DrawLabel.h

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/* emacs: this is -*- c++ -*- */
#ifndef  DRAWLABEL_H
#define  DRAWLABEL_H
 
#include <iostream>
#include <string>
 
#include "TLatex.h"
 
 
 
class DrawLabel {
 
public:
 
  DrawLabel(double x, double y, const std::string& s, int colour=kBlack, double size=0.033, double font=42 ) :
    m_text(s), m_colour(colour), m_font(font), m_x(x), m_y(y), m_size(size)
  {
    //    std::cout << "DrawLabel::DrawLabel() " << m_text << std::endl;
    Draw(); 
  }
  
  virtual ~DrawLabel() { } 
 
  void Draw() const { 
      TLatex* tt = new TLatex();
      tt->SetNDC();
      tt->SetTextColor(m_colour);
      tt->SetTextSize(m_size);
      tt->SetTextFont(m_font);
      tt->DrawLatex(m_x, m_y, m_text.c_str() );
  }
 
  std::string& text()       { return m_text; } 
  std::string  text() const { return m_text; } 
 
private:
 
  std::string m_text;
  int         m_colour;
  int         m_font;
 
  double      m_x;
  double      m_y;
 
  double      m_size;
 
};
 
inline std::ostream& operator<<( std::ostream& s, const DrawLabel& d ) {
  return s << d.text();
}
 
 
#endif  // DRAWLABEL_H