[apple/icu.git] / icuSources / i18n / tzrule.cpp

/*
*******************************************************************************
* Copyright (C) 2007-2012, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*/

#include "utypeinfo.h"  // for 'typeid' to work

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "unicode/tzrule.h"
#include "unicode/ucal.h"
#include "gregoimp.h"
#include "cmemory.h"
#include "uarrsort.h"

U_CDECL_BEGIN
// UComparator function for sorting start times
static int32_t U_CALLCONV
compareDates(const void * /*context*/, const void *left, const void *right) {
    UDate l = *((UDate*)left);
    UDate r = *((UDate*)right);
    int32_t res = l < r ? -1 : (l == r ? 0 : 1);
    return res;
}
U_CDECL_END

U_NAMESPACE_BEGIN

TimeZoneRule::TimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings)
: UObject(), fName(name), fRawOffset(rawOffset), fDSTSavings(dstSavings) {
}

TimeZoneRule::TimeZoneRule(const TimeZoneRule& source)
: UObject(source), fName(source.fName), fRawOffset(source.fRawOffset), fDSTSavings(source.fDSTSavings) {
}

TimeZoneRule::~TimeZoneRule() {
}

TimeZoneRule&
TimeZoneRule::operator=(const TimeZoneRule& right) {
    if (this != &right) {
        fName = right.fName;
        fRawOffset = right.fRawOffset;
        fDSTSavings = right.fDSTSavings;
    }
    return *this;
}

UBool
TimeZoneRule::operator==(const TimeZoneRule& that) const {
    return ((this == &that) ||
            (typeid(*this) == typeid(that) &&
            fName == that.fName &&
            fRawOffset == that.fRawOffset &&
            fDSTSavings == that.fDSTSavings));
}

UBool
TimeZoneRule::operator!=(const TimeZoneRule& that) const {
    return !operator==(that);
}

UnicodeString&
TimeZoneRule::getName(UnicodeString& name) const {
    name = fName;
    return name;
}

int32_t
TimeZoneRule::getRawOffset(void) const {
    return fRawOffset;
}

int32_t
TimeZoneRule::getDSTSavings(void) const {
    return fDSTSavings;
}

UBool
TimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
    return ((this == &other) ||
            (typeid(*this) == typeid(other) &&
            fRawOffset == other.fRawOffset &&
            fDSTSavings == other.fDSTSavings));
}


UOBJECT_DEFINE_RTTI_IMPLEMENTATION(InitialTimeZoneRule)

InitialTimeZoneRule::InitialTimeZoneRule(const UnicodeString& name,
                                         int32_t rawOffset,
                                         int32_t dstSavings)
: TimeZoneRule(name, rawOffset, dstSavings) {
}

InitialTimeZoneRule::InitialTimeZoneRule(const InitialTimeZoneRule& source)
: TimeZoneRule(source) {
}

InitialTimeZoneRule::~InitialTimeZoneRule() {
}

InitialTimeZoneRule*
InitialTimeZoneRule::clone(void) const {
    return new InitialTimeZoneRule(*this);
}

InitialTimeZoneRule&
InitialTimeZoneRule::operator=(const InitialTimeZoneRule& right) {
    if (this != &right) {
        TimeZoneRule::operator=(right);
    }
    return *this;
}

UBool
InitialTimeZoneRule::operator==(const TimeZoneRule& that) const {
    return ((this == &that) ||
            (typeid(*this) == typeid(that) &&
            TimeZoneRule::operator==(that)));
}

UBool
InitialTimeZoneRule::operator!=(const TimeZoneRule& that) const {
    return !operator==(that);
}

UBool
InitialTimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
    if (this == &other) {
        return TRUE;
    }
    if (typeid(*this) != typeid(other) || TimeZoneRule::isEquivalentTo(other) == FALSE) {
        return FALSE;
    }
    return TRUE;
}

UBool
InitialTimeZoneRule::getFirstStart(int32_t /*prevRawOffset*/,
                                  int32_t /*prevDSTSavings*/,
                                  UDate& /*result*/) const {
    return FALSE;
}

UBool
InitialTimeZoneRule::getFinalStart(int32_t /*prevRawOffset*/,
                                  int32_t /*prevDSTSavings*/,
                                  UDate& /*result*/) const {
    return FALSE;
}

UBool
InitialTimeZoneRule::getNextStart(UDate /*base*/,
                                 int32_t /*prevRawOffset*/,
                                 int32_t /*prevDSTSavings*/,
                                 UBool /*inclusive*/,
                                 UDate& /*result*/) const {
    return FALSE;
}

UBool
InitialTimeZoneRule::getPreviousStart(UDate /*base*/,
                                     int32_t /*prevRawOffset*/,
                                     int32_t /*prevDSTSavings*/,
                                     UBool /*inclusive*/,
                                     UDate& /*result*/) const {
    return FALSE;
}


UOBJECT_DEFINE_RTTI_IMPLEMENTATION(AnnualTimeZoneRule)

const int32_t AnnualTimeZoneRule::MAX_YEAR = 0x7FFFFFFF; /* max signed int32 */

AnnualTimeZoneRule::AnnualTimeZoneRule(const UnicodeString& name,
                                       int32_t rawOffset,
                                       int32_t dstSavings, 
                                       const DateTimeRule& dateTimeRule,
                                       int32_t startYear,
                                       int32_t endYear)
: TimeZoneRule(name, rawOffset, dstSavings), fDateTimeRule(new DateTimeRule(dateTimeRule)),
  fStartYear(startYear), fEndYear(endYear) {
}

