2 scoreline.cc -- implement Line_of_score
4 source file of the GNU LilyPond music typesetter
6 (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "input-smob.hh"
10 #include "axis-group-interface.hh"
12 #include "line-of-score.hh"
14 #include "paper-column.hh"
15 #include "paper-def.hh"
16 #include "paper-outputter.hh"
17 #include "paper-score.hh"
20 #include "dimensions.hh"
21 #include "molecule.hh"
22 #include "all-font-metrics.hh"
26 fixup_refpoints (SCM s)
28 for (; gh_pair_p (s); s = gh_cdr (s))
30 Grob::fixup_refpoint (gh_car (s));
35 Line_of_score::Line_of_score(SCM s)
40 Axis_group_interface::set_interface (this);
41 Axis_group_interface::set_axes (this, Y_AXIS,X_AXIS);
45 Line_of_score::element_count () const
47 return scm_ilength ( get_grob_property ("all-elements"));
51 Line_of_score::typeset_grob (Grob * elem_p)
53 elem_p->pscore_l_ = pscore_l_;
54 Pointer_group_interface::add_element (this, "all-elements",elem_p);
55 scm_unprotect_object (elem_p->self_scm ());
59 Line_of_score::output_lines ()
61 for (SCM s = get_grob_property ("all-elements");
62 gh_pair_p (s); s = gh_cdr (s))
64 unsmob_grob (gh_car (s))->do_break_processing ();
67 fixups must be done in broken line_of_scores, because new elements
68 are put over there. */
70 for (int i=0; i < broken_into_l_arr_.size (); i++)
72 Grob *se = broken_into_l_arr_[i];
73 SCM all = se->get_grob_property ("all-elements");
74 for (SCM s = all; gh_pair_p (s); s = gh_cdr (s))
76 fixup_refpoint (gh_car (s));
78 count += scm_ilength (all);
83 needed for doing items.
85 fixup_refpoints (get_grob_property ("all-elements"));
88 for (SCM s = get_grob_property ("all-elements");
89 gh_pair_p (s); s = gh_cdr (s))
91 unsmob_grob (gh_car (s))->handle_broken_dependencies ();
93 handle_broken_dependencies ();
96 progress_indication ( _f("Element count %d.", count + element_count()));
99 for (int i=0; i < broken_into_l_arr_.size (); i++)
101 Line_of_score *line_l = dynamic_cast<Line_of_score*> (broken_into_l_arr_[i]);
103 if (verbose_global_b)
104 progress_indication ("[");
105 line_l->post_processing (i+1 == broken_into_l_arr_.size ());
107 if (verbose_global_b)
109 progress_indication (to_str (i));
110 progress_indication ("]");
113 if (i < broken_into_l_arr_.size () - 1)
115 SCM lastcol = gh_car (line_l->get_grob_property ("columns"));
116 Grob* e = unsmob_grob (lastcol);
117 SCM inter = e->get_grob_property ("between-system-string");
118 if (gh_string_p (inter))
120 pscore_l_->outputter_l_->output_string (inter);
128 Line_of_score::break_into_pieces (Array<Column_x_positions> const &breaking)
130 for (int i=0; i < breaking.size (); i++)
132 Line_of_score *line_l = dynamic_cast <Line_of_score*> (clone());
134 // line_l->set_immutable_grob_property ("rank", gh_int2scm( i));
135 Link_array<Grob> c (breaking[i].cols_);
136 pscore_l_->typeset_line (line_l);
138 line_l->set_bound(LEFT,c[0]);
139 line_l->set_bound(RIGHT,c.top ());
140 for (int j=0; j < c.size(); j++)
142 c[j]->translate_axis (breaking[i].config_[j],X_AXIS);
143 dynamic_cast<Paper_column*> (c[j])->line_l_ = line_l;
146 broken_into_l_arr_.push (line_l);
151 #define GLOBAL_SYMBOL(cname, name) \
154 cname ## _init_func () \
156 cname = ly_symbol2scm (name); \
157 scm_permanent_object (cname); \
159 ADD_SCM_INIT_FUNC(cname,cname ## _init_func);\
162 GLOBAL_SYMBOL( offset_sym , "translate-molecule");
163 GLOBAL_SYMBOL( placebox_sym , "placebox");
164 GLOBAL_SYMBOL( combine_sym , "combine-molecule");
165 GLOBAL_SYMBOL( no_origin_sym , "no-origin");
166 GLOBAL_SYMBOL( define_origin_sym , "define-origin");
171 Line_of_score::output_molecule (SCM expr, Offset o)
176 if (!gh_pair_p (expr))
179 SCM head =gh_car (expr);
180 if (unsmob_input (head))
182 Input * ip = unsmob_input (head);
185 pscore_l_->outputter_l_->output_scheme (gh_list (define_origin_sym,
186 ly_str02scm (ip->file_str ().ch_C()),
187 gh_int2scm (ip->line_number ()),
188 gh_int2scm (ip->column_number ()),
190 expr = gh_cadr (expr);
192 else if (head == no_origin_sym)
194 pscore_l_->outputter_l_->output_scheme (gh_list (no_origin_sym, SCM_UNDEFINED));
195 expr = gh_cadr (expr);
197 else if (head == offset_sym)
199 o += ly_scm2offset (gh_cadr (expr));
200 expr = gh_caddr (expr);
202 else if (head == combine_sym)
204 output_molecule (gh_cadr (expr), o);
205 expr = gh_caddr (expr);
209 pscore_l_->outputter_l_->
210 output_scheme (gh_list (placebox_sym,
211 gh_double2scm (o[X_AXIS]),
212 gh_double2scm (o[Y_AXIS]),
222 Line_of_score::output_scheme (SCM s)
224 pscore_l_->outputter_l_->output_scheme (s);
228 Line_of_score::add_column (Paper_column*p)
231 SCM cs = me->get_grob_property ("columns");
232 Grob * prev = gh_pair_p (cs) ? unsmob_grob (gh_car (cs)) : 0;
234 p->rank_i_ = prev ? Paper_column::rank_i (prev) + 1 : 0;
236 me->set_grob_property ("columns", gh_cons (p->self_scm (), cs));
