source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "debug.hh"
-
-#include "line-of-score.hh"
-#include "item.hh"
+#include "all-font-metrics.hh"
+#include "warn.hh"
+#include "main.hh"
+#include "system.hh"
#include "score-engraver.hh"
#include "paper-score.hh"
-#include "musical-request.hh"
#include "paper-column.hh"
-#include "command-request.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "axis-group-interface.hh"
+#include "context-def.hh"
+#include "global-context.hh"
+#include "open-type-font.hh"
+#include "paper-column-engraver.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;
-}
-
-void
-Score_engraver::prepare (Moment w)
-{
- Global_translator::prepare (w);
-
- SCM props = get_property (ly_symbol2scm ("basicPaperColumnProperties"));
- set_columns (new Paper_column (props), new Paper_column (props));
-
- SCM when = smobify (new Moment (w));
- command_column_l_->set_elt_property ("when", when);
- musical_column_l_->set_elt_property ("when", when);
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
-
- Score_element_info i1(command_column_l_, 0), i2 (musical_column_l_,0);
-
- i1.origin_trans_l_ = this;
- i2.origin_trans_l_ = this;
- announce_element (i1);
- announce_element (i2);
-
- post_move_processing();
+ system_ = 0;
+ pscore_ = 0;
}
void
-Score_engraver::finish()
+Score_engraver::derived_mark () const
{
- if ((breaks_i_%8))
- progress_indication ("[" + to_str ( breaks_i_) + "]");
-
- check_removal();
- removal_processing();
+ if (pscore_)
+ scm_gc_mark (pscore_->self_scm ());
+ Score_translator::derived_mark ();
+ Engraver_group::derived_mark ();
}
-/*
- use start/finish?
- */
void
-Score_engraver::do_creation_processing ()
+Score_engraver::prepare (Moment m)
{
- scoreline_l_ = pscore_p_->line_l_;
-
- scoreline_l_->set_bound(LEFT, command_column_l_);
-
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
+ (void) m;
- Engraver_group_engraver::do_creation_processing();
+ precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, DOWN);
}
-
void
-Score_engraver::do_removal_processing()
+Score_engraver::finish ()
{
- Engraver_group_engraver::do_removal_processing();
- scoreline_l_->set_bound(RIGHT,command_column_l_);
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
-
-
- typeset_all ();
-
-
- set_columns (0,0);
-}
-
-void
-Score_engraver::process()
-{
- process_music();
- do_announces();
- pre_move_processing();
- check_removal();
+ recurse_over_translators (context (), &Translator::finalize,
+ &Translator_group::finalize,
+ UP);
}
-void
-Score_engraver::announce_element (Score_element_info info)
-{
- announce_info_arr_.push (info);
- pscore_p_->line_l_->typeset_element (info.elem_l_);
-}
+#define MUSIC_FONT "emmentaler-20"
-/* 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
+/*
+ use start/finish?
*/
-/* junkme? Done by Engraver_group_engraver::do_announces ()?
- */
-
-void
-Score_engraver::do_announces()
-{
- while (announce_info_arr_.size())
- Engraver_group_engraver::do_announces();
-}
-
-
void
-Score_engraver::typeset_element (Score_element *elem_p)
+Score_engraver::initialize ()
{
- elem_p_arr_.push (elem_p);
-}
+ 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"));
+ }
+ pscore_ = new Paper_score (dynamic_cast<Output_def *> (context ()->get_output_def ()));
+ pscore_->unprotect ();
-void
-Score_engraver::typeset_all()
-{
- for (int i =0; i < elem_p_arr_.size(); i++)
- {
- Score_element * elem_p = elem_p_arr_[i];
- elem_p->add_processing ();
+ SCM props = updated_grob_properties (context (), ly_symbol2scm ("System"));
-
- if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
- {
- /*
- do something sensible if spanner not
- spanned on 2 items.
