ICU 73.2: simpletz.h Source File

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00001 // © 2016 and later: Unicode, Inc. and others.
00002 // License & terms of use: http://www.unicode.org/copyright.html
00003 /*
00004  ********************************************************************************
00005  * Copyright (C) 1997-2013, International Business Machines                     *
00006  * Corporation and others. All Rights Reserved.                                 *
00007  ********************************************************************************
00008  *
00009  * File SIMPLETZ.H
00010  *
00011  * Modification History:
00012  *
00013  *   Date        Name        Description
00014  *   04/21/97    aliu        Overhauled header.
00015  *   08/10/98    stephen     JDK 1.2 sync
00016  *                           Added setStartRule() / setEndRule() overloads
00017  *                           Added hasSameRules()
00018  *   09/02/98    stephen     Added getOffset(monthLen)
00019  *                           Changed getOffset() to take UErrorCode
00020  *   07/09/99    stephen     Removed millisPerHour (unused, for HP compiler)
00021  *   12/02/99    aliu        Added TimeMode and constructor and setStart/EndRule
00022  *                           methods that take TimeMode. Added to docs.
00023  ********************************************************************************
00024  */
00025 
00026 #ifndef SIMPLETZ_H
00027 #define SIMPLETZ_H
00028 
00029 #include "unicode/utypes.h"
00030 
00031 #if U_SHOW_CPLUSPLUS_API
00032 
00038 #if !UCONFIG_NO_FORMATTING
00039 
00040 #include "unicode/basictz.h"
00041 
00042 U_NAMESPACE_BEGIN
00043 
00044 // forward declaration
00045 class InitialTimeZoneRule;
00046 class TimeZoneTransition;
00047 class AnnualTimeZoneRule;
00048 
00065 class U_I18N_API SimpleTimeZone: public BasicTimeZone {
00066 public:
00067 
00079     enum TimeMode {
00080         WALL_TIME = 0,
00081         STANDARD_TIME,
00082         UTC_TIME
00083     };
00084 
00090     SimpleTimeZone(const SimpleTimeZone& source);
00091 
00097     SimpleTimeZone& operator=(const SimpleTimeZone& right);
00098 
00103     virtual ~SimpleTimeZone();
00104 
00114     virtual bool operator==(const TimeZone& that) const override;
00115 
00127     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID);
00128 
00164     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
00165         int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
00166         int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
00167         int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
00168         int8_t savingsEndDayOfWeek, int32_t savingsEndTime,
00169         UErrorCode& status);
00207     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
00208         int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
00209         int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
00210         int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
00211         int8_t savingsEndDayOfWeek, int32_t savingsEndTime,
00212         int32_t savingsDST, UErrorCode& status);
00213 
00255     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
00256         int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
00257         int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
00258         TimeMode savingsStartTimeMode,
00259         int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
00260         int8_t savingsEndDayOfWeek, int32_t savingsEndTime, TimeMode savingsEndTimeMode,
00261         int32_t savingsDST, UErrorCode& status);
00262 
00271     void setStartYear(int32_t year);
00272 
00315     void setStartRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
00316                       int32_t time, UErrorCode& status);
00361     void setStartRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
00362                       int32_t time, TimeMode mode, UErrorCode& status);
00363 
00375     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t time,
00376                       UErrorCode& status);
00390     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t time,
00391                       TimeMode mode, UErrorCode& status);
00392 
00409     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
00410                       int32_t time, UBool after, UErrorCode& status);
00429     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
00430                       int32_t time, TimeMode mode, UBool after, UErrorCode& status);
00431 
00454     void setEndRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
00455                     int32_t time, UErrorCode& status);
00456 
00481     void setEndRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
00482                     int32_t time, TimeMode mode, UErrorCode& status);
00483 
00495     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t time, UErrorCode& status);
00496 
00510     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t time,
00511                     TimeMode mode, UErrorCode& status);
00512 
00529     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
00530                     int32_t time, UBool after, UErrorCode& status);
00531 
00550     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
00551                     int32_t time, TimeMode mode, UBool after, UErrorCode& status);
00552 
00573     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
00574                               uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const override;
00575 
00591     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
00592                            uint8_t dayOfWeek, int32_t milliseconds,
00593                            int32_t monthLength, UErrorCode& status) const override;
00610     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
00611                               uint8_t dayOfWeek, int32_t milliseconds,
00612                               int32_t monthLength, int32_t prevMonthLength,
00613                               UErrorCode& status) const;
00614 
00620     virtual void getOffset(UDate date, UBool local, int32_t& rawOffset,
00621                            int32_t& dstOffset, UErrorCode& ec) const override;
