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68 lines
2.8 KiB
C++
68 lines
2.8 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 "K2Node.h"
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#include "K2Node_GetArrayItem.generated.h"
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class FBlueprintActionDatabaseRegistrar;
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class UEdGraphPin;
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struct FEdGraphPinType;
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UCLASS(MinimalAPI, Category = "Utilities|Array", meta=(Keywords = "array"))
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class UK2Node_GetArrayItem : public UK2Node
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{
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GENERATED_UCLASS_BODY()
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public:
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// UEdGraphNode interface
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virtual bool IsNodePure() const override { return true; }
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virtual void AllocateDefaultPins() override;
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virtual void PostReconstructNode() override;
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virtual FText GetNodeTitle(ENodeTitleType::Type TitleType) const override;
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virtual FText GetTooltipText() const override;
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virtual class FNodeHandlingFunctor* CreateNodeHandler(class FKismetCompilerContext& CompilerContext) const override;
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virtual TSharedPtr<SWidget> CreateNodeImage() const override;
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virtual void GetContextMenuActions(const FGraphNodeContextMenuBuilder& Context) const override;
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virtual FSlateIcon GetIconAndTint(FLinearColor& OutColor) const override;
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// End of UEdGraphNode interface
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// UK2Node interface
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virtual bool ShouldDrawCompact() const { return true; }
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virtual void NotifyPinConnectionListChanged(UEdGraphPin* Pin) override;
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virtual void GetMenuActions(FBlueprintActionDatabaseRegistrar& ActionRegistrar) const override;
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virtual FBlueprintNodeSignature GetSignature() const override;
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virtual int32 GetNodeRefreshPriority() const override { return EBaseNodeRefreshPriority::Low_UsesDependentWildcard; }
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virtual FText GetMenuCategory() const override;
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virtual void ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph) override;
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virtual bool IsActionFilteredOut(class FBlueprintActionFilter const& Filter) override;
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virtual bool IsConnectionDisallowed(const UEdGraphPin* MyPin, const UEdGraphPin* OtherPin, FString& OutReason) const override;
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// End of UK2Node interface
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/** Helper function to return the array pin */
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UEdGraphPin* GetTargetArrayPin() const { return Pins[0]; }
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/** Helper function to return the index pin */
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UEdGraphPin* GetIndexPin() const { return Pins[1]; }
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/** Helper function to return the result pin */
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UEdGraphPin* GetResultPin() const { return Pins[2]; }
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/** Sets weather we want the array item returned as a reference or by value (as a copy) */
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void SetDesiredReturnType(bool bAsReference);
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private:
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/** Flips the node's desired 'ReturnByRef' setting & refreshes the node if necessary */
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void ToggleReturnPin();
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/** Propagates pin type to the Array pin and the Result pin */
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void PropagatePinType(FEdGraphPinType& InType);
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/** Determines if this node wants to return by ref, and if it is able to do so */
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bool IsSetToReturnRef() const;
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UPROPERTY()
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bool bReturnByRefDesired;
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};
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