inline void setTitleVisibility(Bool b) { title_vis = b; }
inline void setMovable(Bool b) { movable = b; }
inline void setHideTree(Bool h) { hide_tree = h; }
inline void setTitleVisibility(Bool b) { title_vis = b; }
inline void setMovable(Bool b) { movable = b; }
inline void setHideTree(Bool h) { hide_tree = h; }