source file of the GNU LilyPond music typesetter
- (c) 1996--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "paper-def.hh"
#include "lookup.hh"
-Time_signature::Time_signature ()
-{
- set_elt_property ("breakable", SCM_BOOL_T);
-}
+MAKE_SCHEME_CALLBACK(Time_signature,brew_molecule);
-Molecule*
-Time_signature::do_brew_molecule_p () const
+SCM
+Time_signature::brew_molecule (SCM smob)
{
- SCM st = get_elt_property ("style");
+ Score_element * me = unsmob_element (smob);
+ SCM st = me->get_elt_property ("style");
+ SCM frac = me->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 (st != SCM_UNDEFINED)
+ if (gh_string_p (st))
{
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 ()));
+ return time_signature (me, n, 0).create_scheme();
}
else
{
- return new Molecule( lookup_l ()-> special_time_signature (style, args_[0], args_[1], paper_l ()));
+ return special_time_signature (me, style, n, d).create_scheme();
}
}
else
- return new Molecule(lookup_l ()->time_signature (args_[0], args_[1],paper_l ()));
+ return time_signature (me, n,d).create_scheme();
}
+Molecule
+Time_signature::special_time_signature (Score_element*me, String s, int n, int d)
+{
+ // First guess: s contains only the signature style
+ String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
+
+ Molecule m = me->lookup_l ()->afm_find (symbolname, false);
+ if (!m.empty_b())
+ return m;
+ // Second guess: s contains the full signature name
+ m = me->lookup_l ()->afm_find ("timesig-"+s, false);
+ if (!m.empty_b ())
+ return m;
+
+ // Resort to default layout with numbers
+ return time_signature (me, n,d);
+}
+Molecule
+Time_signature::time_signature (Score_element*me,int num, int den)
+{
+ String sty = "timesig";
+
+ /*
+ UGH: need to look at fontsize.
+ */
+ Molecule n (me->lookup_l ()->text (sty, to_str (num), me->paper_l ()));
+ Molecule d (me->lookup_l ()->text (sty, to_str (den), me->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;
+}