2 Copyright (C) 2004 SKYRIX Software AG
4 This file is part of OpenGroupware.org.
6 OGo is free software; you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 OGo is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14 License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with OGo; see the file COPYING. If not, write to the
18 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
21 // $Id: UIxAppointmentEditor.m 181 2004-08-11 15:13:25Z helge $
23 #include "NSCalendarDate+UIx.h"
26 @implementation NSCalendarDate(UIx)
28 - (NSCalendarDate *)dayOfWeeK:(unsigned)_day
29 offsetFromSunday:(unsigned)_offset
31 unsigned dayOfWeek, distance;
33 /* perform "locale" correction */
34 dayOfWeek = (7 + [self dayOfWeek] - _offset) % 7;
40 distance = _day - dayOfWeek;
41 return [self dateByAddingYears:0 months:0 days:distance];
44 /* this implies that monday is the start of week! */
46 - (NSCalendarDate *)sundayOfWeek {
47 return [self dayOfWeeK:6 offsetFromSunday:1];
50 @end /* NSCalendarDate(UIx) */