Add penalty to interface.

[lilypond.git] / lily / separating-group-spanner.cc

diff --git a/lily/separating-group-spanner.cc b/lily/separating-group-spanner.cc
index 47bacd392fdf4cf06d7009f7ae991b11417f32f7..5ac17e5b1717218cbf0efee58ba1684ccb41aab0 100644 (file)
--- a/lily/separating-group-spanner.cc
+++ b/lily/separating-group-spanner.cc
@@ -28,9 +28,9 @@ Separating_group_spanner::find_rods (Item * r, SCM next, Real padding)
     return; 
 
 
-  for(; gh_pair_p (next); next = ly_cdr (next))
+  for (; is_pair (next); next = ly_cdr (next))
     {
-      Item *l = dynamic_cast<Item*> (unsmob_grob (ly_car( next)));
+      Item *l = dynamic_cast<Item*> (unsmob_grob (ly_car ( next)));
       Item *lb = l->find_prebroken_piece (RIGHT);
 
       if (lb)
@@ -72,23 +72,18 @@ Separating_group_spanner::find_rods (Item * r, SCM next, Real padding)
     }
 }
 
-MAKE_SCHEME_CALLBACK (Separating_group_spanner,set_spacing_rods_and_seqs,1);
-SCM
-Separating_group_spanner::set_spacing_rods_and_seqs (SCM smob)
-{
-  set_spacing_rods (smob);
-
-  return SCM_UNSPECIFIED;
-}
-
 MAKE_SCHEME_CALLBACK (Separating_group_spanner,set_spacing_rods,1);
 SCM
 Separating_group_spanner::set_spacing_rods (SCM smob)
 {
   Grob*me = unsmob_grob (smob);
-  Real padding = robust_scm2double (me->get_grob_property ("padding"), 0.1);
+
+  /*
+    Ugh: padding is added doubly, also for SeparationItem
+   */
+  Real padding = robust_scm2double (me->get_property ("padding"), 0.1);
   
-  for (SCM s = me->get_grob_property ("elements"); gh_pair_p (s) && gh_pair_p (ly_cdr (s)); s = ly_cdr (s))
+  for (SCM s = me->get_property ("elements"); is_pair (s) && is_pair (ly_cdr (s)); s = ly_cdr (s))
     {
       /*
        Order of elements is reversed!
@@ -122,5 +117,6 @@ Separating_group_spanner::add_spacing_unit (Grob* me ,Item*i)
 
 
 ADD_INTERFACE (Separating_group_spanner,"separation-spanner-interface",
-  "Spanner that containing @code{separation-item-interface} grobs to calculate rods",
-  "");
+              "A spanner that calculates spacing constraints (\"rods\") "
+              "using the @code{separation-item-interface} grobs in @code{elements}.",
+              "elements padding");