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72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "UObject/ObjectMacros.h"
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#include "UObject/UnrealType.h"
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#include "Engine/Blueprint.h"
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#include "EdGraph/EdGraphNodeUtils.h"
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#include "K2Node_Variable.h"
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#include "K2Node_VariableGet.generated.h"
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class UEdGraph;
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UCLASS()
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class BLUEPRINTGRAPH_API UK2Node_VariableGet : public UK2Node_Variable
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{
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GENERATED_UCLASS_BODY()
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//~ Begin UObject Interface
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virtual void Serialize(FArchive& Ar) override;
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//~ End UObject Interface
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//~ Begin UEdGraphNode Interface
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virtual void AllocateDefaultPins() override;
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virtual FText GetTooltipText() const override;
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virtual FText GetNodeTitle(ENodeTitleType::Type TitleType) const override;
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virtual void GetNodeContextMenuActions(class UToolMenu* Menu, class UGraphNodeContextMenuContext* Context) const override;
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virtual bool IncludeParentNodeContextMenu() const override { return true; }
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virtual void ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const override;
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//~ End UEdGraphNode Interface
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//~ Begin K2Node Interface
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virtual bool IsNodePure() const override { return bIsPureGet; }
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virtual void ReallocatePinsDuringReconstruction(TArray<UEdGraphPin*>& OldPins) override;
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virtual bool ShouldShowNodeProperties() const override { return true; }
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virtual class FNodeHandlingFunctor* CreateNodeHandler(class FKismetCompilerContext& CompilerContext) const override;
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virtual void ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph) override;
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//~ End K2Node Interface
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static FText GetPropertyTooltip(UProperty const* VariableProperty);
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static FText GetBlueprintVarTooltip(FBPVariableDescription const& VarDesc);
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/**
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* Will change the node's purity, and reallocate pins accordingly (adding/
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* removing exec pins).
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*
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* @param bNewPurity The new value for bIsPureCast.
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*/
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void SetPurity(bool bNewPurity);
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private:
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/** Checks if the pin type is valid to be a non-pure node */
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static bool IsValidTypeForNonPure(const FEdGraphPinType& InPinType);
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/** Adds pins required for the node to function in a non-pure manner */
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void CreateNonPurePins(TArray<UEdGraphPin*>* InOldPinsPtr);
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/** Flips the node's purity (adding/removing exec pins as needed). */
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void TogglePurity();
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/** Constructing FText strings can be costly, so we cache the node's title/tooltip */
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FNodeTextCache CachedTooltip;
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FNodeTextCache CachedNodeTitle;
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/** TRUE if the node should function as a pure node, without exec pins */
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UPROPERTY()
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bool bIsPureGet;
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};
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