AnnualTimeZoneRule::AnnualTimeZoneRule(const UnicodeString& name,
                                       int32_t rawOffset,
                                       int32_t dstSavings, 
                                       DateTimeRule* dateTimeRule,
                                       int32_t startYear,
                                       int32_t endYear)
: TimeZoneRule(name, rawOffset, dstSavings), fDateTimeRule(dateTimeRule),
  fStartYear(startYear), fEndYear(endYear) {
}

AnnualTimeZoneRule::AnnualTimeZoneRule(const AnnualTimeZoneRule& source)
: TimeZoneRule(source), fDateTimeRule(new DateTimeRule(*(source.fDateTimeRule))),
  fStartYear(source.fStartYear), fEndYear(source.fEndYear) {
}

AnnualTimeZoneRule::~AnnualTimeZoneRule() {
    delete fDateTimeRule;
}

AnnualTimeZoneRule*
AnnualTimeZoneRule::clone(void) const {
    return new AnnualTimeZoneRule(*this);
}

AnnualTimeZoneRule&
AnnualTimeZoneRule::operator=(const AnnualTimeZoneRule& right) {
    if (this != &right) {
        TimeZoneRule::operator=(right);
        delete fDateTimeRule;
        fDateTimeRule = right.fDateTimeRule->clone();
        fStartYear = right.fStartYear;
        fEndYear = right.fEndYear;
    }
    return *this;
}

UBool
AnnualTimeZoneRule::operator==(const TimeZoneRule& that) const {
    if (this == &that) {
        return TRUE;
    }
    if (typeid(*this) != typeid(that)) {
        return FALSE;
    }
    AnnualTimeZoneRule *atzr = (AnnualTimeZoneRule*)&that;
    return (*fDateTimeRule == *(atzr->fDateTimeRule) &&
            fStartYear == atzr->fStartYear &&
            fEndYear == atzr->fEndYear);
}

UBool
AnnualTimeZoneRule::operator!=(const TimeZoneRule& that) const {
    return !operator==(that);
}

const DateTimeRule*
AnnualTimeZoneRule::getRule() const {
    return fDateTimeRule;
}

int32_t
AnnualTimeZoneRule::getStartYear() const {
    return fStartYear;
}

int32_t
AnnualTimeZoneRule::getEndYear() const {
    return fEndYear;
}

UBool
AnnualTimeZoneRule::getStartInYear(int32_t year,
                                   int32_t prevRawOffset,
                                   int32_t prevDSTSavings,
                                   UDate &result) const {
    if (year < fStartYear || year > fEndYear) {
        return FALSE;
    }
    double ruleDay;
    DateTimeRule::DateRuleType type = fDateTimeRule->getDateRuleType();
    if (type == DateTimeRule::DOM) {
        ruleDay = Grego::fieldsToDay(year, fDateTimeRule->getRuleMonth(), fDateTimeRule->getRuleDayOfMonth());
    } else {
        UBool after = TRUE;
        if (type == DateTimeRule::DOW) {
            // Normalize DOW rule into DOW_GEQ_DOM or DOW_LEQ_DOM
            int32_t weeks = fDateTimeRule->getRuleWeekInMonth();
            if (weeks > 0) {
                ruleDay = Grego::fieldsToDay(year, fDateTimeRule->getRuleMonth(), 1);
                ruleDay += 7 * (weeks - 1);
            } else {
                after = FALSE;
                ruleDay = Grego::fieldsToDay(year, fDateTimeRule->getRuleMonth(),
                    Grego::monthLength(year, fDateTimeRule->getRuleMonth()));
                ruleDay += 7 * (weeks + 1);
           }
        } else {
            int32_t month = fDateTimeRule->getRuleMonth();
            int32_t dom = fDateTimeRule->getRuleDayOfMonth();
            if (type == DateTimeRule::DOW_LEQ_DOM) {
                after = FALSE;
                // Handle Feb <=29
                if (month == UCAL_FEBRUARY && dom == 29 && !Grego::isLeapYear(year)) {
                    dom--;
                }
            }
            ruleDay = Grego::fieldsToDay(year, month, dom);
        }
        int32_t dow = Grego::dayOfWeek(ruleDay);
        int32_t delta = fDateTimeRule->getRuleDayOfWeek() - dow;
        if (after) {
            delta = delta < 0 ? delta + 7 : delta;
        } else {
            delta = delta > 0 ? delta - 7 : delta;
        }
        ruleDay += delta;
    }

    result = ruleDay*U_MILLIS_PER_DAY + fDateTimeRule->getRuleMillisInDay();
    if (fDateTimeRule->getTimeRuleType() != DateTimeRule::UTC_TIME) {
        result -= prevRawOffset;
    }
    if (fDateTimeRule->getTimeRuleType() == DateTimeRule::WALL_TIME) {
        result -= prevDSTSavings;
    }
    return TRUE;
}

UBool
AnnualTimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
    if (this == &other) {
        return TRUE;
    }
    if (typeid(*this) != typeid(other) || TimeZoneRule::isEquivalentTo(other) == FALSE) {
        return FALSE;
    }
    AnnualTimeZoneRule* that = (AnnualTimeZoneRule*)&other;
    return (*fDateTimeRule == *(that->fDateTimeRule) &&
            fStartYear == that->fStartYear &&
            fEndYear == that->fEndYear);
}

UBool
AnnualTimeZoneRule::getFirstStart(int32_t prevRawOffset,
                                  int32_t prevDSTSavings,
                                  UDate& result) const {
    return getStartInYear(fStartYear, prevRawOffset, prevDSTSavings, result);
}

UBool
AnnualTimeZoneRule::getFinalStart(int32_t prevRawOffset,
                                  int32_t prevDSTSavings,
                                  UDate& result) const {
    if (fEndYear == MAX_YEAR) {
        return FALSE;
    }
    return getStartInYear(fEndYear, prevRawOffset, prevDSTSavings, result);
}

