private ConnectionLine TryPickingConnectionLineForSplitting()
{
var numConnectedInputs = Inputs.Count(input => input.Connections.Any());
ConnectionLine connectionToHighlight = null;
if (numConnectedInputs == 0)
{
var mousePos = Mouse.GetPosition(CV.XCompositionGraphView.XOperatorCanvas);
var hitResults = UIHelper.HitTestFor <Path>(CV.XCompositionGraphView.XOperatorCanvas, mousePos, 3.0);
foreach (var r in hitResults)
{
foreach (UIElement child in CV.XCompositionGraphView.XOperatorCanvas.Children)
{
var cl = child as ConnectionLine;
if (cl != null && cl.ConnectionPath == r.VisualHit as Path)
{
if (cl.Output.Parent != Operator)
{
connectionToHighlight = cl;
}
}
}
}
}
return(connectionToHighlight);
}
