KoreanCalendar.cs :  » 2.6.4-mono-.net-core » System.Globalization » System » Globalization » C# / CSharp Open Source

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C# / CSharp Open Source » 2.6.4 mono .net core » System.Globalization 
System.Globalization » System » Globalization » KoreanCalendar.cs
// System.Globalization.KoreanCalendar.cs
//
// (C) Ulrich Kunitz 2002
//

//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

namespace System.Globalization{

using System;
using System.Runtime.InteropServices;

/// <summary>
/// This is the Korean calendar. It differs from the Gegorian calendar only
/// in the year counting.
/// </summary>
/// <remarks>
/// <para>The implementation uses the
/// <see cref="N:CalendricalCalculations"/> namespace.
/// </para>
/// </remarks>
[Serializable]
[ComVisible (true)]
[MonoLimitation ("Serialization format not compatible with .NET")]
public class KoreanCalendar : Calendar {
  /// <summary>
  /// Static protected field storing the
  /// <see cref="T:CalendricalCalculations.GregorianEraHandler"/>.
  /// </summary>
  internal static readonly CCGregorianEraHandler M_EraHandler;

  /// <variable>
  /// The standard era for the <see cref="T:KoreanCalendar"/>.
  /// </variable>
  public const int KoreanEra = 1;

  /// <summary>
  /// Static constructor, who creates and initializes
  /// <see cref="F:M_EraHandler"/>.
  /// </summary>
  static KoreanCalendar() {
    M_EraHandler = new CCGregorianEraHandler();
    M_EraHandler.appendEra(KoreanEra,
      CCGregorianCalendar.fixed_from_dmy(1, 1, -2332));
  }

  /// <summary>
  /// Default constructor.
  /// </summary>
  public KoreanCalendar() {
    M_AbbrEraNames = new string[] {"K.C.E."};
    M_EraNames = new string[] {"Korean Current Era"};
    if (twoDigitYearMax == 99)
      twoDigitYearMax = 4362;
  }

  /// <value>Overridden. Gives the eras supported by the
  /// calendar as an array of integers.
  /// </value>
  public override int[] Eras {
    get {
      return (int[])M_EraHandler.Eras.Clone();
    }
  }

  public override int TwoDigitYearMax 
  {
    get {
      return twoDigitYearMax;
    }
    set {
      CheckReadOnly ();
      M_ArgumentInRange ("value", value, 100, M_MaxYear);

      twoDigitYearMax = value;
    }
  }
  
  /// <summary>
  /// A protected method checking the era number.
  /// </summary>
  /// <param name="era">The era number as reference. It is set
  /// to <see cref="F:CurrentEra"/>, if the input value is 0.</param>
  /// <exception name="T:System.ArgumentException">
  /// The exception is thrown if the era is not supported by the class.
  /// </exception>
  internal void M_CheckEra(ref int era) {
    if (era == CurrentEra)
      era = KoreanEra;
    if (!M_EraHandler.ValidEra(era))
      throw new ArgumentException("Era value was not valid.");
  }

  /// <summary>
  /// A protected method checking calendar year and the era number.
  /// </summary>
  /// <param name="year">An integer representing the calendar year.
  /// </param>
  /// <param name="era">The era number as reference.</param>
  /// <exception name="T:System.ArgumentException">
  /// The exception is thrown if the era is not supported by the class.
  /// </exception>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown if the calendar year is outside of
  /// the supported range.
  /// </exception>
  internal int M_CheckYEG(int year, ref int era) {
    M_CheckEra(ref era);
    return M_EraHandler.GregorianYear(year, era);
  }

  /// <summary>
  /// Checks whether the year is the era is valid, if era = CurrentEra
  /// the right value is set.
  /// </summary>
  /// <param name="year">The year to check.</param>
  /// <param name="era">The era to check.</Param>
  /// <exception cref="T:ArgumentOutOfRangeException">
  /// The exception will be thrown, if the year is not valid.
  /// </exception>
  internal override void M_CheckYE(int year, ref int era) {
    M_CheckYEG(year, ref era);
  }

