// System.Globalization.HijriCalendar.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.IO;
using System.Runtime.InteropServices;
/// <summary>
/// This is the Hijri calendar which might be called Islamic calendar.
/// </summary>
/// <remarks>
/// <para>The calendar supports only dates in the HijriEra starting with the
/// epoch.
/// </para>
/// <para>
/// The epoch of the Hijri Calendar might be adjusted by the
/// <see cref="F:System.Globalization.HijriCalendar.AddHijriDate"/>
/// property. See the discussion of the
/// <see cref="F:CalendricalCalculations.HijriCalendar.epoch">
/// epoch
/// </see>
/// of the Hijri calendar.
/// </para>
/// <para>The implementation uses the
/// <see cref="N:CalendricalCalculations"/> namespace.
/// </para>
/// </remarks>
[Serializable]
[ComVisible (true)]
[MonoLimitation ("Serialization format not compatible with .NET")]
public class HijriCalendar : Calendar {
/// <summary>
/// Constructor.
/// </summary>
public HijriCalendar() {
M_AbbrEraNames = new string[] {"A.H."};
M_EraNames = new string[] {"Anno Hegirae"};
if (twoDigitYearMax == 99)
twoDigitYearMax = 1451;
}
/// <summary>
/// The era number for the Anno Hegirae (A.H.) era.
/// </summary>
public static readonly int HijriEra = 1;
/// <summary>
/// The minimum fixed day number supported by the Hijri calendar.
/// </summary>
internal static readonly int M_MinFixed =
CCHijriCalendar.fixed_from_dmy(1, 1, 1);
/// <summary>
/// The maximum fixed day number supported by the Hijri calendar.
/// </summary>
internal static readonly int M_MaxFixed =
CCGregorianCalendar.fixed_from_dmy(31, 12, 9999);
/// <value>Overridden. Gives the eras supported by the Gregorian
/// calendar as an array of integers.
/// </value>
public override int[] Eras {
get {
return new int[] { HijriEra };
}
}
// FIXME: [MonoTODO ("Add call into operating system")]
public override int TwoDigitYearMax
{
get {
return twoDigitYearMax;
}
set {
CheckReadOnly ();
M_ArgumentInRange ("value", value, 100, M_MaxYear);
twoDigitYearMax = value;
}
}
/// <summary>
/// Protected field storing the
/// <see cref="F:AddHijriDate"/>.
/// </summary>
internal int M_AddHijriDate = 0;
// TODO: I don't know currently, which sign to use with the parameter.
/// <value>An integer property representing the adjustment to the epoch
/// of the Hijri calendar. Not supported by .NET.
/// </value>
internal virtual int AddHijriDate {
get {
return M_AddHijriDate;
}
set {
CheckReadOnly ();
if (value < -3 && value > 3)
throw new ArgumentOutOfRangeException(
"AddHijriDate",
"Value should be between -3 and 3.");
M_AddHijriDate = value;
}
}
/// <summary>
/// A protected method checking an
/// <see cref="F:AddHijriDate"/> adjusted fixed day number.
/// </summary>
/// <param name="param">A string giving the name of the parameter
/// to check.</param>
/// <param name="rdHijri">An integer giving the AddHijriDate adjusted
/// fixed day number.
/// </param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// Exception is thrown, if the AddHijriDate adjusted fixed day
/// number is outside the supported range.
/// </exception>
internal void M_CheckFixedHijri(string param, int rdHijri) {
if (rdHijri < M_MinFixed || rdHijri > M_MaxFixed-AddHijriDate) {
StringWriter sw = new StringWriter();
int day, month, year;
CCHijriCalendar.dmy_from_fixed(out day, out month,
out year, M_MaxFixed-AddHijriDate);
if (AddHijriDate != 0) {
sw.Write("This HijriCalendar " +
"(AddHijriDate {0})" +
" allows dates from 1. 1. 1 to " +
"{1}. {2}. {3}.",
AddHijriDate,
day, month, year);
} else {
sw.Write("HijriCalendar allows dates from " +
"1.1.1 to {0}.{1}.{2}.",
day, month, year);
}
throw new ArgumentOutOfRangeException(param,
sw.ToString());
}
}
/// <summary>
/// A protected member checking a
/// <see cref="T:System.DateTime"/> value.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/>
/// to check.
