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gtk2/gtk/gtkcalendar.c
Owen Taylor 4e2b60ac4d Patch from Matthias Clasen to remove remove all instances of 
Wed Jul 18 19:28:46 2001  Owen Taylor  <otaylor@redhat.com>

	* gtk/*.c: Patch from Matthias Clasen to remove remove
	all instances of g_return_if_fail (foo != NULL); that are
	immediately before a g_return_if_fail (GTK_IS_FOO (foo));
	since the second check catches the NULL anyways.
2001-07-18 23:39:26 +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 Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#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_destroy (GtkObject *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 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_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, 0);
}
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);
object_class->destroy = gtk_calendar_destroy;
widget_class->realize = gtk_calendar_realize;
widget_class->unrealize = gtk_calendar_unrealize;
widget_class->expose_event = gtk_calendar_expose;
widget_class->size_request = gtk_calendar_size_request;
widget_class->size_allocate = gtk_calendar_size_allocate;
widget_class->button_press_event = gtk_calendar_button_press;
widget_class->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->style_set = gtk_calendar_style_set;
widget_class->state_changed = gtk_calendar_state_changed;
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;
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);
}
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) g_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_locale_to_utf8 (buffer, -1, NULL, NULL, NULL);
}
if (!default_monthname[0])
for (i=0; i<12; i++)
{
tmp_time=i*2764800;
strftime ( buffer, sizeof (buffer), "%B", gmtime (&tmp_time));
default_monthname[i] = g_locale_to_utf8 (buffer, -1, NULL, NULL, NULL);
}
/* Set defaults */
secs = time (NULL);
tm = localtime (&secs);
calendar->month = tm->tm_mon;
calendar->year = 1900 + tm->tm_year;
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;
if (gtk_widget_get_direction (GTK_WIDGET (calendar)) == GTK_TEXT_DIR_RTL)
column = 6 - column;
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 (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 (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 (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 (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 (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 (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->xthickness + INNER_BORDER);
attributes.y = private_data->header_h + (widget->style->ythickness
+ INNER_BORDER);
attributes.width = (widget->allocation.width
- (widget->style->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 (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->xthickness + INNER_BORDER);
attributes.y = (private_data->header_h + private_data->day_name_h
+ (widget->style->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 (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->xthickness + INNER_BORDER);
attributes.y = (private_data->header_h + private_data->day_name_h
+ (widget->style->ythickness + INNER_BORDER));
attributes.width = (widget->allocation.width - attributes.x
- (widget->style->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 (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 (private_data->day_name_win)
{
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 (calendar->xor_gc)
gdk_gc_unref (calendar->xor_gc);
if (calendar->gc)
gdk_gc_unref (calendar->gc);
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;
PangoLayout *layout;
PangoRectangle logical_rect;
gint height;
gint i;
gchar buffer[255];
gint calendar_margin = CALENDAR_MARGIN;
gint header_width, main_width;
gint max_header_height = 0;
calendar = GTK_CALENDAR (widget);
private_data = GTK_CALENDAR_PRIVATE_DATA (widget);
layout = gtk_widget_create_pango_layout (widget, NULL);
/*
* Calculate the requisition width for the widget.
*/
/* Header width */
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
private_data->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);
private_data->max_month_width = MAX (private_data->max_month_width,
logical_rect.width + 8);
max_header_height = MAX (max_header_height, logical_rect.height);
}
private_data->max_year_width = 0;
for (i=0; i<10; i++)
{
sprintf (buffer, "%d%d%d%d", i,i,i,i);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
private_data->max_year_width = MAX (private_data->max_year_width,
logical_rect.width + 8);
max_header_height = MAX (max_header_height, logical_rect.height);
}
}
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);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
private_data->min_day_width = MAX (private_data->max_day_char_width,
logical_rect.width);
private_data->max_day_char_ascent = MAX (private_data->max_label_char_ascent,
PANGO_ASCENT (logical_rect));
private_data->max_day_char_descent = MAX (private_data->max_label_char_descent,
PANGO_DESCENT (logical_rect));
}
/* We add one to max_day_char_width to be able to make the marked day "bold" */
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++)
{
pango_layout_set_text (layout, default_abbreviated_dayname[i], -1);
pango_layout_line_get_pixel_extents (pango_layout_get_lines (layout)->data, NULL, &logical_rect);
private_data->min_day_width = MAX (private_data->min_day_width, logical_rect.width);
private_data->max_label_char_ascent = MAX (private_data->max_label_char_ascent,
PANGO_ASCENT (logical_rect));
private_data->max_label_char_descent = MAX (private_data->max_label_char_descent,
PANGO_DESCENT (logical_rect));
}
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);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
private_data->max_week_char_width = MAX (private_data->max_week_char_width,
logical_rect.width / 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->xthickness + INNER_BORDER) *2);
/*
* Calculate the requisition height for the widget.
