X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fspanner.hh;h=6c0fc1cbed436b0a4bebb5dcefc381663033df00;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=828391d70bdf9f53e45b6c7f713e9312105ad387;hpb=339ea28cd7e4f8a1c1ca7c1d4dfe803a3f4c03e6;p=lilypond.git

diff --git a/lily/include/spanner.hh b/lily/include/spanner.hh
index 828391d70b..788b0e46ee 100644
--- a/lily/include/spanner.hh
+++ b/lily/include/spanner.hh
@@ -1,81 +1,104 @@
 /*
-  spanner.hh -- part of GNU LilyPond
+  This file is part of LilyPond, the GNU music typesetter.
 
-  (c) 1996--1999 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
 #define SPANNER_HH
 
-#include "lily-proto.hh"
-#include "score-element.hh"
-#include "drul-array.hh"
+#include "grob.hh"
 #include "rod.hh"
 
-struct Breaking_information
+/** 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
 {
-  Line_of_score *line_l_;
-  Spanner * broken_spanner_l_;
-  Drul_array<Item*> bounds_;
-  Breaking_information ()
-    {
-      line_l_ =0;
-      broken_spanner_l_ =0;
-      bounds_[LEFT] = bounds_[RIGHT] =0;
-    }
-};
+  Drul_array<Item *> spanned_drul_;
+  vsize break_index_;
+
+  DECLARE_CLASSNAME (Spanner);
 
-class Axis_group_spanner;
-/** 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
-
-  \begin{itemize}
-  \item (de)crescendo
-  \item slur
-  \item beam
-  \item bracket
-  \end{itemize}
-  
-
-  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 virtual Score_element {
 public:
-  Drul_array<Item*> spanned_drul_;
-  Link_array<Spanner> broken_into_l_arr_;
-  void set_bounds (Direction d, Item*);
+  DECLARE_SCHEME_CALLBACK (set_spacing_rods, (SCM));
+  DECLARE_SCHEME_CALLBACK (calc_normalized_endpoints, (SCM));
+  DECLARE_SCHEME_CALLBACK (bounds_width, (SCM));
+  DECLARE_SCHEME_CALLBACK (kill_zero_spanned_time, (SCM));
 
-  
-  Spanner ();
+  static Spanner *unsmob (SCM s) {
+    return dynamic_cast <Spanner *> (Grob::unsmob (s));
+  }
+  static bool is_smob (SCM s) {
+    return Grob::is_smob (s) && unsmob (s);
+  }
+
+  vector<Spanner *> broken_intos_;
+
+  vsize get_break_index () const;
+  Spanner *broken_neighbor (Direction d) const;
+
+  // todo: move to somewhere else.
+  Real get_broken_left_end_align () const;
+  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);
   Spanner (Spanner const &);
-  bool broken_b () const;
+  bool is_broken () const;
+  void do_break ();
+  Real spanner_length () const;
 
-  virtual Array<Rod> get_rods () const;
-  virtual Array<Spring> get_springs () const;  
-  virtual Spanner* find_broken_piece (Line_of_score*) const;
-protected:
-  void set_my_columns ();
-  VIRTUAL_COPY_CONS(Score_element);
+  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;
+  DECLARE_GROB_INTERFACE ();
+  virtual System *get_system () const;
 
-  /**
-    this is virtual; for instance, Line_of_score overrides it.
-    */
-  virtual void break_into_pieces ();
+  SCM get_cached_pure_property (SCM sym, int start, int end);
+  void cache_pure_property (SCM sym, int start, int end, SCM value);
 
-  friend Axis_group_spanner; // UGH
+protected:
+  SCM pure_property_cache_;
 
-  virtual void do_space_processing ();
-  void handle_broken_dependents ();
+  void set_my_columns ();
+  virtual Grob *clone () const;
   virtual void do_break_processing ();
-  virtual Interval do_width () const;
-  virtual void do_print () const;
-  virtual Line_of_score*line_l () const;
+  bool fast_substitute_grob_array (SCM sym, Grob_array *);
 };
+
+void add_bound_item (Spanner *, Grob *);
+
+bool spanner_less (Spanner *s1, Spanner *s2);
 #endif