UBool
AnnualTimeZoneRule::getNextStart(UDate base,
                                 int32_t prevRawOffset,
                                 int32_t prevDSTSavings,
                                 UBool inclusive,
                                 UDate& result) const {
    int32_t year, month, dom, dow, doy, mid;
    Grego::timeToFields(base, year, month, dom, dow, doy, mid);
    if (year < fStartYear) {
        return getFirstStart(prevRawOffset, prevDSTSavings, result);
    }
    UDate tmp;
    if (getStartInYear(year, prevRawOffset, prevDSTSavings, tmp)) {
        if (tmp < base || (!inclusive && (tmp == base))) {
            // Return the next one
            return getStartInYear(year + 1, prevRawOffset, prevDSTSavings, result);
        } else {
            result = tmp;
            return TRUE;
        }
    }
    return FALSE;
}

UBool
AnnualTimeZoneRule::getPreviousStart(UDate base,
                                     int32_t prevRawOffset,
                                     int32_t prevDSTSavings,
                                     UBool inclusive,
                                     UDate& result) const {
    int32_t year, month, dom, dow, doy, mid;
    Grego::timeToFields(base, year, month, dom, dow, doy, mid);
    if (year > fEndYear) {
        return getFinalStart(prevRawOffset, prevDSTSavings, result);
    }
    UDate tmp;
    if (getStartInYear(year, prevRawOffset, prevDSTSavings, tmp)) {
        if (tmp > base || (!inclusive && (tmp == base))) {
            // Return the previous one
            return getStartInYear(year - 1, prevRawOffset, prevDSTSavings, result);
        } else {
            result = tmp;
            return TRUE;
        }
    }
    return FALSE;
}

UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TimeArrayTimeZoneRule)

TimeArrayTimeZoneRule::TimeArrayTimeZoneRule(const UnicodeString& name,
                                             int32_t rawOffset,
                                             int32_t dstSavings,
                                             const UDate* startTimes,
                                             int32_t numStartTimes,
                                             DateTimeRule::TimeRuleType timeRuleType)
: TimeZoneRule(name, rawOffset, dstSavings), fTimeRuleType(timeRuleType),
  fStartTimes(NULL) {
    UErrorCode status = U_ZERO_ERROR;
    initStartTimes(startTimes, numStartTimes, status);
    //TODO - status?
}


TimeArrayTimeZoneRule::TimeArrayTimeZoneRule(const TimeArrayTimeZoneRule& source)
: TimeZoneRule(source), fTimeRuleType(source.fTimeRuleType), fStartTimes(NULL) {
    UErrorCode status = U_ZERO_ERROR;
    initStartTimes(source.fStartTimes, source.fNumStartTimes, status);
    //TODO - status?
}


TimeArrayTimeZoneRule::~TimeArrayTimeZoneRule() {
    if (fStartTimes != NULL && fStartTimes != fLocalStartTimes) {
        uprv_free(fStartTimes);
    }
}

TimeArrayTimeZoneRule*
TimeArrayTimeZoneRule::clone(void) const {
    return new TimeArrayTimeZoneRule(*this);
}


TimeArrayTimeZoneRule&
TimeArrayTimeZoneRule::operator=(const TimeArrayTimeZoneRule& right) {
    if (this != &right) {
        TimeZoneRule::operator=(right);
        UErrorCode status = U_ZERO_ERROR;
        initStartTimes(right.fStartTimes, right.fNumStartTimes, status);
        //TODO - status?
        fTimeRuleType = right.fTimeRuleType;        
    }
    return *this;
}

UBool
TimeArrayTimeZoneRule::operator==(const TimeZoneRule& that) const {
    if (this == &that) {
        return TRUE;
    }
    if (typeid(*this) != typeid(that) || TimeZoneRule::operator==(that) == FALSE) {
        return FALSE;
    }
    TimeArrayTimeZoneRule *tatzr = (TimeArrayTimeZoneRule*)&that;
    if (fTimeRuleType != tatzr->fTimeRuleType ||
        fNumStartTimes != tatzr->fNumStartTimes) {
        return FALSE;
    }
    // Compare start times
    UBool res = TRUE;
    for (int32_t i = 0; i < fNumStartTimes; i++) {
        if (fStartTimes[i] != tatzr->fStartTimes[i]) {
            res = FALSE;
            break;
        }
    }
    return res;
}

UBool
TimeArrayTimeZoneRule::operator!=(const TimeZoneRule& that) const {
    return !operator==(that);
}

DateTimeRule::TimeRuleType
TimeArrayTimeZoneRule::getTimeType(void) const {
    return fTimeRuleType;
}

UBool
TimeArrayTimeZoneRule::getStartTimeAt(int32_t index, UDate& result) const {
    if (index >= fNumStartTimes || index < 0) {
        return FALSE;
    }
    result = fStartTimes[index];
    return TRUE;
}

int32_t
TimeArrayTimeZoneRule::countStartTimes(void) const {
    return fNumStartTimes;
}

UBool
TimeArrayTimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
    if (this == &other) {
        return TRUE;
    }
    if (typeid(*this) != typeid(other) || TimeZoneRule::isEquivalentTo(other) == FALSE) {
        return FALSE;
    }
    TimeArrayTimeZoneRule* that = (TimeArrayTimeZoneRule*)&other;
    if (fTimeRuleType != that->fTimeRuleType ||
        fNumStartTimes != that->fNumStartTimes) {
        return FALSE;
    }
    // Compare start times
    UBool res = TRUE;
    for (int32_t i = 0; i < fNumStartTimes; i++) {
        if (fStartTimes[i] != that->fStartTimes[i]) {
            res = FALSE;
            break;
        }
    }
    return res;
}

