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NSCalendar.m
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NSCalendar.m
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/** NSCalendar.m
Copyright (C) 2010 Free Software Foundation, Inc.
Written by: Stefan Bidigaray
Date: December, 2010
This library 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 of the License, or (at your option) any later version.
This library 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 this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#import "common.h"
#import "Foundation/NSCalendar.h"
#import "Foundation/NSCoder.h"
#import "Foundation/NSDate.h"
#import "Foundation/NSDictionary.h"
#import "Foundation/NSException.h"
#import "Foundation/NSLocale.h"
#import "Foundation/NSLock.h"
#import "Foundation/NSNotification.h"
#import "Foundation/NSString.h"
#import "Foundation/NSTimeZone.h"
#import "Foundation/NSUserDefaults.h"
#if defined(HAVE_UNICODE_UCAL_H)
#define id ucal_id
#include <unicode/ucal.h>
#include <unicode/uvernum.h>
#undef id
#elif defined(HAVE_ICU_H)
#include <icu.h>
#endif
#if GS_USE_ICU == 1
static UCalendarDateFields _NSCalendarUnitToDateField(NSCalendarUnit unit)
{
if (unit & NSCalendarUnitEra)
return UCAL_ERA;
if (unit & NSCalendarUnitYear)
return UCAL_YEAR;
if (unit & NSCalendarUnitMonth)
return UCAL_MONTH;
if (unit & NSCalendarUnitDay)
return UCAL_DAY_OF_MONTH;
if (unit & NSCalendarUnitHour)
return UCAL_HOUR_OF_DAY;
if (unit & NSCalendarUnitMinute)
return UCAL_MINUTE;
if (unit & NSCalendarUnitSecond)
return UCAL_SECOND;
if (unit & NSCalendarUnitWeekOfYear)
return UCAL_WEEK_OF_YEAR;
if (unit & NSCalendarUnitWeekday)
return UCAL_DAY_OF_WEEK;
if (unit & NSCalendarUnitWeekdayOrdinal)
return UCAL_DAY_OF_WEEK_IN_MONTH;
return (UCalendarDateFields)-1;
}
#endif /* GS_USE_ICU */
typedef struct {
NSString *identifier;
NSString *localeID;
NSTimeZone *tz;
void *cal;
NSInteger firstWeekday;
NSInteger minimumDaysInFirstWeek;
} Calendar;
#define my ((Calendar*)_NSCalendarInternal)
@interface NSCalendar (PrivateMethods)
- (void *) _openCalendarFor: (NSTimeZone *)timeZone;
- (void) _resetCalendar;
- (void *) _UCalendar;
- (NSString *) _localeIDWithLocale: (NSLocale*)locale;
- (NSString *) _localeIdentifier;
- (void) _setLocaleIdentifier: (NSString*)identifier;
@end
static NSCalendar *autoupdatingCalendar = nil;
static NSRecursiveLock *classLock = nil;
#define TZ_NAME_LENGTH 1024
#define SECOND_TO_MILLI 1000.0
#define MILLI_TO_NANO 1000000
@implementation NSCalendar (PrivateMethods)
#if GS_USE_ICU == 1
- (void *) _openCalendarFor: (NSTimeZone *)timeZone
{
NSString *tzName;
NSUInteger tzLen;
unichar cTzId[TZ_NAME_LENGTH];
const char *cLocaleId;
UErrorCode err = U_ZERO_ERROR;
UCalendarType type;
cLocaleId = [my->localeID UTF8String];
tzName = [timeZone name];
tzLen = [tzName length];
if (tzLen > TZ_NAME_LENGTH)
{
tzLen = TZ_NAME_LENGTH;
}
[tzName getCharacters: cTzId range: NSMakeRange(0, tzLen)];
if ([NSGregorianCalendar isEqualToString: my->identifier])
{
type = UCAL_GREGORIAN;
}
else
{
#ifndef UCAL_DEFAULT
/*
* Older versions of ICU used UCAL_TRADITIONAL rather than UCAL_DEFAULT
* so if one is not available we use the other.
*/
type = UCAL_TRADITIONAL;
#else
type = UCAL_DEFAULT;
#endif
// We do not need to call uloc_setKeywordValue() here to set the calendar on the locale
// as the calendar is already encoded in the locale id by _localeIDWithLocale:.
