internal EdgeLayout(GraphLayout graph, NodeLayout source, NodeLayout target, object edgeObject)
{
_graph = graph;
_edgeObject = edgeObject;
_source = source;
_target = target;
_graphVizEdge = CGraphLib.agedge(_graph.GraphVizGraph, source.GraphVizNode, target.GraphVizNode, null, true);
}
internal NodeLayout CreateSubGraph(NodeLayout parent, object nodeObject)
{
_dirty = true;
var n = new NodeLayout(parent, nodeObject, true);
_objectToNodeMap.Add(nodeObject, n);
return(n);
}
internal EdgeLayout CreateEdge(NodeLayout source, NodeLayout target, object edgeObject)
{
_dirty = true;
var e = new EdgeLayout(this, source, target, edgeObject);
CGraphLib.agxset(e.GraphVizEdge, _edgeDirAttribute, "none");
_objectToEdgeMap.Add(edgeObject, e);
return(e);
}
internal NodeLayout(NodeLayout parent, object nodeObject, bool isSubGraph = false)
{
_nodeObject = nodeObject;
_isSubGraph = isSubGraph;
_parentNode = parent;
if (parent != null)
{
Debug.Assert(parent.IsSubGraph);
_graph = parent.Graph;
if (_isSubGraph)
{
_graphVizSubGraph = CGraphLib.agsubg(parent.GraphVizSubGraph, "cluster" + (++SubGraphCounter), true);
}
else
{
_graphVizSubGraph = parent.GraphVizSubGraph;
}
if (!_isSubGraph)
{
_graphVizNode = CGraphLib.agnode(_graphVizSubGraph, null, true);
}
//else _graphVizNode = _graphVizSubGraph;
/*if (_isSubGraph)
* {
* CGraphLib.agxset(_graphVizNode, _graph._nodeWidthAttribute, "0");
* CGraphLib.agxset(_graphVizNode, _graph._nodeHeightAttribute, "0");
* CGraphLib.agxset(_graphVizNode, _graph._nodeStyleAttribute, "invis");
* }*/
}
else
{
_graph = (GraphLayout)this;
_graphVizSubGraph = CGraphLib.agopen(null, Agdesc_t.none, IntPtr.Zero);
_graphVizNode = CGraphLib.agnode(_graphVizSubGraph, null, true);
}
}