2 dots.cc -- implement Dots
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "molecule.hh"
12 #include "paper-def.hh"
14 #include "staff-symbol-referencer.hh"
15 #include "directional-element-interface.hh"
18 MAKE_SCHEME_CALLBACK(Dots,quantised_position_callback,2);
20 Dots::quantised_position_callback (SCM element_smob, SCM axis)
22 Score_element *me = unsmob_element (element_smob);
23 Axis a = (Axis) gh_scm2int (axis);
26 SCM d= me->get_elt_property ("dot-count");
27 if (gh_number_p (d) && gh_scm2int (d))
29 if (!Directional_element_interface::get (me))
30 Directional_element_interface::set (me, UP);
32 if (Staff_symbol_referencer::on_staffline (me))
33 return gh_double2scm (Staff_symbol_referencer::staff_space (me) / 2.0 * Directional_element_interface::get (me));
36 return gh_double2scm (0.0);
40 MAKE_SCHEME_CALLBACK(Dots,brew_molecule,1);
42 Dots::brew_molecule (SCM d)
44 Score_element *sc = unsmob_element (d);
45 Molecule mol (sc->lookup_l ()->blank (Box (Interval (0,0),
48 SCM c = sc->get_elt_property ("dot-count");
51 Molecule d = sc->lookup_l ()->afm_find (String ("dots-dot"));
53 Real dw = d.extent (X_AXIS).length ();
54 d.translate_axis (-dw, X_AXIS);
57 for (int i = gh_scm2int (c); i--; )
59 d.translate_axis (2*dw,X_AXIS);
63 return mol.create_scheme ();