2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2002--2010 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"
22 #include "note-column.hh"
23 #include "pointer-group-interface.hh"
24 #include "side-position-interface.hh"
25 #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 DECLARE_ACKNOWLEDGER (note_column
);
43 DECLARE_TRANSLATOR_LISTENER (note_grouping
);
46 ADD_ACKNOWLEDGER (Horizontal_bracket_engraver
, note_column
);
47 ADD_TRANSLATOR (Horizontal_bracket_engraver
,
49 "Create horizontal brackets over notes for musical analysis"
62 Horizontal_bracket_engraver::Horizontal_bracket_engraver ()
68 IMPLEMENT_TRANSLATOR_LISTENER (Horizontal_bracket_engraver
, note_grouping
);
70 Horizontal_bracket_engraver::listen_note_grouping (Stream_event
*ev
)
72 Direction d
= to_dir (ev
->get_property ("span-direction"));
77 if (pop_count_
> bracket_stack_
.size ())
78 ev
->origin ()->warning (_ ("do not have that many brackets"));
83 events_
.push_back (ev
);
86 if (pop_count_
&& push_count_
)
87 ev
->origin ()->warning (_ ("conflicting note group events"));
91 Horizontal_bracket_engraver::acknowledge_note_column (Grob_info gi
)
93 for (vsize i
= 0; i
< bracket_stack_
.size (); i
++)
95 Side_position_interface::add_support (bracket_stack_
[i
], gi
.grob ());
96 Pointer_group_interface::add_grob (bracket_stack_
[i
],
97 ly_symbol2scm ("columns"), gi
.grob ());
98 add_bound_item (bracket_stack_
[i
],
104 Horizontal_bracket_engraver::process_music ()
106 for (vsize k
= 0; k
< push_count_
; k
++)
108 Spanner
*sp
= make_spanner ("HorizontalBracket", events_
[k
]->self_scm ());
110 for (vsize i
= 0; i
< bracket_stack_
.size (); i
++)
111 /* sp is the smallest, it should be added to the bigger brackets. */
112 Side_position_interface::add_support (bracket_stack_
[i
], sp
);
113 bracket_stack_
.push_back (sp
);
118 Horizontal_bracket_engraver::stop_translation_timestep ()
120 for (int i
= pop_count_
; i
--;)
121 if (bracket_stack_
.size ())
122 bracket_stack_
.pop_back ();