IEdge FindInputEdgeAt(IVertex vertex, PointF location)
{
if (vertex.InDegree == 0)
return null;
PointF pointT = (PointF)vertex.GetAlgorithmObj(_KH_PANE_LOCATION);
foreach (var incomingEdges in vertex.IncomingEdges)
{
PointF pointS = (PointF)incomingEdges.Source.GetAlgorithmObj(_KH_PANE_LOCATION);
RectangleF bound = new RectangleF((pointS.X + pointT.X) / 2 - 3, (pointS.Y + pointT.Y) / 2 - 3, 6, 6);
if (bound.IsEmpty)
continue;
if (bound.Contains(location))
return incomingEdges;
}
return null;
}
protected void OnPaint_DrawVertexInfo(Graphics g,IVertex v)
{
PointF location = (PointF)v.GetAlgorithmObj(_KH_PANE_LOCATION);
RectangleF rect = (RectangleF)v.GetAlgorithmObj(_KH_PANE_BOUNDS);
Render.DrawVertexSelected(g, v, _Attrfont, location, rect);
}