private static IEnumerable <AppointmentSlot> CreateAppointmentSlots(
TimeSlotCollectionView timeSlots, IDateSpan intersection, Func <TimeSlot, AppointmentSlot> slotCreator)
{
return
(from g in timeSlots.Groups
let intersected =
from slot in g.TimeSlots
where intersection.IntersectsWith(slot)
select slot
where intersected.Count() > 0
select slotCreator(new TimeSlotGroup(intersected)));
}
internal static IList <AppointmentSlot> GetAppointmentSlots(
this IAppointment appointment, TimeSlotCollectionView timeSlots)
{
var slots = new List <AppointmentSlot>();
var effectiveRange = new TimeSlotGroup(timeSlots);
foreach (Occurrence occurrence in appointment.GetOccurrences(effectiveRange.Start, effectiveRange.End))
{
slots.AddRange(
CreateAppointmentSlots(
timeSlots, occurrence, timeSlot => new AppointmentSlot(occurrence, timeSlot)));
}
return(slots);
}
/// <summary>
/// Initializes a new instance of the <see cref="TimeSlotCollectionViewGroupRoot"/> class.
/// </summary>
/// <param name="collectionView">The collection view.</param>
/// <exception cref="ArgumentNullException"><c>collectionView</c> is null.</exception>
internal TimeSlotCollectionViewGroupRoot(TimeSlotCollectionView collectionView)
{
if (collectionView == null)
{
throw new ArgumentNullException("collectionView");
}
this.collectionView = collectionView;
this.collectionView.CollectionChanged += this.OnViewCollectionChanged;
this.GroupDescriptions = new ObservableCollection <GroupDescription>();
this.GroupDescriptions.CollectionChanged += this.OnGroupDescriptionsCollectionChanged;
this.groupsCollection = new ObservableCollection <TimeSlotGroup>();
this.Groups = new ReadOnlyObservableCollection <TimeSlotGroup>(this.groupsCollection);
}
