private NodeSocket GetSocket(Type forType)
{
var socket = new NodeSocket();
SetValidType(socket, forType);
return(socket);
}
private Point SnapIfPossible(Point rootRelativePoint)
{
snappedSocket = null;
var nearestNode = root.GetNearestNode(rootRelativePoint);
if (null == nearestNode)
{
return(rootRelativePoint);
}
var nearestConnector = dragType == DragEndPoint.Input
? nearestNode.GetNearestFreeOutputSocket(rootRelativePoint, null == outputSocket ? null : Node.GetValidType(outputSocket))
: nearestNode.GetNearestFreeInputSocket(rootRelativePoint, null == inputSocket ? null : Node.GetValidType(inputSocket));
if (null == nearestConnector)
{
return(rootRelativePoint);
}
var distance = (rootRelativePoint - nearestConnector.Position).Length;
if (distance <= SnapDistance)
{
if (dragType == DragEndPoint.Input && !nearestNode.QueryCanConnectOutput(OutputNode) ||
dragType == DragEndPoint.Output && !nearestNode.QueryCanConnectInput(InputNode))
{
return(rootRelativePoint);
}
snappedSocket = nearestConnector;
return(nearestConnector.Position);
}
return(rootRelativePoint);
}
protected override void OnMouseUp(MouseButtonEventArgs e)
{
base.OnMouseUp(e);
var type = dragType;
dragType = DragEndPoint.Unknown;
ReleaseMouseCapture();
if (null != snappedSocket)
{
if (DragEndPoint.Input == type)
{
ConnectInputEndPoint(snappedSocket);
}
else
{
ConnectOutputEndPoint(snappedSocket);
}
}
if (null == inputSocket || null == outputSocket)
{
Delete();
}
snappedSocket = null;
e.Handled = true;
}
private void Connect(NodeSocket from, IConnectable to)
{
if (!InputSockets.Contains(from) && !OutputSockets.Contains(from))
{
return;
}
from.Connect(to);
}
public SocketType GetSocketType(NodeSocket socket)
{
if (InputSockets.Contains(socket))
{
return(SocketType.Input);
}
return(OutputSockets.Contains(socket) ? SocketType.Output : SocketType.Unknown);
}
public void ConnectOutputEndPoint(NodeSocket to)
{
outputSocket = to;
OutputNode = to.Node;
OnConnected(to);
UpdateStopPoint();
if (null == inputSocket)
{
StartPoint = StopPoint;
}
UpdateCentrePoints();
}
private void AddInputSocket()
{
if (!CanAutoAddInputs || GetFreeInputSocket() != null)
{
return;
}
var socket = new NodeSocket();
if (null != contentNode && contentNode.Inputs != null)
{
SetValidType(socket, contentNode.Inputs.LastOrDefault());
}
SubscribeInputSocket(socket);
InputSockets.Add(socket);
}
private Point SnapIfPossible(Point rootRelativePoint)
{
snappedSocket = null;
var nearestNode = root.GetNearestNode(rootRelativePoint);
if (null == nearestNode) return rootRelativePoint;
var nearestConnector = dragType == DragEndPoint.Input
? nearestNode.GetNearestFreeOutputSocket(rootRelativePoint, null == outputSocket ? null : Node.GetValidType(outputSocket))
: nearestNode.GetNearestFreeInputSocket(rootRelativePoint, null == inputSocket ? null : Node.GetValidType(inputSocket));
if (null == nearestConnector) return rootRelativePoint;
var distance = (rootRelativePoint - nearestConnector.Position).Length;
if (distance <= SnapDistance)
{
if (dragType == DragEndPoint.Input && !nearestNode.QueryCanConnectOutput(OutputNode) ||
dragType == DragEndPoint.Output && !nearestNode.QueryCanConnectInput(InputNode))
return rootRelativePoint;
snappedSocket = nearestConnector;
return nearestConnector.Position;
}
return rootRelativePoint;
}
protected override void OnMouseUp(MouseButtonEventArgs e)
{
base.OnMouseUp(e);
var type = dragType;
dragType = DragEndPoint.Unknown;
ReleaseMouseCapture();
if (null != snappedSocket)
{
if (DragEndPoint.Input == type)
ConnectInputEndPoint(snappedSocket);
else
ConnectOutputEndPoint(snappedSocket);
}
if (null == inputSocket || null == outputSocket)
Delete();
snappedSocket = null;
e.Handled = true;
}
public SocketType GetSocketType(NodeSocket socket)
{
if (InputSockets.Contains(socket))
return SocketType.Input;
return OutputSockets.Contains(socket) ? SocketType.Output : SocketType.Unknown;
}
private void AddInputSocket()
{
if (!CanAutoAddInputs || GetFreeInputSocket() != null) return;
var socket = new NodeSocket();
if (null != contentNode && contentNode.Inputs != null)
SetValidType(socket, contentNode.Inputs.LastOrDefault());
SubscribeInputSocket(socket);
InputSockets.Add(socket);
}
public static void SetValidType(NodeSocket element, Type value)
{
element.SetValue(ValidTypeProperty, value);
}
public static Type GetValidType(NodeSocket element)
{
return((Type)element.GetValue(ValidTypeProperty));
}
private static bool IsCompatible(NodeSocket socket, Type type)
{
return(null == type || GetValidType(socket) == type);
}
private static bool IsSocketFree(NodeSocket socket)
{
return !socket.IsConnected;
}
private static bool IsCompatible(NodeSocket socket, Type type)
{
return (null == type || GetValidType(socket) == type);
}
private static bool IsSocketFree(NodeSocket socket)
{
return(!socket.IsConnected);
}
private NodeSocket GetSocket(Type forType)
{
var socket = new NodeSocket();
SetValidType(socket, forType);
return socket;
}
public void ConnectOutputEndPoint(NodeSocket to)
{
outputSocket = to;
OutputNode = to.Node;
OnConnected(to);
UpdateStopPoint();
if (null == inputSocket)
StartPoint = StopPoint;
UpdateCentrePoints();
}
public static Type GetValidType(NodeSocket element)
{
return (Type)element.GetValue(ValidTypeProperty);
}
public static void SetValidType(NodeSocket element, Type value)
{
element.SetValue(ValidTypeProperty, value);
}
private void Connect(NodeSocket from, IConnectable to)
{
if (!InputSockets.Contains(from) && !OutputSockets.Contains(from)) return;
from.Connect(to);
}