UBool
TimeArrayTimeZoneRule::getFirstStart(int32_t prevRawOffset,
                                             int32_t prevDSTSavings,
                                             UDate& result) const {
    if (fNumStartTimes <= 0 || fStartTimes == NULL) {
        return FALSE;
    }
    result = getUTC(fStartTimes[0], prevRawOffset, prevDSTSavings);
    return TRUE;
}

UBool
TimeArrayTimeZoneRule::getFinalStart(int32_t prevRawOffset,
                                     int32_t prevDSTSavings,
                                     UDate& result) const {
    if (fNumStartTimes <= 0 || fStartTimes == NULL) {
        return FALSE;
    }
    result = getUTC(fStartTimes[fNumStartTimes - 1], prevRawOffset, prevDSTSavings);
    return TRUE;
}

UBool
TimeArrayTimeZoneRule::getNextStart(UDate base,
                                    int32_t prevRawOffset,
                                    int32_t prevDSTSavings,
                                    UBool inclusive,
                                    UDate& result) const {
    int32_t i = fNumStartTimes - 1;
    for (; i >= 0; i--) {
        UDate time = getUTC(fStartTimes[i], prevRawOffset, prevDSTSavings);
        if (time < base || (!inclusive && time == base)) {
            break;
        }
        result = time;
    }
    if (i == fNumStartTimes - 1) {
        return FALSE;
    }
    return TRUE;
}

UBool
TimeArrayTimeZoneRule::getPreviousStart(UDate base,
                                        int32_t prevRawOffset,
                                        int32_t prevDSTSavings,
                                        UBool inclusive,
                                        UDate& result) const {
    int32_t i = fNumStartTimes - 1;
    for (; i >= 0; i--) {
        UDate time = getUTC(fStartTimes[i], prevRawOffset, prevDSTSavings);
        if (time < base || (inclusive && time == base)) {
            result = time;
            return TRUE;
        }
    }
    return FALSE;
}


// ---- private methods ------

UBool
TimeArrayTimeZoneRule::initStartTimes(const UDate source[], int32_t size, UErrorCode& status) {
    // Free old array
    if (fStartTimes != NULL && fStartTimes != fLocalStartTimes) {
        uprv_free(fStartTimes);
    }
    // Allocate new one if needed
    if (size > TIMEARRAY_STACK_BUFFER_SIZE) {
        fStartTimes = (UDate*)uprv_malloc(sizeof(UDate)*size);
        if (fStartTimes == NULL) {
            status = U_MEMORY_ALLOCATION_ERROR;
            fNumStartTimes = 0;
            return FALSE;
        }
    } else {
        fStartTimes = (UDate*)fLocalStartTimes;
    }
    uprv_memcpy(fStartTimes, source, sizeof(UDate)*size);
    fNumStartTimes = size;
    // Sort dates
    uprv_sortArray(fStartTimes, fNumStartTimes, (int32_t)sizeof(UDate), compareDates, NULL, TRUE, &status);
    if (U_FAILURE(status)) {
        if (fStartTimes != NULL && fStartTimes != fLocalStartTimes) {
            uprv_free(fStartTimes);
        }
        fNumStartTimes = 0;
        return FALSE;
    }
    return TRUE;
}

UDate
TimeArrayTimeZoneRule::getUTC(UDate time, int32_t raw, int32_t dst) const {
    if (fTimeRuleType != DateTimeRule::UTC_TIME) {
        time -= raw;
    }
    if (fTimeRuleType == DateTimeRule::WALL_TIME) {
        time -= dst;
    }
    return time;
}

