/*
- staffsym.cc -- implement Staff_symbol
+ staff-symbol.cc -- implement Staff_symbol
source file of the GNU LilyPond music typesetter
(c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "staff-symbol.hh"
+
#include "lookup.hh"
#include "dimensions.hh"
#include "paper-def.hh"
#include "molecule.hh"
#include "debug.hh"
#include "item.hh"
+#include "staff-symbol.hh"
+#include "spanner.hh"
-Molecule
-Staff_symbol::do_brew_molecule() const
+MAKE_SCHEME_CALLBACK(Staff_symbol,brew_molecule,1);
+
+SCM
+Staff_symbol::brew_molecule (SCM smob)
{
+ Score_element *me = unsmob_element (smob);
+ Spanner* sp = dynamic_cast<Spanner*> (me);
Score_element * common
- = get_bound (LEFT)->common_refpoint (get_bound (RIGHT), X_AXIS);
+ = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT), X_AXIS);
Real width =
// right_shift - left_shift
- + get_bound (RIGHT)->relative_coordinate (common , X_AXIS)
- - get_bound (LEFT)->relative_coordinate (common, X_AXIS)
+ + sp->get_bound (RIGHT)->relative_coordinate (common , X_AXIS)
+ - sp->get_bound (LEFT)->relative_coordinate (common, X_AXIS)
;
- Real t = paper_l ()->get_var ("stafflinethickness");
- int l = line_count ();
+ Real t = me->paper_l ()->get_var ("stafflinethickness");
+ int l = Staff_symbol::line_count (me);
- Real height = (l-1) * staff_space () /2;
- Molecule m;
+ Real height = (l-1) * staff_space (me) /2;
+ Molecule m;
for (int i=0; i < l; i++)
{
Molecule a =
- lookup_l ()->filledbox (Box (Interval (0,width),
- Interval (-t/2, t/2)));
+ Lookup::filledbox (Box (Interval (0,width),
+ Interval (-t/2, t/2)));
- a.translate_axis (height - i * staff_space (), Y_AXIS);
+ a.translate_axis (height - i * staff_space (me), Y_AXIS);
m.add_molecule (a);
}
- return m;
+ return m.create_scheme();
}
int
-Staff_symbol::steps_i() const
+Staff_symbol::steps_i(Score_element*me)
{
- return line_count () * 2;
+ return line_count (me) * 2;
}
int
-Staff_symbol::line_count () const
+Staff_symbol::line_count (Score_element*me)
{
- return gh_scm2int (get_elt_property ("line-count"));
+ SCM c = me->get_elt_property ("line-count");
+ if (gh_number_p (c))
+ return gh_scm2int (c);
+ else
+ return 0;
}
Real
-Staff_symbol::staff_space ()const
+Staff_symbol::staff_space (Score_element*me )
{
- return gh_scm2double (get_elt_property ("staff-space")) *
- paper_l ()->get_var ("staffspace");
+ Real ss = 1.0;
+
+ SCM s = me->get_elt_property ("staff-space");
+ if (gh_number_p (s))
+ ss *= gh_scm2double (s);
+ return ss;
}
-Staff_symbol::Staff_symbol( SCM s)
- : Spanner (s)
+bool
+Staff_symbol::has_interface (Score_element*m)
{
+ return m && m->has_interface (ly_symbol2scm ("staff-symbol-interface"));
}