/* Copyright (C) 2000-2005 SKYRIX Software AG This file is part of SOPE. SOPE is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. SOPE 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with SOPE; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "iCalEvent.h" #include "iCalPerson.h" #include "iCalEventChanges.h" #include "iCalRecurrenceRule.h" #include "iCalRenderer.h" #include #include "common.h" @interface NSString(DurationTimeInterval) - (NSTimeInterval)durationAsTimeInterval; @end @implementation iCalEvent + (int)version { return [super version] + 0 /* v0 */; } + (void)initialize { NSAssert2([super version] == 0, @"invalid superclass (%@) version %i !", NSStringFromClass([self superclass]), [super version]); } - (void)dealloc { [self->endDate release]; [self->duration release]; [self->transparency release]; [super dealloc]; } /* NSCopying */ - (id)copyWithZone:(NSZone *)_zone { iCalEvent *new; new = [super copyWithZone:_zone]; new->endDate = [self->endDate copyWithZone:_zone]; new->duration = [self->duration copyWithZone:_zone]; new->transparency = [self->transparency copyWithZone:_zone]; return new; } /* accessors */ - (void)setEndDate:(NSCalendarDate *)_date { id tmp; if (self->endDate == _date) return; tmp = self->endDate; self->endDate = [_date retain]; [tmp release]; } - (NSCalendarDate *)endDate { if ([self hasEndDate]) return self->endDate; if ([self hasDuration] && (self->startDate != nil)) { return [[self startDate] dateByAddingYears:0 months:0 days:0 hours:0 minutes:0 seconds:[self durationAsTimeInterval]]; } return nil; } - (BOOL)hasEndDate { return self->endDate ? YES : NO; } - (void)setDuration:(NSString *)_value { ASSIGNCOPY(self->duration, _value); } - (NSString *)duration { // eg: "DURATION:PT1H" if ([self hasDuration]) return self->duration; // TODO: calculate return nil; } - (BOOL)hasDuration { return self->duration ? YES : NO; } - (NSTimeInterval)durationAsTimeInterval { /* eg: DURATION:PT1H P - "period" P2H30M - "2 hours 30 minutes" dur-value = (["+"] / "-") "P" (dur-date / dur-time / dur-week) dur-date = dur-day [dur-time] dur-time = "T" (dur-hour / dur-minute / dur-second) dur-week = 1*DIGIT "W" dur-hour = 1*DIGIT "H" [dur-minute] dur-minute = 1*DIGIT "M" [dur-second] dur-second = 1*DIGIT "S" dur-day = 1*DIGIT "D" */ if (self->duration) return [self->duration durationAsTimeInterval]; if (self->endDate != nil && self->startDate != nil) /* calculate duration using enddate */ return [[self endDate] timeIntervalSinceDate:[self startDate]]; return 0.0; } - (void)setTransparency:(NSString *)_transparency { ASSIGNCOPY(self->transparency, _transparency); } - (NSString *)transparency { return self->transparency; } /* convenience */ - (BOOL)isOpaque { NSString *s; s = [self transparency]; if (s && [[s uppercaseString] isEqualToString:@"TRANSPARENT"]) return NO; return YES; /* default is OPAQUE, see RFC2445, Section 4.8.2.7 */ } /* TODO: FIX THIS! The problem is, that startDate/endDate are inappropriately modelled here. We'd need to have a special iCalDate in order to fix all the mess. For the time being, we chose allday to mean 00:00 - 23:59 in startDate's timezone. */ - (BOOL)isAllDay { NSCalendarDate *ed; if (![self hasEndDate]) return NO; ed = [[[self endDate] copy] autorelease]; [ed setTimeZone:[self->startDate timeZone]]; if (([self->startDate hourOfDay] == 0) && ([self->startDate minuteOfHour] == 0) && ([ed hourOfDay] == 23) && ([ed minuteOfHour] == 59)) return YES; return NO; } - (BOOL)isWithinCalendarDateRange:(NGCalendarDateRange *)_range { if (![self isRecurrent]) { if (self->startDate && self->endDate) { NGCalendarDateRange *r; r = [NGCalendarDateRange calendarDateRangeWithStartDate:self->startDate endDate:self->endDate]; return [_range containsDateRange:r]; } else { return [_range containsDate:self->startDate]; } } else { NGCalendarDateRange *fir; fir = [NGCalendarDateRange calendarDateRangeWithStartDate:self->startDate endDate:self->endDate]; return [self isWithinCalendarDateRange:_range firstInstanceCalendarDateRange:fir]; } return NO; } - (NSArray *)recurrenceRangesWithinCalendarDateRange:(NGCalendarDateRange *)_r { NGCalendarDateRange *fir; if (![self isRecurrent]) return nil; fir = [NGCalendarDateRange calendarDateRangeWithStartDate:self->startDate endDate:self->endDate]; return [self recurrenceRangesWithinCalendarDateRange:_r firstInstanceCalendarDateRange:fir]; } - (NSCalendarDate *)lastPossibleRecurrenceStartDate { NGCalendarDateRange *fir; if (![self isRecurrent]) return nil; fir = [NGCalendarDateRange calendarDateRangeWithStartDate:self->startDate endDate:self->endDate]; return [self lastPossibleRecurrenceStartDateUsingFirstInstanceCalendarDateRange:fir]; } /* ical typing */ - (NSString *)entityName { return @"vevent"; } /* descriptions */ - (NSString *)description { NSMutableString *ms; ms = [NSMutableString stringWithCapacity:128]; [ms appendFormat:@"<0x%08X[%@]:", self, NSStringFromClass([self class])]; if (self->uid) [ms appendFormat:@" uid=%@", self->uid]; if (self->startDate) [ms appendFormat:@" from=%@", self->startDate]; if (self->endDate) [ms appendFormat:@" to=%@", self->endDate]; if (self->summary) [ms appendFormat:@" summary=%@", self->summary]; if (self->organizer) [ms appendFormat:@" organizer=%@", self->organizer]; if (self->attendees) [ms appendFormat:@" attendees=%@", self->attendees]; if ([self hasAlarms]) [ms appendFormat:@" alarms=%@", self->alarms]; [ms appendString:@">"]; return ms; } /* changes */ - (iCalEventChanges *)getChangesRelativeToEvent:(iCalEvent *)_event { return [iCalEventChanges changesFromEvent:_event toEvent:self]; } /* generating iCal content */ - (NSString *)vEventString { return [[iCalRenderer sharedICalendarRenderer] vEventStringForEvent:self]; } @end /* iCalEvent */ @implementation NSString(DurationTimeInterval) - (NSTimeInterval)durationAsTimeInterval { /* eg: DURATION:PT1H P - "period" P2H30M - "2 hours 30 minutes" dur-value = (["+"] / "-") "P" (dur-date / dur-time / dur-week) dur-date = dur-day [dur-time] dur-time = "T" (dur-hour / dur-minute / dur-second) dur-week = 1*DIGIT "W" dur-hour = 1*DIGIT "H" [dur-minute] dur-minute = 1*DIGIT "M" [dur-second] dur-second = 1*DIGIT "S" dur-day = 1*DIGIT "D" */ unsigned i, len; NSTimeInterval ti; BOOL isTime; int val; if (![self hasPrefix:@"P"]) { NSLog(@"Cannot parse iCal duration value: '%@'", self); return 0.0; } ti = 0.0; val = 0; for (i = 1, len = [self length], isTime = NO; i < len; i++) { unichar c; c = [self characterAtIndex:i]; if (c == 't' || c == 'T') { isTime = YES; val = 0; continue; } if (isdigit(c)) { val = (val * 10) + (c - 48); continue; } switch (c) { case 'W': /* week */ ti += (val * 7 * 24 * 60 * 60); break; case 'D': /* day */ ti += (val * 24 * 60 * 60); break; case 'H': /* hour */ ti += (val * 60 * 60); break; case 'M': /* min */ ti += (val * 60); break; case 'S': /* sec */ ti += val; break; default: [self logWithFormat:@"cannot process duration unit: '%c'", c]; break; } val = 0; } return ti; } @end /* NSString(DurationTimeInterval) */