Issue 5167/6: Changes: show \markup xxx = ... \etc assignments

[lilypond.git] / lily / percent-repeat-item.cc

diff --git a/lily/percent-repeat-item.cc b/lily/percent-repeat-item.cc
index 4c87351d26fae0272cdba8846f9d2bb9f4c718c1..6799abc9ca18f253f31be362cc455553f253df59 100644 (file)
--- a/lily/percent-repeat-item.cc
+++ b/lily/percent-repeat-item.cc
@@ -1,85 +1,103 @@
-/*   
-  percent-repeat-item.cc --  implement Percent_repeat_item_interface
-  
-  source file of the GNU LilyPond music typesetter
-  
-  (c) 2001--2003  Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
-#include <math.h>
-
-#include "grob.hh"
-#include "lookup.hh"
-#include "molecule.hh"
-#include "font-interface.hh"
-#include "font-metric.hh" 
+/*
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (C) 2001--2015  Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+  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 "percent-repeat-item.hh"
 
+#include "item.hh"
+#include "font-interface.hh"
+#include "lookup.hh"
+#include "stream-event.hh"
 
-Molecule
-Percent_repeat_item_interface::brew_slash ( Grob *me)
+Stencil
+Percent_repeat_item_interface::brew_slash (Grob *me, int count)
 {
-  Real slope = robust_scm2double (me->get_grob_property ("slope"), 1);
+  Real slope = robust_scm2double (me->get_property ("slope"), 1);
   Real wid = 2.0 / slope;
 
   /*
     todo: check out if in staff-rule thickness normally.
-   */
-  Real thick = robust_scm2double (me->get_grob_property ("thickness"), 1);
-  Molecule m = Lookup::repeat_slash (wid, slope, thick);
+  */
+  Real thick = robust_scm2double (me->get_property ("thickness"), 1);
+  Stencil slash = Lookup::repeat_slash (wid, slope, thick);
+  Stencil m = slash;
+
+  Real slash_neg_kern
+    = robust_scm2double (me->get_property ("slash-negative-kern"), 1.6);
+  for (int i = count - 1; i--;)
+    m.add_at_edge (X_AXIS, RIGHT, slash, -slash_neg_kern);
+
   m.translate_axis (-m.extent (Y_AXIS).center (), Y_AXIS);
   return m;
 }
 
-/*
-  todo: use grob props for dot_neg_kern, slash_neg_kern?
- */
-Molecule
-Percent_repeat_item_interface::x_percent (Grob *me, int count,
-                                         Real dot_neg_kern,
-                                         Real slash_neg_kern)
+Stencil
+Percent_repeat_item_interface::x_percent (Grob *me, int count)
 {
-  Molecule m ;
-  Molecule s = brew_slash (me);
-
-  for (int i  = count; i--;)
-    {
-      m.add_at_edge (X_AXIS, RIGHT, s, -slash_neg_kern,0);
-    }
-  Molecule d1 = Font_interface::get_default_font (me)->find_by_name ("dots-dot");
-  Molecule d2  =  d1;
-  d1.translate_axis (0.5, Y_AXIS );
+  Stencil m = brew_slash (me, count);
+
+  Real dot_neg_kern
+    = robust_scm2double (me->get_property ("dot-negative-kern"), 0.75);
+
+  Stencil d1 = Font_interface::get_default_font (me)->find_by_name ("dots.dot");
+  Stencil d2 = d1;
+  d1.translate_axis (0.5, Y_AXIS);
   d2.translate_axis (-0.5, Y_AXIS);
-  
-  m.add_at_edge (X_AXIS, LEFT, d1, -dot_neg_kern,0);
-  m.add_at_edge (X_AXIS, RIGHT, d2, -dot_neg_kern,0);
+
+  m.add_at_edge (X_AXIS, LEFT, d1, -dot_neg_kern);
+  m.add_at_edge (X_AXIS, RIGHT, d2, -dot_neg_kern);
 
   return m;
 }
 
-MAKE_SCHEME_CALLBACK(Percent_repeat_item_interface,double_percent,1);
+MAKE_SCHEME_CALLBACK (Percent_repeat_item_interface, double_percent, 1);
 SCM
 Percent_repeat_item_interface::double_percent (SCM grob)
 {
-  Grob *me = unsmob_grob (grob);
-  Molecule m = x_percent (me, 2, 0.75, 1.6);
-  m.translate_axis (- m.extent (X_AXIS).center (), X_AXIS);
+  Grob *me = unsmob<Grob> (grob);
+  Stencil m = x_percent (me, 2);
+  m.translate_axis (-m.extent (X_AXIS).center (), X_AXIS);
   return m.smobbed_copy ();
 }
 
-MAKE_SCHEME_CALLBACK(Percent_repeat_item_interface,beat_slash,1);
+MAKE_SCHEME_CALLBACK (Percent_repeat_item_interface, beat_slash, 1);
 SCM
 Percent_repeat_item_interface::beat_slash (SCM grob)
 {
-  Grob *me = unsmob_grob (grob);
-  Molecule m = brew_slash (me);
+  Grob *me = unsmob<Grob> (grob);
+  Stream_event *cause = unsmob<Stream_event> (me->get_property ("cause"));
+  int count = robust_scm2int (cause->get_property ("slash-count"), 1);
+
+  Stencil m;
+  if (count == 0)
+    m = x_percent (me, 2);
+  else
+    m = brew_slash (me, count);
 
   return m.smobbed_copy ();
 }
 
-ADD_INTERFACE (Percent_repeat_item_interface,"percent-repeat-interface",
-  "Repeats that look like percent signs",
-  "slope thickness");
-
-
+ADD_INTERFACE (Percent_repeat_item_interface,
+               "Repeats that look like percent signs.",
 
+               /* properties */
+               "dot-negative-kern "
+               "slash-negative-kern "
+               "slope "
+               "thickness "
+              );