release: 1.3.55

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

diff --git a/lily/time-signature.cc b/lily/time-signature.cc
index 2df4423e79c0b1aeda771849a84a1f332fce29b6..15d419a94f5a8eb104e133c2ac1f66c5cbf3b8be 100644 (file)
--- a/lily/time-signature.cc
+++ b/lily/time-signature.cc
@@ -3,40 +3,97 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1996--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
-#include "scalar.hh"
+
 #include "molecule.hh"
 #include "time-signature.hh"
 #include "paper-def.hh"
 #include "lookup.hh"
 
-Time_signature::Time_signature ()
+Time_signature::Time_signature (SCM s)
+  :  Item (s)
 {
-  breakable_b_ = true;
+
 }
 
-Molecule*
-Time_signature::do_brew_molecule_p () const
+// ugh.!
+Molecule 
+Time_signature::do_brew_molecule () const
 {
-  if (time_sig_type_str_.length_i ())
+  SCM st = get_elt_property ("style");
+
+  SCM frac = get_elt_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));
+    }
+
+  
+  if (gh_string_p (st))
     {
-      if (time_sig_type_str_[0]=='1')
+      String style (ly_scm2string (st));
+      if (style[0]=='1')
        {
-         Array<int> tmparr = args_;
-         return new Molecule( lookup_l ()->time_signature (args_[0], 0));
+         return time_signature (n, 0);
        }
       else
        {
-         return new Molecule( lookup_l ()-> special_time_signature (time_sig_type_str_ ,args_[0], args_[1]));
+         return special_time_signature (style, n, d);
        }
     }
   else
-    return new Molecule(lookup_l ()->time_signature (args_[0], args_[1]));
+    return     time_signature (n,d);
+}
+
+Molecule
+Time_signature::special_time_signature (String s, int n, int d) const
+{
+  // First guess: s contains only the signature style
+  String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
+  
+  Molecule m = lookup_l ()->afm_find (symbolname, false);
+  if (!m.empty_b()) 
+    return m;
+
+  // Second guess: s contains the full signature name
+  m = lookup_l ()->afm_find ("timesig-"+s, false);
+  if (!m.empty_b ()) 
+    return m;
+
+  // Resort to default layout with numbers
+  return time_signature (n,d);
 }
 
 
+Molecule
+Time_signature::time_signature (int num, int den) const
+{
+  String sty = "timesig";
 
+  /*
+    UGH: need to look at fontsize.
+   */
+  Molecule n (lookup_l ()->text (sty, to_str (num), paper_l ()));
+  Molecule d (lookup_l ()->text (sty, to_str (den), paper_l ()));
+  n.align_to (X_AXIS, CENTER);
+  d.align_to (X_AXIS, CENTER);
+  Molecule m;
+  if (den)
+    {
+      m.add_at_edge (Y_AXIS, UP, n, 0.0);
+      m.add_at_edge (Y_AXIS, DOWN, d, 0.0);
+    }
+  else
+    {
+      m = n;
+      m.align_to (Y_AXIS, CENTER);
+    }
+  return m;
+}