public virtual void AddConnection(CNodeConnectionViewModel newConnection, CPinViewModel otherPin)
{
int prevConnectionCount = Connections.Count;
Connections.Add(newConnection);
if (prevConnectionCount == 0)
{
RaisePropertyChanged("PinInnerColor");
RaisePropertyChanged("IsConnected");
}
}
public CNodeConnectionViewModel(CPinViewModel sourcePin, CPinViewModel targetPin, CNodeGraphViewModel nodeGraph)
{
MouseDownCommand = new CRelayCommand(OnMouseDown);
m_nodeGraph = nodeGraph;
m_sourceNode = sourcePin.NodeViewModel;
m_targetNode = targetPin.NodeViewModel;
m_sourcePin = sourcePin;
m_targetPin = targetPin;
m_sourceNode.OnNodeMoved += OnSourceMoved;
m_sourcePin.ConnectionPointChanged += OnSourcePinChanged;
m_targetNode.OnNodeMoved += OnTargetMoved;
m_targetPin.ConnectionPointChanged += OnTargetPinChanged;
StrokeColor = m_sourcePin.PinOuterColor;
}
private void ConnectPins(CPinViewModel source, CPinViewModel target)
{
CNodeConnectionViewModel newConnection = new CNodeConnectionViewModel(source, target, this);
void Redo()
{
newConnection.Connect();
}
void Undo()
{
newConnection.Disconnect();
}
Redo();
UndoRedoUtility.Record(new CRelayUndoItem(Undo, Redo));
}
public override bool CanConnect(CPinViewModel pinToCheck, out string failReason)
{
if (pinToCheck == null)
{
failReason = "Source not existing";
return(false);
}
if (pinToCheck.NodeViewModel == NodeViewModel)
{
failReason = "Cannot connect to a pin on the same node";
return(false);
}
if (pinToCheck is COutputPinViewModel)
{
failReason = "Output is not compatible with another output";
return(false);
}
if (pinToCheck is CExecutionPinViewModel)
{
failReason = "Output is not compatible with execution";
return(false);
}
if (pinToCheck is CInputPinViewModel inputPin)
{
if (inputPin.IsLiteralOnly)
{
failReason = $"Input pin {inputPin.Name} can only be assigned a value by changing its literal value";
return(false);
}
if (!inputPin.ValueType.IsAssignableFrom(ValueType))
{
failReason = "Output of type " + EditorKlaxScriptUtility.GetTypeName(ValueType) + " is not compatible with input of type " + EditorKlaxScriptUtility.GetTypeName(inputPin.ValueType);
return(false);
}
}
failReason = "";
return(true);
}
private void OnNodeAddNodePopupSelected(CNodeEntryViewModel addNodeEntry)
{
CNode scriptNode = addNodeEntry.NodeFactory.CreateNode();
scriptNode.NodePosX = m_addNodePoint.X;
scriptNode.NodePosY = m_addNodePoint.Y;
CScriptNodeViewmodel newNode = AddNode(scriptNode);
if (m_addNodeContextPin != null)
{
CPinViewModel possibleTarget = newNode.GetPossibleTargetPin(m_addNodeContextPin);
if (possibleTarget != null)
{
ConnectPins(m_addNodeContextPin, possibleTarget);
}
}
m_addNodeContextPin = null;
AddNodeViewModel.IsOpen = false;
}
public override bool CanConnect(CPinViewModel pinToCheck, out string failReason)
{
if (pinToCheck == null)
{
failReason = "Source not existing";
return(false);
}
if (pinToCheck.NodeViewModel == NodeViewModel)
{
failReason = "Cannot connect to a pin on the same node";
return(false);
}
if (pinToCheck is COutputPinViewModel)
{
failReason = "Execution is not compatible with output";
return(false);
}
if (pinToCheck is CInputPinViewModel)
{
failReason = "Execution is not compatible with input";
return(false);
}
if (pinToCheck is CExecutionPinViewModel otherExecution)
{
if (IsIn == otherExecution.IsIn)
{
failReason = "Cannot connect to an execution pin with the same direction";
return(false);
}
}
failReason = "";
return(true);
}
