release: 1.5.29

[lilypond.git] / lily / time-signature.cc

diff --git a/lily/time-signature.cc b/lily/time-signature.cc
index 4e3f7e2057bdcfd321d688a4d3819429617fe5e5..4a6f5929343d15419f5b05c43cc75add8dc086ea 100644 (file)
--- a/lily/time-signature.cc
+++ b/lily/time-signature.cc
@@ -3,7 +3,7 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1996--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
@@ -14,63 +14,81 @@
 #include "paper-def.hh"
 #include "font-interface.hh"
 
-MAKE_SCHEME_CALLBACK(Time_signature,brew_molecule,1);
-
+MAKE_SCHEME_CALLBACK (Time_signature,brew_molecule,1);
+/*
+  TODO: make different functions for special and normal timesigs.
+ */
 SCM
 Time_signature::brew_molecule (SCM smob) 
 {
-  Score_element * me = unsmob_element (smob);
-  SCM st = me->get_elt_property ("style");
-  SCM frac = me->get_elt_property ("fraction");
+  Grob * me = unsmob_grob (smob);
+  SCM st = me->get_grob_property ("style");
+  SCM frac = me->get_grob_property ("fraction");
   int n = 4;
   int d = 4;
   if (gh_pair_p (frac))
     {
-      n = gh_scm2int (gh_car (frac));
-      d = gh_scm2int (gh_cdr (frac));
+      n = gh_scm2int (ly_car (frac));
+      d = gh_scm2int (ly_cdr (frac));
     }
 
   
-  if (gh_string_p (st))
+  if (gh_symbol_p (st))
     {
-      String style (ly_scm2string (st));
+      String style (ly_scm2string (scm_symbol_to_string (st)));
       if (style[0]=='1')
        {
-         return time_signature (me, n, 0).create_scheme();
+         return time_signature (me, n, 0).smobbed_copy ();
        }
       else
        {
-         return special_time_signature (me, style, n, d).create_scheme();
+         return special_time_signature (me, style, n, d).smobbed_copy ();
        }
     }
   else
-    return time_signature (me, n,d).create_scheme();
+    return time_signature (me, n,d).smobbed_copy ();
 }
 
 Molecule
-Time_signature::special_time_signature (Score_element*me, String s, int n, int d)
+Time_signature::special_time_signature (Grob*me, String s, int n, int d)
 {
-  // First guess: s contains only the signature style
+  /*
+    Randomly probing the font sucks?
+  */
+  
+  SCM alist_chain = Font_interface::font_alist_chain (me);
+  
+  SCM style_chain =
+    Font_interface::add_style (me, ly_symbol2scm ("timesig-symbol"),
+                              alist_chain);
+
+  Font_metric *feta = Font_interface::get_font (me, style_chain);
+
+  /*
+    First guess: s contains only the signature style, append fraction.
+  */
   String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
   
-  Molecule m = Font_interface::get_default_font (me)->find_by_name (symbolname);
-  if (!m.empty_b()) 
+  Molecule m = feta->find_by_name (symbolname);
+  if (!m.empty_b ()) 
     return m;
 
-  // Second guess: s contains the full signature name
-  m = Font_interface::get_default_font (me)->find_by_name ("timesig-"+s);
+  /*
+    Second guess: s contains the full signature name
+  */
+  m = feta->find_by_name ("timesig-" + s);
   if (!m.empty_b ()) 
     return m;
 
   // Resort to default layout with numbers
-  return time_signature (me, n,d);
+  return time_signature (me, n, d);
 }
 
 
 Molecule
-Time_signature::time_signature (Score_element*me,int num, int den)
+Time_signature::time_signature (Grob*me,int num, int den)
 {
-  SCM chain = gh_list (me->mutable_property_alist_, me->immutable_property_alist_, SCM_UNDEFINED);
+  SCM chain = Font_interface::font_alist_chain (me);
 
   Molecule n = Text_item::text2molecule (me,
                                         ly_str02scm (to_str (num).ch_C ()),