}
return ucal_open((const UChar *)cTzId, tzLen, cLocaleId, type, &err);
}
#endif
- (void) _resetCalendar
{
#if GS_USE_ICU == 1
if (my->cal != NULL)
{
ucal_close(my->cal);
}
my->cal = [self _openCalendarFor: my->tz];
if (NSNotFound == my->firstWeekday)
{
my->firstWeekday
= ucal_getAttribute(my->cal, UCAL_FIRST_DAY_OF_WEEK);
}
else
{
ucal_setAttribute(my->cal, UCAL_FIRST_DAY_OF_WEEK,
(int32_t)my->firstWeekday);
}
if (NSNotFound == my->minimumDaysInFirstWeek)
{
my->minimumDaysInFirstWeek
= ucal_getAttribute(my->cal, UCAL_MINIMAL_DAYS_IN_FIRST_WEEK);
}
else
{
ucal_setAttribute(my->cal, UCAL_MINIMAL_DAYS_IN_FIRST_WEEK,
(int32_t)my->minimumDaysInFirstWeek);
}
#endif
}
- (void *) _UCalendar
{
return my->cal;
}
- (NSString*) _localeIDWithLocale: (NSLocale *)locale
{
NSString *result;
NSString *localeId;
NSMutableDictionary *tmpDict;
localeId = [locale localeIdentifier];
if (my->identifier)
{
tmpDict = [[NSLocale componentsFromLocaleIdentifier: localeId]
mutableCopyWithZone: NULL];
[tmpDict removeObjectForKey: NSLocaleCalendar];
[tmpDict setObject: my->identifier forKey: NSLocaleCalendarIdentifier];
result = [NSLocale localeIdentifierFromComponents: tmpDict];
RELEASE(tmpDict);
}
else
{
result = localeId;
}
return result;
}
- (NSString*) _localeIdentifier
{
return my->localeID;
}
- (void) _setLocaleIdentifier: (NSString *) identifier
{
if ([identifier isEqualToString: my->localeID])
{
return;
}
ASSIGN(my->localeID, identifier);
[self _resetCalendar];
}
- (void) _defaultsDidChange: (NSNotification*)n
{
NSUserDefaults *defs;
NSString *locale;
NSString *calendar;
NSString *tz;
defs = [NSUserDefaults standardUserDefaults];
locale = [defs stringForKey: @"Locale"];
calendar = [defs stringForKey: @"Calendar"];
tz = [defs stringForKey: @"Local Time Zone"];
[classLock lock];
if ([locale isEqual: my->localeID] == NO
|| [calendar isEqual: my->identifier] == NO
|| [tz isEqual: [my->tz name]] == NO)
{
#if GS_USE_ICU == 1
ucal_close(my->cal);
#endif
ASSIGN(my->localeID, locale);
ASSIGN(my->identifier, calendar);
RELEASE(my->tz);
my->tz = [[NSTimeZone alloc] initWithName: tz];
[self _resetCalendar];
}
[classLock unlock];
}
@end
@implementation NSCalendar
+ (void) initialize
{
if (self == [NSCalendar class])
{
classLock = [NSRecursiveLock new];
}
}
+ (id) currentCalendar
{
NSCalendar *result;
NSString *identifier;
// This identifier may be nil
identifier = [[NSLocale currentLocale] objectForKey: NSLocaleCalendarIdentifier];
result = [[NSCalendar alloc] initWithCalendarIdentifier: identifier];
return AUTORELEASE(result);
}
+ (id) autoupdatingCurrentCalendar
{
[classLock lock];
if (nil == autoupdatingCalendar)
{
autoupdatingCalendar = [[self currentCalendar] copy];
[[NSNotificationCenter defaultCenter]
addObserver: autoupdatingCalendar
selector: @selector(_defaultsDidChange:)
name: NSUserDefaultsDidChangeNotification
object: nil];
}
[classLock unlock];
return autoupdatingCalendar;
}
+ (id) calendarWithIdentifier: (NSString *) identifier
{
return AUTORELEASE([[self alloc] initWithCalendarIdentifier: identifier]);
}
- (id) init
{
return [self initWithCalendarIdentifier: nil];
}
- (id) initWithCalendarIdentifier: (NSString *) identifier
{
NSAssert(0 == _NSCalendarInternal, NSInvalidArgumentException);
_NSCalendarInternal = NSZoneCalloc([self zone], sizeof(Calendar), 1);
my->firstWeekday = NSNotFound;
my->minimumDaysInFirstWeek = NSNotFound;
ASSIGN(my->identifier, identifier);
ASSIGN(my->tz, [NSTimeZone defaultTimeZone]);
