ThaiBuddhistCalendar.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Globalization / ThaiBuddhistCalendar.cs / 1305376 / ThaiBuddhistCalendar.cs
                        
                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
namespace System.Globalization {
 
    using System; 
    using System.Diagnostics.Contracts;
 
    /*=================================ThaiBuddhistCalendar==========================
    **
    ** ThaiBuddhistCalendar is based on Gregorian calendar.  Its year value has
    ** an offset to the Gregorain calendar. 
    **
    **  Calendar support range: 
    **      Calendar    Minimum     Maximum 
    **      ==========  ==========  ==========
    **      Gregorian   0001/01/01   9999/12/31 
    **      Thai        0544/01/01  10542/12/31
    ============================================================================*/

 
[System.Runtime.InteropServices.ComVisible(true)]
    [Serializable] public class ThaiBuddhistCalendar: Calendar { 
 
        // Initialize our era info.
        static internal EraInfo[] thaiBuddhistEraInfo = InitEraInfo(); 

        static EraInfo[] InitEraInfo()
        {
            EraInfo[] eraRanges = new EraInfo[1]; 
            eraRanges[0] = new EraInfo( 1, 1, 1, 1, -543, 544, GregorianCalendar.MaxYear + 543);     // era #, start year/month/day, yearOffset, minEraYear
            return eraRanges; 
        } 

        // 
        // The era value for the current era.
        //

        public const int ThaiBuddhistEra = 1; 

        //internal static Calendar m_defaultInstance; 
 
        internal GregorianCalendarHelper helper;
 

        [System.Runtime.InteropServices.ComVisible(false)]
        public override DateTime MinSupportedDateTime
        { 
            get
            { 
                return (DateTime.MinValue); 
            }
        } 

        [System.Runtime.InteropServices.ComVisible(false)]
        public override DateTime MaxSupportedDateTime
        { 
            get
            { 
                return (DateTime.MaxValue); 
            }
        } 

        // Return the type of the Thai Buddhist calendar.
        //
 
        [System.Runtime.InteropServices.ComVisible(false)]
        public override CalendarAlgorithmType AlgorithmType 
        { 
            get
            { 
                return CalendarAlgorithmType.SolarCalendar;
            }
        }
 
        public ThaiBuddhistCalendar() {
            helper = new GregorianCalendarHelper(this, thaiBuddhistEraInfo); 
        } 

        internal override int ID { 
            get {
                return (CAL_THAI);
            }
        } 

 
        public override DateTime AddMonths(DateTime time, int months) { 
            return (helper.AddMonths(time, months));
        } 


        public override DateTime AddYears(DateTime time, int years) {
            return (helper.AddYears(time, years)); 
        }
 
 
        public override int GetDaysInMonth(int year, int month, int era) {
            return (helper.GetDaysInMonth(year, month, era)); 
        }


        public override int GetDaysInYear(int year, int era) { 
            return (helper.GetDaysInYear(year, era));
        } 
 

        public override int GetDayOfMonth(DateTime time) { 
            return (helper.GetDayOfMonth(time));
        }

 
        public override DayOfWeek GetDayOfWeek(DateTime time)  {
            return (helper.GetDayOfWeek(time)); 
        } 

 
        public override int GetDayOfYear(DateTime time)
        {
            return (helper.GetDayOfYear(time));
        } 

 
        public override int GetMonthsInYear(int year, int era) { 
            return (helper.GetMonthsInYear(year, era));
        } 


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

 
        public override int GetEra(DateTime time) {
            return (helper.GetEra(time));
        }
 
        public override int GetMonth(DateTime time) {
            return (helper.GetMonth(time)); 
        } 

 
        public override int GetYear(DateTime time) {
            return (helper.GetYear(time));
        }
 

        public override bool IsLeapDay(int year, int month, int day, int era) 
        { 
            return (helper.IsLeapDay(year, month, day, era));
        } 


        public override bool IsLeapYear(int year, int era) {
            return (helper.IsLeapYear(year, era)); 
        }
 
        // Returns  the leap month in a calendar year of the specified era. This method returns 0 
        // if this calendar does not have leap month, or this year is not a leap year.
        // 

        [System.Runtime.InteropServices.ComVisible(false)]
        public override int GetLeapMonth(int year, int era)
        { 
            return (helper.GetLeapMonth(year, era));
        } 
 

        public override bool IsLeapMonth(int year, int month, int era) { 
            return (helper.IsLeapMonth(year, month, era));
        }

 
        public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era) {
            return (helper.ToDateTime(year, month, day, hour, minute, second, millisecond, era)); 
        } 

 
        public override int[] Eras {
            get {
                return (helper.Eras);
            } 
        }
 
        private const int DEFAULT_TWO_DIGIT_YEAR_MAX = 2572; 

 
        public override int TwoDigitYearMax
        {
            get
            { 
                if (twoDigitYearMax == -1)  {
                    twoDigitYearMax = GetSystemTwoDigitYearSetting(ID, DEFAULT_TWO_DIGIT_YEAR_MAX); 
                } 
                return (twoDigitYearMax);
            } 

            set {
                VerifyWritable();
                if (value < 99 || value > helper.MaxYear)  { 
                    throw new ArgumentOutOfRangeException(
                                "year", 
                                String.Format( 
                                    CultureInfo.CurrentCulture,
                                    Environment.GetResourceString("ArgumentOutOfRange_Range"), 
                                    99,
                                    helper.MaxYear));

                } 
                twoDigitYearMax = value;
            } 
        } 

 
        public override int ToFourDigitYear(int year) {
            return (helper.ToFourDigitYear(year, this.TwoDigitYearMax));
        }
    } 
}
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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ThaiBuddhistCalendar.cs source code in C# .NET

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