void AActor::PreEditChange(UProperty* PropertyThatWillChange)
{
Super::PreEditChange(PropertyThatWillChange);
if ( ReregisterComponentsWhenModified() )
{
UnregisterAllComponents();
}
}
void AActor::PreEditChange(UProperty* PropertyThatWillChange)
{
Super::PreEditChange(PropertyThatWillChange);
UObjectProperty* ObjProp = Cast<UObjectProperty>(PropertyThatWillChange);
UBlueprintGeneratedClass* BPGC = Cast<UBlueprintGeneratedClass>(GetClass());
if ( BPGC != nullptr && ObjProp != nullptr )
{
BPGC->UnbindDynamicDelegatesForProperty(this, ObjProp);
}
if ( ReregisterComponentsWhenModified() )
{
UnregisterAllComponents();
}
}
void AActor::PreEditChange(UProperty* PropertyThatWillChange)
{
Super::PreEditChange(PropertyThatWillChange);
UObjectProperty* ObjProp = Cast<UObjectProperty>(PropertyThatWillChange);
UBlueprintGeneratedClass* BPGC = Cast<UBlueprintGeneratedClass>(GetClass());
if ( BPGC != nullptr && ObjProp != nullptr )
{
BPGC->UnbindDynamicDelegatesForProperty(this, ObjProp);
}
// During SIE, allow components to be unregistered here, and then reregistered and reconstructed in PostEditChangeProperty.
if ((GEditor && GEditor->bIsSimulatingInEditor) || ReregisterComponentsWhenModified())
{
UnregisterAllComponents();
}
}
void AActor::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
UProperty* PropertyThatChanged = PropertyChangedEvent.Property;
FName PropertyName = PropertyThatChanged != NULL ? PropertyThatChanged->GetFName() : NAME_None;
const bool bTransformationChanged = (PropertyName == Name_RelativeLocation || PropertyName == Name_RelativeRotation || PropertyName == Name_RelativeScale3D);
// During SIE, allow components to reregistered and reconstructed in PostEditChangeProperty.
// This is essential as construction is deferred during spawning / duplication when in SIE.
if ((GEditor && GEditor->bIsSimulatingInEditor) || ReregisterComponentsWhenModified())
{
// In the Undo case we have an annotation storing information about constructed components and we do not want
// to improperly apply out of date changes so we need to skip registration of all blueprint created components
// and defer instance components attached to them until after rerun
if (CurrentTransactionAnnotation.IsValid())
{
UnregisterAllComponents();
TInlineComponentArray<UActorComponent*> Components;
GetComponents(Components);
Components.Sort([](UActorComponent& A, UActorComponent& B)
{
if (&B == B.GetOwner()->GetRootComponent())
{
return false;
}
if (USceneComponent* ASC = Cast<USceneComponent>(&A))
{
if (ASC->GetAttachParent() == &B)
{
return false;
}
}
return true;
});
bool bRequiresReregister = false;
for (UActorComponent* Component : Components)
{
if (Component->CreationMethod == EComponentCreationMethod::Native)
{
Component->RegisterComponent();
}
else if (Component->CreationMethod == EComponentCreationMethod::Instance)
{
USceneComponent* SC = Cast<USceneComponent>(Component);
if (SC == nullptr || SC == RootComponent || (SC->GetAttachParent() && SC->GetAttachParent()->IsRegistered()))
{
Component->RegisterComponent();
}
else
{
bRequiresReregister = true;
}
}
else
{
bRequiresReregister = true;
}
}
RerunConstructionScripts();
if (bRequiresReregister)
{
ReregisterAllComponents();
}
}
else
{
UnregisterAllComponents();
RerunConstructionScripts();
ReregisterAllComponents();
}
}
// Let other systems know that an actor was moved
if (bTransformationChanged)
{
GEngine->BroadcastOnActorMoved( this );
}
if (GetWorld())
{
GetWorld()->bDoDelayedUpdateCullDistanceVolumes = true;
}
FEditorSupportDelegates::UpdateUI.Broadcast();
Super::PostEditChangeProperty(PropertyChangedEvent);
}
