public static bool IsSameQuarter(YearMonth yearStartMonth, DateTime left, DateTime right)
{
int leftYear = TimeTool.GetYearOf(yearStartMonth, left);
int rightYear = TimeTool.GetYearOf(yearStartMonth, right);
if (leftYear != rightYear)
{
return(false);
}
return(TimeTool.GetQuarterOfMonth(yearStartMonth, (YearMonth)left.Month) == TimeTool.GetQuarterOfMonth(yearStartMonth, (YearMonth)right.Month));
}
public static DateTime Quarter(YearMonth yearStartMonth)
{
DateTime now = ClockProxy.Clock.Now;
int year = now.Year;
if (now.Month - (int)yearStartMonth < 0)
{
year--;
}
YearQuarter quarter = TimeTool.GetQuarterOfMonth(yearStartMonth, (YearMonth)now.Month);
int months = ((int)quarter - 1) * TimeSpec.MonthsPerQuarter;
return(new DateTime(year, (int)yearStartMonth, 1).AddMonths(months));
}
private int CalcQuarters()
{
if (TimeCompare.IsSameMonth(Date1, Date2))
{
return(0);
}
int year1 = TimeTool.GetYearOf(YearBaseMonth, Year1, Month1);
YearQuarter quarter1 = TimeTool.GetQuarterOfMonth(YearBaseMonth, (YearMonth)Month1);
int year2 = TimeTool.GetYearOf(YearBaseMonth, Year2, Month2);
YearQuarter quarter2 = TimeTool.GetQuarterOfMonth(YearBaseMonth, (YearMonth)Month2);
return
(((year2 * TimeSpec.QuartersPerYear) + quarter2) -
((year1 * TimeSpec.QuartersPerYear) + quarter1));
}
public Quarter(DateTime moment, ITimeCalendar calendar)
: this(TimeTool.GetYearOf(calendar.YearBaseMonth, calendar.GetYear(moment), calendar.GetMonth(moment)),
TimeTool.GetQuarterOfMonth(calendar.YearBaseMonth, (YearMonth)moment.Month), calendar)
{
}
