/// <summary>
/// Returns a sequence of major values.
/// </summary>
/// <param name="availableSize">The available size.</param>
/// <returns>A sequence of major values.</returns>
protected virtual IEnumerable <DateTime> GetMajorAxisValues(Size availableSize)
{
if (!ActualRange.HasData || ValueHelper.Compare(ActualRange.Minimum, ActualRange.Maximum) == 0 || GetLength(availableSize) == 0.0)
{
yield break;
}
this.ActualInterval = CalculateActualInterval(availableSize);
Range <DateTime> dateTimeRange = ToDateTimeRange(ActualRange);
DateTime date = dateTimeRange.Minimum;
DateTime start = AlignIntervalStart(dateTimeRange.Minimum, this.ActualInterval, ActualIntervalType);
while (start < dateTimeRange.Minimum)
{
start = IncrementDateTime(start, this.ActualInterval);
}
IEnumerable <DateTime> intermediateDates =
EnumerableFunctions
.Iterate(start, next => IncrementDateTime(next, this.ActualInterval))
.TakeWhile(current => dateTimeRange.Contains(current));
foreach (DateTime current in intermediateDates)
{
yield return(current);
}
}