2 notehead.cc -- implement Note_head
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "note-head.hh"
14 #include "molecule.hh"
15 #include "musical-request.hh"
16 #include "dimension-cache.hh"
17 #include "staff-symbol-referencer.hh"
22 build a ledger line for small pieces.
25 Note_head::ledger_line (Interval xwid, Score_element *me)
27 Drul_array<Molecule> endings;
28 endings[LEFT] = me->lookup_l()->afm_find ("noteheads-ledgerending");
29 Molecule *e = &endings[LEFT];
32 Real thick = e->extent (Y_AXIS).length();
33 Real len = e->extent (X_AXIS).length () - thick;
38 endings[d].translate_axis (xwid[d] - endings[d].extent (X_AXIS)[d], X_AXIS);
39 total.add_molecule (endings[d]);
40 } while ((flip(&d)) != LEFT);
42 Real xpos = xwid [LEFT] + len;
44 while (xpos + len + thick /2 <= xwid[RIGHT])
46 e->translate_axis (len, X_AXIS);
47 total.add_molecule (*e);
57 MAKE_SCHEME_SCORE_ELEMENT_CALLBACK(Note_head,brew_molecule);
60 Note_head::brew_molecule (SCM smob)
62 Score_element *me = unsmob_element (smob);
63 Staff_symbol_referencer_interface si (me);
65 Real inter_f = si.staff_space ()/2;
66 int sz = si.line_count ()-1;
67 Real p = si.position_f ();
68 int streepjes_i = abs (p) < sz
70 : (abs((int)p) - sz) /2;
72 SCM style = me->get_elt_property ("style");
73 if (style == SCM_UNDEFINED)
75 style = ly_symbol2scm("default");
78 Molecule out = me->lookup_l()->afm_find (String ("noteheads-") +
79 ly_scm2string (scm_eval (gh_list (ly_symbol2scm("find-notehead-symbol"),
80 me->get_elt_property ("duration-log"),
86 Direction dir = (Direction)sign (p);
87 Interval hd = out.extent (X_AXIS);
88 Real hw = hd.length ()/4;
89 Molecule ledger (ledger_line (Interval (hd[LEFT] - hw,
90 hd[RIGHT] + hw), me));
93 ledger.set_empty (true);
94 int parity = abs(int (p)) % 2;
96 for (int i=0; i < streepjes_i; i++)
99 s.translate_axis (-dir * inter_f * (i*2 + parity),
101 out.add_molecule (s);
104 return out.create_scheme();