00001 // @(#)root/hist:$Id: TGraphEdge.h 30204 2009-09-16 14:55:06Z couet $ 00002 // Author: Olivier Couet 13/07/09 00003 00004 /************************************************************************* 00005 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * 00006 * All rights reserved. * 00007 * * 00008 * For the licensing terms see $ROOTSYS/LICENSE. * 00009 * For the list of contributors see $ROOTSYS/README/CREDITS. * 00010 *************************************************************************/ 00011 00012 #ifndef ROOT_TGraphEdge 00013 #define ROOT_TGraphEdge 00014 00015 #ifndef ROOT_TObject 00016 #include "TObject.h" 00017 #endif 00018 00019 #ifndef ROOT_TAttLine 00020 #include "TAttLine.h" 00021 #endif 00022 00023 struct Agraph_t; 00024 struct Agedge_t; 00025 class TGraphNode; 00026 00027 ////////////////////////////////////////////////////////////////////////// 00028 // // 00029 // TGraphEdge // 00030 // // 00031 // Interface to the graphviz package. // 00032 // // 00033 ////////////////////////////////////////////////////////////////////////// 00034 00035 00036 class TGraphEdge: public TObject, public TAttLine { 00037 00038 protected: 00039 00040 TGraphNode *fNode1; // First node 00041 TGraphNode *fNode2; // Second node 00042 Agedge_t *fGVEdge; // Graphviz edge 00043 Double_t *fX; // X edge points (GV) 00044 Double_t *fY; // X edge points (GV) 00045 Int_t *fN; // number of edge points (GV) 00046 // fN[0] = number of splines 00047 // fN[1...n] = number of points in each spline 00048 Double_t fArrX; // Arrow X position 00049 Double_t fArrY; // Arrow Y position 00050 00051 public: 00052 00053 TGraphEdge(); 00054 TGraphEdge(TGraphNode *n1, TGraphNode *n2); 00055 virtual ~TGraphEdge(); 00056 00057 void CreateGVEdge(Agraph_t *gv); 00058 virtual Int_t DistancetoPrimitive(Int_t px, Int_t py); 00059 virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py); 00060 void SetGVEdge(Agedge_t *gve) {fGVEdge = gve;} 00061 Agedge_t *GetGVEdge() {return fGVEdge;} 00062 TGraphNode *GetNode1() {return fNode1;} 00063 TGraphNode *GetNode2() {return fNode2;} 00064 void Layout(); 00065 virtual void Paint(Option_t *option=""); 00066 virtual void SavePrimitive(ostream &, Option_t *); 00067 void SaveAttributes(ostream &, const char*); 00068 00069 00070 ClassDef(TGraphEdge,1) //Graph edge class 00071 }; 00072 00073 #endif
1.5.1