source file of the GNU LilyPond music typesetter
- (c) 1996, 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "input-smob.hh"
+#include "axis-group-interface.hh"
+#include "debug.hh"
#include "line-of-score.hh"
+#include "main.hh"
+#include "paper-column.hh"
#include "paper-def.hh"
#include "paper-outputter.hh"
-#include "paper-column.hh"
#include "paper-score.hh"
+#include "string.hh"
#include "warn.hh"
+#include "dimensions.hh"
+#include "molecule.hh"
+#include "all-font-metrics.hh"
-Line_of_score::Line_of_score()
+// todo: use map.
+void
+fixup_refpoints (SCM s)
{
- set_axes (Y_AXIS,Y_AXIS);
+ for (; gh_pair_p (s); s = gh_cdr (s))
+ {
+ Grob::fixup_refpoint (gh_car (s));
+ }
}
-bool
-Line_of_score::contains_b (Paper_column const* c) const
+
+Line_of_score::Line_of_score (SCM s)
+ : Spanner (s)
{
- return cols_.find_l ((Paper_column*)(c));
+ rank_i_ = 0;
+
+ Axis_group_interface::set_interface (this);
+ Axis_group_interface::set_axes (this, Y_AXIS,X_AXIS);
}
-// const?
-Line_of_score*
-Line_of_score::set_breaking (Array<Column_x_positions> const &breaking, int j)
+int
+Line_of_score::element_count () const
{
- const Link_array<Paper_column> &curline (breaking[j].cols_);
- const Array<Real> &config (breaking[j].config_);
- Line_of_score *line_l=0;
+ return scm_ilength (get_grob_property ("all-elements"));
+}
- line_l = dynamic_cast <Line_of_score*> (clone());
+void
+Line_of_score::typeset_grob (Grob * elem_p)
+{
+ elem_p->pscore_l_ = pscore_l_;
+ Pointer_group_interface::add_element (this, "all-elements",elem_p);
+ scm_unprotect_object (elem_p->self_scm ());
+}
- line_l->cols_ = curline;
- line_l->set_bounds(LEFT,curline[0]);
- line_l->set_bounds(RIGHT,curline.top());
-
- for (int i=0; i < curline.size(); i++)
+void
+Line_of_score::output_lines ()
+{
+ for (SCM s = get_grob_property ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ unsmob_grob (gh_car (s))->do_break_processing ();
+ }
+ /*
+ fixups must be done in broken line_of_scores, because new elements
+ are put over there. */
+ int count = 0;
+ for (int i=0; i < broken_into_l_arr_.size (); i++)
{
- curline[i]->translate_axis (config[i],X_AXIS);
- curline[i]->line_l_ = dynamic_cast<Line_of_score*>(line_l);
+ Grob *se = broken_into_l_arr_[i];
+ SCM all = se->get_grob_property ("all-elements");
+ for (SCM s = all; gh_pair_p (s); s = gh_cdr (s))
+ {
+ fixup_refpoint (gh_car (s));
+ }
+ count += scm_ilength (all);
}
- Breaking_information b;
- b.bounds_ = line_l->spanned_drul_;
- b.broken_spanner_l_ = line_l;
- b.line_l_ = line_l;
- broken_into_l_arr_.push (line_l);
+ /*
+ needed for doing items.
+ */
+ fixup_refpoints (get_grob_property ("all-elements"));
+
+
+ for (SCM s = get_grob_property ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ unsmob_grob (gh_car (s))->handle_broken_dependencies ();
+ }
+ handle_broken_dependencies ();
+
+ if (verbose_global_b)
+ progress_indication (_f ("Element count %d.", count + element_count ()));
+
+
+ for (int i=0; i < broken_into_l_arr_.size (); i++)
+ {
+ Line_of_score *line_l = dynamic_cast<Line_of_score*> (broken_into_l_arr_[i]);
+
+ if (verbose_global_b)
+ progress_indication ("[");
+ line_l->post_processing (i+1 == broken_into_l_arr_.size ());
- return line_l;
+ if (verbose_global_b)
+ {
+ progress_indication (to_str (i));
+ progress_indication ("]");
+ }
+
+ if (i < broken_into_l_arr_.size () - 1)
+ {
+ SCM lastcol = gh_car (line_l->get_grob_property ("columns"));
+ Grob* e = unsmob_grob (lastcol);
+ SCM inter = e->get_grob_property ("between-system-string");
+ if (gh_string_p (inter))
+ {
+ pscore_l_->outputter_l_->output_string (inter);
+ }
+ }
+ }
}
+// const?
