source file of the GNU LilyPond music typesetter
- (c) 1996--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "input-smob.hh"
+#include <math.h>
+
#include "axis-group-interface.hh"
#include "warn.hh"
#include "system.hh"
#include "main.hh"
#include "paper-column.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "paper-outputter.hh"
#include "paper-score.hh"
#include "string.hh"
#include "warn.hh"
-#include "dimensions.hh"
-#include "molecule.hh"
+#include "stencil.hh"
#include "all-font-metrics.hh"
#include "spacing-interface.hh"
-
-// todo: use map.
-void
-fixup_refpoints (SCM s)
-{
- for (; gh_pair_p (s); s = ly_cdr (s))
- {
- Grob::fixup_refpoint (ly_car (s));
- }
-}
-
+#include "staff-symbol-referencer.hh"
+#include "paper-book.hh"
+#include "paper-line.hh"
System::System (SCM s)
: Spanner (s)
int
System::element_count () const
{
- return scm_ilength (get_grob_property ("all-elements"));
+ return scm_ilength (get_property ("all-elements"));
}
int
System::spanner_count () const
{
- int k =0;
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
- {
- if (dynamic_cast<Spanner*> (unsmob_grob (gh_car(s))))
- k++;
- }
-
+ int k = 0;
+ for (SCM s = get_property ("all-elements"); ly_c_pair_p (s); s = ly_cdr (s))
+ if (dynamic_cast<Spanner*> (unsmob_grob (ly_car (s))))
+ k++;
return k;
}
-
-
void
System::typeset_grob (Grob * elem)
{
- elem->pscore_ = pscore_;
- Pointer_group_interface::add_grob (this, ly_symbol2scm ("all-elements"),elem);
- scm_gc_unprotect_object (elem->self_scm ());
+ if (elem->pscore_)
+ programming_error ("Adding element twice.");
+ else
+ {
+ elem->pscore_ = pscore_;
+ Pointer_group_interface::add_grob (this, ly_symbol2scm ("all-elements"), elem);
+ scm_gc_unprotect_object (elem->self_scm ());
+ }
+}
+
+// todo: use map.
+static void
+fixup_refpoints (SCM s)
+{
+ for (; ly_c_pair_p (s); s = ly_cdr (s))
+ {
+ Grob::fixup_refpoint (ly_car (s));
+ }
}
-void
-System::output_lines ()
+SCM
+System::get_lines ()
{
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = get_property ("all-elements"); ly_c_pair_p (s); s = ly_cdr (s))
{
- Grob * g = unsmob_grob (ly_car (s));
- if (Spacing_interface::has_interface (g))
+ Grob *g = unsmob_grob (ly_car (s));
+ if (g->internal_has_interface (ly_symbol2scm ("only-prebreak-interface")))
{
/*
Kill no longer needed grobs.
*/
Item * it = dynamic_cast<Item*> (g);
- if (it && Item::breakable_b(it))
+ if (it && Item::is_breakable (it))
{
- it->find_prebroken_piece (LEFT)->suicide();
- it->find_prebroken_piece (RIGHT)->suicide();
+ it->find_prebroken_piece (LEFT)->suicide ();
+ it->find_prebroken_piece (RIGHT)->suicide ();
}
g->suicide ();
}
- else if (g->live ())
+ else if (g->is_live ())
g->do_break_processing ();
}
for (int i=0; i < broken_intos_.size (); i++)
{
Grob *se = broken_intos_[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));
- }
+ SCM all = se->get_property ("all-elements");
+ for (SCM s = all; ly_c_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"));
+ fixup_refpoints (get_property ("all-elements"));
+
+ for (SCM s = get_property ("all-elements"); ly_c_pair_p (s); s = ly_cdr (s))
+ unsmob_grob (ly_car (s))->handle_broken_dependencies ();
+ handle_broken_dependencies ();
+#if 0 /* don't do this: strange side effects. */
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
+ /* Because the this->get_property (all-elements) contains items in 3
+ versions, handle_broken_dependencies () will leave duplicated
+ items in all-elements. Strictly speaking this is harmless, but
+ it leads to duplicated symbols in the output. ly_list_qsort_uniq_x ()
+ makes sure that no duplicates are in the list. */
+ for (int i = 0; i < line_count; i++)
{
- unsmob_grob (ly_car (s))->handle_broken_dependencies ();
+ SCM all = broken_intos_[i]->get_property ("all-elements");
+ all = ly_list_qsort_uniq_x(all);
}
- handle_broken_dependencies ();
-
+#endif
+
if (verbose_global_b)
progress_indication (_f ("Element count %d.", count + element_count ()));
+ int line_count = broken_intos_.size ();
+ SCM lines = scm_c_make_vector (line_count, SCM_EOL);
- for (int i=0; i < broken_intos_.size (); i++)
+ for (int i = 0; i < line_count; i++)
{
- System *system = dynamic_cast<System*> (broken_intos_[i]);
-
if (verbose_global_b)
progress_indication ("[");
- system->post_processing (i+1 == broken_intos_.size ());
-
- if (verbose_global_b)
- {
- progress_indication (to_string (i));
- progress_indication ("]");
- }
- if (i < broken_intos_.size () - 1)
- {
