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Unified Diff: public/i18n/unicode/gregocal.h

Issue 18836004: Move ICU headers from public/{common,i18n} to source/{common,i18n} (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu46.git@master
Patch Set: same as ps #3. retry uploading Created 7 years, 5 months ago
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Index: public/i18n/unicode/gregocal.h
diff --git a/public/i18n/unicode/gregocal.h b/public/i18n/unicode/gregocal.h
deleted file mode 100644
index c17b6fe97d63ca33ad5db3265558a8430e821e19..0000000000000000000000000000000000000000
--- a/public/i18n/unicode/gregocal.h
+++ /dev/null
@@ -1,823 +0,0 @@
-/*
-* Copyright (C) 1997-2009, International Business Machines Corporation and others.
-* All Rights Reserved.
-********************************************************************************
-*
-* File GREGOCAL.H
-*
-* Modification History:
-*
-* Date Name Description
-* 04/22/97 aliu Overhauled header.
-* 07/28/98 stephen Sync with JDK 1.2
-* 09/04/98 stephen Re-sync with JDK 8/31 putback
-* 09/14/98 stephen Changed type of kOneDay, kOneWeek to double.
-* Fixed bug in roll()
-* 10/15/99 aliu Fixed j31, incorrect WEEK_OF_YEAR computation.
-* Added documentation of WEEK_OF_YEAR computation.
-* 10/15/99 aliu Fixed j32, cannot set date to Feb 29 2000 AD.
-* {JDK bug 4210209 4209272}
-* 11/07/2003 srl Update, clean up documentation.
-********************************************************************************
-*/
-
-#ifndef GREGOCAL_H
-#define GREGOCAL_H
-
-#include "unicode/utypes.h"
-
-#if !UCONFIG_NO_FORMATTING
-
-#include "unicode/calendar.h"
-
-/**
- * \file
- * \brief C++ API: Concrete class which provides the standard calendar.
- */
-
-U_NAMESPACE_BEGIN
-
-/**
- * Concrete class which provides the standard calendar used by most of the world.
- * <P>
- * The standard (Gregorian) calendar has 2 eras, BC and AD.
- * <P>
- * This implementation handles a single discontinuity, which corresponds by default to
- * the date the Gregorian calendar was originally instituted (October 15, 1582). Not all
- * countries adopted the Gregorian calendar then, so this cutover date may be changed by
- * the caller.
- * <P>
- * Prior to the institution of the Gregorian Calendar, New Year's Day was March 25. To
- * avoid confusion, this Calendar always uses January 1. A manual adjustment may be made
- * if desired for dates that are prior to the Gregorian changeover and which fall
- * between January 1 and March 24.
- *
- * <p>Values calculated for the <code>WEEK_OF_YEAR</code> field range from 1 to
- * 53. Week 1 for a year is the first week that contains at least
- * <code>getMinimalDaysInFirstWeek()</code> days from that year. It thus
- * depends on the values of <code>getMinimalDaysInFirstWeek()</code>,
- * <code>getFirstDayOfWeek()</code>, and the day of the week of January 1.
- * Weeks between week 1 of one year and week 1 of the following year are
- * numbered sequentially from 2 to 52 or 53 (as needed).
- *
- * <p>For example, January 1, 1998 was a Thursday. If
- * <code>getFirstDayOfWeek()</code> is <code>MONDAY</code> and
- * <code>getMinimalDaysInFirstWeek()</code> is 4 (these are the values
- * reflecting ISO 8601 and many national standards), then week 1 of 1998 starts
- * on December 29, 1997, and ends on January 4, 1998. If, however,
- * <code>getFirstDayOfWeek()</code> is <code>SUNDAY</code>, then week 1 of 1998
- * starts on January 4, 1998, and ends on January 10, 1998; the first three days
- * of 1998 then are part of week 53 of 1997.
