virtual public void UpdateEventTypesAndTimers()
{
IEnumerable <EventType> dashboardtypes = new List <EventType> ();
IEnumerable <EventType> timelinetypes;
if (Dashboard != null)
{
/* Timers */
IEnumerable <Timer> timers = Dashboard.List.OfType <TimerButton> ().Select(b => b.Timer).OfType <Timer> ();
Timers.AddRange(timers.Except(Timers));
/* Update event types list that changes when the user adds or remove a
* a new button to the dashboard or after importing a project with events
* tagged with a different dashboard */
dashboardtypes = Dashboard.List.OfType <EventButton> ().Select(b => b.EventType);
}
/* Remove event types that have no events and are not in the dashboard anymore */
foreach (EventType evt in EventTypes.Except(dashboardtypes).ToList())
{
if (Timeline.Count(e => e.EventType == evt) == 0)
{
EventTypes.Remove(evt);
}
}
EventTypes.AddRange(dashboardtypes.Except(EventTypes));
timelinetypes = Timeline.Select(t => t.EventType).Distinct().Except(EventTypes);
EventTypes.AddRange(timelinetypes.Except(EventTypes));
/* Remove null EventTypes just in case */
EventTypes = new RangeObservableCollection <EventType> (EventTypes.Where(e => e != null));
}