1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/icu/source/i18n/coptccal.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,162 @@
1.4 +/*
1.5 +*******************************************************************************
1.6 +* Copyright (C) 2003 - 2013, International Business Machines Corporation and
1.7 +* others. All Rights Reserved.
1.8 +*******************************************************************************
1.9 +*/
1.10 +
1.11 +#include "unicode/utypes.h"
1.12 +
1.13 +#if !UCONFIG_NO_FORMATTING
1.14 +
1.15 +#include "umutex.h"
1.16 +#include "coptccal.h"
1.17 +#include "cecal.h"
1.18 +#include <float.h>
1.19 +
1.20 +U_NAMESPACE_BEGIN
1.21 +
1.22 +UOBJECT_DEFINE_RTTI_IMPLEMENTATION(CopticCalendar)
1.23 +
1.24 +static const int32_t COPTIC_JD_EPOCH_OFFSET = 1824665;
1.25 +
1.26 +//-------------------------------------------------------------------------
1.27 +// Constructors...
1.28 +//-------------------------------------------------------------------------
1.29 +
1.30 +CopticCalendar::CopticCalendar(const Locale& aLocale, UErrorCode& success)
1.31 +: CECalendar(aLocale, success)
1.32 +{
1.33 +}
1.34 +
1.35 +CopticCalendar::CopticCalendar (const CopticCalendar& other)
1.36 +: CECalendar(other)
1.37 +{
1.38 +}
1.39 +
1.40 +CopticCalendar::~CopticCalendar()
1.41 +{
1.42 +}
1.43 +
1.44 +Calendar*
1.45 +CopticCalendar::clone() const
1.46 +{
1.47 + return new CopticCalendar(*this);
1.48 +}
1.49 +
1.50 +const char*
1.51 +CopticCalendar::getType() const
1.52 +{
1.53 + return "coptic";
1.54 +}
1.55 +
1.56 +//-------------------------------------------------------------------------
1.57 +// Calendar framework
1.58 +//-------------------------------------------------------------------------
1.59 +
1.60 +int32_t
1.61 +CopticCalendar::handleGetExtendedYear()
1.62 +{
1.63 + int32_t eyear;
1.64 + if (newerField(UCAL_EXTENDED_YEAR, UCAL_YEAR) == UCAL_EXTENDED_YEAR) {
1.65 + eyear = internalGet(UCAL_EXTENDED_YEAR, 1); // Default to year 1
1.66 + } else {
1.67 + // The year defaults to the epoch start, the era to CE
1.68 + int32_t era = internalGet(UCAL_ERA, CE);
1.69 + if (era == BCE) {
1.70 + eyear = 1 - internalGet(UCAL_YEAR, 1); // Convert to extended year
1.71 + } else {
1.72 + eyear = internalGet(UCAL_YEAR, 1); // Default to year 1
1.73 + }
1.74 + }
1.75 + return eyear;
1.76 +}
1.77 +
1.78 +void
1.79 +CopticCalendar::handleComputeFields(int32_t julianDay, UErrorCode &/*status*/)
1.80 +{
1.81 + int32_t eyear, month, day, era, year;
1.82 + jdToCE(julianDay, getJDEpochOffset(), eyear, month, day);
1.83 +
1.84 + if (eyear <= 0) {
1.85 + era = BCE;
1.86 + year = 1 - eyear;
1.87 + } else {
1.88 + era = CE;
1.89 + year = eyear;
1.90 + }
1.91 +
1.92 + internalSet(UCAL_EXTENDED_YEAR, eyear);
1.93 + internalSet(UCAL_ERA, era);
1.94 + internalSet(UCAL_YEAR, year);
1.95 + internalSet(UCAL_MONTH, month);
1.96 + internalSet(UCAL_DATE, day);
1.97 + internalSet(UCAL_DAY_OF_YEAR, (30 * month) + day);
1.98 +}
1.99 +
1.100 +/**
1.101 + * The system maintains a static default century start date and Year. They are
1.102 + * initialized the first time they are used. Once the system default century date
1.103 + * and year are set, they do not change.
1.104 + */
1.105 +static UDate gSystemDefaultCenturyStart = DBL_MIN;
1.106 +static int32_t gSystemDefaultCenturyStartYear = -1;
1.107 +static icu::UInitOnce gSystemDefaultCenturyInit = U_INITONCE_INITIALIZER;
1.108 +
1.109 +
1.110 +static void U_CALLCONV initializeSystemDefaultCentury() {
1.111 + UErrorCode status = U_ZERO_ERROR;
1.112 + CopticCalendar calendar(Locale("@calendar=coptic"), status);
1.113 + if (U_SUCCESS(status)) {
1.114 + calendar.setTime(Calendar::getNow(), status);
1.115 + calendar.add(UCAL_YEAR, -80, status);
1.116 + gSystemDefaultCenturyStart = calendar.getTime(status);
1.117 + gSystemDefaultCenturyStartYear = calendar.get(UCAL_YEAR, status);
1.118 + }
1.119 + // We have no recourse upon failure unless we want to propagate the failure
1.120 + // out.
1.121 +}
1.122 +
1.123 +UDate
1.124 +CopticCalendar::defaultCenturyStart() const
1.125 +{
1.126 + // lazy-evaluate systemDefaultCenturyStart
1.127 + umtx_initOnce(gSystemDefaultCenturyInit, &initializeSystemDefaultCentury);
1.128 + return gSystemDefaultCenturyStart;
1.129 +}
1.130 +
1.131 +int32_t
1.132 +CopticCalendar::defaultCenturyStartYear() const
1.133 +{
1.134 + // lazy-evaluate systemDefaultCenturyStart
1.135 + umtx_initOnce(gSystemDefaultCenturyInit, &initializeSystemDefaultCentury);
1.136 + return gSystemDefaultCenturyStartYear;
1.137 +}
1.138 +
1.139 +
1.140 +int32_t
1.141 +CopticCalendar::getJDEpochOffset() const
1.142 +{
1.143 + return COPTIC_JD_EPOCH_OFFSET;
1.144 +}
1.145 +
1.146 +
1.147 +#if 0
1.148 +// We do not want to introduce this API in ICU4C.
1.149 +// It was accidentally introduced in ICU4J as a public API.
1.150 +
1.151 +//-------------------------------------------------------------------------
1.152 +// Calendar system Conversion methods...
1.153 +//-------------------------------------------------------------------------
1.154 +
1.155 +int32_t
1.156 +CopticCalendar::copticToJD(int32_t year, int32_t month, int32_t day)
1.157 +{
1.158 + return CECalendar::ceToJD(year, month, day, COPTIC_JD_EPOCH_OFFSET);
1.159 +}
1.160 +#endif
1.161 +
1.162 +U_NAMESPACE_END
1.163 +
1.164 +#endif /* #if !UCONFIG_NO_FORMATTING */
1.165 +//eof
