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[MONTH_CHANGED_SIGNAL]);
month_len = month_length[leap (calendar->year)][calendar->month + 1];
if (month_len < calendar->selected_day)
{
calendar->selected_day = 0;
gtk_calendar_select_day (calendar, month_len);
}
else
gtk_calendar_select_day (calendar, calendar->selected_day);
gtk_calendar_paint (GTK_WIDGET (calendar), NULL);
gtk_calendar_thaw (calendar);
}
static void
gtk_calendar_main_button (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar;
gint x, y;
gint row, col;
gint day_month;
gint old_focus_row, old_focus_col;
calendar = GTK_CALENDAR (widget);
x = (gint) (event->x);
y = (gint) (event->y);
row = row_from_y (calendar, y);
col = column_from_x (calendar, x);
/* If row or column isn't found, just return. */
if (row == -1 || col == -1)
return;
day_month = calendar->day_month[row][col];
if (day_month == MONTH_CURRENT)
{
if (event->type == GDK_2BUTTON_PRESS)
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[DAY_SELECTED_DOUBLE_CLICK_SIGNAL]);
else
{
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
old_focus_row = calendar->focus_row;
old_focus_col = calendar->focus_col;
calendar->focus_row = row;
calendar->focus_col = col;
gtk_calendar_paint_day (widget, old_focus_row, old_focus_col);
gtk_calendar_select_day (calendar, calendar->day[row][col]);
}
}
else if (day_month == MONTH_PREV)
gtk_calendar_set_month_prev (calendar);
else if (day_month == MONTH_NEXT)
gtk_calendar_set_month_next (calendar);
}
static void
gtk_calendar_realize_arrows (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
GdkWindowAttr attributes;
gint attributes_mask;
gint i;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
/* Arrow windows ------------------------------------- */
if (! (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING))
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = (gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
| GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.y = 3;
attributes.width = private_data->arrow_width;
attributes.height = private_data->header_h - 7;
for (i = 0; i < 4; i++)
{
switch (i)
{
case ARROW_MONTH_LEFT:
attributes.x = 3;
break;
case ARROW_MONTH_RIGHT:
attributes.x = (private_data->arrow_width
+ private_data->max_month_width);
break;
case ARROW_YEAR_LEFT:
attributes.x = (widget->allocation.width - 4
- (3 + 2*private_data->arrow_width
+ private_data->max_year_width));
break;
case ARROW_YEAR_RIGHT:
attributes.x = (widget->allocation.width - 4
- 3 - private_data->arrow_width);
break;
}
private_data->arrow_win[i] = gdk_window_new (private_data->header_win,
&attributes,
attributes_mask);
private_data->arrow_state[i] = GTK_STATE_NORMAL;
gdk_window_set_background (private_data->arrow_win[i],
HEADER_BG_COLOR (GTK_WIDGET (calendar)));
gdk_window_show (private_data->arrow_win[i]);
gdk_window_set_user_data (private_data->arrow_win[i], widget);
}
}
else
{
for (i = 0; i < 4; i++)
private_data->arrow_win[i] = NULL;
}
}
static void
gtk_calendar_realize_header (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
/* Header window ------------------------------------- */
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = 2;
attributes.y = 2;
attributes.width = widget->allocation.width - 4;
attributes.height = private_data->header_h;
private_data->header_win = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_background (private_data->header_win,
HEADER_BG_COLOR (GTK_WIDGET (calendar)));
gdk_window_show (private_data->header_win);
gdk_window_set_user_data (private_data->header_win, widget);
}
else
{
private_data->header_win = NULL;
}
gtk_calendar_realize_arrows (widget);
}
static void
gtk_calendar_realize_day_names (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
/* Day names window --------------------------------- */
if ( calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = (widget->style->klass->xthickness + INNER_BORDER);
attributes.y = private_data->header_h + (widget->style->klass->ythickness
+ INNER_BORDER);
attributes.width = (widget->allocation.width
- (widget->style->klass->xthickness + INNER_BORDER)
* 2);
attributes.height = private_data->day_name_h;
private_data->day_name_win = gdk_window_new (widget->window,
&attributes,
attributes_mask);
gdk_window_set_background (private_data->day_name_win,
BACKGROUND_COLOR ( GTK_WIDGET ( calendar)));
gdk_window_show (private_data->day_name_win);
gdk_window_set_user_data (private_data->day_name_win, widget);
}
else
{
private_data->day_name_win = NULL;
}
}
static void
gtk_calendar_realize_week_numbers (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
/* Week number window -------------------------------- */
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.x = + (widget->style->klass->xthickness + INNER_BORDER);
attributes.y = (private_data->header_h + private_data->day_name_h
+ (widget->style->klass->ythickness + INNER_BORDER));
attributes.width = private_data->week_width;
attributes.height = private_data->main_h;
private_data->week_win = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_background (private_data->week_win,
BACKGROUND_COLOR (GTK_WIDGET (calendar)));
gdk_window_show (private_data->week_win);
gdk_window_set_user_data (private_data->week_win, widget);
}
else
{
private_data->week_win = NULL;
}
}
static void
gtk_calendar_realize (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
GdkWindowAttr attributes;
gint attributes_mask;
GdkGCValues values;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
gtk_calendar_compute_days (calendar);
