/// <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 = CCJulianCalendar.fixed_from_dmy(1, month, year);
int rd2 = CCJulianCalendar.fixed_from_dmy(1, month + 1, year);
return(rd2 - rd1);
}
public static int month_from_fixed(int date)
{
int result;
int num;
CCJulianCalendar.my_from_fixed(out result, out num, date);
return(result);
}
/// <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)
{
int rd = CCFixed.FromDateTime(time);
int year = CCJulianCalendar.year_from_fixed(rd);
int rd1_1 = CCJulianCalendar.fixed_from_dmy(1, 1, year);
return(rd - rd1_1 + 1);
}
/// <summary>Returns the number of days in the specified year in the specified era.</summary>
/// <returns>The number of days in the specified year in the specified era.</returns>
/// <param name="year">An integer that represents the year. </param>
/// <param name="era">An integer that represents the era. </param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="era" /> is outside the range supported by the calendar. -or- <paramref name="year" /> is outside the range supported by the calendar. </exception>
public override int GetDaysInYear(int year, int era)
{
this.M_CheckYE(year, ref era);
int num = CCJulianCalendar.fixed_from_dmy(1, 1, year);
int num2 = CCJulianCalendar.fixed_from_dmy(1, 1, year + 1);
return(num2 - num);
}
/// <summary>Returns a <see cref="T:System.DateTime" /> that is set to the specified date and time in the specified era.</summary>
/// <returns>The <see cref="T:System.DateTime" /> that is set to the specified date and time in the current era.</returns>
/// <param name="year">An integer that represents the year. </param>
/// <param name="month">An integer from 1 to 12 that represents the month. </param>
/// <param name="day">An integer from 1 to 31 that represents the day. </param>
/// <param name="hour">An integer from 0 to 23 that represents the hour. </param>
/// <param name="minute">An integer from 0 to 59 that represents the minute. </param>
/// <param name="second">An integer from 0 to 59 that represents the second. </param>
/// <param name="millisecond">An integer from 0 to 999 that represents the millisecond. </param>
/// <param name="era">An integer that represents the era. </param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="year" /> is outside the range supported by the calendar.-or- <paramref name="month" /> is outside the range supported by the calendar.-or- <paramref name="day" /> is outside the range supported by the calendar.-or- <paramref name="hour" /> is less than zero or greater than 23.-or- <paramref name="minute" /> is less than zero or greater than 59.-or- <paramref name="second" /> is less than zero or greater than 59.-or- <paramref name="millisecond" /> is less than zero or greater than 999. -or- <paramref name="era" /> is outside the range supported by the calendar. </exception>
public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era)
{
this.M_CheckYMDE(year, month, day, ref era);
base.M_CheckHMSM(hour, minute, second, millisecond);
int date = CCJulianCalendar.fixed_from_dmy(day, month, year);
return(CCFixed.ToDateTime(date, hour, minute, second, (double)millisecond));
}
/// <summary>Returns the number of days in the specified month in the specified year in the specified era.</summary>
/// <returns>The number of days in the specified month in the specified year in the specified era.</returns>
/// <param name="year">An integer that represents the year. </param>
/// <param name="month">An integer from 1 to 12 that represents the month. </param>
/// <param name="era">An integer that represents the era. </param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="era" /> is outside the range supported by the calendar. -or- <paramref name="year" /> is outside the range supported by the calendar.-or- <paramref name="month" /> is outside the range supported by the calendar. </exception>
public override int GetDaysInMonth(int year, int month, int era)
{
this.M_CheckYME(year, month, ref era);
int num = CCJulianCalendar.fixed_from_dmy(1, month, year);
int num2 = CCJulianCalendar.fixed_from_dmy(1, month + 1, year);
return(num2 - num);
}
/// <summary>Returns the day of the year in the specified <see cref="T:System.DateTime" />.</summary>
/// <returns>An integer from 1 to 366 that represents the day of the year in <paramref name="time" />.</returns>
/// <param name="time">The <see cref="T:System.DateTime" /> to read. </param>
public override int GetDayOfYear(DateTime time)
{
int num = CCFixed.FromDateTime(time);
int year = CCJulianCalendar.year_from_fixed(num);
int num2 = CCJulianCalendar.fixed_from_dmy(1, 1, year);
return(num - num2 + 1);
}
/// <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 = CCJulianCalendar.fixed_from_dmy(1, 1, year);
int rd2 = CCJulianCalendar.fixed_from_dmy(1, 1, year + 1);
return(rd2 - rd1);
}
public static int day_from_fixed(int date)
{
int result;
int num;
int num2;
CCJulianCalendar.dmy_from_fixed(out result, out num, out num2, date);
return(result);
}
/// <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>
/// <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 milliseconds,
