duh.

[lilypond.git] / lily / axis-group-interface.cc

diff --git a/lily/axis-group-interface.cc b/lily/axis-group-interface.cc
index e133402284f201a9c0e7dcd224802ec2d04cc979..51e8c2f82e7819d012a81f5bb3880425fdf77d4e 100644 (file)
--- a/lily/axis-group-interface.cc
+++ b/lily/axis-group-interface.cc
@@ -3,7 +3,7 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 #include "hara-kiri-group-spanner.hh"
@@ -13,15 +13,15 @@
 void
 Axis_group_interface::add_element (Grob*me,Grob *e)
 {
-  for (SCM ax = me->get_grob_property ("axes"); ax != SCM_EOL ; ax = gh_cdr (ax))
+  for (SCM ax = me->get_grob_property ("axes"); ax != SCM_EOL ; ax = ly_cdr (ax))
     {
-      Axis a = (Axis) gh_scm2int (gh_car (ax));
+      Axis a = (Axis) gh_scm2int (ly_car (ax));
       
-      if (!e->parent_l (a))
+      if (!e->get_parent (a))
        e->set_parent (me, a);
     }
 
-  Pointer_group_interface::add_element (me, "elements", e);
+  Pointer_group_interface::add_grob (me, ly_symbol2scm ("elements"), e);
   me->add_dependency (e);
 }
 
@@ -41,9 +41,9 @@ Interval
 Axis_group_interface::relative_group_extent (Axis a, Grob *common, SCM elts)
 {
   Interval r;
-  for (SCM s = elts; gh_pair_p (s); s = gh_cdr (s))
+  for (SCM s = elts; gh_pair_p (s); s = ly_cdr (s))
     {
-      Grob * se = unsmob_grob (gh_car (s));
+      Grob * se = unsmob_grob (ly_car (s));
       Interval dims = se->extent (common, a);
       if (!dims.empty_b ())
        r.unite (dims);
@@ -58,13 +58,7 @@ Axis_group_interface::group_extent_callback (SCM element_smob, SCM scm_axis)
   Grob *me = unsmob_grob (element_smob);
   Axis a = (Axis) gh_scm2int (scm_axis);
 
-  Grob * common = (Grob*) me;
-
-  for (SCM s = me->get_grob_property ("elements"); gh_pair_p (s); s = gh_cdr (s))
-    {
-      Grob * se = unsmob_grob (gh_car (s));
-      common = se->common_refpoint (common, a);
-    }
+  Grob * common = common_refpoint_of_list (me->get_grob_property ("elements"), me, a);
 
   Real my_coord = me->relative_coordinate (common, a);
   Interval r (relative_group_extent (a, common, me->get_grob_property ("elements")));
@@ -72,12 +66,9 @@ Axis_group_interface::group_extent_callback (SCM element_smob, SCM scm_axis)
   return ly_interval2scm (r - my_coord);
 }
 
-
-
 void
 Axis_group_interface::set_axes (Grob*me,Axis a1, Axis a2)
 {
-  // set_interface () ?
   SCM sa1= gh_int2scm (a1);
   SCM sa2 = gh_int2scm (a2);
 
@@ -94,17 +85,17 @@ Axis_group_interface::set_axes (Grob*me,Axis a1, Axis a2)
     }
 
   if (a1 != X_AXIS && a2 != X_AXIS)
-    me->set_extent_callback (SCM_EOL, X_AXIS);
+    me->set_extent (SCM_EOL, X_AXIS);
   if (a1 != Y_AXIS && a2 != Y_AXIS)
-    me->set_extent_callback (SCM_EOL, Y_AXIS);
+    me->set_extent (SCM_EOL, Y_AXIS);
 
   /*
     why so convoluted ? (fixme/documentme?) 
    */
   if (me->has_extent_callback_b (Grob::molecule_extent_proc, a1))
-    me->set_extent_callback (Axis_group_interface::group_extent_callback_proc,a1);
+    me->set_extent (Axis_group_interface::group_extent_callback_proc,a1);
   if (me->has_extent_callback_b (Grob::molecule_extent_proc, a2))
-    me->set_extent_callback (Axis_group_interface::group_extent_callback_proc,a2);
+    me->set_extent (Axis_group_interface::group_extent_callback_proc,a2);
 }
 
 Link_array<Grob> 
@@ -116,9 +107,9 @@ Axis_group_interface::get_children (Grob*me)
   if (!has_interface (me))
     return childs;
   
-  for (SCM ep = me->get_grob_property ("elements"); gh_pair_p (ep); ep = gh_cdr (ep))
+  for (SCM ep = me->get_grob_property ("elements"); gh_pair_p (ep); ep = ly_cdr (ep))
     {
-      Grob* e = unsmob_grob (gh_car (ep));
+      Grob* e = unsmob_grob (ly_car (ep));
       if (e)
        childs.concat (Axis_group_interface::get_children (e));
     }
@@ -126,19 +117,8 @@ Axis_group_interface::get_children (Grob*me)
   return childs;
 }
 
-bool
-Axis_group_interface::has_interface (Grob*me)
-{
-  return me && me->has_interface (ly_symbol2scm ("axis-group-interface"));
-}
 
 
-
-void
-Axis_group_interface::set_interface (Grob*me)
-{
-  if (!has_interface (me))
-    {
-      me->set_interface (ly_symbol2scm ("axis-group-interface"));      
-    }
-}
+ADD_INTERFACE (Axis_group_interface, "axis-group-interface",
+  "a group of coupled grobs",
+  "axes");