virtual void GetNodeSize(long id, long *x, long *y, wxDC& dc);
virtual void Draw(wxDC& dc);
virtual void DrawNodes(wxDC& dc);
virtual void DrawBranches(wxDC& dc);
virtual void DrawNode(long id, wxDC& dc);
virtual void DrawBranch(long from, long to, wxDC& dc);
virtual void GetNodeSize(long id, long *x, long *y, wxDC& dc);
virtual void Draw(wxDC& dc);
virtual void DrawNodes(wxDC& dc);
virtual void DrawBranches(wxDC& dc);
virtual void DrawNode(long id, wxDC& dc);
virtual void DrawBranch(long from, long to, wxDC& dc);