-/*
+/*
recording-group-engraver.cc -- implement Recording_group_engraver
source file of the GNU LilyPond music typesetter
- (c) 2003--2004 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2003--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
- */
+#include "recording-group-engraver.hh"
+#include "context.hh"
-#include "engraver-group-engraver.hh"
-#include "protected-scm.hh"
-
-class Recording_group_engraver : public Engraver_group_engraver
-{
-public:
- TRANSLATOR_DECLARATIONS(Recording_group_engraver);
- virtual bool try_music (Music *m);
- virtual void start_translation_timestep ();
- virtual void stop_translation_timestep ();
- virtual void finalize ();
- virtual void initialize ();
- Protected_scm accumulator_;
-};
void
-Recording_group_engraver::initialize ()
+Recording_group_engraver::derived_mark () const
{
- Engraver_group_engraver::initialize ();
- accumulator_ = gh_cons (SCM_EOL, SCM_EOL);
+ Engraver_group_engraver::derived_mark ();
+ scm_gc_mark (now_events_);
+ scm_gc_mark (accumulator_);
}
-Recording_group_engraver::Recording_group_engraver()
+Recording_group_engraver::Recording_group_engraver ()
{
+ accumulator_ = SCM_EOL;
+ now_events_ = SCM_EOL;
}
void
-Recording_group_engraver::start_translation_timestep ()
+Recording_group_engraver::add_music (SCM music, SCM success)
{
- Engraver_group_engraver::start_translation_timestep();
-
- scm_set_car_x (accumulator_, gh_cons (now_mom ().smobbed_copy (), SCM_EOL));
+ now_events_ = scm_cons (scm_cons (music, success), now_events_);
}
void
Recording_group_engraver::stop_translation_timestep ()
{
- Engraver_group_engraver::stop_translation_timestep();
- scm_set_cdr_x (accumulator_, gh_cons (gh_car (accumulator_), gh_cdr (accumulator_)));
-
- scm_set_car_x (accumulator_, SCM_EOL);
+ accumulator_ = scm_acons (scm_cons (context ()->now_mom ().smobbed_copy (),
+ context ()->get_property ("instrumentTransposition")),
+ now_events_,
+ accumulator_);
+ now_events_ = SCM_EOL;
}
void
Recording_group_engraver::finalize ()
{
- Engraver_group_engraver::finalize ();
- SCM proc = get_property ("recordEventSequence");
+ SCM proc = context()->get_property ("recordEventSequence");
- if (gh_procedure_p (proc))
- scm_call_2 (proc, self_scm(), gh_cdr (accumulator_));
-
- accumulator_ = SCM_EOL;
+ if (ly_is_procedure (proc))
+ scm_call_2 (proc, context ()->self_scm (), scm_cdr (accumulator_));
}
bool
-Recording_group_engraver::try_music (Music *m)
+Recording_group_engraver::try_music (Music *m)
{
- bool here_success = Translator_group::try_music_on_nongroup_children (m);
- bool retval = here_success;
- if (!here_success && daddy_trans_)
- retval = daddy_trans_->try_music (m);
-
- SCM seq = gh_cdar (accumulator_);
- seq = gh_cons (gh_cons (m->self_scm(), gh_bool2scm (here_success)),
- seq);
-
- scm_set_cdr_x (gh_car (accumulator_), seq);
+ bool retval = Translator_group::try_music (m);
+ add_music (m->self_scm (), ly_bool2scm (retval));
return retval;
}
+void
+recording_engraver (Translator_group *tg)
+{
+ Recording_group_engraver *rg = dynamic_cast<Recording_group_engraver*> (tg);
+ rg->stop_translation_timestep ();
+}
+
+void
+Recording_group_engraver::fetch_precomputable_methods (Translator_group_void_method ptrs[])
+{
+ Translator_group::fetch_precomputable_methods (ptrs);
+ ptrs[STOP_TRANSLATION_TIMESTEP] = &recording_engraver;
+}
-ENTER_DESCRIPTION(Recording_group_engraver,
- "Engraver_group_engraver that records all music events "
- "for this context. Calls the procedure "
- "in @code{recordEventSequence} when finished.",
- "",
- "",
- "",
- "recordEventSequence",
- "");
+ADD_TRANSLATOR_GROUP (Recording_group_engraver,
+ "Engraver_group_engraver that records all music events "
+ "for this context. Calls the procedure "
+ "in @code{recordEventSequence} when finished.",
+ "",
+ "",
+ "recordEventSequence",
+ "");