source file of the GNU LilyPond music typesetter
- (c) 1998--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "engraver.hh"
#include "beam.hh"
-#include "stem.hh"
-#include "warn.hh"
-#include "beaming.hh"
-#include "score-engraver.hh"
-#include "rest.hh"
+#include "beaming-pattern.hh"
+#include "context.hh"
#include "drul-array.hh"
+#include "duration.hh"
+#include "engraver.hh"
+#include "international.hh"
#include "item.hh"
+#include "rest.hh"
+#include "score-context.hh"
#include "spanner.hh"
-#include "context.hh"
+#include "stem.hh"
+#include "warn.hh"
+
+#include "translator.icc"
class Beam_engraver : public Engraver
{
+public:
+ DECLARE_ACKNOWLEDGER (stem);
+ DECLARE_ACKNOWLEDGER (rest);
protected:
Music *start_ev_;
Music *now_stop_ev_;
- Beaming_info_list *beam_info_;
- Beaming_info_list *finished_beam_info_;
+ Beaming_pattern *beam_info_;
+ Beaming_pattern *finished_beam_info_;
/// location within measure where beam started.
Moment beam_start_location_;
void set_melisma (bool);
Moment last_stem_added_at_;
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
+ void stop_translation_timestep ();
+ void start_translation_timestep ();
virtual void finalize ();
- virtual void acknowledge_grob (Grob_info);
virtual bool try_music (Music *);
- virtual void process_music ();
+ void process_music ();
virtual bool valid_start_point ();
virtual bool valid_end_point ();
return false;
if (d == START)
- {
- start_ev_ = m;
- }
+ start_ev_ = m;
else if (d == STOP)
- {
- now_stop_ev_ = m;
- }
+ now_stop_ev_ = m;
return true;
}
return false;
Beam_engraver::process_music ()
{
if (beam_ && !to_boolean (get_property ("allowBeamBreak")))
- {
- get_score_engraver ()->forbid_breaks ();
- }
+ context ()->get_score_context ()->set_property ("forbidBreak", SCM_BOOL_T);
if (start_ev_)
{
beam_start_location_ = mp;
beam_start_mom_ = now_mom ();
- beam_info_ = new Beaming_info_list;
-
+ beam_info_ = new Beaming_pattern;
/* urg, must copy to Auto_beam_engraver too */
}
}
{
if (finished_beam_)
{
- finished_beam_info_->beamify (beat_length_, subdivide_beams_);
+ if (!finished_beam_->get_bound (RIGHT))
+ finished_beam_->set_bound (RIGHT, finished_beam_->get_bound (LEFT));
+
+ finished_beam_info_->beamify (context ());
Beam::set_beaming (finished_beam_, finished_beam_info_);
delete finished_beam_info_;
if (beam_)
{
set_melisma (true);
-
- subdivide_beams_ = to_boolean (get_property ("subdivideBeams"));
- beat_length_ = robust_scm2moment (get_property ("beatLength"), Moment (1, 4));
}
}
}
void
-Beam_engraver::acknowledge_grob (Grob_info info)
+Beam_engraver::acknowledge_rest (Grob_info info)
{
if (beam_)
{
- if (Rest::has_interface (info.grob ()))
- {
- info.grob ()->add_offset_callback (Beam::rest_collision_callback_proc, Y_AXIS);
- }
- else if (Stem::has_interface (info.grob ()))
- {
- Moment now = now_mom ();
-
- if (!valid_start_point ())
- return;
-
- Item *stem = dynamic_cast<Item *> (info.grob ());
- if (Stem::get_beam (stem))
- return;
-
- Music *m = info.music_cause ();
- if (!m->is_mus_type ("rhythmic-event"))
- {
- String s = _ ("stem must have Rhythmic structure");
- if (info.music_cause ())
- info.music_cause ()->origin ()->warning (s);
- else
- ::warning (s);
-
- return;
- }
-
- last_stem_added_at_ = now;
- int durlog = unsmob_duration (m->get_property ("duration"))->duration_log ();
- if (durlog <= 2)
- {
- m->origin ()->warning (_ ("stem doesn't fit in beam"));
- prev_start_ev_->origin ()->warning (_ ("beam was started here"));
- /*
- don't return, since
-
- [r4 c8] can just as well be modern notation.
