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99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "MaterialGraphNode.generated.h"
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UCLASS(MinimalAPI)
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class UMaterialGraphNode : public UMaterialGraphNode_Base
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{
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GENERATED_UCLASS_BODY()
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/** Material Expression this node is representing */
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UPROPERTY()
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class UMaterialExpression* MaterialExpression;
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/** Set to true when Expression Preview compiles, so we can update SGraphNode */
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bool bPreviewNeedsUpdate;
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/** Set to true if this expression causes an error in the material */
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bool bIsErrorExpression;
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/** Set to true if this expression is the current search result */
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bool bIsCurrentSearchResult;
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/** Set to true if this expression is currently being previewed */
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bool bIsPreviewExpression;
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/** Checks if Material Editor is in realtime mode, so we update SGraphNode every frame */
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FRealtimeStateGetter RealtimeDelegate;
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/** Marks the Material Editor as dirty so that user prompted to apply change */
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FSetMaterialDirty MaterialDirtyDelegate;
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public:
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/** Fix up the node's owner after being copied */
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UNREALED_API void PostCopyNode();
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/** Get the expression preview for this node */
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UNREALED_API FMaterialRenderProxy* GetExpressionPreview();
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/** Recreate this node's pins and relink the Graph from the Material */
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UNREALED_API void RecreateAndLinkNode();
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/** Get the Material Expression output index from an output pin */
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int32 GetOutputIndex(const UEdGraphPin* OutputPin);
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/** Get the Material value type of an output pin */
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uint32 GetOutputType(const UEdGraphPin* OutputPin);
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// UObject interface
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virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) OVERRIDE;
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virtual void PostEditImport() OVERRIDE;
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virtual void PostDuplicate(bool bDuplicateForPIE) OVERRIDE;
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// End of UObject interface
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// Begin UEdGraphNode interface.
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virtual bool CanPasteHere(const UEdGraph* TargetGraph, const UEdGraphSchema* Schema) const OVERRIDE;
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virtual FString GetNodeTitle(ENodeTitleType::Type TitleType) const OVERRIDE;
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virtual FLinearColor GetNodeTitleColor() const OVERRIDE;
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virtual FString GetTooltip() const OVERRIDE;
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virtual void PrepareForCopying() OVERRIDE;
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virtual void GetContextMenuActions(const FGraphNodeContextMenuBuilder& Context) const OVERRIDE;
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virtual void PostPlacedNewNode() OVERRIDE;
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virtual void OnRenameNode(const FString& NewName) OVERRIDE;
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virtual void GetPinHoverText(const UEdGraphPin& Pin, FString& HoverTextOut) const OVERRIDE;
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// End UEdGraphNode interface.
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// UMaterialGraphNode_Base interface
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virtual void CreateInputPins() OVERRIDE;
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virtual void CreateOutputPins() OVERRIDE;
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virtual int32 GetInputIndex(const UEdGraphPin* InputPin) const OVERRIDE;
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virtual uint32 GetInputType(const UEdGraphPin* InputPin) const OVERRIDE;
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// End of UMaterialGraphNode_Base interface
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private:
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/** Make sure the MaterialExpression is owned by the Material */
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void ResetMaterialExpressionOwner();
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/** Get the parameter name from the Material Expression */
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FString GetParameterName() const;
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/** Sets the Material Expression's parameter name */
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void SetParameterName(const FString& NewName);
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/** Should expression use the bool pin colour for its title */
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static bool UsesBoolColour(UMaterialExpression* Expression);
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/** Should expression use the float pin colour for its title */
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static bool UsesFloatColour(UMaterialExpression* Expression);
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/** Should expression use the vector pin colour for its title */
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static bool UsesVectorColour(UMaterialExpression* Expression);
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/** Should expression use the object pin colour for its title */
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static bool UsesObjectColour(UMaterialExpression* Expression);
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/** Should expression use the event node colour for its title */
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static bool UsesEventColour(UMaterialExpression* Expression);
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};
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