X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fline-spanner.cc;h=bb9b2327445fb279e22cef4f234350055261fff5;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=7066c3de25b9fe62b238b219bd1053213794ff6e;hpb=c6bd020ed6dfc2c197d195541be8ff60129ccbce;p=lilypond.git

diff --git a/lily/line-spanner.cc b/lily/line-spanner.cc
index 7066c3de25..bb9b232744 100644
--- a/lily/line-spanner.cc
+++ b/lily/line-spanner.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2000--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 2000--2008 Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
 #include "align-interface.hh"
@@ -100,7 +100,7 @@ Line_spanner::calc_bound_info (SCM smob, Direction dir)
 	}
       
       details = scm_acons (ly_symbol2scm ("X"),
-			   scm_from_double (bound_grob->extent (commonx, X_AXIS)
+			   scm_from_double (robust_relative_extent (bound_grob, commonx, X_AXIS)
 					    .linear_combination (attach)),
 			   details);
     }
@@ -254,6 +254,7 @@ Line_spanner::print (SCM smob)
 
   Drul_array<Real> gaps (0, 0);
   Drul_array<bool> arrows (0, 0);
+  Drul_array<Real> anchor_align (0, 0);
   Drul_array<Stencil*> stencils (0,0);
   Drul_array<Grob*> common_y (0, 0);
   do
@@ -262,6 +263,8 @@ Line_spanner::print (SCM smob)
 						 bounds[d], SCM_BOOL_F), 0.0);
       arrows[d] = to_boolean (ly_assoc_get (ly_symbol2scm ("arrow"),
 					    bounds[d], SCM_BOOL_F));
+      anchor_align[d] = robust_scm2double (ly_assoc_get (ly_symbol2scm ("anchor-alignment"),
+								 bounds[d], SCM_BOOL_F), LEFT);
       stencils[d] = unsmob_stencil (ly_assoc_get (ly_symbol2scm ("stencil"),
 						  bounds[d], SCM_BOOL_F));
       common_y[d] = unsmob_grob (ly_assoc_get (ly_symbol2scm ("common-Y"),
@@ -290,22 +293,26 @@ Line_spanner::print (SCM smob)
 
       if (stencils[d])
 	{
-	 Stencil s = stencils[d]->translated (span_points[d]);
-	 SCM align = ly_assoc_get (ly_symbol2scm ("stencil-align-dir-y"),
-				   bounds[d], SCM_BOOL_F);
-	 SCM off = ly_assoc_get (ly_symbol2scm ("stencil-offset"),
-				 bounds[d], SCM_BOOL_F);
+	  Interval ext = stencils[d]->extent (X_AXIS);
+	  Real anchor = ext.linear_combination (anchor_align[d]) - ext[LEFT];
+	  span_points[d][X_AXIS] -= anchor;
 
-	 if (scm_is_number (align)) 
-	   s.align_to (Y_AXIS, scm_to_double (align));
+	  Stencil s = stencils[d]->translated (span_points[d]);
+	  SCM align = ly_assoc_get (ly_symbol2scm ("stencil-align-dir-y"),
+				    bounds[d], SCM_BOOL_F);
+	  SCM off = ly_assoc_get (ly_symbol2scm ("stencil-offset"),
+				  bounds[d], SCM_BOOL_F);
 
-	 /*
-	   todo: should use font-size.
+	  if (scm_is_number (align)) 
+	    s.align_to (Y_AXIS, scm_to_double (align));
+
+	  /*
+	    todo: should use font-size.
 	  */
-	 if (is_number_pair (off))
-	   s.translate (ly_scm2offset (off));
+	  if (is_number_pair (off))
+	    s.translate (ly_scm2offset (off));
 	 
-	 line.add_stencil (s);
+	  line.add_stencil (s);
 	}
     }
   while (flip (&d) != LEFT);
@@ -336,23 +343,26 @@ Line_spanner::print (SCM smob)
   line.translate (Offset (-me->relative_coordinate (commonx, X_AXIS),
 			  -me->relative_coordinate (my_common_y, Y_AXIS)));
 			  
-    
+
   return line.smobbed_copy ();
 }
 
 ADD_INTERFACE (Line_spanner,
-	       "Generic line drawn between two objects, e.g. for use with glissandi.\n"
-	       "The property @code{style} can be @code{line}, "
-	       "@code{dashed-line}, @code{trill}, \n"
-	       "@code{dotted-line} or @code{zigzag}.\n"
-	       "\n",
-
-	       "bound-details " 
+	       "Generic line drawn between two objects, e.g., for use with"
+	       " glissandi.\n"
+	       "\n"
+	       "The property @code{style} can be @code{line},"
+	       " @code{dashed-line}, @code{trill}, @code{dotted-line} or"
+	       " @code{zigzag}.",
+
+	       /* properties */
+	       "bound-details "
 	       "extra-dy "
 	       "gap "
 	       "left-bound-info "
 	       "note-columns "
-	       "right-bound-info " 
+	       "right-bound-info "
 	       "thickness "
+	       "to-barline "
 	       );