public void DrawEdges(Rect canvasAreaInWindow)
{
if (_draggingPathPointIndex == -1)
{
_hoveringEdge = null;
}
for (var i = 0; i < Graph.GetNodeCount(); i++)
{
Node node = Graph.GetNodeAt(i);
for (var iu = 0; iu < node.Sockets.Count; iu++)
{
AbstractSocket socket = node.Sockets[iu];
if (socket.IsInput() && socket.IsConnected()) // draw only input sockets to avoid double drawing of edges
{
InputSocket inputSocket = (InputSocket)socket;
if (CanvasOverlapsWindow(inputSocket.Edge.Bounds, canvasAreaInWindow))
{
bool highlight = _selectedNodes.Contains(node) ||
_selectedNodes.Contains(inputSocket.Edge.Output.Parent);
int segmentIndex = inputSocket.Edge.IntersectsPathSegment(Event.current.mousePosition);
bool hover = segmentIndex > -1;
node.GUIDrawEdge(inputSocket, highlight, hover);
if (hover && _draggingPathPointIndex == -1)
{
HandleEdgeHover(inputSocket.Edge, segmentIndex);
_hoveringEdge = inputSocket.Edge;
}
}
}
}
}
}
public void UnLink(AbstractSocket socket)
{
if (socket == null || !socket.IsConnected())
{
return;
}
if (socket.IsInput())
{
InputSocket inputSocket = (InputSocket)socket;
if (inputSocket.Edge != null)
{
UnLink(inputSocket, inputSocket.Edge.Output);
}
}
if (socket.IsOutput())
{
OutputSocket outputSocket = (OutputSocket)socket;
Edge[] edgeCopy = new Edge[outputSocket.Edges.Count];
outputSocket.Edges.CopyTo(edgeCopy);
for (int index = 0; index < edgeCopy.Length; index++)
{
var edge = edgeCopy[index];
UnLink(edge.Input, outputSocket);
}
}
}
private void HandleSocketDrag(AbstractSocket dragSource)
{
if (dragSource != null)
{
if (dragSource.IsInput() && dragSource.IsConnected())
{
_dragSourceSocket = ((InputSocket)dragSource).Edge.GetOtherSocket(dragSource);
_currentCanvas.Graph.UnLink((InputSocket)dragSource, (OutputSocket)_dragSourceSocket);
}
if (dragSource.IsOutput())
{
_dragSourceSocket = dragSource;
}
Event.current.Use();
}
Repaint();
}