/// </param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the supported
/// range of the Hijri calendar.
/// </exception>
internal void M_CheckDateTime(DateTime time) {
int rd = CCFixed.FromDateTime(time) - AddHijriDate;
M_CheckFixedHijri("time", rd);
}
/// <summary>
/// Protected member which computes the
/// <see cref="F:AddHijriDate"/>
/// adjusted fixed day number from a
/// <see cref="T:System.DateTime"/>.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/>
/// to convert.
/// </param>
/// <returns>The
/// <see cref="F:AddHijriDate"/> adjusted fixed day number.
/// </returns>
internal int M_FromDateTime(DateTime time) {
return CCFixed.FromDateTime(time) - AddHijriDate;
}
/// <summary>
/// Protected member which converts the
/// <see cref="F:AddHijriDate"/>
/// adjusted fixed day number the a
/// <see cref="T:System.DateTime"/> value.
/// </summary>
/// <param name="rd">The
/// <see cref="F:AddHijriDate"/> adjusted fixed day number.
/// </param>
/// <returns>The converted
/// <see cref="T:System.DateTime"/> value.
/// </returns>
internal DateTime M_ToDateTime(int rd) {
return CCFixed.ToDateTime(rd+AddHijriDate);
}
/// <summary>
/// Protected member which converts the
/// <see cref="F:AddHijriDate"/>
/// adjusted fixed day number the a
/// <see cref="T:System.DateTime"/> value using a number
/// of time parameters.
/// </summary>
/// <param name="date">The
/// <see cref="F:AddHijriDate"/> adjusted fixed day number.
/// </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>
/// <returns>The converted
/// <see cref="T:System.DateTime"/> value.
/// </returns>
internal DateTime M_ToDateTime(int date,
int hour, int minute, int second, int milliseconds)
{
return CCFixed.ToDateTime(date+AddHijriDate,
hour, minute, second, milliseconds);
}
/// <summary>
/// A protected method checking the era number.
/// </summary>
/// <param name="era">The era number.</param>
/// <exception name="T:System.ArgumentException">
/// The exception is thrown if the era is not equal
/// <see cref="F:HijriEra"/>.
/// </exception>
internal void M_CheckEra(ref int era) {
if (era == CurrentEra)
era = HijriEra;
if (era != HijriEra)
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.</param>
/// <exception cref="T:System.ArgumentException">
/// The exception is thrown if the era is not equal
/// <see cref="F:HijriEra"/>.
/// </exception>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the calendar year is outside of
/// the allowed range.
/// </exception>
internal override void M_CheckYE(int year, ref int era) {
M_CheckEra(ref era);
M_ArgumentInRange("year", year, 1, 9666);
}
/// <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.</param>
/// <exception cref="T:System.ArgumentException">
/// The exception is thrown if the era is not equal
/// <see cref="F:HijriEra"/>.
/// </exception>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the calendar year or month is
/// outside of the allowed range.
/// </exception>
internal void M_CheckYME(int year, int month, ref int era) {
M_CheckYE(year, ref era);
if (month < 1 || month > 12)
throw new ArgumentOutOfRangeException("month",
"Month must be between one and twelve.");
if (year == 9666) {
int rd = CCHijriCalendar.fixed_from_dmy(1, month, year);
M_CheckFixedHijri("month", rd);
}
}
/// <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.</param>
/// <exception cref="T:System.ArgumentException">
/// The exception is thrown if the era is not equal
/// <see cref="F:HijriEra"/>.
/// </exception>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the calendar year, month, or day is
/// outside of the allowed range.
/// </exception>
internal void M_CheckYMDE(int year, int month, int day, ref int era)
{
M_CheckYME(year, month, ref era);
M_ArgumentInRange("day", day, 1,
GetDaysInMonth(year, month, HijriEra));
if (year == 9666) {
int rd = CCHijriCalendar.fixed_from_dmy(day, month,
year);
M_CheckFixedHijri("day", rd);
}
}
#if false
//
// The following routines are commented out as they do not appear on the .NET Framework 1.1
//
/// <summary>
/// Overridden. Adds days to a given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> to which to add
/// days.
