CurveOwnerInterface.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Curves/RichCurve.h"
#include "UObject/PackageReload.h"
#include "Containers/AdderRef.h"
 
class FCurveOwnerInterface
{
public:
 
    virtual ~FCurveOwnerInterface() { }
 
    UE_DEPRECATED(5.6, "Use version taking a TAdderReserverRef")
    virtual TArray<FRichCurveEditInfoConst> GetCurves() const = 0;
 
    virtual void GetCurves(TAdderReserverRef<FRichCurveEditInfoConst> Curves) const = 0;
 
    virtual TArray<FRichCurveEditInfo> GetCurves() = 0;
 
    virtual void ModifyOwner() = 0;
 
    virtual void ModifyOwnerChange() { ModifyOwner(); }
 
    virtual TArray<const UObject*> GetOwners() const = 0;
 
    virtual void MakeTransactional() = 0;
 
    virtual void OnCurveChanged(const TArray<FRichCurveEditInfo>& ChangedCurveEditInfos) = 0;
 
    virtual void SetOnCurveChangedIsInteractive(bool bInteractive) { };
 
    virtual bool IsLinearColorCurve() const
    {
        return false;
    }
 
    virtual bool HasRichCurves() const
    {
        return true;
    }
 
    virtual FLinearColor GetLinearColorValue(float InTime) const
    {
        return FLinearColor::Black;
    }
 
    virtual FLinearColor GetClampedLinearColorValue(float InTime) const
    {
        return FLinearColor::Black;
    }
 
    virtual bool HasAnyAlphaKeys() const
    {
        return false;
    }
 
    virtual bool IsValidCurve(FRichCurveEditInfo CurveInfo) = 0;
 
    ENGINE_API virtual FLinearColor GetCurveColor(FRichCurveEditInfo CurveInfo) const;
 
    virtual bool RepointCurveOwner(const FPackageReloadedEvent& InPackageReloadedEvent, FCurveOwnerInterface*& OutNewCurveOwner) const
    {
        return false;
    }
    
protected:
    template <typename AssetType>
    static bool RepointCurveOwnerAsset(const FPackageReloadedEvent& InPackageReloadedEvent, const AssetType* InCurveOwnerAsset, FCurveOwnerInterface*& OutNewCurveOwner)
    {
        AssetType* NewCurveOwnerAsset = nullptr;
        const bool bDidRepoint = InPackageReloadedEvent.GetRepointedObject(InCurveOwnerAsset, NewCurveOwnerAsset);
        OutNewCurveOwner = NewCurveOwnerAsset;
        return bDidRepoint;
    }
};