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_FORMATTING */

//eof
Commit	Line	Data
46f4442e A	1	/*
46f4442e A	2	*******************************************************************************
51004dcb	3	* Copyright (C) 2007-2012, International Business Machines Corporation and
729e4ab9	4	* others. All Rights Reserved.
46f4442e A	5	*******************************************************************************
	6	*/
	7
51004dcb	8	#include "utypeinfo.h" // for 'typeid' to work
729e4ab9	9
46f4442e A	10	#include "unicode/utypes.h"
	11
	12	#if !UCONFIG_NO_FORMATTING
	13
	14	#include "unicode/tzrule.h"
	15	#include "unicode/ucal.h"
	16	#include "gregoimp.h"
	17	#include "cmemory.h"
	18	#include "uarrsort.h"
	19
	20	U_CDECL_BEGIN
	21	// UComparator function for sorting start times
	22	static int32_t U_CALLCONV
	23	compareDates(const void * /context/, const void left, const void right) {
	24	UDate l = ((UDate)left);
	25	UDate r = ((UDate)right);
	26	int32_t res = l < r ? -1 : (l == r ? 0 : 1);
	27	return res;
	28	}
	29	U_CDECL_END
	30
	31	U_NAMESPACE_BEGIN
	32
	33	TimeZoneRule::TimeZoneRule(const UnicodeString& name, int32_t rawOffset, int32_t dstSavings)
	34	: UObject(), fName(name), fRawOffset(rawOffset), fDSTSavings(dstSavings) {
	35	}
	36
	37	TimeZoneRule::TimeZoneRule(const TimeZoneRule& source)
	38	: UObject(source), fName(source.fName), fRawOffset(source.fRawOffset), fDSTSavings(source.fDSTSavings) {
	39	}
	40
	41	TimeZoneRule::~TimeZoneRule() {
	42	}
	43
	44	TimeZoneRule&
	45	TimeZoneRule::operator=(const TimeZoneRule& right) {
	46	if (this != &right) {
	47	fName = right.fName;
	48	fRawOffset = right.fRawOffset;
	49	fDSTSavings = right.fDSTSavings;
	50	}
	51	return *this;
	52	}
	53
	54	UBool
	55	TimeZoneRule::operator==(const TimeZoneRule& that) const {
	56	return ((this == &that) \|\|
729e4ab9	57	(typeid(*this) == typeid(that) &&
46f4442e A	58	fName == that.fName &&
	59	fRawOffset == that.fRawOffset &&
	60	fDSTSavings == that.fDSTSavings));
	61	}
	62
	63	UBool
	64	TimeZoneRule::operator!=(const TimeZoneRule& that) const {
	65	return !operator==(that);
	66	}
	67
	68	UnicodeString&
	69	TimeZoneRule::getName(UnicodeString& name) const {
	70	name = fName;
	71	return name;
	72	}
	73
	74	int32_t
	75	TimeZoneRule::getRawOffset(void) const {
	76	return fRawOffset;
	77	}
	78
	79	int32_t
	80	TimeZoneRule::getDSTSavings(void) const {
	81	return fDSTSavings;
	82	}
	83
	84	UBool
	85	TimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
	86	return ((this == &other) \|\|
729e4ab9	87	(typeid(*this) == typeid(other) &&
46f4442e A	88	fRawOffset == other.fRawOffset &&
	89	fDSTSavings == other.fDSTSavings));
	90	}
	91
	92
	93	UOBJECT_DEFINE_RTTI_IMPLEMENTATION(InitialTimeZoneRule)
	94
	95	InitialTimeZoneRule::InitialTimeZoneRule(const UnicodeString& name,
	96	int32_t rawOffset,
	97	int32_t dstSavings)
	98	: TimeZoneRule(name, rawOffset, dstSavings) {
	99	}
	100
	101	InitialTimeZoneRule::InitialTimeZoneRule(const InitialTimeZoneRule& source)
	102	: TimeZoneRule(source) {
	103	}
	104
	105	InitialTimeZoneRule::~InitialTimeZoneRule() {
	106	}
	107
	108	InitialTimeZoneRule*
	109	InitialTimeZoneRule::clone(void) const {
	110	return new InitialTimeZoneRule(*this);
	111	}
	112
	113	InitialTimeZoneRule&
	114	InitialTimeZoneRule::operator=(const InitialTimeZoneRule& right) {
	115	if (this != &right) {
	116	TimeZoneRule::operator=(right);
	117	}
	118	return *this;
	119	}
	120
	121	UBool
	122	InitialTimeZoneRule::operator==(const TimeZoneRule& that) const {
	123	return ((this == &that) \|\|
729e4ab9	124	(typeid(*this) == typeid(that) &&
46f4442e A	125	TimeZoneRule::operator==(that)));
	126	}
	127
	128	UBool
	129	InitialTimeZoneRule::operator!=(const TimeZoneRule& that) const {
	130	return !operator==(that);
	131	}
	132
	133	UBool
	134	InitialTimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
	135	if (this == &other) {
	136	return TRUE;
	137	}
729e4ab9	138	if (typeid(*this) != typeid(other) \|\| TimeZoneRule::isEquivalentTo(other) == FALSE) {
46f4442e A	139	return FALSE;
	140	}
	141	return TRUE;
	142	}
	143
	144	UBool
	145	InitialTimeZoneRule::getFirstStart(int32_t /prevRawOffset/,
	146	int32_t /prevDSTSavings/,
	147	UDate& /result/) const {
	148	return FALSE;
	149	}
	150
	151	UBool
	152	InitialTimeZoneRule::getFinalStart(int32_t /prevRawOffset/,
	153	int32_t /prevDSTSavings/,
	154	UDate& /result/) const {
	155	return FALSE;
	156	}
	157
	158	UBool
729e4ab9	159	InitialTimeZoneRule::getNextStart(UDate /base/,
46f4442e A	160	int32_t /prevRawOffset/,
	161	int32_t /prevDSTSavings/,
	162	UBool /inclusive/,
