2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--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 "axis-group-interface.hh"
26 #include "note-head.hh"
28 #include "pointer-group-interface.hh"
29 #include "side-position-interface.hh"
30 #include "stream-event.hh"
33 #include "translator.icc"
37 class Pitched_trill_engraver : public Engraver
40 TRANSLATOR_DECLARATIONS (Pitched_trill_engraver);
43 DECLARE_ACKNOWLEDGER (note_head);
44 DECLARE_ACKNOWLEDGER (dots);
45 DECLARE_ACKNOWLEDGER (stem);
46 DECLARE_ACKNOWLEDGER (flag);
47 DECLARE_ACKNOWLEDGER (trill_spanner);
48 void stop_translation_timestep ();
53 Item *trill_accidental_;
55 vector<Grob *> heads_;
57 void make_trill (Stream_event *);
60 Pitched_trill_engraver::Pitched_trill_engraver ()
64 trill_accidental_ = 0;
68 Pitched_trill_engraver::acknowledge_dots (Grob_info info)
70 heads_.push_back (info.grob ());
73 Pitched_trill_engraver::acknowledge_stem (Grob_info info)
75 heads_.push_back (info.grob ());
78 Pitched_trill_engraver::acknowledge_flag (Grob_info info)
80 heads_.push_back (info.grob ());
83 Pitched_trill_engraver::acknowledge_note_head (Grob_info info)
85 heads_.push_back (info.grob ());
89 Pitched_trill_engraver::acknowledge_trill_spanner (Grob_info info)
91 Stream_event *ev = info.event_cause ();
93 && ev->in_event_class ("trill-span-event")
94 && to_dir (ev->get_property ("span-direction")) == START
95 && unsmob<Pitch> (ev->get_property ("pitch")))
100 Pitched_trill_engraver::make_trill (Stream_event *ev)
102 SCM scm_pitch = ev->get_property ("pitch");
103 Pitch *p = unsmob<Pitch> (scm_pitch);
105 SCM keysig = get_property ("localAlterations");
107 SCM key = scm_cons (scm_from_int (p->get_octave ()),
108 scm_from_int (p->get_notename ()));
110 int bn = measure_number (context ());
112 SCM handle = scm_assoc (key, keysig);
113 if (scm_is_true (handle))
115 bool same_bar = (bn == robust_scm2int (scm_caddr (handle), 0));
117 = (p->get_alteration () == robust_scm2rational (scm_cadr (handle), 0));
119 if (!same_bar || (same_bar && !same_alt))
123 bool print_acc = scm_is_false (handle)
124 || p->get_alteration () == Rational (0)
125 || to_boolean (ev->get_property ("force-accidental"));
129 programming_error ("already have a trill head.");
133 trill_head_ = make_item ("TrillPitchHead", ev->self_scm ());
134 SCM c0scm = get_property ("middleCPosition");
136 int c0 = scm_is_number (c0scm) ? scm_to_int (c0scm) : 0;
138 trill_head_->set_property ("staff-position",
139 scm_from_int (unsmob<Pitch> (scm_pitch)->steps ()
142 trill_group_ = make_item ("TrillPitchGroup", ev->self_scm ());
143 trill_group_->set_parent (trill_head_, Y_AXIS);
145 Axis_group_interface::add_element (trill_group_, trill_head_);
149 trill_accidental_ = make_item ("TrillPitchAccidental", ev->self_scm ());
151 // fixme: naming -> alterations
152 trill_accidental_->set_property ("alteration", ly_rational2scm (p->get_alteration ()));
153 Side_position_interface::add_support (trill_accidental_, trill_head_);
155 trill_head_->set_object ("accidental-grob", trill_accidental_->self_scm ());
156 trill_accidental_->set_parent (trill_head_, Y_AXIS);
157 Axis_group_interface::add_element (trill_group_, trill_accidental_);
162 Pitched_trill_engraver::stop_translation_timestep ()
165 for (vsize i = 0; i < heads_.size (); i++)
166 Side_position_interface::add_support (trill_group_, heads_[i]);
171 trill_accidental_ = 0;
174 ADD_ACKNOWLEDGER (Pitched_trill_engraver, note_head);
175 ADD_ACKNOWLEDGER (Pitched_trill_engraver, dots);
176 ADD_ACKNOWLEDGER (Pitched_trill_engraver, stem);
177 ADD_ACKNOWLEDGER (Pitched_trill_engraver, flag);
178 ADD_ACKNOWLEDGER (Pitched_trill_engraver, trill_spanner);
180 ADD_TRANSLATOR (Pitched_trill_engraver,
182 "Print the bracketed note head after a note head with trill.",
186 "TrillPitchAccidental "