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.event_mask = (gtk_widget_get_events (widget)
| GDK_EXPOSURE_MASK |GDK_KEY_PRESS_MASK);
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (widget->parent->window,
&attributes, attributes_mask);
widget->style = gtk_style_attach (widget->style, widget->window);
/* Header window ------------------------------------- */
gtk_calendar_realize_header (widget);
/* Day names window --------------------------------- */
gtk_calendar_realize_day_names (widget);
/* Week number window -------------------------------- */
gtk_calendar_realize_week_numbers (widget);
/* Main Window -------------------------------------- */
attributes.event_mask = (gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
| GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK);
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
attributes.x = private_data->week_width;
else
attributes.x = 0;
attributes.x += (widget->style->klass->xthickness + INNER_BORDER);
attributes.y = (private_data->header_h + private_data->day_name_h
+ (widget->style->klass->ythickness + INNER_BORDER));
attributes.width = (widget->allocation.width - attributes.x
- (widget->style->klass->xthickness + INNER_BORDER));
attributes.height = private_data->main_h;
private_data->main_win = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_background (private_data->main_win,
BACKGROUND_COLOR ( GTK_WIDGET ( calendar)));
gdk_window_show (private_data->main_win);
gdk_window_set_user_data (private_data->main_win, widget);
gdk_window_set_background (widget->window, BACKGROUND_COLOR (widget));
gdk_window_show (widget->window);
gdk_window_set_user_data (widget->window, widget);
/* Set widgets gc */
calendar->gc = gdk_gc_new (widget->window);
values.foreground = widget->style->white;
values.function = GDK_XOR;
calendar->xor_gc = gdk_gc_new_with_values (widget->window,
&values,
GDK_GC_FOREGROUND |
GDK_GC_FUNCTION);
}
static void
gtk_calendar_unrealize (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint i;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (private_data->header_win)
{
for (i = 0; i < 4; i++)
{
if (private_data->arrow_win[i])
{
gdk_window_set_user_data (private_data->arrow_win[i], NULL);
gdk_window_destroy (private_data->arrow_win[i]);
private_data->arrow_win[i] = NULL;
}
}
gdk_window_set_user_data (private_data->header_win, NULL);
gdk_window_destroy (private_data->header_win);
private_data->header_win = NULL;
}
if (private_data->week_win)
{
gdk_window_set_user_data (private_data->week_win, NULL);
gdk_window_destroy (private_data->week_win);
private_data->week_win = NULL;
}
if (private_data->main_win)
{
gdk_window_set_user_data (private_data->main_win, NULL);
gdk_window_destroy (private_data->main_win);
private_data->main_win = NULL;
}
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_calendar_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint height;
gint i;
gchar buffer[255];
gint calendar_margin = CALENDAR_MARGIN;
gint header_width, main_width;
gint lbearing;
gint rbearing;
gint ascent;
gint descent;
gint width;
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
/*
* Calculate the requisition width for the widget.
*/
/* Header width */
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
private_data->max_month_width = 0;
for (i = 0; i < 12; i++)
{
private_data->max_month_width = MAX (private_data->max_month_width,
gdk_string_measure (HEADER_FONT (widget),
default_monthname[i]) + 8);
}
private_data->max_year_width = 0;
for (i=0; i<10; i++)
{
sprintf (buffer, "%d%d%d%d", i,i,i,i);
private_data->max_year_width = MAX (private_data->max_year_width,
gdk_string_measure (HEADER_FONT (widget),
buffer) + 8);
}
}
else
{
private_data->max_month_width = 0;
private_data->max_year_width = 0;
}
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
header_width = (private_data->max_month_width
+ private_data->max_year_width
+ 3 * 3);
else
header_width = (private_data->max_month_width
+ private_data->max_year_width
+ 4 * private_data->arrow_width + 3 * 3);
/* Mainwindow labels width */
private_data->max_day_char_width = 0;
for (i = 0; i < 9; i++)
{
sprintf (buffer, "%d%d", i, i);
private_data->min_day_width = MAX (private_data->max_day_char_width,
gdk_string_measure (DAY_FONT (widget),
buffer));
}
/* We add one to max_day_char_width to be able to make the marked day "bold" */
private_data->max_day_char_width = private_data->min_day_width / 2 +1;
if (calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
for (i = 0; i < 7; i++)
{
gdk_text_extents (LABEL_FONT (widget),
default_abbreviated_dayname[i],
strlen(default_abbreviated_dayname[i]),
&lbearing,
&rbearing,
&width,
&ascent,
&descent);
private_data->min_day_width = MAX (private_data->min_day_width, width);
private_data->max_label_char_ascent = MAX (private_data->max_label_char_ascent,
ascent);
private_data->max_label_char_descent = MAX (private_data->max_label_char_descent,
descent);
}
private_data->max_week_char_width = 0;
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
for (i = 0; i < 9; i++)
{
sprintf (buffer, "%d%d", i, i);
private_data->max_week_char_width = MAX (private_data->max_week_char_width,
gdk_string_measure (LABEL_FONT (widget), buffer) / 2);
}
main_width = (7 * (private_data->min_day_width + DAY_XPAD * 2) + (DAY_XSEP * 6) + CALENDAR_MARGIN * 2
+ (private_data->max_week_char_width
? private_data->max_week_char_width * 2 + DAY_XPAD * 2 + CALENDAR_XSEP * 2
: 0));
requisition->width = MAX (header_width+4, main_width + (widget->style->klass->xthickness + INNER_BORDER) *2);
/*
* Calculate the requisition height for the widget.
