source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "debug.hh"
#include "item.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 "axis-group-interface.hh"
+#include "translator-def.hh"
-Score_engraver::Score_engraver()
+
+/*
+ TODO: the column creation logic is rather hairy. Revise it.
+ */
+Score_engraver::Score_engraver ()
{
scoreline_l_ =0;
command_column_l_ =0;
breaks_i_ =0;
pscore_p_ = 0;
}
-
+
+void
+Score_engraver::make_columns ()
+{
+ /*
+ ugh.
+ */
+ if (!command_column_l_)
+ // || *unsmob_moment (command_column_l_->get_grob_property ("when")) != w)
+ {
+ set_columns (new Paper_column (get_property ("NonMusicalPaperColumn")),
+ new Paper_column (get_property ("PaperColumn")));
+
+ command_column_l_->set_grob_property ("breakable", SCM_BOOL_T);
+
+ Grob_info i1 (command_column_l_, 0), i2 (musical_column_l_,0);
+
+ i1.origin_trans_l_ = this;
+ i2.origin_trans_l_ = this;
+ announce_grob (i1);
+ announce_grob (i2);
+ }
+}
+
void
Score_engraver::prepare (Moment w)
{
Global_translator::prepare (w);
- set_columns (new Paper_column (get_property (ly_symbol2scm ("NonMusicalPaperColumn"))),
- new Paper_column (get_property (ly_symbol2scm ("PaperColumn"))));
-
- command_column_l_->set_elt_property ("when", w.make_scm());
- musical_column_l_->set_elt_property ("when", w.make_scm());
- 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();
+ make_columns ();
+ start_translation_timestep ();
}
void
-Score_engraver::finish()
+Score_engraver::finish ()
{
if ((breaks_i_%8))
- progress_indication ("[" + to_str ( breaks_i_) + "]");
+ progress_indication ("[" + to_str (breaks_i_) + "]");
- check_removal();
- removal_processing();
+ check_removal ();
+ removal_processing ();
+
}
/*
use start/finish?
*/
void
-Score_engraver::do_creation_processing ()
+Score_engraver::initialize ()
{
- scoreline_l_ = pscore_p_->line_l_;
+ unsmob_translator_def (definition_)->apply_property_operations (this);
- scoreline_l_->set_bound(LEFT, command_column_l_);
+ 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_);
+
+ SCM props = get_property ("LineOfScore");
+
+ pscore_p_->typeset_line (new Line_of_score (props));
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
+ make_columns ();
+ scoreline_l_ = pscore_p_->line_l_;
+ scoreline_l_->set_bound (LEFT, command_column_l_);
+ command_column_l_->set_grob_property ("breakable", SCM_BOOL_T);
- Engraver_group_engraver::do_creation_processing();
+ Engraver_group_engraver::initialize ();
}
void
-Score_engraver::do_removal_processing()
+Score_engraver::finalize ()
{
- Engraver_group_engraver::do_removal_processing();
- scoreline_l_->set_bound(RIGHT,command_column_l_);
- command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
+ Engraver_group_engraver::finalize ();
+
+ Grob * cc
+ = unsmob_grob (get_property ("currentCommandColumn"));
+ scoreline_l_->set_bound (RIGHT, cc);
+ cc->set_grob_property ("breakable", SCM_BOOL_T);
typeset_all ();
-
- set_columns (0,0);
}
void
-Score_engraver::process()
+Score_engraver::one_time_step ()
{
- process_music();
- do_announces();
- pre_move_processing();
- check_removal();
+ if (!to_boolean (get_property ("skipTypesetting")))
+ {
+ process_music ();
+ announces ();
+ }
+
+
+ stop_translation_timestep ();
+ check_removal ();
}
void
-Score_engraver::announce_element (Score_element_info info)
+Score_engraver::announce_grob (Grob_info info)
{
announce_info_arr_.push (info);
- pscore_p_->line_l_->typeset_element (info.elem_l_);
+ pscore_p_->line_l_->typeset_grob (info.grob_l_);
}
/* 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
+ announce_info_arr_.size () will be nonzero again
*/
/* junkme? Done by Engraver_group_engraver::do_announces ()?
*/
void
-Score_engraver::do_announces()
+Score_engraver::do_announces ()
{
- while (announce_info_arr_.size())
- Engraver_group_engraver::do_announces();
+ Engraver_group_engraver::do_announces ();
}
void
-Score_engraver::typeset_element (Score_element *elem_p)
+Score_engraver::typeset_grob (Grob *elem_p)
{
- elem_p_arr_.push (elem_p);
+ if (!elem_p)
+ programming_error ("Score_engraver: empty elt\n");
+ else
+
+ elem_p_arr_.push (elem_p);
}
void
-Score_engraver::typeset_all()
+Score_engraver::typeset_all ()
{
- for (int i =0; i < elem_p_arr_.size(); i++)
+ for (int i =0; i < elem_p_arr_.size (); i++)
{
- Score_element * elem_p = elem_p_arr_[i];
+ Grob * elem_p = elem_p_arr_[i];
if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
{
do {
if (!s->get_bound (d))
{
- s->set_bound(d, command_column_l_);
- ::warning (_f ("unbound spanner `%s'", s->name().ch_C()));
+ s->set_bound (d, command_column_l_);
+ /* don't warn for empty/suicided spanners,
+ it makes real warningsinvisible.
