private void OnModelChanged(ModelEventBase modelEvent)
{
var diagram = DiagramService.Diagram;
switch (modelEvent)
{
case ModelNodeUpdatedEvent modelNodeUpdatedEvent:
var newModelNode = modelNodeUpdatedEvent.NewNode;
if (diagram.TryGetNode(newModelNode.Id, out var diagramNodeToUpdate))
{
DiagramService.UpdateDiagramNodeModelNode(diagramNodeToUpdate, newModelNode);
}
break;
case ModelNodeRemovedEvent modelNodeRemovedEvent:
var removedModelNode = modelNodeRemovedEvent.RemovedNode;
if (diagram.TryGetNode(removedModelNode.Id, out var diagramNodeToRemove))
{
DiagramService.RemoveNode(diagramNodeToRemove.Id);
}
break;
case ModelRelationshipAddedEvent modelRelationshipAddedEvent:
var addedRelationship = modelRelationshipAddedEvent.AddedRelationship;
ShowModelRelationshipIfBothEndsAreVisible(addedRelationship, diagram);
break;
case ModelRelationshipRemovedEvent modelRelationshipRemovedEvent:
var modelRelationship = modelRelationshipRemovedEvent.RemovedRelationship;
if (diagram.TryGetConnector(modelRelationship.Id, out var diagramConnector))
{
DiagramService.RemoveConnector(diagramConnector.Id);
}
break;
case ModelClearedEvent _:
DiagramService.ClearDiagram();
break;
}
}