2 lookup.cc -- implement simple Lookup methods.
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 Jan Nieuwenhuizen <janneke@gnu.org>
17 #include "dimensions.hh"
20 #include "paper-def.hh"
21 #include "string-convert.hh"
22 #include "file-path.hh"
24 #include "lily-guile.hh"
25 #include "all-font-metrics.hh"
28 #include "molecule.hh"
30 #include "lily-guile.hh"
38 Lookup::Lookup (Lookup const& s)
40 font_name_ = s.font_name_;
46 build a ledger line for small pieces.
49 Lookup::ledger_line (Interval xwid) const
51 Drul_array<Molecule> endings;
52 endings[LEFT] = afm_find ("noteheads-ledgerending");
53 Molecule * e = &endings[LEFT];
56 Real thick = e->dim_[Y_AXIS].length();
57 Real len = e->dim_[X_AXIS].length () - thick;
62 endings[d].translate_axis (xwid[d] - endings[d].dim_[X_AXIS][d], X_AXIS);
63 total.add_molecule (endings[d]);
64 } while ((flip(&d)) != LEFT);
66 Real xpos = xwid [LEFT] + len;
68 while (xpos + len + thick /2 <= xwid[RIGHT])
70 e->translate_axis (len, X_AXIS);
71 total.add_molecule (*e);
82 Lookup::afm_find (String s, bool warn) const
86 Lookup * me = (Lookup*)(this);
87 me->afm_l_ = all_fonts_global_p->find_afm (font_name_);
90 warning (_f ("Can't find font: `%s'", font_name_));
91 warning (_f ("(search path `%s')", global_path.str ().ch_C()));
92 error (_ ("Aborting"));
95 Adobe_font_char_metric cm = afm_l_->find_char (s, warn);
100 don't want people relying on this kind of dimension.
106 Atom at (gh_list (ly_symbol2scm ("char"),
107 gh_int2scm (cm.code ()),
111 m.dim_ = cm.dimensions();
117 Lookup::simple_bar (String type, Real h, Paper_def* paper_l) const
119 SCM thick = ly_symbol2scm (("barthick_" + type).ch_C());
122 if (paper_l->scope_p_->elem_b (thick))
124 w = paper_l->get_realvar (thick);
128 programming_error ("No bar thickness set ! ");
131 return filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
136 Lookup::bar (String str, Real h, Paper_def *paper_l) const
138 if (str == "bracket")
139 return staff_bracket (h, paper_l);
140 else if (str == "brace")
142 Real staffht = paper_l->get_var ("staffheight");
143 return staff_brace (h,staffht);
145 Real kern = paper_l->get_var ("bar_kern");
146 Real thinkern = paper_l->get_var ("bar_thinkern");
148 Molecule thin = simple_bar ("thin", h, paper_l);
149 Molecule thick = simple_bar ("thick", h, paper_l);
150 Molecule colon = afm_find ("dots-repeatcolon", paper_l);
156 return fill (Box (Interval(0, 0), Interval (-h/2, h/2)));
158 if (str == "scorepostbreak")
160 return simple_bar ("score", h, paper_l);
166 else if (str == "|.")
168 m.add_at_edge (X_AXIS, LEFT, thick, 0);
169 m.add_at_edge (X_AXIS, LEFT, thin, kern);
171 else if (str == ".|")
173 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
174 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
176 else if (str == ":|")
178 m.add_at_edge (X_AXIS, LEFT, thick, 0);
179 m.add_at_edge (X_AXIS, LEFT, thin, kern);
180 m.add_at_edge (X_AXIS, LEFT, colon, kern);
182 else if (str == "|:")
184 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
185 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
186 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
188 else if (str == ":|:")
190 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
191 m.add_at_edge (X_AXIS, LEFT, colon, kern);
192 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
193 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
195 else if (str == ".|.")
197 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
198 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
200 else if (str == "||")
202 m.add_at_edge (X_AXIS, RIGHT, thin, 0);
203 m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
210 Lookup::beam (Real slope, Real width, Real thick) const
212 Real height = slope * width;
213 Real min_y = (0 <? height) - thick/2;
214 Real max_y = (0 >? height) + thick/2;
219 (gh_list (ly_symbol2scm ("beam"),
220 gh_double2scm (width),
221 gh_double2scm (slope),
222 gh_double2scm (thick),
225 m.dim_[X_AXIS] = Interval (0, width);
226 m.dim_[Y_AXIS] = Interval (min_y, max_y);
237 Lookup::dashed_slur (Bezier b, Real thick, Real dash) const
240 for (int i= 4; i -- ;)
242 l = gh_cons (ly_offset2scm (b.control_[i]), l);
245 Atom at (gh_list (ly_symbol2scm ("dashed-slur"),
246 gh_double2scm (thick),
247 gh_double2scm (dash),
259 Lookup::fill (Box b) const
269 Lookup::special_time_signature (String s, int n, int d, Paper_def*pap) const
271 // First guess: s contains only the signature style
272 String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
274 Molecule m = afm_find (symbolname, false);
278 // Second guess: s contains the full signature name
279 m = afm_find ("timesig-"+s, false);
283 // Resort to default layout with numbers
284 return time_signature (n,d,pap);
288 Lookup::filledbox (Box b ) const
292 Atom at (gh_list (ly_symbol2scm ("filledbox"),
293 gh_double2scm (-b[X_AXIS][LEFT]),
294 gh_double2scm (b[X_AXIS][RIGHT]),
295 gh_double2scm (-b[Y_AXIS][DOWN]),
296 gh_double2scm (b[Y_AXIS][UP]),
305 TODO: THIS IS UGLY. Since the user has direct access to TeX
306 strings, we try some halfbaked attempt to detect TeX trickery.
