ICU 63.1: rbtz.h Source File

00001 // © 2016 and later: Unicode, Inc. and others.
00002 // License & terms of use: http://www.unicode.org/copyright.html
00003 /*
00004 *******************************************************************************
00005 * Copyright (C) 2007-2013, International Business Machines Corporation and    *
00006 * others. All Rights Reserved.                                                *
00007 *******************************************************************************
00008 */
00009 #ifndef RBTZ_H
00010 #define RBTZ_H
00011 
00012 #include "unicode/utypes.h"
00013 
00019 #if !UCONFIG_NO_FORMATTING
00020 
00021 #include "unicode/basictz.h"
00022 #include "unicode/unistr.h"
00023 
00024 U_NAMESPACE_BEGIN
00025 
00026 // forward declaration
00027 class UVector;
00028 struct Transition;
00029 
00036 class U_I18N_API RuleBasedTimeZone : public BasicTimeZone {
00037 public:
00047     RuleBasedTimeZone(const UnicodeString& id, InitialTimeZoneRule* initialRule);
00048 
00054     RuleBasedTimeZone(const RuleBasedTimeZone& source);
00055 
00060     virtual ~RuleBasedTimeZone();
00061 
00067     RuleBasedTimeZone& operator=(const RuleBasedTimeZone& right);
00068 
00077     virtual UBool operator==(const TimeZone& that) const;
00078 
00087     virtual UBool operator!=(const TimeZone& that) const;
00088 
00104     void addTransitionRule(TimeZoneRule* rule, UErrorCode& status);
00105 
00115     void complete(UErrorCode& status);
00116 
00124     virtual TimeZone* clone(void) const;
00125 
00150     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
00151                               uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const;
00152 
00172     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
00173                            uint8_t dayOfWeek, int32_t millis,
00174                            int32_t monthLength, UErrorCode& status) const;
00175 
00198     virtual void getOffset(UDate date, UBool local, int32_t& rawOffset,
00199                            int32_t& dstOffset, UErrorCode& ec) const;
00200 
00208     virtual void setRawOffset(int32_t offsetMillis);
00209 
00217     virtual int32_t getRawOffset(void) const;
00218 
00225     virtual UBool useDaylightTime(void) const;
00226 
00240     virtual UBool inDaylightTime(UDate date, UErrorCode& status) const;
00241 
00250     virtual UBool hasSameRules(const TimeZone& other) const;
00251 
00260     virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const;
00261 
00270     virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const;
00271 
00280     virtual int32_t countTransitionRules(UErrorCode& status) const;
00281 
00298     virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
00299         const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const;
00300 
00305     virtual void getOffsetFromLocal(UDate date, int32_t nonExistingTimeOpt, int32_t duplicatedTimeOpt,
00306         int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const;
00307 
00308 private:
00309     void deleteRules(void);
00310     void deleteTransitions(void);
00311     UVector* copyRules(UVector* source);
00312     TimeZoneRule* findRuleInFinal(UDate date, UBool local,
00313         int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
00314     UBool findNext(UDate base, UBool inclusive, UDate& time, TimeZoneRule*& from, TimeZoneRule*& to) const;
00315     UBool findPrev(UDate base, UBool inclusive, UDate& time, TimeZoneRule*& from, TimeZoneRule*& to) const;
00316     int32_t getLocalDelta(int32_t rawBefore, int32_t dstBefore, int32_t rawAfter, int32_t dstAfter,
00317         int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
00318     UDate getTransitionTime(Transition* transition, UBool local,
00319         int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
00320     void getOffsetInternal(UDate date, UBool local, int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt,
00321         int32_t& rawOffset, int32_t& dstOffset, UErrorCode& ec) const;
00322     void completeConst(UErrorCode &status) const;
00323 
00324     InitialTimeZoneRule *fInitialRule;
00325     UVector             *fHistoricRules;
00326     UVector             *fFinalRules;
00327     UVector             *fHistoricTransitions;
00328     UBool               fUpToDate;
00329 
00330 public:
00342     static UClassID U_EXPORT2 getStaticClassID(void);
00343 
00355     virtual UClassID getDynamicClassID(void) const;
00356 };
00357 
00358 U_NAMESPACE_END
00359 
00360 #endif /* #if !UCONFIG_NO_FORMATTING */
00361 
00362 #endif // RBTZ_H
00363 
00364 //eof