public static void DrawEdgeSelected(Graphics g, IEdge e, Font f, PointF pSource, PointF pTarget, int Radius = 5)
{
var ps = pSource;
var pt = pTarget;
String s = e.AttributesToString();
SizeF size = g.MeasureString(s, f);
PointF location = new PointF((pt.X * 2 + 3 * ps.X) / 5 - 4, (pt.Y * 2 + ps.Y * 3) / 5 - 4);
RectangleF rect = new RectangleF(location, size);
GraphicsPath roundedRect = GetRoundedRect(rect, Radius);
g.DrawLine(penHover, ps, pt);
g.FillEllipse(brushHover, (pt.X + ps.X) / 2 - 2, (pt.Y + ps.Y) / 2 - 2, 4, 4);
g.FillPath(brushAttrPanel, roundedRect);
g.DrawPath(penAttrBorder, roundedRect);
g.DrawString(s, f, brushText, rect);
}