/// </param>
/// <param name="days">The number of days to add.</param>
/// <returns>A new <see cref="T:System.DateTime"/> value, that
/// results from adding <paramref name="days"/> to the specified
/// DateTime.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddDays(DateTime time, int days) {
DateTime t = base.AddDays(time, days);
M_CheckDateTime(t);
return t;
}
/// <summary>
/// Overridden. Adds hours to a given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> to which to add
/// hours.
/// </param>
/// <param name="hours">The number of hours to add.</param>
/// <returns>A new <see cref="T:System.DateTime"/> value, that
/// results from adding <paramref name="hours"/> to the specified
/// DateTime.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddHours(DateTime time, int hours) {
DateTime t = base.AddHours(time, hours);
M_CheckDateTime(t);
return t;
}
/// <summary>
/// Overridden. Adds milliseconds to a given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> to which to add
/// milliseconds.
/// </param>
/// <param name="milliseconds">The number of milliseconds given as
/// double to add. Keep in mind the 100 nanosecond resolution of
/// <see cref="T:System.DateTime"/>.
/// </param>
/// <returns>A new <see cref="T:System.DateTime"/> value, that
/// results from adding <paramref name="milliseconds"/> to the specified
/// DateTime.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddMilliseconds(DateTime time,
double milliseconds)
{
DateTime t = base.AddMilliseconds(time, milliseconds);
M_CheckDateTime(t);
return t;
}
/// <summary>
/// Overridden. Adds minutes to a given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> to which to add
/// minutes.
/// </param>
/// <param name="minutes">The number of minutes to add.</param>
/// <returns>A new <see cref="T:System.DateTime"/> value, that
/// results from adding <paramref name="minutes"/> to the specified
/// DateTime.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddMinutes(DateTime time, int minutes) {
DateTime t = base.AddMinutes(time, minutes);
M_CheckDateTime(t);
return t;
}
/// <summary>
/// Overridden. Adds seconds to a given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> to which to add
/// seconds.
/// </param>
/// <param name="seconds">The number of seconds to add.</param>
/// <returns>A new <see cref="T:System.DateTime"/> value, that
/// results from adding <paramref name="seconds"/> to the specified
/// DateTime.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddSeconds(DateTime time, int seconds) {
DateTime t = base.AddSeconds(time, seconds);
M_CheckDateTime(t);
return t;
}
/// <summary>
/// Overridden. Adds weeks to a given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> to which to add
/// weeks.
/// </param>
/// <param name="weeks">The number of weeks to add.</param>
/// <returns>A new <see cref="T:System.DateTime"/> value, that
/// results from adding <paramref name="weeks"/> to the specified
/// DateTime.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddWeeks(DateTime time, int weeks) {
DateTime t = base.AddWeeks(time, weeks);
M_CheckDateTime(t);
return t;
}
/// <summary>
/// Overridden. Gives the hour of the specified time.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> that specifies the
/// time.
/// </param>
/// <returns>An integer that gives the hour of the specified time,
/// starting with 0.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetHour(DateTime time) {
M_CheckDateTime(time);
return base.GetHour(time);
}
/// <summary>
/// Overridden. Gives the milliseconds in the current second
/// of the specified time.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> that specifies the
/// time.
/// </param>
/// <returns>An integer that gives the milliseconds in the seconds
/// of the specified time, starting with 0.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override double GetMilliseconds(DateTime time) {
M_CheckDateTime(time);
return base.GetMilliseconds(time);
}
/// <summary>
/// Overridden. Gives the minute of the specified time.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> that specifies the
/// time.
/// </param>
/// <returns>An integer that gives the minute of the specified time,
/// starting with 0.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetMinute(DateTime time) {
M_CheckDateTime(time);
return base.GetMinute(time);
}
/// <summary>
/// Overridden. Gives the second of the specified time.
/// </summary>
/// <param name="time">The
/// <see cref="T:System.DateTime"/> that specifies the
/// time.