- *
- * <p>Example for using GregorianCalendar:
- * <pre>
- * \code
- * // get the supported ids for GMT-08:00 (Pacific Standard Time)
- * UErrorCode success = U_ZERO_ERROR;
- * const StringEnumeration *ids = TimeZone::createEnumeration(-8 * 60 * 60 * 1000);
- * // if no ids were returned, something is wrong. get out.
- * if (ids == 0 || ids->count(success) == 0) {
- * return;
- * }
- *
- * // begin output
- * cout << "Current Time" << endl;
- *
- * // create a Pacific Standard Time time zone
- * SimpleTimeZone* pdt = new SimpleTimeZone(-8 * 60 * 60 * 1000, ids->unext(NULL, success)));
- *
- * // set up rules for daylight savings time
- * pdt->setStartRule(UCAL_MARCH, 1, UCAL_SUNDAY, 2 * 60 * 60 * 1000);
- * pdt->setEndRule(UCAL_NOVEMBER, 2, UCAL_SUNDAY, 2 * 60 * 60 * 1000);
- *
- * // create a GregorianCalendar with the Pacific Daylight time zone
- * // and the current date and time
- * Calendar* calendar = new GregorianCalendar( pdt, success );
- *
- * // print out a bunch of interesting things
- * cout << "ERA: " << calendar->get( UCAL_ERA, success ) << endl;
- * cout << "YEAR: " << calendar->get( UCAL_YEAR, success ) << endl;
- * cout << "MONTH: " << calendar->get( UCAL_MONTH, success ) << endl;
- * cout << "WEEK_OF_YEAR: " << calendar->get( UCAL_WEEK_OF_YEAR, success ) << endl;
- * cout << "WEEK_OF_MONTH: " << calendar->get( UCAL_WEEK_OF_MONTH, success ) << endl;
- * cout << "DATE: " << calendar->get( UCAL_DATE, success ) << endl;
- * cout << "DAY_OF_MONTH: " << calendar->get( UCAL_DAY_OF_MONTH, success ) << endl;
- * cout << "DAY_OF_YEAR: " << calendar->get( UCAL_DAY_OF_YEAR, success ) << endl;
- * cout << "DAY_OF_WEEK: " << calendar->get( UCAL_DAY_OF_WEEK, success ) << endl;
- * cout << "DAY_OF_WEEK_IN_MONTH: " << calendar->get( UCAL_DAY_OF_WEEK_IN_MONTH, success ) << endl;
- * cout << "AM_PM: " << calendar->get( UCAL_AM_PM, success ) << endl;
- * cout << "HOUR: " << calendar->get( UCAL_HOUR, success ) << endl;
- * cout << "HOUR_OF_DAY: " << calendar->get( UCAL_HOUR_OF_DAY, success ) << endl;
- * cout << "MINUTE: " << calendar->get( UCAL_MINUTE, success ) << endl;
- * cout << "SECOND: " << calendar->get( UCAL_SECOND, success ) << endl;
- * cout << "MILLISECOND: " << calendar->get( UCAL_MILLISECOND, success ) << endl;
- * cout << "ZONE_OFFSET: " << (calendar->get( UCAL_ZONE_OFFSET, success )/(60*60*1000)) << endl;
- * cout << "DST_OFFSET: " << (calendar->get( UCAL_DST_OFFSET, success )/(60*60*1000)) << endl;
- *
- * cout << "Current Time, with hour reset to 3" << endl;
- * calendar->clear(UCAL_HOUR_OF_DAY); // so doesn't override
- * calendar->set(UCAL_HOUR, 3);
- * cout << "ERA: " << calendar->get( UCAL_ERA, success ) << endl;
- * cout << "YEAR: " << calendar->get( UCAL_YEAR, success ) << endl;
- * cout << "MONTH: " << calendar->get( UCAL_MONTH, success ) << endl;
- * cout << "WEEK_OF_YEAR: " << calendar->get( UCAL_WEEK_OF_YEAR, success ) << endl;
- * cout << "WEEK_OF_MONTH: " << calendar->get( UCAL_WEEK_OF_MONTH, success ) << endl;
- * cout << "DATE: " << calendar->get( UCAL_DATE, success ) << endl;
- * cout << "DAY_OF_MONTH: " << calendar->get( UCAL_DAY_OF_MONTH, success ) << endl;
- * cout << "DAY_OF_YEAR: " << calendar->get( UCAL_DAY_OF_YEAR, success ) << endl;
- * cout << "DAY_OF_WEEK: " << calendar->get( UCAL_DAY_OF_WEEK, success ) << endl;
- * cout << "DAY_OF_WEEK_IN_MONTH: " << calendar->get( UCAL_DAY_OF_WEEK_IN_MONTH, success ) << endl;
- * cout << "AM_PM: " << calendar->get( UCAL_AM_PM, success ) << endl;
- * cout << "HOUR: " << calendar->get( UCAL_HOUR, success ) << endl;
- * cout << "HOUR_OF_DAY: " << calendar->get( UCAL_HOUR_OF_DAY, success ) << endl;
- * cout << "MINUTE: " << calendar->get( UCAL_MINUTE, success ) << endl;
