[24] | 1 | //
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| 2 | // PSAlarm.m
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| 3 | // Pester
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| 4 | //
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| 5 | // Created by Nicholas Riley on Wed Oct 09 2002.
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| 6 | // Copyright (c) 2002 Nicholas Riley. All rights reserved.
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| 7 | //
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| 8 |
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| 9 | #import "PSAlarm.h"
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[34] | 10 | #import "PSAlert.h"
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[24] | 11 |
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[26] | 12 | NSString * const PSAlarmTimerSetNotification = @"PSAlarmTimerSetNotification";
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| 13 | NSString * const PSAlarmTimerExpiredNotification = @"PSAlarmTimerExpiredNotification";
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[24] | 14 |
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[34] | 15 | // XXX need to reset pending alarms after sleep, they "freeze" and never expire.
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| 16 |
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[24] | 17 | @implementation PSAlarm
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| 18 |
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[26] | 19 | - (void)dealloc;
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| 20 | {
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| 21 | // NSLog(@"DEALLOC %@", self);
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| 22 | alarmType = PSAlarmInvalid;
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| 23 | [alarmDate release]; alarmDate = nil;
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| 24 | [alarmMessage release]; alarmMessage = nil;
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| 25 | [invalidMessage release]; invalidMessage = nil;
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[28] | 26 | [timer invalidate]; [timer release]; timer = nil;
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[34] | 27 | [alerts release]; alerts = nil;
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[26] | 28 | [super dealloc];
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| 29 | }
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| 30 |
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[24] | 31 | - (void)_setAlarmDate:(NSCalendarDate *)aDate;
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| 32 | {
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| 33 | if (alarmDate != aDate) {
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| 34 | [alarmDate release];
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| 35 | alarmDate = nil;
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| 36 | alarmDate = [aDate retain];
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | - (void)_invalidate:(NSString *)aMessage;
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| 41 | {
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| 42 | alarmType = PSAlarmInvalid;
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| 43 | if (aMessage != invalidMessage) {
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| 44 | [invalidMessage release];
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| 45 | invalidMessage = nil;
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| 46 | [self _setAlarmDate: nil];
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| 47 | alarmInterval = 0;
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| 48 | invalidMessage = [aMessage retain];
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| 49 | }
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| 50 | }
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| 51 |
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| 52 | - (void)_validateForType:(PSAlarmType)type;
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| 53 | {
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[28] | 54 | if (alarmType == PSAlarmSet) return; // already valid
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[24] | 55 | [invalidMessage release];
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| 56 | invalidMessage = nil;
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| 57 | alarmType = type;
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| 58 | }
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| 59 |
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| 60 | - (void)_setDateFromInterval;
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| 61 | {
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| 62 | [alarmDate release]; alarmDate = nil;
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| 63 | alarmDate = [NSCalendarDate dateWithTimeIntervalSinceNow: alarmInterval];
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| 64 | [alarmDate retain];
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| 65 | [self _validateForType: PSAlarmInterval];
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| 66 | }
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| 67 |
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| 68 | - (void)setInterval:(NSTimeInterval)anInterval;
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| 69 | {
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| 70 | alarmInterval = anInterval;
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| 71 | if (alarmInterval <= 0) {
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| 72 | [self _invalidate: @"Please specify an alarm interval."]; return;
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| 73 | }
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[26] | 74 | [self _setDateFromInterval];
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[24] | 75 | }
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| 76 |
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| 77 | - (void)_setIntervalFromDate;
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| 78 | {
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[28] | 79 | alarmInterval = [alarmDate timeIntervalSinceNow] + 1;
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[24] | 80 | if (alarmInterval <= 0) {
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| 81 | [self _invalidate: @"Please specify an alarm time in the future."];
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| 82 | return;
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| 83 | }
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| 84 | [self _validateForType: PSAlarmDate];
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| 85 | }
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| 86 |
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[26] | 87 | - (void)setForDateAtTime:(NSCalendarDate *)dateTime;
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[24] | 88 | {
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[26] | 89 | [self _setAlarmDate: dateTime];
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[24] | 90 | [self _setIntervalFromDate];
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| 91 | }
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| 92 |
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| 93 | - (void)setForDate:(NSDate *)date atTime:(NSDate *)time;
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| 94 | {
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| 95 | NSCalendarDate *calTime, *calDate;
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| 96 | if (time == nil && date == nil) {
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| 97 | [self _invalidate: @"Please specify an alarm date and time."]; return;
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| 98 | }
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| 99 | if (time == nil) {
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| 100 | [self _invalidate: @"Please specify an alarm time."]; return;
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| 101 | }
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| 102 | if (date == nil) {
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| 103 | [self _invalidate: @"Please specify an alarm date."]; return;
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| 104 | }
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| 105 | // XXX if calTime's date is different from the default date, complain
