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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2003-2013, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*
* File BUDDHCAL.CPP
*
* Modification History:
* 05/13/2003 srl copied from gregocal.cpp
*
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "buddhcal.h"
#include "gregoimp.h"
#include "unicode/gregocal.h"
#include "umutex.h"
#include <float.h>
U_NAMESPACE_BEGIN
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(BuddhistCalendar)
//static const int32_t kMaxEra = 0; // only 1 era
static const int32_t kBuddhistEraStart = -543; // 544 BC (Gregorian)
static const int32_t kGregorianEpoch = 1970; // used as the default value of EXTENDED_YEAR
BuddhistCalendar::BuddhistCalendar(const Locale& aLocale, UErrorCode& success)
: GregorianCalendar(aLocale, success)
{
setTimeInMillis(getNow(), success); // Call this again now that the vtable is set up properly.
}
BuddhistCalendar::~BuddhistCalendar()
{
}
BuddhistCalendar::BuddhistCalendar(const BuddhistCalendar& source)
: GregorianCalendar(source)
{
}
BuddhistCalendar& BuddhistCalendar::operator= ( const BuddhistCalendar& right)
{
GregorianCalendar::operator=(right);
return *this;
}
BuddhistCalendar* BuddhistCalendar::clone() const
{
return new BuddhistCalendar(*this);
}
const char *BuddhistCalendar::getType() const
{
return "buddhist";
}
int32_t BuddhistCalendar::handleGetExtendedYear(UErrorCode& status)
{
if (U_FAILURE(status)) {
return 0;
}
// EXTENDED_YEAR in BuddhistCalendar is a Gregorian year.
// The default value of EXTENDED_YEAR is 1970 (Buddhist 2513)
if (newerField(UCAL_EXTENDED_YEAR, UCAL_YEAR) == UCAL_EXTENDED_YEAR) {
return internalGet(UCAL_EXTENDED_YEAR, kGregorianEpoch);
}
// extended year is a gregorian year, where 1 = 1AD, 0 = 1BC, -1 = 2BC, etc
int32_t year = internalGet(UCAL_YEAR, kGregorianEpoch - kBuddhistEraStart);
if (uprv_add32_overflow(year, kBuddhistEraStart, &year)) {
status = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
return year;
}
void BuddhistCalendar::handleComputeFields(int32_t julianDay, UErrorCode& status)
{
GregorianCalendar::handleComputeFields(julianDay, status);
int32_t y = internalGet(UCAL_EXTENDED_YEAR) - kBuddhistEraStart;
internalSet(UCAL_ERA, 0);
internalSet(UCAL_YEAR, y);
}
int32_t BuddhistCalendar::handleGetLimit(UCalendarDateFields field, ELimitType limitType) const
{
if(field == UCAL_ERA) {
return BE;
}
return GregorianCalendar::handleGetLimit(field,limitType);
}
IMPL_SYSTEM_DEFAULT_CENTURY(BuddhistCalendar, "@calendar=buddhist")
U_NAMESPACE_END
#endif
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