-/*
- time-signature.cc -- implement Time_signature
-
+/*
+ time-signature.cc -- implement Time_signature
+
source file of the GNU LilyPond music typesetter
-
- (c) 1996--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+ (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
-#include "molecule.hh"
#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)
{
- set_elt_property ("breakable", SCM_BOOL_T);
+ 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 ();
}
-Molecule*
-Time_signature::do_brew_molecule_p () const
+Stencil
+Time_signature::special_time_signature (Grob *me, SCM scm_style, int n, int d)
{
- SCM st = get_elt_property ("style");
-
- if (gh_string_p (st))
+ 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")
{
- String style (ly_scm2string (st));
- if (style[0]=='1')
- {
- Array<int> tmparr = args_;
- return new Molecule( lookup_l ()->time_signature (args_[0], 0, paper_l ()));
- }
- else
- {
- return new Molecule( lookup_l ()-> special_time_signature (style, args_[0], args_[1], paper_l ()));
- }
+ if /* neither C2/2 nor C4/4 */
+ (((n != 2) || (d != 2))
+ && ((n != 4) || (d != 4)))
+ return numbered_time_signature (me, n, d);
}
- else
- return new Molecule(lookup_l ()->time_signature (args_[0], args_[1],paper_l ()));
+
+ 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);
}
+Stencil
+Time_signature::numbered_time_signature (Grob *me, int num, int den)
+{
+ 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).c_str ()));
+ SCM sd = Text_interface::interpret_markup (me->layout ()->self_scm (), chain,
+ scm_makfrom0str (to_string (den).c_str ()));
+
+ 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)
+ {
+ m.add_at_edge (Y_AXIS, UP, n, 0.0, 0);
+ m.add_at_edge (Y_AXIS, DOWN, d, 0.0, 0);
+ }
+ else
+ {
+ m = n;
+ m.align_to (Y_AXIS, CENTER);
+ }
+ m.align_to (X_AXIS, LEFT);
+ return m;
+}
+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");
projects / lilypond.git / blobdiff