238 Axis_group_interface::add_element (me, p);
244 TODO: use scm_map iso. for loops.
247 Line_of_score::pre_processing ()
249 for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
250 unsmob_grob (gh_car (s))->discretionary_processing ();
253 progress_indication ( _f("Element count %d ", element_count ()));
256 for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
257 unsmob_grob (gh_car (s))->handle_prebroken_dependencies ();
259 fixup_refpoints (get_grob_property ("all-elements"));
261 for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
263 Grob* sc = unsmob_grob (gh_car (s));
264 sc->calculate_dependencies (PRECALCED, PRECALCING, ly_symbol2scm ("before-line-breaking-callback"));
267 progress_indication ("\n" + _ ("Calculating column positions...") + " " );
268 for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
270 Grob * e = unsmob_grob (gh_car (s));
271 SCM proc = e->get_grob_property ("spacing-procedure");
272 if (gh_procedure_p (proc))
273 gh_call1 (proc, e->self_scm ());
278 Line_of_score::post_processing (bool last_line)
280 for (SCM s = get_grob_property ("all-elements");
281 gh_pair_p (s); s = gh_cdr (s))
283 Grob* sc = unsmob_grob (gh_car (s));
284 sc->calculate_dependencies (POSTCALCED, POSTCALCING,
285 ly_symbol2scm ("after-line-breaking-callback"));
288 Interval i(extent(this, Y_AXIS));
290 programming_error ("Huh? Empty Line_of_score?");
292 translate_axis (- i[MAX], Y_AXIS);
294 Real height = i.length ();
297 programming_error ("Improbable system height");
302 generate all molecules to trigger all font loads.
304 (ugh. This is not very memory efficient.) */
305 for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
307 unsmob_grob (gh_car (s))->get_molecule ();
312 SCM font_names = ly_quote_scm (paper_l()->font_descriptions ());
313 output_scheme (gh_list (ly_symbol2scm ("define-fonts"),
320 output_scheme (gh_list (ly_symbol2scm ("start-line"),
321 gh_double2scm (height),
327 for (SCM s = get_grob_property ("all-elements"); gh_pair_p (s); s = gh_cdr (s))
329 Grob *sc = unsmob_grob (gh_car (s));
330 Molecule *m = sc->get_molecule ();
334 Offset o (sc->relative_coordinate (this, X_AXIS),
335 sc->relative_coordinate (this, Y_AXIS));
337 SCM e = sc->get_grob_property ("extra-offset");
340 o[X_AXIS] += gh_scm2double (gh_car (e));
341 o[Y_AXIS] += gh_scm2double (gh_cdr (e));
344 output_molecule (m->get_expr (), o);
348 output_scheme (gh_list (ly_symbol2scm ("stop-last-line"), SCM_UNDEFINED));
352 output_scheme (gh_list (ly_symbol2scm ("stop-line"), SCM_UNDEFINED));
358 Line_of_score::broken_col_range (Item const*l, Item const*r) const
360 Link_array<Item> ret;
364 SCM s = get_grob_property ("columns");
366 while (gh_pair_p (s) && gh_car (s) != r->self_scm ())
372 while (gh_pair_p (s) && gh_car (s) != l->self_scm ())
374 Paper_column*c = dynamic_cast<Paper_column*> ( unsmob_grob (gh_car (s)));
375 if (Item::breakable_b (c) && !c->line_l_)
386 Return all columns, but filter out any unused columns , since they might
387 disrupt the spacing problem.
390 Line_of_score::column_l_arr ()const
393 = Pointer_group_interface__extract_elements (this, (Grob*) 0, "columns");
395 for (int i= acs.size (); i -- ; )
397 bool brb = Item::breakable_b (acs[i]);
398 bfound = bfound || brb;
401 the last column should be breakable. Weed out any columns that
402 seem empty. We need to retain breakable columns, in case
403 someone forced a breakpoint.
405 if (!bfound || !Paper_column::used_b (acs[i]))