[self setLocale: [NSLocale currentLocale]];
return self;
}
- (void) dealloc
{
if (0 != _NSCalendarInternal)
{
#if GS_USE_ICU == 1
ucal_close (my->cal);
#endif
RELEASE(my->identifier);
RELEASE(my->localeID);
RELEASE(my->tz);
NSZoneFree([self zone], _NSCalendarInternal);
}
[super dealloc];
}
- (NSString *) calendarIdentifier
{
return my->identifier;
}
- (NSInteger) component: (NSCalendarUnit)unit
fromDate: (NSDate *)date
{
NSDateComponents *comps = [self components: unit
fromDate: date];
NSInteger val = 0;
switch (unit)
{
case NSCalendarUnitEra:
val = [comps era];
break;
case NSCalendarUnitYear:
val = [comps year];
break;
case NSCalendarUnitMonth:
val = [comps month];
break;
case NSCalendarUnitDay:
val = [comps day];
break;
case NSCalendarUnitHour:
val = [comps hour];
break;
case NSCalendarUnitMinute:
val = [comps minute];
break;
case NSCalendarUnitSecond:
val = [comps second];
break;
case NSCalendarUnitWeekday:
val = [comps weekday];
break;
case NSCalendarUnitWeekdayOrdinal:
val = [comps weekdayOrdinal];
break;
case NSCalendarUnitQuarter:
val = [comps quarter];
break;
case NSCalendarUnitWeekOfMonth:
val = [comps weekOfMonth];
break;
case NSCalendarUnitWeekOfYear:
val = [comps weekOfYear];
break;
case NSCalendarUnitYearForWeekOfYear:
val = [comps yearForWeekOfYear];
break;
case NSCalendarUnitNanosecond:
val = [comps nanosecond];
break;
case NSCalendarUnitCalendar:
case NSCalendarUnitTimeZone:
// in these cases do nothing since they are undefined.
break;
}
return val;
}
- (NSDateComponents *) components: (NSUInteger) unitFlags
fromDate: (NSDate *) date
{
#if GS_USE_ICU == 1
NSDateComponents *comps;
UErrorCode err = U_ZERO_ERROR;
UDate udate;
udate = (UDate)floor([date timeIntervalSince1970] * SECOND_TO_MILLI);
ucal_setMillis(my->cal, udate, &err);
if (U_FAILURE(err))
{
return nil;
}
comps = [[NSDateComponents alloc] init];
if (unitFlags & NSCalendarUnitEra)
{
[comps setEra: ucal_get(my->cal, UCAL_ERA, &err)];
}
if (unitFlags & NSCalendarUnitYear)
{
[comps setYear: ucal_get(my->cal, UCAL_YEAR, &err)];
}
if (unitFlags & NSCalendarUnitMonth)
{
[comps setMonth: ucal_get(my->cal, UCAL_MONTH, &err) + 1];
}
if (unitFlags & NSCalendarUnitDay)
{
[comps setDay: ucal_get(my->cal, UCAL_DAY_OF_MONTH, &err)];
}
if (unitFlags & NSCalendarUnitHour)
{
[comps setHour: ucal_get(my->cal, UCAL_HOUR_OF_DAY, &err)];
}
if (unitFlags & NSCalendarUnitMinute)
{
[comps setMinute: ucal_get(my->cal, UCAL_MINUTE, &err)];
}
if (unitFlags & NSCalendarUnitSecond)
{
[comps setSecond: ucal_get(my->cal, UCAL_SECOND, &err)];
}
if (unitFlags & (NSWeekCalendarUnit | NSCalendarUnitWeekOfYear))
{
[comps setWeek: ucal_get(my->cal, UCAL_WEEK_OF_YEAR, &err)];
}
if (unitFlags & NSCalendarUnitWeekday)
{
[comps setWeekday: ucal_get(my->cal, UCAL_DAY_OF_WEEK, &err)];
}
if (unitFlags & NSCalendarUnitWeekdayOrdinal)
{
[comps setWeekdayOrdinal:
ucal_get(my->cal, UCAL_DAY_OF_WEEK_IN_MONTH, &err)];
}
if (unitFlags & NSCalendarUnitQuarter)
{
[comps setQuarter: (ucal_get(my->cal, UCAL_MONTH, &err) + 3) / 3];
}
if (unitFlags & NSCalendarUnitWeekOfMonth)
{
[comps setWeekOfMonth: ucal_get(my->cal, UCAL_WEEK_OF_MONTH, &err)];
}
if (unitFlags & NSCalendarUnitYearForWeekOfYear)
{
[comps setYearForWeekOfYear: ucal_get(my->cal, UCAL_YEAR_WOY, &err)];
}
if (unitFlags & NSCalendarUnitNanosecond)
{
[comps setNanosecond: ucal_get(my->cal, UCAL_MILLISECOND, &err) * MILLI_TO_NANO];
}
return AUTORELEASE(comps);
#else
return nil;
#endif
}
/*
* Convenience macro for field extraction.
