Doc-es: various updates.

[lilypond.git] / lily / grob-array.cc

diff --git a/lily/grob-array.cc b/lily/grob-array.cc
index 593ce6a568462236441fbabda7109c5197e13b2f..f5228dfd7148d91296dac7765b8b197cb162f34c 100644 (file)
--- a/lily/grob-array.cc
+++ b/lily/grob-array.cc
@@ -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
@@ -39,40 +39,23 @@ Grob_array::Grob_array ()
   ordered_ = true;
 }
 
-vector<Grob *> &
-Grob_array::array_reference ()
-{
-  return grobs_;
-}
-
-vector<Grob *> const &
-Grob_array::array () const
-{
-  return grobs_;
-}
-
 SCM
-Grob_array::mark_smob (SCM s)
+Grob_array::mark_smob () const
 {
-  (void) s;
-
 #if 0  /* see System::derived_mark () const */
-  Grob_array *ga = Grob_array::unsmob (s);
-  for (vsize i = 0; i < ga->grobs_.size (); i++)
-    scm_gc_mark (ga->grobs_[i]->self_scm ());
+  for (vsize i = 0; i < grobs_.size (); i++)
+    scm_gc_mark (grobs_[i]->self_scm ());
 #endif
   return SCM_UNDEFINED;
 }
 
 int
-Grob_array::print_smob (SCM arr, SCM port, scm_print_state *)
+Grob_array::print_smob (SCM port, scm_print_state *) const
 {
   scm_puts ("#<Grob_array", port);
-
-  Grob_array *grob_arr = unsmob (arr);
-  for (vsize i = 0; i < grob_arr->size (); i++)
+  for (vsize i = 0; i < size (); i++)
     {
-      scm_display (grob_arr->grob (i)->self_scm (), port);
+      scm_display (grob (i)->self_scm (), port);
       scm_puts (" ", port);
     }
   scm_puts (">", port);
@@ -86,12 +69,6 @@ Grob_array::make_array ()
   return ga.smobbed_copy ();
 }
 
-void
-Grob_array::clear ()
-{
-  grobs_.clear ();
-}
-
 void
 Grob_array::remove_duplicates ()
 {
@@ -100,28 +77,55 @@ Grob_array::remove_duplicates ()
   uniquify (grobs_);
 }
 
-bool
-Grob_array::empty () const
+void
+Grob_array::filter (bool (*predicate) (const Grob *))
 {
-  return grobs_.empty ();
+  vsize new_size = 0;
+  for (vsize i = 0; i < grobs_.size (); ++i)
+    if (predicate (grobs_[i]))
+      grobs_[new_size++] = grobs_[i];
+  grobs_.resize (new_size);
+  // could call grobs_.shrink_to_fit () with C++11
 }
 
 void
-Grob_array::set_array (vector<Grob *> const &src)
+Grob_array::filter_map (Grob * (*map_fun) (Grob *))
 {
-  grobs_ = src;
+  vsize new_size = 0;
+  for (vsize i = 0; i < grobs_.size (); ++i)
+    if (Grob *grob = map_fun (grobs_[i]))
+      grobs_[new_size++] = grob;
+  grobs_.resize (new_size);
+  // could call grobs_.shrink_to_fit () with C++11
+}
+
+void
+Grob_array::filter_map_assign (const Grob_array &src,
+                               Grob * (*map_fun) (Grob *))
+{
+  if (&src != this)
+    {
+      grobs_.resize (0);
+      grobs_.reserve (src.grobs_.size ());
+      for (vsize i = 0; i < src.grobs_.size (); i++)
+        if (Grob *grob = map_fun (src.grobs_[i]))
+          grobs_.push_back (grob);
+      // could call grobs_.shrink_to_fit () with C++11
+    }
+  else
+    filter_map (map_fun);
 }
 
-const char Grob_array::type_p_name_[] = "ly:grob-array?";
+const char * const Grob_array::type_p_name_ = "ly:grob-array?";
 
 
 SCM
 grob_list_to_grob_array (SCM lst)
 {
   SCM arr_scm = Grob_array::make_array ();
-  Grob_array *ga = Grob_array::unsmob (arr_scm);
+  Grob_array *ga = unsmob<Grob_array> (arr_scm);
   for (SCM s = lst; scm_is_pair (s); s = scm_cdr (s))
-    ga->add (Grob::unsmob (scm_car (s)));
+    ga->add (unsmob<Grob> (scm_car (s)));
   return arr_scm;
 }