85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "UObject/ObjectMacros.h"
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#include "UObject/Object.h"
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#include "Channels/MovieSceneChannelHandle.h"
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#include "Evaluation/MovieSceneEvaluationField.h"
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#include "EntitySystem/IMovieSceneEntityProvider.h"
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#include "EntitySystem/MovieSceneEntityIDs.h"
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#include "MovieSceneSection.h"
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#include "MovieSceneSignedObject.h"
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#include "Misc/InlineValue.h"
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#include "MovieSceneChannelOverrideContainer.generated.h"
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class UMovieSceneEntitySystemLinker;
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struct FMovieSceneChannel;
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struct FMovieSceneChannelMetaData;
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struct FMovieSceneChannelProxyData;
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struct FMovieSceneEntityComponentFieldBuilder;
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namespace UE
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{
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namespace MovieScene
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{
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/**
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* Entity import parameters for a channel override.
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*/
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struct FChannelOverrideEntityImportParams
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{
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FName ChannelName;
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UE::MovieScene::FComponentTypeID ResultComponent;
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};
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} // namespace MovieScene
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} // namespace UE
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/**
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* A wrapper to implement polymorphism for FMovieSceneChannel.
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*/
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UCLASS(Abstract, MinimalAPI)
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class UMovieSceneChannelOverrideContainer : public UMovieSceneSignedObject
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{
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GENERATED_BODY()
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public:
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/** Initialize this container
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*
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* @param InChannel The channel being overriden
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*/
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virtual void InitializeOverride(FMovieSceneChannel* InChannel) {}
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/** Returns whether this container's underlying channel can be used as an override to the given channel type */
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virtual bool SupportsOverride(FName DefaultChannelTypeName) const { return false; }
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/** Imports the entity for this channel */
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virtual void ImportEntityImpl(
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const UE::MovieScene::FChannelOverrideEntityImportParams& OverrideParams,
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const UE::MovieScene::FEntityImportParams& ImportParams, UE::MovieScene::FImportedEntity* OutImportedEntity) {};
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/** Gets the underlying channel */
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virtual const FMovieSceneChannel* GetChannel() const { return nullptr; }
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/** Gets the underlying channel */
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virtual FMovieSceneChannel* GetChannel() { return nullptr; }
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#if WITH_EDITOR
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/** Caches the channel proxy for this channel */
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virtual FMovieSceneChannelHandle AddChannelProxy(FName ChannelName, FMovieSceneChannelProxyData& ProxyData, const FMovieSceneChannelMetaData& MetaData) { return FMovieSceneChannelHandle(); }
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#else
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virtual void AddChannelProxy(FName ChannelName, FMovieSceneChannelProxyData& ProxyData) {}
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#endif
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public:
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using FOverrideCandidates = TArray<TSubclassOf<UMovieSceneChannelOverrideContainer>, TInlineAllocator<8>>;
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/** Get a list of channel overrides that can work in the place of the given channel type */
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static MOVIESCENE_API void GetOverrideCandidates(FName InDefaultChannelTypeName, FOverrideCandidates& OutCandidates);
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};
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