* TODO: We need to implement NSWrapCalendarComponents,
* but it is unclear how that actually works.
*/
#define COMPONENT_DIFF( \
cal, units, components, toDate, nsunit, setSel, uunit, err) \
do \
{ \
if (nsunit == (units & nsunit)) \
{ \
int32_t uunit ## Diff \
= ucal_getFieldDifference(cal, toDate, uunit, &err); \
if (U_FAILURE(err)) \
{ \
RELEASE(components); \
return nil; \
} \
[components setSel uunit ## Diff]; \
} \
} while (0)
- (NSDateComponents *) components: (NSUInteger) unitFlags
fromDate: (NSDate *) startingDate
toDate: (NSDate *) resultDate
options: (NSUInteger) opts
{
#if GS_USE_ICU == 1 && (U_ICU_VERSION_MAJOR_NUM > 4 \
|| (U_ICU_VERSION_MAJOR_NUM == 4 && U_ICU_VERSION_MINOR_NUM >= 8) \
|| defined(HAVE_ICU_H))
NSDateComponents *comps = nil;
UErrorCode err = U_ZERO_ERROR;
UDate udateFrom = (UDate)floor([startingDate timeIntervalSince1970] * SECOND_TO_MILLI);
UDate udateTo = (UDate)floor([resultDate timeIntervalSince1970] * SECOND_TO_MILLI);
ucal_setMillis(my->cal, udateFrom, &err);
if (U_FAILURE(err))
{
return nil;
}
comps = [[NSDateComponents alloc] init];
/*
* Since the ICU field difference function automatically advances
* the calendar as appropriate, we need to process the units from
* the largest to the smallest.
*/
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitEra, setEra:, UCAL_ERA, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitYear, setYear:, UCAL_YEAR, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitMonth, setMonth:, UCAL_MONTH, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitWeekOfYear, setWeek:, UCAL_WEEK_OF_YEAR, err);
if (!(unitFlags & NSCalendarUnitWeekOfYear))
{
/* We must avoid setting the same unit twice (it would be zero because
* of the automatic advancement.
