Files
UnrealEngine/Engine/Source/Editor/BlueprintGraph/Classes/K2Node_Knot.h
2025-05-18 13:04:45 +08:00

74 lines
2.5 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Containers/Array.h"
#include "Containers/UnrealString.h"
#include "CoreMinimal.h"
#include "EdGraph/EdGraphNode.h"
#include "HAL/Platform.h"
#include "Internationalization/Text.h"
#include "K2Node.h"
#include "Templates/SharedPointer.h"
#include "UObject/ObjectMacros.h"
#include "UObject/UObjectGlobals.h"
#include "K2Node_Knot.generated.h"
class FBlueprintActionDatabaseRegistrar;
class INameValidatorInterface;
class UEdGraph;
class UEdGraphPin;
class UObject;
UCLASS(MinimalAPI)
class UK2Node_Knot : public UK2Node
{
GENERATED_UCLASS_BODY()
public:
// UEdGraphNode interface
virtual void AllocateDefaultPins() override;
virtual FText GetTooltipText() const override;
virtual FText GetNodeTitle(ENodeTitleType::Type TitleType) const override;
virtual bool ShouldOverridePinNames() const override;
virtual FText GetPinNameOverride(const UEdGraphPin& Pin) const override;
virtual void OnRenameNode(const FString& NewName) override;
virtual TSharedPtr<class INameValidatorInterface> MakeNameValidator() const override;
virtual bool CanSplitPin(const UEdGraphPin* Pin) const override;
virtual bool IsCompilerRelevant() const override { return false; }
virtual UEdGraphPin* GetPassThroughPin(const UEdGraphPin* FromPin) const override;
virtual bool ShouldDrawNodeAsControlPointOnly(int32& OutInputPinIndex, int32& OutOutputPinIndex) const override { OutInputPinIndex = 0; OutOutputPinIndex = 1; return true; }
// End of UEdGraphNode interface
// UK2Node interface
virtual bool IsNodeSafeToIgnore() const override;
virtual void ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph) override;
virtual void NotifyPinConnectionListChanged(UEdGraphPin* Pin) override;
virtual void PostReconstructNode() override;
virtual int32 GetNodeRefreshPriority() const override { return EBaseNodeRefreshPriority::Low_UsesDependentWildcard; }
virtual void GetMenuActions(FBlueprintActionDatabaseRegistrar& ActionRegistrar) const override;
virtual bool IsNodePure() const override { return true; }
// End of UK2Node interface
UEdGraphPin* GetInputPin() const
{
return Pins[0];
}
UEdGraphPin* GetOutputPin() const
{
return Pins[1];
}
void PropagatePinType();
BLUEPRINTGRAPH_API UEdGraphNode* GetExecTerminal() const;
private:
void PropagatePinTypeFromDirection(bool bFromInput);
/** Recursion guard boolean to prevent PropagatePinType from infinitely recursing if you manage to create a loop of knots */
bool bRecursionGuard;
};