*/
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
private_data->header_h = (HEADER_FONT (widget)->ascent
+ HEADER_FONT (widget)->descent
+ CALENDAR_YSEP * 2);
}
else
{
private_data->header_h = 0;
}
if (calendar->display_flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
private_data->day_name_h = (private_data->max_label_char_ascent
+ private_data->max_label_char_descent
+ 2 * DAY_YPAD + calendar_margin);
calendar_margin = CALENDAR_YSEP;
}
else
{
private_data->day_name_h = 0;
}
gdk_text_extents (DAY_FONT (widget),
"0123456789",
10,
&lbearing,
&rbearing,
&width,
&private_data->max_day_char_ascent,
&private_data->max_day_char_descent);
private_data->main_h = (CALENDAR_MARGIN + calendar_margin
+ 6 * (private_data->max_day_char_ascent
+ private_data->max_day_char_descent
+ DAY_YPAD * 2)
+ DAY_YSEP * 5);
/*
* If we display weeknumbers we need some extra space
*/
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
private_data->main_h = MAX (private_data->main_h,
(CALENDAR_MARGIN + calendar_margin
+ 6 * (private_data->max_day_char_ascent
+ private_data->max_day_char_descent
+ DAY_YPAD * 2)
+ DAY_YSEP * 5));
}
height = (private_data->header_h + private_data->day_name_h
+ private_data->main_h);
requisition->height = height + (widget->style->klass->ythickness + INNER_BORDER) * 2;
}
static void
gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
private_data->day_width = (private_data->min_day_width
* ((allocation->width - (widget->style->klass->xthickness + INNER_BORDER) * 2
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 7) - CALENDAR_XSEP * 2))
/ (7 * private_data->min_day_width + private_data->max_week_char_width * 2));
private_data->week_width = ((allocation->width - (widget->style->klass->xthickness + INNER_BORDER) * 2
- (CALENDAR_MARGIN * 2) - (DAY_XSEP * 7) - CALENDAR_XSEP * 2 )
- private_data->day_width * 7 + CALENDAR_MARGIN + CALENDAR_XSEP);
}
else
{
private_data->day_width = (allocation->width
- (widget->style->klass->xthickness + INNER_BORDER) * 2
- (CALENDAR_MARGIN * 2)
- (DAY_XSEP * 7))/7;
private_data->week_width = 0;
}
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
if (private_data->header_win)
gdk_window_move_resize (private_data->header_win,
2, 2,
allocation->width-4, private_data->header_h);
if (private_data->arrow_win[ARROW_MONTH_LEFT])
gdk_window_move_resize (private_data->arrow_win[ARROW_MONTH_LEFT],
3, 3,
private_data->arrow_width,
private_data->header_h - 7);
if (private_data->arrow_win[ARROW_MONTH_RIGHT])
gdk_window_move_resize (private_data->arrow_win[ARROW_MONTH_RIGHT],
(private_data->arrow_width
+ private_data->max_month_width),
3,
private_data->arrow_width,
private_data->header_h - 7);
if (private_data->arrow_win[ARROW_YEAR_LEFT])
gdk_window_move_resize (private_data->arrow_win[ARROW_YEAR_LEFT],
(allocation->width - 4
- (3 + 2*private_data->arrow_width
+ private_data->max_year_width)),
3,
private_data->arrow_width,
private_data->header_h - 7);
if (private_data->arrow_win[ARROW_YEAR_RIGHT])
gdk_window_move_resize (private_data->arrow_win[ARROW_YEAR_RIGHT],
(allocation->width - 4
- 3 - private_data->arrow_width),
3,
private_data->arrow_width,
private_data->header_h - 7);
if (private_data->day_name_win)
gdk_window_move_resize (private_data->day_name_win,
widget->style->klass->xthickness + INNER_BORDER,
private_data->header_h + (widget->style->klass->ythickness + INNER_BORDER),
allocation->width - (widget->style->klass->xthickness + INNER_BORDER) * 2,
private_data->day_name_h);
if (private_data->week_win)
gdk_window_move_resize (private_data->week_win,
(widget->style->klass->xthickness + INNER_BORDER),
private_data->header_h + private_data->day_name_h
+ (widget->style->klass->ythickness + INNER_BORDER),
private_data->week_width,
private_data->main_h);
gdk_window_move_resize (private_data->main_win,
(private_data->week_width ? private_data->week_width + CALENDAR_XSEP :0)
+ (widget->style->klass->xthickness + INNER_BORDER),
private_data->header_h + private_data->day_name_h
+ (widget->style->klass->ythickness + INNER_BORDER),
allocation->width
- (private_data->week_width ? private_data->week_width + CALENDAR_XSEP :0)
- (widget->style->klass->xthickness + INNER_BORDER) * 2,
private_data->main_h);
}
}
static void
gtk_calendar_draw_focus (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint width, height;
gint x, y;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
x = 0;
y = 0;
gdk_window_get_size (widget->window, &width, &height);
gdk_window_clear (widget->window);
gdk_draw_rectangle (widget->window,
widget->style->base_gc[GTK_WIDGET_STATE (widget)],
FALSE, x + 2, y + 2, width - 5, height - 5);
gtk_draw_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_IN,
x, y, width, height);
}
}
static gint
gtk_calendar_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
if (event->window == private_data->main_win)
gtk_calendar_paint_main (widget);
if (event->window == private_data->header_win)
gtk_calendar_paint_header (widget);
if (event->window == private_data->day_name_win)
gtk_calendar_paint_day_names (widget);
if (event->window == private_data->week_win)
gtk_calendar_paint_week_numbers (widget);
if (event->window == widget->window)
gtk_widget_draw_focus (widget);
}
return FALSE;
}
static void
gtk_calendar_draw (GtkWidget *widget,
GdkRectangle *area)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
gtk_calendar_paint (widget, area);
}
static void
gtk_calendar_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
