/// <summary>
/// Selects all childs ViewModels <see cref="TimelineEventVM"/> of a <see cref="EventTypeTimelineVM"/>
/// </summary>
/// <param name="vm">The EventTypeTimelineVM element in the collection</param>
public void SelectAllFrom(EventTypeTimelineVM vm)
{
EventTypesTimeline.Select(vm);
vm.Selection.Replace(vm.ViewModels);
foreach (var timelineEvent in vm.Selection)
{
timelineEvent.Selected = true;
}
}
void RemoveTimelineForEventType(EventType evtType)
{
EventTypeTimelineVM timeline = FindTimelineForEventType(evtType);
// If the timeline is empty and it does not have an associated dashboard
// button, get rid of it
if (!timeline.Any() && !eventTypes.Any(evt => evt.Model == evtType))
{
EventTypesTimeline.ViewModels.Remove(timeline);
timeline.Dispose();
eventTypeToTimeline.Remove(evtType);
}
}
void ReplaceToEventTypesTimeline(IEnumerable <TimelineEventVM> viewModels)
{
var groupVMs = viewModels.GroupBy(ev => ev.Model.EventType);
foreach (var grouping in groupVMs)
{
EventTypeTimelineVM timeline = FindTimelineForEventType(grouping.Key);
var timelineEvents = timeline.ViewModels;
timelineEvents.Replace(grouping);
}
//Clear the Rest of EventTypeTimelines if necessary
foreach (var eventType in eventTypeToTimeline.Keys.ToList().Except(groupVMs.Select(g => g.Key)))
{
if (eventTypeToTimeline [eventType].ViewModels.Any())
{
eventTypeToTimeline [eventType].ViewModels.Clear();
}
}
}
EventTypeTimelineVM FindTimelineForEventType(EventType evtType)
{
EventTypeTimelineVM timeline = null;
if (!eventTypeToTimeline.TryGetValue(evtType, out timeline))
{
var eventType = evtType;
if (GroupEventsByEventTypeName)
{
timeline = eventTypeToTimeline.FirstOrDefault(kv => kv.Key.Name == evtType.Name).Value;
}
if (timeline == null)
{
timeline = new EventTypeTimelineVM {
Model = evtType
};
EventTypesTimeline.ViewModels.Add(timeline);
}
eventTypeToTimeline [evtType] = timeline;
}
return(timeline);
}