  /// <summary>
  /// A protected method checking the calendar year, month, and
  /// era number.
  /// </summary>
  /// <param name="year">An integer representing the calendar year.
  /// </param>
  /// <param name="month">An integer giving the calendar month.
  /// </param>
  /// <param name="era">The era number as reference.</param>
  /// <exception name="T:System.ArgumentException">
  /// The exception is thrown if the era is not supported by the class.
  /// </exception>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown if the calendar year or month is
  /// outside of the supported range.
  /// </exception>
  internal int M_CheckYMEG(int year, int month, ref int era) {
    int gregorianYear = M_CheckYEG(year, ref era);
    if (month < 1 || month > 12)
      throw new ArgumentOutOfRangeException("month",
        "Month must be between one and twelve.");
    return gregorianYear;
  }

  /// <summary>
  /// A protected method checking the calendar day, month, and year
  /// and the era number.
  /// </summary>
  /// <param name="year">An integer representing the calendar year.
  /// </param>
  /// <param name="month">An integer giving the calendar month.
  /// </param>
  /// <param name="day">An integer giving the calendar day.
  /// </param>
  /// <param name="era">The era number as reference.</param>
  /// <exception name="T:System.ArgumentException">
  /// The exception is thrown if the era is not supported by the class.
  /// </exception>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown if the calendar year, month, or day is
  /// outside of the supported range.
  /// </exception>
  internal int M_CheckYMDEG(int year, int month, int day, ref int era)
  {
    int gregorianYear = M_CheckYMEG(year, month, ref era);
    M_ArgumentInRange("day", day, 1,
      GetDaysInMonth(year, month, era));
    return gregorianYear;
  }

  /// <summary>
  /// Overrideden. Adds months to a given date.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> to which to add
  /// months.
  /// </param>
  /// <param name="months">The number of months to add.</param>
  /// <returns>A new <see cref="T:System.DateTime"/> value, that
  /// results from adding <paramref name="months"/> to the specified
  /// DateTime.</returns>
  public override DateTime AddMonths(DateTime time, int months) {
    return CCGregorianCalendar.AddMonths(time, months);
  }

  /// <summary>
  /// Overridden. Adds years to a given date.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> to which to add
  /// years.
  /// </param>
  /// <param name="years">The number of years to add.</param>
  /// <returns>A new <see cref="T:System.DateTime"/> value, that
  /// results from adding <paramref name="years"/> to the specified
  /// DateTime.</returns>
  public override DateTime AddYears(DateTime time, int years) {
    return CCGregorianCalendar.AddYears(time, years);
  }
    
  /// <summary>
  /// Overriden. Gets the day of the month from
  /// <paramref name="time"/>.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> that specifies a
  /// date.
  /// </param>
  /// <returns>An integer giving the day of months, starting with 1.
  /// </returns>
  public override int GetDayOfMonth(DateTime time) {
    return CCGregorianCalendar.GetDayOfMonth(time);
  }

  /// <summary>
  /// Overriden. Gets the day of the week from the specified date.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> that specifies a
  /// date.
  /// </param>
  /// <returns>An integer giving the day of months, starting with 1.
  /// </returns>
  public override DayOfWeek GetDayOfWeek(DateTime time) {
    int rd = CCFixed.FromDateTime(time);
    return (DayOfWeek)CCFixed.day_of_week(rd);
  }

  /// <summary>
  /// Overridden. Gives the number of the day in the year.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> that specifies a
  /// date.
  /// </param>
  /// <returns>An integer representing the day of the year,
  /// starting with 1.</returns>
  public override int GetDayOfYear(DateTime time) {
    return CCGregorianCalendar.GetDayOfYear(time);
  }

