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| 1 | +// Copyright 2019-2026 CERN and copyright holders of ALICE O2. |
| 2 | +// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders. |
| 3 | +// All rights not expressly granted are reserved. |
| 4 | +// |
| 5 | +// This software is distributed under the terms of the GNU General Public |
| 6 | +// License v3 (GPL Version 3), copied verbatim in the file "COPYING". |
| 7 | +// |
| 8 | +// In applying this license CERN does not waive the privileges and immunities |
| 9 | +// granted to it by virtue of its status as an Intergovernmental Organization |
| 10 | +// or submit itself to any jurisdiction. |
| 11 | + |
| 12 | +#ifndef _O2_HISTOMANAGER_H_ |
| 13 | +#define _O2_HISTOMANAGER_H_ |
| 14 | + |
| 15 | +#include <string> |
| 16 | +#include <Rtypes.h> |
| 17 | +#include "TObjArray.h" |
| 18 | + |
| 19 | +class TH1; |
| 20 | +class TH2; |
| 21 | +class TH1F; |
| 22 | +class TH2F; |
| 23 | +class TProfile; |
| 24 | +class TGraph; |
| 25 | +class TFile; |
| 26 | + |
| 27 | +namespace o2 |
| 28 | +{ |
| 29 | + |
| 30 | +class HistoManager : public TObjArray |
| 31 | +{ |
| 32 | + public: |
| 33 | + HistoManager(const std::string& dirname = "", const std::string& fname = "histoman.root", bool load = kFALSE, const std::string& prefix = ""); |
| 34 | + ~HistoManager() override { Delete(); } |
| 35 | + |
| 36 | + HistoManager* createClone(const std::string& prefix) const; |
| 37 | + void addPrefix(const std::string& pref = ""); |
| 38 | + |
| 39 | + int getNHistos() const { return mNHistos; } |
| 40 | + TGraph* getGraph(int id) const; |
| 41 | + TH1* getHisto(int id) const; |
| 42 | + TH1* getHisto(const std::string& name) const; |
| 43 | + TH1F* getHisto1F(int id) const; |
| 44 | + TH2F* getHisto2F(int id) const; |
| 45 | + TProfile* getHistoP(int id) const; |
| 46 | + |
| 47 | + int addHisto(TH1* histo, int at = -1); |
| 48 | + int addGraph(TGraph* gr, int at = -1); |
| 49 | + void delHisto(int at); |
| 50 | + |
| 51 | + void setFile(TFile* file); |
| 52 | + void setFileName(const std::string& fname); |
| 53 | + const std::string& getFileName() const { return mDefName; } |
| 54 | + void setDirName(const std::string& name) { mDirName = name; } |
| 55 | + const std::string& getDirName() const { return mDirName; } |
| 56 | + |
| 57 | + void reset(); |
| 58 | + void write(TFile* file = nullptr); |
| 59 | + int write(const std::string& flname) |
| 60 | + { |
| 61 | + setFileName(flname); |
| 62 | + write(); |
| 63 | + return 0; |
| 64 | + } |
| 65 | + |
| 66 | + void addHistos(const HistoManager* hm, Double_t c1 = 1.); |
| 67 | + void divideHistos(const HistoManager* hm); |
| 68 | + void multiplyHistos(const HistoManager* hm); |
| 69 | + void scaleHistos(Double_t c1 = 1.); |
| 70 | + void setColor(int tcolor = 1); |
| 71 | + void setMarkerStyle(Style_t mstyle = 1, Size_t msize = 1); |
| 72 | + void setMarkerSize(Size_t msize = 1); |
| 73 | + void sumw2(); |
| 74 | + int load(const std::string& fname, const std::string& dirname = ""); |
| 75 | + |
| 76 | + void purify(bool emptyToo = kFALSE); |
| 77 | + |
| 78 | + void Print(Option_t* option = "") const override; |
| 79 | + void Clear(Option_t* option = "") override; |
| 80 | + void Delete(Option_t* option = "") override; |
| 81 | + void Compress() override; |
| 82 | + |
| 83 | + private: |
| 84 | + int mNHistos{0}; //! Number of histograms defined |
| 85 | + std::string mDefName{}; //! Default file name |
| 86 | + std::string mDirName{}; //! Directory name in the output file |
| 87 | + |
| 88 | + ClassDefOverride(HistoManager, 0); |
| 89 | +}; |
| 90 | + |
| 91 | +} // namespace o2 |
| 92 | + |
| 93 | +#endif // _O2_HISTOMANAGER_H_ |
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