/** * <code>PersianCalendar</code> is a subclass of <code>Calendar</code> * that implements the Persian calendar. It is used as the official * calendar in Iran. This calendar is also known as the "Hijri Shamsi" * calendar, since it starts at the time of Mohammed's emigration (or * "hijra") to Medinah on Thursday, July 15, 622 AD (Julian) and is a * solar calendar system (or "shamsi"). * <p> * The Persian calendar is strictly solar, and thus a Persian year has twelve * solar months. A Persian year is about 365 days long, except in leap years * which is 366 days long. * <p> * The six first months of Persian Calendar are 31 days long. The next five * months are 30 days long. The last month is 29 days long in normal years, * and 30 days long in leap years. * * @see GregorianCalendar * * @author Mehran Mehr * @internal
*/ class PersianCalendar : public Calendar { public: //------------------------------------------------------------------------- // Constants... //------------------------------------------------------------------------- /** * Constants for the months * @internal
*/ enum EMonths { /** * Constant for Farvardin, the 1st month of the Persian year. * @internal
*/
FARVARDIN = 0,
/** * Constant for Ordibehesht, the 2nd month of the Persian year. * @internal
*/
ORDIBEHESHT = 1,
/** * Constant for Khordad, the 3rd month of the Persian year. * @internal
*/
KHORDAD = 2,
/** * Constant for Tir, the 4th month of the Persian year. * @internal
*/
TIR = 3,
/** * Constant for Mordad, the 5th month of the Persian year. * @internal
*/
MORDAD = 4,
/** * Constant for Shahrivar, the 6th month of the Persian year. * @internal
*/
SHAHRIVAR = 5,
/** * Constant for Mehr, the 7th month of the Persian year. * @internal
*/
MEHR = 6,
/** * Constant for Aban, the 8th month of the Persian year. * @internal
*/
ABAN = 7,
/** * Constant for Azar, the 9th month of the Persian year. * @internal
*/
AZAR = 8,
/** * Constant for Dei, the 10th month of the Persian year. * @internal
*/
DEI = 9,
/** * Constant for Bahman, the 11th month of the Persian year. * @internal
*/
BAHMAN = 10,
/** * Constant for Esfand, the 12th month of the Persian year. * @internal
*/
ESFAND = 11,
/** * Constructs a PersianCalendar 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 PersianCalendar object construction. * Returns U_ZERO_ERROR if constructed successfully. * @internal
*/
PersianCalendar(const Locale& aLocale, UErrorCode &success);
private: /** * Determine whether a year is a leap year in the Persian calendar
*/ static UBool isLeapYear(int32_t year);
/** * Return the day # on which the given year starts. Days are counted * from the Hijri epoch, origin 0.
*/
int32_t yearStart(int32_t year, UErrorCode& status);
/** * Return the day # on which the given month starts. Days are counted * from the Hijri epoch, origin 0. * * @param year The hijri shamsi year * @param year The hijri shamsi month, 0-based
*/
int32_t monthStart(int32_t year, int32_t month, UErrorCode& status) const;
/** * Return the length (in days) of the given month. * * @param year The hijri shamsi year * @param year The hijri shamsi month, 0-based * @internal
*/ virtual int32_t handleGetMonthLength(int32_t extendedYear, int32_t month, UErrorCode& status) const override;
/** * Return the number of days in the given Persian year * @internal
*/ virtual int32_t handleGetYearLength(int32_t extendedYear) const override;
//------------------------------------------------------------------------- // Functions for converting from field values to milliseconds.... //-------------------------------------------------------------------------
// Return JD of start of given month/year /** * @internal
*/ virtual int64_t handleComputeMonthStart(int32_t eyear, int32_t month, UBool useMonth, UErrorCode& status) const override;
//------------------------------------------------------------------------- // Functions for converting from milliseconds to field values //-------------------------------------------------------------------------
/** * Override Calendar to compute several fields specific to the Persian * calendar system. These are: * * <ul><li>ERA * <li>YEAR * <li>MONTH * <li>DAY_OF_MONTH * <li>DAY_OF_YEAR * <li>EXTENDED_YEAR</ul> * * The DAY_OF_WEEK and DOW_LOCAL fields are already set when this * method is called. The getGregorianXxx() methods return Gregorian * calendar equivalents for the given Julian day. * @internal
*/ virtualvoid handleComputeFields(int32_t julianDay, UErrorCode &status) override;
// UObject stuff public: /** * @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, "persian". * * @return calendar type * @internal
*/ virtualconstchar * getType() const override;
/** * @return The related Gregorian year; will be obtained by modifying the value * obtained by get from UCAL_EXTENDED_YEAR field * @internal
*/ virtual int32_t getRelatedYear(UErrorCode &status) const override;
/** * @param year The related Gregorian year to set; will be modified as necessary then * set in UCAL_EXTENDED_YEAR field * @internal
*/ virtualvoid setRelatedYear(int32_t year) override;
private:
PersianCalendar(); // default constructor not implemented
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