2 notehead.cc -- implement Note_head
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "note-head.hh"
13 #include <algorithm> // min, max
16 #include "directional-element-interface.hh"
18 #include "font-interface.hh"
19 #include "international.hh"
23 #include "output-def.hh"
24 #include "rhythmic-head.hh"
25 #include "staff-symbol-referencer.hh"
26 #include "staff-symbol.hh"
30 internal_print (Grob *me, string *font_char)
32 SCM style = me->get_property ("style");
33 if (!scm_is_symbol (style))
34 style = ly_symbol2scm ("default");
36 string suffix = to_string (min (robust_scm2int (me->get_property ("duration-log"), 2), 2));
37 if (style != ly_symbol2scm ("default"))
39 SCM gn = me->get_property ("glyph-name");
40 if (scm_is_string (gn))
41 suffix = ly_scm2string (gn);
44 Font_metric *fm = Font_interface::get_default_font (me);
49 idx_symmetric = idx_either = "noteheads.s" + suffix;
50 Stencil out = fm->find_by_name (idx_symmetric);
53 string prefix = "noteheads.";
55 Grob *stem = unsmob_grob (me->get_object ("stem"));
56 Direction stem_dir = stem ? get_grob_direction (stem) : CENTER;
58 if (stem_dir == CENTER)
59 programming_error ("must have stem dir for note head");
61 idx_directed = idx_either =
62 prefix + ((stem_dir == UP) ? "u" : "d") + suffix;
63 out = fm->find_by_name (idx_directed);
69 me->warning (_f ("none of note heads `%s' or `%s' found",
70 idx_symmetric.c_str (), idx_directed.c_str ()));
71 out = Stencil (Box (Interval (0, 0), Interval (0, 0)), SCM_EOL);
74 *font_char = idx_either;
80 TODO: make stem X-parent of notehead.
82 MAKE_SCHEME_CALLBACK (Note_head, stem_x_shift, 1);
84 Note_head::stem_x_shift (SCM smob)
86 Grob *me = unsmob_grob (smob);
87 Grob *stem = unsmob_grob (me->get_object ("stem"));
89 (void) stem->get_property ("positioning-done");
91 return scm_from_int (0);
94 MAKE_SCHEME_CALLBACK (Note_head, print, 1);
96 Note_head::print (SCM smob)
98 Grob *me = unsmob_grob (smob);
101 return internal_print (me, &idx).smobbed_copy ();
105 Note_head::stem_attachment_coordinate (Grob *me, Axis a)
107 Offset off = robust_scm2offset (me->get_property ("stem-attachment"),
114 Note_head::get_stem_attachment (Font_metric *fm, string key)
118 int k = fm->name_to_index (key);
121 Box b = fm->get_indexed_char (k);
122 Offset wxwy = fm->attachment_point (key);
123 for (int i = X_AXIS ; i < NO_AXES; i++)
130 att[a] = (2 * (wxwy[a] - v.center ()) / v.length ());
138 MAKE_SCHEME_CALLBACK(Note_head, calc_stem_attachment, 1);
140 Note_head::calc_stem_attachment (SCM smob)
142 Grob *me = unsmob_grob (smob);
143 Font_metric *fm = Font_interface::get_default_font (me);
145 internal_print (me, &key);
147 return ly_offset2scm (get_stem_attachment (fm, key));
151 Note_head::get_balltype (Grob *me)
153 SCM s = me->get_property ("duration-log");
154 return scm_is_number (s) ? min (int (scm_to_int (s)), 2) : 0;
157 ADD_INTERFACE (Note_head, "note-head-interface",