- */
- }
-
- stem->set_property ("duration-log",
- scm_int2num (durlog));
- Moment stem_location = now - beam_start_mom_ + beam_start_location_;
- beam_info_->add_stem (stem_location,
- max (durlog- 2, 0));
- Beam::add_stem (beam_, stem);
- }
+ chain_offset_callback (info.grob(),
+ Beam::rest_collision_callback_proc, Y_AXIS);
+ }
+}
+
+
+
+void
+Beam_engraver::acknowledge_stem (Grob_info info)
+{
+ if (!beam_)
+ return;
+
+ Moment now = now_mom ();
+ if (!valid_start_point ())
+ return;
+
+ Item *stem = dynamic_cast<Item *> (info.grob ());
+ if (Stem::get_beam (stem))
+ return;
+
+
+
+ Music *m = info.ultimate_music_cause ();
+ if (!m->is_mus_type ("rhythmic-event"))
+ {
+ string s = _ ("stem must have Rhythmic structure");
+ if (info.music_cause ())
+ info.music_cause ()->origin ()->warning (s);
+ else
+ ::warning (s);
+
+ return;
+ }
+
+ last_stem_added_at_ = now;
+ int durlog = unsmob_duration (m->get_property ("duration"))->duration_log ();
+ if (durlog <= 2)
+ {
+ m->origin ()->warning (_ ("stem doesn't fit in beam"));
+ prev_start_ev_->origin ()->warning (_ ("beam was started here"));
+ /*
+ don't return, since
+
+ [r4 c8] can just as well be modern notation.
+ */
}
+
+ stem->set_property ("duration-log",
+ scm_from_int (durlog));
+ Moment stem_location = now - beam_start_mom_ + beam_start_location_;
+ beam_info_->add_stem (stem_location,
+ max (durlog- 2, 0));
+ Beam::add_stem (beam_, stem);
}
+ADD_ACKNOWLEDGER (Beam_engraver, stem);
+ADD_ACKNOWLEDGER (Beam_engraver, rest);
+
ADD_TRANSLATOR (Beam_engraver,
- /* descr */ "Handles Beam events by engraving Beams. If omitted, then notes will be "
+ /* doc */
+
+ "Handles Beam events by engraving Beams. If omitted, then notes will be "
"printed with flags instead of beams.",
- /* creats*/ "Beam",
- /* accepts */ "beam-event",
- /* acks */ "stem-interface rest-interface",
- /* reads */ "beamMelismaBusy beatLength subdivideBeams",
- /* write */ "");
+
+ /* create */ "Beam",
+ /* accept */ "beam-event",
+
+ /* read */
+ "beamMelismaBusy "
+ "beatLength "
+ "subdivideBeams "
+ ,
+ /* write */
+ "forbidBreak");
class Grace_beam_engraver : public Beam_engraver
{
return beam_ && valid_start_point ();
}
+ADD_ACKNOWLEDGER (Grace_beam_engraver, stem);
+ADD_ACKNOWLEDGER (Grace_beam_engraver, rest);
+
ADD_TRANSLATOR (Grace_beam_engraver,
- /* descr */ "Handles Beam events by engraving Beams. If omitted, then notes will "
+
+ /* doc */
+
+ "Handles Beam events by engraving Beams. If omitted, then notes will "
"be printed with flags instead of beams. Only engraves beams when we "
" are at grace points in time. ",
- /* creats*/ "Beam",
- /* accepts */ "beam-event",
- /* acks */ "stem-interface rest-interface",
- /* reads */ "beamMelismaBusy beatLength allowBeamBreak subdivideBeams",
+
+ /* create */ "Beam",
+ /* accept */ "beam-event",
+ /* read */
+ "beamMelismaBusy "
+ "beatLength "
+ "allowBeamBreak "
+ "subdivideBeams "
+ ,
/* write */ "");
projects / lilypond.git / blobdiff