void
-Line_of_score::add_column (Paper_column*p)
+Line_of_score::break_into_pieces (Array<Column_x_positions> const &breaking)
+{
+ for (int i=0; i < breaking.size (); i++)
+ {
+ Line_of_score *line_l = dynamic_cast <Line_of_score*> (clone ());
+ line_l->rank_i_ = i;
+ // line_l->set_immutable_grob_property ("rank", gh_int2scm (i));
+ Link_array<Grob> c (breaking[i].cols_);
+ pscore_l_->typeset_line (line_l);
+
+ line_l->set_bound (LEFT,c[0]);
+ line_l->set_bound (RIGHT,c.top ());
+ for (int j=0; j < c.size (); j++)
+ {
+ c[j]->translate_axis (breaking[i].config_[j],X_AXIS);
+ dynamic_cast<Paper_column*> (c[j])->line_l_ = line_l;
+ }
+
+ broken_into_l_arr_.push (line_l);
+ }
+}
+
+
+#define GLOBAL_SYMBOL(cname, name) \
+SCM cname ; \
+void \
+cname ## _init_func () \
+{ \
+ cname = ly_symbol2scm (name); \
+ scm_permanent_object (cname); \
+} \
+ADD_SCM_INIT_FUNC (cname,cname ## _init_func);\
+
+
+GLOBAL_SYMBOL (offset_sym , "translate-molecule");
+GLOBAL_SYMBOL (placebox_sym , "placebox");
+GLOBAL_SYMBOL (combine_sym , "combine-molecule");
+GLOBAL_SYMBOL (no_origin_sym , "no-origin");
+GLOBAL_SYMBOL (define_origin_sym , "define-origin");
+
+
+
+void
+Line_of_score::output_molecule (SCM expr, Offset o)
{
- cols_.push (p);
+
+ while (1)
+ {
+ if (!gh_pair_p (expr))
+ return;
+
+ SCM head =gh_car (expr);
+ if (unsmob_input (head))
+ {
+ Input * ip = unsmob_input (head);
+
+
+ pscore_l_->outputter_l_->output_scheme (gh_list (define_origin_sym,
+ ly_str02scm (ip->file_str ().ch_C ()),
+ gh_int2scm (ip->line_number ()),
+ gh_int2scm (ip->column_number ()),
+ SCM_UNDEFINED));
+ expr = gh_cadr (expr);
+ }
+ else if (head == no_origin_sym)
+ {
+ pscore_l_->outputter_l_->output_scheme (gh_list (no_origin_sym, SCM_UNDEFINED));
+ expr = gh_cadr (expr);
+ }
+ else if (head == offset_sym)
+ {
+ o += ly_scm2offset (gh_cadr (expr));
+ expr = gh_caddr (expr);
+ }
+ else if (head == combine_sym)
+ {
+ output_molecule (gh_cadr (expr), o);
+ expr = gh_caddr (expr);
+ }
+ else
+ {
+ pscore_l_->outputter_l_->
+ output_scheme (gh_list (placebox_sym,
+ gh_double2scm (o[X_AXIS]),
+ gh_double2scm (o[Y_AXIS]),
+ expr,
+ SCM_UNDEFINED));
+
+ return;
+ }
+ }
}
void
-Line_of_score::do_print() const
+Line_of_score::output_scheme (SCM s)
{
- Spanner::do_print();
- Axis_group_spanner::do_print ();
+ pscore_l_->outputter_l_->output_scheme (s);
}
-Link_array<Score_element>
-Line_of_score::get_extra_dependencies () const
+void
+Line_of_score::add_column (Paper_column*p)
{
- Link_array<Score_element> r (Axis_group_spanner::get_extra_dependencies ());
- for (int i=0; i < cols_.size (); i++)
- r.push (cols_[i]);
- return r;
+ Grob *me = this;
+ SCM cs = me->get_grob_property ("columns");
+ Grob * prev = gh_pair_p (cs) ? unsmob_grob (gh_car (cs)) : 0;
+
+ p->rank_i_ = prev ? Paper_column::rank_i (prev) + 1 : 0;
+
+ me->set_grob_property ("columns", gh_cons (p->self_scm (), cs));
+
+ Axis_group_interface::add_element (me, p);
}
+
+
+/*
+ TODO: use scm_map iso. for loops.