- SCM lastcol = ly_car (system->get_grob_property ("columns"));
- Grob* e = unsmob_grob (lastcol);
+ System *system = dynamic_cast<System*> (broken_intos_[i]);
+ system->post_processing ();
+ scm_vector_set_x (lines, scm_int2num (i), system->get_line ());
- SCM between = ly_symbol2scm ("between-system-string");
- SCM inter = e->internal_get_grob_property (between);
- if (gh_string_p (inter))
- {
- pscore_->outputter_
- ->output_scheme (scm_list_n (between,
- inter, SCM_UNDEFINED));
- }
- }
+ if (verbose_global_b)
+ progress_indication (to_string (i) + "]");
}
+ return lines;
}
-
-
-
-/*
- Find the loose columns in POSNS, and drape them around the columns
- specified in BETWEEN-COLS. */
-void
+/* Find the loose columns in POSNS, and drape them around the columns
+ specified in BETWEEN-COLS. */
+static void
set_loose_columns (System* which, Column_x_positions const *posns)
{
- for (int i = 0; i < posns->loose_cols_.size (); i++)
+ int loose_col_count = posns->loose_cols_.size ();
+ for (int i = 0; i < loose_col_count; i++)
{
int divide_over = 1;
Item *loose = dynamic_cast<Item*> (posns->loose_cols_[i]);
if (col->system_)
continue;
-
- Item * left = 0;
- Item * right = 0;
- do
+ Item *left = 0;
+ Item *right = 0;
+ while (1)
{
- SCM between = loose->get_grob_property ("between-cols");
- if (!gh_pair_p (between))
+ SCM between = loose->get_property ("between-cols");
+ if (!ly_c_pair_p (between))
break;
+ Item *le = dynamic_cast<Item*> (unsmob_grob (ly_car (between)));
+ Item *re = dynamic_cast<Item*> (unsmob_grob (ly_cdr (between)));
- 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 (!(le && re))
+ break;
- if (!left && l)
+ if (!left && le)
{
- left = l->get_column ();
+ left = le->get_column ();
+ if (!left->get_system ())
+ left = left->find_prebroken_piece (RIGHT);
}
- divide_over ++;
-
- loose = right = r->get_column ();
+ divide_over++;
+ loose = right = re->get_column ();
}
- 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->system_ = 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);
+ if (!right->get_system ())
+ right = right->find_prebroken_piece (LEFT);
- Real rx = right->extent(common, X_AXIS)[LEFT];
- Real lx = left->extent(common, X_AXIS)[RIGHT];
+ /* Divide the remaining space of the column over the left and
+ right side. At the moment, FIXME */
+ 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 ();
+ /* 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.
- */
+ /* TODO: this is discontinuous. I'm too tired to
+ invent a sliding mechanism. Duh. */
dx *= 0.25;
}
else
dx *= 0.5;
col->system_ = which;
+ col->translate_axis (-col->relative_coordinate (common, X_AXIS), X_AXIS);
col->translate_axis (lx + dx - cval[LEFT], X_AXIS);
-#endif
}
}
void
System::break_into_pieces (Array<Column_x_positions> const &breaking)
{
- for (int i=0; i < breaking.size (); i++)
+ for (int i = 0; i < breaking.size (); i++)
{
System *system = dynamic_cast <System*> (clone ());
system->rank_ = i;
system->set_bound (LEFT,c[0]);
system->set_bound (RIGHT,c.top ());
- for (int j=0; j < c.size (); j++)
+ for (int j = 0; j < c.size (); j++)
{
- c[j]->translate_axis (breaking[i].config_[j],X_AXIS);
+ c[j]->translate_axis (breaking[i].config_[j], X_AXIS);
dynamic_cast<Paper_column*> (c[j])->system_ = system;
}
set_loose_columns (system, &breaking[i]);
}
}
-
-void
-System::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_->outputter_->output_scheme (scm_list_n (ly_symbol2scm ("define-origin"),
- scm_makfrom0str (ip->file_string ().to_str0 ()),
- gh_int2scm (ip->line_number ()),
- gh_int2scm (ip->column_number ()),
- SCM_UNDEFINED));
- expr = ly_cadr (expr);
- }
- else if (head == ly_symbol2scm ("no-origin"))
- {
- pscore_->outputter_->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_->outputter_->
- output_scheme (scm_list_n (ly_symbol2scm ("placebox"),
- gh_double2scm (o[X_AXIS]),
- gh_double2scm (o[Y_AXIS]),
- expr,
- SCM_UNDEFINED));
-
- return;
- }
- }
-}
-
-void
-System::output_scheme (SCM s)
-{
- pscore_->outputter_->output_scheme (s);
-}
-
void
System::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;
+ SCM cs = me->get_property ("columns");
+ Grob *prev = ly_c_pair_p (cs) ? unsmob_grob (ly_car (cs)) : 0;
p->rank_ = prev ? Paper_column::get_rank (prev) + 1 : 0;
- me->set_grob_property ("columns", gh_cons (p->self_scm (), cs));
+ me->set_property ("columns", scm_cons (p->self_scm (), cs));
Axis_group_interface::add_element (me, p);
}
-
-
-/*
- TODO: use scm_map iso. for loops.