*/
if (calendar->display_flags & GTK_CALENDAR_SHOW_HEADING)
{
private_data->header_h = (max_header_height + 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;
}
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->ythickness + INNER_BORDER) * 2;
g_object_unref (G_OBJECT (layout));
}
static void
gtk_calendar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
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->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->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->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->xthickness + INNER_BORDER,
private_data->header_h + (widget->style->ythickness + INNER_BORDER),
allocation->width - (widget->style->xthickness + INNER_BORDER) * 2,
private_data->day_name_h);
if (private_data->week_win)
gdk_window_move_resize (private_data->week_win,
(widget->style->xthickness + INNER_BORDER),
private_data->header_h + private_data->day_name_h
+ (widget->style->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->xthickness + INNER_BORDER),
private_data->header_h + private_data->day_name_h
+ (widget->style->ythickness + INNER_BORDER),
allocation->width
- (private_data->week_width ? private_data->week_width + CALENDAR_XSEP :0)
- (widget->style->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 (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 gboolean
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_calendar_draw_focus (widget);
}
return FALSE;
}
static void
gtk_calendar_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
g_return_if_fail (GTK_IS_CALENDAR (widget));
g_return_if_fail (widget->window != NULL);
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_calendar_draw_focus (widget);
}
static void
gtk_calendar_paint_header (GtkWidget *widget)
{
GtkCalendar *calendar;
GdkGC *gc;
char buffer[255];
int x, y;
gint header_width, cal_height;
gint max_month_width;
gint max_year_width;
GtkCalendarPrivateData *private_data;
PangoLayout *layout;
PangoRectangle logical_rect;
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);
sprintf (buffer, "%d", calendar->year);
layout = gtk_widget_create_pango_layout (widget, buffer);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
/* Draw title */
y = (private_data->header_h - logical_rect.height) / 2;
/* Draw year and its arrows */
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
x = header_width - (3 + max_year_width
- (max_year_width - logical_rect.width)/2);
else
x = header_width - (3 + private_data->arrow_width + max_year_width
- (max_year_width - logical_rect.width)/2);
gdk_gc_set_foreground (gc, HEADER_FG_COLOR (GTK_WIDGET (calendar)));
gdk_draw_layout (private_data->header_win, gc, x, y, layout);
/* Draw month */
sprintf (buffer, "%s", default_monthname[calendar->month]);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
if (calendar->display_flags & GTK_CALENDAR_NO_MONTH_CHANGE)
x = 3 + (max_month_width - logical_rect.width) / 2;
else
x = 3 + private_data->arrow_width + (max_month_width - logical_rect.width)/2;
gdk_draw_layout (private_data->header_win, gc, x, y, layout);
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);
g_object_unref (G_OBJECT (layout));
}
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;
PangoLayout *layout;
PangoRectangle logical_rect;
GtkCalendarPrivateData *private_data;
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
*/
layout = gtk_widget_create_pango_layout (widget, NULL);
gdk_gc_set_foreground (gc, &widget->style->fg[GTK_STATE_SELECTED]);
for (i = 0; i < 7; i++)
{
if (gtk_widget_get_direction (GTK_WIDGET (calendar)) == GTK_TEXT_DIR_RTL)
day = 6 - i;
else
day = i;
if (calendar->display_flags & GTK_CALENDAR_WEEK_START_MONDAY)
day= (day+1)%7;
sprintf (buffer, "%s", default_abbreviated_dayname[day]);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
gdk_draw_layout (private_data->day_name_win, gc,
((private_data->week_width ? CALENDAR_XSEP : CALENDAR_MARGIN)
+ day_wid_sep * i
+ private_data->week_width
+ (day_width - logical_rect.width)/2),
CALENDAR_MARGIN + DAY_YPAD + logical_rect.y,
layout);
}
g_object_unref (G_OBJECT (layout));
}
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_loc, day_height;
GtkCalendarPrivateData *private_data;
PangoLayout *layout;
PangoRectangle logical_rect;
g_return_if_fail (GTK_IS_CALENDAR (widget));
g_return_if_fail (widget->window != NULL);
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
*/
layout = gtk_widget_create_pango_layout (widget, NULL);
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++;
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]));
