MaterialExpressionComposite.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Materials/MaterialExpression.h"
#include "Materials/MaterialExpressionReroute.h"
#include "Materials/MaterialExpressionPinBase.h"
#include "MaterialExpressionComposite.generated.h"
 
UCLASS(MinimalAPI)
class UMaterialExpressionComposite : public UMaterialExpression
{
    GENERATED_UCLASS_BODY()
    
    UPROPERTY(EditAnywhere, Category= MaterialExpressionComposite)
    FString SubgraphName;
 
    UPROPERTY()
    TObjectPtr<UMaterialExpressionPinBase> InputExpressions;
 
    UPROPERTY()
    TObjectPtr<UMaterialExpressionPinBase> OutputExpressions;
 
#if WITH_EDITOR
    virtual TArray<UMaterialExpressionReroute*> GetCurrentReroutes() const;
 
    //~ Begin UObject Interface.
    virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
    //~ End UObject Interface.
 
    //~ Begin UMaterialExpression Interface
    virtual bool CanRenameNode() const override { return true; }
    virtual FString GetEditableName() const;
    virtual void SetEditableName(const FString& NewName);
 
    virtual TArray<FExpressionOutput>& GetOutputs() override;
    virtual TArrayView<FExpressionInput*> GetInputsView() override;
    virtual FExpressionInput* GetInput(int32 InputIndex) override;
    virtual FName GetInputName(int32 InputIndex) const override;
    virtual EMaterialValueType GetInputValueType(int32 InputIndex) override;
    virtual EMaterialValueType GetOutputValueType(int32 OutputIndex) override;
    virtual bool IsExpressionConnected(FExpressionInput* Input, int32 OutputIndex) override;
    virtual void ConnectExpression(FExpressionInput* Input, int32 OutputIndex) override;
 
    virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    //~ End UMaterialExpression Interface
 
    //~ Begin UObject Interface.
    virtual bool Modify(bool bAlwaysMarkDirty = true) override;
    //~ End UObject Interface.
 
    bool ModifyCompositeOnly(bool bAlwaysMarkDirty = true);
#endif // WITH_EDITOR
};