Files
UnrealEngine/Engine/Source/Editor/BlueprintGraph/Private/K2Node_StructMemberGet.cpp
2025-05-18 13:04:45 +08:00

125 lines
3.8 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "K2Node_StructMemberGet.h"
#include "EdGraph/EdGraphSchema.h"
#include "HAL/Platform.h"
#include "Internationalization/Internationalization.h"
#include "K2Node.h"
#include "Misc/AssertionMacros.h"
#include "StructMemberNodeHandlers.h"
#include "UObject/Class.h"
#include "UObject/ObjectPtr.h"
#include "UObject/UnrealNames.h"
#include "UObject/UnrealType.h"
class FKismetCompilerContext;
//////////////////////////////////////////////////////////////////////////
// UK2Node_StructMemberGet
#define LOCTEXT_NAMESPACE "K2Node"
UK2Node_StructMemberGet::UK2Node_StructMemberGet(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
}
void UK2Node_StructMemberGet::PreEditChange(FProperty* PropertyThatWillChange)
{
Super::PreEditChange(PropertyThatWillChange);
if (PropertyThatWillChange && PropertyThatWillChange->GetFName() == GET_MEMBER_NAME_CHECKED(FOptionalPinFromProperty, bShowPin))
{
FOptionalPinManager::CacheShownPins(ShowPinForProperties, OldShownPins);
}
}
void UK2Node_StructMemberGet::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
const FName PropertyName = (PropertyChangedEvent.Property ? PropertyChangedEvent.Property->GetFName() : NAME_None);
if (PropertyName == GET_MEMBER_NAME_CHECKED(FOptionalPinFromProperty, bShowPin))
{
FOptionalPinManager::EvaluateOldShownPins(ShowPinForProperties, OldShownPins, this);
GetSchema()->ReconstructNode(*this);
}
Super::PostEditChangeProperty(PropertyChangedEvent);
}
void UK2Node_StructMemberGet::AllocateDefaultPins()
{
//@TODO: Create a context pin
// Display any currently visible optional pins
{
FStructOperationOptionalPinManager OptionalPinManager;
OptionalPinManager.RebuildPropertyList(ShowPinForProperties, StructType);
OptionalPinManager.CreateVisiblePins(ShowPinForProperties, StructType, EGPD_Output, this);
}
}
void UK2Node_StructMemberGet::AllocatePinsForSingleMemberGet(FName MemberName)
{
//@TODO: Create a context pin
// Updater for subclasses that allow hiding pins
struct FSingleVariablePinManager : public FOptionalPinManager
{
FName MatchName;
FSingleVariablePinManager(FName InMatchName)
: MatchName(InMatchName)
{
}
// FOptionalPinsUpdater interface
virtual void GetRecordDefaults(FProperty* TestProperty, FOptionalPinFromProperty& Record) const override
{
Record.bCanToggleVisibility = false;
Record.bShowPin = TestProperty->GetFName() == MatchName;
}
// End of FOptionalPinsUpdater interface
};
// Display any currently visible optional pins
{
FSingleVariablePinManager PinManager(MemberName);
PinManager.RebuildPropertyList(ShowPinForProperties, StructType);
PinManager.CreateVisiblePins(ShowPinForProperties, StructType, EGPD_Output, this);
}
}
FText UK2Node_StructMemberGet::GetTooltipText() const
{
if (CachedTooltip.IsOutOfDate(this))
{
FFormatNamedArguments Args;
Args.Add(TEXT("VariableName"), FText::FromString(GetVarNameString()));
// FText::Format() is slow, so we cache this to save on performance
CachedTooltip.SetCachedText(FText::Format(LOCTEXT("K2Node_StructMemberGet_Tooltip", "Get member variables of {VariableName}"), Args), this);
}
return CachedTooltip;
}
FText UK2Node_StructMemberGet::GetNodeTitle(ENodeTitleType::Type TitleType) const
{
if (CachedNodeTitle.IsOutOfDate(this))
{
FFormatNamedArguments Args;
Args.Add(TEXT("VariableName"), FText::FromString(GetVarNameString()));
// FText::Format() is slow, so we cache this to save on performance
CachedNodeTitle.SetCachedText(FText::Format(LOCTEXT("GetMembersInVariable", "Get members in {VariableName}"), Args), this);
}
return CachedNodeTitle;
}
FNodeHandlingFunctor* UK2Node_StructMemberGet::CreateNodeHandler(FKismetCompilerContext& CompilerContext) const
{
return new FKCHandler_StructMemberVariableGet(CompilerContext);
}
#undef LOCTEXT_NAMESPACE