internal NoteViewModel(ActorViewModel[] actors, SequenceNotePlacement placement, string message)
: base(message)
{
Actors = actors;
Placement = placement;
if (actors.Length > 1 && actors[0] == actors[1])
{
throw new ArgumentException(nameof(actors), "Note should overlap two different actors");
}
}
/// <summary>
/// Adds a note.
/// </summary>
/// <param name="actors"></param>
/// <param name="placement"></param>
/// <param name="message"></param>
public void AddNote(ActorViewModel[] actors, SequenceNotePlacement placement, string message)
{
if (actors == null)
{
throw new ArgumentNullException(nameof(actors));
}
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
Annotations.Add(new NoteViewModel(actors, placement, message));
}
public override SequenceDiagramViewModel VisitNote([NotNull] NoteContext context)
{
// Extract actors
ActorViewModel[] actors = GetActors(context.actor(), context.actorPair());
if (actors == null || actors.Any(a => a == null))
{
m_errorListener.GrammarError("Notes must be declared relative to an actor. e.g. Note left of A: Message");
return(null);
}
// Extract placement of note
SequenceNotePlacement placement = GetPlacement(context.placement());
// Extract the note's message
string message = GetMessage(context.message());
// Combine into a note
SequenceDiagram.AddNote(actors, placement, message);
return(SequenceDiagram);
}