g_return_if_fail (widget != NULL);
g_return_if_fail (widget->window != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (private_data->main_win != NULL)
gtk_calendar_paint_main (widget);
if (private_data->header_win != NULL)
gtk_calendar_paint_header (widget);
if (private_data->day_name_win != NULL)
gtk_calendar_paint_day_names (widget);
if (private_data->week_win != NULL)
gtk_calendar_paint_week_numbers (widget);
gtk_widget_draw_focus (widget);
}
static void
gtk_calendar_paint_header (GtkWidget *widget)
{
GtkCalendar *calendar;
GdkGC *gc;
char buffer[255];
int y, y_arrow;
gint header_width, cal_height;
gint str_width;
gint max_month_width;
gint max_year_width;
GtkCalendarPrivateData *private_data;
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (private_data->freeze_count)
{
private_data->dirty_header = 1;
return;
}
private_data->dirty_header = 0;
gc = calendar->gc;
/* Clear window */
gdk_window_clear (private_data->header_win);
header_width = widget->allocation.width - 4;
cal_height = widget->allocation.height;
max_month_width = private_data->max_month_width;
max_year_width = private_data->max_year_width;
gdk_gc_set_foreground (gc, BACKGROUND_COLOR (GTK_WIDGET (calendar)));
gtk_draw_shadow (widget->style, private_data->header_win,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
0, 0, header_width, private_data->header_h);
/* Draw title */
y = private_data->header_h - (private_data->header_h
- HEADER_FONT (widget)->ascent
+ HEADER_FONT (widget)->descent) / 2;
y_arrow = (private_data->header_h - 9) / 2;
/* Draw year and its arrows */
sprintf (buffer, "%d", calendar->year);
str_width = gdk_string_measure (HEADER_FONT (widget), buffer);
gdk_gc_set_foreground (gc, HEADER_FG_COLOR (GTK_WIDGET (calendar)));
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
gdk_draw_string (private_data->header_win, HEADER_FONT (widget), gc,
header_width - (3 + max_year_width
- (max_year_width - str_width)/2),
y, buffer);
else
gdk_draw_string (private_data->header_win, HEADER_FONT (widget), gc,
header_width - (3 + private_data->arrow_width + max_year_width
- (max_year_width - str_width)/2),
y, buffer);
/* Draw month */
sprintf (buffer, "%s", default_monthname[calendar->month]);
str_width = gdk_string_measure (HEADER_FONT (widget), buffer);
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
gdk_draw_string (private_data->header_win, HEADER_FONT (widget), gc,
3 + (max_month_width - str_width) / 2,
y, buffer);
else
gdk_draw_string (private_data->header_win, HEADER_FONT (widget), gc,
3 + private_data->arrow_width + (max_month_width - str_width)/2,
y, buffer);
y += CALENDAR_YSEP + HEADER_FONT (widget)->descent;
gdk_gc_set_foreground (gc, BACKGROUND_COLOR (GTK_WIDGET (calendar)));
gtk_calendar_paint_arrow (widget, ARROW_MONTH_LEFT);
gtk_calendar_paint_arrow (widget, ARROW_MONTH_RIGHT);
gtk_calendar_paint_arrow (widget, ARROW_YEAR_LEFT);
gtk_calendar_paint_arrow (widget, ARROW_YEAR_RIGHT);
}
static void
gtk_calendar_paint_day_names (GtkWidget *widget)
{
GtkCalendar *calendar;
GdkGC *gc;
char buffer[255];
int day,i;
int day_width, cal_width;
gint cal_height;
int day_wid_sep;
int str_width;
GtkCalendarPrivateData *private_data;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
gc = calendar->gc;
/*
* Handle freeze/thaw functionality
*/
if (private_data->freeze_count)
{
private_data->dirty_day_names = 1;
return;
}
private_data->dirty_day_names = 0;
/*
* Clear the window
*/
gdk_window_clear (private_data->day_name_win);
day_width = private_data->day_width;
cal_width = widget->allocation.width;
cal_height = widget->allocation.height;
day_wid_sep = day_width + DAY_XSEP;
/*
* Draw rectangles as inverted background for the labels.
*/
gdk_gc_set_foreground (gc, &widget->style->bg[GTK_STATE_SELECTED]);
gdk_draw_rectangle (private_data->day_name_win, gc, TRUE,
CALENDAR_MARGIN, CALENDAR_MARGIN,
cal_width-CALENDAR_MARGIN * 2,
private_data->day_name_h - CALENDAR_MARGIN);
if (calendar->display_flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
gdk_draw_rectangle (private_data->day_name_win, gc, TRUE,
CALENDAR_MARGIN,
private_data->day_name_h - CALENDAR_YSEP,
private_data->week_width - CALENDAR_YSEP - CALENDAR_MARGIN,
CALENDAR_YSEP);
/*
* Write the labels
*/
gdk_gc_set_foreground (gc, &widget->style->fg[GTK_STATE_SELECTED]);
for (i = 0; i < 7; i++)
{
day=i;
if (calendar->display_flags & GTK_CALENDAR_WEEK_START_MONDAY)
day= (day+1)%7;
sprintf (buffer, "%s", default_abbreviated_dayname[day]);
str_width = gdk_string_measure (LABEL_FONT (widget), buffer);
gdk_draw_string (private_data->day_name_win, LABEL_FONT (widget),
gc,
((private_data->week_width ? CALENDAR_XSEP : CALENDAR_MARGIN)
+ day_wid_sep * i
+ private_data->week_width
+ (day_width - str_width)/2),
CALENDAR_MARGIN + DAY_YPAD
+ private_data->max_label_char_ascent, buffer);
}
}
static void
gtk_calendar_paint_week_numbers (GtkWidget *widget)
{
GtkCalendar *calendar;
GdkGC *gc;
gint row, week = 0, year;
gint x_loc;
char buffer[3];
gint y_baseline, day_height;
GtkCalendarPrivateData *private_data;
g_return_if_fail (widget != NULL);
g_return_if_fail (widget->window != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
gc = calendar->gc;
/*
* Handle freeze/thaw functionality
*/
if (private_data->freeze_count)
{
private_data->dirty_week = 1;
return;
}
private_data->dirty_week = 0;
/*
* Clear the window
*/
gdk_window_clear (private_data->week_win);
/*
* Draw a rectangle as inverted background for the labels.
