/// <inheritdoc/>
public override void ProcessInteraction(DiagramInteractionEventArguments interaction)
{
var selectedNodes = interaction.Diagram.Nodes.Where(n => n.IsSelected).ToList();
selectedNodes.ForEach(n => n.IsSelected = false);
if (interaction.Key == Key.C)
{
_copiedNodes = selectedNodes.Select(s => s.Model.Copy()).OfType <NodeModel>().ToList();
}
else
{
if (_copiedNodes == null)
{
return;
}
var firstCopiedNodeX = _copiedNodes.FirstOrDefault()?.X ?? 0;
var firstCopiedNodeY = _copiedNodes.FirstOrDefault()?.Y ?? 0;
var nodesToInsertToDiagram = new List <Node>();
foreach (var copiedNode in _copiedNodes)
{
var node = _nodeProvider.CreateNodeFromModel((NodeModel)copiedNode.Copy());
node.IsSelected = true;
var diagramMousePoint = interaction.Diagram.GetDiagramPointFromViewPoint(interaction.MousePosition);
node.X -= firstCopiedNodeX - diagramMousePoint.X;
node.Y -= firstCopiedNodeY - diagramMousePoint.Y;
node.IsSelected = true;
nodesToInsertToDiagram.Add(node);
interaction.Diagram.AddNode(node);
}
_transactor.Transact(new UndoCommand(new MapCommand(new UnwireAndDeleteNodeCommand(interaction.Diagram))), nodesToInsertToDiagram);
}
}
/// <summary>
/// Creates a new instance of <see cref="Diagram"/>.
/// </summary>
/// <param name="diagram">The model.</param>
/// <param name="nodeProvider">A node provider to create nodes.</param>
/// <param name="diagramInteractors">A list of interactors to enable on this diagram.</param>
public Diagram(
DiagramModel diagram,
INodeProvider nodeProvider,
IEnumerable <DiagramInteractor> diagramInteractors)
{
DiagramInteractionManager = new DiagramInteractionManager(() => diagramInteractors);
ExecuteWhenViewLoaded(() => Keyboard.Focus(View));
DiagramModel = diagram;
DiagramModel.PropertyChanged += DiagramOnPropertyChanged;
if (diagram.Nodes != null)
{
foreach (var nodeModel in diagram.Nodes)
{
var viewModel = nodeProvider.CreateNodeFromModel(nodeModel);
AddNodeViewModel(viewModel);
}
}
}
