Files
UnrealEngine/Engine/Source/Editor/MovieSceneTools/Public/Channels/ChannelCurveModel.h
2025-05-18 13:04:45 +08:00

120 lines
4.4 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Channels/MovieSceneBoolChannel.h"
#include "Channels/MovieSceneChannelHandle.h"
#include "Channels/MovieSceneDoubleChannel.h"
#include "Channels/MovieSceneFloatChannel.h"
#include "Channels/MovieSceneIntegerChannel.h"
#include "Containers/Array.h"
#include "Containers/ArrayView.h"
#include "CoreTypes.h"
#include "CurveEditorTypes.h"
#include "CurveModel.h"
#include "Curves/KeyHandle.h"
#include "Delegates/IDelegateInstance.h"
#include "IBufferedCurveModel.h"
#include "Misc/OptionalFwd.h"
#include "MovieSceneSection.h"
#include "Templates/SharedPointer.h"
#include "Templates/Tuple.h"
#include "UObject/UnrealType.h"
#include "UObject/WeakObjectPtr.h"
#include "UObject/WeakObjectPtrTemplates.h"
#include "Misc/Guid.h"
class FCurveEditor;
class FString;
class ISequencer;
class UMovieSceneSection;
class UObject;
struct FCurveAttributes;
struct FCurveEditorScreenSpace;
struct FKeyAttributes;
struct FKeyDrawInfo;
struct FKeyPosition;
template <class ChannelType, class ChannelValue, class KeyType>
class FChannelCurveModel : public FCurveModel
{
public:
FChannelCurveModel(TMovieSceneChannelHandle<ChannelType> InChannel, UMovieSceneSection* InOwningSection, TWeakPtr<ISequencer> InWeakSequencer);
FChannelCurveModel(TMovieSceneChannelHandle<ChannelType> InChannel, UMovieSceneSection* InOwningSection, UObject* InOwningObject, TWeakPtr<ISequencer> InWeakSequencer);
~FChannelCurveModel();
virtual const void* GetCurve() const override;
virtual void Modify() override;
virtual void DrawCurve(const FCurveEditor& CurveEditor, const FCurveEditorScreenSpace& ScreenSpace, TArray<TTuple<double, double>>& OutInterpolatingPoints) const override;
virtual void GetKeys(double MinTime, double MaxTime, double MinValue, double MaxValue, TArray<FKeyHandle>& OutKeyHandles) const override;
virtual void GetKeyDrawInfo(ECurvePointType PointType, const FKeyHandle InKeyHandle, FKeyDrawInfo& OutDrawInfo) const override;
virtual void GetKeyPositions(TArrayView<const FKeyHandle> InKeys, TArrayView<FKeyPosition> OutKeyPositions) const override;
virtual void SetKeyPositions(TArrayView<const FKeyHandle> InKeys, TArrayView<const FKeyPosition> InKeyPositions, EPropertyChangeType::Type ChangeType = EPropertyChangeType::Unspecified) override;
virtual void GetCurveAttributes(FCurveAttributes& OutCurveAttributes) const override;
virtual void GetTimeRange(double& MinTime, double& MaxTime) const override;
virtual void GetValueRange(double& MinValue, double& MaxValue) const override;
virtual int32 GetNumKeys() const override;
virtual void GetNeighboringKeys(const FKeyHandle InKeyHandle, TOptional<FKeyHandle>& OutPreviousKeyHandle, TOptional<FKeyHandle>& OutNextKeyHandle) const override;
virtual bool Evaluate(double ProspectiveTime, double& OutValue) const override;
virtual void AddKeys(TArrayView<const FKeyPosition> InKeyPositions, TArrayView<const FKeyAttributes> InAttributes, TArrayView<TOptional<FKeyHandle>>* OutKeyHandles) override;
virtual void RemoveKeys(TArrayView<const FKeyHandle> InKeys, double InCurrentTime) override;
virtual FTransform2d GetCurveTransform() const override;
virtual bool IsReadOnly() const override;
virtual UObject* GetOwningObject() const override
{
if (UObject* OwningObject = WeakOwningObject.Get())
{
return OwningObject;
}
return WeakSection.Get();
}
virtual bool HasChangedAndResetTest() override
{
UMovieSceneSignedObject* SignedOwner = Cast<UMovieSceneSignedObject>(WeakOwningObject.Get());
if (!SignedOwner)
{
SignedOwner = WeakSection.Get();
}
if (SignedOwner)
{
if (SignedOwner->GetSignature() != LastSignature)
{
LastSignature = SignedOwner->GetSignature();
return true;
}
return false;
}
return true;
}
virtual void GetCurveColorObjectAndName(UObject** OutObject, FString& OutName) const override;
protected:
virtual double GetKeyValue(TArrayView<const ChannelValue> Values, int32 Index) const = 0;
virtual void SetKeyValue(int32 Index, double KeyValue) const = 0;
public:
const TMovieSceneChannelHandle<ChannelType>& GetChannelHandle() const { return ChannelHandle; }
private:
void FixupCurve();
protected:
TMovieSceneChannelHandle<ChannelType> ChannelHandle;
TWeakObjectPtr<UMovieSceneSection> WeakSection;
TWeakObjectPtr<> WeakOwningObject;
TWeakPtr<ISequencer> WeakSequencer;
FDelegateHandle OnDestroyHandle;
FGuid LastSignature;
};