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/* Functions to mark calendars
*
* Copyright (C) 1998 Red Hat Software, Inc.
*
* Author: Federico Mena <federico@nuclecu.unam.mx>
*/
#include <config.h>
#include "gnome-cal.h"
#include "main.h"
#include "mark.h"
#include "timeutil.h"
/* In the month item, marks all the days that are touched by the specified time span. Assumes that
* the time span is completely contained within the month.
*/
static void
mark_event_in_month (GnomeMonthItem *mitem, time_t start, time_t end)
{
struct tm tm;
GnomeCanvasItem *item;
int day_index;
tm = *localtime (&start);
for (; start <= end; start += 60 * 60 * 24) {
mktime (&tm); /* normalize the time */
/* Figure out the day index that corresponds to this time */
day_index = gnome_month_item_day2index (mitem, tm.tm_mday);
g_assert (day_index >= 0);
/* Mark the day box */
item = gnome_month_item_num2child (mitem, GNOME_MONTH_ITEM_DAY_BOX + day_index);
gnome_canvas_item_set (item,
"fill_color", color_spec_from_prop (COLOR_PROP_MARK_DAY_BG),
NULL);
/* Next day */
tm.tm_mday++;
}
}
static void
mark_current_day (GnomeMonthItem *mitem)
{
struct tm *tm;
time_t t;
int day_index;
GnomeCanvasItem *item;
t = time (NULL);
tm = localtime (&t);
if (((tm->tm_year + 1900) == mitem->year) && (tm->tm_mon == mitem->month)) {
day_index = gnome_month_item_day2index (mitem, tm->tm_mday);
item = gnome_month_item_num2child (mitem, GNOME_MONTH_ITEM_DAY_LABEL + day_index);
gnome_canvas_item_set (item,
"fill_color", color_spec_from_prop (COLOR_PROP_CURRENT_DAY_FG),
"font", CURRENT_DAY_FONT,
NULL);
}
}
void
mark_month_item (GnomeMonthItem *mitem, Calendar *cal)
{
time_t month_begin, month_end;
GList *list, *l;
CalendarObject *co;
month_begin = time_month_begin (time_from_day (mitem->year, mitem->month, 1));
month_end = time_month_end (month_begin);
list = calendar_get_events_in_range (cal, month_begin, month_end);
for (l = list; l; l = l->next) {
co = l->data;
/* We clip the event's start and end times to the month's limits */
mark_event_in_month (mitem, MAX (co->ev_start, month_begin), MIN (co->ev_end, month_end));
}
calendar_destroy_event_list (list);
mark_current_day (mitem);
}
void
unmark_month_item (GnomeMonthItem *mitem)
{
g_return_if_fail (mitem != NULL);
g_return_if_fail (GNOME_IS_MONTH_ITEM (mitem));
/* We have to do this in several calls to gnome_canvas_item_set(), as color_spec_from_prop()
* returns a pointer to a static string -- and we need several values.
*/
gnome_canvas_item_set (GNOME_CANVAS_ITEM (mitem),
"heading_color", color_spec_from_prop (COLOR_PROP_HEADING_COLOR),
NULL);
gnome_canvas_item_set (GNOME_CANVAS_ITEM (mitem),
"outline_color", color_spec_from_prop (COLOR_PROP_OUTLINE_COLOR),
NULL);
gnome_canvas_item_set (GNOME_CANVAS_ITEM (mitem),
"day_box_color", color_spec_from_prop (COLOR_PROP_EMPTY_DAY_BG),
NULL);
gnome_canvas_item_set (GNOME_CANVAS_ITEM (mitem),
"day_color", color_spec_from_prop (COLOR_PROP_DAY_FG),
NULL);
gnome_canvas_item_set (GNOME_CANVAS_ITEM (mitem),
"day_font", NORMAL_DAY_FONT,
NULL);
}
/* Frees the prelight information in the month item when it is destroyed */
static void
free_prelight_info (GtkObject *object, gpointer data)
{
g_free (gtk_object_get_data (object, "prelight_info"));
}
/* Handles EnterNotify and LeaveNotify events from the month item's day groups, and performs
* appropriate prelighting.
*/
static gint
day_event (GnomeCanvasItem *item, GdkEvent *event, gpointer data)
{
GnomeCanvasItem *mitem;
GnomeCanvasItem *box;
int child_num, day;
gulong *day_pixels;
GetPrelightColorFunc func;
gpointer func_data;
char *spec;
GdkColor color;
mitem = data;
child_num = gnome_month_item_child2num (GNOME_MONTH_ITEM (mitem), item);
day = gnome_month_item_num2day (GNOME_MONTH_ITEM (mitem), child_num);
if (day == 0)
return FALSE; /* it was a day outside the month's range */
child_num -= GNOME_MONTH_ITEM_DAY_GROUP;
box = gnome_month_item_num2child (GNOME_MONTH_ITEM (mitem), GNOME_MONTH_ITEM_DAY_BOX + child_num);
day_pixels = gtk_object_get_data (GTK_OBJECT (mitem), "prelight_info_pixels");
func = gtk_object_get_data (GTK_OBJECT (mitem), "prelight_info_func");
func_data = gtk_object_get_data (GTK_OBJECT (mitem), "prelight_info_data");
switch (event->type) {
case GDK_ENTER_NOTIFY:
spec = (* func) (func_data);
gnome_canvas_item_set (box,
"fill_color", spec,
NULL);
break;
case GDK_LEAVE_NOTIFY:
color.pixel = day_pixels[child_num];
gnome_canvas_item_set (box,
"fill_color_gdk", &color,
NULL);
break;
default:
break;
}
return FALSE;
}
void
month_item_prepare_prelight (GnomeMonthItem *mitem, GetPrelightColorFunc func, gpointer func_data)
{
gulong *day_pixels;
GnomeCanvasItem *day_group;
GnomeCanvasItem *box;
GtkArg arg;
GdkColor *color;
int i;
day_pixels = gtk_object_get_data (GTK_OBJECT (mitem), "prelight_info_pixels");
/* Set up the buffer for day background colors and attach it to the month item, if necessary */
if (!day_pixels) {
/* Create the buffer and attach it */
day_pixels = g_new (gulong, 42);
gtk_object_set_data (GTK_OBJECT (mitem), "prelight_info_pixels", day_pixels);
gtk_object_set_data (GTK_OBJECT (mitem), "prelight_info_func", func);
gtk_object_set_data (GTK_OBJECT (mitem), "prelight_info_data", func_data);
gtk_signal_connect (GTK_OBJECT (mitem), "destroy",
(GtkSignalFunc) free_prelight_info,
NULL);
/* Connect the appropriate signals to perform prelighting */
for (i = 0; i < 42; i++) {
day_group = gnome_month_item_num2child (GNOME_MONTH_ITEM (mitem), GNOME_MONTH_ITEM_DAY_GROUP + i);
gtk_signal_connect (GTK_OBJECT (day_group), "event",
(GtkSignalFunc) day_event,
mitem);
}
}
/* Fetch the background colors from the day boxes and store them in the prelight info */
for (i = 0; i < 42; i++) {
box = gnome_month_item_num2child (mitem, GNOME_MONTH_ITEM_DAY_BOX + i);
arg.name = "fill_color_gdk";
gtk_object_getv (GTK_OBJECT (box), 1, &arg);
color = GTK_VALUE_BOXED (arg);
day_pixels[i] = color->pixel;
g_free (color);
}
}
char *
default_prelight_func (gpointer data)
{
return color_spec_from_prop (COLOR_PROP_PRELIGHT_DAY_BG);
}
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