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a3a1c99681
* Ran IWYU on all cpp files. Re-running IWYU will cause a few breaking changes so will handle that in a separate change #preflight 63a1fa7c2540a78d27beadb5 #rb none [CL 23551816 by henrik karlsson in ue5-main branch]
100 lines
3.4 KiB
C++
100 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Materials/MaterialInstanceActor.h"
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#include "Async/TaskGraphInterfaces.h"
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#include "Components/BillboardComponent.h"
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#include "Engine/Texture2D.h"
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#include "Misc/MessageDialog.h"
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#include "UObject/ConstructorHelpers.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(MaterialInstanceActor)
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/**
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* Construct a list of static actor names.
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* @param OutString - The string containing the list of actor's names.
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* @param Actors - The list of actors to check.
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*/
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static void GetListOfStaticActors(FString& OutString, const TArray<AActor*>& Actors)
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{
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for (int32 ActorIndex = 0; ActorIndex < Actors.Num(); ++ActorIndex)
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{
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AActor* Actor = Actors[ActorIndex];
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if (Actor && Actor->IsRootComponentStatic())
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{
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OutString += FString::Printf(TEXT("\n%s"), *Actor->GetFullName());
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}
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}
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}
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AMaterialInstanceActor::AMaterialInstanceActor(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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{
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USceneComponent* SceneComponent = CreateDefaultSubobject<USceneComponent>(TEXT("SceneComp"));
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RootComponent = SceneComponent;
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#if WITH_EDITORONLY_DATA
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SpriteComponent = CreateEditorOnlyDefaultSubobject<UBillboardComponent>(TEXT("Sprite"));
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if (!IsRunningCommandlet() && (SpriteComponent != NULL))
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{
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// Structure to hold one-time initialization
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struct FConstructorStatics
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{
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ConstructorHelpers::FObjectFinderOptional<UTexture2D> MaterialInstanceSpriteObject;
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FName ID_Materials;
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FText NAME_Materials;
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FConstructorStatics()
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: MaterialInstanceSpriteObject(TEXT("/Engine/EditorResources/MatInstActSprite"))
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, ID_Materials(TEXT("Materials"))
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, NAME_Materials(NSLOCTEXT("SpriteCategory", "Materials", "Materials"))
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{
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}
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};
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static FConstructorStatics ConstructorStatics;
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SpriteComponent->Sprite = ConstructorStatics.MaterialInstanceSpriteObject.Get();
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SpriteComponent->SpriteInfo.Category = ConstructorStatics.ID_Materials;
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SpriteComponent->SpriteInfo.DisplayName = ConstructorStatics.NAME_Materials;
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SpriteComponent->SetRelativeScale3D(FVector(0.5f, 0.5f, 0.5f));
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SpriteComponent->SetupAttachment(SceneComponent);
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SpriteComponent->bIsScreenSizeScaled = true;
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}
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#endif // WITH_EDITORONLY_DATA
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}
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void AMaterialInstanceActor::PostLoad()
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{
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Super::PostLoad();
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// Warn the user if any static actors exist in the list.
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FString StaticActors;
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GetListOfStaticActors(StaticActors, TargetActors);
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if (StaticActors.Len() > 0)
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{
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UE_LOG(LogTemp, Log, TEXT("Static actors may not be referenced by a material instance actor:%s"), *StaticActors);
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}
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}
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#if WITH_EDITOR
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void AMaterialInstanceActor::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
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{
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Super::PostEditChangeProperty(PropertyChangedEvent);
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// Warn the user if any static actors exist in the list.
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FString StaticActors;
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GetListOfStaticActors(StaticActors, TargetActors);
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if (StaticActors.Len() > 0)
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{
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const FText WarningMsg = FText::Format( NSLOCTEXT("Engine", "MaterialInstanceActor_NonStaticActorRef", "Static actors may not be referenced by a material instance actor:{0}"), FText::FromString( StaticActors ) );
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UE_LOG(LogTemp, Log, TEXT("%s"), *WarningMsg.ToString());
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FMessageDialog::Open( EAppMsgType::Ok, WarningMsg);
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}
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}
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#endif // WITH_EDITOR
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#if WITH_EDITORONLY_DATA
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/** Returns SpriteComponent subobject **/
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UBillboardComponent* AMaterialInstanceActor::GetSpriteComponent() const { return SpriteComponent; }
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#endif
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