2 tie-column.cc -- implement Tie_column
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "tie-column.hh"
15 #include "paper-column.hh"
17 #include "pointer-group-interface.hh"
19 #include "directional-element-interface.hh"
20 #include "tie-column-format.hh"
21 #include "tie-formatting-problem.hh"
26 Tie_column::add_tie (Grob *me, Grob *tie)
28 if (tie->get_parent (Y_AXIS)
29 && Tie_column::has_interface (tie->get_parent (Y_AXIS)))
32 if (!Pointer_group_interface::count (me, ly_symbol2scm ("ties")))
34 dynamic_cast<Spanner *> (me)->set_bound (LEFT, Tie::head (tie, LEFT));
35 dynamic_cast<Spanner *> (me)->set_bound (RIGHT, Tie::head (tie, RIGHT));
38 tie->set_parent (me, Y_AXIS);
39 Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), tie);
43 Extend the spanner over its Tie constituents.
45 MAKE_SCHEME_CALLBACK (Tie_column, before_line_breaking, 1);
47 Tie_column::before_line_breaking (SCM smob)
49 Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (smob));
50 for (SCM s = me->get_property ("ties"); scm_is_pair (s); s = scm_cdr (s))
52 Spanner *tie = dynamic_cast<Spanner *> (unsmob_grob (scm_car (s)));
56 if (dir * tie->get_bound (dir)->get_column ()->get_rank ()
57 > dir * me->get_bound (dir)->get_column ()->get_rank ())
58 me->set_bound (dir, Tie::head (tie, dir));
60 while (flip (&dir) != LEFT);
63 return SCM_UNSPECIFIED;
66 MAKE_SCHEME_CALLBACK(Tie_column, calc_positioning_done, 1)
68 Tie_column::calc_positioning_done (SCM smob)
70 Grob *me = unsmob_grob (smob);
71 extract_grob_set (me, "ties", ro_ties);
72 Link_array<Grob> ties (ro_ties);
79 Already handled by standard mechanisms.
84 ties.sort (&Tie::compare);
86 Ties_configuration ties_config;
87 for (int i = 0; i < ties.size (); i++)
89 Tie_configuration conf;
90 if (scm_is_number (ties[i]->get_property_data (ly_symbol2scm ("direction"))))
91 conf.dir_ = get_grob_direction (ties[i]);
92 conf.position_ = Tie::get_position (ties[i]);
93 ties_config.ties_.push (conf);
96 SCM manual_configs = me->get_property ("tie-configuration");
97 bool manual_override = false;
98 set_manual_tie_configuration (&ties_config,
101 set_tie_config_directions (&ties_config);
103 Tie_formatting_problem problem;
104 problem.from_ties (ties);
107 Let the ties flow out, according to our single-tie formatting.
109 if (!manual_override)
111 Tie::get_configuration (ties[0], &ties_config.ties_.elem_ref (0),
113 Tie::get_configuration (ties.top (),
114 &ties_config.ties_.elem_ref (ties_config.ties_.size()-1),
119 Calculate final width and shape of the ties.
121 for (int i = 0; i < ties.size(); i++)
124 && (i == 0 || i == ties.size () -1))
128 final_shape_adjustment (ties_config.ties_[i],
135 Try to shift small ties into available spaces.
137 if (!manual_override)
139 shift_small_ties (&ties_config, ties[0], problem.details_);
142 for (int i = 0; i < ties.size(); i++)
144 Tie::set_control_points (ties[i], problem.common_x_refpoint (), ties_config.ties_[i],
146 set_grob_direction (ties[i], ties_config.ties_[i].dir_);
153 ADD_INTERFACE (Tie_column, "tie-column-interface",
154 "Object that sets directions of multiple ties in a tied chord",