void FSequencer::ResetToNewRootMovieScene( UMovieScene& NewRoot, TSharedRef<ISequencerObjectBindingManager> NewObjectBindingManager )
{
DestroySpawnablesForAllMovieScenes();
//@todo Sequencer - Encapsulate this better
MovieSceneStack.Empty();
Selection.Empty();
FilteringShots.Empty();
UnfilterableSections.Empty();
UnfilterableObjects.Empty();
MovieSceneSectionToInstanceMap.Empty();
NewRoot.SetFlags(RF_Transactional);
ObjectBindingManager = NewObjectBindingManager;
// Focusing the initial movie scene needs to be done before the first time GetFocusedMovieSceneInstane or GetRootMovieSceneInstance is used
RootMovieSceneInstance = MakeShareable(new FMovieSceneInstance(NewRoot));
MovieSceneStack.Add(RootMovieSceneInstance.ToSharedRef());
SequencerWidget->ResetBreadcrumbs();
NotifyMovieSceneDataChanged();
}
void FSequencer::OnRequestNodeDeleted( TSharedRef<const FSequencerDisplayNode>& NodeToBeDeleted )
{
bool bAnySpawnablesRemoved = false;
bool bAnythingRemoved = false;
TSharedRef<FMovieSceneInstance> MovieSceneInstance = GetFocusedMovieSceneInstance();
UMovieScene* OwnerMovieScene = MovieSceneInstance->GetMovieScene();
// Only object nodes or section areas can be deleted
if( NodeToBeDeleted->GetType() == ESequencerNode::Object )
{
OwnerMovieScene->SetFlags( RF_Transactional );
const FGuid& BindingToRemove = StaticCastSharedRef<const FObjectBindingNode>( NodeToBeDeleted )->GetObjectBinding();
//@todo Sequencer - add transaction
// Try to remove as a spawnable first
bool bRemoved = OwnerMovieScene->RemoveSpawnable( BindingToRemove );
if( bRemoved )
{
bAnySpawnablesRemoved = true;
}
if( !bRemoved )
{
// The guid should be associated with a possessable if it wasnt a spawnable
bRemoved = OwnerMovieScene->RemovePossessable( BindingToRemove );
// @todo Sequencer - undo needs to work here
ObjectBindingManager->UnbindPossessableObjects( BindingToRemove );
// If this check fails the guid was not associated with a spawnable or possessable so there was an invalid guid being stored on a node
check( bRemoved );
}
bAnythingRemoved = true;
}
else if( NodeToBeDeleted->GetType() == ESequencerNode::Track )
{
TSharedRef<const FTrackNode> SectionAreaNode = StaticCastSharedRef<const FTrackNode>( NodeToBeDeleted );
UMovieSceneTrack* Track = SectionAreaNode->GetTrack();
UMovieScene* FocusedMovieScene = GetFocusedMovieScene();
FocusedMovieScene->SetFlags( RF_Transactional );
if( FocusedMovieScene->IsAMasterTrack( Track ) )
{
FocusedMovieScene->RemoveMasterTrack( Track );
}
else
{
FocusedMovieScene->RemoveTrack( Track );
}
bAnythingRemoved = true;
}
if( bAnythingRemoved )
{
if( bAnySpawnablesRemoved )
{
// @todo Sequencer Sub-MovieScenes needs to destroy objects for all movie scenes that had this node
SpawnOrDestroyPuppetObjects( MovieSceneInstance );
}
NotifyMovieSceneDataChanged();
}
}