sprintf (buffer, "%d", week);
pango_layout_set_text (layout, buffer, -1);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
y_loc = top_y_for_row (calendar, row) + (day_height - logical_rect.height) / 2;
x_loc = (private_data->week_width
- logical_rect.width
- CALENDAR_XSEP - DAY_XPAD);
gdk_draw_layout (private_data->week_win, gc, x_loc, y_loc, layout);
}
g_object_unref (G_OBJECT (layout));
}
static void
gtk_calendar_paint_day_num (GtkWidget *widget,
gint day)
{
GtkCalendar *calendar;
gint r, c, row, col;
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_loc;
gint day_xspace;
GtkCalendarPrivateData *private_data;
PangoLayout *layout;
PangoRectangle logical_rect;
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);
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);
layout = gtk_widget_create_pango_layout (widget, buffer);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
x_loc -= logical_rect.width;
y_loc = y_top + (day_height - logical_rect.height) / 2;
gdk_draw_layout (private_data->main_win, gc,
x_loc, y_loc, layout);
if (calendar->marked_date[day-1]
&& calendar->day_month[row][col] == MONTH_CURRENT)
gdk_draw_layout (private_data->main_win, gc,
x_loc-1, y_loc, layout);
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);
}
g_object_unref (G_OBJECT (layout));
}
static void
gtk_calendar_paint_main (GtkWidget *widget)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint row, col;
g_return_if_fail (GTK_IS_CALENDAR (widget));
g_return_if_fail (widget->window != NULL);
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 (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 (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;
}
gboolean
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 (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 (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));
}
}
gboolean
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;
}
gboolean
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 (GTK_IS_CALENDAR (calendar));
if (year)
*year = calendar->year;
if (month)
*month = calendar->month;
if (day)
*day = calendar->selected_day;
}
static gboolean
gtk_calendar_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkCalendar *calendar;
GtkCalendarPrivateData *private_data;
gint x, y;
void (* action_func) (GtkCalendar *);
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);
action_func = NULL;
if (event->window == private_data->arrow_win[ARROW_MONTH_LEFT])
action_func = gtk_calendar_set_month_prev;
else if (event->window == private_data->arrow_win[ARROW_MONTH_RIGHT])
action_func = gtk_calendar_set_month_next;
else if (event->window == private_data->arrow_win[ARROW_YEAR_LEFT])
action_func = gtk_calendar_set_year_prev;
else if (event->window == private_data->arrow_win[ARROW_YEAR_RIGHT])
action_func = gtk_calendar_set_year_next;
/* only call the action on single click, not double */
if (action_func && event->type == GDK_BUTTON_PRESS)
(* action_func) (calendar);
return action_func != NULL;
}
static gboolean
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 gboolean
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 gboolean
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 (GTK_IS_CALENDAR (calendar));
GTK_CALENDAR_PRIVATE_DATA (calendar)->freeze_count++;
}
void
gtk_calendar_thaw (GtkCalendar *calendar)
{
GtkCalendarPrivateData *private_data;
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 (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 (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 (GTK_IS_CALENDAR (widget));
gtk_calendar_set_background (widget);
}
static void
gtk_calendar_destroy (GtkObject *object)
{
GtkCalendarPrivateData *private_data;
private_data = GTK_CALENDAR_PRIVATE_DATA (object);
g_free (private_data);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static gboolean
gtk_calendar_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkCalendar *calendar;
gint return_val;
gint old_focus_row;
gint old_focus_col;
gint row, col, day;
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_KP_Left:
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_KP_Right:
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_KP_Up:
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_KP_Down:
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_KP_Space:
case GDK_space:
row = calendar->focus_row;
col = calendar->focus_col;
day = calendar->day[row][col];
if (row > -1 && col > -1)
{
return_val = TRUE;
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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