CommonXAxis.h

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#ifndef _ROOT_COMMONXAXIS_H
#define _ROOT_COMMONXAXIS_H

#include <iostream>

#ifndef ROOT_TH1
#include "TAxis.h"
#endif

// It is just a structure *TAxis and shift and...shift_left ??
// Do not derive of TAxis, but encapsulate
//
// Or real Axis and then derive
class CommonXAxis
{
    private:
            TAxis *fcommon_axis;
        
            //shift keep the shift in "bin" between the max axis bin and the data in ListDataStock
            //if >0 show "futur", e.g., to see the crossing of line in the futur
            //if <0 gives automatically the shift between the last bin to print and the last data, will simplify Painter
            // negative not used, only futur is used
        Int_t shift;

    public:
        //should initialze
            CommonXAxis() : fcommon_axis (0), shift(0) {
#ifdef DEBUG_CONT_FRAME
                std::cout << " Constructor Common XAxis " << std::endl;
                std::cout << "this " << this << std::endl;
#endif
            }
            ~CommonXAxis() {
#ifdef DEBUG_CONT_FRAME
                std::cout << " Destructor Common XAxis " << std::endl;
#endif
            }

        TAxis * GetXAxis() {return fcommon_axis;}
        void SetCommonXAxis( TAxis *xaxis ) {
#ifdef DEBUG_CONT_FRAME
             std::cout << " CommonXaxis SetCommonXaxis from TAxis * " << std::endl;
             std::cout << "\t xaxis first, last " << xaxis->GetFirst() << " " << xaxis->GetLast() << std::endl;
#endif
             fcommon_axis = xaxis;
             //std::cout << "\t after referencing first, last " << GetFirst() << " " << GetLast() << std::endl;
             shift = 0;
        }

        // new added
        // coming from CanvasStock, old name UpdateCommonAxis
        void UpdateCommonAxis ( int new_size );

            //copy not necessary I think
            Int_t GetShift() const { return shift; }
            void SetShift( UInt_t new_shift ) { shift = new_shift; }
        void IncrShift() { shift +=1 ; }
        void DecrShift() { shift -=1 ; }

        //Can make some shortcut for most common Axis function members
        Int_t GetNbins() { if ( fcommon_axis==0 ) return -1; return fcommon_axis->GetNbins(); }
        Int_t GetFirst() { return fcommon_axis->GetFirst(); }
        Int_t GetLast()  { return fcommon_axis->GetLast(); }
        // new added
        //void IncrLast() { fLast += 1;}
        
        //for dictionary, no need to write
        //ClassDef(CommonXAxis,0);
};

#endif /* _ROOT_COMMONXAXIS_H */