MovieSceneBaseCacheSection.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "MovieSceneSection.h"
#include "MovieSceneBaseCacheSection.generated.h"
 
USTRUCT()
struct FMovieSceneBaseCacheParams
{
    GENERATED_BODY()
 
    
    MOVIESCENETRACKS_API FMovieSceneBaseCacheParams();
    virtual ~FMovieSceneBaseCacheParams() {}
 
    virtual float GetSequenceLength() const {return 0.0f;}
 
    UPROPERTY(EditAnywhere, Category = "Cache")
    FFrameNumber FirstLoopStartFrameOffset;
 
    UPROPERTY(EditAnywhere, Category = "Cache")
    FFrameNumber StartFrameOffset;
 
    UPROPERTY(EditAnywhere, Category = "Cache")
    FFrameNumber EndFrameOffset;
 
    UPROPERTY(EditAnywhere, Category = "Cache")
    float PlayRate;
 
    UPROPERTY(EditAnywhere, Category = "Cache")
    uint32 bReverse : 1;
};
 
UCLASS(MinimalAPI)
class  UMovieSceneBaseCacheSection
    : public UMovieSceneSection
{
    GENERATED_UCLASS_BODY()
 
public:
    FMovieSceneBaseCacheParams* ParamsPtr = nullptr;
    
    MOVIESCENETRACKS_API virtual float MapTimeToAnimation(float ComponentDuration, FFrameTime InPosition, FFrameRate InFrameRate) const;
    MOVIESCENETRACKS_API virtual TOptional<TRange<FFrameNumber> > GetAutoSizeRange() const override;
    
protected:
    //~ UMovieSceneSection interface
    MOVIESCENETRACKS_API virtual void TrimSection(FQualifiedFrameTime TrimTime, bool bTrimLeft, bool bDeleteKeys) override;
    MOVIESCENETRACKS_API virtual UMovieSceneSection* SplitSection(FQualifiedFrameTime SplitTime, bool bDeleteKeys) override;
    MOVIESCENETRACKS_API virtual void GetSnapTimes(TArray<FFrameNumber>& OutSnapTimes, bool bGetSectionBorders) const override;
    MOVIESCENETRACKS_API virtual TOptional<FFrameTime> GetOffsetTime() const override;
 
#if WITH_EDITOR
    MOVIESCENETRACKS_API void InitializePlayRate();
 
private:
    MOVIESCENETRACKS_API virtual void PreEditChange(FProperty* PropertyAboutToChange) override;
    MOVIESCENETRACKS_API virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
public:
    float PreviousPlayRate;
 
#endif
};