X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Frest-collision.cc;h=dd92f083e36db01a468dcc5a2acf9d1299cd11ad;hb=3dd560c0c440c9e97730ca13f6d5abbb020bb02e;hp=5825671a17c69eeb84c28020c2c435820b232bb8;hpb=1cdd20054babbf7ce6eb6a135854abc2d8f00f8f;p=lilypond.git

diff --git a/lily/rest-collision.cc b/lily/rest-collision.cc
index 5825671a17..dd92f083e3 100644
--- a/lily/rest-collision.cc
+++ b/lily/rest-collision.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "rest-collision.hh"
@@ -41,7 +41,7 @@ Rest_collision::force_shift_callback (SCM smob)
   return scm_from_double (0.0);
 }
 
-MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Rest_collision, force_shift_callback_rest, 2, 1);
+MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Rest_collision, force_shift_callback_rest, 2, 1, "");
 SCM
 Rest_collision::force_shift_callback_rest (SCM rest, SCM offset)
 {
@@ -87,11 +87,14 @@ Rest_collision::add_column (Grob *me, Grob *p)
   TODO: look at horizontal-shift to determine ordering between rests
   for more than two voices.
 */
-MAKE_SCHEME_CALLBACK(Rest_collision, calc_positioning_done, 1);
+MAKE_SCHEME_CALLBACK (Rest_collision, calc_positioning_done, 1);
 SCM
 Rest_collision::calc_positioning_done (SCM smob)
 {
   Grob *me = unsmob_grob (smob);
+
+  me->set_property ("positioning-done", SCM_BOOL_T);
+
   extract_grob_set (me, "elements", elts);
 
   vector<Grob*> rests;
@@ -117,7 +120,7 @@ Rest_collision::calc_positioning_done (SCM smob)
     no partners to collide with
   */
   if (rests.size () + notes.size () < 2)
-    return SCM_UNSPECIFIED;
+    return SCM_BOOL_T;
 
   Real staff_space = Staff_symbol_referencer::staff_space (me);
   /*
@@ -155,7 +158,7 @@ Rest_collision::calc_positioning_done (SCM smob)
 	      if (ordered_rests[-d].size () > 1)
 		ordered_rests[-d][0]->warning (_ ("too many colliding rests"));
 
-	      return SCM_UNSPECIFIED;
+	      return SCM_BOOL_T;
 	    }
 	}
       while (flip (&d) != LEFT);
@@ -210,22 +213,38 @@ Rest_collision::calc_positioning_done (SCM smob)
 	  }
 
       if (!rcol)
-	return SCM_UNSPECIFIED;
+	return SCM_BOOL_T;
 
       Grob *rest = Note_column::get_rest (rcol);
       Grob *common = common_refpoint_of_array (notes, rcol, Y_AXIS);
 
       Interval restdim = rcol->extent (common, Y_AXIS);
       if (restdim.is_empty ())
-	return SCM_UNSPECIFIED;
+	return SCM_BOOL_T;
 
       Real staff_space = Staff_symbol_referencer::staff_space (rcol);
       Real minimum_dist = robust_scm2double (me->get_property ("minimum-distance"), 1.0) * staff_space;
 
       Interval notedim;
       for (vsize i = 0; i < notes.size (); i++)
-	notedim.unite (notes[i]->extent (common, Y_AXIS));
-
+	{
+	  if (Note_column::dir (notes[i]) == -dir)
+	    {
+	      /* try not to look at the stem, as looking at a beamed
+		 note may trigger beam positioning prematurely.
+
+		 This happens with dotted rests, which need Y
+		 positioning to compute X-positioning.
+	      */
+	      Grob *head = Note_column::first_head (notes[i]);
+	      if (head)
+		notedim.unite (head->extent (common, Y_AXIS));
+	      else
+		programming_error ("Note_column without first_head()");
+	    }
+	  else
+	    notedim.unite (notes[i]->extent (common, Y_AXIS));
+	}
 
       Real y = dir * max (0.0,
 			  -dir * restdim[-dir] + dir * notedim[dir]  + minimum_dist);
@@ -249,7 +268,7 @@ Rest_collision::calc_positioning_done (SCM smob)
 
       Note_column::translate_rests (rcol, discrete_y);
     }
-  return SCM_UNSPECIFIED;
+  return SCM_BOOL_T;
 }
 
 ADD_INTERFACE (Rest_collision,