DetectorContext.h

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      Device/Detector/DetectorContext.h
//! @brief     Define DetectorContext class.
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#ifndef USER_API
#ifndef BORNAGAIN_DEVICE_DETECTOR_DETECTORCONTEXT_H
#define BORNAGAIN_DEVICE_DETECTOR_DETECTORCONTEXT_H
 
#include "Base/Pixel/IPixel.h"
#include "Base/Spin/SpinMatrix.h"
#include <memory>
#include <vector>
 
class IDetector;
 
//! Holds precalculated information for faster DiffuseElement generation.
//! @ingroup detector
 
class DetectorContext {
public:
    DetectorContext(const IDetector* detector);
 
    DetectorContext(const DetectorContext& other) = delete;
    DetectorContext& operator=(const DetectorContext& other) = delete;
 
    size_t numberOfElements() const;
 
    std::unique_ptr<IPixel> createPixel(size_t element_index) const;
 
    size_t detectorIndex(size_t element_index) const;
 
private:
    void setup_context(const IDetector* detector);
 
    SpinMatrix m_analyzer_operator;
    std::vector<std::unique_ptr<IPixel>> m_pixels; //! All unmasked pixels inside ROI.
    std::vector<size_t> m_active_indices; //! The sequence of bin indices (unmasked, in ROI)
};
 
#endif // BORNAGAIN_DEVICE_DETECTOR_DETECTORCONTEXT_H
#endif // USER_API