/// <summary>
/// Populates the cal time zone info.
/// </summary>
/// <param name="tzi">The time zone info.</param>
/// <param name="transition">The transition.</param>
private static void PopulateiCalTimeZoneInfo(ITimeZoneInfo tzi, TimeZoneInfo.TransitionTime transition)
{
var recurrence = new RecurrencePattern
{
Frequency = FrequencyType.Yearly
};
recurrence.ByMonth.Add(transition.Month);
recurrence.ByHour.Add(transition.TimeOfDay.Hour);
recurrence.ByMinute.Add(transition.TimeOfDay.Minute);
if (transition.IsFixedDateRule)
{
recurrence.ByMonthDay.Add(transition.Day);
}
else
{
recurrence.ByDay.Add(transition.Week != 5 ? new WeekDay(transition.DayOfWeek, transition.Week) : new WeekDay(transition.DayOfWeek, -1));
}
tzi.RecurrenceRules.Add(recurrence);
}
/// <summary>
/// Processes the recurrence pattern.
/// </summary>
/// <param name="referenceDate">The reference date.</param>
/// <returns></returns>
private IRecurrencePattern ProcessRecurrencePattern(IDateTime referenceDate)
{
var r = new RecurrencePattern( );
r.CopyFrom(Pattern);
// Convert the UNTIL value to a local date/time based on the time zone information that
// is in the reference date
if (r.Until != DateTime.MinValue)
{
// Build an iCalDateTime with the correct time zone & calendar
var until = new iCalDateTime(r.Until, referenceDate.TzId)
{
AssociatedObject = referenceDate.AssociatedObject
};
// Convert back to local time so time zone comparisons match
r.Until = until.Local;
}
if (r.Frequency > FrequencyType.Secondly &&
r.BySecond.Count == 0 &&
referenceDate.HasTime /* NOTE: Fixes a bug where all-day events have BySecond/ByMinute/ByHour added incorrectly */)
{
r.BySecond.Add(referenceDate.Second);
}
if (r.Frequency > FrequencyType.Minutely &&
r.ByMinute.Count == 0 &&
referenceDate.HasTime /* NOTE: Fixes a bug where all-day events have BySecond/ByMinute/ByHour added incorrectly */)
{
r.ByMinute.Add(referenceDate.Minute);
}
if (r.Frequency > FrequencyType.Hourly &&
r.ByHour.Count == 0 &&
referenceDate.HasTime /* NOTE: Fixes a bug where all-day events have BySecond/ByMinute/ByHour added incorrectly */)
{
r.ByHour.Add(referenceDate.Hour);
}
// If BYDAY, BYYEARDAY, or BYWEEKNO is specified, then
// we don't default BYDAY, BYMONTH or BYMONTHDAY
if (r.ByDay.Count == 0)
{
// If the frequency is weekly, use the original date's day of week.
// NOTE: fixes WeeklyCount1() and WeeklyUntil1() handling
// If BYWEEKNO is specified and BYMONTHDAY/BYYEARDAY is not specified,
// then let's add BYDAY to BYWEEKNO.
// NOTE: fixes YearlyByWeekNoX() handling
if (r.Frequency == FrequencyType.Weekly ||
(
r.ByWeekNo.Count > 0 &&
r.ByMonthDay.Count == 0 &&
r.ByYearDay.Count == 0
))
{
r.ByDay.Add(new WeekDay(referenceDate.DayOfWeek));
}
// If BYMONTHDAY is not specified,
// default to the current day of month.
// NOTE: fixes YearlyByMonth1() handling, added BYYEARDAY exclusion
// to fix YearlyCountByYearDay1() handling
if (r.Frequency > FrequencyType.Weekly &&
r.ByWeekNo.Count == 0 &&
r.ByYearDay.Count == 0 &&
r.ByMonthDay.Count == 0)
{
r.ByMonthDay.Add(referenceDate.Day);
}
// If BYMONTH is not specified, default to
// the current month.
// NOTE: fixes YearlyCountByYearDay1() handling
if (r.Frequency > FrequencyType.Monthly &&
r.ByWeekNo.Count == 0 &&
r.ByYearDay.Count == 0 &&
r.ByMonth.Count == 0)
{
r.ByMonth.Add(referenceDate.Month);
}
}
return(r);
}