public override void AddConnection(CNodeConnectionViewModel newConnection, CPinViewModel otherPin)
{
if (!IsIn)
{
if (otherPin is CExecutionPinViewModel otherExecution && otherExecution.IsIn)
{
// Out Execution pins can only be connected to a single node
if (Connections.Count > 0)
{
if (Connections.Count > 1)
{
List <CNodeConnectionViewModel> oldConnections = new List <CNodeConnectionViewModel>();
foreach (CNodeConnectionViewModel connection in Connections)
{
oldConnections.Add(connection);
}
foreach (CNodeConnectionViewModel connection in oldConnections)
{
connection.Disconnect();
}
}
Connections[0].Disconnect();
}
m_pin.TargetNode = otherPin.NodeViewModel.ScriptNode;
m_pin.TargetPin = otherPin.NodeViewModel.ScriptNode.InExecutionPins[otherPin.PinIndex];
m_pin.TargetPinIndex = otherPin.PinIndex;
base.AddConnection(newConnection, otherPin);
}
}
else
{
base.AddConnection(newConnection, otherPin);
}
}
public override void AddConnection(CNodeConnectionViewModel newConnection, CPinViewModel otherPin)
{
if (otherPin is COutputPinViewModel outputPin)
{
// Input pin can only be connected to a single node
if (Connections.Count > 0)
{
if (Connections.Count > 1)
{
List <CNodeConnectionViewModel> oldConnections = new List <CNodeConnectionViewModel>();
foreach (CNodeConnectionViewModel connection in Connections)
{
oldConnections.Add(connection);
}
foreach (CNodeConnectionViewModel connection in oldConnections)
{
connection.Disconnect();
}
}
Connections[0].Disconnect();
}
m_pin.SourceNode = outputPin.NodeViewModel.ScriptNode;
m_pin.SourceParameterIndex = outputPin.PinIndex;
CNodeChangeContext context = new CNodeChangeContext();
m_nodeViewmodel.ScriptNode.OnInputConnectionChanged(context, m_pin, outputPin.Pin);
foreach (var action in context.Actions)
{
m_nodeViewmodel.ExecuteNodeAction(action);
}
base.AddConnection(newConnection, otherPin);
}
}
public CPinViewModel GetPossibleTargetPin(CPinViewModel source)
{
foreach (var executionPin in InExecutionPins)
{
if (executionPin.CanConnect(source, out string failReason))
{
return(executionPin);
}
}
foreach (var executionPin in OutExecutionPins)
{
if (executionPin.CanConnect(source, out string failReason))
{
return(executionPin);
}
}
foreach (var inputPin in InputPins)
{
if (inputPin.CanConnect(source, out string failReason))
{
return(inputPin);
}
}
foreach (var outputPin in OutputPins)
{
if (outputPin.CanConnect(source, out string failReason))
{
return(outputPin);
}
}
return(null);
}
public virtual void RemoveConnection(CNodeConnectionViewModel removedConnection, CPinViewModel otherPin)
{
Connections.Remove(removedConnection);
if (Connections.Count == 0)
{
RaisePropertyChanged("PinInnerColor");
RaisePropertyChanged("IsConnected");
}
}
public override void RemoveConnection(CNodeConnectionViewModel removedConnection, CPinViewModel otherPin)
{
m_pin.TargetNode = null;
base.RemoveConnection(removedConnection, otherPin);
}
public override void RemoveConnection(CNodeConnectionViewModel removedConnection, CPinViewModel otherPin)
{
m_pin.SourceNode = null;
m_pin.SourceParameterIndex = -1;
if (otherPin is COutputPinViewModel outputVm)
{
CNodeChangeContext context = new CNodeChangeContext();
m_nodeViewmodel.ScriptNode.OnInputConnectionChanged(context, m_pin, null);
foreach (var action in context.Actions)
{
m_nodeViewmodel.ExecuteNodeAction(action);
}
}
base.RemoveConnection(removedConnection, otherPin);
}
public abstract bool CanConnect(CPinViewModel pinToCheck, out string failReason);