*/
gdk_gc_set_foreground (gc, &widget->style->bg[GTK_STATE_SELECTED]);
if (private_data->day_name_win)
gdk_draw_rectangle (private_data->week_win, gc, TRUE,
CALENDAR_MARGIN,
0,
private_data->week_width - CALENDAR_MARGIN - CALENDAR_XSEP,
private_data->main_h - CALENDAR_MARGIN);
else
gdk_draw_rectangle (private_data->week_win, gc, TRUE,
CALENDAR_MARGIN,
CALENDAR_MARGIN,
private_data->week_width - CALENDAR_MARGIN - CALENDAR_XSEP,
private_data->main_h - 2 * CALENDAR_MARGIN);
/*
* Write the labels
*/
gdk_gc_set_foreground (gc, &widget->style->fg[GTK_STATE_SELECTED]);
day_height = row_height (calendar);
for (row = 0; row < 6; row++)
{
year = calendar->year;
if (calendar->day[row][6] < 15 && row > 3 && calendar->month == 11)
year++;
y_baseline = (top_y_for_row (calendar, row)
+ (day_height + LABEL_FONT (widget)->ascent
- LABEL_FONT (widget)->descent)/2);
g_return_if_fail (week_of_year (&week, &year,
((calendar->day[row][6] < 15 && row > 3 ? 1 : 0)
+ calendar->month) % 12 + 1, calendar->day[row][6]));
x_loc= (private_data->week_width - (private_data->week_width - CALENDAR_XSEP
- DAY_XPAD * 2 - CALENDAR_MARGIN ) / 2
- private_data->max_week_char_width
- CALENDAR_XSEP - DAY_XPAD);
if (week > 9)
{
sprintf (buffer, "%d", week/10);
gdk_draw_string (private_data->week_win, LABEL_FONT (widget), gc,
x_loc, y_baseline , buffer);
}
sprintf (buffer, "%d", week%10);
gdk_draw_string (private_data->week_win, LABEL_FONT (widget), gc,
x_loc + private_data->max_week_char_width, y_baseline , buffer);
}
}
static void
gtk_calendar_paint_day_num (GtkWidget *widget,
gint day)
{
GtkCalendar *calendar;
gint r, c, row, col;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
row = -1;
col = -1;
for (r = 0; r < 6; r++)
for (c = 0; c < 7; c++)
if (calendar->day_month[r][c] == MONTH_CURRENT &&
calendar->day[r][c] == day)
{
row = r;
col = c;
}
g_return_if_fail (row != -1);
g_return_if_fail (col != -1);
gtk_calendar_paint_day (widget, row, col);
}
static void
gtk_calendar_paint_day (GtkWidget *widget,
gint row,
gint col)
{
GtkCalendar *calendar;
GdkGC *gc;
gchar buffer[255];
gint day;
gint day_height;
gint x_left;
gint x_loc;
gint y_top;
gint y_baseline;
gint day_xspace;
GtkCalendarPrivateData *private_data;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
g_return_if_fail (row < 6);
g_return_if_fail (col < 7);
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
/*
* Handle freeze/thaw functionality
*/
if (private_data->freeze_count)
{
private_data->dirty_main = 1;
return;
}
day_height = row_height (calendar);
day_xspace = private_data->day_width - private_data->max_day_char_width*2;
day = calendar->day[row][col];
x_left = left_x_for_column (calendar, col);
x_loc = x_left + private_data->day_width / 2 + private_data->max_day_char_width;
y_top = top_y_for_row (calendar, row);
y_baseline = y_top + (day_height + private_data->max_day_char_ascent)/2;
gdk_window_clear_area (private_data->main_win, x_left, y_top,
private_data->day_width, day_height);
gc = calendar->gc;
if (calendar->day_month[row][col] == MONTH_PREV)
{
gdk_gc_set_foreground (gc, PREV_MONTH_COLOR (GTK_WIDGET (calendar)));
}
else if (calendar->day_month[row][col] == MONTH_NEXT)
{
gdk_gc_set_foreground (gc, NEXT_MONTH_COLOR (GTK_WIDGET (calendar)));
}
else
{
/*
if (calendar->highlight_row == row && calendar->highlight_col == col)
{
gdk_gc_set_foreground (gc, HIGHLIGHT_BACK_COLOR (GTK_WIDGET (calendar)));
gdk_draw_rectangle (private_data->main_win, gc, TRUE, x_left, y_top,
private_data->day_width, day_height);
}
*/
if (calendar->selected_day == day)
{
gdk_gc_set_foreground (gc, & (GTK_WIDGET (calendar)->style->bg[GTK_STATE_SELECTED]));
gdk_draw_rectangle (private_data->main_win, gc, TRUE, x_left, y_top,
private_data->day_width, day_height);
}
if (calendar->marked_date[day-1])
gdk_gc_set_foreground (gc, MARKED_COLOR (GTK_WIDGET (calendar)));
else
gdk_gc_set_foreground (gc, NORMAL_DAY_COLOR (GTK_WIDGET (calendar)));
if (calendar->selected_day == day)
gdk_gc_set_foreground (gc, & (GTK_WIDGET (calendar)->style->fg[GTK_STATE_SELECTED]));
else
gdk_gc_set_foreground (gc, & (GTK_WIDGET (calendar)->style->fg[GTK_WIDGET_STATE (calendar)]));
}
sprintf (buffer, "%d", day);
x_loc -= gdk_string_measure (DAY_FONT (widget), buffer);
sprintf (buffer, "%d", day);
gdk_draw_string (private_data->main_win,
DAY_FONT (widget), gc,
x_loc, y_baseline, buffer);
if (calendar->marked_date[day-1]
&& calendar->day_month[row][col] == MONTH_CURRENT)
gdk_draw_string (private_data->main_win,
DAY_FONT (widget), gc,
x_loc-1, y_baseline, buffer);
if (GTK_WIDGET_HAS_FOCUS (calendar)
&& calendar->focus_row == row && calendar->focus_col == col)
{
gdk_draw_rectangle (private_data->main_win, calendar->xor_gc,
FALSE, x_left, y_top,
private_data->day_width-1, day_height-1);
}
}
static void
gtk_calendar_paint_main (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint row, col;
g_return_if_fail (widget != NULL);
g_return_if_fail (widget->window != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (private_data->freeze_count)
{
private_data->dirty_main = 1;
return;
}
private_data->dirty_main = 0;
gdk_window_clear (private_data->main_win);
/* gtk_calendar_compute_days (calendar); */ /* REMOVE later */
for (col = 0; col < 7; col++)
for (row = 0; row < 6; row++)
gtk_calendar_paint_day (widget, row, col);
}
static void
gtk_calendar_compute_days (GtkCalendar *calendar)
{
gint month;
gint year;
gint ndays_in_month;
gint ndays_in_prev_month;
gint first_day;
gint row;
gint col;
