2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1998--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"
22 #include "rhythmic-head.hh"
23 #include "self-alignment-interface.hh"
24 #include "side-position-interface.hh"
26 #include "stream-event.hh"
29 #include "translator.icc"
31 class Fingering_engraver : public Engraver
33 vector<Stream_event *> events_;
34 vector<Item *> fingerings_;
37 TRANSLATOR_DECLARATIONS (Fingering_engraver);
39 void stop_translation_timestep ();
40 void process_music ();
41 void listen_fingering (Stream_event *);
42 void acknowledge_rhythmic_head (Grob_info);
43 void acknowledge_stem (Grob_info);
44 void acknowledge_flag (Grob_info);
47 void make_script (Direction, Stream_event *, int);
51 Fingering_engraver::listen_fingering (Stream_event *ev)
53 events_.push_back (ev);
57 Fingering_engraver::acknowledge_stem (Grob_info inf)
59 for (vsize i = 0; i < fingerings_.size (); i++)
60 Side_position_interface::add_support (fingerings_[i], inf.grob ());
64 Fingering_engraver::acknowledge_flag (Grob_info inf)
66 for (vsize i = 0; i < fingerings_.size (); i++)
67 Side_position_interface::add_support (fingerings_[i], inf.grob ());
71 Fingering_engraver::acknowledge_rhythmic_head (Grob_info inf)
73 for (vsize i = 0; i < fingerings_.size (); i++)
75 Grob *t = fingerings_[i];
76 Side_position_interface::add_support (t, inf.grob ());
77 if (!t->get_parent (X_AXIS))
78 t->set_parent (inf.grob (), X_AXIS);
83 Fingering_engraver::process_music ()
85 for (vsize i = events_.size (); i--;)
87 SCM dir = events_[i]->get_property ("direction");
88 make_script (to_dir (dir), events_[i], i);
93 Fingering_engraver::make_script (Direction d, Stream_event *r, int i)
95 Item *fingering = make_item ("Fingering", r->self_scm ());
98 Huh, what's this for? --hwn.
102 SCM pitch = r->get_property ("pitch");
103 if (unsmob<Pitch> (pitch))
104 fingering->set_property ("pitch", pitch);
107 We can't fold these definitions into define-grobs since
108 fingerings for chords need different settings.
110 Side_position_interface::set_axis (fingering, Y_AXIS);
111 Self_alignment_interface::set_aligned_on_parent (fingering, X_AXIS);
115 SCM s = fingering->get_property ("script-priority");
116 if (scm_is_number (s))
117 priority = scm_to_int (s);
119 /* See script-engraver.cc */
122 fingering->set_property ("script-priority", scm_from_int (priority));
125 fingering->set_property ("direction", scm_from_int (d));
126 else if (!is_direction (fingering->get_property_data ("direction")))
127 fingering->set_property ("direction", scm_from_int (UP));
129 fingerings_.push_back (fingering);
133 Fingering_engraver::stop_translation_timestep ()
135 fingerings_.clear ();
139 Fingering_engraver::Fingering_engraver ()
145 Fingering_engraver::boot ()
147 ADD_LISTENER (Fingering_engraver, fingering);
148 ADD_ACKNOWLEDGER (Fingering_engraver, rhythmic_head);
149 ADD_ACKNOWLEDGER (Fingering_engraver, stem);
150 ADD_ACKNOWLEDGER (Fingering_engraver, flag);
153 ADD_TRANSLATOR (Fingering_engraver,
155 "Create fingering scripts.",