source file of the GNU LilyPond music typesetter
- (c) 1996, 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "axis-group-interface.hh"
+#include "debug.hh"
#include "line-of-score.hh"
-#include "dimension.hh"
-#include "spanner.hh"
-#include "atom.hh"
+#include "main.hh"
+#include "paper-column.hh"
#include "paper-def.hh"
-#include "p-col.hh"
-#include "p-score.hh"
-
+#include "paper-outputter.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()
+ : Spanner (SCM_EOL)
{
- error_mark_b_ = 0;
-}
-
+ set_elt_pointer ("columns", SCM_EOL);
+ set_elt_pointer ("all-elements", SCM_EOL);
-IMPLEMENT_IS_TYPE_B1(Line_of_score,Spanner);
+ Axis_group_interface (this).set_interface ();
+ Axis_group_interface (this).set_axes (Y_AXIS,X_AXIS);
+}
-void
-Line_of_score::add_element (Score_element*e)
+int
+Line_of_score::element_count () const
{
- // avoid excess dependencies.
- if (!(e->axis_group_l_a_[0] || e->axis_group_l_a_[1]))
- add_dependency (e);
+ return scm_ilength ( get_elt_pointer ("all-elements"));
}
-bool
-Line_of_score::contains_b (Paper_column const* c) const
+void
+Line_of_score::typeset_element (Score_element * elem_p)
{
- return cols.find_l ((Paper_column*)c);
+ elem_p->pscore_l_ = pscore_l_;
+ Pointer_group_interface (this, "all-elements").add_element (elem_p);
+ scm_unprotect_object (elem_p->self_scm_);
}
void
-Line_of_score::set_breaking (Array<Column_x_positions> const &breaking)
+Line_of_score::output_lines ()
{
- for (int j=0; j < breaking.size(); j++)
- {
- const Array<Paper_column*> &curline (breaking[j].cols);
- const Array<Paper_column*> &errors (breaking[j].error_col_l_arr_);
- const Array<Real> &config (breaking[j].config);
-
- for (int i=0; i < errors.size(); i++)
- errors[i]->error_mark_b_ = true;
-
- Line_of_score *line_l=0;
- Line_of_score *line_p =0;
-
- if (breaking.size() >1)
+ for (SCM s = get_elt_pointer ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ unsmob_element (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++)
+ {
+ Score_element *se = broken_into_l_arr_[i];
+ SCM all = se->get_elt_pointer ("all-elements");
+ for (SCM s = all; gh_pair_p (s); s = gh_cdr (s))
{
- line_p = (Line_of_score*)clone()->access_Spanner ();
- line_l = line_p;
+ unsmob_element (gh_car (s))->fixup_refpoint ();
}
- else
- line_l = this;
-
- ((Array<Paper_column*> &)line_l->cols) = curline;
- line_l->set_bounds(LEFT,curline[0]);
-
- line_l->set_bounds(RIGHT,curline.top());
-
- if (line_p)
+ count += scm_ilength (all);
+ }
+
+
+ /*
+ needed for doing items.
+ */
+ for (SCM s = get_elt_pointer ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ unsmob_element (gh_car (s))->fixup_refpoint ();
+ }
+
+ for (SCM s = get_elt_pointer ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ unsmob_element (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 ();
+
+ if (verbose_global_b)
{
- pscore_l_->typeset_broken_spanner (line_p);
- broken_into_l_arr_.push (line_p);
+ progress_indication (to_str (i));
+ progress_indication ("]");
}
+ }
+}
- for (int i=0; i < curline.size(); i++)
+// const?
+void
+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;
+ Link_array<Paper_column> 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++)
{
- curline[i]->translate_axis (config[i],X_AXIS);
- curline[i]->line_l_ = (Line_of_score*)line_l;
+ c[j]->translate_axis (breaking[i].config_[j],X_AXIS);
+ c[j]->line_l_ = line_l;
}
+
+ broken_into_l_arr_.push (line_l);
}
}
void
-Line_of_score::break_into_pieces (bool)
+Line_of_score::output_molecule (SCM expr, Offset o)
{
+ SCM offset_sym = ly_symbol2scm ("translate-molecule");
+ SCM combine_sym = ly_symbol2scm ("combine-molecule");
+enter:
+
+ if (!gh_pair_p (expr))
+ return;
+ SCM head =gh_car (expr);
+ if (head == offset_sym)
+ {
+ o += ly_scm2offset (gh_cadr (expr));
+ expr = gh_caddr (expr);
+ goto enter;
+ }
+ else if (head == combine_sym)
+ {
+ output_molecule (gh_cadr (expr), o);
+ expr = gh_caddr (expr);
+ goto enter; // tail recursion
+ }
+ else
+ {
+ pscore_l_->outputter_l_->
+ output_scheme (gh_list (ly_symbol2scm ("placebox"),
+ gh_double2scm (o[X_AXIS]),
+ gh_double2scm (o[Y_AXIS]),
+ expr,
+ SCM_UNDEFINED));
+ }
}
-Link_array<Line_of_score>
-Line_of_score::get_lines() const
+void
+Line_of_score::output_scheme (SCM s)
{
- Link_array<Line_of_score> ret;
-
- if (broken_into_l_arr_.size())
- for (int i=0; i < broken_into_l_arr_.size(); i++)