	163	UDate& /result/) const {
	164	return FALSE;
	165	}
	166
	167	UBool
729e4ab9	168	InitialTimeZoneRule::getPreviousStart(UDate /base/,
46f4442e A	169	int32_t /prevRawOffset/,
	170	int32_t /prevDSTSavings/,
	171	UBool /inclusive/,
	172	UDate& /result/) const {
	173	return FALSE;
	174	}
	175
	176
	177	UOBJECT_DEFINE_RTTI_IMPLEMENTATION(AnnualTimeZoneRule)
	178
	179	const int32_t AnnualTimeZoneRule::MAX_YEAR = 0x7FFFFFFF; /* max signed int32 */
	180
	181	AnnualTimeZoneRule::AnnualTimeZoneRule(const UnicodeString& name,
	182	int32_t rawOffset,
	183	int32_t dstSavings,
	184	const DateTimeRule& dateTimeRule,
	185	int32_t startYear,
	186	int32_t endYear)
	187	: TimeZoneRule(name, rawOffset, dstSavings), fDateTimeRule(new DateTimeRule(dateTimeRule)),
	188	fStartYear(startYear), fEndYear(endYear) {
	189	}
	190
	191	AnnualTimeZoneRule::AnnualTimeZoneRule(const UnicodeString& name,
	192	int32_t rawOffset,
	193	int32_t dstSavings,
	194	DateTimeRule* dateTimeRule,
	195	int32_t startYear,
	196	int32_t endYear)
	197	: TimeZoneRule(name, rawOffset, dstSavings), fDateTimeRule(dateTimeRule),
	198	fStartYear(startYear), fEndYear(endYear) {
	199	}
	200
	201	AnnualTimeZoneRule::AnnualTimeZoneRule(const AnnualTimeZoneRule& source)
	202	: TimeZoneRule(source), fDateTimeRule(new DateTimeRule(*(source.fDateTimeRule))),
	203	fStartYear(source.fStartYear), fEndYear(source.fEndYear) {
	204	}
	205
	206	AnnualTimeZoneRule::~AnnualTimeZoneRule() {
	207	delete fDateTimeRule;
	208	}
	209
	210	AnnualTimeZoneRule*
	211	AnnualTimeZoneRule::clone(void) const {
	212	return new AnnualTimeZoneRule(*this);
	213	}
	214
	215	AnnualTimeZoneRule&
	216	AnnualTimeZoneRule::operator=(const AnnualTimeZoneRule& right) {
	217	if (this != &right) {
	218	TimeZoneRule::operator=(right);
	219	delete fDateTimeRule;
	220	fDateTimeRule = right.fDateTimeRule->clone();
	221	fStartYear = right.fStartYear;
	222	fEndYear = right.fEndYear;
	223	}
	224	return *this;
	225	}
	226
	227	UBool
	228	AnnualTimeZoneRule::operator==(const TimeZoneRule& that) const {
	229	if (this == &that) {
	230	return TRUE;
	231	}
729e4ab9	232	if (typeid(*this) != typeid(that)) {
46f4442e A	233	return FALSE;
	234	}
	235	AnnualTimeZoneRule atzr = (AnnualTimeZoneRule)&that;
	236	return (fDateTimeRule == (atzr->fDateTimeRule) &&
	237	fStartYear == atzr->fStartYear &&
	238	fEndYear == atzr->fEndYear);
	239	}
	240
	241	UBool
	242	AnnualTimeZoneRule::operator!=(const TimeZoneRule& that) const {
	243	return !operator==(that);
	244	}
	245
	246	const DateTimeRule*
	247	AnnualTimeZoneRule::getRule() const {
	248	return fDateTimeRule;
	249	}
	250
	251	int32_t
	252	AnnualTimeZoneRule::getStartYear() const {
	253	return fStartYear;
	254	}
	255
	256	int32_t
	257	AnnualTimeZoneRule::getEndYear() const {
	258	return fEndYear;
	259	}
	260
	261	UBool
	262	AnnualTimeZoneRule::getStartInYear(int32_t year,
	263	int32_t prevRawOffset,
	264	int32_t prevDSTSavings,
	265	UDate &result) const {
	266	if (year < fStartYear \|\| year > fEndYear) {
	267	return FALSE;
	268	}
	269	double ruleDay;
	270	DateTimeRule::DateRuleType type = fDateTimeRule->getDateRuleType();
	271	if (type == DateTimeRule::DOM) {
	272	ruleDay = Grego::fieldsToDay(year, fDateTimeRule->getRuleMonth(), fDateTimeRule->getRuleDayOfMonth());
	273	} else {
	274	UBool after = TRUE;
	275	if (type == DateTimeRule::DOW) {
	276	// Normalize DOW rule into DOW_GEQ_DOM or DOW_LEQ_DOM
	277	int32_t weeks = fDateTimeRule->getRuleWeekInMonth();
	278	if (weeks > 0) {
	279	ruleDay = Grego::fieldsToDay(year, fDateTimeRule->getRuleMonth(), 1);
	280	ruleDay += 7 * (weeks - 1);
	281	} else {
	282	after = FALSE;
	283	ruleDay = Grego::fieldsToDay(year, fDateTimeRule->getRuleMonth(),
	284	Grego::monthLength(year, fDateTimeRule->getRuleMonth()));
	285	ruleDay += 7 * (weeks + 1);
	286	}
	287	} else {
	288	int32_t month = fDateTimeRule->getRuleMonth();
	289	int32_t dom = fDateTimeRule->getRuleDayOfMonth();
	290	if (type == DateTimeRule::DOW_LEQ_DOM) {
	291	after = FALSE;
	292	// Handle Feb <=29
	293	if (month == UCAL_FEBRUARY && dom == 29 && !Grego::isLeapYear(year)) {
	294	dom--;
	295	}
	296	}
297	ruleDay = Grego::fieldsToDay(year, month, dom);
298	}
299	int32_t dow = Grego::dayOfWeek(ruleDay);
300	int32_t delta = fDateTimeRule->getRuleDayOfWeek() - dow;
301	if (after) {
302	delta = delta < 0 ? delta + 7 : delta;
303	} else {
304	delta = delta > 0 ? delta - 7 : delta;
305	}
306	ruleDay += delta;
307	}
308
309	result = ruleDay*U_MILLIS_PER_DAY + fDateTimeRule->getRuleMillisInDay();
310	if (fDateTimeRule->getTimeRuleType() != DateTimeRule::UTC_TIME) {
311	result -= prevRawOffset;
312	}