*/
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSWeekCalendarUnit, setWeek:, UCAL_WEEK_OF_YEAR, err);
}
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitWeekOfMonth, setWeekOfMonth:, UCAL_WEEK_OF_MONTH, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitDay, setDay:, UCAL_DAY_OF_MONTH, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitWeekdayOrdinal, setWeekdayOrdinal:,
UCAL_DAY_OF_WEEK_IN_MONTH, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitWeekday, setWeekday:, UCAL_DAY_OF_WEEK, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitHour, setHour:, UCAL_HOUR_OF_DAY, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitMinute, setMinute:, UCAL_MINUTE, err);
COMPONENT_DIFF(my->cal, unitFlags, comps, udateTo,
NSCalendarUnitSecond, setSecond:, UCAL_SECOND, err);
if (unitFlags & NSCalendarUnitNanosecond)
{
int32_t ms;
ms = ucal_getFieldDifference(my->cal, udateTo, UCAL_MILLISECOND, &err);
if (U_FAILURE(err))
{
RELEASE(comps);
return nil;
}
[comps setNanosecond: ms * MILLI_TO_NANO];
}
return AUTORELEASE(comps);
#else
return nil;
#endif
}
#undef COMPONENT_DIFF
#define _ADD_COMPONENT(c, n) \
if (opts & NSWrapCalendarComponents) \
ucal_roll(my->cal, c, n, &err); \
else \
ucal_add(my->cal, c, n, &err); \
if (U_FAILURE(err)) \
{ \
return nil; \
}
- (NSDate *) dateByAddingComponents: (NSDateComponents *) comps
toDate: (NSDate *) date
options: (NSUInteger) opts
{
#if GS_USE_ICU == 1
NSInteger amount;
UErrorCode err = U_ZERO_ERROR;
UDate udate;
[self _resetCalendar];
udate = (UDate)([date timeIntervalSince1970] * SECOND_TO_MILLI);
ucal_setMillis(my->cal, udate, &err);
if ((amount = [comps era]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_ERA, (int32_t)amount);
}
if ((amount = [comps year]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_YEAR, (int32_t)amount);
}
if ((amount = [comps month]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_MONTH, (int32_t)amount);
}
if ((amount = [comps day]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_DAY_OF_MONTH, (int32_t)amount);
}
if ((amount = [comps hour]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_HOUR_OF_DAY, (int32_t)amount);
}
if ((amount = [comps minute]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_MINUTE, (int32_t)amount);
}
if ((amount = [comps second]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_SECOND, (int32_t)amount);
}
if ((amount = [comps week]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_WEEK_OF_YEAR, (int32_t)amount);
}
if ((amount = [comps weekday]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_DAY_OF_WEEK, (int32_t)amount);
}
if ((amount = [comps weekOfMonth]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_WEEK_OF_MONTH, (int32_t)amount);
}
if ((amount = [comps yearForWeekOfYear]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_YEAR_WOY, (int32_t)amount);
}
if ((amount = [comps nanosecond]) != NSDateComponentUndefined)
{
_ADD_COMPONENT(UCAL_MILLISECOND, (int32_t)(amount / MILLI_TO_NANO));
}
udate = ucal_getMillis(my->cal, &err);
if (U_FAILURE(err))
{
return nil;
}
return [NSDate dateWithTimeIntervalSince1970: (udate / SECOND_TO_MILLI)];
#else
return nil;
#endif
}
#undef _ADD_COMPONENT
- (NSDate *) dateFromComponents: (NSDateComponents *) comps
{
#if GS_USE_ICU == 1
NSInteger amount;
UDate udate;
UErrorCode err = U_ZERO_ERROR;
void *cal;
NSTimeZone *timeZone;
timeZone = [comps timeZone];
if (timeZone == nil)
{
timeZone = [self timeZone];
}
cal = [self _openCalendarFor: timeZone];
if (!cal)
{
return nil;
}
ucal_clear(cal);
if ((amount = [comps era]) != NSDateComponentUndefined)
{
ucal_set(cal, UCAL_ERA, (int32_t)amount);
}
if ((amount = [comps year]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_YEAR, (int32_t)amount);
}
if ((amount = [comps month]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_MONTH, amount - 1);
}
if ((amount = [comps day]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_DAY_OF_MONTH, (int32_t)amount);
}
if ((amount = [comps hour]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_HOUR_OF_DAY, (int32_t)amount);
}
if ((amount = [comps minute]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_MINUTE, (int32_t)amount);
}
if ((amount = [comps second]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_SECOND, (int32_t)amount);
}
if ((amount = [comps week]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_WEEK_OF_YEAR, (int32_t)amount);
}
if ((amount = [comps weekday]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_DAY_OF_WEEK, (int32_t)amount);
}
if ((amount = [comps weekdayOrdinal]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_DAY_OF_WEEK_IN_MONTH, (int32_t)amount);
}
if ((amount = [comps weekOfMonth]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_WEEK_OF_MONTH, (int32_t)amount);
}
if ((amount = [comps yearForWeekOfYear]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_YEAR_WOY, (int32_t)amount);
}
if ((amount = [comps nanosecond]) != NSDateComponentUndefined)
{
ucal_set (cal, UCAL_MILLISECOND, (int32_t)(amount / MILLI_TO_NANO));
}
udate = ucal_getMillis(cal, &err);
ucal_close(cal);
if (U_FAILURE(err))
{
return nil;
}
return [NSDate dateWithTimeIntervalSince1970: (udate / SECOND_TO_MILLI)];
#else
return nil;
#endif
}
- (NSLocale *) locale
{
return AUTORELEASE([[NSLocale alloc] initWithLocaleIdentifier: my->localeID]);
}
- (void) setLocale: (NSLocale *) locale
{
// It's much easier to keep a copy of the NSLocale's string representation
// than to have to build it everytime we have to open a UCalendar.
