ICU 76.1: i18n/unicode/rbtz.h Source File

ICU 76.1 76.1

rbtz.h
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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 *******************************************************************************
5 * Copyright (C) 2007-2013, International Business Machines Corporation and *
6 * others. All Rights Reserved. *
7 *******************************************************************************
8 */
9 #ifndef RBTZ_H
10 #define RBTZ_H
11
12 #include "unicode/utypes.h"
13
14 #if U_SHOW_CPLUSPLUS_API
15
21 #if !UCONFIG_NO_FORMATTING
22
23 #include "unicode/basictz.h"
24 #include "unicode/unistr.h"
25
26 U_NAMESPACE_BEGIN
27
28 // forward declaration
29 class UVector;
30 struct Transition;
31
38 class U_I18N_API RuleBasedTimeZone : public BasicTimeZone {
39 public:
49 RuleBasedTimeZone(const UnicodeString& id, InitialTimeZoneRule* initialRule);
50
56 RuleBasedTimeZone(const RuleBasedTimeZone& source);
57
62 virtual ~RuleBasedTimeZone();
63
69 RuleBasedTimeZone& operator=(const RuleBasedTimeZone& right);
70
79 virtual bool operator==(const TimeZone& that) const override;
80
89 virtual bool operator!=(const TimeZone& that) const;
90
107 void addTransitionRule(TimeZoneRule* rule, UErrorCode& status);
108
118 void complete(UErrorCode& status);
119
127 virtual RuleBasedTimeZone* clone() const override;
128
153 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
154 uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const override;
155
175 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
176 uint8_t dayOfWeek, int32_t millis,
177 int32_t monthLength, UErrorCode& status) const override;
178
201 virtual void getOffset(UDate date, UBool local, int32_t& rawOffset,
202 int32_t& dstOffset, UErrorCode& ec) const override;
203
211 virtual void setRawOffset(int32_t offsetMillis) override;
212
220 virtual int32_t getRawOffset() const override;
221
228 virtual UBool useDaylightTime() const override;
229
230 #ifndef U_FORCE_HIDE_DEPRECATED_API
244 virtual UBool inDaylightTime(UDate date, UErrorCode& status) const override;
245 #endif // U_FORCE_HIDE_DEPRECATED_API
246
255 virtual UBool hasSameRules(const TimeZone& other) const override;
256
265 virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
266
275 virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
276
285 virtual int32_t countTransitionRules(UErrorCode& status) const override;
286
303 virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
304 const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const override;
305
310 virtual void getOffsetFromLocal(
311 UDate date, UTimeZoneLocalOption nonExistingTimeOpt,
312 UTimeZoneLocalOption duplicatedTimeOpt,
313 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const override;
314
315 private:
316 void deleteRules();
317 void deleteTransitions();
318 UVector* copyRules(UVector* source);
319 TimeZoneRule* findRuleInFinal(UDate date, UBool local,
320 int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
321 UBool findNext(UDate base, UBool inclusive, UDate& time, TimeZoneRule*& from, TimeZoneRule*& to) const;
322 UBool findPrev(UDate base, UBool inclusive, UDate& time, TimeZoneRule*& from, TimeZoneRule*& to) const;
323 int32_t getLocalDelta(int32_t rawBefore, int32_t dstBefore, int32_t rawAfter, int32_t dstAfter,
324 int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
325 UDate getTransitionTime(Transition* transition, UBool local,
326 int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt) const;
327 void getOffsetInternal(UDate date, UBool local, int32_t NonExistingTimeOpt, int32_t DuplicatedTimeOpt,
328 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& ec) const;
329 void completeConst(UErrorCode &status) const;
330
331 InitialTimeZoneRule *fInitialRule;
332 UVector *fHistoricRules;
333 UVector *fFinalRules;
334 UVector *fHistoricTransitions;
335 UBool fUpToDate;
336
337 public:
349 static UClassID U_EXPORT2 getStaticClassID();
350
362 virtual UClassID getDynamicClassID() const override;
363 };
364
365 U_NAMESPACE_END
366
367 #endif /* #if !UCONFIG_NO_FORMATTING */
368
369 #endif /* U_SHOW_CPLUSPLUS_API */
370
371 #endif // RBTZ_H
372
373 //eof
basictz.h
C++ API: ICU TimeZone base class.
icu::BasicTimeZone
BasicTimeZone is an abstract class extending TimeZone.
Definition: basictz.h:38
icu::InitialTimeZoneRule
InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning...