/// </param>
/// <returns>An integer that gives the second of the specified time,
/// starting with 0.</returns>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetSecond(DateTime time) {
M_CheckDateTime(time);
return base.GetMinute(time);
}
#endif
/// <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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddMonths(DateTime time, int months) {
int rd = M_FromDateTime(time);
int day, month, year;
CCHijriCalendar.dmy_from_fixed(
out day, out month, out year, rd);
month += months;
year += CCMath.div_mod(out month, month, 12);
rd = CCHijriCalendar.fixed_from_dmy(day, month, year);
M_CheckFixedHijri("time", rd);
DateTime t = M_ToDateTime(rd);
return t.Add(time.TimeOfDay);
}
/// <summary>
/// Overrideden. 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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> return value is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DateTime AddYears(DateTime time, int years) {
int rd = M_FromDateTime(time);
int day, month, year;
CCHijriCalendar.dmy_from_fixed(
out day, out month, out year, rd);
year += years;
rd = CCHijriCalendar.fixed_from_dmy(day, month, year);
M_CheckFixedHijri("time", rd);
DateTime t = M_ToDateTime(rd);
return t.Add(time.TimeOfDay);
}
/// <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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetDayOfMonth(DateTime time) {
int rd = M_FromDateTime(time);
M_CheckFixedHijri("time", rd);
return CCHijriCalendar.day_from_fixed(rd);
}
/// <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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override DayOfWeek GetDayOfWeek(DateTime time) {
int rd = M_FromDateTime(time);
M_CheckFixedHijri("time", rd);
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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetDayOfYear(DateTime time) {
int rd = M_FromDateTime(time);
M_CheckFixedHijri("time", rd);
int year = CCHijriCalendar.year_from_fixed(rd);
int rd1_1 = CCHijriCalendar.fixed_from_dmy(1, 1, year);
return rd - rd1_1 + 1;
}
/// <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 intger 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) {
M_CheckYME(year, month, ref era);
int rd1 = CCHijriCalendar.fixed_from_dmy(1, month, year);
int rd2 = CCHijriCalendar.fixed_from_dmy(1, month+1, year);
return rd2 - rd1;
}
/// <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"/> is outside the allowed range.
/// </exception>
public override int GetDaysInYear(int year, int era) {
M_CheckYE(year, ref era);
int rd1 = CCHijriCalendar.fixed_from_dmy(1, 1, year);
int rd2 = CCHijriCalendar.fixed_from_dmy(1, 1, year+1);
return rd2 - rd1;
}
/// <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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetEra(DateTime time) {
M_CheckDateTime(time);
return HijriEra;
}
[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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetMonth(DateTime time) {
int rd = M_FromDateTime(time);
M_CheckFixedHijri("time", rd);
return CCHijriCalendar.month_from_fixed(rd);
}
/// <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_CheckYE(year, ref era);
return 12;
}
/// <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>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// The exception is thrown if the
/// <see cref="T:System.DateTime"/> parameter is not in the
/// supported range of the Hijri calendar.
/// </exception>
public override int GetYear(DateTime time) {
int rd = M_FromDateTime(time);
M_CheckFixedHijri("time", rd);
return CCHijriCalendar.year_from_fixed(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)
{
M_CheckYMDE(year, month, day, ref era);
return IsLeapYear(year) && month == 12 && day == 30;
}
/// <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_CheckYME(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) {
M_CheckYE(year, ref era);
return CCHijriCalendar.is_leap_year(year);
}
/// <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)
{
M_CheckYMDE(year, month, day, ref era);
M_CheckHMSM(hour, minute, second, millisecond);
int rd = CCHijriCalendar.fixed_from_dmy(day, month, year);
return M_ToDateTime(rd,
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.LunarCalendar;
}
}
#endif
static DateTime Min = new DateTime (622, 7, 18, 0, 0, 0);
static DateTime Max = new DateTime (9999, 12, 31, 11, 59, 59);
[ComVisible (false)]
public override DateTime MinSupportedDateTime {
get {
return Min;
}
}
[ComVisible (false)]
public override DateTime MaxSupportedDateTime {
get {
return Max;
}
}
} // class HijriCalendar
} // namespace System.Globalization
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