51 lines
1.4 KiB
Mathematica
51 lines
1.4 KiB
Mathematica
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/*
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Copyright (C) 2004 SKYRIX Software AG
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This file is part of OpenGroupware.org.
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OGo is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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OGo is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with OGo; see the file COPYING. If not, write to the
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Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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*/
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// $Id: UIxAppointmentEditor.m 181 2004-08-11 15:13:25Z helge $
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#include "NSCalendarDate+UIx.h"
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#include "common.h"
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@implementation NSCalendarDate(UIx)
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- (NSCalendarDate *)dayOfWeeK:(unsigned)_day
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offsetFromSunday:(unsigned)_offset
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{
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unsigned dayOfWeek, distance;
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/* perform "locale" correction */
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dayOfWeek = (7 + [self dayOfWeek] - _offset) % 7;
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_day = (_day % 7);
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if(_day == dayOfWeek)
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return self;
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distance = _day - dayOfWeek;
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return [self dateByAddingYears:0 months:0 days:distance];
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}
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/* this implies that monday is the start of week! */
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- (NSCalendarDate *)sundayOfWeek {
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return [self dayOfWeeK:6 offsetFromSunday:1];
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}
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@end /* NSCalendarDate(UIx) */
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