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/*
dots.cc -- implement Dots
source file of the GNU LilyPond music typesetter
(c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "dots.hh"
#include "item.hh"
#include "molecule.hh"
#include "paper-def.hh"
#include "lookup.hh"
#include "staff-symbol-referencer.hh"
#include "directional-element-interface.hh"
Real
Dots::quantised_position_callback (Score_element * me, Axis a)
{
assert (a == Y_AXIS);
SCM d= me->get_elt_property ("dot-count");
if (gh_number_p (d) && gh_scm2int (d))
{
if (!Directional_element_interface::get (me))
Directional_element_interface::set (me, UP);
int pos = int (Staff_symbol_referencer::position_f (me));
if (!(pos % 2))
return Staff_symbol_referencer::staff_space (me) / 2.0 * Directional_element_interface::get (me);
}
return 0.0;
}
MAKE_SCHEME_CALLBACK(Dots,brew_molecule);
SCM
Dots::brew_molecule (SCM d)
{
Score_element *sc = unsmob_element (d);
Molecule mol (sc->lookup_l ()->blank (Box (Interval (0,0),
Interval (0,0))));
SCM c = sc->get_elt_property ("dot-count");
if (gh_number_p (c))
{
Molecule d = sc->lookup_l ()->afm_find (String ("dots-dot"));
Real dw = d.extent (X_AXIS).length ();
d.translate_axis (-dw, X_AXIS);
for (int i = gh_scm2int (c); i--; )
{
d.translate_axis (2*dw,X_AXIS);
mol.add_molecule (d);
}
}
return mol.create_scheme ();
}
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