  /// <summary>
  /// Overridden. Gives the number of days in the specified month
  /// of the given year and era.
  /// </summary>
  /// <param name="year">An integer that gives the year.
  /// </param>
  /// <param name="month">An integer that gives the month, starting
  /// with 1.</param>
  /// <param name="era">An integer that gives the era of the specified
  /// year.</param>
  /// <returns>An integer that gives the number of days of the
  /// specified month.</returns>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown, if <paramref name="month"/>,
  /// <paramref name="year"/> ,or <paramref name="era"/> is outside
  /// the allowed range.
  /// </exception>
  public override int GetDaysInMonth(int year, int month, int era) {
    int gregorianYear = M_CheckYMEG(year, month, ref era);
    return CCGregorianCalendar.GetDaysInMonth(gregorianYear, month);
  }

  /// <summary>
  /// Overridden. Gives the number of days of the specified
  /// year of the given era. 
  /// </summary>
  /// <param name="year">An integer that specifies the year. 
  /// </param>
  /// <param name="era">An ineger that specifies the era.
  /// </param>
  /// <returns>An integer that gives the number of days of the
  /// specified year.</returns>
  /// <exception cref="T:System.ArgumentOutOfRangeExceiption">
  /// The exception is thrown, if
  /// <paramref name="year"/> or <paramref name="era"/> are outside the
  /// allowed range.
  /// </exception>
  public override int GetDaysInYear(int year, int era) {
    int gregorianYear = M_CheckYEG(year, ref era);
    return CCGregorianCalendar.GetDaysInYear(gregorianYear);
  }

  /// <summary>
  /// Overridden. Gives the era of the specified date.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> that specifies a
  /// date.
  /// </param>
  /// <returns>An integer representing the era of the calendar.
  /// </returns>
  public override int GetEra(DateTime time) {
    int rd = CCFixed.FromDateTime(time);
    int era;
    M_EraHandler.EraYear(out era, rd);
    return era;
  }

  [ComVisible (false)]
  public override int GetLeapMonth (int year, int era)
  {
    return 0;
  }

  /// <summary>
  /// Overridden. Gives the number of the month of the specified
  /// date.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> that specifies a
  /// date.
  /// </param>
  /// <returns>An integer representing the month, 
  /// starting with 1.</returns>
  public override int GetMonth(DateTime time) {
    return CCGregorianCalendar.GetMonth(time);
  }

  /// <summary>
  /// Overridden. Gives the number of months in the specified year 
  /// and era.
  /// </summary>
  /// <param name="year">An integer that specifies the year.
  /// </param>
  /// <param name="era">An integer that specifies the era.
  /// </param>
  /// <returns>An integer that gives the number of the months in the
  /// specified year.</returns>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown, if the year or the era are not valid.
  /// </exception>
  public override int GetMonthsInYear(int year, int era) {
    M_CheckYEG(year, ref era);
    return 12;
  }

  [ComVisible (false)]
  public override int GetWeekOfYear (DateTime time, CalendarWeekRule rule, DayOfWeek firstDayOfWeek)
  {
    return base.GetWeekOfYear (time, rule, firstDayOfWeek);
  }

  /// <summary>
  /// Overridden. Gives the number of the year of the specified
  /// date.
  /// </summary>
  /// <param name="time">The
  /// <see cref="T:System.DateTime"/> that specifies a
  /// date.
  /// </param>
  /// <returns>An integer representing the year, 
  /// starting with 1.</returns>
  public override int GetYear(DateTime time) {
    int rd = CCFixed.FromDateTime(time);
    int era;
    return M_EraHandler.EraYear(out era, rd);
  }

  /// <summary>
  /// Overridden. Tells whether the given day 
  /// is a leap day.
  /// </summary>
  /// <param name="year">An integer that specifies the year in the
  /// given era.
  /// </param>
  /// <param name="month">An integer that specifies the month.
  /// </param>
  /// <param name="day">An integer that specifies the day.
  /// </param>
  /// <param name="era">An integer that specifies the era.
  /// </param>
  /// <returns>A boolean that tells whether the given day is a leap
  /// day.
  /// </returns>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown, if the year, month, day, or era is not
  /// valid.
  /// </exception>
  public override bool IsLeapDay(int year, int month, int day, int era)
  {
    int gregorianYear = M_CheckYMDEG(year, month, day, ref era);
    return CCGregorianCalendar.IsLeapDay(gregorianYear, month, day);
  }

