GlobalMergeLegacySupportUtil.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Math/MathFwd.h" // FTransform, FIntPoint
#include "Misc/CoreMiscDefines.h" // PURE_VIRTUAL
#include "UObject/Interface.h"
 
#include "GlobalMergeLegacySupportUtil.generated.h"
 
// Note: this file is likely to be removed once global merge is fully phased out.
 
class UTextureRenderTarget2D;
struct FLandscapeBrushParameters;
 
class UE_DEPRECATED(5.7, "Global merge has been deprecated so this is no longer used. There's no good way of deprecating UInterfaces ATM, hence this forward-declaration") ULandscapeBrushRenderCallAdapter_GlobalMergeLegacySupport {};
class UE_DEPRECATED(5.7, "Global merge has been deprecated so this is no longer used. There's no good way of deprecating UInterfaces ATM, hence this forward-declaration") ILandscapeBrushRenderCallAdapter_GlobalMergeLegacySupport {};
 
// UObject for the UInterface
UINTERFACE(MinimalAPI)
class ULandscapeBrushRenderCallAdapter_GlobalMergeLegacySupport_DEPRECATED : public UInterface
{
    GENERATED_BODY()
};
 
class ILandscapeBrushRenderCallAdapter_GlobalMergeLegacySupport_DEPRECATED
{
    GENERATED_BODY()
 
#if WITH_EDITOR
public:
    UTextureRenderTarget2D* RenderAsBlueprintBrush(const FLandscapeBrushParameters& InParameters, const FTransform& LandscapeTransform) { return nullptr; }
 
    // Called in the same places as the equivalent methods on FLandscapeLayerBrush.
    virtual bool AffectsHeightmapAsBlueprintBrush() const { return false; }
    virtual bool AffectsWeightmapLayerAsBlueprintBrush(const FName& InLayerName) const { return false; }
    virtual bool AffectsVisibilityLayerAsBlueprintBrush() const { return false; }
 
protected:
    
    // Overridable, equivalent to Initialize_Native on a blueprint brush actor
    virtual void InitializeAsBlueprintBrush(const FTransform& InLandscapeTransform,
        const FIntPoint& InLandscapeSize,
        const FIntPoint& InLandscapeRenderTargetSize) {}
 
    // Overridable, equivalent to RenderLayer_Native on a blueprint brush actor.
    virtual UTextureRenderTarget2D* RenderLayerAsBlueprintBrush(const FLandscapeBrushParameters& InParameters)
        PURE_VIRTUAL(ILandscapeBrushRenderCallAdapter_GlobalMergeLegacySupport_DEPRECATED::InitializeAsBlueprintBrush, return nullptr; );
 
    // Used in RenderAsBlueprintBrush to cache things the same way that blueprint brushes do
    FTransform CurrentRenderAreaWorldTransform;
    FIntPoint CurrentRenderAreaSize = FIntPoint(ForceInitToZero);
    FIntPoint CurrentRenderTargetSize = FIntPoint(ForceInitToZero);
#endif
};