+++ /dev/null
-/*
- scoreline.cc -- implement Line_of_score
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1996--2002 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-score.hh"
-#include "string.hh"
-#include "warn.hh"
-#include "dimensions.hh"
-#include "molecule.hh"
-#include "all-font-metrics.hh"
-
-// todo: use map.
-void
-fixup_refpoints (SCM s)
-{
- for (; gh_pair_p (s); s = ly_cdr (s))
- {
- Grob::fixup_refpoint (ly_car (s));
- }
-}
-
-
-Line_of_score::Line_of_score (SCM s)
- : Spanner (s)
-{
- rank_i_ = 0;
-
- Axis_group_interface::set_interface (this);
- Axis_group_interface::set_axes (this, Y_AXIS,X_AXIS);
-}
-
-int
-Line_of_score::element_count () const
-{
- return scm_ilength (get_grob_property ("all-elements"));
-}
-
-void
-Line_of_score::typeset_grob (Grob * elem_p)
-{
- elem_p->pscore_l_ = pscore_l_;
- Pointer_group_interface::add_grob (this, ly_symbol2scm ("all-elements"),elem_p);
- scm_gc_unprotect_object (elem_p->self_scm ());
-}
-
-void
-Line_of_score::output_lines ()
-{
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
- {
- unsmob_grob (ly_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++)
- {
- Grob *se = broken_into_l_arr_[i];
- SCM all = se->get_grob_property ("all-elements");
- for (SCM s = all; gh_pair_p (s); s = ly_cdr (s))
- {
- fixup_refpoint (ly_car (s));
- }
- count += scm_ilength (all);
- }
-
- /*
- needed for doing items.
- */
- fixup_refpoints (get_grob_property ("all-elements"));
-
-
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
- {
- unsmob_grob (ly_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 ());
-
- if (verbose_global_b)
- {
- progress_indication (to_str (i));
- progress_indication ("]");
- }
-
- if (i < broken_into_l_arr_.size () - 1)
- {
- SCM lastcol = ly_car (line_l->get_grob_property ("columns"));
- Grob* e = unsmob_grob (lastcol);
-
- SCM between = ly_symbol2scm ("between-system-string");
- SCM inter = e->internal_get_grob_property (between);
- if (gh_string_p (inter))
- {
- pscore_l_->outputter_l_
- ->output_scheme (scm_list_n (between,
- inter, SCM_UNDEFINED));
- }
- }
- }
-}
-
-
-
-
-/*
- Find the loose columns in POSNS, and drape them around the columns
- specified in BETWEEN-COLS. */
-void
-set_loose_columns (Line_of_score* which, Column_x_positions const *posns)
-{
- for (int i = 0; i < posns->loose_cols_.size (); i++)
- {
- int divide_over = 1;
- Item *loose = dynamic_cast<Item*> (posns->loose_cols_[i]);
- Paper_column* col = dynamic_cast<Paper_column*> (loose);
-
- if (col->line_l_)
- continue;
-
-
- Item * left = 0;
- Item * right = 0;
- do
- {
- SCM between = loose->get_grob_property ("between-cols");
- if (!gh_pair_p (between))
- break;
-
-
- Item * l=dynamic_cast<Item*> (unsmob_grob (ly_car (between)));
- Item * r=dynamic_cast<Item*> (unsmob_grob (ly_cdr (between)));
-
- if (!(l && r))
- break ;
-
- if (!left && l)
- {
- left = l->column_l ();
- }
-
- divide_over ++;
-
- loose = right = r->column_l ();
- }
- while (1);
-
-
-#if 0
- Real rx = right->relative_coordinate (right->get_parent (X_AXIS), X_AXIS);
- Real lx = left->relative_coordinate (left->get_parent (X_AXIS), X_AXIS);
-
- /*
- divide space equally over loose columns.
- */
- int j = 1;
- loose = col;
- while (1)
- {
- SCM between = loose->get_grob_property ("between-cols");
- if (!gh_pair_p (between))
- break;
-
- Paper_column *thiscol = dynamic_cast<Paper_column*> (loose);
-
- thiscol->line_l_ = which;
- thiscol->translate_axis (lx + j*(rx - lx)/divide_over, X_AXIS);
-
- j ++;
- loose = dynamic_cast<Item*> (unsmob_grob (ly_cdr (between)));
- }
-#else
- /*
- We divide the remaining space of the column over the left and
- right side. At the moment, we
-
- */
- Grob * common = right->common_refpoint (left, X_AXIS);
-
- Real rx = right->extent(common, X_AXIS)[LEFT];
- Real lx = left->extent(common, X_AXIS)[RIGHT];
- Real total_dx = rx - lx;
- Interval cval =col->extent (col, X_AXIS);
-
- /*
-
- We put it in the middle. This is not an ideal solution -- the
- break alignment code inserts a fixed space before the clef
- (about 1 SS), while the space following the clef is
- flexible. In tight situations, the clef will almost be on top
- of the following note.
