internal void DrawNode(Graphics g, DNode dnode)
{
DrawingNode node = dnode.DrawingNode;
if (node.IsVisible == false)
{
return;
}
if (node.DrawNodeDelegate != null)
{
if (node.DrawNodeDelegate(node, g))
{
return; //the client draws instead
}
}
if (node.GeometryNode == null || node.GeometryNode.BoundaryCurve == null) //node comes with non-initilalized attribute - should not be drawn
{
return;
}
NodeAttr attr = node.Attr;
using (var pen = new Pen(dnode.Color, (float)attr.LineWidth))
{
foreach (Style style in attr.Styles)
{
Draw.AddStyleForPen(dnode, pen, style);
}
switch (attr.Shape)
{
case Shape.DoubleCircle:
Draw.DrawDoubleCircle(g, pen, dnode);
break;
case Shape.Box:
Draw.DrawBox(g, pen, dnode);
break;
case Shape.Diamond:
Draw.DrawDiamond(g, pen, dnode);
break;
case Shape.Point:
Draw.DrawEllipse(g, pen, dnode);
break;
case Shape.Plaintext:
{
break;
//do nothing
}
case Shape.Octagon:
case Shape.House:
case Shape.InvHouse:
case Shape.Ellipse:
case Shape.DrawFromGeometry:
#if DEBUG
case Shape.TestShape:
#endif
pen.EndCap = LineCap.Square;
Draw.DrawFromMsaglCurve(g, pen, dnode);
break;
default:
Draw.DrawEllipse(g, pen, dnode);
break;
}
}
Draw.DrawLabel(g, dnode.Label);
node.PostDrawNodeDelegate?.Invoke(node, g);
}