2 files changed, 146 insertions, 0 deletions
diff --git a/calendar/gui/mark.c b/calendar/gui/mark.c
new file mode 100644
index 0000000000..b1c6df8fa3
--- /dev/null
+++ b/calendar/gui/mark.c
@@ -0,0 +1,122 @@
+/* Functions to mark calendars
+ *
+ * Copyright (C) 1998 Red Hat Software, Inc.
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx>
+ */
+
+#include <config.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", "tan",
+				       NULL);
+
+		/* Mark the day label */
+
+		item = gnome_month_item_num2child (mitem, GNOME_MONTH_ITEM_DAY_LABEL + day_index);
+		gnome_canvas_item_set (item,
+				       "fill_color", "black",
+				       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", "blue",
+				       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)
+{
+	int i;
+	GnomeCanvasItem *item;
+
+	g_return_if_fail (mitem != NULL);
+	g_return_if_fail (GNOME_IS_MONTH_ITEM (mitem));
+
+	for (i = 0; i < 42; i++) {
+		/* Box */
+
+		item = gnome_month_item_num2child (GNOME_MONTH_ITEM (mitem), GNOME_MONTH_ITEM_DAY_BOX + i);
+		gnome_canvas_item_set (item,
+				       "fill_color", "#d6d6d6d6d6d6",
+				       NULL);
+
+		/* Label */
+
+		item = gnome_month_item_num2child (GNOME_MONTH_ITEM (mitem), GNOME_MONTH_ITEM_DAY_LABEL + i);
+		gnome_canvas_item_set (item,
+				       "fill_color", "black",
+				       NULL);
+	}
+}
diff --git a/calendar/gui/mark.h b/calendar/gui/mark.h
new file mode 100644
index 0000000000..9ffafe20a7
--- /dev/null
+++ b/calendar/gui/mark.h
@@ -0,0 +1,24 @@
+/* Functions to mark calendars
+ *
+ * Copyright (C) 1998 Red Hat Software, Inc.
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx>
+ */
+
+#ifndef MARK_H
+#define MARK_H
+
+#include "calendar.h"
+#include "gnome-month-item.h"
+
+
+/* Takes a monthly calendar item and marks the days that have events scheduled for them in the
+ * specified calendar.  It also highlights the current day.
+ */
+void mark_month_item (GnomeMonthItem *mitem, Calendar *cal);
+
+/* Unmarks all the days in the specified month item */
+void unmark_month_item (GnomeMonthItem *mitem);
+
+
+#endif