gint day;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
year = calendar->year;
month = calendar->month + 1;
ndays_in_month = month_length[leap (year)][month];
first_day = day_of_week (year, month, 1);
if (calendar->display_flags & GTK_CALENDAR_WEEK_START_MONDAY)
first_day--;
else
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)][12];
day = ndays_in_prev_month - first_day + 1;
row = 0;
if (first_day > 0)
{
for (col = 0; col < first_day; col++)
{
calendar->day[row][col] = day;
calendar->day_month[row][col] = MONTH_PREV;
day++;
}
}
/* Compute days of current month */
col = first_day;
for (day = 1; day <= ndays_in_month; day++)
{
calendar->day[row][col] = day;
calendar->day_month[row][col] = MONTH_CURRENT;
col++;
if (col == 7)
{
row++;
col = 0;
}
}
/* Compute days of next month */
day = 1;
for (; row <= 5; row++)
{
for (; col <= 6; col++)
{
calendar->day[row][col] = day;
calendar->day_month[row][col] = MONTH_NEXT;
day++;
}
col = 0;
}
}
/* ----------------------------------------------------------------------
NAME: gtk_calendar_display_options
DESCRIPTION: Set display options (whether to display the
heading and the month headings)
flags is can be an XOR of:
GTK_CALENDAR_SHOW_HEADING
GTK_CALENDAR_SHOW_DAY_NAMES
GTK_CALENDAR_NO_MONTH_CHANGE
GTK_CALENDAR_SHOW_WEEK_NUMBERS
GTK_CALENDAR_WEEK_START_MONDAY
---------------------------------------------------------------------- */
void
gtk_calendar_display_options (GtkCalendar *calendar,
GtkCalendarDisplayOptions flags)
{
GtkCalendarPrivateData *private_data;
gint resize = 0;
GtkWidget *widget;
gint i;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
widget = GTK_WIDGET (calendar);
private_data = GTK_CALENDAR_PRIVATE_DATA (calendar);
if (GTK_WIDGET_REALIZED (widget))
{
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_NO_MONTH_CHANGE)
{
resize ++;
if (! (flags & GTK_CALENDAR_NO_MONTH_CHANGE)
&& (private_data->header_win))
{
calendar->display_flags &= ~GTK_CALENDAR_NO_MONTH_CHANGE;
gtk_calendar_realize_arrows (widget);
}
else
{
for (i = 0; i < 4; i++)
{
if (private_data->arrow_win[i])
{
gdk_window_set_user_data (private_data->arrow_win[i],
NULL);
gdk_window_destroy (private_data->arrow_win[i]);
private_data->arrow_win[i] = NULL;
}
}
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_HEADING)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_HEADING)
{
calendar->display_flags |= GTK_CALENDAR_SHOW_HEADING;
gtk_calendar_realize_header (widget);
}
else
{
for (i = 0; i < 4; i++)
{
if (private_data->arrow_win[i])
{
gdk_window_set_user_data (private_data->arrow_win[i],
NULL);
gdk_window_destroy (private_data->arrow_win[i]);
private_data->arrow_win[i] = NULL;
}
}
gdk_window_set_user_data (private_data->header_win, NULL);
gdk_window_destroy (private_data->header_win);
private_data->header_win = NULL;
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_DAY_NAMES)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_DAY_NAMES)
{
calendar->display_flags |= GTK_CALENDAR_SHOW_DAY_NAMES;
gtk_calendar_realize_day_names (widget);
}
else
{
gdk_window_set_user_data (private_data->day_name_win, NULL);
gdk_window_destroy (private_data->day_name_win);
private_data->day_name_win = NULL;
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
resize++;
if (flags & GTK_CALENDAR_SHOW_WEEK_NUMBERS)
{
calendar->display_flags |= GTK_CALENDAR_SHOW_WEEK_NUMBERS;
gtk_calendar_realize_week_numbers (widget);
}
else
{
gdk_window_set_user_data (private_data->week_win, NULL);
gdk_window_destroy (private_data->week_win);
private_data->week_win = NULL;
}
}
if ((flags ^ calendar->display_flags) & GTK_CALENDAR_WEEK_START_MONDAY)
{
if (calendar->display_flags & GTK_CALENDAR_WEEK_START_MONDAY)
calendar->display_flags &= ~GTK_CALENDAR_WEEK_START_MONDAY;
else
calendar->display_flags |= GTK_CALENDAR_WEEK_START_MONDAY;
gtk_calendar_compute_days (calendar);
gtk_calendar_paint_main (GTK_WIDGET (calendar));
if (private_data->day_name_win)
gtk_calendar_paint_day_names (GTK_WIDGET (calendar));
}
calendar->display_flags = flags;
if (resize)
gtk_widget_queue_resize (GTK_WIDGET (calendar));
}
else
calendar->display_flags = flags;
}
gint
gtk_calendar_select_month (GtkCalendar *calendar,
guint month,
guint year)
{
g_return_val_if_fail (calendar != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
g_return_val_if_fail (month <= 11, FALSE);
calendar->month = month;
calendar->year = year;
gtk_calendar_compute_days (calendar);
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
gtk_calendar_paint (GTK_WIDGET (calendar), NULL);
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[MONTH_CHANGED_SIGNAL]);
return TRUE;
}
void
gtk_calendar_select_day (GtkCalendar *calendar,
guint day)
{
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
g_return_if_fail (day <= 31);
/* gtk_calendar_compute_days (calendar); */
/* Deselect the old day */
if (calendar->selected_day > 0)
{
gint selected_day;
selected_day = calendar->selected_day;
calendar->selected_day = 0;
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
gtk_calendar_paint_day_num (GTK_WIDGET (calendar), selected_day);
}
calendar->selected_day = day;
/* Deselect the new day */
if (day != 0)
{
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
gtk_calendar_paint_day_num (GTK_WIDGET (calendar), day);
}
gtk_signal_emit (GTK_OBJECT (calendar),
gtk_calendar_signals[DAY_SELECTED_SIGNAL]);
}
void
gtk_calendar_clear_marks (GtkCalendar *calendar)
{
guint day;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
for (day = 0; day < 31; day++)
{
