private void OnDiagramChanged(DiagramEventBase diagramEvent)
{
switch (diagramEvent)
{
case DiagramNodeAddedEvent diagramNodeAddedEvent:
var addedDiagramNode = diagramNodeAddedEvent.DiagramNode;
var addDiagramNodeAction = new AddDiagramNodeAction(addedDiagramNode);
if (addedDiagramNode is IContainerDiagramNode containerDiagramNode)
{
var incrementalLayoutEngine = CreateLayoutEngine(DiagramService);
_layoutEnginesPerNodes.Add(containerDiagramNode.Id, incrementalLayoutEngine);
}
var layoutEngineForAddedDiagramNode = GetLayoutEngine(addedDiagramNode);
layoutEngineForAddedDiagramNode.EnqueueDiagramAction(addDiagramNodeAction);
_modelNodeToContainingLayoutEngine.Add(addedDiagramNode.Id, layoutEngineForAddedDiagramNode);
break;
case DiagramConnectorAddedEvent diagramConnectorAddedEvent:
var addedDiagramConnector = diagramConnectorAddedEvent.DiagramConnector;
var addDiagramConnectorAction = new AddDiagramConnectorAction(addedDiagramConnector);
var layoutEngineForAddedDiagramConnector = GetLayoutEngine(addedDiagramConnector);
if (layoutEngineForAddedDiagramConnector != null)
{
layoutEngineForAddedDiagramConnector.EnqueueDiagramAction(addDiagramConnectorAction);
_modelRelationshipToContainingLayoutEngine.Add(addedDiagramConnector.Id, layoutEngineForAddedDiagramConnector);
}
break;
case DiagramNodeSizeChangedEvent diagramNodeSizeChangedEvent:
var resizedDiagramNode = diagramNodeSizeChangedEvent.DiagramNode;
var resizeDiagramNodeAction = new ResizeDiagramNodeAction(resizedDiagramNode, resizedDiagramNode.Size);
_modelNodeToContainingLayoutEngine[resizedDiagramNode.Id].EnqueueDiagramAction(resizeDiagramNodeAction);
break;
case DiagramNodeRemovedEvent diagramNodeRemovedEvent:
var removedDiagramNode = diagramNodeRemovedEvent.DiagramNode;
var removeDiagramNodeAction = new RemoveDiagramNodeAction(removedDiagramNode);
_modelNodeToContainingLayoutEngine[removedDiagramNode.Id].EnqueueDiagramAction(removeDiagramNodeAction);
break;
case DiagramConnectorRemovedEvent diagramConnectorRemovedEvent:
var removedDiagramConnector = diagramConnectorRemovedEvent.DiagramConnector;
var removeDiagramConnectorAction = new RemoveDiagramConnectorAction(removedDiagramConnector);
_modelRelationshipToContainingLayoutEngine[removedDiagramConnector.Id].EnqueueDiagramAction(removeDiagramConnectorAction);
break;
case DiagramClearedEvent _:
foreach (var incrementalLayoutEngine in _layoutEnginesPerNodes.Values)
{
incrementalLayoutEngine.Dispose();
}
_layoutEnginesPerNodes.Clear();
_rootLayoutEngine.EnqueueDiagramAction(new ClearDiagramAction());
break;
}
}
public void Visit(ResizeDiagramNodeAction action)
{
_consumer.ResizeDiagramNode(action.DiagramNode, action.NewSize);
}
