source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "all-font-metrics.hh"
-#include "warn.hh"
-#include "main.hh"
-#include "system.hh"
#include "score-engraver.hh"
-#include "paper-score.hh"
-#include "paper-column.hh"
-#include "output-def.hh"
+
+#include "all-font-metrics.hh"
#include "axis-group-interface.hh"
#include "context-def.hh"
+#include "dispatcher.hh"
#include "global-context.hh"
+#include "international.hh"
+#include "main.hh"
#include "open-type-font.hh"
+#include "output-def.hh"
#include "paper-column-engraver.hh"
+#include "paper-column.hh"
+#include "paper-score.hh"
+#include "system.hh"
+#include "warn.hh"
Score_engraver::Score_engraver ()
{
{
if (pscore_)
scm_gc_mark (pscore_->self_scm ());
- Score_translator::derived_mark ();
Engraver_group::derived_mark ();
}
+IMPLEMENT_LISTENER (Score_engraver, prepare);
void
-Score_engraver::prepare (Moment m)
+Score_engraver::prepare (SCM)
{
- (void) m;
-
precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, DOWN);
}
+IMPLEMENT_LISTENER (Score_engraver, finish);
void
-Score_engraver::finish ()
+Score_engraver::finish (SCM)
{
recurse_over_translators (context (), &Translator::finalize,
&Translator_group::finalize,
pscore_ = new Paper_score (dynamic_cast<Output_def *> (context ()->get_output_def ()));
pscore_->unprotect ();
+ context ()->set_property ("output", pscore_->self_scm ());
SCM props = updated_grob_properties (context (), ly_symbol2scm ("System"));
- Object_key const *sys_key = context ()->get_grob_key ("System");
- pscore_->typeset_system (new System (props, sys_key));
+ pscore_->typeset_system (new System (props));
+
system_ = pscore_->root_system ();
context ()->set_property ("rootSystem", system_->self_scm ());
Engraver_group::initialize ();
}
+void
+Score_engraver::connect_to_context (Context *c)
+{
+ Engraver_group::connect_to_context (c);
+
+ Dispatcher *d = c->get_global_context ()->event_source ();
+ d->add_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->add_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
+ d->add_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+}
+
+/*
+ uncovered:
+
+ check_removal always returns false for Score contexts, it has been that way
+since I joined the project. There is a reason for this: The typeset score is
+stored in the Score_engraver, which in turn is accessed through the
+Global_context returned by ly:run-translator. So the score-translator must be
+connected to the score-context after run-translator finishes.
+
+I plan to change this: we should junk run-translator, and instead keep track
+of both context and translator in the SCM code, and access the typeset score
+directly via the created global-translator. Then it would be possible to
+disconnect score-translators at iteration time. -es
+ */
+void
+Score_engraver::disconnect_from_context ()
+{
+ Dispatcher *d = context ()->get_global_context ()->event_source ();
+ d->remove_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->remove_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
+ d->remove_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+
+ Engraver_group::disconnect_from_context ();
+}
+
void
Score_engraver::finalize ()
{
- Score_translator::finalize ();
+ Engraver_group::finalize ();
typeset_all ();
}
+IMPLEMENT_LISTENER (Score_engraver, one_time_step);
void
-Score_engraver::one_time_step ()
+Score_engraver::one_time_step (SCM)
{
if (!to_boolean (context ()->get_property ("skipTypesetting")))
{
void
Score_engraver::announce_grob (Grob_info info)
{
- announce_infos_.push (info);
- pscore_->root_system ()->typeset_grob (info.grob ());
- elems_.push (info.grob ());
+ Engraver_group::announce_grob (info);
+ if (info.start_end () == START)
+ {
+ pscore_->root_system ()->typeset_grob (info.grob ());
+ elems_.push_back (info.grob ());
+ }
}
void
Score_engraver::typeset_all ()
{
- for (int i = 0; i < elems_.size (); i++)
+ for (vsize i = 0; i < elems_.size (); i++)
{
Grob *elem = elems_[i];
elems_.clear ();
}
-SCM
-Score_engraver::get_output ()
-{
- Music_output *o = pscore_;
- return o->self_scm ();
-}
-
-/*
- UGH UGH
-*/
-void
-Score_engraver::forbid_breaks ()
-{
- for (SCM s = simple_trans_list_; scm_is_pair (s); s = scm_cdr (s))
- {
- Translator *tr = unsmob_translator (scm_car (s));
- if (Paper_column_engraver *pce = dynamic_cast<Paper_column_engraver *> (tr))
- pce->forbid_breaks ();
- }
-}
-
-bool
-Score_engraver::try_music (Music *m)
-{
- if (Engraver_group::try_music (m))
- return true;
-
- return false;
-}
-
ADD_TRANSLATOR_GROUP (Score_engraver,
- /* doc */ "Top level engraver. Takes care of generating columns and the complete system (ie. System) "
- "\n\n "
- "This engraver decides whether a column is breakable. The default is "
- "that a column is always breakable. However, when every Bar_engraver "
- "that does not have a barline at a certain point will call "
- "Score_engraver::forbid_breaks to stop linebreaks. In practice, this "
- "means that you can make a breakpoint by creating a barline (assuming "
- "that there are no beams or notes that prevent a breakpoint.) ",
+ /* doc */
+ "The top-level engraver. Takes care of generating"
+ " columns and the complete system (i.e.,"
+ " @code{System}).\n"
+ "\n"
+ "This engraver decides whether a column is breakable."
+ " The default is that a column is always breakable."
+ " However, every @code{Bar_engraver} that does not have"
+ " a bar line at a certain point sets @code{forbidBreaks}"
+ " to stop line breaks. In practice, this means that you"
+ " can make a break point by creating a bar line"
+ " (assuming that there are no beams or notes that"
+ " prevent a break point).",
+
/* create */
"System ",
-
- /* accept */
- "break-event",
+
/* read */
"currentMusicalColumn "
"currentCommandColumn "
- "verticallySpacedContexts",
+ "verticallySpacedContexts ",
+
/* write */
- "");
+ ""
+ );
projects / lilypond.git / blobdiff