MovieScenePropertyMetaData.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Templates/Models.h"
#include "EntitySystem/MovieSceneEntityIDs.h"
#include "EntitySystem/MovieSceneComponentTypeIDs.h"
 
namespace UE::MovieScene
{
 
struct FComponentRegistry;
 
template<typename>
struct TPropertyMetaDataComponents;
 
template<typename ...MetaDataTypes>
struct TPropertyMetaData
{
    static constexpr int32 Num = sizeof...(MetaDataTypes);
};
 
struct CPublicMetaDataRetrievable
{
    template<typename T>
    auto Requires() -> typename T::PublicMetaData;
};
 
template<typename PropertyTraits, bool B = TModels_V<CPublicMetaDataRetrievable, PropertyTraits>>
struct TGetPublicPropertyMetaData;
 
template<typename PropertyTraits>
struct TGetPublicPropertyMetaData<PropertyTraits, true>
{
    using Type = typename PropertyTraits::PublicMetaData;
};
template<typename PropertyTraits>
struct TGetPublicPropertyMetaData<PropertyTraits, false>
{
    using Type = typename PropertyTraits::MetaDataType;
};
 
template<typename PropertyTraits>
using TGetPublicPropertyMetaDataT = typename TGetPublicPropertyMetaData<PropertyTraits>::Type;
 
template<typename ...MetaDataTypes>
struct TPropertyMetaDataComponents<TPropertyMetaData<MetaDataTypes...>> : TComponentTypeIDs<MetaDataTypes...>
{
    template<typename T> using MakeTCHARPtr = const TCHAR*;
 
    using TComponentTypeIDs<MetaDataTypes...>::Initialize;
 
    // #include "EntitySystem/MovieScenePropertyMetaData.inl" for definition
    //
    void Initialize(FComponentRegistry* ComponentRegistry, MakeTCHARPtr<MetaDataTypes>... DebugNames);
};
 
} // namespace UE::MovieScene