C++ UActorComponent::GetOwner方法代码示例

PyObject *py_ue_bind_key(ue_PyUObject *self, PyObject * args)
{

	ue_py_check(self);

	char *key_name;
	int key;
	PyObject *py_callable;
	if (!PyArg_ParseTuple(args, "siO:bind_key", &key_name, &key, &py_callable))
	{
		return NULL;
	}

	if (!PyCallable_Check(py_callable))
	{
		return PyErr_Format(PyExc_Exception, "object is not a callable");
	}

	UInputComponent *input = nullptr;

	if (self->ue_object->IsA<AActor>())
	{
		input = ((AActor *)self->ue_object)->InputComponent;
	}
	else if (self->ue_object->IsA<UActorComponent>())
	{
		UActorComponent *component = (UActorComponent *)self->ue_object;
		if (!component->GetOwner())
			return PyErr_Format(PyExc_Exception, "component is still not mapped to an Actor");
		input = component->GetOwner()->InputComponent;
	}
	else
	{
		return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
	}

	if (!input)
	{
		return PyErr_Format(PyExc_Exception, "no input manager for this uobject");
	}

	UPythonDelegate *py_delegate = FUnrealEnginePythonHouseKeeper::Get()->NewDelegate(input, py_callable, nullptr);

	FInputKeyBinding input_key_binding(FKey(UTF8_TO_TCHAR(key_name)), (const EInputEvent)key);
	input_key_binding.KeyDelegate.BindDelegate(py_delegate, &UPythonDelegate::PyInputHandler);
	input->KeyBindings.Add(input_key_binding);

	Py_RETURN_NONE;

}

void FBlueprintCompileReinstancer::ReconstructOwnerInstances(TSubclassOf<UActorComponent> ComponentClass)
{
	if (ComponentClass == nullptr)
	{
		return;
	}

	TArray<UObject*> ComponentInstances;
	GetObjectsOfClass(ComponentClass, ComponentInstances, /*bIncludeDerivedClasses =*/false);

	TSet<AActor*> OwnerInstances;
	for (UObject* ComponentObj : ComponentInstances)
	{
	
		UActorComponent* Component = CastChecked<UActorComponent>(ComponentObj);
			
		if (AActor* OwningActor = Component->GetOwner())
		{
			// we don't just rerun construction here, because we could end up 
			// doing it twice for the same actor (if it had multiple components 
			// of this kind), so we put that off as a secondary pass
			OwnerInstances.Add(OwningActor);
		}
	}

	for (AActor* ComponentOwner : OwnerInstances)
	{
		ComponentOwner->RerunConstructionScripts();
	}
}

void FComponentMaterialCategory::OnGetMaterialsForView( IMaterialListBuilder& MaterialList )
{
	const bool bAllowNullEntries = true;

	// Iterate over every material on the actors
	for( FMaterialIterator It( SelectedComponents ); It; ++It )
	{	
		int32 MaterialIndex = It.GetMaterialIndex();

		UActorComponent* CurrentComponent = It.GetComponent();

		if( CurrentComponent )
		{
			UMaterialInterface* Material = It.GetMaterial();

			AActor* Actor = CurrentComponent->GetOwner();

			// Component materials can be replaced if the component supports material overrides
			const bool bCanBeReplaced =
				( CurrentComponent->IsA( UMeshComponent::StaticClass() ) ||
				CurrentComponent->IsA( UTextRenderComponent::StaticClass() ) ||
				CurrentComponent->IsA( ULandscapeComponent::StaticClass() ) );

			// Add the material if we allow null materials to be added or we have a valid material
			if( bAllowNullEntries || Material )
			{
				MaterialList.AddMaterial( MaterialIndex, Material, bCanBeReplaced );
			}
		}
	}
}

UObject* ULevelSequence::GetParentObject(UObject* Object) const
{
	UActorComponent* Component = Cast<UActorComponent>(Object);

	if (Component != nullptr)
	{
		return Component->GetOwner();
	}

	return nullptr;
}

PyObject *py_ue_get_owner(ue_PyUObject *self, PyObject * args)
{

	ue_py_check(self);

