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Diffstat (limited to 'src/mscorlib/corefx/System/Globalization/EastAsianLunisolarCalendar.cs')
| -rw-r--r-- | src/mscorlib/corefx/System/Globalization/EastAsianLunisolarCalendar.cs | 717 |
1 files changed, 0 insertions, 717 deletions
diff --git a/src/mscorlib/corefx/System/Globalization/EastAsianLunisolarCalendar.cs b/src/mscorlib/corefx/System/Globalization/EastAsianLunisolarCalendar.cs deleted file mode 100644 index f82fad8e5b..0000000000 --- a/src/mscorlib/corefx/System/Globalization/EastAsianLunisolarCalendar.cs +++ /dev/null @@ -1,717 +0,0 @@ -// Licensed to the .NET Foundation under one or more agreements. -// The .NET Foundation licenses this file to you under the MIT license. -// See the LICENSE file in the project root for more information. - -using System; -using System.Diagnostics.Contracts; - -namespace System.Globalization -{ - //////////////////////////////////////////////////////////////////////////// - // - // Notes about EastAsianLunisolarCalendar - // - //////////////////////////////////////////////////////////////////////////// - - [Serializable] - public abstract class EastAsianLunisolarCalendar : Calendar - { - internal const int LeapMonth = 0; - internal const int Jan1Month = 1; - internal const int Jan1Date = 2; - internal const int nDaysPerMonth = 3; - - // # of days so far in the solar year - internal static readonly int[] DaysToMonth365 = - { - 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 - }; - - internal static readonly int[] DaysToMonth366 = - { - 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 - }; - - internal const int DatePartYear = 0; - internal const int DatePartDayOfYear = 1; - internal const int DatePartMonth = 2; - internal const int DatePartDay = 3; - - public override CalendarAlgorithmType AlgorithmType - { - get - { - return CalendarAlgorithmType.LunisolarCalendar; - } - } - - // Return the year number in the 60-year cycle. - // - - public virtual int GetSexagenaryYear(DateTime time) - { - CheckTicksRange(time.Ticks); - - int year = 0, month = 0, day = 0; - TimeToLunar(time, ref year, ref month, ref day); - - return ((year - 4) % 60) + 1; - } - - // Return the celestial year from the 60-year cycle. - // The returned value is from 1 ~ 10. - // - - public int GetCelestialStem(int sexagenaryYear) - { - if ((sexagenaryYear < 1) || (sexagenaryYear > 60)) - { - throw new ArgumentOutOfRangeException( - nameof(sexagenaryYear), - SR.Format(SR.ArgumentOutOfRange_Range, 1, 60)); - } - Contract.EndContractBlock(); - - return ((sexagenaryYear - 1) % 10) + 1; - } - - // Return the Terrestial Branch from the the 60-year cycle. - // The returned value is from 1 ~ 12. - // - - public int GetTerrestrialBranch(int sexagenaryYear) - { - if ((sexagenaryYear < 1) || (sexagenaryYear > 60)) - { - throw new ArgumentOutOfRangeException( - nameof(sexagenaryYear), - SR.Format(SR.ArgumentOutOfRange_Range, 1, 60)); - } - Contract.EndContractBlock(); - - return ((sexagenaryYear - 1) % 12) + 1; - } - - internal abstract int GetYearInfo(int LunarYear, int Index); - internal abstract int GetYear(int year, DateTime time); - internal abstract int GetGregorianYear(int year, int era); - - internal abstract int MinCalendarYear { get; } - internal abstract int MaxCalendarYear { get; } - internal abstract EraInfo[] CalEraInfo { get; } - internal abstract DateTime MinDate { get; } - internal abstract DateTime MaxDate { get; } - - internal const int MaxCalendarMonth = 13; - internal const int MaxCalendarDay = 30; - - internal int MinEraCalendarYear(int era) - { - EraInfo[] mEraInfo = CalEraInfo; - //ChineseLunisolarCalendar does not has m_EraInfo it is going to retuen null - if (mEraInfo == null) - { - return MinCalendarYear; - } - - if (era == Calendar.CurrentEra) - { - era = CurrentEraValue; - } - //era has to be in the supported range otherwise we will throw exception in CheckEraRange() - if (era == GetEra(MinDate)) - { - return (GetYear(MinCalendarYear, MinDate)); - } - - for (int i = 0; i < mEraInfo.Length; i++) - { - if (era == mEraInfo[i].era) - { - return (mEraInfo[i].minEraYear); - } - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - internal int MaxEraCalendarYear(int era) - { - EraInfo[] mEraInfo = CalEraInfo; - //ChineseLunisolarCalendar does not has m_EraInfo it is going to retuen null - if (mEraInfo == null) - { - return MaxCalendarYear; - } - - if (era == Calendar.CurrentEra) - { - era = CurrentEraValue; - } - //era has to be in the supported range otherwise we will throw exception in CheckEraRange() - if (era == GetEra(MaxDate)) - { - return (GetYear(MaxCalendarYear, MaxDate)); - } - - for (int i = 0; i < mEraInfo.Length; i++) - { - if (era == mEraInfo[i].era) - { - return (mEraInfo[i].maxEraYear); - } - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - internal EastAsianLunisolarCalendar() - { - } - - internal void CheckTicksRange(long ticks) - { - if (ticks < MinSupportedDateTime.Ticks || ticks > MaxSupportedDateTime.Ticks) - { - throw new ArgumentOutOfRangeException( - "time", - String.Format(CultureInfo.InvariantCulture, SR.ArgumentOutOfRange_CalendarRange, - MinSupportedDateTime, MaxSupportedDateTime)); - } - Contract.EndContractBlock(); - } - - internal void CheckEraRange(int era) - { - if (era == Calendar.CurrentEra) - { - era = CurrentEraValue; - } - - if ((era < GetEra(MinDate)) || (era > GetEra(MaxDate))) - { - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - } - - internal int CheckYearRange(int year, int era) - { - CheckEraRange(era); - year = GetGregorianYear(year, era); - - if ((year < MinCalendarYear) || (year > MaxCalendarYear)) - { - throw new ArgumentOutOfRangeException( - nameof(year), - SR.Format(SR.ArgumentOutOfRange_Range, MinEraCalendarYear(era), MaxEraCalendarYear(era))); - } - return year; - } - - internal int CheckYearMonthRange(int year, int month, int era) - { - year = CheckYearRange(year, era); - - if (month == 13) - { - //Reject if there is no leap month this year - if (GetYearInfo(year, LeapMonth) == 0) - throw new ArgumentOutOfRangeException(nameof(month), SR.ArgumentOutOfRange_Month); - } - - if (month < 1 || month > 13) - { - throw new ArgumentOutOfRangeException(nameof(month), SR.ArgumentOutOfRange_Month); - } - return year; - } - - internal int InternalGetDaysInMonth(int year, int month) - { - int nDays; - int mask; // mask for extracting bits - - mask = 0x8000; - // convert the lunar day into a lunar month/date - mask >>= (month - 1); - if ((GetYearInfo(year, nDaysPerMonth) & mask) == 0) - nDays = 29; - else - nDays = 30; - return nDays; - } - - // Returns the number of days in the month given by the year and - // month arguments. - // - - public override int GetDaysInMonth(int year, int month, int era) - { - year = CheckYearMonthRange(year, month, era); - return InternalGetDaysInMonth(year, month); - } - - private static int GregorianIsLeapYear(int y) - { - return ((((y) % 4) != 0) ? 0 : ((((y) % 100) != 0) ? 1 : ((((y) % 400) != 0) ? 0 : 1))); - } - - // Returns the date and time converted to a DateTime value. Throws an exception if the n-tuple is invalid. - // - - public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era) - { - year = CheckYearMonthRange(year, month, era); - int daysInMonth = InternalGetDaysInMonth(year, month); - if (day < 1 || day > daysInMonth) - { - throw new ArgumentOutOfRangeException( - nameof(day), - SR.Format(SR.ArgumentOutOfRange_Day, daysInMonth, month)); - } - - int gy = 0; int gm = 0; int gd = 0; - - if (LunarToGregorian(year, month, day, ref gy, ref gm, ref gd)) - { - return new DateTime(gy, gm, gd, hour, minute, second, millisecond); - } - else - { - throw new ArgumentOutOfRangeException(null, SR.ArgumentOutOfRange_BadYearMonthDay); - } - } - - - // - // GregorianToLunar calculates lunar calendar info for the given gregorian year, month, date. - // The input date should be validated before calling this method. - // - internal void GregorianToLunar(int nSYear, int nSMonth, int nSDate, ref int nLYear, ref int nLMonth, ref int nLDate) - { - // unsigned int nLYear, nLMonth, nLDate; // lunar ymd - int nSolarDay; // day # in solar year - int nLunarDay; // day # in lunar year - int fLeap; // is it a solar leap year? - int LDpM; // lunar days/month bitfield - int mask; // mask for extracting bits - int nDays; // # days this lunar month - int nJan1Month, nJan1Date; - - // calc the solar day of year - fLeap = GregorianIsLeapYear(nSYear); - nSolarDay = (fLeap == 1) ? DaysToMonth366[nSMonth - 1] : DaysToMonth365[nSMonth - 1]; - nSolarDay += nSDate; - - // init lunar year info - nLunarDay = nSolarDay; - nLYear = nSYear; - if (nLYear == (MaxCalendarYear + 1)) - { - nLYear--; - nLunarDay += ((GregorianIsLeapYear(nLYear) == 1) ? 366 : 365); - nJan1Month = GetYearInfo(nLYear, Jan1Month); - nJan1Date = GetYearInfo(nLYear, Jan1Date); - } - else - { - nJan1Month = GetYearInfo(nLYear, Jan1Month); - nJan1Date = GetYearInfo(nLYear, Jan1Date); - - // check if this solar date is actually part of the previous - // lunar year - if ((nSMonth < nJan1Month) || - (nSMonth == nJan1Month && nSDate < nJan1Date)) - { - // the corresponding lunar day is actually part of the previous - // lunar year - nLYear--; - - // add a solar year to the lunar day # - nLunarDay += ((GregorianIsLeapYear(nLYear) == 1) ? 366 : 365); - - // update the new start of year - nJan1Month = GetYearInfo(nLYear, Jan1Month); - nJan1Date = GetYearInfo(nLYear, Jan1Date); - } - } - - // convert solar day into lunar day. - // subtract off the beginning part of the solar year which is not - // part of the lunar year. since this part is always in Jan or Feb, - // we don't need to handle Leap Year (LY only affects March - // and later). - nLunarDay -= DaysToMonth365[nJan1Month - 1]; - nLunarDay -= (nJan1Date - 1); - - // convert the lunar day into a lunar month/date - mask = 0x8000; - LDpM = GetYearInfo(nLYear, nDaysPerMonth); - nDays = ((LDpM & mask) != 0) ? 30 : 29; - nLMonth = 1; - while (nLunarDay > nDays) - { - nLunarDay -= nDays; - nLMonth++; - mask >>= 1; - nDays = ((LDpM & mask) != 0) ? 30 : 29; - } - nLDate = nLunarDay; - } - - /* - //Convert from Lunar to Gregorian - //Highly inefficient, but it works based on the forward conversion - */ - internal bool LunarToGregorian(int nLYear, int nLMonth, int nLDate, ref int nSolarYear, ref int nSolarMonth, ref int nSolarDay) - { - int numLunarDays; - - if (nLDate < 1 || nLDate > 30) - return false; - - numLunarDays = nLDate - 1; - - //Add previous months days to form the total num of days from the first of the month. - for (int i = 1; i < nLMonth; i++) - { - numLunarDays += InternalGetDaysInMonth(nLYear, i); - } - - //Get Gregorian First of year - int nJan1Month = GetYearInfo(nLYear, Jan1Month); - int nJan1Date = GetYearInfo(nLYear, Jan1Date); - - // calc the solar day of year of 1 Lunar day - int fLeap = GregorianIsLeapYear(nLYear); - int[] days = (fLeap == 1) ? DaysToMonth366 : DaysToMonth365; - - nSolarDay = nJan1Date; - - if (nJan1Month > 1) - nSolarDay += days[nJan1Month - 1]; - - // Add the actual lunar day to get the solar day we want - nSolarDay = nSolarDay + numLunarDays;// - 1; - - if (nSolarDay > (fLeap + 365)) - { - nSolarYear = nLYear + 1; - nSolarDay -= (fLeap + 365); - } - else - { - nSolarYear = nLYear; - } - - for (nSolarMonth = 1; nSolarMonth < 12; nSolarMonth++) - { - if (days[nSolarMonth] >= nSolarDay) - break; - } - - nSolarDay -= days[nSolarMonth - 