public ClientAnnotationViewModel(ISharedDataService sharedDataService, MeetingViewModel meeting) : base(sharedDataService, meeting)
{
// create the client annotations property, a mapped version of the agent's properties based on the screen sizes.
_annotationsChangedSub = _clientAnnotations = AnnotationsModel
.WhenAnyValue(v => v.Annotations, v => v.Select(p => CreateAnnotationViewModel(p)))
.ToProperty(this, v => v.Annotations);
}
/// <summary>
/// Undoes the last annotation by the Agent
/// </summary>
public void UndoAnnotation()
{
if (AnnotationsModel.Annotations.Count == 0)
{
return;
}
// find the last annotation for this page/tool
var last = _annotations.LastOrDefault(IsInCurrentPage);
if (last == null)
{
return;
}
_annotations.Remove(last);
AnnotationsModel.Annotations.Remove(last.Annotation);
this.RaisePropertyChanged("Annotations"); // rebinds to UI
AnnotationsModel.RaisePropertyChanged("Annotations"); // do this to ensure annotations are sent
}
public SharedDataService()
{
Person = new PersonModel();
MeetingState = new MeetingStateModel();
AnnotationsModel = new AnnotationsModel();
}
