2 tuplet-engraver.cc -- implement Tuplet_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "tuplet-bracket.hh"
10 #include "note-column.hh"
12 #include "engraver.hh"
15 #include "translator.icc"
17 struct Tuplet_description
24 bool full_length_note_;
28 full_length_note_ = false;
36 class Tuplet_engraver : public Engraver
39 TRANSLATOR_DECLARATIONS (Tuplet_engraver);
42 vector<Tuplet_description> tuplets_;
43 vector<Tuplet_description> stopped_tuplets_;
44 vector<Spanner*> last_tuplets_;
45 DECLARE_ACKNOWLEDGER (note_column);
46 virtual bool try_music (Music *r);
47 virtual void finalize ();
48 void start_translation_timestep ();
49 void process_music ();
53 Tuplet_engraver::try_music (Music *music)
55 if (music->is_mus_type ("tuplet-spanner-event"))
57 Direction dir = to_dir (music->get_property ("span-direction"));
62 tuplets_.push_back (d);
66 stopped_tuplets_.push_back (tuplets_.back ());
75 Tuplet_engraver::process_music ()
77 for (vsize i = 0; i < stopped_tuplets_.size (); i++)
79 if (stopped_tuplets_[i].bracket_)
81 if (stopped_tuplets_[i].full_length_)
84 unsmob_item (stopped_tuplets_[i].full_length_note_
85 ? get_property ("currentMusicalColumn")
86 : get_property ("currentCommandColumn"));
88 stopped_tuplets_[i].bracket_->set_bound (RIGHT, col);
89 stopped_tuplets_[i].number_->set_bound (RIGHT, col);
91 else if (!stopped_tuplets_[i].bracket_->get_bound (RIGHT))
93 stopped_tuplets_[i].bracket_->set_bound (RIGHT,
94 stopped_tuplets_[i].bracket_->get_bound (LEFT));
95 stopped_tuplets_[i].number_->set_bound (RIGHT,
96 stopped_tuplets_[i].bracket_->get_bound (LEFT));
98 // todo: scrap last_tuplets_, use stopped_tuplets_ only.
99 // clear stopped_tuplets_ at start_translation_timestep
100 last_tuplets_.push_back (tuplets_[i].bracket_);
101 last_tuplets_.push_back (tuplets_[i].number_);
104 stopped_tuplets_.clear ();
106 for (vsize j = tuplets_.size (); j > 0; j--)
108 /* i goes from size-1 downto 0, inclusively */
112 if (tuplets_[i].bracket_)
115 tuplets_[i].full_length_ = to_boolean (get_property ("tupletFullLength"));
116 tuplets_[i].full_length_note_
117 = to_boolean (get_property ("tupletFullLengthNote"));
119 tuplets_[i].bracket_ = make_spanner ("TupletBracket",
120 tuplets_[i].music_->self_scm ());
121 tuplets_[i].number_ = make_spanner ("TupletNumber",
122 tuplets_[i].music_->self_scm ());
123 tuplets_[i].number_->set_object ("bracket", tuplets_[i].bracket_->self_scm ());
124 tuplets_[i].bracket_->set_object ("tuplet-number", tuplets_[i].number_->self_scm ());
126 if (i < tuplets_.size () - 1 && tuplets_[i + 1].bracket_)
127 Tuplet_bracket::add_tuplet_bracket (tuplets_[i].bracket_, tuplets_[i + 1].bracket_);
129 if (i > 0 && tuplets_[i - 1].bracket_)
130 Tuplet_bracket::add_tuplet_bracket (tuplets_[i - 1].bracket_, tuplets_[i].bracket_);
136 Tuplet_engraver::acknowledge_note_column (Grob_info inf)
138 for (vsize j = 0; j < tuplets_.size (); j++)
139 if (tuplets_[j].bracket_)
141 Item *i = dynamic_cast<Item *> (inf.grob ());
142 Tuplet_bracket::add_column (tuplets_[j].bracket_, i);
143 add_bound_item (tuplets_[j].number_, i);
148 Tuplet_engraver::start_translation_timestep ()
150 last_tuplets_.clear ();
154 Tuplet_engraver::finalize ()
156 if (to_boolean (get_property ("tupletFullLength")))
157 for (vsize i = 0; i < last_tuplets_.size (); i++)
159 Item *col = unsmob_item (get_property ("currentCommandColumn"));
160 last_tuplets_[i]->set_bound (RIGHT, col);
164 Tuplet_engraver::Tuplet_engraver ()
168 ADD_ACKNOWLEDGER (Tuplet_engraver, note_column);
169 ADD_TRANSLATOR (Tuplet_engraver,
170 /* doc */ "Catch TupletSpannerEvent and generate appropriate bracket ",
171 /* create */ "TupletBracket TupletNumber ",
172 /* accept */ "tuplet-spanner-event",
173 /* read */ "tupletFullLength ",