  /// <summary>
  /// Overridden. Tells whether the given month 
  /// is a leap month.
  /// </summary>
  /// <param name="year">An integer that specifies the year in the
  /// given era.
  /// </param>
  /// <param name="month">An integer that specifies the month.
  /// </param>
  /// <param name="era">An integer that specifies the era.
  /// </param>
  /// <returns>A boolean that tells whether the given month is a leap
  /// month.
  /// </returns>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown, if the year, month, or era is not
  /// valid.
  /// </exception>
  public override bool IsLeapMonth(int year, int month, int era) {
    M_CheckYMEG(year, month, ref era);
    return false;
  }

  /// <summary>
  /// Overridden. Tells whether the given year
  /// is a leap year.
  /// </summary>
  /// <param name="year">An integer that specifies the year in the
  /// given era.
  /// </param>
  /// <param name="era">An integer that specifies the era.
  /// </param>
  /// <returns>A boolean that tells whether the given year is a leap
  /// year.
  /// </returns>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown, if the year or era is not
  /// valid.
  /// </exception>
  public override bool IsLeapYear(int year, int era) {
    int gregorianYear = M_CheckYEG(year, ref era);
    return CCGregorianCalendar.is_leap_year(gregorianYear);
  }

  /// <summary>
  /// Overridden. Creates the
  /// <see cref="T:System.DateTime"/> from the parameters.
  /// </summary>
  /// <param name="year">An integer that gives the year in the
  /// <paramref name="era"/>.
  /// </param>
  /// <param name="month">An integer that specifies the month.
  /// </param>
  /// <param name="day">An integer that specifies the day.
  /// </param>
  /// <param name="hour">An integer that specifies the hour.
  /// </param>
  /// <param name="minute">An integer that specifies the minute.
  /// </param>
  /// <param name="second">An integer that gives the second.
  /// </param>
  /// <param name="milliseconds">An integer that gives the
  /// milliseconds.
  /// </param>
  /// <param name="era">An integer that specifies the era.
  /// </param>
  /// <returns>A
  /// <see cref="T:system.DateTime"/> representig the date and time.
  /// </returns>
  /// <exception cref="T:System.ArgumentOutOfRangeException">
  /// The exception is thrown, if at least one of the parameters
  /// is out of range.
  /// </exception>
  public override DateTime ToDateTime(int year, int month, int day,
    int hour, int minute, int second, int millisecond,
    int era)
  {
    int gregorianYear = M_CheckYMDEG(year, month, day, ref era);
    M_CheckHMSM(hour, minute, second, millisecond);
    return CCGregorianCalendar.ToDateTime(gregorianYear,
      month, day, hour, minute, second, millisecond);
  }

  public override int ToFourDigitYear(int year)
  {
    return base.ToFourDigitYear (year);
  }
  
#if !NET_2_1
  [ComVisible (false)]
  public override CalendarAlgorithmType AlgorithmType {
    get {
      return CalendarAlgorithmType.SolarCalendar;
    }
  }
#endif

  static DateTime KoreanMin = new DateTime (1, 1, 1, 0, 0, 0);
  static DateTime KoreanMax = new DateTime (9999, 12, 31, 11, 59, 59);
    
  [ComVisible (false)]
  public override DateTime MinSupportedDateTime {
    get {
      return KoreanMin;
    }
  }

  [ComVisible (false)]
  public override DateTime MaxSupportedDateTime {
    get {
      return KoreanMax;
    }
  }
  
} // class KoreanCalendar
  
} // namespace System.Globalization
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