- */
void
System::pre_processing ()
{
- for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = get_property ("all-elements"); ly_c_pair_p (s); s = ly_cdr (s))
unsmob_grob (ly_car (s))->discretionary_processing ();
if (verbose_global_b)
- progress_indication (_f ("Grob count %d ", element_count ()));
+ progress_indication (_f ("Grob count %d", element_count ()));
- for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = get_property ("all-elements"); ly_c_pair_p (s); s = ly_cdr (s))
unsmob_grob (ly_car (s))->handle_prebroken_dependencies ();
- fixup_refpoints (get_grob_property ("all-elements"));
+ fixup_refpoints (get_property ("all-elements"));
- for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = get_property ("all-elements"); ly_c_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 line breaks...") + " ");
- for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = get_property ("all-elements"); ly_c_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 ());
+ Grob *e = unsmob_grob (ly_car (s));
+ SCM proc = e->get_property ("spacing-procedure");
+ if (ly_c_procedure_p (proc))
+ scm_call_1 (proc, e->self_scm ());
}
}
void
-System::post_processing (bool last_line)
+System::post_processing ()
{
- for (SCM s = get_grob_property ("all-elements");
- gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = get_property ("all-elements"); ly_c_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"));
+ Grob *g = unsmob_grob (ly_car (s));
+ g->calculate_dependencies (POSTCALCED, POSTCALCING,
+ ly_symbol2scm ("after-line-breaking-callback"));
}
- Interval i (extent (this, Y_AXIS));
- if (i.empty_b ())
- programming_error ("Huh? Empty System?");
+ Interval iv (extent (this, Y_AXIS));
+ if (iv.is_empty ())
+ programming_error ("System with zero extent.");
else
- translate_axis (- i[MAX], Y_AXIS);
+ translate_axis (-iv[MAX], Y_AXIS);
- Real height = i.length ();
- if (height > 50 CM)
+ /* Generate all stencils to trigger font loads.
+ This might seem inefficient, but Stencils are cached per grob
+ anyway. */
+ SCM all = get_property ("all-elements");
+ all = ly_list_qsort_uniq_x (all);
+
+ this->get_stencil ();
+ for (SCM s = all; ly_c_pair_p (s); s = ly_cdr (s))
{
- programming_error ("Improbable system height");
- height = 50 CM;
+ Grob *g = unsmob_grob (ly_car (s));
+ g->get_stencil ();
}
+}
- /*
- generate all molecules to trigger all font loads.
+SCM
+System::get_line ()
+{
+ static int const LAYER_COUNT = 3;
- (ugh. This is not very memory efficient.) */
- this->get_molecule();
- 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 (get_paper ()->font_descriptions ());
- output_scheme (scm_list_n (ly_symbol2scm ("define-fonts"),
- font_names,
- SCM_UNDEFINED));
+ SCM stencils = SCM_EOL;
+ if (Stencil *me = get_stencil ())
+ stencils = scm_cons (me->smobbed_copy (), stencils);
- /*
- line preamble.
- */
- Interval j (extent (this, X_AXIS));
- Real length = j[RIGHT];
-
- output_scheme (scm_list_n (ly_symbol2scm ("start-system"),
- gh_double2scm (length),
- gh_double2scm (height),
- SCM_UNDEFINED));
-
- /* Output elements in three layers, 0, 1, 2.
- The default layer is 1. */
-
- {
- Molecule *m = this->get_molecule();
- if (m)
- output_molecule (m->get_expr (), Offset(0,0));
- }
-
- for (int i = 0; i < 3; i++)
- for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s);
- s = ly_cdr (s))
+ /* Output stencils in three layers: 0, 1, 2. Default layer: 1.
