MovieSceneEventChannel.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Channels/MovieSceneChannel.h"
#include "Channels/MovieSceneChannelData.h"
#include "Channels/MovieSceneChannelTraits.h"
#include "Channels/MovieSceneEvent.h"
#include "Containers/Array.h"
#include "Containers/ArrayView.h"
#include "CoreTypes.h"
#include "Curves/KeyHandle.h"
#include "Math/Range.h"
#include "Misc/FrameNumber.h"
#include "Misc/FrameTime.h"
#include "UObject/ObjectMacros.h"
 
#include "MovieSceneEventChannel.generated.h"
 
struct FFrameRate;
struct FKeyHandle;
 
 
USTRUCT()
struct FMovieSceneEventChannel : public FMovieSceneChannel
{
    GENERATED_BODY()
 
    typedef FMovieSceneEvent CurveValueType;
 
    inline TMovieSceneChannelData<FMovieSceneEvent> GetData()
    {
        return TMovieSceneChannelData<FMovieSceneEvent>(&KeyTimes, &KeyValues, this, &KeyHandles);
    }
 
    inline TMovieSceneChannelData<const FMovieSceneEvent> GetData() const
    {
        return TMovieSceneChannelData<const FMovieSceneEvent>(&KeyTimes, &KeyValues);
    }
 
public:
 
    // ~ FMovieSceneChannel Interface
    MOVIESCENETRACKS_API virtual void GetKeys(const TRange<FFrameNumber>& WithinRange, TArray<FFrameNumber>* OutKeyTimes, TArray<FKeyHandle>* OutKeyHandles) override;
    MOVIESCENETRACKS_API virtual void GetKeyTimes(TArrayView<const FKeyHandle> InHandles, TArrayView<FFrameNumber> OutKeyTimes) override;
    MOVIESCENETRACKS_API virtual void SetKeyTimes(TArrayView<const FKeyHandle> InHandles, TArrayView<const FFrameNumber> InKeyTimes) override;
    MOVIESCENETRACKS_API virtual void DuplicateKeys(TArrayView<const FKeyHandle> InHandles, TArrayView<FKeyHandle> OutNewHandles) override;
    MOVIESCENETRACKS_API virtual void DeleteKeys(TArrayView<const FKeyHandle> InHandles) override;
    MOVIESCENETRACKS_API virtual void DeleteKeysFrom(FFrameNumber InTime, bool bDeleteKeysBefore) override;
    MOVIESCENETRACKS_API virtual void RemapTimes(const UE::MovieScene::IRetimingInterface& Retimer) override;
    MOVIESCENETRACKS_API virtual TRange<FFrameNumber> ComputeEffectiveRange() const override;
    MOVIESCENETRACKS_API virtual int32 GetNumKeys() const override;
    MOVIESCENETRACKS_API virtual void Reset() override;
    MOVIESCENETRACKS_API virtual void Offset(FFrameNumber DeltaPosition) override;
    MOVIESCENETRACKS_API virtual FKeyHandle GetHandle(int32 Index) override;
    MOVIESCENETRACKS_API virtual int32 GetIndex(FKeyHandle Handle) override;
private:
 
    UPROPERTY(meta=(KeyTimes))
    TArray<FFrameNumber> KeyTimes;
 
    UPROPERTY(meta=(KeyValues))
    TArray<FMovieSceneEvent> KeyValues;
 
    UPROPERTY(Transient)
    FMovieSceneKeyHandleMap KeyHandles;
};
 
template<>
struct TMovieSceneChannelTraits<FMovieSceneEventChannel> : TMovieSceneChannelTraitsBase<FMovieSceneEventChannel>
{
    enum { SupportsDefaults = false };
};
 
inline bool EvaluateChannel(const FMovieSceneEventChannel* InChannel, FFrameTime InTime, FMovieSceneEvent& OutValue)
{
    return false;
}