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00024 #ifndef GREGOCAL_H
00025 #define GREGOCAL_H
00026
00027 #include "unicode/utypes.h"
00028
00029 #if !UCONFIG_NO_FORMATTING
00030
00031 #include "unicode/calendar.h"
00032
00038 U_NAMESPACE_BEGIN
00039
00149 class U_I18N_API GregorianCalendar: public Calendar {
00150 public:
00151
00156 enum EEras {
00157 BC,
00158 AD
00159 };
00160
00169 GregorianCalendar(UErrorCode& success);
00170
00181 GregorianCalendar(TimeZone* zoneToAdopt, UErrorCode& success);
00182
00192 GregorianCalendar(const TimeZone& zone, UErrorCode& success);
00193
00203 GregorianCalendar(const Locale& aLocale, UErrorCode& success);
00204
00216 GregorianCalendar(TimeZone* zoneToAdopt, const Locale& aLocale, UErrorCode& success);
00217
00228 GregorianCalendar(const TimeZone& zone, const Locale& aLocale, UErrorCode& success);
00229
00242 GregorianCalendar(int32_t year, int32_t month, int32_t date, UErrorCode& success);
00243
00258 GregorianCalendar(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, UErrorCode& success);
00259
00275 GregorianCalendar(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, int32_t second, UErrorCode& success);
00276
00281 virtual ~GregorianCalendar();
00282
00288 GregorianCalendar(const GregorianCalendar& source);
00289
00295 GregorianCalendar& operator=(const GregorianCalendar& right);
00296
00302 virtual Calendar* clone(void) const;
00303
00313 void setGregorianChange(UDate date, UErrorCode& success);
00314
00323 UDate getGregorianChange(void) const;
00324
00340 UBool isLeapYear(int32_t year) const;
00341
00349 virtual UBool isEquivalentTo(const Calendar& other) const;
00350
00362 virtual void roll(EDateFields field, int32_t amount, UErrorCode& status);
00363
00375 virtual void roll(UCalendarDateFields field, int32_t amount, UErrorCode& status);
00376
00384 int32_t getActualMinimum(EDateFields field) const;
00385
00394 int32_t getActualMinimum(EDateFields field, UErrorCode& status) const;
00395
00404 int32_t getActualMinimum(UCalendarDateFields field, UErrorCode &status) const;
00405
00415 int32_t getActualMaximum(EDateFields field) const;
00416
00427 virtual int32_t getActualMaximum(UCalendarDateFields field, UErrorCode& status) const;
00428
00438 virtual UBool inDaylightTime(UErrorCode& status) const;
00439
00440 public:
00441
00452 virtual UClassID getDynamicClassID(void) const;
00453
00465 static UClassID U_EXPORT2 getStaticClassID(void);
00466
00473 virtual const char * getType() const;
00474
00475 protected:
00476
00483 private:
00484 GregorianCalendar();
00485
00486 protected:
00493 virtual int32_t internalGetEra() const;
00494
00508 virtual int32_t handleComputeMonthStart(int32_t eyear, int32_t month,
00509 UBool useMonth) const;
00510
00519 virtual int32_t handleComputeJulianDay(UCalendarDateFields bestField) ;
00520
00528 virtual int32_t handleGetMonthLength(int32_t extendedYear, int32_t month) const;
00529
00537 virtual int32_t handleGetYearLength(int32_t eyear) const;
00538
00545 virtual int32_t monthLength(int32_t month) const;
00546
00554 virtual int32_t monthLength(int32_t month, int32_t year) const;
00555
00562 int32_t yearLength(int32_t year) const;
00563
00569 int32_t yearLength(void) const;
00570
00578 void pinDayOfMonth(void);
00579
00587 virtual UDate getEpochDay(UErrorCode& status);
00588
00610 virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const;
00611
00620 virtual int32_t handleGetExtendedYear();
00621
00630 virtual int32_t handleGetExtendedYearFromWeekFields(int32_t yearWoy, int32_t woy);
00631
00632
00648 virtual void handleComputeFields(int32_t julianDay, UErrorCode &status);
00649
00650 private:
00658 static double computeJulianDayOfYear(UBool isGregorian, int32_t year,
00659 UBool& isLeap);
00660
00665 UBool validateFields(void) const;
00666
00670 UBool boundsCheck(int32_t value, UCalendarDateFields field) const;
00671
00681 int32_t aggregateStamp(int32_t stamp_a, int32_t stamp_b);
00682
00691 UDate fGregorianCutover;
00692
00696 int32_t fCutoverJulianDay;
00697
00703 UDate fNormalizedGregorianCutover;
00704
00709 int32_t fGregorianCutoverYear;
00710
00715 int32_t fGregorianCutoverJulianDay;
00716
00724 static double millisToJulianDay(UDate millis);
00725
00733 static UDate julianDayToMillis(double julian);
00734
00739 UBool fIsGregorian;
00740
00746 UBool fInvertGregorian;
00747
00748
00749 public:
00750
00755 virtual UBool haveDefaultCentury() const;
00756
00761 virtual UDate defaultCenturyStart() const;
00762
00767 virtual int32_t defaultCenturyStartYear() const;
00768
00769 private:
00776 static UDate fgSystemDefaultCenturyStart;
00777
00781 static int32_t fgSystemDefaultCenturyStartYear;
00782
00786 static const int32_t fgSystemDefaultCenturyYear;
00787
00791 static const UDate fgSystemDefaultCentury;
00792
00799 UDate internalGetDefaultCenturyStart(void) const;
00800
00807 int32_t internalGetDefaultCenturyStartYear(void) const;
00808
00813 static void initializeSystemDefaultCentury(void);
00814
00815 };
00816
00817 U_NAMESPACE_END
00818
00819 #endif
00820
00821 #endif // _GREGOCAL
00822
00823