	UActorComponent *component = ue_py_check_type<UActorComponent>(self);
	if (!component)
		return PyErr_Format(PyExc_Exception, "uobject is not a component");

	Py_RETURN_UOBJECT(component->GetOwner());
}

void SDetailNameArea::Refresh( const TArray< TWeakObjectPtr<AActor> >& SelectedActors, const TArray< TWeakObjectPtr<UObject> >& SelectedObjects, FDetailsViewArgs::ENameAreaSettings NameAreaSettings  )
{
	// Convert the actor array to base object type

	TArray< TWeakObjectPtr<UObject> > FinalSelectedObjects;
	if(NameAreaSettings == FDetailsViewArgs::ActorsUseNameArea)
	{
		for(auto Actor : SelectedActors)
		{
			const TWeakObjectPtr<UObject> ObjectWeakPtr = Actor.Get();
			FinalSelectedObjects.Add(ObjectWeakPtr);
		}
	}
	else if( NameAreaSettings == FDetailsViewArgs::ComponentsAndActorsUseNameArea )
	{
		for(auto Actor : SelectedActors)
		{
			const TWeakObjectPtr<UObject> ObjectWeakPtr = Actor.Get();
			FinalSelectedObjects.Add(ObjectWeakPtr);
		}

		// Note: assumes that actors and components are not selected together.
		if( FinalSelectedObjects.Num() == 0 )
		{
			for(auto Object : SelectedObjects)
			{
				UActorComponent* ActorComp = Cast<UActorComponent>(Object.Get());
				if(ActorComp && ActorComp->GetOwner())
				{
					FinalSelectedObjects.AddUnique(ActorComp->GetOwner());
				}
			}
		}
	}
	Refresh( FinalSelectedObjects );
}

PyObject *py_ue_get_owner(ue_PyUObject *self, PyObject * args) {

	ue_py_check(self);

	if (!self->ue_object->IsA<UActorComponent>()) {
		return PyErr_Format(PyExc_Exception, "uobject is not a component");
	}

	UActorComponent *component = (UActorComponent *)self->ue_object;

	ue_PyUObject *ret = ue_get_python_wrapper(component->GetOwner());
	if (!ret)
		return PyErr_Format(PyExc_Exception, "uobject is in invalid state");
	Py_INCREF(ret);
	return (PyObject *)ret;
}

PyObject *py_ue_get_actor_label(ue_PyUObject *self, PyObject * args) {

	ue_py_check(self);

	if (self->ue_object->IsA<AActor>()) {
		AActor *actor = (AActor *)self->ue_object;
		return PyUnicode_FromString(TCHAR_TO_UTF8(*(actor->GetActorLabel())));
	}

	if (self->ue_object->IsA<UActorComponent>()) {
		UActorComponent *component = (UActorComponent *)self->ue_object;
		return PyUnicode_FromString(TCHAR_TO_UTF8(*(component->GetOwner()->GetActorLabel())));
	}

	return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
}

PyObject *py_ue_simple_move_to_location(ue_PyUObject *self, PyObject * args) {

	ue_py_check(self);

	FVector vec;
	if (!py_ue_vector_arg(args, vec))
		return NULL;

	UWorld *world = ue_get_uworld(self);
	if (!world)
		return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");

	APawn *pawn = nullptr;

	if (self->ue_object->IsA<APawn>()) {
		pawn = (APawn *)self->ue_object;
	}
	else if (self->ue_object->IsA<UActorComponent>()) {
		UActorComponent *component = (UActorComponent *)self->ue_object;
		AActor *actor = component->GetOwner();
		if (actor) {
			if (actor->IsA<APawn>()) {
				pawn = (APawn *)actor;
			}
		}
	}

	if (!pawn)
		return PyErr_Format(PyExc_Exception, "uobject is not a pawn");

	AController *controller = pawn->GetController();
	if (!controller)
		return PyErr_Format(PyExc_Exception, "Pawn has no controller");

	world->GetNavigationSystem()->SimpleMoveToLocation(controller, vec);

	Py_INCREF(Py_None);
	return Py_None;
}

//.........这里部分代码省略.........
					GEditor->Layers->DisassociateActorFromLayers(OldActor);
				}