313	if (fDateTimeRule->getTimeRuleType() == DateTimeRule::WALL_TIME) {
314	result -= prevDSTSavings;
315	}
316	return TRUE;
317	}
318
319	UBool
320	AnnualTimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
321	if (this == &other) {
322	return TRUE;
323	}
729e4ab9	324	if (typeid(*this) != typeid(other) \|\| TimeZoneRule::isEquivalentTo(other) == FALSE) {
46f4442e A	325	return FALSE;
	326	}
	327	AnnualTimeZoneRule* that = (AnnualTimeZoneRule*)&other;
	328	return (fDateTimeRule == (that->fDateTimeRule) &&
	329	fStartYear == that->fStartYear &&
	330	fEndYear == that->fEndYear);
	331	}
	332
	333	UBool
	334	AnnualTimeZoneRule::getFirstStart(int32_t prevRawOffset,
	335	int32_t prevDSTSavings,
	336	UDate& result) const {
	337	return getStartInYear(fStartYear, prevRawOffset, prevDSTSavings, result);
	338	}
	339
	340	UBool
	341	AnnualTimeZoneRule::getFinalStart(int32_t prevRawOffset,
	342	int32_t prevDSTSavings,
	343	UDate& result) const {
	344	if (fEndYear == MAX_YEAR) {
	345	return FALSE;
	346	}
	347	return getStartInYear(fEndYear, prevRawOffset, prevDSTSavings, result);
	348	}
	349
	350	UBool
729e4ab9	351	AnnualTimeZoneRule::getNextStart(UDate base,
46f4442e A	352	int32_t prevRawOffset,
	353	int32_t prevDSTSavings,
	354	UBool inclusive,
	355	UDate& result) const {
	356	int32_t year, month, dom, dow, doy, mid;
	357	Grego::timeToFields(base, year, month, dom, dow, doy, mid);
	358	if (year < fStartYear) {
	359	return getFirstStart(prevRawOffset, prevDSTSavings, result);
	360	}
	361	UDate tmp;
	362	if (getStartInYear(year, prevRawOffset, prevDSTSavings, tmp)) {
	363	if (tmp < base \|\| (!inclusive && (tmp == base))) {
	364	// Return the next one
	365	return getStartInYear(year + 1, prevRawOffset, prevDSTSavings, result);
	366	} else {
	367	result = tmp;
	368	return TRUE;
	369	}
	370	}
	371	return FALSE;
	372	}
	373
	374	UBool
729e4ab9	375	AnnualTimeZoneRule::getPreviousStart(UDate base,
46f4442e A	376	int32_t prevRawOffset,
	377	int32_t prevDSTSavings,
	378	UBool inclusive,
	379	UDate& result) const {
	380	int32_t year, month, dom, dow, doy, mid;
	381	Grego::timeToFields(base, year, month, dom, dow, doy, mid);
	382	if (year > fEndYear) {
	383	return getFinalStart(prevRawOffset, prevDSTSavings, result);
	384	}
	385	UDate tmp;
	386	if (getStartInYear(year, prevRawOffset, prevDSTSavings, tmp)) {
	387	if (tmp > base \|\| (!inclusive && (tmp == base))) {
	388	// Return the previous one
	389	return getStartInYear(year - 1, prevRawOffset, prevDSTSavings, result);
	390	} else {
	391	result = tmp;
	392	return TRUE;
	393	}
	394	}
	395	return FALSE;
	396	}
	397
	398	UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TimeArrayTimeZoneRule)
	399
	400	TimeArrayTimeZoneRule::TimeArrayTimeZoneRule(const UnicodeString& name,
	401	int32_t rawOffset,
	402	int32_t dstSavings,
	403	const UDate* startTimes,
	404	int32_t numStartTimes,
	405	DateTimeRule::TimeRuleType timeRuleType)
	406	: TimeZoneRule(name, rawOffset, dstSavings), fTimeRuleType(timeRuleType),
	407	fStartTimes(NULL) {
	408	UErrorCode status = U_ZERO_ERROR;
	409	initStartTimes(startTimes, numStartTimes, status);
	410	//TODO - status?
	411	}
	412
	413
	414	TimeArrayTimeZoneRule::TimeArrayTimeZoneRule(const TimeArrayTimeZoneRule& source)
	415	: TimeZoneRule(source), fTimeRuleType(source.fTimeRuleType), fStartTimes(NULL) {
	416	UErrorCode status = U_ZERO_ERROR;
	417	initStartTimes(source.fStartTimes, source.fNumStartTimes, status);
	418	//TODO - status?
	419	}
	420
	421
	422	TimeArrayTimeZoneRule::~TimeArrayTimeZoneRule() {
	423	if (fStartTimes != NULL && fStartTimes != fLocalStartTimes) {
	424	uprv_free(fStartTimes);
	425	}
	426	}
	427
	428	TimeArrayTimeZoneRule*
	429	TimeArrayTimeZoneRule::clone(void) const {
	430	return new TimeArrayTimeZoneRule(*this);
	431	}
	432
	433
	434	TimeArrayTimeZoneRule&
	435	TimeArrayTimeZoneRule::operator=(const TimeArrayTimeZoneRule& right) {
	436	if (this != &right) {
	437	TimeZoneRule::operator=(right);
	438	UErrorCode status = U_ZERO_ERROR;
	439	initStartTimes(right.fStartTimes, right.fNumStartTimes, status);
440	//TODO - status?
441	fTimeRuleType = right.fTimeRuleType;
442	}
443	return *this;
444	}
445
446	UBool
447	TimeArrayTimeZoneRule::operator==(const TimeZoneRule& that) const {
448	if (this == &that) {
449	return TRUE;
450	}
729e4ab9	451	if (typeid(*this) != typeid(that) \|\| TimeZoneRule::operator==(that) == FALSE) {
46f4442e A	452	return FALSE;
	453	}
	454	TimeArrayTimeZoneRule tatzr = (TimeArrayTimeZoneRule)&that;
	455	if (fTimeRuleType != tatzr->fTimeRuleType \|\|
	456	fNumStartTimes != tatzr->fNumStartTimes) {