calendar->marked_date[day] = FALSE;
}
calendar->num_marked_dates = 0;
if (GTK_WIDGET_DRAWABLE (calendar))
{
gtk_calendar_paint_main (GTK_WIDGET (calendar));
}
}
gint
gtk_calendar_mark_day (GtkCalendar *calendar,
guint day)
{
g_return_val_if_fail (calendar != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
if (day >= 1 && day <= 31 && calendar->marked_date[day-1] == FALSE)
{
calendar->marked_date[day - 1] = TRUE;
calendar->num_marked_dates++;
}
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
{
gtk_calendar_paint_main (GTK_WIDGET (calendar));
}
return TRUE;
}
gint
gtk_calendar_unmark_day (GtkCalendar *calendar,
guint day)
{
g_return_val_if_fail (calendar != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (calendar), FALSE);
if (day >= 1 && day <= 31 && calendar->marked_date[day-1] == TRUE)
{
calendar->marked_date[day - 1] = FALSE;
calendar->num_marked_dates--;
}
if (GTK_WIDGET_DRAWABLE (GTK_WIDGET (calendar)))
{
gtk_calendar_paint_main (GTK_WIDGET (calendar));
}
return TRUE;
}
void
gtk_calendar_get_date (GtkCalendar *calendar,
guint *year,
guint *month,
guint *day)
{
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
if (year)
*year = calendar->year;
if (month)
*month = calendar->month;
if (day)
*day = calendar->selected_day;
}
static gint
gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint x, y;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
x = (gint) (event->x);
y = (gint) (event->y);
if (event->window == private_data->main_win)
gtk_calendar_main_button (widget, event);
if (event->type != GDK_BUTTON_PRESS)
return FALSE; /* Double-clicks? Triple-clicks? No thanks! */
if (event->window == private_data->arrow_win[ARROW_MONTH_LEFT])
gtk_calendar_set_month_prev (calendar);
if (event->window == private_data->arrow_win[ARROW_MONTH_RIGHT])
gtk_calendar_set_month_next (calendar);
if (event->window == private_data->arrow_win[ARROW_YEAR_LEFT])
gtk_calendar_set_year_prev (calendar);
if (event->window == private_data->arrow_win[ARROW_YEAR_RIGHT])
gtk_calendar_set_year_next (calendar);
return FALSE;
}
static gint
gtk_calendar_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint event_x, event_y;
gint row, col;
gint old_row, old_col;
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
event_x = (gint) (event->x);
event_y = (gint) (event->y);
if (event->window == private_data->main_win)
{
row = row_from_y (calendar, event_y);
col = column_from_x (calendar, event_x);
if (row != calendar->highlight_row || calendar->highlight_col != col)
{
old_row = calendar->highlight_row;
old_col = calendar->highlight_col;
if (old_row > -1 && old_col > -1)
{
calendar->highlight_row = -1;
calendar->highlight_col = -1;
gtk_calendar_paint_day (widget, old_row, old_col);
}
calendar->highlight_row = row;
calendar->highlight_col = col;
if (row > -1 && col > -1)
gtk_calendar_paint_day (widget, row, col);
}
}
return TRUE;
}
static gint
gtk_calendar_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (event->window == private_data->arrow_win[ARROW_MONTH_LEFT])
{
private_data->arrow_state[ARROW_MONTH_LEFT] = GTK_STATE_PRELIGHT;
gtk_calendar_paint_arrow (widget, ARROW_MONTH_LEFT);
}
if (event->window == private_data->arrow_win[ARROW_MONTH_RIGHT])
{
private_data->arrow_state[ARROW_MONTH_RIGHT] = GTK_STATE_PRELIGHT;
gtk_calendar_paint_arrow (widget, ARROW_MONTH_RIGHT);
}
if (event->window == private_data->arrow_win[ARROW_YEAR_LEFT])
{
private_data->arrow_state[ARROW_YEAR_LEFT] = GTK_STATE_PRELIGHT;
gtk_calendar_paint_arrow (widget, ARROW_YEAR_LEFT);
}
if (event->window == private_data->arrow_win[ARROW_YEAR_RIGHT])
{
private_data->arrow_state[ARROW_YEAR_RIGHT] = GTK_STATE_PRELIGHT;
gtk_calendar_paint_arrow (widget, ARROW_YEAR_RIGHT);
}
return TRUE;
}
static gint
gtk_calendar_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint row;
gint col;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (event->window == private_data->main_win)
{
row = calendar->highlight_row;
col = calendar->highlight_col;
calendar->highlight_row = -1;
calendar->highlight_col = -1;
if (row > -1 && col > -1)
gtk_calendar_paint_day (widget, row, col);
}
if (event->window == private_data->arrow_win[ARROW_MONTH_LEFT])
{
private_data->arrow_state[ARROW_MONTH_LEFT] = GTK_STATE_NORMAL;
gtk_calendar_paint_arrow (widget, ARROW_MONTH_LEFT);
}
if (event->window == private_data->arrow_win[ARROW_MONTH_RIGHT])
{
private_data->arrow_state[ARROW_MONTH_RIGHT] = GTK_STATE_NORMAL;
gtk_calendar_paint_arrow (widget, ARROW_MONTH_RIGHT);
}
if (event->window == private_data->arrow_win[ARROW_YEAR_LEFT])
{
private_data->arrow_state[ARROW_YEAR_LEFT] = GTK_STATE_NORMAL;
gtk_calendar_paint_arrow (widget, ARROW_YEAR_LEFT);
}
if (event->window == private_data->arrow_win[ARROW_YEAR_RIGHT])
{
private_data->arrow_state[ARROW_YEAR_RIGHT] = GTK_STATE_NORMAL;
gtk_calendar_paint_arrow (widget, ARROW_YEAR_RIGHT);
}
return TRUE;
}
static void
gtk_calendar_paint_arrow (GtkWidget *widget,
guint arrow)
{
GtkCalendarPrivateData *private_data;
GdkWindow *window;
GdkGC *gc;
GtkCalendar *calendar;
gint state;
gint width, height;
g_return_if_fail (widget != NULL);
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (private_data->freeze_count)
{
private_data->dirty_header = 1;
return;
}
window = private_data->arrow_win[arrow];
if (window)
{
state = private_data->arrow_state[arrow];
gc = calendar->gc;
gdk_window_clear (window);
gdk_window_set_background (window, &(widget)->style->bg[state]);
gdk_window_get_size (window, &width, &height);
gdk_window_clear_area (window,
