diff options
Diffstat (limited to 'Build/source/libs/icu/icu-xetex/i18n/buddhcal.h')
-rw-r--r-- | Build/source/libs/icu/icu-xetex/i18n/buddhcal.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/i18n/buddhcal.h b/Build/source/libs/icu/icu-xetex/i18n/buddhcal.h new file mode 100644 index 00000000000..735f61890a7 --- /dev/null +++ b/Build/source/libs/icu/icu-xetex/i18n/buddhcal.h @@ -0,0 +1,243 @@ +/* + ******************************************************************************** + * Copyright (C) 2003-2007, 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 Calendar* clone(void) const; + +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(void) const; + + /** + * 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(void); + + /** + * return the calendar type, "buddhist". + * + * @return calendar type + * @internal + */ + virtual const char * getType() const; + +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(); + /** + * Subclasses may override this method to compute several fields + * specific to each calendar system. + * @internal + */ + virtual void handleComputeFields(int32_t julianDay, UErrorCode& status); + /** + * 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; + /** + * Return the Julian day number of day before the first day of the + * given month in the given extended year. Subclasses should override + * this method to implement their calendar system. + * @param eyear the extended year + * @param month the zero-based month, or 0 if useMonth is false + * @param useMonth if false, compute the day before the first day of + * the given year, otherwise, compute the day before the first day of + * the given month + * @param return the Julian day number of the day before the first + * day of the given month and year + * @internal + */ + virtual int32_t handleComputeMonthStart(int32_t eyear, int32_t month, + UBool useMonth) const; + + /** + * Returns TRUE because the Buddhist Calendar does have a default century + * @internal + */ + virtual UBool haveDefaultCentury() const; + + /** + * Returns the date of the start of the default century + * @return start of century - in milliseconds since epoch, 1970 + * @internal + */ + virtual UDate defaultCenturyStart() const; + + /** + * Returns the year in which the default century begins + * @internal + */ + virtual int32_t defaultCenturyStartYear() const; + + private: // default century stuff. + /** + * The system maintains a static default century start date. This is initialized + * the first time it is used. Before then, it is set to SYSTEM_DEFAULT_CENTURY to + * indicate an uninitialized state. Once the system default century date and year + * are set, they do not change. + */ + static UDate fgSystemDefaultCenturyStart; + + /** + * See documentation for systemDefaultCenturyStart. + */ + static int32_t fgSystemDefaultCenturyStartYear; + + /** + * Default value that indicates the defaultCenturyStartYear is unitialized + */ + static const int32_t fgSystemDefaultCenturyYear; + + /** + * start of default century, as a date + */ + static const UDate fgSystemDefaultCentury; + + /** + * Returns the beginning date of the 100-year window that dates + * with 2-digit years are considered to fall within. + */ + UDate internalGetDefaultCenturyStart(void) const; + + /** + * Returns the first year of the 100-year window that dates with + * 2-digit years are considered to fall within. + */ + int32_t internalGetDefaultCenturyStartYear(void) const; + + /** + * Initializes the 100-year window that dates with 2-digit years + * are considered to fall within so that its start date is 80 years + * before the current time. + */ + static void initializeSystemDefaultCentury(void); +}; + +U_NAMESPACE_END + +#endif /* #if !UCONFIG_NO_FORMATTING */ + +#endif // _GREGOCAL +//eof + |