- * cout << "SECOND: " << calendar->get( UCAL_SECOND, success ) << endl;
- * cout << "MILLISECOND: " << calendar->get( UCAL_MILLISECOND, success ) << endl;
- * cout << "ZONE_OFFSET: " << (calendar->get( UCAL_ZONE_OFFSET, success )/(60*60*1000)) << endl; // in hours
- * cout << "DST_OFFSET: " << (calendar->get( UCAL_DST_OFFSET, success )/(60*60*1000)) << endl; // in hours
- *
- * if (U_FAILURE(success)) {
- * cout << "An error occured. success=" << u_errorName(success) << endl;
- * }
- *
- * delete ids;
- * delete calendar; // also deletes pdt
- * \endcode
- * </pre>
- * @stable ICU 2.0
- */
-class U_I18N_API GregorianCalendar: public Calendar {
-public:
-
- /**
- * Useful constants for GregorianCalendar and TimeZone.
- * @stable ICU 2.0
- */
- enum EEras {
- BC,
- AD
- };
-
- /**
- * Constructs a default GregorianCalendar using the current time in the default time
- * zone with the default locale.
- *
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar based on the current time in the given time zone
- * with the default locale. Clients are no longer responsible for deleting the given
- * time zone object after it's adopted.
- *
- * @param zoneToAdopt The given timezone.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(TimeZone* zoneToAdopt, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar based on the current time in the given time zone
- * with the default locale.
- *
- * @param zone The given timezone.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(const TimeZone& zone, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar 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 GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(const Locale& aLocale, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar based on the current time in the given time zone
- * with the given locale. Clients are no longer responsible for deleting the given
- * time zone object after it's adopted.
- *
- * @param zoneToAdopt The given timezone.
- * @param aLocale The given locale.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(TimeZone* zoneToAdopt, const Locale& aLocale, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar based on the current time in the given time zone
- * with the given locale.
- *
- * @param zone The given timezone.
- * @param aLocale The given locale.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(const TimeZone& zone, const Locale& aLocale, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar with the given AD date set in the default time
- * zone with the default locale.
- *
- * @param year The value used to set the YEAR time field in the calendar.
- * @param month The value used to set the MONTH time field in the calendar. Month
- * value is 0-based. e.g., 0 for January.
- * @param date The value used to set the DATE time field in the calendar.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(int32_t year, int32_t month, int32_t date, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar with the given AD date and time set for the
- * default time zone with the default locale.
- *
- * @param year The value used to set the YEAR time field in the calendar.
- * @param month The value used to set the MONTH time field in the calendar. Month
- * value is 0-based. e.g., 0 for January.
- * @param date The value used to set the DATE time field in the calendar.
- * @param hour The value used to set the HOUR_OF_DAY time field in the calendar.
- * @param minute The value used to set the MINUTE time field in the calendar.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, UErrorCode& success);
-
- /**
- * Constructs a GregorianCalendar with the given AD date and time set for the
- * default time zone with the default locale.
