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>
17 #include "dimensions.hh"
19 #include "paper-def.hh"
20 #include "string-convert.hh"
21 #include "file-path.hh"
23 #include "lily-guile.hh"
24 #include "all-fonts.hh"
27 #include "molecule.hh"
29 #include "lily-guile.hh"
37 Lookup::Lookup (Lookup const& s)
39 font_name_ = s.font_name_;
45 build a ledger line for small pieces.
48 Lookup::ledger_line (Interval xwid) const
50 Drul_array<Molecule> endings;
51 endings[LEFT] = afm_find ("noteheads-ledgerending");
52 Molecule * e = &endings[LEFT];
55 Real thick = e->dim_[Y_AXIS].length();
56 Real len = e->dim_[X_AXIS].length () - thick;
61 endings[d].translate_axis (xwid[d] - endings[d].dim_[X_AXIS][d], X_AXIS);
62 total.add_molecule (endings[d]);
63 } while ((flip(&d)) != LEFT);
65 Real xpos = xwid [LEFT] + len;
67 while (xpos + len + thick /2 <= xwid[RIGHT])
69 e->translate_axis (len, X_AXIS);
70 total.add_molecule (*e);
79 Lookup::accidental (int j, bool cautionary) const
81 Molecule m(afm_find (String ("accidentals-") + to_str (j)));
84 Molecule open = afm_find (String ("accidentals-("));
85 Molecule close = afm_find (String ("accidentals-)"));
86 m.add_at_edge(X_AXIS, LEFT, Molecule(open), 0);
87 m.add_at_edge(X_AXIS, RIGHT, Molecule(close), 0);
95 Lookup::afm_find (String s, bool warn) const
99 Lookup * me = (Lookup*)(this);
100 me->afm_l_ = all_fonts_global_p->find_afm (font_name_);
103 warning (_f("Can't open `%s'\n", font_name_));
104 warning (_f("Search path %s\n", global_path.str ().ch_C()));
105 error (_f("Aborting"));
108 Adobe_font_char_metric cm = afm_l_->find_char (s, warn);
113 don't want people relying on this kind of dimension.
119 Atom at (gh_list (char_scm_sym,
120 gh_int2scm (cm.code ()),
122 at.font_ = ly_symbol (font_name_.ch_C());
123 m.dim_ = cm.dimensions();
129 Lookup::notehead (int j, String type) const
134 return afm_find (String ("noteheads-") + to_str (j) + type);
138 Lookup::simple_bar (String type, Real h, Paper_def* paper_l) const
140 SCM thick = ly_symbol ("barthick_" + type);
143 if (paper_l->scope_p_->elem_b (thick))
145 w = paper_l->get_realvar (thick);
149 programming_error ("No bar thickness set ! ");
152 return filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
157 Lookup::bar (String str, Real h, Paper_def *paper_l) const
160 return staff_bracket (h);
162 return staff_brace (h);
164 Real kern = paper_l->get_var ("bar_kern");
165 Real thinkern = paper_l->get_var ("bar_thinkern");
167 Molecule thin = simple_bar ("thin", h, paper_l);
168 Molecule thick = simple_bar ("thick", h, paper_l);
169 Molecule colon = afm_find ("dots-repeatcolon", paper_l);
175 return fill (Box (Interval(0, 0), Interval (-h/2, h/2)));
177 if (str == "scorepostbreak")
179 return simple_bar ("score", h, paper_l);
185 else if (str == "|.")
187 m.add_at_edge (X_AXIS, LEFT, thick, 0);
188 m.add_at_edge (X_AXIS, LEFT, thin, kern);
190 else if (str == ".|")
192 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
193 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
195 else if (str == ":|")
197 m.add_at_edge (X_AXIS, LEFT, thick, 0);
198 m.add_at_edge (X_AXIS, LEFT, thin, kern);
199 m.add_at_edge (X_AXIS, LEFT, colon, kern);
201 else if (str == "|:")
203 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
204 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
205 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
207 else if (str == ":|:")
209 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
210 m.add_at_edge (X_AXIS, LEFT, colon, kern);
211 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
212 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
214 else if (str == ".|.")
