Overscroll.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "HAL/Platform.h"
#include "Layout/Geometry.h"
 
struct FGeometry;
 
enum class EAllowOverscroll : uint8
{
    Yes,
    No
};
 
struct FOverscroll
{
public:
 
    static SLATE_API float Looseness;
    static SLATE_API float OvershootLooseMax;
    static SLATE_API float OvershootBounceRate;
 
    SLATE_API FOverscroll();
 
    SLATE_API float ScrollBy(const FGeometry& AllottedGeometry, float LocalDeltaScroll);
 
    SLATE_API float GetOverscroll(const FGeometry& AllottedGeometry) const;
 
    SLATE_API void UpdateOverscroll(float InDeltaTime);
 
    SLATE_API bool ShouldApplyOverscroll(const bool bIsAtStartOfList, const bool bIsAtEndOfList, const float ScrollDelta) const;
    
    SLATE_API void ResetOverscroll();
private:
    float OverscrollAmount;
};