1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/icu/source/i18n/wintzimpl.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,157 @@
1.4 +/*
1.5 +********************************************************************************
1.6 +* Copyright (C) 2009-2011, International Business Machines
1.7 +* Corporation and others. All Rights Reserved.
1.8 +********************************************************************************
1.9 +*
1.10 +* File WINTZIMPL.CPP
1.11 +*
1.12 +********************************************************************************
1.13 +*/
1.14 +
1.15 +#include "unicode/utypes.h"
1.16 +
1.17 +#if U_PLATFORM_HAS_WIN32_API
1.18 +
1.19 +#include "wintzimpl.h"
1.20 +
1.21 +#include "unicode/unistr.h"
1.22 +#include "unicode/timezone.h"
1.23 +#include "unicode/basictz.h"
1.24 +#include "putilimp.h"
1.25 +#include "uassert.h"
1.26 +#include "cmemory.h"
1.27 +
1.28 +# define WIN32_LEAN_AND_MEAN
1.29 +# define VC_EXTRALEAN
1.30 +# define NOUSER
1.31 +# define NOSERVICE
1.32 +# define NOIME
1.33 +# define NOMCX
1.34 +
1.35 +#include <windows.h>
1.36 +
1.37 +U_NAMESPACE_USE
1.38 +
1.39 +static UBool getSystemTimeInformation(TimeZone *tz, SYSTEMTIME &daylightDate, SYSTEMTIME &standardDate, int32_t &bias, int32_t &daylightBias, int32_t &standardBias) {
1.40 + UErrorCode status = U_ZERO_ERROR;
1.41 + UBool result = TRUE;
1.42 + BasicTimeZone *btz = (BasicTimeZone*)tz; // we should check type
1.43 + InitialTimeZoneRule *initial = NULL;
1.44 + AnnualTimeZoneRule *std = NULL, *dst = NULL;
1.45 +
1.46 + btz->getSimpleRulesNear(uprv_getUTCtime(), initial, std, dst, status);
1.47 + if (U_SUCCESS(status)) {
1.48 + if (std == NULL || dst == NULL) {
1.49 + bias = -1 * (initial->getRawOffset()/60000);
1.50 + standardBias = 0;
1.51 + daylightBias = 0;
1.52 + // Do not use DST. Set 0 to all stadardDate/daylightDate fields
1.53 + standardDate.wYear = standardDate.wMonth = standardDate.wDayOfWeek = standardDate.wDay =
1.54 + standardDate.wHour = standardDate.wMinute = standardDate.wSecond = standardDate.wMilliseconds = 0;
1.55 + daylightDate.wYear = daylightDate.wMonth = daylightDate.wDayOfWeek = daylightDate.wDay =
1.56 + daylightDate.wHour = daylightDate.wMinute = daylightDate.wSecond = daylightDate.wMilliseconds = 0;
1.57 + } else {
1.58 + U_ASSERT(std->getRule()->getDateRuleType() == DateTimeRule::DOW);
1.59 + U_ASSERT(dst->getRule()->getDateRuleType() == DateTimeRule::DOW);
1.60 +
1.61 + bias = -1 * (std->getRawOffset()/60000);
1.62 + standardBias = 0;
1.63 + daylightBias = -1 * (dst->getDSTSavings()/60000);
1.64 + // Always use DOW type rule
1.65 + int32_t hour, min, sec, mil;
1.66 + standardDate.wYear = 0;
1.67 + standardDate.wMonth = std->getRule()->getRuleMonth() + 1;
1.68 + standardDate.wDay = std->getRule()->getRuleWeekInMonth();
1.69 + if (standardDate.wDay < 0) {
1.70 + standardDate.wDay = 5;
1.71 + }
1.72 + standardDate.wDayOfWeek = std->getRule()->getRuleDayOfWeek() - 1;
1.73 +
1.74 + mil = std->getRule()->getRuleMillisInDay();
1.75 + hour = mil/3600000;
1.76 + mil %= 3600000;
1.77 + min = mil/60000;
1.78 + mil %= 60000;
1.79 + sec = mil/1000;
1.80 + mil %= 1000;
1.81 +
1.82 + standardDate.wHour = hour;
1.83 + standardDate.wMinute = min;
1.84 + standardDate.wSecond = sec;
1.85 + standardDate.wMilliseconds = mil;
1.86 +
1.87 + daylightDate.wYear = 0;
1.88 + daylightDate.wMonth = dst->getRule()->getRuleMonth() + 1;
1.89 + daylightDate.wDay = dst->getRule()->getRuleWeekInMonth();
1.90 + if (daylightDate.wDay < 0) {
1.91 + daylightDate.wDay = 5;
1.92 + }
1.93 + daylightDate.wDayOfWeek = dst->getRule()->getRuleDayOfWeek() - 1;
1.94 +
1.95 + mil = dst->getRule()->getRuleMillisInDay();
1.96 + hour = mil/3600000;
1.97 + mil %= 3600000;
1.98 + min = mil/60000;
1.99 + mil %= 60000;
1.100 + sec = mil/1000;
1.101 + mil %= 1000;
1.102 +
1.103 + daylightDate.wHour = hour;
1.104 + daylightDate.wMinute = min;
1.105 + daylightDate.wSecond = sec;
1.106 + daylightDate.wMilliseconds = mil;
1.107 + }
1.108 + } else {
1.109 + result = FALSE;
1.110 + }
1.111 +
1.112 + delete initial;
1.113 + delete std;
1.114 + delete dst;
1.115 +
1.116 + return result;
1.117 +}
1.118 +
1.119 +static UBool getWindowsTimeZoneInfo(TIME_ZONE_INFORMATION *zoneInfo, const UChar *icuid, int32_t length) {
1.120 + UBool result = FALSE;
1.121 + UnicodeString id = UnicodeString(icuid, length);
1.122 + TimeZone *tz = TimeZone::createTimeZone(id);
1.123 +
1.124 + if (tz != NULL) {
1.125 + int32_t bias;
1.126 + int32_t daylightBias;
1.127 + int32_t standardBias;
1.128 + SYSTEMTIME daylightDate;
1.129 + SYSTEMTIME standardDate;
1.130 +
1.131 + if (getSystemTimeInformation(tz, daylightDate, standardDate, bias, daylightBias, standardBias)) {
1.132 + uprv_memset(zoneInfo, 0, sizeof(TIME_ZONE_INFORMATION)); // We do not set standard/daylight names, so nullify first.
1.133 + zoneInfo->Bias = bias;
1.134 + zoneInfo->DaylightBias = daylightBias;
1.135 + zoneInfo->StandardBias = standardBias;
1.136 + zoneInfo->DaylightDate = daylightDate;
1.137 + zoneInfo->StandardDate = standardDate;
1.138 +
1.139 + result = TRUE;
1.140 + }
1.141 + }
1.142 +
1.143 + return result;
1.144 +}
1.145 +
1.146 +/*
1.147 + * Given the timezone icuid, fill in zoneInfo by calling auxillary functions that creates a timezone and extract the
1.148 + * information to put into zoneInfo. This includes bias and standard time date and daylight saving date.
1.149 + */
1.150 +U_CAPI UBool U_EXPORT2
1.151 +uprv_getWindowsTimeZoneInfo(TIME_ZONE_INFORMATION *zoneInfo, const UChar *icuid, int32_t length)
1.152 +{
1.153 + if (getWindowsTimeZoneInfo(zoneInfo, icuid, length)) {
1.154 + return TRUE;
1.155 + } else {
1.156 + return FALSE;
1.157 + }
1.158 +}
1.159 +
1.160 +#endif
