2 rest.cc -- implement Rest
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "paper-def.hh"
11 #include "font-interface.hh"
14 #include "paper-score.hh"
15 #include "staff-symbol-referencer.hh"
18 MAKE_SCHEME_CALLBACK(Rest,after_line_breaking,1);
20 Rest::after_line_breaking (SCM smob)
22 Grob *me = unsmob_grob (smob);
23 int bt = gh_scm2int (me->get_grob_property ("duration-log"));
26 me->translate_axis (Staff_symbol_referencer::staff_space (me) , Y_AXIS);
29 Grob * d = unsmob_grob (me->get_grob_property ("dot"));
30 if (d && bt > 4) // UGH.
32 d->set_grob_property ("staff-position",
33 gh_int2scm ((bt == 7) ? 4 : 3));
36 return SCM_UNSPECIFIED;
40 MAKE_SCHEME_CALLBACK(Rest,brew_molecule,1);
43 Rest::brew_internal_molecule (SCM smob)
45 Grob* me = unsmob_grob (smob);
49 SCM balltype = me->get_grob_property ("duration-log");
51 if (balltype == gh_int2scm (0) || balltype == gh_int2scm (1))
53 int sz = Staff_symbol_referencer::line_count (me);
54 Real dif = abs(Staff_symbol_referencer::position_f (me) - (2* gh_scm2int (balltype) - 1));
59 SCM style_sym =me->get_grob_property ("style");
60 if (gh_scm2int (balltype) >= 2 && gh_symbol_p (style_sym))
62 style = ly_scm2string (scm_symbol_to_string (style_sym));
65 String idx = ("rests-") + to_str (gh_scm2int (balltype))
66 + (ledger_b ? "o" : "") + style;
68 return Font_interface::get_default_font (me)->find_by_name (idx).smobbed_copy();
72 Rest::brew_molecule (SCM smob)
74 return brew_internal_molecule (smob);
76 MAKE_SCHEME_CALLBACK(Rest,extent_callback,2);
78 We need the callback. The real molecule has ledgers depending on
79 Y-position. The Y-position is known only after line breaking. */
81 Rest::extent_callback (SCM smob, SCM ax)
83 Axis a = (Axis) gh_scm2int (ax);
84 SCM m = brew_internal_molecule (smob);
85 return ly_interval2scm (unsmob_molecule (m)->extent (a));
89 Rest::has_interface (Grob*m)
91 return m && m->has_interface (ly_symbol2scm ("rest-interface"));