Files
UnrealEngineUWP/Engine/Source/Editor/BlueprintGraph/Private/K2Node_FunctionTerminator.cpp

65 lines
2.0 KiB
C++

// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
#include "BlueprintGraphPrivatePCH.h"
#include "K2Node_FunctionTerminator.h"
#include "GraphEditorSettings.h"
#define LOCTEXT_NAMESPACE "K2Node"
UK2Node_FunctionTerminator::UK2Node_FunctionTerminator(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
}
FLinearColor UK2Node_FunctionTerminator::GetNodeTitleColor() const
{
return GetDefault<UGraphEditorSettings>()->FunctionTerminatorNodeTitleColor;
}
FString UK2Node_FunctionTerminator::CreateUniquePinName(FString InSourcePinName) const
{
const UFunction* FoundFunction = FFunctionFromNodeHelper::FunctionFromNode(this);
FString ResultName = InSourcePinName;
int UniqueNum = 0;
// Prevent the unique name from being the same as another of the UFunction's properties
while(FindPin(ResultName) || FindField<const UProperty>(FoundFunction, *ResultName) != NULL)
{
ResultName = FString::Printf(TEXT("%s%d"), *InSourcePinName, ++UniqueNum);
}
return ResultName;
}
bool UK2Node_FunctionTerminator::CanCreateUserDefinedPin(const FEdGraphPinType& InPinType, EEdGraphPinDirection InDesiredDirection, FText& OutErrorMessage)
{
const bool bIsEditable = IsEditable();
// Make sure that if this is an exec node we are allowed one.
const UEdGraphSchema_K2* Schema = GetDefault<UEdGraphSchema_K2>();
if (bIsEditable && InPinType.PinCategory == Schema->PC_Exec && !CanModifyExecutionWires())
{
OutErrorMessage = LOCTEXT("MultipleExecPinError", "Cannot support more exec pins!");
return false;
}
return bIsEditable;
}
bool UK2Node_FunctionTerminator::HasExternalDependencies(TArray<class UStruct*>* OptionalOutput) const
{
const UBlueprint* SourceBlueprint = GetBlueprint();
UClass* SourceClass = *SignatureClass;
const bool bResult = (SourceClass != NULL) && (SourceClass->ClassGeneratedBy != SourceBlueprint);
if (bResult && OptionalOutput)
{
OptionalOutput->AddUnique(SourceClass);
}
const bool bSuperResult = Super::HasExternalDependencies(OptionalOutput);
return bSuperResult || bResult;
}
#undef LOCTEXT_NAMESPACE