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Diffstat (limited to 'intl/icu/source/i18n/buddhcal.h')
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diff --git a/intl/icu/source/i18n/buddhcal.h b/intl/icu/source/i18n/buddhcal.h new file mode 100644 index 0000000000..01b59341c1 --- /dev/null +++ b/intl/icu/source/i18n/buddhcal.h @@ -0,0 +1,187 @@ +// © 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 "unicode/utypes.h" + +#if !UCONFIG_NO_FORMATTING + +#include "unicode/calendar.h" +#include "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 + |