private void RaiseEvents([NotNull][ItemNotNull] IEnumerable <DiagramEventBase> events)
{
foreach (var @event in events)
{
DiagramChanged?.Invoke(@event);
}
}
public void ClearDiagram()
{
lock (_diagramUpdateLockObject)
{
Diagram = Diagram.Clear();
DiagramChanged?.Invoke(new DiagramClearedEvent(Diagram));
}
}
public void AddNode(IDiagramNode node)
{
lock (_diagramUpdateLockObject)
{
if (Diagram.NodeExists(node.Id))
{
return;
}
Diagram = Diagram.AddNode(node);
DiagramChanged?.Invoke(new DiagramNodeAddedEvent(Diagram, node));
}
}
public void AddConnector([NotNull] IDiagramConnector connector)
{
lock (_diagramUpdateLockObject)
{
if (Diagram.ConnectorExists(connector.Id))
{
return;
}
Diagram = Diagram.AddConnector(connector);
DiagramChanged?.Invoke(new DiagramConnectorAddedEvent(Diagram, connector));
}
}
public void RemoveNode(ModelNodeId nodeId)
{
lock (_diagramUpdateLockObject)
{
if (!Diagram.NodeExists(nodeId))
{
return;
}
var oldNode = Diagram.GetNode(nodeId);
Diagram = Diagram.RemoveNode(nodeId);
DiagramChanged?.Invoke(new DiagramNodeRemovedEvent(Diagram, oldNode));
}
}
public void RemoveConnector(ModelRelationshipId connectorId)
{
lock (_diagramUpdateLockObject)
{
if (!Diagram.ConnectorExists(connectorId))
{
return;
}
var oldConnector = Diagram.GetConnector(connectorId);
Diagram = Diagram.RemoveConnector(connectorId);
DiagramChanged?.Invoke(new DiagramConnectorRemovedEvent(Diagram, oldConnector));
}
}
private void MutateWithLockThenRaiseEvents([NotNull] Func <DiagramEvent> diagramMutatorFunc)
{
DiagramEvent diagramEvent;
lock (_diagramUpdateLockObject)
{
diagramEvent = diagramMutatorFunc.Invoke();
LatestDiagram = diagramEvent.NewDiagram;
}
DiagramChanged?.Invoke(diagramEvent);
_diagramChangedEventStream.OnNext(diagramEvent);
AfterDiagramChanged?.Invoke(diagramEvent);
}
public void UpdateDiagramNodeCenter(IDiagramNode diagramNode, Point2D newCenter)
{
lock (_diagramUpdateLockObject)
{
if (!Diagram.TryGetNode(diagramNode.Id, out var oldNode))
{
return;
}
var newNode = oldNode.WithCenter(newCenter);
Diagram = Diagram.UpdateNode(newNode);
DiagramChanged?.Invoke(new DiagramNodePositionChangedEvent(Diagram, oldNode, newNode));
}
}
public void UpdateDiagramNodeSize(IDiagramNode diagramNode, Size2D newSize)
{
lock (_diagramUpdateLockObject)
{
if (!Diagram.TryGetNode(diagramNode.Id, out var oldNode))
{
return;
}
var newNode = oldNode.WithSize(newSize);
Diagram = Diagram.UpdateNode(newNode);
DiagramChanged?.Invoke(new DiagramNodeSizeChangedEvent(Diagram, oldNode, newNode));
}
}
public void UpdateDiagramConnectorRoute(IDiagramConnector diagramConnector, Route newRoute)
{
lock (_diagramUpdateLockObject)
{
if (!Diagram.TryGetConnector(diagramConnector.Id, out var oldConnector))
{
return;
}
var newConnector = oldConnector.WithRoute(newRoute);
Diagram = Diagram.UpdateConnector(newConnector);
DiagramChanged?.Invoke(new DiagramConnectorRouteChangedEvent(Diagram, oldConnector, newConnector));
}
}
public void UpdateDiagramNodeModelNode(IDiagramNode diagramNode, IModelNode newModelNode)
{
lock (_diagramUpdateLockObject)
{
if (!Diagram.TryGetNode(diagramNode.Id, out IDiagramNode oldNode))
{
return;
}
var newNode = oldNode.WithModelNode(newModelNode);
Diagram = Diagram.UpdateNode(newNode);
DiagramChanged?.Invoke(new DiagramNodeModelNodeChangedEvent(Diagram, oldNode, newNode));
}
}
public void UpdateDiagramNodeCenter(IDiagramNode diagramNode, Point2D newCenter)
{
lock (_diagramUpdateLockObject)
{
Diagram
.TryGetNode(diagramNode.Id)
.Match(
oldNode =>
{
var updatedNode = oldNode.WithCenter(newCenter);
Diagram = Diagram.UpdateNode(updatedNode);
DiagramChanged?.Invoke(new DiagramNodePositionChangedEvent(Diagram, oldNode, updatedNode));
},
() => Debug.WriteLine($"Trying to move node {diagramNode} but it does not exist."));
}
}
public void UpdateDiagramNodeSize(IDiagramNode diagramNode, Size2D newSize)
{
lock (_diagramUpdateLockObject)
{
Diagram
.TryGetNode(diagramNode.Id)
.Match(
oldNode =>
{
var updatedNode = oldNode.WithSize(newSize);
Diagram = Diagram.UpdateNode(updatedNode);
DiagramChanged?.Invoke(new DiagramNodeSizeChangedEvent(Diagram, oldNode, updatedNode));
},
() => throw new InvalidOperationException($"Node {diagramNode} does not exist."));
}
}
public void UpdateConnectorRoute(ModelRelationshipId connectorId, Route newRoute)
{
lock (_diagramUpdateLockObject)
{
Diagram
.TryGetConnector(connectorId)
.Match(
oldConnector =>
{
var newConnector = oldConnector.WithRoute(newRoute);
Diagram = Diagram.UpdateConnector(newConnector);
DiagramChanged?.Invoke(new DiagramConnectorRouteChangedEvent(Diagram, oldConnector, newConnector));
},
() => throw new InvalidOperationException($"Connector {connectorId} does not exist."));
}
}
private void MutateWithLockThenRaiseEvents([NotNull] Action <IDiagramMutator> diagramMutatorFunc)
{
DiagramEvent diagramEvent;
lock (_diagramUpdateLockObject)
{
var diagramMutator = CreateDiagramMutator();
diagramMutatorFunc.Invoke(diagramMutator);
diagramEvent = diagramMutator.GetDiagramEvent();
LatestDiagram = diagramEvent.NewDiagram;
}
if (diagramEvent.IsEmpty)
{
return;
}
DiagramChanged?.Invoke(diagramEvent);
_diagramChangedEventStream.OnNext(diagramEvent);
AfterDiagramChanged?.Invoke(diagramEvent);
}
