trem fix

[lilypond.git] / lily / tie-column.cc

diff --git a/lily/tie-column.cc b/lily/tie-column.cc
index 58d3db3dca84751319914cf23666d1ca155cc2b8..e364bf7f03299582d7394b9b869d70903e5c7577 100644 (file)
--- a/lily/tie-column.cc
+++ b/lily/tie-column.cc
@@ -3,7 +3,7 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
@@ -16,19 +16,7 @@
 
 
 
-void
-Tie_column::set_interface (Score_element*me)
-{
-  me->set_interface (ly_symbol2scm ("tie-column-interface"));
-  me->set_extent_callback (SCM_EOL, X_AXIS);
-  me->set_extent_callback (SCM_EOL, Y_AXIS) ; 
-}
 
-bool
-Tie_column::has_interface (Score_element*me)
-{
-  return  me->has_interface (ly_symbol2scm ("tie-column-interface"));
-}
 
 
 /*
@@ -36,7 +24,7 @@ Tie_column::has_interface (Score_element*me)
 */
 
 void
-Tie_column::add_tie (Score_element*me,Score_element *s)
+Tie_column::add_tie (Grob*me,Grob *s)
 {
   if (!  Pointer_group_interface ::count (me, "ties"))
     {
@@ -44,16 +32,16 @@ Tie_column::add_tie (Score_element*me,Score_element *s)
       dynamic_cast<Spanner*> (me)->set_bound (RIGHT, Tie::head (s,RIGHT));
     }
   
-  Pointer_group_interface::add_element (me, "ties",s);
+  Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), s);
   s->add_dependency (me);
 }
 
 
 int
-tie_compare (Score_element* const & s1,
-            Score_element* const & s2)
+tie_compare (Grob* const & s1,
+            Grob* const & s2)
 {
-  return sign (Tie::position_f (s1) - Tie::position_f(s2));
+  return sign (Tie::position_f (s1) - Tie::position_f (s2));
 }
 
 /*
@@ -66,17 +54,17 @@ tie_compare (Score_element* const & s1,
   Ross forgets about the tie that is *on* the middle staff line. We
   assume it goes UP. (TODO: make me settable) */
 void
-Tie_column::set_directions (Score_element*me)
+Tie_column::set_directions (Grob*me)
 {
-  Link_array<Score_element> ties =
-    Pointer_group_interface__extract_elements (me, (Score_element*)0, "ties");
+  Link_array<Grob> ties =
+    Pointer_group_interface__extract_grobs (me, (Grob*)0, "ties");
 
-  for (int i = ties.size (); i--; )
+  for (int i = ties.size (); i--;)
     if (Directional_element_interface::get (ties[i]))
       ties.del (i);
   
 
-  if(!ties.size())
+  if (!ties.size ())
     return ;
   
 
@@ -85,7 +73,7 @@ Tie_column::set_directions (Score_element*me)
     {
       for (int i = ties.size (); i--;)
        {
-         Score_element *  t = ties[i];
+         Grob *  t = ties[i];
          Directional_element_interface::set (t, d);
        }
       return;
@@ -93,19 +81,19 @@ Tie_column::set_directions (Score_element*me)
   
   if (ties.size () == 1)
     {
-      Score_element *  t = ties[0];      
+      Grob *  t = ties[0];      
       Directional_element_interface::set (t,Tie::get_default_dir (t));
       return;
     }
   
   ties.sort (tie_compare);
-  Directional_element_interface::set( ties[0], DOWN);
+  Directional_element_interface::set (ties[0], DOWN);
   ties.del (0);
   
-  Directional_element_interface ::set(ties.pop (), UP);
-  for (int i=ties.size(); i--; )
+  Directional_element_interface ::set (ties.pop (), UP);
+  for (int i=ties.size (); i--;)
     {
-      Score_element *  t = ties[i];
+      Grob *  t = ties[i];
       Real p = Tie::position_f (t);
       Direction d = (Direction) sign (p);
       if (!d)
@@ -115,10 +103,17 @@ Tie_column::set_directions (Score_element*me)
   
 }
 
-MAKE_SCHEME_CALLBACK(Tie_column,after_line_breaking,1);
+MAKE_SCHEME_CALLBACK (Tie_column,after_line_breaking,1);
 SCM
 Tie_column::after_line_breaking (SCM smob)
 {
-  set_directions (unsmob_element (smob));
+  set_directions (unsmob_grob (smob));
   return SCM_UNSPECIFIED;
 }
+
+
+
+ADD_INTERFACE (Tie_column,"tie-column-interface",
+  "that sets tie directions in a tied chord",
+  "direction");
+