- *
- * @param year The value used to set the YEAR time field in the calendar.
- * @param month The value used to set the MONTH time field in the calendar. Month
- * value is 0-based. e.g., 0 for January.
- * @param date The value used to set the DATE time field in the calendar.
- * @param hour The value used to set the HOUR_OF_DAY time field in the calendar.
- * @param minute The value used to set the MINUTE time field in the calendar.
- * @param second The value used to set the SECOND time field in the calendar.
- * @param success Indicates the status of GregorianCalendar object construction.
- * Returns U_ZERO_ERROR if constructed successfully.
- * @stable ICU 2.0
- */
- GregorianCalendar(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, int32_t second, UErrorCode& success);
-
- /**
- * Destructor
- * @stable ICU 2.0
- */
- virtual ~GregorianCalendar();
-
- /**
- * Copy constructor
- * @param source the object to be copied.
- * @stable ICU 2.0
- */
- GregorianCalendar(const GregorianCalendar& source);
-
- /**
- * Default assignment operator
- * @param right the object to be copied.
- * @stable ICU 2.0
- */
- GregorianCalendar& operator=(const GregorianCalendar& right);
-
- /**
- * Create and return a polymorphic copy of this calendar.
- * @return return a polymorphic copy of this calendar.
- * @stable ICU 2.0
- */
- virtual Calendar* clone(void) const;
-
- /**
- * Sets the GregorianCalendar change date. This is the point when the switch from
- * Julian dates to Gregorian dates occurred. Default is 00:00:00 local time, October
- * 15, 1582. Previous to this time and date will be Julian dates.
- *
- * @param date The given Gregorian cutover date.
- * @param success Output param set to success/failure code on exit.
- * @stable ICU 2.0
- */
- void setGregorianChange(UDate date, UErrorCode& success);
-
- /**
- * Gets the Gregorian Calendar change date. This is the point when the switch from
- * Julian dates to Gregorian dates occurred. Default is 00:00:00 local time, October
- * 15, 1582. Previous to this time and date will be Julian dates.
- *
- * @return The Gregorian cutover time for this calendar.
- * @stable ICU 2.0
- */
- UDate getGregorianChange(void) const;
-
- /**
- * Return true if the given year is a leap year. Determination of whether a year is
- * a leap year is actually very complicated. We do something crude and mostly
- * correct here, but for a real determination you need a lot of contextual
- * information. For example, in Sweden, the change from Julian to Gregorian happened
- * in a complex way resulting in missed leap years and double leap years between
- * 1700 and 1753. Another example is that after the start of the Julian calendar in
- * 45 B.C., the leap years did not regularize until 8 A.D. This method ignores these
- * quirks, and pays attention only to the Julian onset date and the Gregorian
- * cutover (which can be changed).
- *
- * @param year The given year.
- * @return True if the given year is a leap year; false otherwise.
- * @stable ICU 2.0
- */
- UBool isLeapYear(int32_t year) const;
-
- /**
- * Returns TRUE if the given Calendar object is equivalent to this
- * one. Calendar override.
- *
- * @param other the Calendar to be compared with this Calendar
- * @stable ICU 2.4
- */
- virtual UBool isEquivalentTo(const Calendar& other) const;
-
- /**
- * (Overrides Calendar) Rolls up or down by the given amount in the specified field.
- * For more information, see the documentation for Calendar::roll().
- *
- * @param field The time field.
- * @param amount Indicates amount to roll.
- * @param status Output param set to success/failure code on exit. If any value
- * previously set in the time field is invalid, this will be set to
- * an error status.
- * @deprecated ICU 2.6. Use roll(UCalendarDateFields field, int32_t amount, UErrorCode& status) instead.
- */
- virtual void roll(EDateFields field, int32_t amount, UErrorCode& status);
-
- /**
- * (Overrides Calendar) Rolls up or down by the given amount in the specified field.
- * For more information, see the documentation for Calendar::roll().
- *
- * @param field The time field.
- * @param amount Indicates amount to roll.
