virtual System *get_system () const;
virtual Paper_column *get_column () const;
virtual void handle_prebroken_dependencies ();
virtual System *get_system () const;
virtual Paper_column *get_column () const;
virtual void handle_prebroken_dependencies ();
DECLARE_GROB_INTERFACE();
protected:
virtual void discretionary_processing ();
void copy_breakable_items ();
virtual void derived_mark () const;
DECLARE_GROB_INTERFACE();
protected:
virtual void discretionary_processing ();
void copy_breakable_items ();
virtual void derived_mark () const;