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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.H
*
* Modification History:
*
* Date Name Description
* 05/13/2003 srl copied from gregocal.h
********************************************************************************
*/
#ifndef BUDDHCAL_H
#define BUDDHCAL_H
#include <_foundation_unicode/utypes.h>
#if !UCONFIG_NO_FORMATTING
#include <_foundation_unicode/calendar.h>
#include <_foundation_unicode/gregocal.h>
U_NAMESPACE_BEGIN
/**
* Concrete class which provides the Buddhist calendar.
* <P>
* <code>BuddhistCalendar</code> is a subclass of <code>GregorianCalendar</code>
* that numbers years since the birth of the Buddha. This is the civil calendar
* in some predominantly Buddhist countries such as Thailand, and it is used for
* religious purposes elsewhere.
* <p>
* The Buddhist calendar is identical to the Gregorian calendar in all respects
* except for the year and era. Years are numbered since the birth of the
* Buddha in 543 BC (Gregorian), so that 1 AD (Gregorian) is equivalent to 544
* BE (Buddhist Era) and 1998 AD is 2541 BE.
* <p>
* The Buddhist Calendar has only one allowable era: <code>BE</code>. If the
* calendar is not in lenient mode (see <code>setLenient</code>), dates before
* 1/1/1 BE are rejected as an illegal argument.
* <p>
* @internal
*/
class BuddhistCalendar : public GregorianCalendar {
public:
/**
* Useful constants for BuddhistCalendar. Only one Era.
* @internal
*/
enum EEras {
BE
};
/**
* Constructs a BuddhistCalendar based on the current time in the default time zone
* with the given locale.
*
* @param aLocale The given locale.
* @param success Indicates the status of BuddhistCalendar object construction.
* Returns U_ZERO_ERROR if constructed successfully.
* @internal
*/
BuddhistCalendar(const Locale& aLocale, UErrorCode& success);
/**
* Destructor
* @internal
*/
virtual ~BuddhistCalendar();
/**
* Copy constructor
* @param source the object to be copied.
* @internal
*/
BuddhistCalendar(const BuddhistCalendar& source);
/**
* Default assignment operator
* @param right the object to be copied.
* @internal
*/
BuddhistCalendar& operator=(const BuddhistCalendar& right);
/**
* Create and return a polymorphic copy of this calendar.
* @return return a polymorphic copy of this calendar.
* @internal
*/
virtual BuddhistCalendar* clone() const override;
public:
/**
* Override Calendar Returns a unique class ID POLYMORPHICALLY. Pure virtual
* override. This method is to implement a simple version of RTTI, since not all C++
* compilers support genuine RTTI. Polymorphic operator==() and clone() methods call
* this method.
*
* @return The class ID for this object. All objects of a given class have the
* same class ID. Objects of other classes have different class IDs.
* @internal
*/
virtual UClassID getDynamicClassID() const override;
/**
* Return the class ID for this class. This is useful only for comparing to a return
* value from getDynamicClassID(). For example:
*
* Base* polymorphic_pointer = createPolymorphicObject();
* if (polymorphic_pointer->getDynamicClassID() ==
* Derived::getStaticClassID()) ...
*
* @return The class ID for all objects of this class.
* @internal
*/
U_I18N_API static UClassID U_EXPORT2 getStaticClassID();
/**
* return the calendar type, "buddhist".
*
* @return calendar type
* @internal
*/
virtual const char * getType() const override;
private:
BuddhistCalendar(); // default constructor not implemented
protected:
/**
* Return the extended year defined by the current fields. This will
* use the UCAL_EXTENDED_YEAR field or the UCAL_YEAR and supra-year fields (such
* as UCAL_ERA) specific to the calendar system, depending on which set of
* fields is newer.
* @return the extended year
* @internal
*/
virtual int32_t handleGetExtendedYear() override;
/**
* Subclasses may override this method to compute several fields
* specific to each calendar system.
* @internal
*/
virtual void handleComputeFields(int32_t julianDay, UErrorCode& status) override;
/**
* Subclass API for defining limits of different types.
* @param field one of the field numbers
* @param limitType one of <code>MINIMUM</code>, <code>GREATEST_MINIMUM</code>,
* <code>LEAST_MAXIMUM</code>, or <code>MAXIMUM</code>
* @internal
*/
virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const override;
/**
* Returns true because the Buddhist Calendar does have a default century
* @internal
*/
virtual UBool haveDefaultCentury() const override;
/**
* Returns the date of the start of the default century
* @return start of century - in milliseconds since epoch, 1970
* @internal
*/
virtual UDate defaultCenturyStart() const override;
/**
* Returns the year in which the default century begins
* @internal
*/
virtual int32_t defaultCenturyStartYear() const override;
};
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif // _GREGOCAL
//eof
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