Run `make grand-replace'.

[lilypond.git] / lily / rod.cc

diff --git a/lily/rod.cc b/lily/rod.cc
index a10ba753db70694b2b1b16868253bccb88bef1b8..a94bcb399671f3995b7cde709629862715a47fbb 100644 (file)
--- a/lily/rod.cc
+++ b/lily/rod.cc
@@ -1,12 +1,13 @@
-/*   
-  rod.cc --  implement Rod, Column_rod
-  
+/*
+  rod.cc -- implement Rod, Column_rod
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1998--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1998--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
 #include "rod.hh"
+
 #include "paper-column.hh"
 #include "warn.hh"
 #include "dimensions.hh"
@@ -15,30 +16,34 @@
 Rod::Rod ()
 {
   distance_ = 0.0;
-  item_l_drul_[LEFT] = item_l_drul_[RIGHT] =0;
+  item_drul_[LEFT] = item_drul_[RIGHT] = 0;
 }
 
-
-
 void
 Rod::columnize ()
 {
-  Direction d = LEFT;
-  do {
-    Paper_column * pc = item_l_drul_[d]->get_column ();
-    distance_ += - d * item_l_drul_[d]->relative_coordinate (pc, X_AXIS);
-    item_l_drul_[d] = pc;
-  } while ((flip (&d))!=LEFT);
+  if (!item_drul_[LEFT]
+      || !item_drul_[RIGHT])
+    return;
 
+  Direction d = LEFT;
+  do
+    {
+      Paper_column *pc = item_drul_[d]->get_column ();
+      distance_ += -d * item_drul_[d]->relative_coordinate (pc, X_AXIS);
+      item_drul_[d] = pc;
+    }
+  while ((flip (&d)) != LEFT);
 }
 
 void
 Rod::add_to_cols ()
 {
   columnize ();
-  if (item_l_drul_[LEFT] != item_l_drul_[RIGHT])
-    Spaceable_grob::add_rod (item_l_drul_[LEFT],
-                               item_l_drul_[RIGHT],
-                               distance_);
+  if (item_drul_[LEFT] != item_drul_[RIGHT]
+      && item_drul_[LEFT] && item_drul_[RIGHT])
+    Spaceable_grob::add_rod (item_drul_[LEFT],
+                            item_drul_[RIGHT],
+                            distance_);
 }