+
+ Start with layer 3, since scm_cons prepends to list. */
+ SCM all = get_property ("all-elements");
+
+ SCM exprs = SCM_EOL;
+ SCM *tail = &exprs;
+
+ for (int i = LAYER_COUNT; i--;)
+ for (SCM s = all; ly_c_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)
+ Grob *g = unsmob_grob (ly_car (s));
+ Stencil *stil = g->get_stencil ();
+
+ /* Skip empty stencils and grobs that are not in this layer. */
+ if (!stil
+ || robust_scm2int (g->get_property ("layer"), 1) != i)
continue;
+
+ Offset o (g->relative_coordinate (this, X_AXIS),
+ g->relative_coordinate (this, Y_AXIS));
+
+ Offset extra = robust_scm2offset (g->get_property ("extra-offset"),
+ Offset (0, 0))
+ * Staff_symbol_referencer::staff_space (g);
+
+ /* Must copy the stencil, for we cannot change the stencil
+ cached in G. */
+
+ Stencil st = *stil;
+ st.translate (o + extra);
+ *tail = scm_cons (st.expr (), SCM_EOL);
+ tail = SCM_CDRLOC(*tail);
- 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);
}
+
+ Interval x (extent (this, X_AXIS));
+ Interval y (extent (this, Y_AXIS));
+ Stencil sys_stencil (Box (x,y),
+ scm_cons (ly_symbol2scm ("combine-stencil"),
+ exprs));
- if (last_line)
- {
- output_scheme (scm_list_n (ly_symbol2scm ("stop-last-system"), SCM_UNDEFINED));
- }
- else
- {
- output_scheme (scm_list_n (ly_symbol2scm ("stop-system"), SCM_UNDEFINED));
- }
-}
+ Paper_line *pl = new Paper_line (sys_stencil, false);
+
+ Item * break_point =this->get_bound(LEFT);
+ pl->penalty_ =
+ robust_scm2double (break_point->get_property ("page-penalty"), 0.0);
+
+ return scm_gc_unprotect_object (pl->self_scm ());
+}
+
Link_array<Item>
-System::broken_col_range (Item const*l, Item const*r) const
+System::broken_col_range (Item const *left, Item const *right) const
{
Link_array<Item> ret;
- l = l->get_column ();
- r = r->get_column ();
- SCM s = get_grob_property ("columns");
+ left = left->get_column ();
+ right = right->get_column ();
+ SCM s = get_property ("columns");
- while (gh_pair_p (s) && ly_car (s) != r->self_scm ())
+ while (ly_c_pair_p (s) && ly_car (s) != right->self_scm ())
s = ly_cdr (s);
-
- if (gh_pair_p (s))
+
+ if (ly_c_pair_p (s))
s = ly_cdr (s);
-
- while (gh_pair_p (s) && ly_car (s) != l->self_scm ())
+
+ while (ly_c_pair_p (s) && ly_car (s) != left->self_scm ())
{
Paper_column*c = dynamic_cast<Paper_column*> (unsmob_grob (ly_car (s)));
- if (Item::breakable_b (c) && !c->system_)
+ if (Item::is_breakable (c) && !c->system_)
ret.push (c);
s = ly_cdr (s);
return ret;
}
-/**
- Return all columns, but filter out any unused columns , since they might
- disrupt the spacing problem.
- */
+/** Return all columns, but filter out any unused columns , since they might
+ disrupt the spacing problem. */
Link_array<Grob>
-System::columns ()const
+System::columns () const
{
Link_array<Grob> acs
= Pointer_group_interface__extract_grobs (this, (Grob*) 0, "columns");
- bool bfound = false;
- for (int i= acs.size (); i -- ;)
+ bool found = false;
+ for (int i = acs.size (); i--;)
{
- bool brb = Item::breakable_b (acs[i]);
- bfound = bfound || brb;
+ bool brb = Item::is_breakable (acs[i]);
+ found = found || 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]))
+ if (!found || !Paper_column::is_used (acs[i]))
acs.del (i);
}
return acs;
}
-
-
-
ADD_INTERFACE (System,"system-interface",
- "Super grob, parent of all:
-
-The columns of a score that form one line. The toplevel grob. Any
-grob has a Line_of_score as both X and Y reference point. The
-Paper_score contains one grob of this type. Control enters the
-Grob dependency calculation from this single Line_of_score
-object.",
- "between-system-string all-elements columns");
+ "This is the toplevel object: each object in a score "
+ "ultimately has a System object as its X and Y parent. ",
+ "all-elements columns")
projects / lilypond.git / blobdiff