bool Connect(GraphNodeEdge edge)
{
if (edge.input == null || edge.output == null)
{
return(false);
}
var inputPort = edge.input as GraphNodePort;
var outputPort = edge.output as GraphNodePort;
var inputNode = inputPort.node as GraphNode;
var outputNode = outputPort.node as GraphNode;
if (inputNode == null || outputNode == null)
{
return(false);
}
owner.AddElement(edge);
edge.input.Connect(edge);
edge.output.Connect(edge);
inputNode.RefreshPorts();
outputNode.RefreshPorts();
edge.isConnected = true;
return(true);
}
GraphNodeEdge GetFromCacheOrCreateEdge(GraphNodePort inputPort, GraphNodePort outputPort)
{
GraphNodeEdge cacheEdge = graphEdgesCache.FirstOrDefault(e => e.input == inputPort && e.output == outputPort);
if (cacheEdge != null)
{
graphEdgesCache.Remove(cacheEdge);
graphEdges.Add(cacheEdge);
return(cacheEdge);
}
else
{
var edge = new GraphNodeEdge()
{
input = inputPort,
output = outputPort
};
Connect(edge);
graphEdges.Add(edge);
return(edge);
}
}