source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-
#ifndef PAPER_COLUMN_HH
#define PAPER_COLUMN_HH
#include "item.hh"
#include "rod.hh"
-
class Paper_column : public Item
-{
-public:
- int rank_;
+{
+ int rank_;
/// if lines are broken then this column is in #line#
System *system_;
+ // ugh: friend declarations.
+ friend void set_loose_columns (System *which, Column_x_positions const *posns);
+ friend class System;
+public:
Paper_column (SCM);
- VIRTUAL_COPY_CONSTRUCTOR (Grob, Paper_column);
+ Paper_column (Paper_column const &);
- static bool has_interface (Grob*);
+ virtual Grob *clone () const;
virtual void do_break_processing ();
virtual Paper_column *get_column () const;
virtual System *get_system () const;
-
- static int get_rank (Grob*);
-
+ void set_system (System *);
+
+ static int compare (Grob * const &a,
+ Grob * const &b);
+ static bool less_than (Grob *const &a,
+ Grob *const &b);
+
+ int get_rank () const { return rank_; }
+ void set_rank (int);
+
DECLARE_SCHEME_CALLBACK (print, (SCM));
DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM));
-
- static bool is_musical (Grob *);
- static Moment when_mom (Grob*);
- static bool is_used (Grob*) ;
- void set_rank (int);
+ DECLARE_GROB_INTERFACE();
+ static int get_rank (Grob const *);
+ static bool is_musical (Grob *);
+ static Moment when_mom (Grob *);
+ static bool is_used (Grob *);
+ static bool is_breakable (Grob *);
};
-
+
#endif // PAPER_COLUMN_HH