michael@0: /*
michael@0: *******************************************************************************
michael@0: * Copyright (C) 2003 - 2008, International Business Machines Corporation and  *
michael@0: * others. All Rights Reserved.                                                *
michael@0: *******************************************************************************
michael@0: */
michael@0: 
michael@0: #ifndef CECAL_H
michael@0: #define CECAL_H
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_FORMATTING
michael@0: 
michael@0: #include "unicode/calendar.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: /**
michael@0:  * Base class for EthiopicCalendar and CopticCalendar.
michael@0:  * @internal
michael@0:  */
michael@0: class U_I18N_API CECalendar : public Calendar {
michael@0: 
michael@0: protected:
michael@0:     //-------------------------------------------------------------------------
michael@0:     // Constructors...
michael@0:     //-------------------------------------------------------------------------
michael@0: 
michael@0:     /**
michael@0:      * Constructs a CECalendar based on the current time in the default time zone
michael@0:      * with the given locale with the Julian epoch offiset
michael@0:      *
michael@0:      * @param aLocale  The given locale.
michael@0:      * @param success  Indicates the status of CECalendar object construction.
michael@0:      *                 Returns U_ZERO_ERROR if constructed successfully.
michael@0:      * @internal
michael@0:      */
michael@0:     CECalendar(const Locale& aLocale, UErrorCode& success);
michael@0: 
michael@0:     /**
michael@0:      * Copy Constructor
michael@0:      * @internal
michael@0:      */
michael@0:     CECalendar (const CECalendar& other);
michael@0: 
michael@0:     /**
michael@0:      * Destructor.
michael@0:      * @internal
michael@0:      */
michael@0:     virtual ~CECalendar();
michael@0: 
michael@0:     /**
michael@0:      * Default assignment operator
michael@0:      * @param right    Calendar object to be copied
michael@0:      * @internal
michael@0:      */
michael@0:     CECalendar& operator=(const CECalendar& right);
michael@0: 
michael@0: protected:
michael@0:     //-------------------------------------------------------------------------
michael@0:     // Calendar framework
michael@0:     //-------------------------------------------------------------------------
michael@0: 
michael@0:     /**
michael@0:      * Return JD of start of given month/extended year
michael@0:      * @internal
michael@0:      */
michael@0:     virtual int32_t handleComputeMonthStart(int32_t eyear, int32_t month, UBool useMonth) const;
michael@0: 
michael@0:     /**
michael@0:      * Calculate the limit for a specified type of limit and field
michael@0:      * @internal
michael@0:      */
michael@0:     virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const;
michael@0: 
michael@0:     /**
michael@0:      * (Overrides Calendar) Return true if the current date for this Calendar is in
michael@0:      * Daylight Savings Time. Recognizes DST_OFFSET, if it is set.
michael@0:      *
michael@0:      * @param status Fill-in parameter which receives the status of this operation.
michael@0:      * @return   True if the current date for this Calendar is in Daylight Savings Time,
michael@0:      *           false, otherwise.
michael@0:      * @internal
michael@0:      */
michael@0:     virtual UBool inDaylightTime(UErrorCode&) const;
michael@0: 
michael@0:     /**
michael@0:      * Returns TRUE because Coptic/Ethiopic Calendar does have a default century
michael@0:      * @internal
michael@0:      */
michael@0:     virtual UBool haveDefaultCentury() const;
michael@0: 
michael@0: protected:
michael@0:     /**
michael@0:      * The Coptic and Ethiopic calendars differ only in their epochs.
michael@0:      * This method must be implemented by CECalendar subclasses to
michael@0:      * return the date offset from Julian
michael@0:      * @internal
michael@0:      */
michael@0:     virtual int32_t getJDEpochOffset() const = 0;
michael@0: 
michael@0:     /**
michael@0:      * Convert an Coptic/Ethiopic year, month, and day to a Julian day.
michael@0:      *
michael@0:      * @param year the extended year
michael@0:      * @param month the month
michael@0:      * @param day the day
michael@0:      * @param jdEpochOffset the epoch offset from Julian epoch
michael@0:      * @return Julian day
michael@0:      * @internal
michael@0:      */
michael@0:     static int32_t ceToJD(int32_t year, int32_t month, int32_t date,
michael@0:         int32_t jdEpochOffset);
michael@0: 
michael@0:     /**
michael@0:      * Convert a Julian day to an Coptic/Ethiopic year, month and day
michael@0:      *
michael@0:      * @param julianDay the Julian day
michael@0:      * @param jdEpochOffset the epoch offset from Julian epoch
michael@0:      * @param year receives the extended year
michael@0:      * @param month receives the month
michael@0:      * @param date receives the day
michael@0:      * @internal
michael@0:      */
michael@0:     static void jdToCE(int32_t julianDay, int32_t jdEpochOffset,
michael@0:         int32_t& year, int32_t& month, int32_t& day);
michael@0: };
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: #endif /* #if !UCONFIG_NO_FORMATTING */
michael@0: #endif
michael@0: //eof