- * @param status Output param set to success/failure code on exit. If any value
- * previously set in the time field is invalid, this will be set to
- * an error status.
- * @stable ICU 2.6.
- */
- virtual void roll(UCalendarDateFields field, int32_t amount, UErrorCode& status);
-
- /**
- * Return the minimum value that this field could have, given the current date.
- * For the Gregorian calendar, this is the same as getMinimum() and getGreatestMinimum().
- * @param field the time field.
- * @return the minimum value that this field could have, given the current date.
- * @deprecated ICU 2.6. Use getActualMinimum(UCalendarDateFields field) instead.
- */
- int32_t getActualMinimum(EDateFields field) const;
-
- /**
- * Return the minimum value that this field could have, given the current date.
- * For the Gregorian calendar, this is the same as getMinimum() and getGreatestMinimum().
- * @param field the time field.
- * @param status
- * @return the minimum value that this field could have, given the current date.
- * @deprecated ICU 2.6. Use getActualMinimum(UCalendarDateFields field) instead. (Added to ICU 3.0 for signature consistency)
- */
- int32_t getActualMinimum(EDateFields field, UErrorCode& status) const;
-
- /**
- * Return the minimum value that this field could have, given the current date.
- * For the Gregorian calendar, this is the same as getMinimum() and getGreatestMinimum().
- * @param field the time field.
- * @param status error result.
- * @return the minimum value that this field could have, given the current date.
- * @stable ICU 3.0
- */
- int32_t getActualMinimum(UCalendarDateFields field, UErrorCode &status) const;
-
- /**
- * Return the maximum value that this field could have, given the current date.
- * For example, with the date "Feb 3, 1997" and the DAY_OF_MONTH field, the actual
- * maximum would be 28; for "Feb 3, 1996" it s 29. Similarly for a Hebrew calendar,
- * for some years the actual maximum for MONTH is 12, and for others 13.
- * @param field the time field.
- * @return the maximum value that this field could have, given the current date.
- * @deprecated ICU 2.6. Use getActualMaximum(UCalendarDateFields field) instead.
- */
- int32_t getActualMaximum(EDateFields field) const;
-
- /**
- * Return the maximum value that this field could have, given the current date.
- * For example, with the date "Feb 3, 1997" and the DAY_OF_MONTH field, the actual
- * maximum would be 28; for "Feb 3, 1996" it s 29. Similarly for a Hebrew calendar,
- * for some years the actual maximum for MONTH is 12, and for others 13.
- * @param field the time field.
- * @param status returns any errors that may result from this function call.
- * @return the maximum value that this field could have, given the current date.
- * @stable ICU 2.6
- */
- virtual int32_t getActualMaximum(UCalendarDateFields field, UErrorCode& status) const;
-
- /**
- * (Overrides Calendar) Return true if the current date for this Calendar is in
- * Daylight Savings Time. Recognizes DST_OFFSET, if it is set.
- *
- * @param status Fill-in parameter which receives the status of this operation.
- * @return True if the current date for this Calendar is in Daylight Savings Time,
- * false, otherwise.
- * @stable ICU 2.0
- */
- virtual UBool inDaylightTime(UErrorCode& status) 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.
- * @stable ICU 2.0
- */
- 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.
- * @stable ICU 2.0
- */
- static UClassID U_EXPORT2 getStaticClassID(void);
-
- /**
- * Get the calendar type, "gregorian", for use in DateFormatSymbols.
- *
- * @return calendar type
- * @internal
- */
- virtual const char * getType() const;
-
-protected:
-
- /**
- * (Overrides Calendar) Converts GMT as milliseconds to time field values.
- * @param status Fill-in parameter which receives the status of this operation.
- * @stable ICU 2.0
- */
-
- private:
- GregorianCalendar(); // default constructor not implemented
-
- protected:
- /**
- * Return the ERA. We need a special method for this because the
- * default ERA is AD, but a zero (unset) ERA is BC.
- * @return the ERA.