 				World->EditorDestroyActor(OldActor, /*bShouldModifyLevel =*/true);
 				OldToNewInstanceMap.Add(OldActor, NewActor);
			}
			else
			{
				FName OldName(OldObject->GetFName());
				OldObject->Rename(NULL, OldObject->GetOuter(), REN_DoNotDirty | REN_DontCreateRedirectors);
				NewUObject = NewObject<UObject>(OldObject->GetOuter(), NewClass, OldName);
				check(NewUObject != nullptr);

				UEditorEngine::CopyPropertiesForUnrelatedObjects(OldObject, NewUObject);

				if (UAnimInstance* AnimTree = Cast<UAnimInstance>(NewUObject))
				{
					// Initialising the anim instance isn't enough to correctly set up the skeletal mesh again in a
					// paused world, need to initialise the skeletal mesh component that contains the anim instance.
					if (USkeletalMeshComponent* SkelComponent = Cast<USkeletalMeshComponent>(AnimTree->GetOuter()))
					{
						SkelComponent->InitAnim(true);
					}
				}

				OldObject->RemoveFromRoot();
				OldObject->MarkPendingKill();

				OldToNewInstanceMap.Add(OldObject, NewUObject);

				if (bIsComponent)
				{
					UActorComponent* Component = Cast<UActorComponent>(NewUObject);
					AActor* OwningActor = Component->GetOwner();
					if (OwningActor)
					{
						OwningActor->ResetOwnedComponents();

						// Check to see if they have an editor that potentially needs to be refreshed
						if (OwningActor->GetClass()->ClassGeneratedBy)
						{
							PotentialEditorsForRefreshing.AddUnique(OwningActor->GetClass()->ClassGeneratedBy);
						}

						// we need to keep track of actor instances that need 
						// their construction scripts re-ran (since we've just 
						// replaced a component they own)
						OwnersToReconstruct.Add(OwningActor);
					}
				}
			}

			// If this original object came from a blueprint and it was in the selected debug set, change the debugging to the new object.
			if ((CorrespondingBlueprint) && (OldBlueprintDebugObject) && (NewUObject))
			{
				CorrespondingBlueprint->SetObjectBeingDebugged(NewUObject);
			}

			if (bLogConversions)
			{
				UE_LOG(LogBlueprint, Log, TEXT("Converted instance '%s' to '%s'"), *OldObject->GetPathName(), *NewUObject->GetPathName());
			}
		}
	}

	GEditor->OnObjectsReplaced().Remove(OnObjectsReplacedHandle);

void UUnrealEdEngine::UpdatePivotLocationForSelection( bool bOnChange )
{
	// Pick a new common pivot, or not.
	AActor* SingleActor = nullptr;
	USceneComponent* SingleComponent = nullptr;

	if (GetSelectedComponentCount() > 0)
	{
		for (FSelectedEditableComponentIterator It(*GetSelectedComponents()); It; ++It)
		{
			UActorComponent* Component = CastChecked<UActorComponent>(*It);
			AActor* ComponentOwner = Component->GetOwner();

			if (ComponentOwner != nullptr)
			{
				auto SelectedActors = GetSelectedActors();
				const bool bIsOwnerSelected = SelectedActors->IsSelected(ComponentOwner);
				check(bIsOwnerSelected);

				if (ComponentOwner->GetWorld() == GWorld)
				{
					SingleActor = ComponentOwner;
					if (Component->IsA<USceneComponent>())
					{
						SingleComponent = CastChecked<USceneComponent>(Component);
					}

					const bool IsTemplate = ComponentOwner->IsTemplate();
					const bool LevelLocked = !FLevelUtils::IsLevelLocked(ComponentOwner->GetLevel());
					check(IsTemplate || LevelLocked);
				}
			}
		}
	}
	else
	{
		for (FSelectionIterator It(GetSelectedActorIterator()); It; ++It)
		{
			AActor* Actor = static_cast<AActor*>(*It);
			checkSlow(Actor->IsA(AActor::StaticClass()));

			if (Actor->GetWorld() == GWorld)
			{
				const bool IsTemplate = Actor->IsTemplate();
				const bool LevelLocked = !FLevelUtils::IsLevelLocked(Actor->GetLevel());
				check(IsTemplate || LevelLocked);

