/usr/include/root/TLine.h is in libroot-graf2d-graf-dev 5.34.14-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Rene Brun 12/12/94
/*************************************************************************
* Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TLine
#define ROOT_TLine
//////////////////////////////////////////////////////////////////////////
// //
// TLine //
// //
// A line segment. //
// //
//////////////////////////////////////////////////////////////////////////
#ifndef ROOT_TObject
#include "TObject.h"
#endif
#ifndef ROOT_TAttLine
#include "TAttLine.h"
#endif
class TLine : public TObject, public TAttLine {
protected:
Double_t fX1; //X of 1st point
Double_t fY1; //Y of 1st point
Double_t fX2; //X of 2nd point
Double_t fY2; //Y of 2nd point
public:
// TLine status bits
enum {
kLineNDC = BIT(14), // Use NDC coordinates
kVertical = BIT(15), // Line is vertical
kHorizontal = BIT(16) // Line is horizontal
};
TLine();
TLine(Double_t x1, Double_t y1,Double_t x2, Double_t y2);
TLine(const TLine &line);
virtual ~TLine();
void Copy(TObject &line) const;
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py);
virtual TLine *DrawLine(Double_t x1, Double_t y1,Double_t x2, Double_t y2);
virtual TLine *DrawLineNDC(Double_t x1, Double_t y1,Double_t x2, Double_t y2);
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py);
Double_t GetX1() const {return fX1;}
Double_t GetX2() const {return fX2;}
Double_t GetY1() const {return fY1;}
Double_t GetY2() const {return fY2;}
Bool_t IsHorizontal();
Bool_t IsVertical();
virtual void ls(Option_t *option="") const;
virtual void Paint(Option_t *option="");
virtual void PaintLine(Double_t x1, Double_t y1,Double_t x2, Double_t y2);
virtual void PaintLineNDC(Double_t u1, Double_t v1,Double_t u2, Double_t v2);
virtual void Print(Option_t *option="") const;
virtual void SavePrimitive(ostream &out, Option_t *option = "");
virtual void SetNDC(Bool_t isNDC=kTRUE);
void SetHorizontal(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsHorizontal
void SetVertical(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsVertical
virtual void SetX1(Double_t x1) {fX1=x1;}
virtual void SetX2(Double_t x2) {fX2=x2;}
virtual void SetY1(Double_t y1) {fY1=y1;}
virtual void SetY2(Double_t y2) {fY2=y2;}
ClassDef(TLine,2) //A line segment
};
#endif
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