/*
- score-grav.cc -- implement Score_engraver
+ score-engraver.cc -- implement Score_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "debug.hh"
-#include "dimension-cache.hh"
-#include "line-of-score.hh"
-#include "item.hh"
+
#include "score-engraver.hh"
-#include "paper-score.hh"
-#include "musical-request.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 "command-request.hh"
-#include "paper-def.hh"
+#include "paper-score.hh"
+#include "system.hh"
+#include "warn.hh"
-Score_engraver::Score_engraver()
+Score_engraver::Score_engraver ()
{
- scoreline_l_ =0;
- command_column_l_ =0;
- musical_column_l_ =0;
- breaks_i_ =0;
- pscore_p_ = 0;
+ system_ = 0;
+ pscore_ = 0;
}
-
+
void
-Score_engraver::prepare (Moment w)
+Score_engraver::derived_mark () const
{
- Global_translator::prepare (w);
- set_columns (new Paper_column (w), new Paper_column (w));
-
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
- post_move_processing();
+ if (pscore_)
+ scm_gc_mark (pscore_->self_scm ());
+ Engraver_group::derived_mark ();
}
+IMPLEMENT_LISTENER (Score_engraver, prepare);
void
-Score_engraver::finish()
+Score_engraver::prepare (SCM)
{
- if ((breaks_i_%8))
- progress_indication ("[" + to_str ( breaks_i_) + "]");
-
- check_removal();
- removal_processing();
+ precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, DOWN);
}
-/*
- use start/finish?
- */
+IMPLEMENT_LISTENER (Score_engraver, finish);
void
-Score_engraver::do_creation_processing ()
+Score_engraver::finish (SCM)
{
- scoreline_l_ = pscore_p_->line_l_;
-
- scoreline_l_->set_bounds(LEFT, command_column_l_);
-
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
-
- Engraver_group_engraver::do_creation_processing();
+ recurse_over_translators (context (), &Translator::finalize,
+ &Translator_group::finalize,
+ UP);
}
+#define MUSIC_FONT "emmentaler-20"
+/*
+ use start/finish?
+*/
void
-Score_engraver::do_removal_processing()
+Score_engraver::initialize ()
{
- Engraver_group_engraver::do_removal_processing();
- scoreline_l_->set_bounds(RIGHT,command_column_l_);
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
+ Font_metric *fm = all_fonts_global->find_otf (MUSIC_FONT);
+ 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"));
+ }
- typeset_all ();
- set_columns (0,0);
-}
+ pscore_ = new Paper_score (dynamic_cast<Output_def *> (context ()->get_output_def ()));
+ pscore_->unprotect ();
+ context ()->set_property ("output", pscore_->self_scm ());
-void
-Score_engraver::process()
-{
- process_requests();
- do_announces();
- pre_move_processing();
- check_removal();
+ SCM props = updated_grob_properties (context (), ly_symbol2scm ("System"));
+
+ pscore_->typeset_system (new System (props));
+
+ system_ = pscore_->root_system ();
+ context ()->set_property ("rootSystem", system_->self_scm ());
+
+ Engraver_group::initialize ();
}
void
-Score_engraver::announce_element (Score_element_info info)
+Score_engraver::connect_to_context (Context *c)
{
- announce_info_arr_.push (info);
- info.origin_trans_l_arr_.push (this);
- pscore_p_->typeset_element (info.elem_l_);
+ 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"));
}
-/* All elements are propagated to the top upon announcement. If
- something was created during one run of
- Engraver_group_engraver::do_announces, then
- announce_info_arr_.size() will be nonzero again
-*/
-/* junkme? Done by Engraver_group_engraver::do_announces ()?
+/*
+ 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::do_announces()
+Score_engraver::disconnect_from_context ()
{
- while (announce_info_arr_.size())
- Engraver_group_engraver::do_announces();
-}
-
+ 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"));
-void
-Score_engraver::typeset_element (Score_element *elem_p)
-{
- elem_p_arr_.push (elem_p);
+ Engraver_group::disconnect_from_context ();
}
-
void
-Score_engraver::typeset_all()
+Score_engraver::finalize ()
{
- for (int i =0; i < elem_p_arr_.size(); i++)
- {
- Score_element * elem_p = elem_p_arr_[i];
- elem_p->add_processing ();
+ Engraver_group::finalize ();
-
- if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
- {
- /*
- do something sensible if spanner not
- spanned on 2 items.
