protected:
void process_music ();
void start_translation_timestep ();
- DECLARE_TRANSLATOR_LISTENER (multi_measure_rest);
- DECLARE_TRANSLATOR_LISTENER (multi_measure_text);
+ void listen_multi_measure_rest (Stream_event *);
+ void listen_multi_measure_text (Stream_event *);
private:
void add_bound_item_to_grobs (Item *);
void clear_lapsed_events (const Moment &now);
+ bool grobs_initialized () const { return mmrest_; }
+ void initialize_grobs ();
+ void reset_grobs ();
+ void set_measure_count (int n);
private:
- Stream_event *rest_ev_;
vector<Stream_event *> text_events_;
- int start_measure_;
- Moment stop_moment_;
-
- bool first_time_;
- // Ugh, this is a kludge - need this for multi-measure-rest-grace.ly
- Item *last_command_item_;
- Spanner *mmrest_;
-
// text_[0] is a MultiMeasureRestNumber grob
// the rest are optional MultiMeasureRestText grobs
vector<Spanner *> text_;
+ Stream_event *rest_ev_;
+ Spanner *mmrest_;
+ Moment stop_moment_;
+ int start_measure_;
+ // Ugh, this is a kludge - need this for multi-measure-rest-grace.ly
+ Item *last_command_item_;
+ bool first_time_;
};
-Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
+Multi_measure_rest_engraver::Multi_measure_rest_engraver (Context *c)
+ : Engraver (c),
+ rest_ev_ (0),
+ mmrest_ (0),
+ start_measure_ (0),
+ last_command_item_ (0),
+ first_time_ (true)
{
- last_command_item_ = 0;
-
- /*
- For the start of a score.
- */
- first_time_ = true;
- start_measure_ = 0;
- mmrest_ = 0;
- rest_ev_ = 0;
}
-IMPLEMENT_TRANSLATOR_LISTENER (Multi_measure_rest_engraver, multi_measure_rest);
void
Multi_measure_rest_engraver::listen_multi_measure_rest (Stream_event *ev)
{
clear_lapsed_events (now);
}
-IMPLEMENT_TRANSLATOR_LISTENER (Multi_measure_rest_engraver, multi_measure_text);
void
Multi_measure_rest_engraver::listen_multi_measure_text (Stream_event *ev)
{
}
void
-Multi_measure_rest_engraver::process_music ()
+Multi_measure_rest_engraver::initialize_grobs ()
{
- const bool measure_end
- = scm_is_string (get_property ("whichBar"))
- && (robust_scm2moment (get_property ("measurePosition"),
- Moment (0)).main_part_ == Rational (0));
-
- if (measure_end || first_time_)
- {
- last_command_item_ = unsmob<Item> (get_property ("currentCommandColumn"));
- }
+ mmrest_ = make_spanner ("MultiMeasureRest", rest_ev_->self_scm ());
+ text_.push_back (make_spanner ("MultiMeasureRestNumber",
+ mmrest_->self_scm ()));
- // Finalize the current grobs.
- if (measure_end && mmrest_)
+ if (text_events_.size ())
{
- // Set the measure count now that it is known.
- int cur = scm_to_int (get_property ("internalBarNumber"));
- int num = cur - start_measure_;
- SCM num_scm (scm_from_int (num));
-
- mmrest_->set_property ("measure-count", num_scm);
+ for (vsize i = 0; i < text_events_.size (); i++)
+ {
+ Stream_event *e = text_events_[i];
+ Spanner *sp = make_spanner ("MultiMeasureRestText", e->self_scm ());
+ SCM t = e->get_property ("text");
+ SCM dir = e->get_property ("direction");
+ sp->set_property ("text", t);
+ if (is_direction (dir))
+ sp->set_property ("direction", dir);
+
+ text_.push_back (sp);
+ }
- assert (!text_.empty ());
- Grob *g = text_[0];
- assert (g);
- if (scm_is_null (g->get_property ("text")))
+ /*
+ Stack different scripts.
+ */
+ for (DOWN_and_UP (d))
{
- SCM thres = get_property ("restNumberThreshold");
- int t = 1;
- if (scm_is_number (thres))
- t = scm_to_int (thres);
-
- if (num <= t)
- g->suicide ();
- else
+ SCM dir = scm_from_int (d);
+ Grob *last = 0;
+ for (vsize i = 0; i < text_.size (); i++)
{
- SCM text
- = scm_number_to_string (num_scm, scm_from_int (10));
- g->set_property ("text", text);
+ if (ly_is_equal (dir, text_[i]->get_property ("direction")))
+ {
+ if (last)
+ Side_position_interface::add_support (text_[i], last);
+ last = text_[i];
+ }
}
}
-
- if (last_command_item_)
- add_bound_item_to_grobs (last_command_item_);
-
- mmrest_ = 0;
- text_.clear ();
}
- // Create new grobs if a rest event is (still) active.