00622 
00627     virtual void getOffsetFromLocal(
00628         UDate date, UTimeZoneLocalOption nonExistingTimeOpt,
00629         UTimeZoneLocalOption duplicatedTimeOpt,
00630         int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const override;
00631 
00639     virtual int32_t getRawOffset(void) const override;
00640 
00648     virtual void setRawOffset(int32_t offsetMillis) override;
00649 
00659     void setDSTSavings(int32_t millisSavedDuringDST, UErrorCode& status);
00660 
00669     virtual int32_t getDSTSavings(void) const override;
00670 
00677     virtual UBool useDaylightTime(void) const override;
00678 
00679 #ifndef U_FORCE_HIDE_DEPRECATED_API
00680 
00694     virtual UBool inDaylightTime(UDate date, UErrorCode& status) const override;
00695 #endif  // U_FORCE_HIDE_DEPRECATED_API
00696 
00703     UBool hasSameRules(const TimeZone& other) const override;
00704 
00712     virtual SimpleTimeZone* clone() const override;
00713 
00722     virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
00723 
00732     virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
00733 
00742     virtual int32_t countTransitionRules(UErrorCode& status) const override;
00743 
00760     virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
00761         const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const override;
00762 
00763 
00764 public:
00765 
00776     virtual UClassID getDynamicClassID(void) const override;
00777 
00789     static UClassID U_EXPORT2 getStaticClassID(void);
00790 
00791 private:
00795     enum EMode
00796     {
00797         DOM_MODE = 1,
00798         DOW_IN_MONTH_MODE,
00799         DOW_GE_DOM_MODE,
00800         DOW_LE_DOM_MODE
00801     };
00802 
00803     SimpleTimeZone() = delete; // default constructor not implemented
00804 
00824     void construct(int32_t rawOffsetGMT,
00825                    int8_t startMonth, int8_t startDay, int8_t startDayOfWeek,
00826                    int32_t startTime, TimeMode startTimeMode,
00827                    int8_t endMonth, int8_t endDay, int8_t endDayOfWeek,
00828                    int32_t endTime, TimeMode endTimeMode,
00829                    int32_t dstSavings, UErrorCode& status);
00830 
00840     static int32_t compareToRule(int8_t month, int8_t monthLen, int8_t prevMonthLen,
00841                                  int8_t dayOfMonth,
00842                                  int8_t dayOfWeek, int32_t millis, int32_t millisDelta,
00843                                  EMode ruleMode, int8_t ruleMonth, int8_t ruleDayOfWeek,
00844                                  int8_t ruleDay, int32_t ruleMillis);
00845 
00861     void decodeRules(UErrorCode& status);
00862     void decodeStartRule(UErrorCode& status);
00863     void decodeEndRule(UErrorCode& status);
00864 
00865     int8_t startMonth, startDay, startDayOfWeek;   // the month, day, DOW, and time DST starts
00866     int32_t startTime;
00867     TimeMode startTimeMode, endTimeMode; // Mode for startTime, endTime; see TimeMode
00868     int8_t endMonth, endDay, endDayOfWeek; // the month, day, DOW, and time DST ends
00869     int32_t endTime;
00870     int32_t startYear;  // the year these DST rules took effect
00871     int32_t rawOffset;  // the TimeZone's raw GMT offset
00872     UBool useDaylight; // flag indicating whether this TimeZone uses DST
00873     static const int8_t STATICMONTHLENGTH[12]; // lengths of the months
00874     EMode startMode, endMode;   // flags indicating what kind of rules the DST rules are
00875 
00880     int32_t dstSavings;
00881 
00882     /* Private for BasicTimeZone implementation */
00883     void checkTransitionRules(UErrorCode& status) const;
00884     void initTransitionRules(UErrorCode& status);
00885     void clearTransitionRules(void);
00886     void deleteTransitionRules(void);
00887     UBool   transitionRulesInitialized;
00888     InitialTimeZoneRule*    initialRule;
00889     TimeZoneTransition*     firstTransition;
00890     AnnualTimeZoneRule*     stdRule;
00891     AnnualTimeZoneRule*     dstRule;
00892 };
00893 
00894 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfWeekInMonth,
00895                                          int32_t dayOfWeek,
00896                                          int32_t time, UErrorCode& status) {
00897     setStartRule(month, dayOfWeekInMonth, dayOfWeek, time, WALL_TIME, status);
00898 }
00899 
00900 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfMonth,
00901                                          int32_t time,
00902                                          UErrorCode& status) {
00903     setStartRule(month, dayOfMonth, time, WALL_TIME, status);
00904 }
00905 
00906 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfMonth,
00907                                          int32_t dayOfWeek,
00908                                          int32_t time, UBool after, UErrorCode& status) {
00909     setStartRule(month, dayOfMonth, dayOfWeek, time, WALL_TIME, after, status);
00910 }
00911 
00912 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfWeekInMonth,
00913                                        int32_t dayOfWeek,
00914                                        int32_t time, UErrorCode& status) {
00915     setEndRule(month, dayOfWeekInMonth, dayOfWeek, time, WALL_TIME, status);
00916 }
00917 
00918 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfMonth,
00919                                        int32_t time, UErrorCode& status) {
00920     setEndRule(month, dayOfMonth, time, WALL_TIME, status);
00921 }
00922 
00923 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
00924                                        int32_t time, UBool after, UErrorCode& status) {
00925     setEndRule(month, dayOfMonth, dayOfWeek, time, WALL_TIME, after, status);
00926 }
00927 
00928 inline void
00929 SimpleTimeZone::getOffset(UDate date, UBool local, int32_t& rawOffsetRef,
00930                           int32_t& dstOffsetRef, UErrorCode& ec) const {
00931     TimeZone::getOffset(date, local, rawOffsetRef, dstOffsetRef, ec);
00932 }
00933 
00934 U_NAMESPACE_END
00935 
00936 #endif /* #if !UCONFIG_NO_FORMATTING */
00937 
00938 #endif /* U_SHOW_CPLUSPLUS_API */
00939 
00940 #endif // _SIMPLETZ