X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fgrob-array.hh;h=1a755fe66196c2bdbbf301c2217a068d06a010b0;hb=88f80785a4eaa56c941bedcfe2c9508793eea2a5;hp=093b2d6bdc2750f1a4e28ef11eff45e9b74af10e;hpb=00b9619cea1020f6773f23df8764ef85ee2912bf;p=lilypond.git

diff --git a/lily/include/grob-array.hh b/lily/include/grob-array.hh
index 093b2d6bdc..1a755fe661 100644
--- a/lily/include/grob-array.hh
+++ b/lily/include/grob-array.hh
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2005--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -27,8 +27,8 @@
 class Grob_array : public Simple_smob<Grob_array>
 {
 public:
-  static int print_smob (SCM, SCM, scm_print_state *);
-  SCM mark_smob ();
+  int print_smob (SCM, scm_print_state *) const;
+  SCM mark_smob () const;
   static const char type_p_name_[];
 private:
   vector<Grob *> grobs_;
@@ -41,16 +41,29 @@ public:
   void set_ordered (bool b) { ordered_ = b; }
   Item *item (vsize i);
   Spanner *spanner (vsize i);
-  Grob *grob (vsize i) { return grobs_.at (i); }
+  Grob *grob (vsize i) const { return grobs_.at (i); }
   vsize size () const { return grobs_.size (); }
-  bool empty () const;
+  bool empty () const { return grobs_.empty (); }
   void remove_duplicates ();
-  void clear ();
+  void clear () { grobs_.clear (); }
   void add (Grob *x) { grobs_.push_back (x); }
-  void set_array (vector<Grob *> const &src);
-  vector<Grob *> &array_reference ();
-  vector<Grob *> const &array () const;
+  void set_array (vector<Grob *> const &src) { grobs_ = src; }
+  vector<Grob *> &array_reference () { return grobs_; }
+  vector<Grob *> const &array () const { return grobs_; }
   static SCM make_array ();
+
+  // Remove grobs that do not satisfy the predicate, leaving the order
+  // unchanged.
+  void filter (bool (*predicate) (const Grob *));
+
+  // Run a function on all grobs in this array.  If the function returns null,
+  // remove the original grob, reducing the size of the array.  If the function
+  // returns a Grob, replace the original grob with the returned Grob.
+  void filter_map (Grob * (*map_fun) (Grob *));
+
+  // Like src.filter_map (f), but store the result in this array instead of
+  // mutating the input.
+  void filter_map_assign (const Grob_array &src, Grob * (*map_fun) (Grob *));
 };