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>
10 #include "engraver.hh"
11 #include "international.hh"
12 #include "note-column.hh"
14 #include "stream-event.hh"
15 #include "tuplet-bracket.hh"
18 #include "translator.icc"
20 struct Tuplet_description
27 bool full_length_note_;
32 full_length_note_ = false;
39 class Tuplet_engraver : public Engraver
42 TRANSLATOR_DECLARATIONS (Tuplet_engraver);
45 vector<Tuplet_description> tuplets_;
46 vector<Tuplet_description> stopped_tuplets_;
47 vector<Spanner*> last_tuplets_;
48 DECLARE_ACKNOWLEDGER (note_column);
49 DECLARE_TRANSLATOR_LISTENER (tuplet_span);
50 virtual void finalize ();
51 void start_translation_timestep ();
52 void process_music ();
55 IMPLEMENT_TRANSLATOR_LISTENER (Tuplet_engraver, tuplet_span);
57 Tuplet_engraver::listen_tuplet_span (Stream_event *ev)
59 Direction dir = to_dir (ev->get_property ("span-direction"));
64 tuplets_.push_back (d);
66 else if (dir == STOP && tuplets_.size ())
68 stopped_tuplets_.push_back (tuplets_.back ());
72 programming_error (_ ("invalid direction of tuplet-span-event"));
76 Tuplet_engraver::process_music ()
78 for (vsize i = 0; i < stopped_tuplets_.size (); i++)
80 if (stopped_tuplets_[i].bracket_)
82 if (stopped_tuplets_[i].full_length_)
85 unsmob_item (stopped_tuplets_[i].full_length_note_
86 ? get_property ("currentMusicalColumn")
87 : get_property ("currentCommandColumn"));
89 stopped_tuplets_[i].bracket_->set_bound (RIGHT, col);
90 stopped_tuplets_[i].number_->set_bound (RIGHT, col);
92 else if (!stopped_tuplets_[i].bracket_->get_bound (RIGHT))
94 stopped_tuplets_[i].bracket_->set_bound (RIGHT,
95 stopped_tuplets_[i].bracket_->get_bound (LEFT));
96 stopped_tuplets_[i].number_->set_bound (RIGHT,
97 stopped_tuplets_[i].bracket_->get_bound (LEFT));
99 // todo: scrap last_tuplets_, use stopped_tuplets_ only.
100 // clear stopped_tuplets_ at start_translation_timestep
101 last_tuplets_.push_back (tuplets_[i].bracket_);
102 last_tuplets_.push_back (tuplets_[i].number_);
105 stopped_tuplets_.clear ();
107 for (vsize j = tuplets_.size (); j > 0; j--)
109 /* i goes from size-1 downto 0, inclusively */
113 if (tuplets_[i].bracket_)
116 tuplets_[i].full_length_ = to_boolean (get_property ("tupletFullLength"));
117 tuplets_[i].full_length_note_
118 = to_boolean (get_property ("tupletFullLengthNote"));
120 tuplets_[i].bracket_ = make_spanner ("TupletBracket",
121 tuplets_[i].event_->self_scm ());
122 tuplets_[i].number_ = make_spanner ("TupletNumber",
123 tuplets_[i].event_->self_scm ());
124 tuplets_[i].number_->set_object ("bracket", tuplets_[i].bracket_->self_scm ());
125 tuplets_[i].bracket_->set_object ("tuplet-number", tuplets_[i].number_->self_scm ());
127 if (i < tuplets_.size () - 1 && tuplets_[i + 1].bracket_)
128 Tuplet_bracket::add_tuplet_bracket (tuplets_[i].bracket_, tuplets_[i + 1].bracket_);
130 if (i > 0 && tuplets_[i - 1].bracket_)
131 Tuplet_bracket::add_tuplet_bracket (tuplets_[i - 1].bracket_, tuplets_[i].bracket_);
137 Tuplet_engraver::acknowledge_note_column (Grob_info inf)
139 for (vsize j = 0; j < tuplets_.size (); j++)
140 if (tuplets_[j].bracket_)
142 Item *i = dynamic_cast<Item *> (inf.grob ());
143 Tuplet_bracket::add_column (tuplets_[j].bracket_, i);
144 add_bound_item (tuplets_[j].number_, i);
149 Tuplet_engraver::start_translation_timestep ()
151 last_tuplets_.clear ();
155 Tuplet_engraver::finalize ()
157 if (to_boolean (get_property ("tupletFullLength")))
158 for (vsize i = 0; i < last_tuplets_.size (); i++)
160 Item *col = unsmob_item (get_property ("currentCommandColumn"));
161 last_tuplets_[i]->set_bound (RIGHT, col);
165 Tuplet_engraver::Tuplet_engraver ()
169 ADD_ACKNOWLEDGER (Tuplet_engraver, note_column);
170 ADD_TRANSLATOR (Tuplet_engraver,
171 /* doc */ "Catch TupletSpannerEvent and generate appropriate bracket ",
177 "tupletFullLengthNote ",