44b0bf58aa
Monotone-Revision: 3e32e33bcda13cac968969da6e841bd9e5f639d1 Monotone-Author: wsourdeau@inverse.ca Monotone-Date: 2006-08-30T22:45:19 Monotone-Branch: ca.inverse.sogo
58 lines
1.7 KiB
Objective-C
58 lines
1.7 KiB
Objective-C
/* NSCalendarDate+Scheduler.m - this file is part of SOGo
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Copyright (C) 2000-2004 SKYRIX Software AG
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This file is part of OGo
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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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#import <NGExtensions/NSCalendarDate+misc.h>
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#import "NSCalendarDate+Scheduler.h"
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@implementation NSCalendarDate (SchedulerExtensions)
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- (BOOL) isDateInSameMonth: (NSCalendarDate *) _other
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{
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return (([_other yearOfCommonEra] == [self yearOfCommonEra]) &&
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([_other monthOfYear] == [self monthOfYear]));
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}
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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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{
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return [self dayOfWeeK:6 offsetFromSunday:1];
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}
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@end
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