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>
*/
#include "molecule.hh"
+#include "text-item.hh"
#include "time-signature.hh"
#include "paper-def.hh"
-#include "lookup.hh"
+#include "font-interface.hh"
-Time_signature::Time_signature (SCM s)
- : Item (s)
-{
-
-}
-
-// ugh.!
-MAKE_SCHEME_SCORE_ELEMENT_CALLBACKS(Time_signature)
-Molecule
-Time_signature::do_brew_molecule () const
+MAKE_SCHEME_CALLBACK (Time_signature,brew_molecule,1);
+/*
+ TODO: make different functions for special and normal timesigs.
+ */
+SCM
+Time_signature::brew_molecule (SCM smob)
{
- SCM st = get_elt_property ("style");
-
- SCM frac = 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 (n, 0);
+ return time_signature (me, n, 0).smobbed_copy ();
}
else
{
- return special_time_signature (style, n, d);
+ return special_time_signature (me, style, n, d).smobbed_copy ();
}
}
else
- return time_signature (n,d);
+ return time_signature (me, n,d).smobbed_copy ();
}
Molecule
-Time_signature::special_time_signature (String s, int n, int d) const
+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 = lookup_l ()->afm_find (symbolname, false);
- 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 = lookup_l ()->afm_find ("timesig-"+s, false);
+ /*
+ 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 (n,d);
+ return time_signature (me, n, d);
}
Molecule
-Time_signature::time_signature (int num, int den) const
+Time_signature::time_signature (Grob*me,int num, int den)
{
- String sty = "timesig";
+ SCM chain = Font_interface::font_alist_chain (me);
- /*
- 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 ()));
+ Molecule n = Text_item::text2molecule (me,
+ ly_str02scm (to_str (num).ch_C ()),
+ chain);
+ Molecule d = Text_item::text2molecule (me,
+ ly_str02scm (to_str (den).ch_C ()),
+ chain);
n.align_to (X_AXIS, CENTER);
d.align_to (X_AXIS, CENTER);
Molecule m;