LoadDaveGrp.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include <fstream>
#include <string>
#include <vector>
 
#include "MantidAPI/IFileLoader.h"
#include "MantidDataHandling/DllConfig.h"
#include "MantidKernel/FileDescriptor.h"
#include "MantidKernel/cow_ptr.h"
 
namespace Mantid {
namespace DataHandling {
class MANTID_DATAHANDLING_DLL LoadDaveGrp : public API::IFileLoader<Kernel::FileDescriptor> {
public:
  LoadDaveGrp();
  const std::string name() const override { return "LoadDaveGrp"; }
  const std::string summary() const override {
    return "Loads data from a DAVE grouped ASCII file and stores it in a 2D "
           "workspace (Workspace2D class).";
  }
 
  int version() const override { return (1); }
  const std::vector<std::string> seeAlso() const override { return {"SaveDaveGrp"}; }
  const std::string category() const override { return "DataHandling\\Text;Inelastic\\DataHandling"; }
  int confidence(Kernel::FileDescriptor &descriptor) const override;
 
private:
  void init() override;
  void exec() override;
  void getAxisLength(size_t &length);
 
  void getAxisValues(std::vector<double> &axis, const std::size_t length);
 
  void getData(const API::MatrixWorkspace_sptr &workspace);
 
  API::MatrixWorkspace_sptr setupWorkspace() const;
 
  void setWorkspaceAxes(const API::MatrixWorkspace_sptr &workspace, const std::vector<double> &xAxis,
                        const std::vector<double> &yAxis) const;
 
  API::MatrixWorkspace_sptr convertWorkspaceToHistogram(API::MatrixWorkspace_sptr workspace);
 
  void readLine();
 
  std::ifstream ifile;
  std::string line;
  std::size_t nGroups;
  std::size_t xLength;
};
 
} // namespace DataHandling
} // namespace Mantid