- * @internal
- */
- virtual int32_t internalGetEra() 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
- * @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;
-
- /**
- * Subclasses may override this. This method calls
- * handleGetMonthLength() to obtain the calendar-specific month
- * length.
- * @param bestField which field to use to calculate the date
- * @return julian day specified by calendar fields.
- * @internal
- */
- virtual int32_t handleComputeJulianDay(UCalendarDateFields bestField) ;
-
- /**
- * Return the number of days in the given month of the given extended
- * year of this calendar system. Subclasses should override this
- * method if they can provide a more correct or more efficient
- * implementation than the default implementation in Calendar.
- * @internal
- */
- virtual int32_t handleGetMonthLength(int32_t extendedYear, int32_t month) const;
-
- /**
- * Return the number of days in the given extended year of this
- * calendar system. Subclasses should override this method if they can
- * provide a more correct or more efficient implementation than the
- * default implementation in Calendar.
- * @stable ICU 2.0
- */
- virtual int32_t handleGetYearLength(int32_t eyear) const;
-
- /**
- * return the length of the given month.
- * @param month the given month.
- * @return the length of the given month.
- * @internal
- */
- virtual int32_t monthLength(int32_t month) const;
-
- /**
- * return the length of the month according to the given year.
- * @param month the given month.
- * @param year the given year.
- * @return the length of the month
- * @internal
- */
- virtual int32_t monthLength(int32_t month, int32_t year) const;
-
- /**
- * return the length of the given year.
- * @param year the given year.
- * @return the length of the given year.
- * @internal
- */
- int32_t yearLength(int32_t year) const;
-
- /**
- * return the length of the year field.
- * @return the length of the year field
- * @internal
- */
- int32_t yearLength(void) const;
-
- /**
- * After adjustments such as add(MONTH), add(YEAR), we don't want the
- * month to jump around. E.g., we don't want Jan 31 + 1 month to go to Mar
- * 3, we want it to go to Feb 28. Adjustments which might run into this
- * problem call this method to retain the proper month.
- * @internal
- */
- void pinDayOfMonth(void);
-
- /**
- * Return the day number with respect to the epoch. January 1, 1970 (Gregorian)
- * is day zero.
- * @param status Fill-in parameter which receives the status of this operation.
- * @return the day number with respect to the epoch.
- * @internal
- */
- virtual UDate getEpochDay(UErrorCode& status);
-
- /**
- * Subclass API for defining limits of different types.
- * Subclasses must implement this method to return limits for the
- * following fields:
- *
- * <pre>UCAL_ERA
- * UCAL_YEAR
- * UCAL_MONTH
- * UCAL_WEEK_OF_YEAR
- * UCAL_WEEK_OF_MONTH
- * UCAL_DATE (DAY_OF_MONTH on Java)
- * UCAL_DAY_OF_YEAR
- * UCAL_DAY_OF_WEEK_IN_MONTH
- * UCAL_YEAR_WOY
- * UCAL_EXTENDED_YEAR</pre>
- *
- * @param field one of the above 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 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 to convert from week fields
- * (YEAR_WOY and WEEK_OF_YEAR) to an extended year in the case
- * where YEAR, EXTENDED_YEAR are not set.
- * The Gregorian implementation assumes a yearWoy in gregorian format, according to the current era.
- * @return the extended year, UCAL_EXTENDED_YEAR
- * @internal
- */
- virtual int32_t handleGetExtendedYearFromWeekFields(int32_t yearWoy, int32_t woy);
-
-
- /**
- * Subclasses may override this method to compute several fields
- * specific to each calendar system. These are:
- *
- * <ul><li>ERA
- * <li>YEAR
- * <li>MONTH
- * <li>DAY_OF_MONTH
- * <li>DAY_OF_YEAR
- * <li>EXTENDED_YEAR</ul>
- *
- * <p>The GregorianCalendar implementation implements
- * a calendar with the specified Julian/Gregorian cutover date.
- * @internal
- */
- virtual void handleComputeFields(int32_t julianDay, UErrorCode &status);
-
- private:
- /**
- * Compute the julian day number of the given year.