	457	return FALSE;
	458	}
	459	// Compare start times
	460	UBool res = TRUE;
	461	for (int32_t i = 0; i < fNumStartTimes; i++) {
	462	if (fStartTimes[i] != tatzr->fStartTimes[i]) {
	463	res = FALSE;
	464	break;
	465	}
	466	}
	467	return res;
	468	}
	469
	470	UBool
	471	TimeArrayTimeZoneRule::operator!=(const TimeZoneRule& that) const {
	472	return !operator==(that);
	473	}
	474
	475	DateTimeRule::TimeRuleType
	476	TimeArrayTimeZoneRule::getTimeType(void) const {
	477	return fTimeRuleType;
	478	}
	479
	480	UBool
	481	TimeArrayTimeZoneRule::getStartTimeAt(int32_t index, UDate& result) const {
	482	if (index >= fNumStartTimes \|\| index < 0) {
	483	return FALSE;
	484	}
	485	result = fStartTimes[index];
	486	return TRUE;
	487	}
	488
	489	int32_t
	490	TimeArrayTimeZoneRule::countStartTimes(void) const {
	491	return fNumStartTimes;
	492	}
	493
	494	UBool
	495	TimeArrayTimeZoneRule::isEquivalentTo(const TimeZoneRule& other) const {
	496	if (this == &other) {
	497	return TRUE;
	498	}
729e4ab9	499	if (typeid(*this) != typeid(other) \|\| TimeZoneRule::isEquivalentTo(other) == FALSE) {
46f4442e A	500	return FALSE;
	501	}
	502	TimeArrayTimeZoneRule* that = (TimeArrayTimeZoneRule*)&other;
	503	if (fTimeRuleType != that->fTimeRuleType \|\|
	504	fNumStartTimes != that->fNumStartTimes) {
	505	return FALSE;
	506	}
	507	// Compare start times
	508	UBool res = TRUE;
	509	for (int32_t i = 0; i < fNumStartTimes; i++) {
	510	if (fStartTimes[i] != that->fStartTimes[i]) {
	511	res = FALSE;
	512	break;
	513	}
	514	}
	515	return res;
	516	}
	517
	518	UBool
	519	TimeArrayTimeZoneRule::getFirstStart(int32_t prevRawOffset,
	520	int32_t prevDSTSavings,
	521	UDate& result) const {
	522	if (fNumStartTimes <= 0 \|\| fStartTimes == NULL) {
	523	return FALSE;
	524	}
	525	result = getUTC(fStartTimes[0], prevRawOffset, prevDSTSavings);
	526	return TRUE;
	527	}
	528
	529	UBool
	530	TimeArrayTimeZoneRule::getFinalStart(int32_t prevRawOffset,
	531	int32_t prevDSTSavings,
	532	UDate& result) const {
	533	if (fNumStartTimes <= 0 \|\| fStartTimes == NULL) {
	534	return FALSE;
	535	}
	536	result = getUTC(fStartTimes[fNumStartTimes - 1], prevRawOffset, prevDSTSavings);
	537	return TRUE;
	538	}
	539
	540	UBool
729e4ab9	541	TimeArrayTimeZoneRule::getNextStart(UDate base,
46f4442e A	542	int32_t prevRawOffset,
	543	int32_t prevDSTSavings,
	544	UBool inclusive,
	545	UDate& result) const {
	546	int32_t i = fNumStartTimes - 1;
	547	for (; i >= 0; i--) {
	548	UDate time = getUTC(fStartTimes[i], prevRawOffset, prevDSTSavings);
	549	if (time < base \|\| (!inclusive && time == base)) {
	550	break;
	551	}
	552	result = time;
	553	}
	554	if (i == fNumStartTimes - 1) {
	555	return FALSE;
	556	}
	557	return TRUE;
	558	}
	559
	560	UBool
729e4ab9	561	TimeArrayTimeZoneRule::getPreviousStart(UDate base,
46f4442e A	562	int32_t prevRawOffset,
	563	int32_t prevDSTSavings,
	564	UBool inclusive,
	565	UDate& result) const {
	566	int32_t i = fNumStartTimes - 1;
	567	for (; i >= 0; i--) {
	568	UDate time = getUTC(fStartTimes[i], prevRawOffset, prevDSTSavings);
	569	if (time < base \|\| (inclusive && time == base)) {
	570	result = time;
	571	return TRUE;
	572	}
	573	}
	574	return FALSE;
	575	}
	576
	577
	578	// ---- private methods ------
	579
	580	UBool
	581	TimeArrayTimeZoneRule::initStartTimes(const UDate source[], int32_t size, UErrorCode& status) {
	582	// Free old array
	583	if (fStartTimes != NULL && fStartTimes != fLocalStartTimes) {
	584	uprv_free(fStartTimes);
	585	}
	586	// Allocate new one if needed
	587	if (size > TIMEARRAY_STACK_BUFFER_SIZE) {
	588	fStartTimes = (UDate)uprv_malloc(sizeof(UDate)size);
	589	if (fStartTimes == NULL) {
	590	status = U_MEMORY_ALLOCATION_ERROR;
	591	fNumStartTimes = 0;
	592	return FALSE;
	593	}
	594	} else {
	595	fStartTimes = (UDate*)fLocalStartTimes;
	596	}
	597	uprv_memcpy(fStartTimes, source, sizeof(UDate)*size);
	598	fNumStartTimes = size;
	599	// Sort dates
	600	uprv_sortArray(fStartTimes, fNumStartTimes, (int32_t)sizeof(UDate), compareDates, NULL, TRUE, &status);
	601	if (U_FAILURE(status)) {
	602	if (fStartTimes != NULL && fStartTimes != fLocalStartTimes) {
	603	uprv_free(fStartTimes);
	604	}
	605	fNumStartTimes = 0;
	606	return FALSE;
	607	}
	608	return TRUE;
	609	}
	610
	611	UDate
	612	TimeArrayTimeZoneRule::getUTC(UDate time, int32_t raw, int32_t dst) const {
	613	if (fTimeRuleType != DateTimeRule::UTC_TIME) {
	614	time -= raw;
	615	}
	616	if (fTimeRuleType == DateTimeRule::WALL_TIME) {
	617	time -= dst;
	618	}
	619	return time;
	620	}
	621
	622	U_NAMESPACE_END
	623
	624	#endif /* #if !UCONFIG_NO_FORMATTING */
	625
626	//eof
627