release: 1.3.53

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

diff --git a/lily/separating-group-spanner.cc b/lily/separating-group-spanner.cc
index 590a10c78b978236da19b7551b5035c17b93a42c..295bef4824fa866176c26ac6224b0a8dc1add831 100644 (file)
--- a/lily/separating-group-spanner.cc
+++ b/lily/separating-group-spanner.cc
@@ -3,7 +3,7 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
@@ -17,17 +17,19 @@ static Rod
 make_rod (Single_malt_grouping_item *l, Single_malt_grouping_item *r)
 {
   Rod rod;
-  rod.item_l_drul_[LEFT] =l;
-  rod.item_l_drul_[RIGHT]=r;
 
   Interval li (l->my_width ());
   Interval ri (r->my_width ());
-  
+
+  rod.item_l_drul_[LEFT] =l;
+  rod.item_l_drul_[RIGHT]=r;
+
   if (li.empty_b () || ri.empty_b ())
     rod.distance_f_ = 0;
   else
     rod.distance_f_ = li[RIGHT] - ri[LEFT];
 
+  rod.columnize ();
   return rod;
 }
   
@@ -37,20 +39,30 @@ Separating_group_spanner::get_rods () const
 {
   Array<Rod> a;
   
-  for (int i=0; i < spacing_unit_l_arr_.size () -1; i++)
+  for (SCM s = get_elt_property ("elements"); gh_pair_p (s) && gh_pair_p (gh_cdr (s)); s = gh_cdr (s))
     {
-      Single_malt_grouping_item *l =spacing_unit_l_arr_[i];
+      /*
+       Order of elements is reversed!
+       */
+      SCM elt = gh_cadr (s);
+      SCM next_elt = gh_car (s);
+
+      Single_malt_grouping_item *l = dynamic_cast<Single_malt_grouping_item*> (unsmob_element (elt));
+      Single_malt_grouping_item *r = dynamic_cast<Single_malt_grouping_item*> (unsmob_element ( next_elt));
+
+      if (!r || !l)
+       continue;
+      
       Single_malt_grouping_item *lb
-       = dynamic_cast<Single_malt_grouping_item*>(l->find_broken_piece (RIGHT));
-      Single_malt_grouping_item *r = spacing_unit_l_arr_[i+1];
+       = dynamic_cast<Single_malt_grouping_item*>(l->find_prebroken_piece (RIGHT));
+
       Single_malt_grouping_item *rb
-       = dynamic_cast<Single_malt_grouping_item*>(r->find_broken_piece (LEFT));
+       = dynamic_cast<Single_malt_grouping_item*>(r->find_prebroken_piece (LEFT));
       
-      a.push (make_rod(spacing_unit_l_arr_[i], spacing_unit_l_arr_[i+1]));
+      a.push (make_rod(l,  r));
       if (lb)
        {
          Rod rod(make_rod (lb, r));
-         rod.distance_f_ += padding_f_;
          a.push (rod);
        }
       
@@ -62,34 +74,40 @@ Separating_group_spanner::get_rods () const
       if (lb && rb)
        {
          Rod rod(make_rod (lb, rb));
-         rod.distance_f_ += padding_f_;
          a.push (rod);
        }
     }
-      
+
+  /*
+    We've done our job, so we get lost. 
+   */
+  for (SCM s = get_elt_property ("elements"); gh_pair_p (s); s = gh_cdr (s))
+    {
+      Item * it =dynamic_cast<Item*>(unsmob_element (gh_car (s)));
+      if (it && it->broken_b ())
+       {
+         it->find_prebroken_piece (LEFT) ->suicide ();
+         it->find_prebroken_piece (RIGHT)->suicide ();
+       }
+      it->suicide ();
+    }
+  
+  ((Separating_group_spanner *)this)->suicide ();
+  
   return a;
 }
 
 void
 Separating_group_spanner::add_spacing_unit (Single_malt_grouping_item*i)
 {
-  spacing_unit_l_arr_.push (i);
+  set_elt_property ("elements",
+                   gh_cons (i->self_scm_,
+                            get_elt_property ("elements")));
   add_dependency (i);
 }
 
-void
-Separating_group_spanner::do_substitute_element_pointer (Score_element*o,
-                                                        Score_element*n)
-{
-  if (dynamic_cast<Single_malt_grouping_item *> (o))
-    {
-      Single_malt_grouping_item*ns = dynamic_cast<Single_malt_grouping_item *> (n);
-      spacing_unit_l_arr_.substitute (dynamic_cast<Single_malt_grouping_item *> (o), ns);
-    }
-}
 
-Separating_group_spanner::Separating_group_spanner()
+Separating_group_spanner::Separating_group_spanner ()
 {
-  set_elt_property (break_helper_only_scm_sym, SCM_BOOL_T);
-  padding_f_ =0.0;
+  set_elt_property ("elements", SCM_EOL);
 }