1]; - return true; - } - - internal DateTime LunarToTime(DateTime time, int year, int month, int day) - { - int gy = 0; int gm = 0; int gd = 0; - LunarToGregorian(year, month, day, ref gy, ref gm, ref gd); - return (GregorianCalendar.GetDefaultInstance().ToDateTime(gy, gm, gd, time.Hour, time.Minute, time.Second, time.Millisecond)); - } - - internal void TimeToLunar(DateTime time, ref int year, ref int month, ref int day) - { - int gy = 0; int gm = 0; int gd = 0; - - Calendar Greg = GregorianCalendar.GetDefaultInstance(); - gy = Greg.GetYear(time); - gm = Greg.GetMonth(time); - gd = Greg.GetDayOfMonth(time); - - GregorianToLunar(gy, gm, gd, ref year, ref month, ref day); - } - - // Returns the DateTime resulting from adding the given number of - // months to the specified DateTime. The result is computed by incrementing - // (or decrementing) the year and month parts of the specified DateTime by - // value months, and, if required, adjusting the day part of the - // resulting date downwards to the last day of the resulting month in the - // resulting year. The time-of-day part of the result is the same as the - // time-of-day part of the specified DateTime. - // - - public override DateTime AddMonths(DateTime time, int months) - { - if (months < -120000 || months > 120000) - { - throw new ArgumentOutOfRangeException( - nameof(months), - SR.Format(SR.ArgumentOutOfRange_Range, -120000, 120000)); - } - Contract.EndContractBlock(); - - CheckTicksRange(time.Ticks); - - int y = 0; int m = 0; int d = 0; - TimeToLunar(time, ref y, ref m, ref d); - - int i = m + months; - if (i > 0) - { - int monthsInYear = InternalIsLeapYear(y) ? 13 : 12; - - while (i - monthsInYear > 0) - { - i -= monthsInYear; - y++; - monthsInYear = InternalIsLeapYear(y) ? 13 : 12; - } - m = i; - } - else - { - int monthsInYear; - while (i <= 0) - { - monthsInYear = InternalIsLeapYear(y - 1) ? 13 : 12; - i += monthsInYear; - y--; - } - m = i; - } - - int days = InternalGetDaysInMonth(y, m); - if (d > days) - { - d = days; - } - DateTime dt = LunarToTime(time, y, m, d); - - CheckAddResult(dt.Ticks, MinSupportedDateTime, MaxSupportedDateTime); - return (dt); - } - - - public override DateTime AddYears(DateTime time, int years) - { - CheckTicksRange(time.Ticks); - - int y = 0; int m = 0; int d = 0; - TimeToLunar(time, ref y, ref m, ref d); - - y += years; - - if (m == 13 && !InternalIsLeapYear(y)) - { - m = 12; - d = InternalGetDaysInMonth(y, m); - } - int DaysInMonths = InternalGetDaysInMonth(y, m); - if (d > DaysInMonths) - { - d = DaysInMonths; - } - - DateTime dt = LunarToTime(time, y, m, d); - CheckAddResult(dt.Ticks, MinSupportedDateTime, MaxSupportedDateTime); - return (dt); - } - - // Returns the day-of-year part of the specified DateTime. The returned value - // is an integer between 1 and [354|355 |383|384]. - // - - public override int GetDayOfYear(DateTime time) - { - CheckTicksRange(time.Ticks); - - int y = 0; int m = 0; int d = 0; - TimeToLunar(time, ref y, ref m, ref d); - - for (int i = 1; i < m; i++) - { - d = d + InternalGetDaysInMonth(y, i); - } - return d; - } - - // Returns the day-of-month part of the specified DateTime. The returned - // value is an integer between 1 and 29 or 30. - // - - public override int GetDayOfMonth(DateTime time) - { - CheckTicksRange(time.Ticks); - - int y = 0; int m = 0; int d = 0; - TimeToLunar(time, ref y, ref m, ref d); - - return d; - } - - // Returns the number of days in the year given by the year argument for the current era. - // - - public override int GetDaysInYear(int year, int era) - { - year = CheckYearRange(year, era); - - int Days = 0; - int monthsInYear = InternalIsLeapYear(year) ? 