2 lookup.cc -- implement simple Lookup methods.
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 Jan Nieuwenhuizen <janneke@gnu.org>
13 merge rulesym and filledbox.
19 #include "dimensions.hh"
21 #include "paper-def.hh"
22 #include "string-convert.hh"
23 #include "file-path.hh"
25 #include "lily-guile.hh"
26 #include "all-fonts.hh"
29 #include "molecule.hh"
31 #include "lily-guile.hh"
34 array_to_list (SCM *a , int l)
39 list = gh_cons (a[i], list);
51 Lookup::Lookup (Lookup const& s)
53 font_name_ = s.font_name_;
60 Lookup::ledger_line (Interval xwid) const
62 Molecule end (afm_find ("noteheads-ledgerending"));
63 Interval ed = end.dim_[X_AXIS];
64 xwid = Interval (xwid[LEFT] - ed[LEFT],
65 xwid[RIGHT] - ed[RIGHT]);
66 Molecule mid = filledbox (Box (xwid, end.dim_[Y_AXIS]));
71 e1.translate_axis (xwid[RIGHT], X_AXIS);
72 e2.translate_axis (xwid[LEFT], X_AXIS);
81 Lookup::accidental (int j, bool cautionary) const
83 Molecule m(afm_find (String ("accidentals-") + to_str (j)));
86 Molecule open = afm_find (String ("accidentals-("));
87 Molecule close = afm_find (String ("accidentals-)"));
88 m.add_at_edge(X_AXIS, LEFT, Molecule(open), 0);
89 m.add_at_edge(X_AXIS, RIGHT, Molecule(close), 0);
97 Lookup::afm_find (String s, bool warn) const
101 Lookup * me = (Lookup*)(this);
102 me->afm_l_ = all_fonts_global_p->find_afm (font_name_);
105 warning (_f("Can't open `%s'\n", font_name_));
106 warning (_f("Search path %s\n", global_path.str ().ch_C()));
107 error (_f("Aborting"));
110 Adobe_font_char_metric cm = afm_l_->find_char (s, warn);
115 don't want people relying on this kind of dimension.
121 Atom at (gh_list (char_scm_sym,
122 gh_int2scm (cm.code ()),
124 at.font_ = ly_symbol (font_name_.ch_C());
125 m.dim_ = cm.dimensions();
131 Lookup::notehead (int j, String type) const
136 return afm_find (String ("noteheads-") + to_str (j) + type);
140 Lookup::simple_bar (String type, Real h) const
142 SCM thick = ly_symbol ("barthick_" + type);
144 if (paper_l_->scope_p_->elem_b (thick))
146 w = paper_l_->get_realvar (thick);
149 return filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
154 Lookup::bar (String str, Real h) const
157 return staff_bracket (h);
159 return staff_brace (h);
161 Real kern = paper_l_->get_var ("bar_kern");
162 Real thinkern = paper_l_->get_var ("bar_thinkern");
163 Molecule thin = simple_bar ("thin", h);
164 Molecule thick = simple_bar ("thick", h);
165 Molecule colon = afm_find ("dots-repeatcolon");
171 return fill (Box (Interval(0, 0), Interval (-h/2, h/2)));
173 if (str == "scorepostbreak")
175 return simple_bar ("score", h);
181 else if (str == "|.")
183 m.add_at_edge (X_AXIS, LEFT, thick, 0);
184 m.add_at_edge (X_AXIS, LEFT, thin, kern);
186 else if (str == ".|")
188 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
189 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
191 else if (str == ":|")
193 m.add_at_edge (X_AXIS, LEFT, thick, 0);
194 m.add_at_edge (X_AXIS, LEFT, thin, kern);
195 m.add_at_edge (X_AXIS, LEFT, colon, kern);
197 else if (str == "|:")
199 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
200 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
201 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
203 else if (str == ":|:")
205 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
206 m.add_at_edge (X_AXIS, LEFT, colon, kern);
207 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
208 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
210 else if (str == ".|.")