216 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
217 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
219 else if (str == "||")
221 m.add_at_edge (X_AXIS, RIGHT, thin, 0);
222 m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
229 Lookup::beam (Real slope, Real width, Real thick) const
231 Real height = slope * width;
232 Real min_y = (0 <? height) - thick/2;
233 Real max_y = (0 >? height) + thick/2;
238 (gh_list (beam_scm_sym,
239 gh_double2scm (width),
240 gh_double2scm (slope),
241 gh_double2scm (thick),
244 m.dim_[X_AXIS] = Interval (0, width);
245 m.dim_[Y_AXIS] = Interval (min_y, max_y);
251 Lookup::clef (String st) const
253 return afm_find (String ("clefs-" + st));
257 offset2scm (Offset o)
259 return gh_list (gh_double2scm (o[X_AXIS]), gh_double2scm(o[Y_AXIS]),
264 Lookup::dashed_slur (Array<Offset> controls, Real thick, Real dash) const
266 assert (controls.size () == 8);
267 Offset d = controls[3] - controls[0];
275 m.dim_[X_AXIS] = Interval (0, dx);
276 m.dim_[Y_AXIS] = Interval (0 <? dy, 0 >? dy);
279 for (int i=0; i< 4; i++)
281 sc[i] = offset2scm (controls[i]);
285 (gh_list (ly_symbol ("dashed-slur"),
286 gh_double2scm (thick),
287 gh_double2scm (dash),
288 ly_quote_scm (array_to_list (sc, 4)),
297 Lookup::dots () const
299 return afm_find (String ("dots-dot"));
305 Lookup::fill (Box b) const
313 Lookup::flag (int j, Direction d) const
315 char c = (d == UP) ? 'u' : 'd';
316 return afm_find (String ("flags-") + to_str (c) + to_str (j));
320 Lookup::rest (int j, bool o, String style) const
322 return afm_find (String ("rests-") + to_str (j) + (o ? "o" : "") + style);
327 Lookup::special_time_signature (String s, int n, int d, Paper_def*pap) const
329 // First guess: s contains only the signature style
330 String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
332 Molecule m = afm_find (symbolname, false);
336 // Second guess: s contains the full signature name
337 m = afm_find ("timesig-"+s, false);
341 // Resort to default layout with numbers
342 return time_signature (n,d,pap);
346 Lookup::filledbox (Box b ) const
350 Atom at (gh_list (filledbox_scm_sym,
351 gh_double2scm (-b[X_AXIS][LEFT]),
352 gh_double2scm (b[X_AXIS][RIGHT]),
353 gh_double2scm (-b[Y_AXIS][DOWN]),
354 gh_double2scm (b[Y_AXIS][UP]),
365 Magnification steps. These are powers of 1.2. The numbers are
366 taken from Knuth's plain.tex: */
367 static Real mag_steps[] = {1, 1, 1.200, 1.440, 1.7280, 2.074, 2.488};
370 TODO: THIS IS UGLY. Since the user has direct access to TeX
371 strings, we try some halfbaked attempt to detect TeX trickery.
375 Lookup::text (String style, String text, Paper_def *paper_l) const
378 if (style.empty_b ())
382 Real font_h = paper_l->get_var ("font_normal");
383 if (paper_l->scope_p_->elem_b ("font_" + style))
385 font_h = paper_l->get_var ("font_" + style);
388 if (paper_l->scope_p_->elem_b ("magnification_" + style))
390 font_mag = (int)paper_l->get_var ("magnification_" + style);
396 SCM l = gh_eval_str (("(style-to-cmr \"" + style + "\")").ch_C());
399 style = ly_scm2string (SCM_CDR(l)) +to_str ((int)font_h);
403 Interval ydims (0,0);
405 Font_metric* afm_l = all_fonts_global_p->find_font (style);
410 for (int i = 0; i < text.length_i (); i++)
415 for (i++; (i < text.length_i ()) && isalpha(text[i]); i++)
417 i--; // Compensate for the increment in the outer loop!