- */
- Direction d = LEFT;
- do {
- if (!s->spanned_drul_[d])
- {
- s->set_bounds(d, command_column_l_);
- ::warning (_f ("unbound spanner `%s'", classname(s)));
- }
- } while (flip(&d) != LEFT);
- }
- else
- {
- Item *item_p = dynamic_cast <Item *> (elem_p);
-
- if (!item_p->parent_l (X_AXIS))
- {
- bool br = to_boolean (item_p->remove_elt_property ("breakable"));
- if (br)
- command_column_l_->add_element(item_p);
- else
- musical_column_l_->add_element(item_p);
- }
- }
- if (!elem_p->parent_l(Y_AXIS))
- scoreline_l_->add_element (elem_p);
- }
- elem_p_arr_.clear();
+ typeset_all ();
}
+IMPLEMENT_LISTENER (Score_engraver, one_time_step);
void
-Score_engraver::do_pre_move_processing()
+Score_engraver::one_time_step (SCM)
{
- if (to_boolean (command_column_l_->get_elt_property ("breakable")))
+ if (!to_boolean (context ()->get_property ("skipTypesetting")))
{
- breaks_i_ ++;
- if (! (breaks_i_%8))
- progress_indication ("[" + to_str ( breaks_i_) + "]");
+ precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
+ Engraver_group::do_announces ();
}
- // this generates all items.
- Engraver_group_engraver::do_pre_move_processing();
-
- typeset_all();
+
+ precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
+ typeset_all ();
}
void
-Score_engraver::set_columns (Paper_column *new_command_l,
- Paper_column *new_musical_l)
+Score_engraver::announce_grob (Grob_info info)
{
- if (command_column_l_ && command_column_l_->linked_b())
- {
- pscore_p_->add_column (command_column_l_);
- scoreline_l_->add_column (command_column_l_);
- }
- else
- command_column_l_ =0;
-
- if (new_command_l)
- command_column_l_ = new_command_l;
-
- if (musical_column_l_ && musical_column_l_->linked_b())
- {
- pscore_p_->add_column (musical_column_l_);
- scoreline_l_->add_column (musical_column_l_);
- }
- else
- musical_column_l_ = 0;
-
- if (new_musical_l)
+ Engraver_group::announce_grob (info);
+ if (info.start_end () == START)
{
- musical_column_l_ = new_musical_l;
+ pscore_->root_system ()->typeset_grob (info.grob ());
+ elems_.push_back (info.grob ());
}
}
-Staff_info
-Score_engraver::get_staff_info() const
-{
- Staff_info inf = Engraver_group_engraver::get_staff_info();
-
- inf.command_l_ = command_column_l_;
- inf.musical_l_ = musical_column_l_;
-
- return inf;
-}
-
-Music_output*
-Score_engraver::get_output_p ()
-{
- Music_output * o = pscore_p_;
- pscore_p_=0;
- return o;
-}
-
-bool
-Score_engraver::do_try_music (Music*r)
+void
+Score_engraver::typeset_all ()
{
- bool gotcha = Engraver_group_engraver::do_try_music (r);
-
- if (!gotcha)
+ for (vsize i = 0; i < elems_.size (); i++)
{
- if (Break_req* b = dynamic_cast<Break_req *> (r))
- {
- gotcha = true;
-
-
- SCM pen = command_column_l_->get_elt_property ("penalty");
- Real total_penalty = gh_number_p (pen)
- ? gh_scm2double(pen)
- : 0.0;
+ Grob *elem = elems_[i];
- total_penalty += b->penalty_f_;
- if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
- forbid_breaks ();
-
- command_column_l_->set_elt_property ("penalty",
- gh_double2scm (total_penalty));
- }
+ if (!elem->get_parent (Y_AXIS))
+ Axis_group_interface::add_element (system_, elem);
}
- return gotcha;
-}
-
-void
-Score_engraver::forbid_breaks ()
-{
- /*
- result is junked.
- */
- command_column_l_->remove_elt_property ("breakable");
-}
-
-ADD_THIS_TRANSLATOR(Score_engraver);
-
-void
-Score_engraver::do_add_processing ()
-{
- Translator_group::do_add_processing ();
- assert (dynamic_cast<Paper_def *> (output_def_l_));
- assert (!daddy_trans_l_);
- pscore_p_ = new Paper_score;
- pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);
-}
-
+ elems_.clear ();
+}
+
+ADD_TRANSLATOR_GROUP (Score_engraver,
+ /* 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 "
+ "verticallySpacedContexts ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff