Fix the usage of min-distance in page breaking.

[lilypond.git] / lily / include / system.hh

diff --git a/lily/include/system.hh b/lily/include/system.hh
index 1889dce65ce82b9b484f1c40fdda309f17597512..3bc7250d6f0606ac80fbe84ae2920f3734162be2 100644 (file)
--- a/lily/include/system.hh
+++ b/lily/include/system.hh
@@ -1,51 +1,87 @@
-
 /*
-  line-of-score.hh -- part of GNU LilyPond
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (C) 1996--2010 Han-Wen Nienhuys
+
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
 
-  (c) 1996--2004 Han-Wen Nienhuys
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #ifndef SYSTEM_HH
 #define SYSTEM_HH
 
-
 #include "column-x-positions.hh"
 #include "spanner.hh"
+#include "skyline.hh"
 
 /*
   If you keep following offset reference points, you will always end
-up at the root object. This root object is called @ref{System}, and it
-represents a system (i.e. a line of music).
-
-
- */
+  up at the root object. This root object is called @ref{System}, and it
+  represents a system (i.e. a line of music).
+*/
 class System : public Spanner
 {
-public:
   int rank_;
+  Grob_array *all_elements_;
+  void init_elements ();
+  friend class Paper_score;    // ugh.
+  Paper_score *pscore_;        // ugh.
+  
+public:
+  Paper_score *paper_score () const;
+  Grob *get_vertical_alignment ();
+  Grob *get_extremal_staff (Direction dir, Interval const&);
+  int get_rank () const;
+  void do_break_substitution_and_fixup_refpoints ();
   void post_processing ();
-  SCM get_line ();
-  SCM get_lines ();
+  SCM get_paper_system ();
+  SCM get_paper_systems ();
+  SCM get_broken_system_grobs ();
+
+  DECLARE_SCHEME_CALLBACK (calc_pure_relevant_grobs, (SCM));
+  DECLARE_SCHEME_CALLBACK (height, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_pure_height, (SCM, SCM, SCM));
+
+  System (SCM);
+  System (System const &);
 
-  System (SCM, Object_key const*);
-  System (System const&, int);
-  virtual Grob *clone (int count) const;
-  
   int element_count () const;
   int spanner_count () const;
 
-  void break_into_pieces (Array<Column_x_positions> const&);
-  static bool has_interface (Grob*);
-  
-  Link_array<Item> broken_col_range (Item const*, Item const*) const;
-  Link_array<Grob> columns () const;
-  
-  void add_column (Paper_column*);
-  void typeset_grob (Grob*);
+  void break_into_pieces (vector<Column_x_positions> const &);
+  DECLARE_GROB_INTERFACE();
+
+  vector<Item*> broken_col_range (Item const *, Item const *) const;
+  vector<Grob*> used_columns () const;
+  Paper_column *column (vsize i) const;
+
+  void add_column (Paper_column *);
+  void typeset_grob (Grob *);
   void pre_processing ();
 
+  Interval begin_of_line_pure_height (vsize start, vsize end);
+  Interval rest_of_line_pure_height (vsize start, vsize end);
+  Interval pure_refpoint_extent (vsize start, vsize end);
+
 protected:
+  virtual void derived_mark () const;
+  virtual Grob *clone () const;
+
+private:
+  Interval part_of_line_pure_height (vsize start, vsize end, bool begin);
 };
 
+void set_loose_columns (System *which, Column_x_positions const *posns);
+
 #endif /* SYSTEM_HH */