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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
namespace System.Globalization {
using System;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics.Contracts;
/*=================================KoreanCalendar==========================
**
** Korean calendar is based on the Gregorian calendar. And the year is an offset to Gregorian calendar.
** That is,
** Korean year = Gregorian year + 2333. So 2000/01/01 A.D. is Korean 4333/01/01
**
** 0001/1/1 A.D. is Korean year 2334.
**
** Calendar support range:
** Calendar Minimum Maximum
** ========== ========== ==========
** Gregorian 0001/01/01 9999/12/31
** Korean 2334/01/01 12332/12/31
============================================================================*/
[System.Runtime.InteropServices.ComVisible(true)]
[Serializable] public class KoreanCalendar: Calendar {
//
// The era value for the current era.
//
public const int KoreanEra = 1;
// Since
// Gregorian Year = Era Year + yearOffset
// Gregorian Year 1 is Korean year 2334, so that
// 1 = 2334 + yearOffset
// So yearOffset = -2333
// Gregorian year 2001 is Korean year 4334.
//m_EraInfo[0] = new EraInfo(1, new DateTime(1, 1, 1).Ticks, -2333, 2334, GregorianCalendar.MaxYear + 2333);
// Initialize our era info.
static internal EraInfo[] koreanEraInfo = new EraInfo[] {
new EraInfo( 1, 1, 1, 1, -2333, 2334, GregorianCalendar.MaxYear + 2333) // era #, start year/month/day, yearOffset, minEraYear
};
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 Korean calendar.
//
[System.Runtime.InteropServices.ComVisible(false)]
public override CalendarAlgorithmType AlgorithmType
{
get
{
return CalendarAlgorithmType.SolarCalendar;
}
}
/*=================================GetDefaultInstance==========================
**Action: Internal method to provide a default intance of KoreanCalendar. Used by NLS+ implementation
** and other calendars.
**Returns:
**Arguments:
**Exceptions:
============================================================================*/
/*
internal static Calendar GetDefaultInstance() {
if (m_defaultInstance == null) {
m_defaultInstance = new KoreanCalendar();
}
return (m_defaultInstance);
}
*/
public KoreanCalendar() {
try {
new CultureInfo("ko-KR");
} catch (ArgumentException e) {
throw new TypeInitializationException(this.GetType().FullName, e);
}
helper = new GregorianCalendarHelper(this, koreanEraInfo);
}
internal override int ID {
get {
return (CAL_KOREA);
}
}
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));
}
/*=================================GetDaysInMonth==========================
**Action: Returns the number of days in the month given by the year and month arguments.
**Returns: The number of days in the given month.
**Arguments:
** year The year in Korean calendar.
** month The month
** era The Japanese era value.
**Exceptions
** ArgumentException If month is less than 1 or greater * than 12.
============================================================================*/
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));
}
[SuppressMessage("Microsoft.Contracts", "CC1055")] // Skip extra error checking to avoid *potential* AppCompat problems.
[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 = 4362;
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) {
if (year < 0) {
throw new ArgumentOutOfRangeException("year",
Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
}
Contract.EndContractBlock();
return (helper.ToFourDigitYear(year, this.TwoDigitYearMax));
}
}
}
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