- */
- Direction d = LEFT;
- do {
- if (!s->get_bound (d))
- {
- s->set_bound(d, command_column_l_);
- ::warning (_f ("unbound spanner `%s'", classname(s)));
- }
- } while (flip(&d) != LEFT);
- }
- else
- {
- if (!elem_p->parent_l (X_AXIS))
- {
- bool br = to_boolean (elem_p->get_elt_property ("breakable"));
- Axis_group_interface::add_element (br ? command_column_l_ : musical_column_l_, elem_p);
+ Object_key const *sys_key = context ()->get_grob_key ("System");
+ pscore_->typeset_system (new System (props, sys_key));
+
+ system_ = pscore_->root_system ();
+ context ()->set_property ("rootSystem", system_->self_scm ());
- }
- }
- if (!elem_p->parent_l(Y_AXIS))
- Axis_group_interface::add_element (scoreline_l_, elem_p);
- }
- elem_p_arr_.clear();
+ Engraver_group::initialize ();
}
void
-Score_engraver::do_pre_move_processing()
+Score_engraver::finalize ()
{
- if (to_boolean (command_column_l_->get_elt_property ("breakable")))
- {
- breaks_i_ ++;
- if (! (breaks_i_%8))
- progress_indication ("[" + to_str ( breaks_i_) + "]");
- }
- // this generates all items.
- Engraver_group_engraver::do_pre_move_processing();
-
- typeset_all();
+ Score_translator::finalize ();
+
+ typeset_all ();
}
void
-Score_engraver::set_columns (Paper_column *new_command_l,
- Paper_column *new_musical_l)
+Score_engraver::one_time_step ()
{
- Paper_column * news[] = {new_command_l, new_musical_l};
- Paper_column **current[] = {&command_column_l_, &musical_column_l_};
-
- for (int i=00; i< 2; i++)
+ if (!to_boolean (context ()->get_property ("skipTypesetting")))
{
- if (*current[i])
- {
- scoreline_l_->add_column ((*current[i]));
- if (!(*current[i])->used_b())
- {
- (*current[i])->suicide ();
- *current[i] =0;
- }
- }
- if (news[i])
- *current[i] = news[i];
+ precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
+ Engraver_group::do_announces ();
}
- if (new_musical_l)
- set_property ("currentMusicalColumn", new_musical_l->self_scm_);
- if (new_command_l)
- set_property ("currentCommandColumn", new_command_l->self_scm_);
+ precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
+ typeset_all ();
}
-Music_output*
-Score_engraver::get_output_p ()
+void
+Score_engraver::announce_grob (Grob_info info)
{
- Music_output * o = pscore_p_;
- pscore_p_=0;
- return o;
+ announce_infos_.push (info);
+ pscore_->root_system ()->typeset_grob (info.grob ());
+ elems_.push (info.grob ());
}
-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 (int i = 0; i < elems_.size (); i++)
{
- if (Break_req* b = dynamic_cast<Break_req *> (r))
- {
- gotcha = true;
-
+ Grob *elem = elems_[i];
- SCM pen = command_column_l_->get_elt_property ("penalty");
- Real total_penalty = gh_number_p (pen)
- ? gh_scm2double(pen)
- : 0.0;
-
- 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;
+ elems_.clear ();
}
-void
-Score_engraver::forbid_breaks ()
+SCM
+Score_engraver::get_output ()
{
- /*
- result is junked.
- */
- command_column_l_->remove_elt_property ("breakable");
+ Music_output *o = pscore_;
+ return o->self_scm ();
}
-ADD_THIS_TRANSLATOR(Score_engraver);
-
+/*
+ UGH UGH
+*/
void
-Score_engraver::do_add_processing ()
+Score_engraver::forbid_breaks ()
{
- 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_);
-
- pscore_p_->typeset_line (new Line_of_score (get_property(ly_symbol2scm ("basicLineOfScoreProperties"))));
+ 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 */
+ "");
projects / lilypond.git / blobdiff