2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2002--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "engraver.hh"
21 #include "international.hh"
23 #include "note-column.hh"
24 #include "pointer-group-interface.hh"
25 #include "side-position-interface.hh"
27 #include "stream-event.hh"
29 #include "translator.icc"
31 class Horizontal_bracket_engraver : public Engraver
34 TRANSLATOR_DECLARATIONS (Horizontal_bracket_engraver);
35 vector<Spanner *> bracket_stack_;
36 vector<Stream_event *> events_;
40 void stop_translation_timestep ();
41 void process_music ();
42 void acknowledge_note_column (Grob_info);
43 void listen_note_grouping (Stream_event *);
46 Horizontal_bracket_engraver::Horizontal_bracket_engraver ()
53 Horizontal_bracket_engraver::listen_note_grouping (Stream_event *ev)
55 Direction d = to_dir (ev->get_property ("span-direction"));
60 if (pop_count_ > bracket_stack_.size ())
61 ev->origin ()->warning (_ ("do not have that many brackets"));
66 events_.push_back (ev);
69 if (pop_count_ && push_count_)
70 ev->origin ()->warning (_ ("conflicting note group events"));
74 Horizontal_bracket_engraver::acknowledge_note_column (Grob_info gi)
76 for (vsize i = 0; i < bracket_stack_.size (); i++)
78 Side_position_interface::add_support (bracket_stack_[i], gi.grob ());
79 Pointer_group_interface::add_grob (bracket_stack_[i],
80 ly_symbol2scm ("columns"), gi.grob ());
81 add_bound_item (bracket_stack_[i],
87 Horizontal_bracket_engraver::process_music ()
89 for (vsize k = 0; k < push_count_; k++)
91 Spanner *sp = make_spanner ("HorizontalBracket", events_[k]->self_scm ());
93 for (vsize i = 0; i < bracket_stack_.size (); i++)
94 /* sp is the smallest, it should be added to the bigger brackets. */
95 Side_position_interface::add_support (bracket_stack_[i], sp);
96 bracket_stack_.push_back (sp);
101 Horizontal_bracket_engraver::stop_translation_timestep ()
103 for (vsize i = pop_count_; i--;)
104 if (bracket_stack_.size ())
105 bracket_stack_.pop_back ();
112 Horizontal_bracket_engraver::boot ()
114 ADD_LISTENER (Horizontal_bracket_engraver, note_grouping);
115 ADD_ACKNOWLEDGER (Horizontal_bracket_engraver, note_column);
118 ADD_TRANSLATOR (Horizontal_bracket_engraver,
120 "Create horizontal brackets over notes for musical analysis"
124 "HorizontalBracket ",