X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fsemi-tie-column.cc;h=c0e9999159b59ad5e7a1a49d8473b7f71ceda173;hb=c7b4d476fc85f5b831efaa66f712b15ced19e366;hp=c7d44a9568fa506c12196ba8f1285a97f45c137f;hpb=f9214bac21e9926dc3248416f58190c98c4167a9;p=lilypond.git

diff --git a/lily/semi-tie-column.cc b/lily/semi-tie-column.cc
index c7d44a9568..c0e9999159 100644
--- a/lily/semi-tie-column.cc
+++ b/lily/semi-tie-column.cc
@@ -1,10 +1,21 @@
 /*
-  semi-tie-column.cc -- implement Semi_tie_column
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2005--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "semi-tie-column.hh"
@@ -20,8 +31,8 @@
 #include "tie-column-format.hh"
 
 
-ADD_INTERFACE(Semi_tie_column,
-	      "The interface for a column of l.v. ties.",
+ADD_INTERFACE (Semi_tie_column,
+	      "The interface for a column of l.v. (laissez vibrer) ties.",
 
 	      /* properties */
 	      "positioning-done "
@@ -34,12 +45,14 @@ ADD_INTERFACE(Semi_tie_column,
 /*
   Cut & paste from tie-column.cc
  */   
-MAKE_SCHEME_CALLBACK(Semi_tie_column, calc_positioning_done, 1);
+MAKE_SCHEME_CALLBACK (Semi_tie_column, calc_positioning_done, 1);
 SCM
 Semi_tie_column::calc_positioning_done (SCM smob)
 {
   Grob *me = unsmob_grob (smob);
-  
+
+  me->set_property ("positioning-done", SCM_BOOL_T);
+    
   extract_grob_set (me, "ties", lv_ro_ties);
   vector<Grob*> lv_ties (lv_ro_ties);
 
@@ -56,7 +69,7 @@ Semi_tie_column::calc_positioning_done (SCM smob)
   problem.set_manual_tie_configuration (manual_configs);
 
   Ties_configuration base = problem.generate_optimal_configuration ();
-  for (vsize i = 0; i < lv_ties.size(); i++)
+  for (vsize i = 0; i < lv_ties.size (); i++)
     {
       SCM cp = Tie::get_control_points (lv_ties[i], problem.common_x_refpoint (), base[i],
 					problem.details_);
@@ -70,4 +83,23 @@ Semi_tie_column::calc_positioning_done (SCM smob)
   return SCM_BOOL_T;
 }
   
+MAKE_SCHEME_CALLBACK (Semi_tie_column, calc_head_direction, 1);
+SCM
+Semi_tie_column::calc_head_direction (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
 
+  extract_grob_set (me, "ties", ties);
+  Direction d = LEFT;
+  for (vsize i = 0; i < ties.size (); i++)
+    {
+      Direction this_d = to_dir (ties[i]->get_property ("head-direction"));
+      if (i > 0 && d != this_d)
+	{
+	  programming_error ("all semi-ties in a semi-tie-column should have the same head-direction");
+	  return scm_from_int (d);
+	}
+      d = this_d;
+    }
+  return scm_from_int (d);
+}