int era)
{
M_CheckYMDE(year, month, day, ref era);
M_CheckHMSM(hour, minute, second, milliseconds);
int rd = CCJulianCalendar.fixed_from_dmy(day, month, year);
return(CCFixed.ToDateTime(rd,
hour, minute, second, milliseconds));
}
/// <summary>Returns a <see cref="T:System.DateTime" /> that is the specified number of years away from the specified <see cref="T:System.DateTime" />.</summary>
/// <returns>The <see cref="T:System.DateTime" /> that results from adding the specified number of years to the specified <see cref="T:System.DateTime" />.</returns>
/// <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>
/// <exception cref="T:System.ArgumentException">The resulting <see cref="T:System.DateTime" /> is outside the supported range. </exception>
public override DateTime AddYears(DateTime time, int years)
{
int date = CCFixed.FromDateTime(time);
int day;
int month;
int num;
CCJulianCalendar.dmy_from_fixed(out day, out month, out num, date);
num += years;
date = CCJulianCalendar.fixed_from_dmy(day, month, num);
return(CCFixed.ToDateTime(date).Add(time.TimeOfDay));
}
/// <summary>Returns a <see cref="T:System.DateTime" /> that is the specified number of months away from the specified <see cref="T:System.DateTime" />.</summary>
/// <returns>The <see cref="T:System.DateTime" /> that results from adding the specified number of months to the specified <see cref="T:System.DateTime" />.</returns>
/// <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>
/// <exception cref="T:System.ArgumentException">The resulting <see cref="T:System.DateTime" /> is outside the supported range. </exception>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="months" /> is less than -120000.-or- <paramref name="months" /> is greater than 120000. </exception>
public override DateTime AddMonths(DateTime time, int months)
{
int date = CCFixed.FromDateTime(time);
int day;
int num;
int num2;
CCJulianCalendar.dmy_from_fixed(out day, out num, out num2, date);
num += months;
num2 += CCMath.div_mod(out num, num, 12);
date = CCJulianCalendar.fixed_from_dmy(day, num, num2);
return(CCFixed.ToDateTime(date).Add(time.TimeOfDay));
}
/// <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)
{
int rd = CCFixed.FromDateTime(time);
int day, month, year;
CCJulianCalendar.dmy_from_fixed(
out day, out month, out year, rd);
year += years;
rd = CCJulianCalendar.fixed_from_dmy(day, month, year);
DateTime t = CCFixed.ToDateTime(rd);
return(t.Add(time.TimeOfDay));
}
public static int fixed_from_dmy(int day, int month, int year)
{
int num = (year >= 0) ? year : (year + 1);
int num2 = -2;
num2 += 365 * (num - 1);
num2 += CCMath.div(num - 1, 4);
num2 += CCMath.div(367 * month - 362, 12);
if (month > 2)
{
num2 += ((!CCJulianCalendar.is_leap_year(year)) ? -2 : -1);
}
return(num2 + day);
}
/// <summary>
/// Overridden. 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)
{
int rd = CCFixed.FromDateTime(time);
int day, month, year;
CCJulianCalendar.dmy_from_fixed(
out day, out month, out year, rd);
month += months;
year += CCMath.div_mod(out month, month, 12);
rd = CCJulianCalendar.fixed_from_dmy(day, month, year);
DateTime t = CCFixed.ToDateTime(rd);
return(t.Add(time.TimeOfDay));
}
public static void my_from_fixed(out int month, out int year, int date)
{
year = CCJulianCalendar.year_from_fixed(date);
int num = date - CCJulianCalendar.fixed_from_dmy(1, 1, year);
int num2;
if (date < CCJulianCalendar.fixed_from_dmy(1, 3, year))
{
num2 = 0;
}
else if (CCJulianCalendar.is_leap_year(year))
{
num2 = 1;
}
else
{
num2 = 2;
}
month = CCMath.div(12 * (num + num2) + 373, 367);
}
public static int date_difference(int dayA, int monthA, int yearA, int dayB, int monthB, int yearB)
{
return(CCJulianCalendar.fixed_from_dmy(dayB, monthB, yearB) - CCJulianCalendar.fixed_from_dmy(dayA, monthA, yearA));
}
/// <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(CCJulianCalendar.is_leap_year(year));
}
/// <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);
return(CCJulianCalendar.year_from_fixed(rd));
}
/// <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)
{
int rd = CCFixed.FromDateTime(time);
return(CCJulianCalendar.month_from_fixed(rd));
}
/// <summary>Returns the day of the month in the specified <see cref="T:System.DateTime" />.</summary>
/// <returns>An integer from 1 to 31 that represents the day of the month in <paramref name="time" />.</returns>
/// <param name="time">The <see cref="T:System.DateTime" /> to read. </param>
public override int GetDayOfMonth(DateTime time)
{
int date = CCFixed.FromDateTime(time);
return(CCJulianCalendar.day_from_fixed(date));
}
public static int days_remaining(int day, int month, int year)
{
return(CCJulianCalendar.date_difference(day, month, year, 31, 12, year));
}
public static int day_number(int day, int month, int year)
{
return(CCJulianCalendar.date_difference(31, 12, year - 1, day, month, year));
}
public static void dmy_from_fixed(out int day, out int month, out int year, int date)
{
CCJulianCalendar.my_from_fixed(out month, out year, date);
day = date - CCJulianCalendar.fixed_from_dmy(1, month, year) + 1;
}
