X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcluster.cc;h=89cb50c721ebe44e6600e5a4ebe6148aa22e5d01;hb=baac78132b2dc92516934b3c9e35dbfa575dec84;hp=90c2adcf5054a15f9f8151e878ec8220590890ca;hpb=44ad1d66c072e4d6545e75c769c86a460cb1df13;p=lilypond.git

diff --git a/lily/cluster.cc b/lily/cluster.cc
index 90c2adcf50..89cb50c721 100644
--- a/lily/cluster.cc
+++ b/lily/cluster.cc
@@ -1,11 +1,21 @@
 /*
-  cluster.cc -- implement Cluster
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2002--2009 Juergen Reuter <reuter@ipd.uka.de>
+  Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2002--2006 Juergen Reuter <reuter@ipd.uka.de>
+  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.
 
-  Han-Wen Nienhuys <hanwen@xs4all.nl>
+  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 "cluster.hh"
@@ -111,6 +121,18 @@ brew_cluster_piece (Grob *me, vector<Offset> bottom_points, vector<Offset> top_p
   return out;
 }
 
+MAKE_SCHEME_CALLBACK (Cluster, calc_cross_staff, 1);
+SCM
+Cluster::calc_cross_staff (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
+
+  extract_grob_set (me, "columns", cols);
+  Grob *commony = common_refpoint_of_array (cols, me, Y_AXIS);
+
+  return scm_from_bool (commony != me->get_parent (Y_AXIS));
+}
+
 MAKE_SCHEME_CALLBACK (Cluster, print, 1);
 SCM
 Cluster::print (SCM smob)
@@ -164,54 +186,49 @@ Cluster::print (SCM smob)
   /*
     Across a line break we anticipate on the next pitches.
   */
-  if (spanner->original ())
+  if (Spanner *next = spanner->broken_neighbor (RIGHT))
     {
-      Spanner *orig = dynamic_cast<Spanner *> (spanner->original ());
-
-      if (spanner->get_break_index () < orig->broken_intos_.size () - 1)
+      extract_grob_set (next, "columns", next_cols);
+      if (next_cols.size () > 0)
 	{
-	  Spanner *next = orig->broken_intos_[spanner->get_break_index () + 1];
-	  vector<Grob*> const &next_cols = extract_grob_array (next, "columns");
-	  if (next_cols.size () > 0)
-	    {
-	      Grob *next_commony = common_refpoint_of_array (next_cols, next, Y_AXIS);
-	      Grob *col = next_cols[0];
-
-	      Interval v = col->extent (next_commony, Y_AXIS);
-	      Real x = right_bound->relative_coordinate (commonx, X_AXIS) - left_coord;
-
-	      bottom_points.insert (bottom_points.begin (),
-				    Offset (x, v[DOWN]));
-	      top_points.insert (top_points.begin (), Offset (x, v[UP]));
-	    }
+	  Grob *next_commony = common_refpoint_of_array (next_cols, next, Y_AXIS);
+	  Grob *col = next_cols[0];
+
+	  Interval v = col->extent (next_commony, Y_AXIS);
+	  Real x = right_bound->relative_coordinate (commonx, X_AXIS) - left_coord;
+
+	  bottom_points.push_back (Offset (x, v[DOWN]));
+	  top_points.push_back (Offset (x, v[UP]));
 	}
     }
 
-  reverse (bottom_points);
-  reverse (top_points);
-
   Stencil out = brew_cluster_piece (me, bottom_points, top_points);
   out.translate_axis (- me->relative_coordinate (commony, Y_AXIS), Y_AXIS);
   return out.smobbed_copy ();
 }
 
 ADD_INTERFACE (Cluster,
-	       "A graphically drawn musical cluster. "
-	       "\n\n"
-	       "@code{padding} adds to the vertical extent of the shape (top and "
-	       "bottom). \n\n"
-	       "The property @code{style} controls the shape of cluster segments.  Valid values "
-	       "include @code{leftsided-stairs}, @code{rightsided-stairs}, @code{centered-stairs}, "
-	       "and @code{ramp}.\n",
+	       "A graphically drawn musical cluster.\n"
+	       "\n"
+	       "@code{padding} adds to the vertical extent of the shape (top"
+	       " and bottom).\n"
+	       "\n"
+	       "The property @code{style} controls the shape of cluster"
+	       " segments.  Valid values include @code{leftsided-stairs},"
+	       " @code{rightsided-stairs}, @code{centered-stairs}, and"
+	       " @code{ramp}.\n",
+
+	       /* properties */
 	       "style "
 	       "padding "
-	       "columns ");
+	       "columns "
+	       );
 
 struct Cluster_beacon
 {
 public:
   DECLARE_SCHEME_CALLBACK (height, (SCM));
-  DECLARE_GROB_INTERFACE();
+  DECLARE_GROB_INTERFACE ();
 };
 
 MAKE_SCHEME_CALLBACK (Cluster_beacon, height, 1);
@@ -225,8 +242,10 @@ Cluster_beacon::height (SCM g)
 }
 
 ADD_INTERFACE (Cluster_beacon,
-	       "A place holder for the cluster spanner to determine the vertical "
-	       "extents of a cluster spanner at this X position.",
+	       "A place holder for the cluster spanner to determine the"
+	       " vertical extents of a cluster spanner at this"
+	       " X@tie{}position.",
 
 	       /* properties */
-	       "positions ");
+	       "positions "
+	       );