212 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
213 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
215 else if (str == "||")
217 m.add_at_edge (X_AXIS, RIGHT, thin, 0);
218 m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
225 Lookup::beam (Real slope, Real width, Real thick) const
227 Real height = slope * width;
228 Real min_y = (0 <? height) - thick/2;
229 Real max_y = (0 >? height) + thick/2;
234 (gh_list (beam_scm_sym,
235 gh_double2scm (width),
236 gh_double2scm (slope),
237 gh_double2scm (thick),
240 m.dim_[X_AXIS] = Interval (0, width);
241 m.dim_[Y_AXIS] = Interval (min_y, max_y);
247 Lookup::clef (String st) const
249 return afm_find (String ("clefs-" + st));
253 offset2scm (Offset o)
255 return gh_list (gh_double2scm (o[X_AXIS]), gh_double2scm(o[Y_AXIS]),
260 Lookup::dashed_slur (Array<Offset> controls, Real thick, Real dash) const
262 assert (controls.size () == 8);
263 Offset d = controls[3] - controls[0];
271 m.dim_[X_AXIS] = Interval (0, dx);
272 m.dim_[Y_AXIS] = Interval (0 <? dy, 0 >? dy);
275 for (int i=0; i< 4; i++)
277 sc[i] = offset2scm (controls[i]);
281 (gh_list (ly_symbol ("dashed-slur"),
282 gh_double2scm (thick),
283 gh_double2scm (dash),
284 ly_quote_scm (array_to_list (sc, 4)),
293 Lookup::dots () const
295 return afm_find (String ("dots-dot"));
301 Lookup::fill (Box b) const
309 Lookup::flag (int j, Direction d) const
311 char c = (d == UP) ? 'u' : 'd';
312 return afm_find (String ("flags-") + to_str (c) + to_str (j));
316 Lookup::rest (int j, bool o, String style) const
318 return afm_find (String ("rests-") + to_str (j) + (o ? "o" : "") + style);
322 Lookup::rule_symbol (Real height, Real width) const
324 Atom at (gh_list (rulesym_scm_sym,
325 gh_double2scm (height),
326 gh_double2scm (width),
330 m.dim_.x () = Interval (0, width);
331 m.dim_.y () = Interval (0, height);
339 Lookup::special_time_signature (String s, int n, int d) const
341 // First guess: s contains only the signature style
342 String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
344 Molecule m = afm_find (symbolname, false);
348 // Second guess: s contains the full signature name
349 m = afm_find ("timesig-"+s, false);
353 // Resort to default layout with numbers
354 return time_signature (n,d);
358 Lookup::filledbox (Box b ) const
362 Atom at (gh_list (filledbox_scm_sym,
363 gh_double2scm (-b[X_AXIS][LEFT]),
364 gh_double2scm (b[X_AXIS][RIGHT]),
365 gh_double2scm (-b[Y_AXIS][DOWN]),
366 gh_double2scm (b[Y_AXIS][UP]),
375 Lookup::stem (Real y1, Real y2) const
383 Real stem_width = paper_l_->get_var ("stemthickness");
384 return filledbox (Box (Interval (-stem_width/2,stem_width/2),
391 Magnification steps. These are powers of 1.2. The numbers are
392 taken from Knuth's plain.tex: */
393 static Real mag_steps[] = {1, 1, 1.200, 1.440, 1.7280, 2.074, 2.488};
398 Lookup::text (String style, String text) const
401 if (style.empty_b ())
405 Real font_h = paper_l_->get_var ("font_normal");
406 if (paper_l_->scope_p_->elem_b ("font_" + style))
408 font_h = paper_l_->get_var ("font_" + style);
411 if (paper_l_->scope_p_->elem_b ("magnification_" + style))
413 font_mag = (int)paper_l_->get_var ("magnification_" + style);
