/usr/include/root/TLatex.h is in libroot-graf2d-graf-dev 5.34.19+dfsg-1.2.
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: Nicolas Brun 07/08/98
/*************************************************************************
* 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_TLatex
#define ROOT_TLatex
#ifndef ROOT_Riosfwd
#include "Riosfwd.h"
#endif
#ifndef ROOT_TText
#include "TText.h"
#endif
#ifndef ROOT_TAttLine
#include "TAttLine.h"
#endif
//////////////////////////////////////////////////////////////////////////
// //
// TLatex //
// //
// The Latex-style text processor class //
// //
//////////////////////////////////////////////////////////////////////////
struct FormSize_t {
Double_t fWidth, fOver, fUnder;
};
struct TextSpec_t {
Double_t fAngle,fSize;
Int_t fColor,fFont;
};
// compute size of a portion of a formula
class TLatexFormSize {
private:
Double_t fWidth, fOver, fUnder;
public:
TLatexFormSize() : fWidth(0), fOver(0),fUnder(0) { } // constructeur par defaut
TLatexFormSize(Double_t x, Double_t y1, Double_t y2) : fWidth(x), fOver(y1), fUnder(y2) { } // constructeur
virtual ~TLatexFormSize() {} //destructeur
TLatexFormSize(const TLatexFormSize& form)
: fWidth(form.fWidth), fOver(form.fOver), fUnder(form.fUnder) { }
// definition of operators + and +=
TLatexFormSize operator+(TLatexFormSize f)
{ return TLatexFormSize(f.Width()+fWidth,TMath::Max(f.Over(),fOver),TMath::Max(f.Under(),fUnder)); }
void operator+=(TLatexFormSize f)
{ fWidth += f.Width(); fOver = TMath::Max(fOver,f.Over()); fUnder = TMath::Max(fUnder,f.Under()); }
inline void Set(Double_t x, Double_t y1, Double_t y2) { fWidth=x; fOver=y1; fUnder=y2; }
TLatexFormSize AddOver(TLatexFormSize f)
{ return TLatexFormSize(f.Width()+fWidth,f.Height()+fOver,fUnder); }
TLatexFormSize AddUnder(TLatexFormSize f)
{ return TLatexFormSize(f.Width()+fWidth,fOver,f.Height()+fUnder); }
TLatexFormSize AddOver(TLatexFormSize f1, TLatexFormSize f2)
{ return TLatexFormSize(fWidth+TMath::Max(f1.Width(),f2.Width()),fOver+f1.Over(),fUnder+f2.Under()); }
// return members
inline Double_t Width() const { return fWidth; }
inline Double_t Over() const { return fOver; }
inline Double_t Under() const { return fUnder; }
inline Double_t Height() const { return fOver+fUnder; }
};
class TLatex : public TText, public TAttLine {
protected:
Double_t fFactorSize; //!Relative size of subscripts and superscripts
Double_t fFactorPos; //!Relative position of subscripts and superscripts
Int_t fLimitFactorSize; // lower bound for subscripts/superscripts size
const Char_t *fError; //!error code
Bool_t fShow; //!is true during the second pass (Painting)
FormSize_t *fTabSize; //!array of values for the different zones
Double_t fOriginSize; // Font size of the starting font
Int_t fTabMax; //!Maximum allocation for array fTabSize;
Int_t fPos; //!Current position in array fTabSize;
Bool_t fItalic; //!Currently inside #it operator
TLatex& operator=(const TLatex&);
//Text analysis and painting
TLatexFormSize Analyse(Double_t x, Double_t y, TextSpec_t spec, const Char_t* t,Int_t length);
TLatexFormSize Anal1(TextSpec_t spec, const Char_t* t,Int_t length);
void DrawLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2, TextSpec_t spec);
void DrawCircle(Double_t x1, Double_t y1, Double_t r, TextSpec_t spec);
void DrawParenthesis(Double_t x1, Double_t y1, Double_t r1, Double_t r2, Double_t phimin, Double_t phimax, TextSpec_t spec);
TLatexFormSize FirstParse(Double_t angle, Double_t size, const Char_t *text);
void Savefs(TLatexFormSize *fs);
TLatexFormSize Readfs();
Int_t CheckLatexSyntax(TString &text) ;
public:
// TLatex status bits
enum { kTextNDC = BIT(14) };
TLatex();
TLatex(Double_t x, Double_t y, const char *text);
TLatex(const TLatex &text);
virtual ~TLatex();
void Copy(TObject &text) const;
TLatex *DrawLatex(Double_t x, Double_t y, const char *text);
TLatex *DrawLatexNDC(Double_t x, Double_t y, const char *text);
Double_t GetHeight() const;
Double_t GetXsize();
Double_t GetYsize();
void GetBoundingBox(UInt_t &w, UInt_t &h, Bool_t angle = kFALSE);
virtual void Paint(Option_t *option="");
virtual void PaintLatex(Double_t x, Double_t y, Double_t angle, Double_t size, const char *text);
virtual void SavePrimitive(ostream &out, Option_t *option = "");
virtual void SetIndiceSize(Double_t factorSize);
virtual void SetLimitIndiceSize(Int_t limitFactorSize);
ClassDef(TLatex,2) //The Latex-style text processor class
};
#endif
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