qt-everywhere-src-5.14.1/qt3d/src/input/backend/inputbackendnodefunctor_p.h

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#ifndef QT3DINPUT_INPUT_INPUTBACKENDNODEFUNCTOR_P_H
#define QT3DINPUT_INPUT_INPUTBACKENDNODEFUNCTOR_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <Qt3DCore/qbackendnode.h>
#include <Qt3DCore/qnode.h>

QT_BEGIN_NAMESPACE

namespace Qt3DInput {

namespace Input {

template<class Backend, class Manager>
class InputNodeFunctor : public Qt3DCore::QBackendNodeMapper
{
public:
    explicit InputNodeFunctor(Manager *manager)
        : m_manager(manager)
    {
    }

    Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const final
    {
        Backend *backend = m_manager->getOrCreateResource(change->subjectId());
        return backend;
    }

    Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const final
    {
        return m_manager->lookupResource(id);
    }

    void destroy(Qt3DCore::QNodeId id) const final
    {
        m_manager->releaseResource(id);
    }

private:
    Manager *m_manager;
};

} // Input

} // Qt3DInput

QT_END_NAMESPACE

#endif // QT3DINPUT_INPUT_INPUTBACKENDNODEFUNCTOR_P_H