SlateVectorArtData.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "UObject/Object.h"
#include "SlateVectorArtData.generated.h"
 
class UMaterialInstanceDynamic;
class UMaterialInterface;
class UStaticMesh;
 
USTRUCT()
struct FSlateMeshVertex
{
    GENERATED_USTRUCT_BODY()
 
    static const int32 MaxNumUVs = 6;
 
    FSlateMeshVertex()
        :
        Position(FVector2f::ZeroVector)
        , Color(ForceInitToZero)
        , UV0(FVector2f::ZeroVector)
        , UV1(FVector2f::ZeroVector)
        , UV2(FVector2f::ZeroVector)
        , UV3(FVector2f::ZeroVector)
        , UV4(FVector2f::ZeroVector)
        , UV5(FVector2f::ZeroVector)
    {
    }
 
    FSlateMeshVertex(
          FVector2f InPos
        , FColor InColor
        , FVector2f InUV0
        , FVector2f InUV1
        , FVector2f InUV2
        , FVector2f InUV3
        , FVector2f InUV4
        , FVector2f InUV5
        )
        : Position(InPos)
        , Color(InColor)
        , UV0(InUV0)
        , UV1(InUV1)
        , UV2(InUV2)
        , UV3(InUV3)
        , UV4(InUV4)
        , UV5(InUV5)    
    {
    }
 
    UPROPERTY()
    FVector2f Position;
 
    UPROPERTY()
    FColor Color;
 
    UPROPERTY()
    FVector2f UV0;
 
    UPROPERTY()
    FVector2f UV1;
 
    UPROPERTY()
    FVector2f UV2;
 
    UPROPERTY()
    FVector2f UV3;
 
    UPROPERTY()
    FVector2f UV4;
 
    UPROPERTY()
    FVector2f UV5;
};
 
UCLASS(MinimalAPI)
class USlateVectorArtData : public UObject
{
    GENERATED_UCLASS_BODY()
 
public:
    UMG_API const TArray<FSlateMeshVertex>& GetVertexData() const;
    
    UMG_API const TArray<uint32>& GetIndexData() const;
    
    UMG_API UMaterialInterface* GetMaterial() const;
    
    UMG_API UMaterialInstanceDynamic* ConvertToMaterialInstanceDynamic();
 
    UMG_API void EnsureValidData();
 
    UMG_API FVector2D GetDesiredSize() const;
 
    UMG_API FVector2D GetExtentMin() const;
 
    UMG_API FVector2D GetExtentMax() const;
 
private:
    // ~ UObject Interface
    virtual void PreSave(FObjectPreSaveContext ObjectSaveContext) override;
    // ~ UObject Interface
 
#if WITH_EDITORONLY_DATA
    void InitFromStaticMesh(const UStaticMesh& InSourceMesh);
 
    UPROPERTY(EditAnywhere, Category="Vector Art" )
    TObjectPtr<UStaticMesh> MeshAsset;
 
    UPROPERTY(Transient)
    TObjectPtr<UMaterialInterface> SourceMaterial;
#endif
 
    UPROPERTY()
    TArray<FSlateMeshVertex> VertexData;
 
    UPROPERTY()
    TArray<uint32> IndexData;
 
    UPROPERTY()
    TObjectPtr<UMaterialInterface> Material;
 
    UPROPERTY()
    FVector2D ExtentMin;
 
    UPROPERTY()
    FVector2D ExtentMax;
};