X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ffigured-bass-continuation.cc;h=fcfddb94e6f4654ff48e3624e99b2da618792208;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=1969cf30d557be06ca99f3af942d8dd7168d0fe2;hpb=95007e0bdb368a9eb77e241e9952cb3a8651633d;p=lilypond.git

diff --git a/lily/figured-bass-continuation.cc b/lily/figured-bass-continuation.cc
index 1969cf30d5..fcfddb94e6 100644
--- a/lily/figured-bass-continuation.cc
+++ b/lily/figured-bass-continuation.cc
@@ -3,12 +3,11 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2005--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
 */
 
 #include "line-interface.hh"
-#include "lily-guile.hh"
 #include "spanner.hh"
 #include "output-def.hh"
 #include "item.hh"
@@ -21,25 +20,26 @@
 
 struct Figured_bass_continuation
 {
-  static bool has_interface (Grob*);
+  DECLARE_GROB_INTERFACE ();
   
 public:
-  DECLARE_SCHEME_CALLBACK(print, (SCM));
-  DECLARE_SCHEME_CALLBACK(center_on_figures, (SCM, SCM));
+  DECLARE_SCHEME_CALLBACK (print, (SCM));
+  DECLARE_SCHEME_CALLBACK (center_on_figures, (SCM));
 };
 
-MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 2);
+MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 1);
 SCM
-Figured_bass_continuation::center_on_figures (SCM grob, SCM axis)
+Figured_bass_continuation::center_on_figures (SCM grob)
 {
   Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
-  (void) axis;
-  
   extract_grob_set (me, "figures", figures);
+  if (figures.empty ())
+    return scm_from_double (0.0);
   Grob *common = common_refpoint_of_array (figures, me, Y_AXIS);
 
   Interval ext = Axis_group_interface::relative_group_extent (figures, common, Y_AXIS);
-  
+  if (ext.is_empty ())
+    return scm_from_double (0.0);
   return scm_from_double (ext.center () - me->relative_coordinate (common, Y_AXIS));
 }
 
@@ -50,7 +50,7 @@ Figured_bass_continuation::print (SCM grob)
   Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
 
   Real thick =
-    me->get_layout ()->get_dimension (ly_symbol2scm ("linethickness"))
+    me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
     * robust_scm2double (me->get_property ("thickness"), 1);
   
   Interval spanned;
@@ -59,8 +59,13 @@ Figured_bass_continuation::print (SCM grob)
 							X_AXIS);
   do
     {
+      Item *bound = me->get_bound (d);
+      Direction extdir =
+	(d == LEFT && to_boolean (bound->get_property ("implicit")))
+	? LEFT : RIGHT;
+
       spanned[d] 
-	= robust_relative_extent (me->get_bound (d), common, X_AXIS)[RIGHT]
+	= robust_relative_extent (bound, common, X_AXIS)[extdir]
 	- me->relative_coordinate (common, X_AXIS);
     }
   while (flip (&d) !=  LEFT);
@@ -75,11 +80,10 @@ Figured_bass_continuation::print (SCM grob)
   return extender.smobbed_copy ();
 }
 
-ADD_INTERFACE(Figured_bass_continuation,
-	      "figured-bass-continuation-interface",
+ADD_INTERFACE (Figured_bass_continuation,
 	      "Simple extender line between bounds.",
 	      
-	      /* props */
+	      /* properties */
 	      "thickness "
 	      "padding "
 	      "figures "