423 else if (text[i] == '}')
425 Character_metric *c = afm_l->get_char ((unsigned char)text[i],false);
427 w += c->dimensions()[X_AXIS].length ();
428 ydims.unite (c->dimensions()[Y_AXIS]);
432 if (font_mag > 1 && font_mag < 7 )
435 style = style + String(" scaled \\magstep ") + to_str (font_mag);
436 w *= mag_steps[font_mag];
437 ydims *= mag_steps[font_mag];
442 warning (_f ("Non-matching braces in text `%s', adding braces.", text.ch_C()));
446 text = to_str ('{', -brace_count) + text;
450 text = text + to_str ('}', brace_count);
455 DOUT << "\n" << to_str (w) << "\n";
456 m.dim_.x () = Interval (0, w);
460 Atom at (gh_list (text_scm_sym,
461 gh_str02scm (text.ch_C()),
463 at.font_ = ly_symbol (style);
471 Lookup::time_signature (int num, int den, Paper_def *paper_l) const
473 String sty = "number";
474 Molecule n (text (sty, to_str (num), paper_l));
475 Molecule d (text (sty, to_str (den), paper_l));
476 n.align_to (X_AXIS, CENTER);
477 d.align_to (X_AXIS, CENTER);
481 m.add_at_edge (Y_AXIS, UP, n, 0.0);
482 m.add_at_edge (Y_AXIS, DOWN, d, 0.0);
487 m.align_to (Y_AXIS, CENTER);
493 Lookup::staff_brace (Real y) const
497 Atom at (gh_list (pianobrace_scm_sym,
502 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
503 m.dim_[X_AXIS] = Interval (0,0);
509 Lookup::hairpin (Real width, Real height, bool decresc, bool continued) const
513 String hairpin = String (decresc ? "de" : "") + "crescendo";
514 Atom at (gh_list (ly_symbol (hairpin),
515 gh_double2scm (width),
516 gh_double2scm (height),
517 gh_double2scm (continued ? height/2 : 0.0),
519 m.dim_.x () = Interval (0, width);
520 m.dim_.y () = Interval (-2*height, 2*height);
527 Lookup::tuplet_bracket (Real dy , Real dx, Real thick, Real interline_f, Direction dir) const
531 Atom at (gh_list(tuplet_scm_sym,
532 gh_double2scm (interline_f),
535 gh_double2scm (thick),
544 Make a smooth curve along the points
547 Lookup::slur (Array<Offset> controls) const
549 Offset delta_off = controls[3]- controls[0];
553 int indices[] = {5,6,7,4,1,2,3,0};
555 for (int i= 0; i < 8; i++)
556 scontrols[i] = offset2scm (controls[indices[i]]);
559 Atom at (gh_list (ly_symbol ("bezier-sandwich"),
560 ly_quote_scm (array_to_list (scontrols, 8)),
563 m.dim_[X_AXIS] = Interval (0, delta_off[X_AXIS]);
564 m.dim_[Y_AXIS] = Interval (0 <? delta_off[Y_AXIS], 0 >? delta_off[Y_AXIS]);
570 Lookup::staff_bracket (Real y) const
573 Atom at ( gh_list (bracket_scm_sym,
577 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
578 m.dim_[X_AXIS] = Interval (0,4 PT);
580 m.translate_axis (- 4. / 3. * m.dim_[X_AXIS].length (), X_AXIS);
585 Lookup::volta (Real w, Real thick, Real interline_f, bool last_b) const
589 Atom at (gh_list (volta_scm_sym,
591 gh_double2scm (thick),
595 m.dim_[Y_AXIS] = Interval (-interline_f, interline_f);
596 m.dim_[X_AXIS] = Interval (0, w);
603 Lookup::accordion (SCM s, Real interline_f) const
606 String sym = ly_scm2string(SCM_CAR(s));
607 String reg = ly_scm2string(SCM_CAR(SCM_CDR(s)));
609 if (sym == "Discant")
611 Molecule r = afm_find("scripts-accDiscant");
613 if (reg.left_str(1) == "F")
615 Molecule d = afm_find("scripts-accDot");
616 d.translate_axis(interline_f * 2.5 PT, Y_AXIS);
618 reg = reg.right_str(reg.length_i()-1);
621 if (reg.left_str(3) == "EEE")
624 reg = reg.right_str(reg.length_i()-3);
626 else if (reg.left_str(2) == "EE")
629 reg = reg.right_str(reg.length_i()-2);
631 else if (reg.left_str(2) == "Eh")
634 reg = reg.right_str(reg.length_i()-2);
636 else if (reg.left_str(1) == "E")
639 reg = reg.right_str(reg.length_i()-1);
