HistoDef.h

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#pragma once
 
#include <GaudiKernel/Kernel.h>
#include <iosfwd>
#include <string>
 
class IHistogramSvc;
namespace AIDA {
  class IHistogram1D;
} // namespace AIDA
 
namespace Gaudi {
  class GAUDI_API Histo1DDef final {
  public:
    Histo1DDef( double low, double high, int bins = 100, std::string title = "" );
    Histo1DDef( std::string title = "", double low = 0.0, double high = 1.0, int bins = 100 );
    double lowEdge() const { return m_low; }
    double highEdge() const { return m_high; }
    int bins() const { return m_bins; }
    const std::string& title() const { return m_title; }
    void setLowEdge( double value ) { m_low = value; }
    void setHighEdge( double value ) { m_high = value; }
    void setBins( int value ) { m_bins = value; }
    void setTitle( std::string value ) { m_title = std::move( value ); }
    std::ostream& fillStream( std::ostream& o ) const;
    friend bool operator<( const Histo1DDef& left, const Histo1DDef& right );
    friend std::ostream& operator<<( std::ostream& o, const Gaudi::Histo1DDef& histo );
    bool        ok() const { return 0 < bins() && lowEdge() < highEdge(); }
    std::string m_title; 
    double      m_low;   
    double      m_high;  
    int         m_bins;  
  };

  namespace Histos {
    GAUDI_API AIDA::IHistogram1D* book( IHistogramSvc* svc, const std::string& path, const Gaudi::Histo1DDef& hist );
    GAUDI_API AIDA::IHistogram1D* book( IHistogramSvc* svc, const std::string& dir, const std::string& id,
                                        const Gaudi::Histo1DDef& hist );
    GAUDI_API AIDA::IHistogram1D* book( IHistogramSvc* svc, const std::string& dir, const int id,
                                        const Gaudi::Histo1DDef& hist );
  } // namespace Histos
} // namespace Gaudi