- if (rest_ev_ && !mmrest_)
+ for (vsize i = 0; i < text_.size (); i++)
{
- mmrest_ = make_spanner ("MultiMeasureRest", rest_ev_->self_scm ());
+ Side_position_interface::add_support (text_[i], mmrest_);
+ text_[i]->set_parent (mmrest_, Y_AXIS);
+ text_[i]->set_parent (mmrest_, X_AXIS);
+ }
+}
- Spanner *sp
- = make_spanner ("MultiMeasureRestNumber", rest_ev_->self_scm ());
- text_.push_back (sp);
+void
+Multi_measure_rest_engraver::reset_grobs ()
+{
+ text_.clear ();
+ mmrest_ = 0;
+}
- if (text_events_.size ())
- {
- for (vsize i = 0; i < text_events_.size (); i++)
- {
- Stream_event *e = text_events_[i];
- Spanner *sp
- = make_spanner ("MultiMeasureRestText", e->self_scm ());
- SCM t = e->get_property ("text");
- SCM dir = e->get_property ("direction");
- sp->set_property ("text", t);
- if (is_direction (dir))
- sp->set_property ("direction", dir);
-
- text_.push_back (sp);
- }
+void
+Multi_measure_rest_engraver::set_measure_count (int n)
+{
+ SCM n_scm = scm_from_int (n);
+ assert (mmrest_);
+ mmrest_->set_property ("measure-count", n_scm);
- /*
- Stack different scripts.
- */
- for (DOWN_and_UP (d))
- {
- Grob *last = 0;
- for (vsize i = 0; i < text_.size (); i++)
- {
- if (scm_is_eq (scm_from_int (d),
- text_[i]->get_property ("direction")))
- {
- if (last)
- Side_position_interface::add_support (text_[i], last);
- last = text_[i];
- }
- }
- }
+ Grob *g = text_[0]; // the MultiMeasureRestNumber
+ assert (g);
+ if (scm_is_null (g->get_property ("text")))
+ {
+ SCM thres = get_property ("restNumberThreshold");
+ int t = 1;
+ if (scm_is_number (thres))
+ t = scm_to_int (thres);
+
+ if (n <= t)
+ g->suicide ();
+ else
+ {
+ SCM text = scm_number_to_string (n_scm, scm_from_int (10));
+ g->set_property ("text", text);
}
+ }
+}
- for (vsize i = 0; i < text_.size (); i++)
+void
+Multi_measure_rest_engraver::process_music ()
+{
+ const bool measure_end
+ = scm_is_string (get_property ("whichBar"))
+ && (robust_scm2moment (get_property ("measurePosition"),
+ Moment (0)).main_part_ == Rational (0));
+
+ if (measure_end || first_time_)
+ {
+ last_command_item_ = unsmob<Item> (get_property ("currentCommandColumn"));
+
+ // Finalize the current grobs.
+ if (grobs_initialized ())
{
- Side_position_interface::add_support (text_[i], mmrest_);
- text_[i]->set_parent (mmrest_, Y_AXIS);
- text_[i]->set_parent (mmrest_, X_AXIS);
+ int curr_measure = scm_to_int (get_property ("internalBarNumber"));
+ set_measure_count (curr_measure - start_measure_);
+ if (last_command_item_)
+ add_bound_item_to_grobs (last_command_item_);
+ reset_grobs ();
}
+ }
+ // Create new grobs if a rest event is (still) active.
+ if (!grobs_initialized () && rest_ev_)
+ {
+ initialize_grobs ();
text_events_.clear ();
- start_measure_
- = scm_to_int (get_property ("internalBarNumber"));
-
if (last_command_item_)
{
add_bound_item_to_grobs (last_command_item_);
last_command_item_ = 0;
}
+
+ start_measure_ = scm_to_int (get_property ("internalBarNumber"));
}
first_time_ = false;
clear_lapsed_events (now_mom ());
}
+void
+Multi_measure_rest_engraver::boot ()
+{
+ ADD_LISTENER (Multi_measure_rest_engraver, multi_measure_rest);
+ ADD_LISTENER (Multi_measure_rest_engraver, multi_measure_text);
+}
+
ADD_TRANSLATOR (Multi_measure_rest_engraver,
/* doc */
"Engrave multi-measure rests that are produced with"
projects / lilypond.git / blobdiff