X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmeasure-grouping-spanner.cc;h=1e407d17ccde587aac87f624505750b1073e6d10;hb=1b365a919e294fe2956ea96dea20ace78c55738c;hp=7d160ac8e43cfbb6f9273bdb1f13922b9770ef3c;hpb=664070d837cc4855091455892cb942cdcedeef0c;p=lilypond.git

diff --git a/lily/measure-grouping-spanner.cc b/lily/measure-grouping-spanner.cc
index 7d160ac8e4..1e407d17cc 100644
--- a/lily/measure-grouping-spanner.cc
+++ b/lily/measure-grouping-spanner.cc
@@ -1,66 +1,59 @@
-/*   
-	measure-grouping-spanner.cc --  implement Measure_grouping
+/*
+  measure-grouping-spanner.cc -- implement Measure_grouping
 
-	source file of the GNU LilyPond music typesetter
+  source file of the GNU LilyPond music typesetter
 
-	(c) 2002--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2002--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
- */
+#include "measure-grouping-spanner.hh"
 
 #include "output-def.hh"
 #include "spanner.hh"
-#include "measure-grouping-spanner.hh"
-#include "lookup.hh" 
+#include "lookup.hh"
 #include "item.hh"
 #include "staff-symbol-referencer.hh"
 
 MAKE_SCHEME_CALLBACK (Measure_grouping, print, 1);
-SCM 
+SCM
 Measure_grouping::print (SCM grob)
 {
-  Spanner * me = dynamic_cast<Spanner*> (unsmob_grob (grob));
+  Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (grob));
 
-  /*
-    TODO: robustify.
-   */
   SCM which = me->get_property ("style");
   Real height = robust_scm2double (me->get_property ("height"), 1);
 
   Real t = Staff_symbol_referencer::line_thickness (me) * robust_scm2double (me->get_property ("thickness"), 1);
   Grob *common = me->get_bound (LEFT)->common_refpoint (me->get_bound (RIGHT),
-						       X_AXIS);
+							X_AXIS);
 
-  Interval rext = me->get_bound (RIGHT)->extent (common, X_AXIS);
-  
-  
-  Real w =(rext.is_empty ()
-	   ? me->get_bound (RIGHT)->relative_coordinate (common, X_AXIS)
-	   : rext[RIGHT])
-    - me->get_bound (LEFT)->relative_coordinate (common, X_AXIS);
-
-  Interval iv (0,w);
+  Real right_point = robust_relative_extent (me->get_bound (RIGHT),
+					     common, X_AXIS).linear_combination (CENTER);
+  Real left_point = me->get_bound (LEFT)->relative_coordinate (common, X_AXIS);
 
+  Interval iv (left_point, right_point);
   Stencil m;
 
   /*
     TODO: use line interface
-   */
+  */
   if (which == ly_symbol2scm ("bracket"))
-    {
-      m = Lookup::bracket (X_AXIS, iv, t, -height, t);
-    }
+    m = Lookup::bracket (X_AXIS, iv, t, -height, t);
   else if (which == ly_symbol2scm ("triangle"))
-    {
-      m = Lookup::triangle (iv, t, height);
-    }
+    m = Lookup::triangle (iv, t, height);
 
   m.align_to (Y_AXIS, DOWN);
+  m.translate_axis (- me->relative_coordinate (common, X_AXIS), X_AXIS);
   return m.smobbed_copy ();
 }
 
-ADD_INTERFACE (Measure_grouping,"measure-grouping-interface",
-	       "This objectt indicates groups of beats. "
-	       "Valid choices for @code{style} are @code{bracket} and @code{triangle}.",
-	       "thickness style height");
+ADD_INTERFACE (Measure_grouping,
+	       "This object indicates groups of beats.  Valid choices for"
+	       " @code{style} are @code{bracket} and @code{triangle}.",
+
+	       /* properties */
+	       "thickness "
+	       "style "
+	       "height "
+	       );
 
-