85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/Map.h"
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#include "EventHandlers/ISequenceDataEventHandler.h"
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#include "EventHandlers/MovieSceneDataEventContainer.h"
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#include "MVVM/Extensions/DynamicExtensionContainer.h"
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#include "MVVM/ViewModelTypeID.h"
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#include "Misc/Guid.h"
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#include "Templates/SharedPointer.h"
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#define UE_API SEQUENCER_API
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class UMovieSceneTrack;
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namespace UE::MovieScene { class ISequenceDataEventHandler; }
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struct FMovieSceneBinding;
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namespace UE
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{
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namespace Sequencer
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{
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class FObjectBindingModel;
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class FPlaceholderObjectBindingModel;
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class FSequenceModel;
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class FViewModel;
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struct FViewModelChildren;
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class FObjectBindingModelStorageExtension
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: public IDynamicExtension
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, private UE::MovieScene::TIntrusiveEventHandler<UE::MovieScene::ISequenceDataEventHandler>
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{
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public:
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UE_SEQUENCER_DECLARE_VIEW_MODEL_TYPE_ID_API(UE_API, FObjectBindingModelStorageExtension);
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UE_API FObjectBindingModelStorageExtension();
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/**
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* Implementation function for creating a new model for a binding from its ID. May return a placeholder if the binding does not yet exist.
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* @param Binding The binding to create a model for
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*/
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UE_API TSharedPtr<FViewModel> GetOrCreateModelForBinding(const FGuid& Binding);
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/**
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* Implementation function for creating a new model for a binding
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* @param Binding The binding to create a model for
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*/
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UE_API TSharedPtr<FViewModel> GetOrCreateModelForBinding(const FMovieSceneBinding& Binding);
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UE_API TSharedPtr<FObjectBindingModel> FindModelForObjectBinding(const FGuid& InObjectBindingID) const;
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UE_API virtual void OnCreated(TSharedRef<FViewModel> InWeakOwner) override;
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UE_API virtual void OnReinitialize() override;
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private:
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UE_API void OnBindingAdded(const FMovieSceneBinding& Binding) override;
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UE_API void OnBindingRemoved(const FGuid& ObjectBindingID) override;
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UE_API void OnTrackAddedToBinding(UMovieSceneTrack* Track, const FGuid& Binding) override;
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UE_API void OnTrackRemovedFromBinding(UMovieSceneTrack* Track, const FGuid& Binding) override;
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UE_API void OnBindingParentChanged(const FGuid& Binding, const FGuid& NewParent) override;
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UE_API TSharedPtr<FObjectBindingModel> CreateModelForObjectBinding(const FMovieSceneBinding& Binding);
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UE_API TSharedPtr<FViewModel> CreatePlaceholderForObjectBinding(const FGuid& ObjectID);
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UE_API TSharedPtr<FViewModel> FindPlaceholderForObjectBinding(const FGuid& InObjectBindingID) const;
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UE_API void Compact();
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private:
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TMap<FGuid, TWeakPtr<FObjectBindingModel>> ObjectBindingToModel;
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TMap<FGuid, TWeakPtr<FPlaceholderObjectBindingModel>> ObjectBindingToPlaceholder;
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FSequenceModel* OwnerModel;
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};
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} // namespace Sequencer
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} // namespace UE
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#undef UE_API
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