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"
33 class Fingering_engraver : public Engraver
35 vector<Stream_event *> events_;
36 vector<Item *> fingerings_;
39 TRANSLATOR_DECLARATIONS (Fingering_engraver);
41 void stop_translation_timestep ();
42 void process_music ();
43 DECLARE_TRANSLATOR_LISTENER (fingering);
44 DECLARE_ACKNOWLEDGER (rhythmic_head);
45 DECLARE_ACKNOWLEDGER (stem);
46 DECLARE_ACKNOWLEDGER (flag);
49 void make_script (Direction, Stream_event *, int);
52 IMPLEMENT_TRANSLATOR_LISTENER (Fingering_engraver, fingering);
54 Fingering_engraver::listen_fingering (Stream_event *ev)
56 events_.push_back (ev);
60 Fingering_engraver::acknowledge_stem (Grob_info inf)
62 for (vsize i = 0; i < fingerings_.size (); i++)
63 Side_position_interface::add_support (fingerings_[i], inf.grob ());
67 Fingering_engraver::acknowledge_flag (Grob_info inf)
69 for (vsize i = 0; i < fingerings_.size (); i++)
70 Side_position_interface::add_support (fingerings_[i], inf.grob ());
74 Fingering_engraver::acknowledge_rhythmic_head (Grob_info inf)
76 for (vsize i = 0; i < fingerings_.size (); i++)
78 Grob *t = fingerings_[i];
79 Side_position_interface::add_support (t, inf.grob ());
80 if (!t->get_parent (X_AXIS))
81 t->set_parent (inf.grob (), X_AXIS);
86 Fingering_engraver::process_music ()
88 for (vsize i = events_.size (); i--;)
90 SCM dir = events_[i]->get_property ("direction");
91 make_script (to_dir (dir), events_[i], i);
96 Fingering_engraver::make_script (Direction d, Stream_event *r, int i)
98 Item *fingering = make_item ("Fingering", r->self_scm ());
101 Huh, what's this for? --hwn.
105 SCM pitch = r->get_property ("pitch");
106 if (unsmob<Pitch> (pitch))
107 fingering->set_property ("pitch", pitch);
110 We can't fold these definitions into define-grobs since
111 fingerings for chords need different settings.
113 Side_position_interface::set_axis (fingering, Y_AXIS);
114 Self_alignment_interface::set_aligned_on_parent (fingering, X_AXIS);
118 SCM s = fingering->get_property ("script-priority");
119 if (scm_is_number (s))
120 priority = scm_to_int (s);
122 /* See script-engraver.cc */
125 fingering->set_property ("script-priority", scm_from_int (priority));
128 fingering->set_property ("direction", scm_from_int (d));
129 else if (!is_direction (fingering->get_property_data ("direction")))
130 fingering->set_property ("direction", scm_from_int (UP));
132 fingerings_.push_back (fingering);
136 Fingering_engraver::stop_translation_timestep ()
138 fingerings_.clear ();
142 Fingering_engraver::Fingering_engraver ()
146 ADD_ACKNOWLEDGER (Fingering_engraver, rhythmic_head);
147 ADD_ACKNOWLEDGER (Fingering_engraver, stem);
148 ADD_ACKNOWLEDGER (Fingering_engraver, flag);
150 ADD_TRANSLATOR (Fingering_engraver,
152 "Create fingering scripts.",