13 : 12; - - while (monthsInYear != 0) - Days += InternalGetDaysInMonth(year, monthsInYear--); - - return Days; - } - - // Returns the month part of the specified DateTime. The returned value is an - // integer between 1 and 13. - // - - public override int GetMonth(DateTime time) - { - CheckTicksRange(time.Ticks); - - int y = 0; int m = 0; int d = 0; - TimeToLunar(time, ref y, ref m, ref d); - - return m; - } - - // Returns the year part of the specified DateTime. The returned value is an - // integer between 1 and MaxCalendarYear. - // - - public override int GetYear(DateTime time) - { - CheckTicksRange(time.Ticks); - - int y = 0; int m = 0; int d = 0; - TimeToLunar(time, ref y, ref m, ref d); - - return GetYear(y, time); - } - - // Returns the day-of-week part of the specified DateTime. The returned value - // is an integer between 0 and 6, where 0 indicates Sunday, 1 indicates - // Monday, 2 indicates Tuesday, 3 indicates Wednesday, 4 indicates - // Thursday, 5 indicates Friday, and 6 indicates Saturday. - // - - public override DayOfWeek GetDayOfWeek(DateTime time) - { - CheckTicksRange(time.Ticks); - return ((DayOfWeek)((int)(time.Ticks / Calendar.TicksPerDay + 1) % 7)); - } - - // Returns the number of months in the specified year and era. - - public override int GetMonthsInYear(int year, int era) - { - year = CheckYearRange(year, era); - return (InternalIsLeapYear(year) ? 13 : 12); - } - - // Checks whether a given day in the specified era is a leap day. This method returns true if - // the date is a leap day, or false if not. - // - - public override bool IsLeapDay(int year, int month, int day, int era) - { - year = CheckYearMonthRange(year, month, era); - int daysInMonth = InternalGetDaysInMonth(year, month); - - if (day < 1 || day > daysInMonth) - { - throw new ArgumentOutOfRangeException( - nameof(day), - SR.Format(SR.ArgumentOutOfRange_Day, daysInMonth, month)); - } - int m = GetYearInfo(year, LeapMonth); - return ((m != 0) && (month == (m + 1))); - } - - // Checks whether a given month in the specified era is a leap month. This method returns true if - // month is a leap month, or false if not. - // - - public override bool IsLeapMonth(int year, int month, int era) - { - year = CheckYearMonthRange(year, month, era); - int m = GetYearInfo(year, LeapMonth); - return ((m != 0) && (month == (m + 1))); - } - - // Returns the leap month in a calendar year of the specified era. This method returns 0 - // if this this year is not a leap year. - // - - public override int GetLeapMonth(int year, int era) - { - year = CheckYearRange(year, era); - int month = GetYearInfo(year, LeapMonth); - if (month > 0) - { - return (month + 1); - } - return 0; - } - - internal bool InternalIsLeapYear(int year) - { - return (GetYearInfo(year, LeapMonth) != 0); - } - // Checks whether a given year in the specified era is a leap year. This method returns true if - // year is a leap year, or false if not. - // - - public override bool IsLeapYear(int year, int era) - { - year = CheckYearRange(year, era); - return InternalIsLeapYear(year); - } - - private const int DEFAULT_GREGORIAN_TWO_DIGIT_YEAR_MAX = 2029; - - - public override int TwoDigitYearMax - { - get - { - if (twoDigitYearMax == -1) - { - twoDigitYearMax = GetSystemTwoDigitYearSetting(BaseCalendarID, GetYear(new DateTime(DEFAULT_GREGORIAN_TWO_DIGIT_YEAR_MAX, 1, 1))); - } - return (twoDigitYearMax); - } - - set - { - VerifyWritable(); - if (value < 99 || value > MaxCalendarYear) - { - throw new ArgumentOutOfRangeException( - nameof(value), - SR.Format(SR.ArgumentOutOfRange_Range, 99, MaxCalendarYear)); - } - twoDigitYearMax = value; - } - } - - - public override int ToFourDigitYear(int year) - { - if (year < 0) - { - throw new ArgumentOutOfRangeException(nameof(year), - SR.ArgumentOutOfRange_NeedNonNegNum); - } - Contract.EndContractBlock(); - - year = base.ToFourDigitYear(year); - CheckYearRange(year, CurrentEra); - return (year); - } - } -} |