CurveEdInterface.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "Math/Color.h"
#include "Math/InterpCurvePoint.h"
 
class FCurveEdInterface
{
public:
    virtual int32   GetNumKeys() const { return 0; }
 
    virtual int32       GetNumSubCurves() const { return 0; }
 
    virtual FColor  GetSubCurveButtonColor(int32 SubCurveIndex, bool bIsSubCurveHidden) const { return  bIsSubCurveHidden ? FColor( 32,  0,  0) : FColor(255,  0,  0); }
 
    virtual float   GetKeyIn(int32 KeyIndex) { return 0.f; }
 
    virtual float   GetKeyOut(int32 SubIndex, int32 KeyIndex) { return 0.f; }
 
    virtual FColor  GetKeyColor(int32 SubIndex, int32 KeyIndex, const FColor& CurveColor) { return CurveColor; }
 
    virtual float   EvalSub(int32 SubIndex, float InVal) { return 0.f; }
 
    virtual EInterpCurveMode    GetKeyInterpMode(int32 KeyIndex) const { return CIM_Linear; }
 
    virtual void    GetTangents(int32 SubIndex, int32 KeyIndex, float& ArriveTangent, float& LeaveTangent) const { ArriveTangent=0.f; LeaveTangent=0.f; }
 
    virtual void    GetInRange(float& MinIn, float& MaxIn) const { MinIn=0.f; MaxIn=0.f; }
 
    virtual void    GetOutRange(float& MinOut, float& MaxOut) const { MinOut=0.f; MaxOut=0.f; }
 
    virtual int32       CreateNewKey(float KeyIn) { return INDEX_NONE; }
 
    virtual void    DeleteKey(int32 KeyIndex) {}
 
    virtual int32       SetKeyIn(int32 KeyIndex, float NewInVal) { return KeyIndex; }
 
    virtual void    SetKeyOut(int32 SubIndex, int32 KeyIndex, float NewOutVal) {}
 
    virtual void    SetKeyInterpMode(int32 KeyIndex, EInterpCurveMode NewMode) {}
 
 
    virtual void    SetTangents(int32 SubIndex, int32 KeyIndex, float ArriveTangent, float LeaveTangent) {}
};