/// <summary>
/// Iterate through all DLLs in same location as the editor and load all non-abstract classes derived from NodeViewModel.
/// </summary>
public static void LoadNodeViewModels()
{
NodeViewModelsImpl.Clear();
NodeViewModelLookup.Clear();
// Go through each custom loaded type
foreach (Type type in ExtensibilityUtils.Types)
{
if (!type.IsAbstract && type.IsSubclassOf(typeof(NodeViewModel)))
{
NodeViewModelsImpl.Add(type);
}
}
foreach (Type viewModel in NodeViewModelsImpl)
{
NodeViewModelAttribute viewModelAttribute = viewModel.GetCustomAttribute <NodeViewModelAttribute>();
if (!NodeViewModelLookup.ContainsKey(viewModelAttribute.NodeType))
{
NodeViewModelLookup.Add(viewModelAttribute.NodeType, (SpeechNode node) =>
{
return(Activator.CreateInstance(viewModel, node) as NodeViewModel);
});
}
else
{
CelDebug.Fail("Duplicate view model type for node type " + viewModelAttribute.NodeType.Name);
continue;
}
}
}
/// <summary>
/// Use the inputted node to create a view model from all the registered node view models.
/// Returns null if no view model exists for the inputted node type.
/// </summary>
/// <param name="node"></param>
/// <returns></returns>
public static NodeViewModel CreateViewModel(SpeechNode node)
{
if (NodeViewModelLookup.ContainsKey(node.GetType()))
{
return(NodeViewModelLookup[node.GetType()](node) as NodeViewModel);
}
CelDebug.Fail("No node view model for inputted node type " + node.Name);
return(null);
}
public SpeechNodeViewModel(SpeechNode speechNode)
{
CelDebug.AssertNotNull(speechNode);
Node = speechNode;
// Have to set the name on the base view model otherwise it will not get refreshed in the UI when we create this view model
base.Name = speechNode.Name;
// Have to set the position on the base view model otherwise it will not get refreshed in the UI when we create this view model
Position = new Point((int)speechNode.Position.X, (int)speechNode.Position.Y);
// The node view model's position can be changed in the network, so we add a callback here to update the node's position too when that happens
Changed.Subscribe(Observer.Create((IReactivePropertyChangedEventArgs <IReactiveObject> e) =>
{
if (e.PropertyName == nameof(Position))
{
Node.Position.X = (float)Position.X;
Node.Position.Y = (float)Position.Y;
}
}));
CreateInputPin <NodeInputViewModel>("Input");
CreateOutputPin <NodeOutputViewModel>("Output");
}