+ */
void
-Line_of_score::do_substitute_element_pointer (Score_element*o, Score_element*n)
+Line_of_score::pre_processing ()
{
- if (Paper_column *p = dynamic_cast<Paper_column*>(o))
- cols_.substitute (p, dynamic_cast<Paper_column*>(n));
+ for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ unsmob_grob (gh_car (s))->discretionary_processing ();
+
+ if (verbose_global_b)
+ progress_indication (_f ("Element count %d ", element_count ()));
+
+
+ for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ unsmob_grob (gh_car (s))->handle_prebroken_dependencies ();
+
+ fixup_refpoints (get_grob_property ("all-elements"));
+
+ for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ {
+ Grob* sc = unsmob_grob (gh_car (s));
+ sc->calculate_dependencies (PRECALCED, PRECALCING, ly_symbol2scm ("before-line-breaking-callback"));
+ }
+
+ progress_indication ("\n" + _ ("Calculating column positions...") + " ");
+ for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ {
+ Grob * e = unsmob_grob (gh_car (s));
+ SCM proc = e->get_grob_property ("spacing-procedure");
+ if (gh_procedure_p (proc))
+ gh_call1 (proc, e->self_scm ());
+ }
}
void
-Line_of_score::output_all (bool last_line)
+Line_of_score::post_processing (bool last_line)
{
- Interval i(extent(Y_AXIS));
- if (i.empty_b())
- warning (_ ("Huh? Empty Line_of_score?"));
+ for (SCM s = get_grob_property ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ Grob* sc = unsmob_grob (gh_car (s));
+ sc->calculate_dependencies (POSTCALCED, POSTCALCING,
+ ly_symbol2scm ("after-line-breaking-callback"));
+ }
+
+ Interval i (extent (this, Y_AXIS));
+ if (i.empty_b ())
+ programming_error ("Huh? Empty Line_of_score?");
else
translate_axis (- i[MAX], Y_AXIS);
+
+ Real height = i.length ();
+ if (height > 50 CM)
+ {
+ programming_error ("Improbable system height");
+ height = 50 CM;
+ }
+
+ /*
+ generate all molecules to trigger all font loads.
+
+ (ugh. This is not very memory efficient.) */
+ for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ {
+ unsmob_grob (gh_car (s))->get_molecule ();
+ }
+ /*
+ font defs;
+ */
+ SCM font_names = ly_quote_scm (paper_l ()->font_descriptions ());
+ output_scheme (gh_list (ly_symbol2scm ("define-fonts"),
+ font_names,
+ SCM_UNDEFINED));
+
+ /*
+ line preamble.
+ */
+ output_scheme (gh_list (ly_symbol2scm ("start-line"),
+ gh_double2scm (height),
+ SCM_UNDEFINED));
+
+ /* Output elements in three layers, 0, 1, 2.
+ The default layer is 1. */
+ for (int i = 0; i < 3; i++)
+ for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s);
+ s = gh_cdr (s))
+ {
+ Grob *sc = unsmob_grob (gh_car (s));
+ Molecule *m = sc->get_molecule ();
+ if (!m)
+ continue;
+
+ SCM s = sc->get_grob_property ("layer");
+ int layer = gh_number_p (s) ? gh_scm2int (s) : 1;
+ if (layer != i)
+ continue;
+
+ Offset o (sc->relative_coordinate (this, X_AXIS),
+ sc->relative_coordinate (this, Y_AXIS));
+
+ SCM e = sc->get_grob_property ("extra-offset");
+ if (gh_pair_p (e))
+ {
+ o[X_AXIS] += gh_scm2double (gh_car (e));
+ o[Y_AXIS] += gh_scm2double (gh_cdr (e));
+ }
+
+ output_molecule (m->get_expr (), o);
+ }
- pscore_l_->outputter_l_->start_line (i.length ());
- Super_element::output_all ();
if (last_line)
- pscore_l_->outputter_l_->stop_last_line();
+ {
+ output_scheme (gh_list (ly_symbol2scm ("stop-last-line"), SCM_UNDEFINED));
+ }
else
- pscore_l_->outputter_l_->stop_line ();
+ {
+ output_scheme (gh_list (ly_symbol2scm ("stop-line"), SCM_UNDEFINED));
+ }
+}
+
+
+Link_array<Item>
+Line_of_score::broken_col_range (Item const*l, Item const*r) const
+{
+ Link_array<Item> ret;
+
+ l = l->column_l ();
+ r = r->column_l ();
+ SCM s = get_grob_property ("columns");
+
+ while (gh_pair_p (s) && gh_car (s) != r->self_scm ())
+ s = gh_cdr (s);
+
+ if (gh_pair_p (s))
+ s = gh_cdr (s);
+
+ while (gh_pair_p (s) && gh_car (s) != l->self_scm ())
+ {
+ Paper_column*c = dynamic_cast<Paper_column*> (unsmob_grob (gh_car (s)));
+ if (Item::breakable_b (c) && !c->line_l_)
+ ret.push (c);
+
+ s = gh_cdr (s);
+ }
+
+ ret.reverse ();
+ return ret;
}
+
+/**
+ Return all columns, but filter out any unused columns , since they might
+ disrupt the spacing problem.
+ */
+Link_array<Grob>
+Line_of_score::column_l_arr ()const
+{
+ Link_array<Grob> acs
+ = Pointer_group_interface__extract_elements (this, (Grob*) 0, "columns");
+ bool bfound = false;
+ for (int i= acs.size (); i -- ;)
+ {
+ bool brb = Item::breakable_b (acs[i]);
+ bfound = bfound || brb;
+
+ /*
+ the last column should be breakable. Weed out any columns that
+ seem empty. We need to retain breakable columns, in case
+ someone forced a breakpoint.
+ */
+ if (!bfound || !Paper_column::used_b (acs[i]))
+ acs.del (i);
+ }
+ return acs;
+}
+
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