X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fslur.cc;h=90ccf302d6d0e9b4e757d3672e10665186479440;hb=8e3d69a83919b4754f73c1ad99239938d157edb8;hp=a801281cd7e9feaa5fa28274c28216477f6f9e75;hpb=b696bba38675d4b9ba88cc64e3111d3dec0fc506;p=lilypond.git

diff --git a/lily/slur.cc b/lily/slur.cc
index a801281cd7..90ccf302d6 100644
--- a/lily/slur.cc
+++ b/lily/slur.cc
@@ -1,10 +1,21 @@
 /*
-  slur.cc -- implement external interface for Slur
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
-
-  (c) 1996--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1996--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
+
+  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.
+
+  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 "slur.hh"
@@ -119,34 +130,33 @@ Slur::print (SCM smob)
   Bezier one = get_curve (me);
   Stencil a;
 
-  SCM p = me->get_property ("dash-period");
-  SCM f = me->get_property ("dash-fraction");
-  if (scm_is_number (p) && scm_is_number (f))
-    a = Lookup::dashed_slur (one, line_thick, robust_scm2double (p, 1.0),
-			     robust_scm2double (f, 0));
-  else
-    a = Lookup::slur (one,
-		      get_grob_direction (me) * base_thick,
-		      line_thick);
+  SCM dash_definition = me->get_property ("dash-definition");
+  a = Lookup::slur (one,
+                    get_grob_direction (me) * base_thick,
+		    line_thick,
+                    dash_definition);
 
 #if DEBUG_SLUR_SCORING
-  SCM quant_score = me->get_property ("quant-score");
-
-  if (to_boolean (me->layout ()
-		  ->lookup_variable (ly_symbol2scm ("debug-slur-scoring")))
-      && scm_is_string (quant_score))
+  SCM annotation = me->get_property ("annotation");
+  if (!scm_is_string (annotation))
+    {
+      SCM debug = me->layout ()->lookup_variable (ly_symbol2scm ("debug-slur-scoring"));
+      if (to_boolean (debug))
+	annotation = me->get_property ("quant-score");
+    }
+  
+  if (scm_is_string (annotation))
     {
       string str;
       SCM properties = Font_interface::text_font_alist_chain (me);
 
-
       if (!scm_is_number (me->get_property ("font-size")))
 	properties = scm_cons (scm_acons (ly_symbol2scm ("font-size"), scm_from_int (-6), SCM_EOL),
 			     properties);
       
       Stencil tm = *unsmob_stencil (Text_interface::interpret_markup
 				    (me->layout ()->self_scm (), properties,
-				     quant_score));
+				     annotation));
       a.add_at_edge (Y_AXIS, get_grob_direction (me), tm, 1.0);
     }
 #endif
@@ -157,7 +167,7 @@ Slur::print (SCM smob)
 
 /*
   it would be better to do this at engraver level, but that is
-  fragile, as the breakabl items are generated on staff level, at
+  fragile, as the breakable items are generated on staff level, at
   which point slur starts and ends have to be tracked
 */
 void
@@ -276,9 +286,9 @@ Slur::outside_slur_callback (SCM grob, SCM offset_scm)
 					 0.0);
   yext.widen (slur_padding);
 
-  Real EPS = 1e-3;
+  const Real EPS = 1e-3;
   Interval bezext (curve.control_[0][X_AXIS], curve.control_[3][X_AXIS]);
-  bool consider[] = { false, false, false };
+  bool consider[] = {false, false, false};
   Real ys[] = {0, 0, 0};
   bool do_shift = false;
   
@@ -305,11 +315,13 @@ Slur::outside_slur_callback (SCM grob, SCM offset_scm)
     }
 
   Real avoidance_offset = 0.0;
-  for (int d = LEFT, k = 0; d <= RIGHT; d++, k++)
-    if (consider[k]) 
-      avoidance_offset = dir * (max (dir * avoidance_offset,
-				     dir * (ys[k] - yext[-dir] + dir * slur_padding)));
-  
+  if (do_shift)
+    {
+      for (int d = LEFT, k = 0; d <= RIGHT; d++, k++)
+	if (consider[k])
+	  avoidance_offset = dir * (max (dir * avoidance_offset,
+					 dir * (ys[k] - yext[-dir] + dir * slur_padding)));
+    }
   return scm_from_double (offset + avoidance_offset);
 }
 
@@ -346,14 +358,36 @@ Slur::auxiliary_acknowledge_extra_object (Grob_info const &info,
       if (slur)
 	{
 	  chain_offset_callback (e, outside_slur_callback_proc, Y_AXIS);
+	  chain_callback (e, outside_slur_cross_staff_proc, ly_symbol2scm("cross-staff"));
 	  e->set_object ("slur", slur->self_scm ());
 	}
     }
-  else
+  else if (avoid != ly_symbol2scm ("ignore"))
     e->warning (_f ("Ignoring grob for slur: %s. avoid-slur not set?",
 		    e->name().c_str ()));
 }
 
+/*
+  A callback that will be chained together with the original cross-staff
+  value of a grob that is placed 'outside or 'around a slur. This just says
+  that any grob becomes cross-staff if it is placed 'outside or 'around a
+  cross-staff slur.
+*/
+MAKE_SCHEME_CALLBACK (Slur, outside_slur_cross_staff, 2)
+SCM
+Slur::outside_slur_cross_staff (SCM smob, SCM previous)
+{
+  if (previous == SCM_BOOL_T)
+    return previous;
+
+  Grob *me = unsmob_grob (smob);
+  Grob *slur = unsmob_grob (me->get_object ("slur"));
+
+  if (!slur)
+    return SCM_BOOL_F;
+  return slur->get_property ("cross-staff");
+}
+
 MAKE_SCHEME_CALLBACK (Slur, calc_cross_staff, 1)
 SCM
 Slur::calc_cross_staff (SCM smob)
@@ -384,14 +418,13 @@ Slur::calc_cross_staff (SCM smob)
 }
 
 ADD_INTERFACE (Slur,
-	       
-	       "A slur",
+	       "A slur.",
 	       
 	       /* properties */
+	       "annotation "
 	       "avoid-slur " 	/* UGH. */
 	       "control-points "
-	       "dash-fraction "
-	       "dash-period "
+               "dash-definition "
 	       "details "
 	       "direction "
 	       "eccentricity "