-
- */
- Real dx = rx-lx - cval.length ();
- if (total_dx < 2* cval.length ())
- {
- /*
- todo: this is discontinuous. I'm too tired to
- invent a sliding mechanism. Duh.
-
- TODO.
- */
- dx *= 0.25;
- }
- else
- dx *= 0.5;
-
- col->line_l_ = which;
- col->translate_axis (lx + dx - cval[LEFT], X_AXIS);
-#endif
- }
-}
-
-// 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;
- // 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;
- }
- set_loose_columns (line_l, &breaking[i]);
- 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");
-
-
-
-void
-Line_of_score::output_molecule (SCM expr, Offset o)
-{
-
- while (1)
- {
- if (!gh_pair_p (expr))
- return;
-
- SCM head =ly_car (expr);
- if (unsmob_input (head))
- {
- Input * ip = unsmob_input (head);
-
-
- pscore_l_->outputter_l_->output_scheme (scm_list_n (ly_symbol2scm ("define-origin"),
- ly_str02scm (ip->file_str ().ch_C ()),
- gh_int2scm (ip->line_number ()),
- gh_int2scm (ip->column_number ()),
- SCM_UNDEFINED));
- expr = ly_cadr (expr);
- }
- else if (head == ly_symbol2scm ("no-origin"))
- {
- pscore_l_->outputter_l_->output_scheme (scm_list_n (head, SCM_UNDEFINED));
- expr = ly_cadr (expr);
- }
- else if (head == ly_symbol2scm ("translate-molecule"))
- {
- o += ly_scm2offset (ly_cadr (expr));
- expr = ly_caddr (expr);
- }
- else if (head == ly_symbol2scm ("combine-molecule"))
- {
- output_molecule (ly_cadr (expr), o);
- expr = ly_caddr (expr);
- }
- else
- {
- pscore_l_->outputter_l_->
- output_scheme (scm_list_n (placebox_sym,
- gh_double2scm (o[X_AXIS]),
- gh_double2scm (o[Y_AXIS]),
- expr,
- SCM_UNDEFINED));
-
- return;
- }
- }
-}
-
-void
-Line_of_score::output_scheme (SCM s)
-{
- pscore_l_->outputter_l_->output_scheme (s);
-}
-
-void
-Line_of_score::add_column (Paper_column*p)
-{
- Grob *me = this;
- SCM cs = me->get_grob_property ("columns");
- Grob * prev = gh_pair_p (cs) ? unsmob_grob (ly_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::pre_processing ()
-{
- for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = ly_cdr (s))
- unsmob_grob (ly_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 = ly_cdr (s))
- unsmob_grob (ly_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 = ly_cdr (s))
- {
- Grob* sc = unsmob_grob (ly_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 = ly_cdr (s))
- {
- Grob * e = unsmob_grob (ly_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::post_processing (bool last_line)
-{
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
- {
- Grob* sc = unsmob_grob (ly_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 = ly_cdr (s))
- {
- unsmob_grob (ly_car (s))->get_molecule ();
- }
- /*
- font defs;
- */
- SCM font_names = ly_quote_scm (paper_l ()->font_descriptions ());
- output_scheme (scm_list_n (ly_symbol2scm ("define-fonts"),
- font_names,
- SCM_UNDEFINED));
-
- /*
- line preamble.
- */
- output_scheme (scm_list_n (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 = ly_cdr (s))
- {
- Grob *sc = unsmob_grob (ly_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 (ly_car (e));
- o[Y_AXIS] += gh_scm2double (ly_cdr (e));
- }
-
- output_molecule (m->get_expr (), o);
- }
-
- if (last_line)
- {
- output_scheme (scm_list_n (ly_symbol2scm ("stop-last-line"), SCM_UNDEFINED));
- }
- else
- {
- output_scheme (scm_list_n (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) && ly_car (s) != r->self_scm ())
- s = ly_cdr (s);
-
- if (gh_pair_p (s))
- s = ly_cdr (s);
-
- while (gh_pair_p (s) && ly_car (s) != l->self_scm ())
- {
- Paper_column*c = dynamic_cast<Paper_column*> (unsmob_grob (ly_car (s)));
- if (Item::breakable_b (c) && !c->line_l_)
- ret.push (c);
-
- s = ly_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_grobs (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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