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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Resample/Particle/ReParticle.h
//! @brief Defines class interface ReParticle.
//!
//! @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)
//
// ************************************************************************************************
#ifdef SWIG
#error no need to expose this header to Swig
#endif // SWIG
#ifndef BORNAGAIN_RESAMPLE_PARTICLE_REPARTICLE_H
#define BORNAGAIN_RESAMPLE_PARTICLE_REPARTICLE_H
#include "Base/Vector/RotMatrix.h"
#include "Resample/Particle/IReParticle.h"
#include <heinz/Vectors3D.h>
#include <memory>
class IFormfactor;
class Material;
//! A reprocessed simple particle, with shape m_ff.
class ReParticle : public IReParticle {
public:
ReParticle(const IFormfactor* ff, const R3* position, const RotMatrix* rot);
~ReParticle() override;
#ifndef SWIG
ReParticle* clone() const override;
#endif // SWIG
//! Sets the material of the scatterer
void setMaterial(const Material& material);
//! Sets the ambient material
void setAmbientMaterial(const Material& ambient_material) override;
complex_t theFF(const WavevectorInfo& wavevectors) const override;
SpinMatrix thePolFF(const WavevectorInfo& wavevectors) const override;
double volume() const;
double radialExtension() const override;
Span zSpan() const override;
bool contains(const R3& position) const;
bool consideredEqualTo(const IReParticle& ire) const override;
// TODO: should these pointer-returning functions be exposed to the Python interface
const IFormfactor* ff() const { return m_ff.get(); }
const Material* material() const { return m_material.get(); }
const Material* ambientMaterial() const { return m_ambient_material.get(); }
const RotMatrix* rotMatrix() const { return m_rot_matrix.get(); }
const R3* position() const override { return m_position.get(); }
private:
const std::unique_ptr<const IFormfactor> m_ff;
std::unique_ptr<const Material> m_material;
std::unique_ptr<const Material> m_ambient_material;
const std::unique_ptr<const R3> m_position;
const std::unique_ptr<const RotMatrix> m_rot_matrix;
ReParticle(const std::optional<size_t>& i_layer, const IFormfactor* ff,
const Material* material, const Material* ambient_material, const R3* position,
const RotMatrix* rotMatrix);
};
#endif // BORNAGAIN_RESAMPLE_PARTICLE_REPARTICLE_H
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