X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fspanner.hh;h=79032dfb305c2d52dc2eef5f3d057e52565240c7;hb=3af0951f9a11677240efa6228683dd4fcea13eaf;hp=e7745cb528ba70214ddc82065855d3d11b6d5f6e;hpb=5d1ddaf889233f8e5c32a118f9e843e1becca2d2;p=lilypond.git

diff --git a/lily/include/spanner.hh b/lily/include/spanner.hh
index e7745cb528..79032dfb30 100644
--- a/lily/include/spanner.hh
+++ b/lily/include/spanner.hh
@@ -1,7 +1,20 @@
 /*
-  spanner.hh -- part of GNU LilyPond
+  This file is part of LilyPond, the GNU music typesetter.
 
-  (c) 1996--2005 Han-Wen Nienhuys
+  Copyright (C) 1996--2015 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.
+
+  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 SPANNER_HH
@@ -11,61 +24,73 @@
 #include "rod.hh"
 
 /** A symbol which is attached between two columns. A spanner is a
-  symbol which spans across several columns, so its final appearance
-  can only be calculated after the breaking problem is solved.
-
-  Examples
-
-  * (de)crescendo
-  * slur
-  * beam
-  * bracket
-
-  Spanner should know about the items which it should consider:
-  e.g. slurs should be steep enough to "enclose" all those items. This
-  is absolutely necessary for beams, since they have to adjust the
-  length of stems of notes they encompass.
-
-  */
-class Spanner : public  Grob {
-  Drul_array<Item*> spanned_drul_;
-  int break_index_;
-  
+    symbol which spans across several columns, so its final appearance
+    can only be calculated after the breaking problem is solved.
+
+    Examples
+
+    * (de)crescendo
+    * slur
+    * beam
+    * bracket
+
+    Spanner should know about the items which it should consider:
+    e.g. slurs should be steep enough to "enclose" all those items. This
+    is absolutely necessary for beams, since they have to adjust the
+    length of stems of notes they encompass.
+*/
+class Spanner : public Grob
+{
+  Drul_array<Item *> spanned_drul_;
+  vsize break_index_;
+
+  DECLARE_CLASSNAME (Spanner);
+
 public:
   DECLARE_SCHEME_CALLBACK (set_spacing_rods, (SCM));
-  
-  Link_array<Spanner> broken_intos_;
+  DECLARE_SCHEME_CALLBACK (calc_normalized_endpoints, (SCM));
+  DECLARE_SCHEME_CALLBACK (bounds_width, (SCM));
+  DECLARE_SCHEME_CALLBACK (kill_zero_spanned_time, (SCM));
+
+  vector<Spanner *> broken_intos_;
+
+  vsize get_break_index () const;
+  Spanner *broken_neighbor (Direction d) const;
 
-  int get_break_index () const;
   // todo: move to somewhere else.
   Real get_broken_left_end_align () const;
-  void substitute_one_mutable_property (SCM sym, SCM val)  ;
-  bool fast_fubstitute_grob_list (SCM sym, SCM grob_list);
-  // TODO: make virtual and do this for Items as well.
-  Interval_t<int> spanned_rank_iv ();
-  void set_bound (Direction d, Grob*);
+  void substitute_one_mutable_property (SCM sym, SCM val);
+
+  Interval_t<Moment> spanned_time () const;
+  virtual Interval_t<int> spanned_rank_interval () const;
+  void set_bound (Direction d, Grob *);
   Item *get_bound (Direction d) const;
-  
-  Spanner (SCM, Object_key const*);
-  Spanner (Spanner const &, int copy_count);
+
+  Spanner (SCM);
+  Spanner (Spanner const &);
   bool is_broken () const;
   void do_break ();
   Real spanner_length () const;
 
-  static int compare (Spanner * const &, Spanner * const &);
-  virtual Grob* find_broken_piece (System*) const;
-  virtual SCM do_derived_mark () const;
-  static bool has_interface (Grob*);
+  static int compare (Spanner *const &, Spanner *const &);
+  static bool less (Spanner *const &, Spanner *const &);
+  virtual Grob *find_broken_piece (System *) const;
+  virtual void derived_mark () const;
   virtual System *get_system () const;
 
+  SCM get_cached_pure_property (SCM sym, int start, int end);
+  void cache_pure_property (SCM sym, int start, int end, SCM value);
+
 protected:
+  SCM pure_property_cache_;
+
   void set_my_columns ();
-  virtual Grob *clone (int count) const;
+  virtual Grob *clone () const;
   virtual void do_break_processing ();
+  bool fast_substitute_grob_array (SCM sym, Grob_array *);
 };
 
-void add_bound_item (Spanner*, Grob*);
+void add_bound_item (Spanner *, Grob *);
 
-bool spanner_less ( Spanner *s1, Spanner* s2);
-int broken_spanner_index (Spanner * sp);
+bool spanner_less (Spanner *s1, Spanner *s2);
 #endif