MRRenderWrapObject.h

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#pragma once
 
#include "MRMesh/MRMeshFwd.h"
#include "MRMesh/MRVisualObject.h"
 
namespace MR::RenderWrapObject
{
 
namespace detail
{
    template <typename ObjectType>
    struct SubobjectStorage
    {
        ObjectType subobject;
    };
 
    class BasicWrapperTargetUntyped
    {
    protected:
        ~BasicWrapperTargetUntyped() = default;
    };
}

template <std::derived_from<Object> ObjectType>
class BasicWrapperTarget : public detail::BasicWrapperTargetUntyped
{
protected:
    ~BasicWrapperTarget() = default;
public:
    const ObjectType* target_ = nullptr;
};

template <typename ObjectType, typename RenderObjectType>
class Wrapper : public detail::SubobjectStorage<ObjectType>, public RenderObjectType
{
public:
    Wrapper( const VisualObject& object )
        : RenderObjectType( detail::SubobjectStorage<ObjectType>::subobject )
    {
        if constexpr ( std::derived_from<ObjectType, detail::BasicWrapperTargetUntyped> )
            this->subobject.target_ = &dynamic_cast<decltype(*this->subobject.target_)>( object );
    }
 
    Wrapper( const Wrapper& ) = delete;
    Wrapper& operator=( const Wrapper& ) = delete;
};
 
}