/*
- score-engraver.cc -- implement Score_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "score-engraver.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"
{
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,
- UP);
+ &Translator_group::finalize,
+ UP);
}
#define MUSIC_FONT "emmentaler-20"
if (!fm)
{
error (_f ("cannot find `%s'", MUSIC_FONT ".otf")
- + "\n"
- + _ ("Music font has not been installed properly.")
- + "\n"
- + _f ("Search path `%s'", global_path.to_string ().c_str ())
- + "\n"
- + _ ("Aborting"));
+ + "\n"
+ + _ ("Music font has not been installed properly.")
+ + "\n"
+ + _f ("Search path `%s'", global_path.to_string ().c_str ())
+ + "\n"
+ + _ ("Aborting"));
}
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];
if (!elem->get_parent (Y_AXIS))
- Axis_group_interface::add_element (system_, elem);
+ Axis_group_interface::add_element (system_, elem);
}
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.) ",
- /* create */
- "System ",
-
- /* accept */
- "break-event",
- /* read */
- "currentMusicalColumn "
- "currentCommandColumn "
- "verticallySpacedContexts",
- /* write */
- "");
+ /* 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 ",
+
+ /* read */
+ "currentMusicalColumn "
+ "currentCommandColumn ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff