LayoutGeometry.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Layout/SlateRect.h"
#include "Rendering/SlateLayoutTransform.h"
#include "Types/SlateVector2.h"
 
class FLayoutGeometry
{
public:
    FLayoutGeometry()
        : LocalSize(1.0f, 1.0f)
    {
    }
 
    explicit FLayoutGeometry(const FSlateLayoutTransform& InLocalToParent, const UE::Slate::FDeprecateVector2DParameter& SizeInLocalSpace)
        : LocalToParent(InLocalToParent)
        , LocalSize(FVector2f(SizeInLocalSpace))
    {
    }
 
    const FSlateLayoutTransform& GetLocalToParentTransform() const 
    { 
        return LocalToParent; 
    }
 
    UE::Slate::FDeprecateVector2DResult GetSizeInLocalSpace() const
    {
        return UE::Slate::FDeprecateVector2DResult(LocalSize);
    }
 
    UE::Slate::FDeprecateVector2DResult GetSizeInParentSpace() const
    {
        return UE::Slate::FDeprecateVector2DResult(TransformVector(LocalToParent, LocalSize));
    }
 
    UE::Slate::FDeprecateVector2DResult GetOffsetInParentSpace() const
    {
        return UE::Slate::FDeprecateVector2DResult(LocalToParent.GetTranslation());
    }
 
    FSlateRect GetRectInLocalSpace() const
    {
        return FSlateRect(FVector2f(0.0f, 0.0f), LocalSize);
    }
 
    FSlateRect GetRectInParentSpace() const
    {
        return TransformRect(LocalToParent, GetRectInLocalSpace());
    }
 
private:
    FSlateLayoutTransform LocalToParent;
    FVector2f LocalSize;
};