643 Molecule d = afm_find("scripts-accDot");
644 d.translate_axis(interline_f * 1.5 PT, Y_AXIS);
649 Molecule d = afm_find("scripts-accDot");
650 d.translate_axis(interline_f * 1.5 PT, Y_AXIS);
651 d.translate_axis(0.8 * interline_f PT, X_AXIS);
656 Molecule d = afm_find("scripts-accDot");
657 d.translate_axis(interline_f * 1.5 PT, Y_AXIS);
658 d.translate_axis(-0.8 * interline_f PT, X_AXIS);
661 if (reg.left_str(2) == "SS")
663 Molecule d = afm_find("scripts-accDot");
664 d.translate_axis(0.5 * interline_f PT, Y_AXIS);
665 d.translate_axis(0.4 * interline_f PT, X_AXIS);
667 d.translate_axis(-0.8 * interline_f PT, X_AXIS);
669 reg = reg.right_str(reg.length_i()-2);
671 if (reg.left_str(1) == "S")
673 Molecule d = afm_find("scripts-accDot");
674 d.translate_axis(0.5 * interline_f PT, Y_AXIS);
676 reg = reg.right_str(reg.length_i()-1);
679 else if (sym == "Freebase")
681 Molecule r = afm_find("scripts-accFreebase");
683 if (reg.left_str(1) == "F")
685 Molecule d = afm_find("scripts-accDot");
686 d.translate_axis(interline_f * 1.5 PT, Y_AXIS);
688 reg = reg.right_str(reg.length_i()-1);
692 Molecule d = afm_find("scripts-accDot");
693 d.translate_axis(interline_f * 0.5 PT, Y_AXIS);
697 else if (sym == "Bayanbase")
699 Molecule r = afm_find("scripts-accBayanbase");
701 if (reg.left_str(1) == "T")
703 Molecule d = afm_find("scripts-accDot");
704 d.translate_axis(interline_f * 2.5 PT, Y_AXIS);
706 reg = reg.right_str(reg.length_i()-1);
708 /* include 4' reed just for completeness. You don't want to use this. */
709 if (reg.left_str(1) == "F")
711 Molecule d = afm_find("scripts-accDot");
712 d.translate_axis(interline_f * 1.5 PT, Y_AXIS);
714 reg = reg.right_str(reg.length_i()-1);
716 if (reg.left_str(2) == "EE")
718 Molecule d = afm_find("scripts-accDot");
719 d.translate_axis(interline_f * 0.5 PT, Y_AXIS);
720 d.translate_axis(0.4 * interline_f PT, X_AXIS);
722 d.translate_axis(-0.8 * interline_f PT, X_AXIS);
724 reg = reg.right_str(reg.length_i()-2);
726 if (reg.left_str(1) == "E")
728 Molecule d = afm_find("scripts-accDot");
729 d.translate_axis(interline_f * 0.5 PT, Y_AXIS);
731 reg = reg.right_str(reg.length_i()-1);
734 else if (sym == "Stdbase")
736 Molecule r = afm_find("scripts-accStdbase");
738 if (reg.left_str(1) == "T")
740 Molecule d = afm_find("scripts-accDot");
741 d.translate_axis(interline_f * 3.5 PT, Y_AXIS);
743 reg = reg.right_str(reg.length_i()-1);
745 if (reg.left_str(1) == "F")
747 Molecule d = afm_find("scripts-accDot");
748 d.translate_axis(interline_f * 2.5 PT, Y_AXIS);
750 reg = reg.right_str(reg.length_i()-1);
752 if (reg.left_str(1) == "M")
754 Molecule d = afm_find("scripts-accDot");
755 d.translate_axis(interline_f * 2 PT, Y_AXIS);
756 d.translate_axis(interline_f PT, X_AXIS);
758 reg = reg.right_str(reg.length_i()-1);
760 if (reg.left_str(1) == "E")
762 Molecule d = afm_find("scripts-accDot");
763 d.translate_axis(interline_f * 1.5 PT, Y_AXIS);
765 reg = reg.right_str(reg.length_i()-1);
767 if (reg.left_str(1) == "S")
769 Molecule d = afm_find("scripts-accDot");
770 d.translate_axis(interline_f * 0.5 PT, Y_AXIS);
772 reg = reg.right_str(reg.length_i()-1);
775 /* ugh maybe try to use regular font for S.B. and B.B and only use one font
777 else if (sym == "SB")
779 Molecule r = afm_find("scripts-accSB");
782 else if (sym == "BB")
784 Molecule r = afm_find("scripts-accBB");
787 else if (sym == "OldEE")
789 Molecule r = afm_find("scripts-accOldEE");
792 else if (sym == "OldEES")
794 Molecule r = afm_find("scripts-accOldEES");