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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Img3D/Model/GeometryStore.h
//! @brief Defines class GeometryStore.
//!
//! @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 BORNAGAIN_IMG3D_MODEL_GEOMETRYSTORE_H
#define BORNAGAIN_IMG3D_MODEL_GEOMETRYSTORE_H
#include "Img3D/Model/Geometry_inc.h"
#include <QObject>
#include <unordered_map>
namespace Img3D {
class Geometry;
//! A single instance of this store keeps existing geometries for sharing
class GeometryStore : public QObject {
Q_OBJECT
using GeometryRef = std::weak_ptr<Geometry>;
public:
std::shared_ptr<Geometry> getGeometry(GeometricID::Key);
void geometryDeleted(Geometry const&, GeometricID::Key key); // ~Geometry() calls this
signals:
void deletingGeometry(Geometry const*);
private:
struct KeyHash {
std::size_t operator()(const GeometricID::Key& key) const noexcept;
};
std::unordered_map<GeometricID::Key, GeometryRef, GeometryStore::KeyHash> m_geometries;
//! Hash functor for Key objects
};
GeometryStore& geometryStore(); // simpleton
} // namespace Img3D
#endif // BORNAGAIN_IMG3D_MODEL_GEOMETRYSTORE_H
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