X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftime-signature.cc;h=8d1bb34d550eb6a5d589460f67c5d8a5a4f0dc55;hb=9806dbae3ff6491b74fce957d0574935360ea121;hp=7e18f0e05dc7d93f9535fc40403021a0b02c2623;hpb=1e7180500336cb41a34525d5f363e3828e7c51a5;p=lilypond.git

diff --git a/lily/time-signature.cc b/lily/time-signature.cc
index 7e18f0e05d..8d1bb34d55 100644
--- a/lily/time-signature.cc
+++ b/lily/time-signature.cc
@@ -1,46 +1,146 @@
-/*   
-  time-signature.cc --  implement Time_signature
-  
+/*
+  time-signature.cc -- implement Time_signature
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1996--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
 
-#include "scalar.hh"
-#include "molecule.hh"
+  (c) 1996--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
 #include "time-signature.hh"
-#include "paper-def.hh"
-#include "lookup.hh"
 
-Time_signature::Time_signature ()
+#include "text-interface.hh"
+#include "output-def.hh"
+#include "font-interface.hh"
+#include "warn.hh"
+#include "staff-symbol-referencer.hh"
+
+/*
+  TODO:
+
+  this file should go ; The formatting can completely be done with
+  markups.
+*/
+
+MAKE_SCHEME_CALLBACK (Time_signature, print, 1);
+SCM
+Time_signature::print (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
+  SCM st = me->get_property ("style");
+  SCM frac = me->get_property ("fraction");
+  int n = 4;
+  int d = 4;
+  if (scm_is_pair (frac))
+    {
+      n = scm_to_int (scm_car (frac));
+      d = scm_to_int (scm_cdr (frac));
+    }
+
+  Stencil m;
+  if (st == ly_symbol2scm ("single-digit"))
+    m = numbered_time_signature (me, n, 0);
+  else if (scm_is_symbol (st))
+    m = special_time_signature (me, st, n, d);
+  else
+    m = numbered_time_signature (me, n, d);
+
+  if (Staff_symbol_referencer::line_count (me) % 2 == 0)
+    m.translate_axis (Staff_symbol_referencer::staff_space (me) / 2, Y_AXIS);
+
+  return m.smobbed_copy ();
+}
+
+Stencil
+Time_signature::special_time_signature (Grob *me, SCM scm_style, int n, int d)
 {
-  breakable_b_ = true;
+  String style = ly_scm2string (scm_symbol_to_string (scm_style));
+
+  if (style == "numbered")
+    return numbered_time_signature (me, n, d);
+
+  if ((style == "default") || (style == ""))
+    style = to_string ("C");
+
+  if (style == "C")
+    {
+      if /* neither C2/2 nor C4/4 */
+	(((n != 2) || (d != 2))
+	 && ((n != 4) || (d != 4)))
+	return numbered_time_signature (me, n, d);
+    }
+
+  String char_name = style + to_string (n) + to_string (d);
+  me->set_property ("font-encoding", ly_symbol2scm ("fetaMusic"));
+  Stencil out = Font_interface::get_default_font (me)
+    ->find_by_name ("timesig." + char_name);
+  if (!out.is_empty ())
+    return out;
+
+  /* If there is no such symbol, we default to the numbered style.
+     (Here really with a warning!) */
+  me->warning (_f ("time signature symbol `%s' not found; "
+		   "reverting to numbered style", char_name));
+  return numbered_time_signature (me, n, d);
 }
 
-Molecule*
-Time_signature::brew_molecule_p () const
+Stencil
+Time_signature::numbered_time_signature (Grob *me, int num, int den)
 {
-  Atom s;
-  if (time_sig_type_str_.length_i ())
+  SCM chain = me->get_property_alist_chain (Font_interface::text_font_alist_chain (me));
+  chain = scm_cons (scm_list_1 (scm_cons (ly_symbol2scm ("font-encoding"),
+					  ly_symbol2scm ("fetaNumber"))),
+		    chain);
+
+  SCM sn = Text_interface::interpret_markup (me->layout ()->self_scm (), chain,
+					     scm_makfrom0str (to_string (num).to_str0 ()));
+  SCM sd = Text_interface::interpret_markup (me->layout ()->self_scm (), chain,
+					     scm_makfrom0str (to_string (den).to_str0 ()));
+
+  Stencil n = *unsmob_stencil (sn);
+  Stencil d = *unsmob_stencil (sd);
+
+  n.align_to (X_AXIS, CENTER);
+  d.align_to (X_AXIS, CENTER);
+  Stencil m;
+  if (den)
     {
-      if (time_sig_type_str_[0]=='1')
-	{
-	  Array<Scalar> tmparr=args_;
-	  tmparr[1]=Scalar(0);
-	  s = lookup_l ()->time_signature (tmparr);
-	}
-      else
-	{
-	  s = lookup_l ()-> special_time_signature (time_sig_type_str_,args_);
-	}
+      m.add_at_edge (Y_AXIS, UP, n, 0.0, 0);
+      m.add_at_edge (Y_AXIS, DOWN, d, 0.0, 0);
     }
   else
-    s = lookup_l ()->time_signature (args_);
-  s.translate_axis (-s.extent ()[Y_AXIS].center (), Y_AXIS);
-  return new Molecule (Atom (s));
-}
+    {
+      m = n;
+      m.align_to (Y_AXIS, CENTER);
+    }
 
+  m.align_to (X_AXIS, LEFT);
 
+  return m;
+}
 
-IMPLEMENT_IS_TYPE_B1(Time_signature,Item);
+ADD_INTERFACE (Time_signature, "time-signature-interface",
+	       "A time signature, in different styles.\n"
+	       "  The following values for 'style are are recognized:\n"
+	       "\n"
+	       "    @table @samp\n"
+	       "      @item @code{C}\n"
+	       "        4/4 and 2/2 are typeset as C and struck C, respectively.  All\n"
+	       "        other time signatures are written with two digits.\n"
+	       "\n"
+	       "      @item @code{neomensural}\n"
+	       "        2/2, 3/2, 2/4, 3/4, 4/4, 6/4, 9/4, 4/8, 6/8 and 9/8 are\n"
+	       "        typeset with neo-mensural style mensuration marks.  All other time\n"
+	       "        signatures are written with two digits.\n"
+	       "\n"
+	       "      @item @code{mensural}\n"
+	       "        2/2, 3/2, 2/4, 3/4, 4/4, 6/4, 9/4, 4/8, 6/8 and 9/8 are\n"
+	       "        typeset with mensural style mensuration marks.  All other time\n"
+	       "        signatures are written with two digits.\n"
+	       "\n"
+	       "      @item @code{single-digit}\n"
+	       "        All time signatures are typeset with a single\n"
+	       "        digit, e.g. 3/2 is written as 3.\n"
+	       "    @end table\n"
+	       "\n"
+	       "See also the test-file @file{input/test/time.ly}.\n",
+	       "fraction style");