protected internal NodeViewModel([NotNull] GraphViewModel ownerViewModel, NodeViewModel parent, [NotNull] string baseName, Type nodeType, [NotNull] List <INodePresenter> nodePresenters)
: base(ownerViewModel.ServiceProvider)
{
owner = ownerViewModel;
Type = nodeType;
if (baseName == null)
{
throw new ArgumentException("baseName and index can't be both null.");
}
Name = EscapeName(baseName);
this.nodePresenters = nodePresenters;
foreach (var nodePresenter in nodePresenters)
{
nodePresenter.ValueChanging += ValueChanging;
nodePresenter.ValueChanged += ValueChanged;
nodePresenter.AttachedProperties.PropertyUpdated += AttachedPropertyUpdated;
}
UpdateViewModelProperties();
parent?.AddChild(this);
}
public void GenerateChildren(GraphViewModel owner, NodeViewModel parent, List <INodePresenter> nodePresenters)
{
foreach (var child in CombineChildren(nodePresenters))
{
if (ShouldConstructViewModel(child))
{
Type type = null;
var typeMatch = true;
foreach (var childPresenter in child)
{
if (type == null)
{
type = childPresenter.Type;
}
else if (type != childPresenter.Type && type.IsAssignableFrom(childPresenter.Type))
{
type = childPresenter.Type;
}
else if (type != childPresenter.Type)
{
typeMatch = false;
break;
}
}
if (typeMatch)
{
CreateNodeViewModel(owner, parent, child.First().Type, child);
}
}
}
}
protected virtual NodeViewModel CreateNodeViewModel([NotNull] GraphViewModel owner, NodeViewModel parent, Type nodeType, [NotNull] List <INodePresenter> nodePresenters, bool isRootNode = false)
{
// TODO: properly compute the name
var viewModel = new NodeViewModel(owner, parent, nodePresenters.First().Name, nodeType, nodePresenters);
if (isRootNode)
{
owner.RootNode = viewModel;
}
viewModel.Refresh();
return(viewModel);
}
public NodeViewModelValueChangedArgs(GraphViewModel viewModel, NodeViewModel node)
{
ViewModel = viewModel;
Node = node;
}
public NodeViewModel CreateGraph(GraphViewModel owner, Type rootType, IEnumerable <INodePresenter> rootNodes)
{
var rootViewModelNode = CreateNodeViewModel(owner, null, rootType, rootNodes.ToList(), true);
return(rootViewModelNode);
}