/// <summary>
/// Evaulates the RRule component, and adds each specified Period
/// to the <see cref="Periods"/> collection.
/// </summary>
/// <param name="periodStart">The beginning date of the range to evaluate.</param>
/// <param name="periodEnd">The end date of the range to evaluate.</param>
virtual protected void EvaluateRRule(IDateTime referenceDate, DateTime periodStart, DateTime periodEnd, bool includeReferenceDateInResults)
{
// Handle RRULEs
if (Recurrable.RecurrenceRules != null &&
Recurrable.RecurrenceRules.Count > 0)
{
foreach (IRecurrencePattern rrule in Recurrable.RecurrenceRules)
{
IEvaluator evaluator = rrule.GetService(typeof(IEvaluator)) as IEvaluator;
if (evaluator != null)
{
IList <IPeriod> periods = evaluator.Evaluate(referenceDate, periodStart, periodEnd, includeReferenceDateInResults);
foreach (IPeriod p in periods)
{
if (!Periods.Contains(p))
{
Periods.Add(p);
}
}
}
}
}
else if (includeReferenceDateInResults)
{
// If no RRULEs were found, then we still need to add
// the initial reference date to the results.
IPeriod p = new Period(referenceDate.Copy <IDateTime>());
if (!Periods.Contains(p))
{
Periods.Add(p);
}
}
}
public void EvaluateToPreviousOccurrence(IDateTime completedDate, IDateTime currDt)
{
IDateTime beginningDate = completedDate.Copy<IDateTime>();
if (Todo.RecurrenceRules != null)
{
foreach (IRecurrencePattern rrule in Todo.RecurrenceRules)
DetermineStartingRecurrence(rrule, ref beginningDate);
}
if (Todo.RecurrenceDates != null)
{
foreach (IPeriodList rdate in Todo.RecurrenceDates)
DetermineStartingRecurrence(rdate, ref beginningDate);
}
if (Todo.ExceptionRules != null)
{
foreach (IRecurrencePattern exrule in Todo.ExceptionRules)
DetermineStartingRecurrence(exrule, ref beginningDate);
}
if (Todo.ExceptionDates != null)
{
foreach (IPeriodList exdate in Todo.ExceptionDates)
DetermineStartingRecurrence(exdate, ref beginningDate);
}
Evaluate(Todo.Start, DateUtil.GetSimpleDateTimeData(beginningDate), DateUtil.GetSimpleDateTimeData(currDt).AddTicks(1), true);
}
/// <summary>
/// Evaulates the RRule component, and adds each specified Period
/// to the <see cref="Periods"/> collection.
/// </summary>
/// <param name="FromDate">The beginning date of the range to evaluate.</param>
/// <param name="ToDate">The end date of the range to evaluate.</param>
virtual protected void EvaluateRRule(IDateTime referenceDate, DateTime periodStart, DateTime periodEnd, bool includeReferenceDateInResults)
{
// Handle RRULEs
if (Recurrable.RecurrenceRules != null &&
Recurrable.RecurrenceRules.Count > 0)
{
foreach (IRecurrencePattern rrule in Recurrable.RecurrenceRules)
{
IEvaluator evaluator = rrule.GetService(typeof(IEvaluator)) as IEvaluator;
if (evaluator != null)
{
IList<IPeriod> periods = evaluator.Evaluate(referenceDate, periodStart, periodEnd, includeReferenceDateInResults);
foreach (IPeriod p in periods)
{
if (!Periods.Contains(p))
Periods.Add(p);
}
}
}
}
else if (includeReferenceDateInResults)
{
// If no RRULEs were found, then we still need to add
// the initial reference date to the results.
IPeriod p = new Period(referenceDate.Copy<IDateTime>());
if (!Periods.Contains(p))
Periods.Add(p);
}
}
public static IDateTime MatchTimeZone(IDateTime dt1, IDateTime dt2)
{
Debug.Assert(dt1 != null && dt2 != null);
// Associate the date/time with the first.
IDateTime copy = dt2.Copy <IDateTime>();
copy.AssociateWith(dt1);
// If the dt1 time does not occur in the same time zone as the
// dt2 time, then let's convert it so they can be used in the
// same context (i.e. evaluation).
if (dt1.TZID != null)
{
if (!string.Equals(dt1.TZID, copy.TZID))
{
return((dt1.TimeZoneObservance != null) ? copy.ToTimeZone(dt1.TimeZoneObservance.Value) : copy.ToTimeZone(dt1.TZID));
}
else
{
return(copy);
}
}
else if (dt1.IsUniversalTime)
{
// The first date/time is in UTC time, convert!
return(new iCalDateTime(copy.UTC));
}
else
{
// The first date/time is in local time, convert!
return(new iCalDateTime(copy.Local));
}
}
/// <summary>
/// Evaluates to previous occurrence.