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| 106 | calTime = [NSCalendarDate dateWithTimeIntervalSinceReferenceDate: [time timeIntervalSinceReferenceDate]];
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| 107 | calDate = [NSCalendarDate dateWithTimeIntervalSinceReferenceDate: [date timeIntervalSinceReferenceDate]];
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| 108 | if (calTime == nil || calDate == nil) {
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| 109 | [self _invalidate: @"Please specify a reasonable date and time."];
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| 110 | }
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| 111 | [self setForDateAtTime:
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| 112 | [[[NSCalendarDate alloc] initWithYear: [calDate yearOfCommonEra]
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| 113 | month: [calDate monthOfYear]
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| 114 | day: [calDate dayOfMonth]
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| 115 | hour: [calTime hourOfDay]
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| 116 | minute: [calTime minuteOfHour]
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| 117 | second: [calTime secondOfMinute]
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| 118 | timeZone: nil] autorelease]];
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| 119 | }
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| 120 |
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| 121 | - (BOOL)isValid;
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| 122 | {
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[26] | 123 | if (alarmType == PSAlarmDate) [self _setIntervalFromDate];
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| 124 | return (alarmType != PSAlarmInvalid);
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[24] | 125 | }
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| 126 |
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| 127 | - (void)setMessage:(NSString *)aMessage;
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| 128 | {
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| 129 | if (aMessage != alarmMessage) {
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| 130 | [alarmMessage release];
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| 131 | alarmMessage = nil;
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| 132 | alarmMessage = [aMessage retain];
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| 133 | }
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| 134 | }
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| 135 |
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| 136 | - (NSString *)message;
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| 137 | {
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| 138 | if (alarmMessage == nil || [alarmMessage isEqualToString: @""])
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| 139 | return @"Alarm!";
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| 140 | return alarmMessage;
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| 141 | }
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| 142 |
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| 143 | - (NSString *)invalidMessage;
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| 144 | {
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[26] | 145 | if (invalidMessage == nil) return @"";
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[24] | 146 | return invalidMessage;
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| 147 | }
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| 148 |
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[28] | 149 | - (NSCalendarDate *)date;
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[24] | 150 | {
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| 151 | if (alarmType == PSAlarmInterval) [self _setDateFromInterval];
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| 152 | return alarmDate;
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| 153 | }
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| 154 |
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[28] | 155 | - (NSString *)shortDateString;
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| 156 | {
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| 157 | return [[self date] descriptionWithCalendarFormat: [[NSUserDefaults standardUserDefaults] stringForKey: NSShortDateFormatString]];
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| 158 | }
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| 159 |
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| 160 | - (NSString *)timeString;
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| 161 | {
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| 162 | return [[self date] descriptionWithCalendarFormat: @"%1I:%M:%S %p"]; // XXX regular format doesn't work
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| 163 | }
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| 164 |
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| 165 | - (NSString *)timeRemainingString;
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| 166 | {
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| 167 | static const unsigned long long minute = 60, hour = minute * 60, day = hour * 24, year = day * 365.26;
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| 168 | unsigned long long interval = [self interval];
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| 169 | // +[NSString stringWithFormat:] in 10.1 does not support long longs: work around it by converting to unsigned ints or longs for display
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| 170 | if (interval == 0) return @"ÇexpiredÈ";
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| 171 | if (interval < minute) return [NSString stringWithFormat: @"%us", (unsigned)interval];
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| 172 | if (interval < day) return [NSString stringWithFormat: @"%uh %um", (unsigned)(interval / hour), (unsigned)((interval % hour) / minute)];
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| 173 | if (interval < year) return [NSString stringWithFormat: @"%u days", (unsigned)(interval / day)];
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| 174 | if (interval < 2 * year) return @"One year";
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| 175 | return [NSString stringWithFormat: @"%lu years", (unsigned long)(interval / year)];
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| 176 | }
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| 177 |
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[24] | 178 | - (NSTimeInterval)interval;
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| 179 | {
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[28] | 180 | if (alarmType == PSAlarmSet || alarmType == PSAlarmDate) [self _setIntervalFromDate];
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[24] | 181 | return alarmInterval;
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| 182 | }
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| 183 |
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[26] | 184 | - (BOOL)setTimer;
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| 185 | {
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| 186 | switch (alarmType) {
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| 187 | case PSAlarmDate: if (![self isValid]) return NO;
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| 188 | case PSAlarmInterval:
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| 189 | timer = [NSTimer scheduledTimerWithTimeInterval: alarmInterval
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| 190 | target: self
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| 191 | selector: @selector(_timerExpired:)
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| 192 | userInfo: nil
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| 193 | repeats: NO];
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| 194 | if (timer != nil) {
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[28] | 195 | [timer retain];
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[26] | 196 | alarmType = PSAlarmSet;
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| 197 | [[NSNotificationCenter defaultCenter] postNotificationName: PSAlarmTimerSetNotification object: self];
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| 198 | return YES;
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| 199 | }
