experimental: load 'decorations' BGAnimation and make decorations children of the Screen so that their draworder relative to other children of the Screen can be controlled

stepmania/src/ActorFrame.cpp

@@ -144,6 +144,13 @@ void ActorFrame::RemoveChild( Actor* pActor )
 		m_SubActors.erase( iter );
 }
 
+void ActorFrame::TransferChildren( ActorFrame *pTo )
+{
+	FOREACH( Actor*, m_SubActors, i )
+		pTo->AddChild( *i );
+	RemoveAllChildren();
+}
+
 Actor* ActorFrame::GetChild( const RString &sName )
 {
 	FOREACH( Actor*, m_SubActors, a )

stepmania/src/ActorFrame.h

@@ -18,6 +18,7 @@ public:
 
 	virtual void AddChild( Actor *pActor );
 	virtual void RemoveChild( Actor *pActor );
+	void TransferChildren( ActorFrame *pTo );
 	Actor* GetChild( const RString &sName );
 	int GetNumChildren() const { return m_SubActors.size(); }
 

stepmania/src/ScreenWithMenuElements.cpp

@@ -93,6 +93,15 @@ void ScreenWithMenuElements::Init()
 	this->AddChild( m_sprOverlay );
 	LOAD_ALL_COMMANDS( m_sprOverlay );
 	
+	/* Experimental: Load "decorations" and make them children of the screen. */
+	{
+		AutoActor decorations;
+		decorations.Load( THEME->GetPathB(m_sName,"decorations") );
+		ActorFrame *pFrame = dynamic_cast<ActorFrame*>((Actor*)decorations);
+		if( pFrame )
+			pFrame->TransferChildren( this );
+	}
+
 	m_In.SetName( "In" );
 	m_In.Load( THEME->GetPathB(m_sName,"in") );
 	m_In.SetDrawOrder( DRAW_ORDER_TRANSITIONS );