				SingleActor = Actor;
			}
		}
	}
	
	if (SingleComponent != NULL)
	{
		SetPivot(SingleComponent->GetComponentLocation(), false, true);
	}
	else if( SingleActor != NULL ) 
	{		
		// For geometry mode use current pivot location as it's set to selected face, not actor
		FEditorModeTools& Tools = GLevelEditorModeTools();
		if( Tools.IsModeActive(FBuiltinEditorModes::EM_Geometry) == false || bOnChange == true )
		{
			// Set pivot point to the actor's location
			FVector PivotPoint = SingleActor->GetActorLocation();

			// If grouping is active, see if this actor is part of a locked group and use that pivot instead
			if(GEditor->bGroupingActive)
			{
				AGroupActor* ActorGroupRoot = AGroupActor::GetRootForActor(SingleActor, true, true);
				if(ActorGroupRoot)
				{
					PivotPoint = ActorGroupRoot->GetActorLocation();
				}
			}
			SetPivot( PivotPoint, false, true );
		}
	}
	else
	{
		ResetPivot();
	}
}

/**
 * Enacts the transaction.
 */
void FTransaction::Apply()
{
	checkSlow(Inc==1||Inc==-1);

	// Figure out direction.
	const int32 Start = Inc==1 ? 0             : Records.Num()-1;
	const int32 End   = Inc==1 ? Records.Num() :              -1;

	// Init objects.
	for( int32 i=Start; i!=End; i+=Inc )
	{
		FObjectRecord& Record = Records[i];
		Record.bRestored = false;

		UObject* Object = Record.Object.Get();
		if (Object)
		{
			if (!ChangedObjects.Contains(Object))
			{
				Object->CheckDefaultSubobjects();
				Object->PreEditUndo();
			}

			ChangedObjects.Add(Object, Record.ObjectAnnotation);
		}
	}

	if (bFlip)
	{
		for (int32 i = Start; i != End; i += Inc)
		{
			Records[i].Save(this);
		}
		for (int32 i = Start; i != End; i += Inc)
		{
			Records[i].Load(this);
		}
	}
	else
	{
		for (int32 i = Start; i != End; i += Inc)
		{
			Records[i].Restore(this);
		}
	}

	// An Actor's components must always get its PostEditUndo before the owning Actor so do a quick sort
	ChangedObjects.KeySort([](UObject& A, UObject& B)
	{
		UActorComponent* BAsComponent = Cast<UActorComponent>(&B);
		return (BAsComponent ? (BAsComponent->GetOwner() != &A) : true);
	});

	TArray<ULevel*> LevelsToCommitModelSurface;
	NumModelsModified = 0;		// Count the number of UModels that were changed.
	for (auto ChangedObjectIt : ChangedObjects)
	{
		UObject* ChangedObject = ChangedObjectIt.Key;
		UModel* Model = Cast<UModel>(ChangedObject);
		if (Model && Model->Nodes.Num())
		{
			FBSPOps::bspBuildBounds(Model);
			++NumModelsModified;
		}
		
		if (UModelComponent* ModelComponent = Cast<UModelComponent>(ChangedObject))
		{
			ULevel* Level = ModelComponent->GetTypedOuter<ULevel>();
			check(Level);
			LevelsToCommitModelSurface.AddUnique(Level);
		}

		TSharedPtr<ITransactionObjectAnnotation> ChangedObjectTransactionAnnotation = ChangedObjectIt.Value;
		if (ChangedObjectTransactionAnnotation.IsValid())
		{
			ChangedObject->PostEditUndo(ChangedObjectTransactionAnnotation);
		}
		else
		{
			ChangedObject->PostEditUndo();
		}
	}

	// Commit model surfaces for unique levels within the transaction
	for (ULevel* Level : LevelsToCommitModelSurface)
	{
		Level->CommitModelSurfaces();
	}

	// Flip it.
	if (bFlip)
	{
		Inc *= -1;
	}
	for (auto ChangedObjectIt : ChangedObjects)
	{
		UObject* ChangedObject = ChangedObjectIt.Key;
//.........这里部分代码省略.........