Definition: tzrule.h:202
icu::RuleBasedTimeZone
a BasicTimeZone subclass implemented in terms of InitialTimeZoneRule and TimeZoneRule instances
Definition: rbtz.h:38
icu::RuleBasedTimeZone::~RuleBasedTimeZone
virtual ~RuleBasedTimeZone()
Destructor.
icu::RuleBasedTimeZone::countTransitionRules
virtual int32_t countTransitionRules(UErrorCode &status) const override
Returns the number of TimeZoneRules which represents time transitions, for this time zone,...
icu::RuleBasedTimeZone::getStaticClassID
static UClassID getStaticClassID()
Return the class ID for this class.
icu::RuleBasedTimeZone::getPreviousTransition
virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const override
Gets the most recent time zone transition before the base time.
icu::RuleBasedTimeZone::complete
void complete(UErrorCode &status)
Makes the TimeZoneRule ready to handle actual timezone calculation APIs.
icu::RuleBasedTimeZone::getOffset
virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day, uint8_t dayOfWeek, int32_t millis, int32_t monthLength, UErrorCode &status) const override
Gets the time zone offset, for current date, modified in case of daylight savings.
icu::RuleBasedTimeZone::getOffsetFromLocal
virtual void getOffsetFromLocal(UDate date, UTimeZoneLocalOption nonExistingTimeOpt, UTimeZoneLocalOption duplicatedTimeOpt, int32_t &rawOffset, int32_t &dstOffset, UErrorCode &status) const override
Get time zone offsets from local wall time.
icu::RuleBasedTimeZone::getOffset
virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day, uint8_t dayOfWeek, int32_t millis, UErrorCode &status) const override
Returns the TimeZone's adjusted GMT offset (i.e., the number of milliseconds to add to GMT to get loc...
icu::RuleBasedTimeZone::setRawOffset
virtual void setRawOffset(int32_t offsetMillis) override
Sets the TimeZone's raw GMT offset (i.e., the number of milliseconds to add to GMT to get local time,...
icu::RuleBasedTimeZone::clone
virtual RuleBasedTimeZone * clone() const override
Clones TimeZone objects polymorphically.
icu::RuleBasedTimeZone::getTimeZoneRules
virtual void getTimeZoneRules(const InitialTimeZoneRule *&initial, const TimeZoneRule *trsrules[], int32_t &trscount, UErrorCode &status) const override
Gets the InitialTimeZoneRule and the set of TimeZoneRule which represent time transitions for this ti...
icu::RuleBasedTimeZone::getOffset
virtual void getOffset(UDate date, UBool local, int32_t &rawOffset, int32_t &dstOffset, UErrorCode &ec) const override
Returns the time zone raw and GMT offset for the given moment in time.
icu::RuleBasedTimeZone::addTransitionRule
void addTransitionRule(TimeZoneRule *rule, UErrorCode &status)
Adds the TimeZoneRule which represents time transitions.
icu::RuleBasedTimeZone::getNextTransition
virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const override
Gets the first time zone transition after the base time.
icu::RuleBasedTimeZone::RuleBasedTimeZone
RuleBasedTimeZone(const RuleBasedTimeZone &source)
Copy constructor.
icu::RuleBasedTimeZone::inDaylightTime
virtual UBool inDaylightTime(UDate date, UErrorCode &status) const override
Queries if the given date is in daylight savings time in this time zone.
icu::RuleBasedTimeZone::getDynamicClassID
virtual UClassID getDynamicClassID() const override
Returns a unique class ID POLYMORPHICALLY.
icu::RuleBasedTimeZone::hasSameRules
virtual UBool hasSameRules(const TimeZone &other) const override
Returns true if this zone has the same rule and offset as another zone.
icu::RuleBasedTimeZone::RuleBasedTimeZone
RuleBasedTimeZone(const UnicodeString &id, InitialTimeZoneRule *initialRule)
Constructs a RuleBasedTimeZone object with the ID and the InitialTimeZoneRule.
icu::RuleBasedTimeZone::operator=
RuleBasedTimeZone & operator=(const RuleBasedTimeZone &right)
Assignment operator.
icu::RuleBasedTimeZone::operator==
virtual bool operator==(const TimeZone &that) const override
Return true if the given TimeZone objects are semantically equal.
icu::RuleBasedTimeZone::getRawOffset
virtual int32_t getRawOffset() const override
Returns the TimeZone's raw GMT offset (i.e., the number of milliseconds to add to GMT to get local ti...
icu::RuleBasedTimeZone::useDaylightTime
virtual UBool useDaylightTime() const override
Queries if this time zone uses daylight savings time.
icu::RuleBasedTimeZone::operator!=
virtual bool operator!=(const TimeZone &that) const
Return true if the given TimeZone objects are semantically unequal.
icu::TimeZoneRule
TimeZoneRule is a class representing a rule for time zone.
Definition: tzrule.h:36
icu::TimeZoneTransition
TimeZoneTransition is a class representing a time zone transition.
Definition: tztrans.h:35
icu::TimeZone
TimeZone represents a time zone offset, and also figures out daylight savings.
Definition: timezone.h:133
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:296
UTimeZoneLocalOption
UTimeZoneLocalOption
Options used by ucal_getTimeZoneOffsetFromLocal and BasicTimeZone::getOffsetFromLocal() to specify ho...
Definition: ucal.h:1682
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:247
unistr.h
C++ API: Unicode String.
UClassID
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition: uobject.h:96
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:430
U_I18N_API
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside.
Definition: utypes.h:316
UDate
double UDate
Date and Time data type.
Definition: utypes.h:218