| /* |
| ******************************************************************************* |
| * Copyright (C) 2003 - 2009, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| |
| #include "unicode/utypes.h" |
| |
| #if !UCONFIG_NO_FORMATTING |
| |
| #include "cecal.h" |
| #include "gregoimp.h" //Math |
| |
| U_NAMESPACE_BEGIN |
| |
| static const int32_t LIMITS[UCAL_FIELD_COUNT][4] = { |
| // Minimum Greatest Least Maximum |
| // Minimum Maximum |
| { 0, 0, 1, 1}, // ERA |
| { 1, 1, 5000000, 5000000}, // YEAR |
| { 0, 0, 12, 12}, // MONTH |
| { 1, 1, 52, 53}, // WEEK_OF_YEAR |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // WEEK_OF_MONTH |
| { 1, 1, 5, 30}, // DAY_OF_MONTH |
| { 1, 1, 365, 366}, // DAY_OF_YEAR |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // DAY_OF_WEEK |
| { -1, -1, 1, 5}, // DAY_OF_WEEK_IN_MONTH |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // AM_PM |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // HOUR |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // HOUR_OF_DAY |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // MINUTE |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // SECOND |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // MILLISECOND |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // ZONE_OFFSET |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // DST_OFFSET |
| { -5000000, -5000000, 5000000, 5000000}, // YEAR_WOY |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // DOW_LOCAL |
| { -5000000, -5000000, 5000000, 5000000}, // EXTENDED_YEAR |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // JULIAN_DAY |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // MILLISECONDS_IN_DAY |
| {/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // IS_LEAP_MONTH |
| }; |
| |
| //------------------------------------------------------------------------- |
| // Constructors... |
| //------------------------------------------------------------------------- |
| |
| CECalendar::CECalendar(const Locale& aLocale, UErrorCode& success) |
| : Calendar(TimeZone::createDefault(), aLocale, success) |
| { |
| setTimeInMillis(getNow(), success); |
| } |
| |
| CECalendar::CECalendar (const CECalendar& other) |
| : Calendar(other) |
| { |
| } |
| |
| CECalendar::~CECalendar() |
| { |
| } |
| |
| CECalendar& |
| CECalendar::operator=(const CECalendar& right) |
| { |
| Calendar::operator=(right); |
| return *this; |
| } |
| |
| //------------------------------------------------------------------------- |
| // Calendar framework |
| //------------------------------------------------------------------------- |
| |
| int32_t |
| CECalendar::handleComputeMonthStart(int32_t eyear,int32_t emonth, UBool /*useMonth*/) const |
| { |
| return ceToJD(eyear, emonth, 0, getJDEpochOffset()); |
| } |
| |
| int32_t |
| CECalendar::handleGetLimit(UCalendarDateFields field, ELimitType limitType) const |
| { |
| return LIMITS[field][limitType]; |
| } |
| |
| UBool |
| CECalendar::inDaylightTime(UErrorCode& status) const |
| { |
| if (U_FAILURE(status) || !getTimeZone().useDaylightTime()) { |
| return FALSE; |
| } |
| |
| // Force an update of the state of the Calendar. |
| ((CECalendar*)this)->complete(status); // cast away const |
| |
| return (UBool)(U_SUCCESS(status) ? (internalGet(UCAL_DST_OFFSET) != 0) : FALSE); |
| } |
| |
| UBool |
| CECalendar::haveDefaultCentury() const |
| { |
| return TRUE; |
| } |
| |
| //------------------------------------------------------------------------- |
| // Calendar system Conversion methods... |
| //------------------------------------------------------------------------- |
| int32_t |
| CECalendar::ceToJD(int32_t year, int32_t month, int32_t date, int32_t jdEpochOffset) |
| { |
| // handle month > 12, < 0 (e.g. from add/set) |
| if ( month >= 0 ) { |
| year += month/13; |
| month %= 13; |
| } else { |
| ++month; |
| year += month/13 - 1; |
| month = month%13 + 12; |
| } |
| return (int32_t) ( |
| jdEpochOffset // difference from Julian epoch to 1,1,1 |
| + 365 * year // number of days from years |
| + ClockMath::floorDivide(year, 4) // extra day of leap year |
| + 30 * month // number of days from months (months are 0-based) |
| + date - 1 // number of days for present month (1 based) |
| ); |
| } |
| |
| void |
| CECalendar::jdToCE(int32_t julianDay, int32_t jdEpochOffset, int32_t& year, int32_t& month, int32_t& day) |
| { |
| int32_t c4; // number of 4 year cycle (1461 days) |
| int32_t r4; // remainder of 4 year cycle, always positive |
| |
| c4 = ClockMath::floorDivide(julianDay - jdEpochOffset, 1461, r4); |
| |
| year = 4 * c4 + (r4/365 - r4/1460); // 4 * <number of 4year cycle> + <years within the last cycle> |
| |
| int32_t doy = (r4 == 1460) ? 365 : (r4 % 365); // days in present year |
| |
| month = doy / 30; // 30 -> Coptic/Ethiopic month length up to 12th month |
| day = (doy % 30) + 1; // 1-based days in a month |
| } |
| |
| U_NAMESPACE_END |
| |
| #endif /* #if !UCONFIG_NO_FORMATTING */ |
| //eof |