0,0,
width,height);
gdk_gc_set_foreground (gc, & (widget)->style->fg[state]);
if (arrow == ARROW_MONTH_LEFT || arrow == ARROW_YEAR_LEFT)
draw_arrow_left (window, gc, width/2 - 3, height/2 - 4, 8);
else
draw_arrow_right (window, gc, width/2 - 2, height/2 - 4, 8);
return;
}
}
void
gtk_calendar_freeze (GtkCalendar *calendar)
{
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
GTK_CALENDAR_PRIVATE_DATA (calendar)->freeze_count++;
}
void
gtk_calendar_thaw (GtkCalendar *calendar)
{
GtkCalendarPrivateData *private_data;
g_return_if_fail (calendar != NULL);
g_return_if_fail (GTK_IS_CALENDAR (calendar));
private_data = GTK_CALENDAR_PRIVATE_DATA (calendar);
if (private_data->freeze_count)
if (!(--private_data->freeze_count))
{
if (private_data->dirty_header)
if (GTK_WIDGET_DRAWABLE (calendar))
gtk_calendar_paint_header (GTK_WIDGET (calendar));
if (private_data->dirty_day_names)
if (GTK_WIDGET_DRAWABLE (calendar))
gtk_calendar_paint_day_names (GTK_WIDGET (calendar));
if (private_data->dirty_week)
if (GTK_WIDGET_DRAWABLE (calendar))
gtk_calendar_paint_week_numbers (GTK_WIDGET (calendar));
if (private_data->dirty_main)
if (GTK_WIDGET_DRAWABLE (calendar))
gtk_calendar_paint_main (GTK_WIDGET (calendar));
}
}
static void
gtk_calendar_set_background (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint i;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
if (GTK_WIDGET_REALIZED (widget))
{
for (i = 0; i < 4; i++)
{
if (private_data->arrow_win[i])
gdk_window_set_background (private_data->arrow_win[i],
HEADER_BG_COLOR (widget));
}
if (private_data->header_win)
gdk_window_set_background (private_data->header_win,
HEADER_BG_COLOR (widget));
if (private_data->day_name_win)
gdk_window_set_background (private_data->day_name_win,
BACKGROUND_COLOR (widget));
if (private_data->week_win)
gdk_window_set_background (private_data->week_win,
BACKGROUND_COLOR (widget));
if (private_data->main_win)
gdk_window_set_background (private_data->main_win,
BACKGROUND_COLOR (widget));
if (widget->window)
gdk_window_set_background (widget->window,
BACKGROUND_COLOR (widget));
}
}
static void
gtk_calendar_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
if (previous_style && GTK_WIDGET_REALIZED (widget))
gtk_calendar_set_background(widget);
}
static void
gtk_calendar_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CALENDAR (widget));
gtk_calendar_set_background (widget);
}
static gint
gtk_calendar_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
GtkCalendar *calendar;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
gtk_calendar_paint_day (widget, calendar->focus_row, calendar->focus_col);
return FALSE;
}
static gint
gtk_calendar_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
GtkCalendar *calendar;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
gtk_calendar_paint_day (widget, calendar->focus_row, calendar->focus_col);
return FALSE;
}
static gint
gtk_calendar_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkCalendar *calendar;
gint return_val;
gint old_focus_row;
gint old_focus_col;
gint row, col, day;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CALENDAR (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
calendar = GTK_CALENDAR (widget);
return_val = FALSE;
old_focus_row = calendar->focus_row;
old_focus_col = calendar->focus_col;
switch (event->keyval)
{
case GDK_Left:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
{
gtk_calendar_set_month_prev (calendar);
}
else
{
if (calendar->focus_col > 0)
{
calendar->focus_col--;
}
else if (calendar->focus_row > 0)
{
calendar->focus_col = 6;
calendar->focus_row--;
}
gtk_calendar_paint_day (widget, old_focus_row, old_focus_col);
gtk_calendar_paint_day (widget, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_Right:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
{
gtk_calendar_set_month_next (calendar);
}
else
{
if (calendar->focus_col < 6)
{
calendar->focus_col++;
}
else if (calendar->focus_row < 5)
{
calendar->focus_col = 0;
calendar->focus_row++;
}
gtk_calendar_paint_day (widget, old_focus_row, old_focus_col);
gtk_calendar_paint_day (widget, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_Up:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
{
gtk_calendar_set_year_prev (calendar);
}
else
{
if (calendar->focus_row > 0)
{
calendar->focus_row--;
}
gtk_calendar_paint_day (widget, old_focus_row, old_focus_col);
gtk_calendar_paint_day (widget, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_Down:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
{
gtk_calendar_set_year_next (calendar);
}
else
{
if (calendar->focus_row < 5)
{
calendar->focus_row++;
}
gtk_calendar_paint_day (widget, old_focus_row, old_focus_col);
gtk_calendar_paint_day (widget, calendar->focus_row,
calendar->focus_col);
}
break;
case GDK_space:
row = calendar->focus_row;
col = calendar->focus_col;
day = calendar->day[row][col];
if (row > -1 && col > -1)
{
gtk_calendar_freeze (calendar);
if (calendar->day_month[row][col] == MONTH_PREV)
{
gtk_calendar_set_month_prev (calendar);
}
else if (calendar->day_month[row][col] == MONTH_NEXT)
{
gtk_calendar_set_month_next (calendar);
}
gtk_calendar_select_day (calendar, day);
for (row = 0; row < 6; row ++)
for (col = 0; col < 7; col++)
{
if (calendar->day_month[row][col] == MONTH_CURRENT
&& calendar->day[row][col] == day)
{
calendar->focus_row = row;
calendar->focus_col = col;
}
}
gtk_calendar_thaw (calendar);
}
}
return return_val;
}
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