+ maybe should be junked earlier? */
+ if (elem_p->immutable_property_alist_ == SCM_EOL)
+ ; // gdb hook
+ else
+ ::warning (_f ("unbound spanner `%s'", s->name ().ch_C ()));
}
- } while (flip(&d) != LEFT);
+ } while (flip (&d) != LEFT);
}
else
{
if (!elem_p->parent_l (X_AXIS))
{
- bool br = to_boolean (elem_p->get_elt_property ("breakable"));
+ bool br = to_boolean (elem_p->get_grob_property ("breakable"));
Axis_group_interface::add_element (br ? command_column_l_ : musical_column_l_, elem_p);
}
}
- if (!elem_p->parent_l(Y_AXIS))
+ if (!elem_p->parent_l (Y_AXIS))
Axis_group_interface::add_element (scoreline_l_, elem_p);
}
- elem_p_arr_.clear();
+ elem_p_arr_.clear ();
}
void
-Score_engraver::do_pre_move_processing()
+Score_engraver::stop_translation_timestep ()
{
// this generates all items.
- Engraver_group_engraver::do_pre_move_processing();
+ Engraver_group_engraver::stop_translation_timestep ();
- typeset_all();
- if (to_boolean (command_column_l_->get_elt_property ("breakable")))
+ typeset_all ();
+ if (to_boolean (command_column_l_->get_grob_property ("breakable")))
{
breaks_i_ ++;
if (! (breaks_i_%8))
- progress_indication ("[" + to_str ( breaks_i_) + "]");
+ progress_indication ("[" + to_str (breaks_i_) + "]");
}
+
+ command_column_l_->set_grob_property ("when", now_mom_.smobbed_copy ());
+ musical_column_l_->set_grob_property ("when", now_mom_.smobbed_copy ());
+
+ scoreline_l_->add_column (command_column_l_);
+ scoreline_l_->add_column (musical_column_l_);
+
+ command_column_l_ = 0;
+ musical_column_l_ = 0;
}
void
Score_engraver::set_columns (Paper_column *new_command_l,
Paper_column *new_musical_l)
{
- 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 (*current[i])
- {
- scoreline_l_->add_column ((*current[i]));
-#if 0
- /*
- TODO: delay this decision.
- */
- if (!Paper_column::used_b (*current[i]))
- {
- (*current[i])->suicide ();
- *current[i] =0;
- }
-#endif
- }
- if (news[i])
- *current[i] = news[i];
- }
-
+ assert (!command_column_l_ && !musical_column_l_);
+ command_column_l_ = new_command_l;
+ musical_column_l_ = new_musical_l;
+
if (new_musical_l)
set_property ("currentMusicalColumn", new_musical_l->self_scm ());
if (new_command_l)
}
bool
-Score_engraver::do_try_music (Music*r)
+Score_engraver::try_music (Music*r)
{
- bool gotcha = Engraver_group_engraver::do_try_music (r);
+ bool gotcha = Engraver_group_engraver::try_music (r);
if (!gotcha)
{
gotcha = true;
- SCM pen = command_column_l_->get_elt_property ("penalty");
+ SCM pen = command_column_l_->get_grob_property ("penalty");
Real total_penalty = gh_number_p (pen)
- ? gh_scm2double(pen)
+ ? gh_scm2double (pen)
: 0.0;
- total_penalty += b->penalty_f_;
- if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
+ SCM rpen = b->get_mus_property ("penalty");
+ if (gh_number_p (rpen))
+ total_penalty += gh_scm2double (rpen);
+
+ if (total_penalty > 10000.0) // ugh. arbitrary.
forbid_breaks ();
- command_column_l_->set_elt_property ("penalty",
+ command_column_l_->set_grob_property ("penalty",
gh_double2scm (total_penalty));
}
}
return gotcha;
}
+/*
+ TODO: use property Score.breakForbidden = #t
+ */
+
void
Score_engraver::forbid_breaks ()
{
/*
result is junked.
*/
- command_column_l_->remove_elt_property ("breakable");
+ command_column_l_->remove_grob_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_);
- SCM props = get_property (ly_symbol2scm ("LineOfScore"));
- pscore_p_->typeset_line (new Line_of_score (props));
-}
+ENTER_DESCRIPTION(Score_engraver,
+/* descr */ "Top level engraver. Takes care of generating columns and the complete system (ie. LineOfScore)
+
+
+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.)
+
+",
+/* creats*/ "LineOfScore PaperColumn NonMusicalPaperColumn",
+/* acks */ "grob-interface",
+/* reads */ "currentMusicalColumn currentCommandColumn",
+/* write */ "");
projects / lilypond.git / blobdiff