[self _setLocaleIdentifier: [self _localeIDWithLocale: locale]];
}
- (NSUInteger) firstWeekday
{
return my->firstWeekday;
}
- (void) setFirstWeekday: (NSUInteger)weekday
{
my->firstWeekday = weekday;
#if GS_USE_ICU == 1
ucal_setAttribute(my->cal, UCAL_FIRST_DAY_OF_WEEK, my->firstWeekday);
#endif
}
- (NSUInteger) minimumDaysInFirstWeek
{
return my->minimumDaysInFirstWeek;
}
- (void) setMinimumDaysInFirstWeek: (NSUInteger)mdw
{
my->minimumDaysInFirstWeek = (int32_t)mdw;
#if GS_USE_ICU == 1
ucal_setAttribute(my->cal, UCAL_MINIMAL_DAYS_IN_FIRST_WEEK,
my->minimumDaysInFirstWeek);
#endif
}
- (NSTimeZone *) timeZone
{
return my->tz;
}
- (void) setTimeZone: (NSTimeZone *) tz
{
if ([tz isEqual: my->tz])
{
return;
}
ASSIGN(my->tz, tz);
[self _resetCalendar];
}
- (NSRange) maximumRangeOfUnit: (NSCalendarUnit) unit
{
NSRange result = NSMakeRange (0, 0);
#if GS_USE_ICU == 1
UCalendarDateFields dateField;
UErrorCode err = U_ZERO_ERROR;
[self _resetCalendar];
dateField = _NSCalendarUnitToDateField(unit);
if (dateField != (UCalendarDateFields)-1)
{
// We really don't care if there are any errors...
result.location =
(NSUInteger)ucal_getLimit(my->cal, dateField, UCAL_MINIMUM, &err);
result.length =
(NSUInteger)ucal_getLimit(my->cal, dateField, UCAL_MAXIMUM, &err)
- result.location + 1;
// ICU's month is 0-based, while NSCalendar is 1-based
if (dateField == UCAL_MONTH)
{
result.location += 1;
}
}
#endif
return result;
}
- (NSRange) minimumRangeofUnit: (NSCalendarUnit) unit
{
NSRange result = NSMakeRange (0, 0);
#if GS_USE_ICU == 1
UCalendarDateFields dateField;
UErrorCode err = U_ZERO_ERROR;
[self _resetCalendar];
dateField = _NSCalendarUnitToDateField(unit);
if (dateField != (UCalendarDateFields)-1)
{
// We really don't care if there are any errors...
result.location =
(NSUInteger)ucal_getLimit(my->cal, dateField, UCAL_GREATEST_MINIMUM, &err);
result.length =
(NSUInteger)ucal_getLimit(my->cal, dateField, UCAL_LEAST_MAXIMUM, &err)
- result.location + 1;
// ICU's month is 0-based, while NSCalendar is 1-based
if (dateField == UCAL_MONTH)
{
result.location += 1;
}
}
#endif
return result;
}
- (NSUInteger) ordinalityOfUnit: (NSCalendarUnit) smaller
inUnit: (NSCalendarUnit) larger
forDate: (NSDate *) date
{
return 0;
}
- (NSRange) rangeOfUnit: (NSCalendarUnit) smaller
inUnit: (NSCalendarUnit) larger
forDate: (NSDate *) date
{
return NSMakeRange (0, 0);
}
- (BOOL) rangeOfUnit: (NSCalendarUnit) unit
startDate: (NSDate **) datep
interval: (NSTimeInterval *)tip
forDate: (NSDate *)date
{
return NO;
}
- (BOOL) isEqual: (id) obj
{
#if GS_USE_ICU == 1
return (BOOL)ucal_equivalentTo(my->cal, [obj _UCalendar]);
#else
if ([obj isKindOfClass: [self class]])
{
if (![my->identifier isEqual: [obj calendarIdentifier]])
return NO;
if (![my->localeID isEqual: [obj localeIdentifier]])
return NO;
if (![my->tz isEqual: [obj timeZone]])
return NO;
if (my->firstWeekday != [obj firstWeekday])
return NO;
if (my->minimumDaysInFirstWeek != [obj minimumDaysInFirstWeek])
return NO;
return YES;
}
return NO;
#endif
}
- (void) getEra: (NSInteger *)eraValuePointer
year: (NSInteger *)yearValuePointer
month: (NSInteger *)monthValuePointer
day: (NSInteger *)dayValuePointer
fromDate: (NSDate *)date
{
#if GS_USE_ICU == 1
UErrorCode err = U_ZERO_ERROR;
UDate udate;
[self _resetCalendar];
ucal_clear (my->cal);
udate = (UDate)floor([date timeIntervalSince1970] * 1000.0);
ucal_setMillis (my->cal, udate, &err);
if (U_FAILURE(err))
return;
if (eraValuePointer != NULL)
*eraValuePointer = ucal_get(my->cal, UCAL_ERA, &err);
if (yearValuePointer != NULL)
*yearValuePointer = ucal_get(my->cal, UCAL_YEAR, &err);
if (monthValuePointer != NULL)
*monthValuePointer = ucal_get(my->cal, UCAL_MONTH, &err) + 1;
if (dayValuePointer != NULL)
*dayValuePointer = ucal_get(my->cal, UCAL_DAY_OF_MONTH, &err);
#endif
}
- (void) getHour: (NSInteger *)hourValuePointer
minute: (NSInteger *)minuteValuePointer
second: (NSInteger *)secondValuePointer
nanosecond: (NSInteger *)nanosecondValuePointer
fromDate: (NSDate *)date
{
#if GS_USE_ICU == 1
UErrorCode err = U_ZERO_ERROR;
UDate udate;
[self _resetCalendar];
ucal_clear (my->cal);
udate = (UDate)floor([date timeIntervalSince1970] * 1000.0);
ucal_setMillis (my->cal, udate, &err);
if (U_FAILURE(err))
return;
if (hourValuePointer != NULL)
*hourValuePointer = ucal_get(my->cal, UCAL_HOUR_OF_DAY, &err);
if (minuteValuePointer != NULL)
*minuteValuePointer = ucal_get(my->cal, UCAL_MINUTE, &err);
if (secondValuePointer != NULL)
*secondValuePointer = ucal_get(my->cal, UCAL_SECOND, &err);
if (nanosecondValuePointer != NULL)
*nanosecondValuePointer = ucal_get(my->cal, UCAL_MILLISECOND, &err) * 1000;
#endif
}
- (void) getEra: (NSInteger *)eraValuePointer
yearForWeekOfYear: (NSInteger *)yearValuePointer
weekOfYear: (NSInteger *)weekValuePointer
weekday: (NSInteger *)weekdayValuePointer
fromDate: (NSDate *)date
{
#if GS_USE_ICU == 1
UErrorCode err = U_ZERO_ERROR;
UDate udate;
[self _resetCalendar];
ucal_clear (my->cal);
udate = (UDate)floor([date timeIntervalSince1970] * 1000.0);
ucal_setMillis (my->cal, udate, &err);
if (U_FAILURE(err))
return;
if (eraValuePointer != NULL)
*eraValuePointer = ucal_get(my->cal, UCAL_ERA, &err);
if (yearValuePointer != NULL)
*yearValuePointer = ucal_get(my->cal, UCAL_YEAR_WOY, &err);
if (weekValuePointer != NULL)
*weekValuePointer = ucal_get(my->cal, UCAL_WEEK_OF_YEAR, &err);
if (weekdayValuePointer != NULL)
*weekdayValuePointer = ucal_get(my->cal, UCAL_DAY_OF_WEEK, &err);
#endif
}
- (void) encodeWithCoder: (NSCoder*)encoder
{
[encoder encodeObject: my->identifier];
[encoder encodeObject: my->localeID];
[encoder encodeObject: my->tz];
}