From 4eb47f9a4696877218bf05d53c52f829d2afcdd5 Mon Sep 17 00:00:00 2001 From: Damon Chaplin Date: Sat, 20 May 2000 10:38:19 +0000 Subject: new files to implement iCalendar recurrence rules. These are only part 2000-05-20 Damon Chaplin * cal-util/cal-recur.[hc]: new files to implement iCalendar recurrence rules. These are only part finished, but people may like to check that the architecture seems OK. 2000-05-17 Damon Chaplin * gui/e-day-view.c (e_day_view_on_delete_occurrence): * gui/e-week-view.c (e_week_view_on_delete_occurrence): use a copy of the iCalObject so we detect the change in the "update_event" callback. Maybe we should just update the view ourselves and then we wouldn't need to detect any change in the callback. * cal-util/calobj.c (ical_object_reset_recurrence): new function to get rid of any recurrence rules. Used when we 'unrecur' an event. * gui/e-day-view.c (e_day_view_key_press): don't add a new event if it won't fit, or we end up adding a new event for each key press. (e_day_view_update_event_label): don't update it if it doesn't have an EText item (i.e. it isn't visible). * gui/e-day-view-time-item.c: allow selection of times using this column. svn path=/trunk/; revision=3144 --- calendar/cal-util/cal-recur.h | 102 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 calendar/cal-util/cal-recur.h (limited to 'calendar/cal-util/cal-recur.h') diff --git a/calendar/cal-util/cal-recur.h b/calendar/cal-util/cal-recur.h new file mode 100644 index 0000000000..340b897417 --- /dev/null +++ b/calendar/cal-util/cal-recur.h @@ -0,0 +1,102 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Evolution calendar recurrence rule functions + * + * Copyright (C) 2000 Helix Code, Inc. + * + * Author: Damon Chaplin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef CAL_RECURL_H +#define CAL_RECUR_H + +#include +#include + +BEGIN_GNOME_DECLS + + +/* FIXME: I've put modified versions of RecurType and Recurrence here, since + the ones in calobj.h don't support all of iCalendar. Hopefully Seth will + update those soon and these can be removed. */ + +enum RecurType { + RECUR_YEARLY, + RECUR_MONTHLY, + RECUR_WEEKLY, + RECUR_DAILY, + RECUR_HOURLY, + RECUR_MINUTELY, + RECUR_SECONDLY, +}; + +typedef struct { + enum RecurType type; + + int interval; + + int weekday; + + int month_pos; + + int month_day; + + + /* For BYMONTH modifier. A list of GINT_TO_POINTERs, 0-11. */ + GList *bymonth; + + + /* For BYHOUR modifier. A list of GINT_TO_POINTERs, 0-23. */ + GList *byhour; + + /* For BYMINUTE modifier. A list of GINT_TO_POINTERs, 0-59. */ + GList *byminute; + + /* For BYSECOND modifier. A list of GINT_TO_POINTERs, 0-60. */ + GList *bysecond; + +} Recurrence; + + + +/* This is what we use to represent a date & time. */ +typedef struct _CalObjTime CalObjTime; +struct _CalObjTime { + guint16 year; + guint8 month; /* 0 - 11 */ + guint8 day; /* 1 - 31 */ + guint8 hour; /* 0 - 23 */ + guint8 minute; /* 0 - 59 */ + guint8 second; /* 0 - 59 (maybe 60 for leap second) */ +}; + + + +/* Returns an unsorted array of time_t's resulting from expanding the + recurrence within the given interval. Each iCalendar event can have any + number of recurrence rules specifying occurrences of the event, as well as + any number of recurrence rules specifying exceptions. */ +GArray* +cal_obj_expand_recurrence (CalObjTime *event_start, + CalObjTime *event_end, + Recurrence *recur, + CalObjTime *interval_start, + CalObjTime *interval_end); + +END_GNOME_DECLS + +#endif -- cgit v1.2.3