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/*
*******************************************************************************
* Copyright (C) 2003 - 2008, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
#ifndef ETHPCCAL_H
#define ETHPCCAL_H
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/calendar.h"
#include "cecal.h"
U_NAMESPACE_BEGIN
/**
* Implement the Ethiopic calendar system.
* @internal
*/
class EthiopicCalendar : public CECalendar {
public:
/**
* Calendar type - use Amete Alem era for all the time or not
* @internal
*/
enum EEraType {
AMETE_MIHRET_ERA,
AMETE_ALEM_ERA
};
/**
* Useful constants for EthiopicCalendar.
* @internal
*/
enum EMonths {
/**
* Constant for መስከረም, the 1st month of the Ethiopic year.
*/
MESKEREM,
/**
* Constant for ጥቅምት, the 2nd month of the Ethiopic year.
*/
TEKEMT,
/**
* Constant for ኅዳር, the 3rd month of the Ethiopic year.
*/
HEDAR,
/**
* Constant for ታኅሣሥ, the 4th month of the Ethiopic year.
*/
TAHSAS,
/**
* Constant for ጥር, the 5th month of the Ethiopic year.
*/
TER,
/**
* Constant for የካቲት, the 6th month of the Ethiopic year.
*/
YEKATIT,
/**
* Constant for መጋቢት, the 7th month of the Ethiopic year.
*/
MEGABIT,
/**
* Constant for ሚያዝያ, the 8th month of the Ethiopic year.
*/
MIAZIA,
/**
* Constant for ግንቦት, the 9th month of the Ethiopic year.
*/
GENBOT,
/**
* Constant for ሰኔ, the 10th month of the Ethiopic year.
*/
SENE,
/**
* Constant for ሐምሌ, the 11th month of the Ethiopic year.
*/
HAMLE,
/**
* Constant for ነሐሴ, the 12th month of the Ethiopic year.
*/
NEHASSA,
/**
* Constant for ጳጉሜን, the 13th month of the Ethiopic year.
*/
PAGUMEN
};
enum EEras {
AMETE_ALEM, // Before the epoch
AMETE_MIHRET // After the epoch
};
/**
* Constructs a EthiopicCalendar 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 EthiopicCalendar object construction.
* Returns U_ZERO_ERROR if constructed successfully.
* @param type Whether this Ethiopic calendar use Amete Mihrret (default) or
* only use Amete Alem for all the time.
* @internal
*/
EthiopicCalendar(const Locale& aLocale, UErrorCode& success, EEraType type = AMETE_MIHRET_ERA);
/**
* Copy Constructor
* @internal
*/
EthiopicCalendar(const EthiopicCalendar& other);
/**
* Destructor.
* @internal
*/
virtual ~EthiopicCalendar();
/**
* Create and return a polymorphic copy of this calendar.
* @return return a polymorphic copy of this calendar.
* @internal
*/
virtual Calendar* clone() const;
/**
* return the calendar type, "ethiopic"
* @return calendar type
* @internal
*/
virtual const char * getType() const;
/**
* Set Alem or Mihret era.
* @param onOff Set Amete Alem era if true, otherwise set Amete Mihret era.
* @internal
*/
void setAmeteAlemEra (UBool onOff);
/**
* Return true if this calendar is set to the Amete Alem era.
* @return true if set to the Amete Alem era.
* @internal
*/
UBool isAmeteAlemEra() const;
protected:
//-------------------------------------------------------------------------
// Calendar framework
//-------------------------------------------------------------------------
/**
* Return the extended year defined by the current fields.
* @internal
*/
virtual int32_t handleGetExtendedYear();
/**
* Compute fields from the JD
* @internal
*/
virtual void handleComputeFields(int32_t julianDay, UErrorCode &status);
/**
* Calculate the limit for a specified type of limit and field
* @internal
*/
virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) 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;
/**
* Return the date offset from Julian
* @internal
*/
virtual int32_t getJDEpochOffset() const;
private:
/**
* 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;
/**
* 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);
/**
* When eraType is AMETE_ALEM_ERA, then this calendar use only AMETE_ALEM
* for the era. Otherwise (default), this calendar uses both AMETE_ALEM
* and AMETE_MIHRET.
*
* EXTENDED_YEAR AMETE_ALEM_ERA AMETE_MIHRET_ERA
* 0 Amete Alem 5500 Amete Alem 5500
* 1 Amete Mihret 1 Amete Alem 5501
*/
EEraType eraType;
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);
#if 0
// We do not want to introduce this API in ICU4C.
// It was accidentally introduced in ICU4J as a public API.
public:
//-------------------------------------------------------------------------
// Calendar system Conversion methods...
//-------------------------------------------------------------------------
/**
* Convert an Ethiopic year, month, and day to a Julian day.
*
* @param year the extended year
* @param month the month
* @param day the day
* @return Julian day
* @internal
*/
int32_t ethiopicToJD(int32_t year, int32_t month, int32_t day);
#endif
};
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif /* ETHPCCAL_H */
//eof
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