145 lines
5.2 KiB
C++
145 lines
5.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/Array.h"
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#include "CoreMinimal.h"
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#include "EdGraph/EdGraphNode.h"
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#include "EdGraph/EdGraphPin.h"
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#include "HAL/Platform.h"
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#include "Internationalization/Text.h"
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#include "K2Node.h"
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#include "K2Node_AddPinInterface.h"
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#include "KismetCompilerMisc.h"
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#include "NodeDependingOnEnumInterface.h"
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#include "Textures/SlateIcon.h"
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#include "UObject/Class.h"
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#include "UObject/ObjectMacros.h"
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#include "UObject/ObjectPtr.h"
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#include "UObject/UObjectGlobals.h"
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#include "K2Node_Select.generated.h"
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class FBlueprintActionDatabaseRegistrar;
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class FName;
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class FString;
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class UEdGraph;
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class UObject;
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struct FLinearColor;
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UCLASS(MinimalAPI, meta=(Keywords = "Ternary Select"))
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class UK2Node_Select : public UK2Node, public INodeDependingOnEnumInterface, public IK2Node_AddPinInterface
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{
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GENERATED_UCLASS_BODY()
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private:
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/** The number of selectable options this node currently has */
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UPROPERTY()
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int32 NumOptionPins;
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/** The pin type of the index pin */
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UPROPERTY()
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FEdGraphPinType IndexPinType;
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/** Name of the enum being switched on */
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UPROPERTY()
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TObjectPtr<UEnum> Enum;
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/** List of the current entries in the enum (Pin Names) */
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UPROPERTY()
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TArray<FName> EnumEntries;
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/** List of the current entries in the enum (Pin Friendly Names) */
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UPROPERTY(Transient)
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TArray<FText> EnumEntryFriendlyNames;
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/** Whether we need to reconstruct the node after the pins have changed */
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UPROPERTY(Transient)
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uint8 bReconstructNode:1;
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uint8 bReconstructForPinTypeChange:1;
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/**
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* Respond to a change to the PinType for a selected pin
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* @param Pin The pin that is changing type
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*/
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void OnPinTypeChanged(UEdGraphPin* Pin);
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public:
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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 NodeConnectionListChanged() override;
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virtual void PinTypeChanged(UEdGraphPin* Pin) override;
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virtual void AutowireNewNode(UEdGraphPin* FromPin) override;
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virtual void PostPasteNode() override;
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virtual FSlateIcon GetIconAndTint(FLinearColor& OutColor) const override;
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//~ End UEdGraphNode Interface
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//~ Begin UK2Node Interface
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virtual ERedirectType DoPinsMatchForReconstruction(const UEdGraphPin* NewPin, int32 NewPinIndex, const UEdGraphPin* OldPin, int32 OldPinIndex) const override;
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virtual void ReallocatePinsDuringReconstruction(TArray<UEdGraphPin*>& OldPins) override;
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virtual void PostReconstructNode() override;
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virtual bool IsNodeSafeToIgnore() const override { return true; }
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virtual bool IsNodePure() const override { return true; }
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virtual void NotifyPinConnectionListChanged(UEdGraphPin* Pin) override;
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virtual class FNodeHandlingFunctor* CreateNodeHandler(class FKismetCompilerContext& CompilerContext) const override;
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virtual bool IsConnectionDisallowed(const UEdGraphPin* MyPin, const UEdGraphPin* OtherPin, FString& OutReason) const override;
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virtual void GetMenuActions(FBlueprintActionDatabaseRegistrar& ActionRegistrar) const override;
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virtual FText GetMenuCategory() const override;
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virtual int32 GetNodeRefreshPriority() const override { return EBaseNodeRefreshPriority::Low_UsesDependentWildcard; }
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virtual void ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph) override;
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//~ End UK2Node Interface
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// INodeDependingOnEnumInterface
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virtual class UEnum* GetEnum() const override { return Enum; }
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virtual void ReloadEnum(class UEnum* InEnum) override;
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virtual bool ShouldBeReconstructedAfterEnumChanged() const override { return true; }
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// End of INodeDependingOnEnumInterface
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//~ IK2Node_AddPinInterface
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virtual bool CanAddPin() const override;
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virtual void AddInputPin() override;
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//~ End IK2Node_AddPinInterface
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/** Get the return value pin */
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BLUEPRINTGRAPH_API UEdGraphPin* GetReturnValuePin() const;
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/** Get the condition pin */
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BLUEPRINTGRAPH_API virtual UEdGraphPin* GetIndexPin() const;
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/** Returns a list of pins that represent the selectable options */
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BLUEPRINTGRAPH_API virtual void GetOptionPins(TArray<UEdGraphPin*>& OptionPins) const;
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/** Gets the name and class of the EqualEqual_IntInt function */
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BLUEPRINTGRAPH_API void GetConditionalFunction(FName& FunctionName, UClass** FunctionClass);
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/** Gets the name and class of the PrintString function */
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BLUEPRINTGRAPH_API static void GetPrintStringFunction(FName& FunctionName, UClass** FunctionClass);
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/** Removes the last option pin from the node */
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BLUEPRINTGRAPH_API void RemoveOptionPinToNode();
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/** Return whether an option pin can be removed to the node */
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BLUEPRINTGRAPH_API virtual bool CanRemoveOptionPinToNode() const;
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/**
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* Notification from the editor that the user wants to change the PinType on a selected pin
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*
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* @param Pin The pin the user wants to change the type for
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*/
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BLUEPRINTGRAPH_API void ChangePinType(UEdGraphPin* Pin);
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/**
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* Whether the user can change the pintype on a selected pin
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*
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* @param Pin The pin in question
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*/
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BLUEPRINTGRAPH_API bool CanChangePinType(UEdGraphPin* Pin) const;
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// Bind the options to a named enum
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virtual void SetEnum(UEnum* InEnum, bool bForceRegenerate = false);
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private:
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UEdGraphPin* GetIndexPinUnchecked() const;
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};
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