- * @param isGregorian if true, using Gregorian calendar, otherwise using Julian calendar
- * @param year the given year.
- * @param isLeap true if the year is a leap year.
- * @return
- */
- static double computeJulianDayOfYear(UBool isGregorian, int32_t year,
- UBool& isLeap);
-
- /**
- * Validates the values of the set time fields. True if they're all valid.
- * @return True if the set time fields are all valid.
- */
- UBool validateFields(void) const;
-
- /**
- * Validates the value of the given time field. True if it's valid.
- */
- UBool boundsCheck(int32_t value, UCalendarDateFields field) const;
-
- /**
- * Return the pseudo-time-stamp for two fields, given their
- * individual pseudo-time-stamps. If either of the fields
- * is unset, then the aggregate is unset. Otherwise, the
- * aggregate is the later of the two stamps.
- * @param stamp_a One given field.
- * @param stamp_b Another given field.
- * @return the pseudo-time-stamp for two fields
- */
- int32_t aggregateStamp(int32_t stamp_a, int32_t stamp_b);
-
- /**
- * The point at which the Gregorian calendar rules are used, measured in
- * milliseconds from the standard epoch. Default is October 15, 1582
- * (Gregorian) 00:00:00 UTC, that is, October 4, 1582 (Julian) is followed
- * by October 15, 1582 (Gregorian). This corresponds to Julian day number
- * 2299161. This is measured from the standard epoch, not in Julian Days.
- * @internal
- */
- UDate fGregorianCutover;
-
- /**
- * Julian day number of the Gregorian cutover
- */
- int32_t fCutoverJulianDay;
-
- /**
- * Midnight, local time (using this Calendar's TimeZone) at or before the
- * gregorianCutover. This is a pure date value with no time of day or
- * timezone component.
- */
- UDate fNormalizedGregorianCutover;// = gregorianCutover;
-
- /**
- * The year of the gregorianCutover, with 0 representing
- * 1 BC, -1 representing 2 BC, etc.
- */
- int32_t fGregorianCutoverYear;// = 1582;
-
- /**
- * The year of the gregorianCutover, with 0 representing
- * 1 BC, -1 representing 2 BC, etc.
- */
- int32_t fGregorianCutoverJulianDay;// = 2299161;
-
- /**
- * Converts time as milliseconds to Julian date. The Julian date used here is not a
- * true Julian date, since it is measured from midnight, not noon.
- *
- * @param millis The given milliseconds.
- * @return The Julian date number.
- */
- static double millisToJulianDay(UDate millis);
-
- /**
- * Converts Julian date to time as milliseconds. The Julian date used here is not a
- * true Julian date, since it is measured from midnight, not noon.
- *
- * @param julian The given Julian date number.
- * @return Time as milliseconds.
- */
- static UDate julianDayToMillis(double julian);
-
- /**
- * Used by handleComputeJulianDay() and handleComputeMonthStart().
- * Temporary field indicating whether the calendar is currently Gregorian as opposed to Julian.
- */
- UBool fIsGregorian;
-
- /**
- * Used by handleComputeJulianDay() and handleComputeMonthStart().
- * Temporary field indicating that the sense of the gregorian cutover should be inverted
- * to handle certain calculations on and around the cutover date.
- */
- UBool fInvertGregorian;
-
-
- public: // internal implementation
-
- /**
- * @internal
- * @return TRUE if this calendar has the notion of a default century
- */
- virtual UBool haveDefaultCentury() const;
-
- /**
- * @internal
- * @return the start of the default century
- */
- virtual UDate defaultCenturyStart() const;
-
- /**
- * @internal
- * @return the beginning year of the default century
- */
- virtual int32_t defaultCenturyStartYear() 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;
-
- /**
- * Default value that indicates the UDate of the beginning of the system default century
- */
- static const UDate fgSystemDefaultCentury;
-
- /**
- * Returns the beginning date of the 100-year window that dates with 2-digit years
- * are considered to fall within.
- * @return 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.
- * @return 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
-
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