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| 200 | default:
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| 201 | return NO;
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| 202 | }
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| 203 | }
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| 204 |
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| 205 | - (void)cancel;
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| 206 | {
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[28] | 207 | [timer invalidate]; [timer release]; timer = nil;
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[26] | 208 | }
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| 209 |
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| 210 | - (void)_timerExpired:(NSTimer *)aTimer;
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| 211 | {
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| 212 | [[NSNotificationCenter defaultCenter] postNotificationName: PSAlarmTimerExpiredNotification object: self];
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[28] | 213 | [timer release]; timer = nil;
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[26] | 214 | }
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| 215 |
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| 216 | - (NSString *)_alarmTypeString;
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| 217 | {
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| 218 | switch (alarmType) {
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| 219 | case PSAlarmDate: return @"PSAlarmDate";
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| 220 | case PSAlarmInterval: return @"PSAlarmInterval";
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| 221 | case PSAlarmSet: return @"PSAlarmSet";
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| 222 | case PSAlarmInvalid: return @"PSAlarmInvalid";
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| 223 | default: return [NSString stringWithFormat: @"<unknown: %u>", alarmType];
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| 224 | }
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| 225 | }
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| 226 |
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| 227 | - (NSComparisonResult)compare:(PSAlarm *)otherAlarm;
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| 228 | {
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| 229 | return [[self date] compare: [otherAlarm date]];
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| 230 | }
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| 231 |
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[34] | 232 | - (void)addAlert:(PSAlert *)alert;
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| 233 | {
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| 234 | if (alerts == nil) alerts = [[NSMutableArray alloc] initWithCapacity: 4];
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| 235 | [alerts addObject: alert];
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| 236 | }
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| 237 |
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| 238 | - (void)removeAlerts;
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| 239 | {
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| 240 | [alerts removeAllObjects];
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| 241 | }
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| 242 |
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| 243 | - (NSArray *)alerts;
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| 244 | {
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| 245 | return [[alerts copy] autorelease];
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| 246 | }
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| 247 |
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[26] | 248 | - (NSString *)description;
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| 249 | {
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| 250 | return [NSString stringWithFormat: @"%@: type %@ date %@ interval %.1f%@",
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| 251 | [super description], [self _alarmTypeString], alarmDate, alarmInterval,
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| 252 | (alarmType == PSAlarmInvalid ?
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| 253 | [NSString stringWithFormat: @"\ninvalid message: %@", invalidMessage]
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| 254 | : (alarmType == PSAlarmSet ?
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| 255 | [NSString stringWithFormat: @"\ntimer: %@", timer] : @""))];
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| 256 | }
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| 257 |
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| 258 | - (void)encodeWithCoder:(NSCoder *)coder;
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| 259 | {
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| 260 | if (![self isValid]) return;
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| 261 | [coder encodeValueOfObjCType: @encode(PSAlarmType) at: &alarmType];
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| 262 | switch (alarmType) {
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| 263 | case PSAlarmDate:
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| 264 | case PSAlarmSet:
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| 265 | [coder encodeObject: alarmDate];
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| 266 | break;
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| 267 | case PSAlarmInterval:
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| 268 | [coder encodeValueOfObjCType: @encode(NSTimeInterval) at: &alarmInterval];
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| 269 | break;
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| 270 | default:
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| 271 | break;
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| 272 | }
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| 273 | [coder encodeObject: alarmMessage];
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[28] | 274 | // NSLog(@"encoded: %@", self); // XXX happening twice, gdb refuses to show proper backtrace, grr
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[26] | 275 | return;
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| 276 | }
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| 277 |
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| 278 | - (id)initWithCoder:(NSCoder *)coder;
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| 279 | {
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| 280 | if ( (self = [super init]) != nil) {
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| 281 | [coder decodeValueOfObjCType: @encode(PSAlarmType) at: &alarmType];
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| 282 | switch (alarmType) {
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| 283 | case PSAlarmDate:
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| 284 | case PSAlarmSet:
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| 285 | [self _setAlarmDate: [coder decodeObject]];
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| 286 | break;
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| 287 | case PSAlarmInterval:
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| 288 | [coder decodeValueOfObjCType: @encode(NSTimeInterval) at: &alarmInterval];
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| 289 | break;
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| 290 | default:
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| 291 | break;
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| 292 | }
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| 293 | [self setMessage: [coder decodeObject]];
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| 294 | if (alarmType == PSAlarmSet) {
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| 295 | alarmType = PSAlarmDate;
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| 296 | [self setTimer];
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| 297 | }
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| 298 | }
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| 299 | return self;
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| 300 | }
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| 301 |
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[24] | 302 | @end
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