2 dot-column.cc -- implement Dot_column
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "dot-column.hh"
17 #include "dot-column.hh"
18 #include "rhythmic-head.hh"
19 #include "staff-symbol-referencer.hh"
20 #include "directional-element-interface.hh"
21 #include "side-position-interface.hh"
22 #include "axis-group-interface.hh"
25 #include "pointer-group-interface.hh"
26 #include "dot-configuration.hh"
29 TODO: let Dot_column communicate with stem via Note_column.
32 MAKE_SCHEME_CALLBACK (Dot_column, side_position, 1);
34 Dot_column::side_position (SCM smob)
36 Grob *me = unsmob_grob (smob);
37 extract_grob_set (me, "dots", dots);
39 for (vsize i = 0; i < dots.size (); i++)
41 Grob *head = dots[i]->get_parent (Y_AXIS);
42 Grob *stem = head ? unsmob_grob (head->get_object ("stem")) : 0;
44 && !Stem::get_beam (stem)
45 && Stem::duration_log (stem) > 2
46 && !Stem::is_invisible (stem))
49 trigger stem end & direction calculation.
51 This will add the stem to the support if a flag collision happens.
53 stem->get_property ("stem-end-position");
57 return Side_position_interface::x_aligned_side (smob, SCM_EOL);
60 MAKE_SCHEME_CALLBACK (Dot_column, calc_positioning_done, 1);
62 Dot_column::calc_positioning_done (SCM smob)
64 Grob *me = unsmob_grob (smob);
66 me->set_property ("positioning-done", SCM_BOOL_T);
69 = extract_grob_array (me, "dots");
72 Trigger note collision resolution first, since that may kill off
76 for (vsize i = dots.size (); i--;)
78 Grob *n = dots[i]->get_parent (Y_AXIS);
80 c = n->common_refpoint (c, X_AXIS);
84 for (vsize i = dots.size (); i--;)
86 Grob *n = dots[i]->get_parent (Y_AXIS);
87 n->relative_coordinate (c, X_AXIS);
91 vector_sort (dots, position_less);
92 for (vsize i = dots.size (); i--;)
93 if (!dots[i]->is_live ())
94 dots.erase (dots.begin () + i);
96 Dot_configuration cfg;
97 for (vsize i = 0;i < dots.size (); i++)
102 Grob *note = dots[i]->get_parent (Y_AXIS);
105 Grob *stem = unsmob_grob (note->get_object ("stem"));
107 dp.extremal_head_ = Stem::first_head (stem) == note;
110 int p = Staff_symbol_referencer::get_rounded_position (dp.dot_);
112 /* icky, since this should go via a Staff_symbol_referencer
113 offset callback but adding a dot overwrites Y-offset. */
114 p += (int) robust_scm2double (dp.dot_->get_property ("staff-position"), 0.0);
117 if (dp.extremal_head_)
118 dp.dir_ = to_dir (dp.dot_->get_property ("direction"));
120 cfg.remove_collision (p);
122 if (Staff_symbol_referencer::on_line (dp.dot_, p))
123 cfg.remove_collision (p);
126 for (Dot_configuration::const_iterator i (cfg.begin ());
127 i != cfg.end (); i++)
132 Staff_symbol_referencer::set_position (i->second.dot_, i->first);
138 Dot_column::add_head (Grob *me, Grob *rh)
140 Grob *d = unsmob_grob (rh->get_object ("dot"));
143 Side_position_interface::add_support (me, rh);
145 Pointer_group_interface::add_grob (me, ly_symbol2scm ("dots"), d);
146 d->set_property ("Y-offset", Grob::x_parent_positioning_proc);
147 Axis_group_interface::add_element (me, d);
151 ADD_INTERFACE (Dot_column,
153 "Groups dot objects so they form a column, and position dots so they do not "
154 "clash with staff lines ",