2 note-column.cc -- implement Note_column
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include <math.h> // ceil
10 #include "axis-group-interface.hh"
11 #include "note-column.hh"
14 #include "paper-def.hh"
15 #include "group-interface.hh"
16 #include "staff-symbol-referencer.hh"
18 #include "note-head.hh"
21 Note_column::rest_b (Grob*me)
23 return unsmob_grob (me->get_grob_property ("rest"));
27 Note_column::shift_compare (Grob *const &p1, Grob *const&p2)
29 SCM s1 = p1->get_grob_property ("horizontal-shift");
30 SCM s2 = p2->get_grob_property ("horizontal-shift");
32 int h1 = (gh_number_p (s1))? gh_scm2int (s1) :0;
33 int h2 = (gh_number_p (s2)) ? gh_scm2int (s2):0;
38 Note_column::set_interface (Grob* me)
40 me->set_interface (ly_symbol2scm ("note-column-interface"));
42 Axis_group_interface::set_interface (me);
43 Axis_group_interface::set_axes (me, X_AXIS, Y_AXIS);
47 Note_column::stem_l (Grob*me)
49 SCM s = me->get_grob_property ("stem");
50 return unsmob_item (s);
54 Note_column::head_positions_interval (Grob *me)
60 SCM h = me->get_grob_property ("note-heads");
61 for (; gh_pair_p (h); h = ly_cdr (h))
63 Grob *se = unsmob_grob (ly_car (h));
65 int j = int (Staff_symbol_referencer::position_f (se));
66 iv.unite (Slice (j,j));
72 Note_column::dir (Grob* me)
74 Grob *stem = unsmob_grob (me->get_grob_property ("stem"));
75 if (stem && Stem::has_interface (stem))
76 return Stem::get_direction (stem);
77 else if (gh_pair_p (me->get_grob_property ("note-heads")))
78 return (Direction)sign (head_positions_interval (me).center ());
80 programming_error ("Note column without heads and stem!");
86 Note_column::set_stem (Grob*me,Grob * stem_l)
88 me->set_grob_property ("stem", stem_l->self_scm ());
89 me->add_dependency (stem_l);
90 Axis_group_interface::add_element (me, stem_l);
94 Note_column::add_head (Grob*me,Grob *h)
96 if (Rest::has_interface (h))
98 me->set_grob_property ("rest", h->self_scm ());
100 else if (Note_head::has_interface (h))
102 Pointer_group_interface::add_grob (me, ly_symbol2scm ("note-heads"),h);
104 Axis_group_interface::add_element (me, h);
108 translate the rest symbols vertically by amount DY_I.
111 Note_column::translate_rests (Grob*me,int dy_i)
113 Grob * r = unsmob_grob (me->get_grob_property ("rest"));
116 r->translate_axis (dy_i * Staff_symbol_referencer::staff_space (r)/2.0, Y_AXIS);
122 Note_column::set_dotcol (Grob*me,Grob *d)
124 Axis_group_interface::add_element (me, d);
131 Note_column::first_head (Grob*me)
133 Grob * st = stem_l (me);
134 return st? Stem::first_head (st): 0;
138 Note_column::has_interface (Grob*me)
140 return me && me->has_interface (ly_symbol2scm ("note-column-interface"));
144 Return the first Accidentals grob that we find in a note-head.
147 Note_column::accidentals (Grob *me)
149 SCM heads = me->get_grob_property ("note-heads");
150 for (;gh_pair_p (heads); heads =gh_cdr (heads))
152 Grob * h = unsmob_grob (gh_car (heads));
153 Grob *a = h ? unsmob_grob(h->get_grob_property ("accidentals")) : 0;