/*
*****************************************************************************
- * Copyright (C) 2007-2008, International Business Machines Corporation
+ * Copyright (C) 2007-2013, International Business Machines Corporation
* and others. All Rights Reserved.
*****************************************************************************
*
#if !UCONFIG_NO_FORMATTING
#include "unicode/calendar.h"
+#include "unicode/timezone.h"
U_NAMESPACE_BEGIN
* </ul>
*
* <p>
- * This class should not be subclassed.</p>
+ * This class should only be subclassed to implement variants of the Chinese lunar calendar.</p>
* <p>
* ChineseCalendar usually should be instantiated using
* {@link com.ibm.icu.util.Calendar#getInstance(ULocale)} passing in a <code>ULocale</code>
* @see com.ibm.icu.text.ChineseDateFormat
* @see com.ibm.icu.util.Calendar
* @author Alan Liu
- * @stable ICU 2.8
+ * @internal
*/
-class ChineseCalendar : public Calendar {
+class U_I18N_API ChineseCalendar : public Calendar {
public:
//-------------------------------------------------------------------------
// Constructors...
//-------------------------------------------------------------------------
/**
- * Constructs an ChineseCalendar based on the current time in the default time zone
+ * Constructs a ChineseCalendar based on the current time in the default time zone
* with the given locale.
*
* @param aLocale The given locale.
*/
ChineseCalendar(const Locale& aLocale, UErrorCode &success);
+ protected:
+
+ /**
+ * Constructs a ChineseCalendar based on the current time in the default time zone
+ * with the given locale, using the specified epoch year and time zone for
+ * astronomical calculations.
+ *
+ * @param aLocale The given locale.
+ * @param epochYear The epoch year to use for calculation.
+ * @param zoneAstroCalc The TimeZone to use for astronomical calculations. If null,
+ * will be set appropriately for Chinese calendar (UTC + 8:00).
+ * @param success Indicates the status of ChineseCalendar object construction;
+ * if successful, will not be changed to an error value.
+ * @internal
+ */
+ ChineseCalendar(const Locale& aLocale, int32_t epochYear, const TimeZone* zoneAstroCalc, UErrorCode &success);
+
+ public:
/**
* Copy Constructor
* @internal
//-------------------------------------------------------------------------
UBool isLeapYear;
+ int32_t fEpochYear; // Start year of this Chinese calendar instance.
+ const TimeZone* fZoneAstroCalc; // Zone used for the astronomical calculation
+ // of this Chinese calendar instance.
//----------------------------------------------------------------------
// Calendar framework
virtual void handleComputeFields(int32_t julianDay, UErrorCode &status);
virtual const UFieldResolutionTable* getFieldResolutionTable() const;
-
-
-public:
+ public:
virtual void add(UCalendarDateFields field, int32_t amount, UErrorCode &status);
virtual void add(EDateFields field, int32_t amount, UErrorCode &status);
virtual void roll(UCalendarDateFields field, int32_t amount, UErrorCode &status);
virtual void roll(EDateFields field, int32_t amount, UErrorCode &status);
-
//----------------------------------------------------------------------
// Internal methods & astronomical calculations
//----------------------------------------------------------------------
-private:
+ private:
static const UFieldResolutionTable CHINESE_DATE_PRECEDENCE[];
- static double daysToMillis(double days);
- static double millisToDays(double millis);
+ double daysToMillis(double days) const;
+ double millisToDays(double millis) const;
virtual int32_t winterSolstice(int32_t gyear) const;
virtual int32_t newMoonNear(double days, UBool after) const;
virtual int32_t synodicMonthsBetween(int32_t day1, int32_t day2) const;
int32_t gmonth, UBool setAllFields);
virtual int32_t newYear(int32_t gyear) const;
virtual void offsetMonth(int32_t newMoon, int32_t dom, int32_t delta);
-
+ const TimeZone* getChineseCalZoneAstroCalc(void) const;
// UObject stuff
public:
* @return The class ID for all objects of this class.
* @internal
*/
- U_I18N_API static UClassID U_EXPORT2 getStaticClassID(void);
+ static UClassID U_EXPORT2 getStaticClassID(void);
/**
* return the calendar type, "chinese".
virtual int32_t defaultCenturyStartYear() const;
private: // default century stuff.
- /**
- * 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;
/**
* Returns the beginning date of the 100-year window that dates
*/
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);
-
ChineseCalendar(); // default constructor not implemented
};
#endif
#endif
-
-
-
projects / apple / icu.git / blobdiff