/// </summary>
/// <param name="completedDate">The completed date.</param>
/// <param name="currentDateTime">The current date time.</param>
public void EvaluateToPreviousOccurrence(IDateTime completedDate, IDateTime currentDateTime)
{
var beginningDate = completedDate.Copy <IDateTime>( );
if (Todo.RecurrenceRules != null)
{
foreach (IRecurrencePattern rrule in Todo.RecurrenceRules)
{
DetermineStartingRecurrence(rrule, ref beginningDate);
}
}
if (Todo.RecurrenceDates != null)
{
foreach (IPeriodList rdate in Todo.RecurrenceDates)
{
DetermineStartingRecurrence(rdate, ref beginningDate);
}
}
if (Todo.ExceptionRules != null)
{
foreach (IRecurrencePattern exrule in Todo.ExceptionRules)
{
DetermineStartingRecurrence(exrule, ref beginningDate);
}
}
if (Todo.ExceptionDates != null)
{
foreach (IPeriodList exdate in Todo.ExceptionDates)
{
DetermineStartingRecurrence(exdate, ref beginningDate);
}
}
Evaluate(Todo.Start, DateUtil.GetSimpleDateTimeData(beginningDate), DateUtil.GetSimpleDateTimeData(currentDateTime).AddTicks(1), true);
}
public static IDateTime MatchTimeZone(IDateTime dt1, IDateTime dt2)
{
Debug.Assert(dt1 != null && dt2 != null);
// Associate the date/time with the first.
IDateTime copy = dt2.Copy<IDateTime>();
copy.AssociateWith(dt1);
// If the dt1 time does not occur in the same time zone as the
// dt2 time, then let's convert it so they can be used in the
// same context (i.e. evaluation).
if (dt1.TZID != null)
{
if (!string.Equals(dt1.TZID, copy.TZID))
return (dt1.TimeZoneObservance != null) ? copy.ToTimeZone(dt1.TimeZoneObservance.Value) : copy.ToTimeZone(dt1.TZID);
else return copy;
}
else if (dt1.IsUniversalTime)
{
// The first date/time is in UTC time, convert!
return new iCalDateTime(copy.UTC);
}
else
{
// The first date/time is in local time, convert!
return new iCalDateTime(copy.Local);
}
}
public static IDateTime MatchTimeZone(IDateTime dt1, IDateTime dt2)
{
// Associate the date/time with the first.
var copy = dt2.Copy <IDateTime>();
copy.AssociateWith(dt1);
// If the dt1 time does not occur in the same time zone as the
// dt2 time, then let's convert it so they can be used in the
// same context (i.e. evaluation).
if (dt1.TzId != null)
{
if (!string.Equals(dt1.TzId, copy.TzId))
{
return(copy.ToTimeZone(dt1.TzId));
}
return(copy);
}
if (dt1.IsUniversalTime)
{
// The first date/time is in UTC time, convert!
return(new CalDateTime(copy.AsUtc));
}
// The first date/time is in local time, convert!
return(new CalDateTime(copy.AsSystemLocal));
}
/// <summary>
/// Handles the repetitions that occur from the <c>REPEAT</c> and
/// <c>DURATION</c> properties. Each recurrence of the alarm will
/// have its own set of generated repetitions.
/// </summary>
virtual protected void AddRepeatedItems()
{
if (Repeat != null)
{
int len = Occurrences.Count;
for (int i = 0; i < len; i++)
{
AlarmOccurrence ao = Occurrences[i];
IDateTime alarmTime = ao.DateTime.Copy <IDateTime>();
for (int j = 0; j < Repeat; j++)
{
alarmTime = alarmTime.Add(Duration);
Occurrences.Add(new AlarmOccurrence(this, alarmTime.Copy <IDateTime>(), ao.Component));
}
}
}
}
/// <summary>
/// Evaulates the RRule component, and adds each specified Period to the Periods collection.
/// </summary>
/// <param name="referenceDate"></param>
/// <param name="periodStart">The beginning date of the range to evaluate.</param>
/// <param name="periodEnd">The end date of the range to evaluate.</param>
/// <param name="includeReferenceDateInResults"></param>
virtual protected void EvaluateRRule(IDateTime referenceDate, DateTime periodStart, DateTime periodEnd, bool includeReferenceDateInResults)
{
// Handle RRULEs
if (Recurrable.RecurrenceRules != null &&
Recurrable.RecurrenceRules.Count > 0)
{
foreach (var rrule in Recurrable.RecurrenceRules)
{
var evaluator = rrule.GetService(typeof(IEvaluator)) as IEvaluator;
if (evaluator != null)
{
var periods = evaluator.Evaluate(referenceDate, periodStart, periodEnd, includeReferenceDateInResults);
Periods.UnionWith(periods);
}
}
}
else if (includeReferenceDateInResults)
{
// If no RRULEs were found, then we still need to add
// the initial reference date to the results.
IPeriod p = new Period(referenceDate.Copy <IDateTime>());
Periods.UnionWith(new [] { p });
}
}