- {
- ret.push ((Line_of_score*)broken_into_l_arr_[i]);
- }
- else
- ret.push ((Line_of_score*)this); // ugh
-
- return ret;
+ pscore_l_->outputter_l_->output_scheme (s);
}
void
-Line_of_score::do_print() const
+Line_of_score::add_column (Paper_column*p)
{
- Spanner::do_print();
+ SCM cs = get_elt_pointer ("columns");
+ Score_element * prev = gh_pair_p (cs) ? unsmob_element (gh_car (cs)) : 0;
+ int rank = prev ? dynamic_cast<Paper_column*> (prev)->rank_i () + 1 : 0;
+
+ p->set_rank (rank);
+ set_elt_pointer ("columns", gh_cons (p->self_scm_, cs));
+
+ Axis_group_interface (this).add_element (p);
+ typeset_element (p);
}
-Interval
-Line_of_score::do_width() const
-{
- return Spanner::do_width();
+
+void
+fixup_refpoints (SCM s)
+{
+ for (; gh_pair_p (s); s = gh_cdr (s))
+ {
+ Score_element * se = unsmob_element (gh_car (s));
+ if (se)
+ {
+ se->fixup_refpoint ();
+ if (!dynamic_cast<Line_of_score*> (se) && !se->parent_l (Y_AXIS))
+ {
+ programming_error ("No parent!");
+ }
+ }
+ }
}
-Link_array<Score_element>
-Line_of_score::get_extra_dependencies () const
+
+void
+Line_of_score::pre_processing ()
{
- Link_array<Score_element> r;
- for (int i=0; i < cols.size (); i++)
- r.push (cols[i]);
- return r;
+ for (SCM s = get_elt_pointer ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ unsmob_element (gh_car (s))->discretionary_processing ();
+
+ if(verbose_global_b)
+ progress_indication ( _f("Element count %d ", element_count ()));
+
+
+ for (SCM s = get_elt_pointer ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ unsmob_element (gh_car (s))->handle_prebroken_dependencies ();
+
+ fixup_refpoints (get_elt_pointer ("all-elements"));
+
+ for (SCM s = get_elt_pointer ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ {
+ Score_element* sc = unsmob_element (gh_car (s));
+ sc->calculate_dependencies (PRECALCED, PRECALCING, ly_symbol2scm ("before-line-breaking-callback"));
+ }
+
+ progress_indication ("\n" + _ ("Calculating column positions...") + " " );
+ for (SCM s = get_elt_pointer ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ unsmob_element (gh_car (s))->do_space_processing ();
}
void
-Line_of_score::do_unlink ()
+Line_of_score::post_processing ()
{
- Spanner::do_unlink ();
- for (int i=0; i < cols.size (); i++)
- cols[i]->line_l_ =0;
- cols.set_size (0);
+ for (SCM s = get_elt_pointer ("all-elements");
+ gh_pair_p (s); s = gh_cdr (s))
+ {
+ Score_element* sc = unsmob_element (gh_car (s));
+ sc->calculate_dependencies (POSTCALCED, POSTCALCING,
+ ly_symbol2scm ("after-line-breaking-callback"));
+ }
+
+ Interval i(extent(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_elt_pointer ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ unsmob_element (gh_car (s))->get_molecule ();
+
+ /*
+ font defs;
+ */
+ SCM font_names = ly_quote_scm (all_fonts_global_p->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));
+
+ Real il = paper_l ()->get_var ("interline");
+
+ /*
+ all elements.
+ */
+ for (SCM s = get_elt_pointer ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
+ {
+ Score_element * sc = unsmob_element (gh_car (s));
+ Molecule m = sc->get_molecule ();
+
+ Offset o (sc->relative_coordinate (this, X_AXIS),
+ sc->relative_coordinate (this, Y_AXIS));
+
+ SCM e = sc->get_elt_property ("extra-offset");
+ if (gh_pair_p (e))
+ {
+ o[X_AXIS] += il * gh_scm2double (gh_car (e));
+ o[Y_AXIS] += il * gh_scm2double (gh_cdr (e));
+ }
+
+ output_molecule (m.get_expr (), o);
+ }
+ output_scheme (gh_list (ly_symbol2scm ("stop-line"), SCM_UNDEFINED));
}
-void
-Line_of_score::do_junk_links ()
+Link_array<Item>
+Line_of_score::broken_col_range (Item const*l, Item const*r) const
{
- cols.set_size (0);
+ Link_array<Item> ret;
+
+ l = l->column_l ();
+ r = r->column_l ();
+ SCM s = get_elt_pointer ("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_element (gh_car (s)));
+ if (c->breakable_b () && !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<Paper_column>
+Line_of_score::column_l_arr ()const
+{
+ Link_array<Paper_column> acs
+ = Pointer_group_interface__extract_elements (this, (Paper_column*) 0, "columns");
+ bool bfound = false;
+ for (int i= acs.size (); i -- ; )
+ {
+ bool brb = acs[i]->breakable_b();
+ 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 || !acs[i]->used_b ())
+ acs.del (i);
+ }
+ return acs;
}
projects / lilypond.git / blobdiff