X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpointer-group-interface.cc;h=08af94839d443930a0f7e26240f9038745a2aa1b;hb=6a12a54ddfec3bbdd3f90c8df1b1df0739a1b569;hp=def0d3701bdcf1ca45f45a1f19f7e037a9f74878;hpb=94189ec2b8da6d7e89dc619c646a927adead9b19;p=lilypond.git

diff --git a/lily/pointer-group-interface.cc b/lily/pointer-group-interface.cc
index def0d3701b..08af94839d 100644
--- a/lily/pointer-group-interface.cc
+++ b/lily/pointer-group-interface.cc
@@ -1,15 +1,101 @@
-/*   
-  group-interface.cc --  implement Pointer_group_interface
-  
+/*
+  pointer-group-interface.cc -- implement Pointer_group_interface
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1999--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
-#include "group-interface.hh"
+
+  (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "pointer-group-interface.hh"
+
+#include "grob-array.hh"
 #include "grob.hh"
 
+int
+Pointer_group_interface::count (Grob *me, SCM sym)
+{
+  Grob_array *arr = unsmob_grob_array (me->internal_get_object (sym));
+  return arr ? arr->size () : 0;
+}
+
+void
+Pointer_group_interface::add_grob (Grob *me, SCM sym, SCM p)
+{
+  add_grob (me, sym, unsmob_grob (p));
+}
+
+void
+Pointer_group_interface::set_ordered (Grob *me, SCM sym, bool ordered)
+{
+  Grob_array *arr = get_grob_array (me, sym);
+  arr->set_ordered (ordered);
+}
+
+Grob_array *
+Pointer_group_interface::get_grob_array (Grob *me, SCM sym)
+{
+  SCM scm_arr = me->internal_get_object (sym);
+  Grob_array *arr = unsmob_grob_array (scm_arr);
+  if (!arr)
+    {
+      scm_arr = Grob_array::make_array ();
+      arr = unsmob_grob_array (scm_arr);
+      me->set_object (sym, scm_arr);
+    }
+  return arr;
+}
+
+Grob *
+Pointer_group_interface::find_grob (Grob *me, SCM sym, bool (*pred) (Grob*))
+{
+  Grob_array *arr = get_grob_array (me, sym);
+
+  for (vsize i = 0; i < arr->size (); i++)
+    if (pred (arr->grob (i)))
+      return arr->grob (i);
+
+  return 0;
+}
+
+void
+Pointer_group_interface::add_grob (Grob *me, SCM sym, Grob *p)
+{
+  Grob_array *arr = get_grob_array (me, sym);
+  arr->add (p);
+}
+
+void
+Pointer_group_interface::add_unordered_grob (Grob *me, SCM sym, Grob *p)
+{
+  Grob_array *arr = get_grob_array (me, sym);
+  arr->add (p);
+  arr->set_ordered (false);
+}
+
+static vector<Grob*> empty_array;
 
+vector<Grob*> const &
+ly_scm2link_array (SCM x)
+{
+  Grob_array *arr = unsmob_grob_array (x);
+  return arr ? arr->array () : empty_array;
+}
 
+vector<Grob*> const &
+internal_extract_grob_array (Grob const *elt, SCM symbol)
+{
+  return elt
+    ? ly_scm2link_array (elt->internal_get_object (symbol))
+    : empty_array;
+}
 
+vector<Item*>
+internal_extract_item_array (Grob const *elt, SCM symbol)
+{
+  Grob_array *arr = unsmob_grob_array (elt->internal_get_object (symbol));
+  vector<Item*> items;
+  for (vsize i = 0; arr && i < arr->size (); i++)
+    items.push_back (arr->item (i));
 
+  return items;
+}