Files
UnrealEngine/Engine/Source/Editor/BlueprintGraph/Classes/K2Node_StructOperation.h
2025-05-18 13:04:45 +08:00

83 lines
2.9 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "BlueprintActionFilter.h"
#include "Containers/Array.h"
#include "Containers/UnrealString.h"
#include "CoreMinimal.h"
#include "Delegates/Delegate.h"
#include "EdGraph/EdGraphNode.h"
#include "HAL/Platform.h"
#include "K2Node.h"
#include "K2Node_Variable.h"
#include "UObject/Class.h"
#include "UObject/NameTypes.h"
#include "UObject/ObjectMacros.h"
#include "UObject/ObjectPtr.h"
#include "UObject/UObjectGlobals.h"
#include "UObject/UnrealType.h"
#include "K2Node_StructOperation.generated.h"
class FBlueprintActionDatabaseRegistrar;
class UEdGraphPin;
class UObject;
UCLASS(MinimalAPI, abstract)
class UK2Node_StructOperation : public UK2Node_Variable
{
GENERATED_UCLASS_BODY()
/** Class that this variable is defined in. */
UPROPERTY()
TObjectPtr<UScriptStruct> StructType;
//~ Begin UEdGraphNode Interface
virtual FString GetPinMetaData(FName InPinName, FName InKey) override;
virtual bool HasExternalDependencies(TArray<class UStruct*>* OptionalOutput = nullptr) const override;
//~ End UEdGraphNode Interface
//~ Begin UK2Node Interface
//virtual bool DrawNodeAsVariable() const override { return true; }
virtual bool ShouldShowNodeProperties() const override { return true; }
virtual void ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const override;
virtual FString GetFindReferenceSearchString_Impl(EGetFindReferenceSearchStringFlags InFlags) const override;
virtual bool IsActionFilteredOut(class FBlueprintActionFilter const& Filter) override;
//~ End UK2Node Interface
protected:
// Updater for subclasses that allow hiding pins
struct FStructOperationOptionalPinManager : public FOptionalPinManager
{
//~ Begin FOptionalPinsUpdater Interface
virtual void GetRecordDefaults(FProperty* TestProperty, FOptionalPinFromProperty& Record) const override
{
Record.bCanToggleVisibility = true;
Record.bShowPin = true;
if (TestProperty)
{
Record.bShowPin = !TestProperty->HasMetaData(TEXT("PinHiddenByDefault"));
if (Record.bShowPin)
{
if (UStruct* OwnerStruct = TestProperty->GetOwnerStruct())
{
Record.bShowPin = !OwnerStruct->HasMetaData(TEXT("HiddenByDefault"));
}
}
}
}
virtual void CustomizePinData(UEdGraphPin* Pin, FName SourcePropertyName, int32 ArrayIndex, FProperty* Property) const override;
// End of FOptionalPinsUpdater interfac
};
bool DoRenamedPinsMatch(const UEdGraphPin* NewPin, const UEdGraphPin* OldPin, bool bStructInVariablesOut) const;
/** Utility function to set up menu actions to set the struct type and promote category */
DECLARE_DELEGATE_RetVal_TwoParams(bool, FMakeStructSpawnerAllowedDelegate, const UScriptStruct*, bool);
void SetupMenuActions(FBlueprintActionDatabaseRegistrar& ActionRegistrar, const FMakeStructSpawnerAllowedDelegate& AllowedDelegate, EEdGraphPinDirection PinDirectionToPromote) const;
};