419 SCM l = gh_eval_str (("(style-to-cmr \"" + style + "\")").ch_C());
422 style = ly_scm2string (SCM_CDR(l)) +to_str ((int)font_h);
426 Interval ydims (0,0);
428 Font_metric* afm_l = all_fonts_global_p->find_font (style);
431 for (int i = 0; i < text.length_i (); i++)
434 for (i++; (i < text.length_i ()) && isalpha(text[i]); i++)
438 Character_metric *c = afm_l->get_char ((unsigned char)text[i],false);
440 w += c->dimensions()[X_AXIS].length ();
441 ydims.unite (c->dimensions()[Y_AXIS]);
445 if (font_mag > 1 && font_mag < 7 )
448 style = style + String(" scaled \\magstep ") + to_str (font_mag);
449 w *= mag_steps[font_mag];
450 ydims *= mag_steps[font_mag];
453 DOUT << "\n" << to_str (w) << "\n";
454 m.dim_.x () = Interval (0, w);
458 Atom at (gh_list (text_scm_sym,
459 gh_str02scm (text.ch_C()),
461 at.font_ = ly_symbol (style);
469 Lookup::time_signature (int num, int den) const
471 String sty = "number";
472 Molecule n (text (sty, to_str (num)));
473 Molecule d (text (sty, to_str (den)));
474 n.align_to (X_AXIS, CENTER);
475 d.align_to (X_AXIS, CENTER);
479 m.add_at_edge (Y_AXIS, UP, n, 0.0);
480 m.add_at_edge (Y_AXIS, DOWN, d, 0.0);
485 m.align_to (Y_AXIS, CENTER);
491 Lookup::staff_brace (Real y) const
495 Atom at (gh_list (pianobrace_scm_sym,
500 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
501 m.dim_[X_AXIS] = Interval (0,0);
507 Lookup::hairpin (Real width, bool decresc, bool continued) const
510 Real height = paper_l_->staffheight_f () / 6;
512 String hairpin = String (decresc ? "de" : "") + "crescendo";
513 Atom at (gh_list (ly_symbol (hairpin),
514 gh_double2scm (width),
515 gh_double2scm (height),
516 gh_double2scm (continued ? height/2 : 0.0),
518 m.dim_.x () = Interval (0, width);
519 m.dim_.y () = Interval (-2*height, 2*height);
526 Lookup::plet (Real dy , Real dx, Direction dir) const
529 SCM thick = tuplet_thick_scm_sym;
531 if (paper_l_->scope_p_->elem_b (thick))
533 t = paper_l_->get_realvar (thick);
536 Real interline_f = paper_l_->get_realvar (interline_scm_sym);
537 Atom at (gh_list(tuplet_scm_sym,
538 gh_double2scm (interline_f),
550 Make a smooth curve along the points
553 Lookup::slur (Array<Offset> controls) const
555 Offset delta_off = controls[3]- controls[0];
559 int indices[] = {5,6,7,4,1,2,3,0};
561 for (int i= 0; i < 8; i++)
562 scontrols[i] = offset2scm (controls[indices[i]]);
565 Atom at (gh_list (ly_symbol ("bezier-sandwich"),
566 ly_quote_scm (array_to_list (scontrols, 8)),
569 m.dim_[X_AXIS] = Interval (0, delta_off[X_AXIS]);
570 m.dim_[Y_AXIS] = Interval (0 <? delta_off[Y_AXIS], 0 >? delta_off[Y_AXIS]);
576 Lookup::staff_bracket (Real y) const
579 Atom at ( gh_list (bracket_scm_sym,
583 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
584 m.dim_[X_AXIS] = Interval (0,4 PT);
586 m.translate_axis (- 4. / 3. * m.dim_[X_AXIS].length (), X_AXIS);
591 Lookup::volta (Real w, bool last_b) const
594 SCM thick = volta_thick_scm_sym;
596 if (paper_l_->scope_p_->elem_b (thick))
598 t = paper_l_->get_realvar (thick);
600 Atom at (gh_list (volta_scm_sym,
606 Real interline_f = paper_l_->get_realvar (interline_scm_sym);
608 m.dim_[Y_AXIS] = Interval (-interline_f, interline_f);
609 m.dim_[X_AXIS] = Interval (0, w);