309 sanitise_TeX_string (String text)
312 for (int i= 0; i < text.length_i (); i++)
319 else if (text[i] == '}')
325 warning (_f ("Non-matching braces in text `%s', adding braces", text.ch_C()));
329 text = to_str ('{', -brace_count) + text;
333 text = text + to_str ('}', brace_count);
344 sanitise_PS_string (String t)
353 Lookup::text (String style, String text, Paper_def *paper_l) const
356 if (style.empty_b ())
360 Real font_h = paper_l->get_var ("font_normal");
361 if (paper_l->scope_p_->elem_b ("font_" + style))
363 font_h = paper_l->get_var ("font_" + style);
367 if (paper_l->scope_p_->elem_b ("magnification_" + style))
369 font_mag = (int)paper_l->get_var ("magnification_" + style);
375 SCM l = ly_eval_str (("(style-to-cmr \"" + style + "\")").ch_C());
378 style = ly_scm2string (gh_cdr(l)) +to_str ((int)font_h);
383 Font_metric* metric_l = 0;
386 metric_l = all_fonts_global_p->find_scaled (style, font_mag);
388 metric_l = all_fonts_global_p->find_font (style);
391 if (output_global_ch == "tex")
392 text = sanitise_TeX_string (text);
393 else if (output_global_ch == "ps")
394 text = sanitise_PS_string (text);
396 m.dim_ = metric_l->text_dimension (text);
398 Atom at (gh_list (ly_symbol2scm ("text"),
399 ly_str02scm (text.ch_C()),
401 at.fontify (metric_l);
411 Lookup::time_signature (int num, int den, Paper_def *paper_l) const
413 String sty = "number";
414 Molecule n (text (sty, to_str (num), paper_l));
415 Molecule d (text (sty, to_str (den), paper_l));
416 n.align_to (X_AXIS, CENTER);
417 d.align_to (X_AXIS, CENTER);
421 m.add_at_edge (Y_AXIS, UP, n, 0.0);
422 m.add_at_edge (Y_AXIS, DOWN, d, 0.0);
427 m.align_to (Y_AXIS, CENTER);
433 Lookup::staff_brace (Real y, int staff_size) const
438 int minht = 2 * staff_size;
439 int maxht = 7 * minht;
440 int idx = int (((maxht - step) <? y - minht) / step);
444 String nm = String ("feta-braces" + to_str (staff_size));
445 SCM e =gh_list (ly_symbol2scm ("char"), gh_int2scm (idx), SCM_UNDEFINED);
448 at.fontify (all_fonts_global_p->find_font (nm));
450 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
451 m.dim_[X_AXIS] = Interval (0,0);
459 Lookup::tuplet_bracket (Real dy , Real dx, Real thick, Real gap,
460 Real height, Direction dir) const
464 Atom at (gh_list(ly_symbol2scm ("tuplet"),
465 gh_double2scm (height),
469 gh_double2scm (thick),
478 Make a smooth curve along the points
481 Lookup::slur (Bezier curve, Real curvethick, Real linethick) const
483 Real alpha = (curve.control_[3] - curve.control_[0]).arg ();
487 back.control_[1] += curvethick * complex_exp (Offset (0, alpha + M_PI/2));
488 back.control_[2] += curvethick * complex_exp (Offset (0, alpha + M_PI/2));
492 scontrols[ i ] = ly_offset2scm (back.control_[i]);
494 scontrols[i+4] = ly_offset2scm (curve.control_[i]);
497 Need the weird order b.o. the way PS want its arguments
499 int indices[]= {5, 6, 7, 4, 1, 2, 3, 0};
501 for (int i= 8; i--; )
503 list = gh_cons (scontrols[indices[i]], list);
507 Atom at (gh_list (ly_symbol2scm ("bezier-sandwich"),
509 gh_double2scm (linethick),
513 m.dim_[X_AXIS] = curve.extent (X_AXIS);
514 m.dim_[Y_AXIS] = curve.extent (Y_AXIS);
520 Lookup::staff_bracket (Real height, Paper_def* paper_l) const
523 Atom at ( gh_list (ly_symbol2scm ("bracket"),
524 gh_double2scm (paper_l->get_var("bracket_arch_angle")),
525 gh_double2scm (paper_l->get_var("bracket_arch_width")),
526 gh_double2scm (paper_l->get_var("bracket_arch_height")),
527 gh_double2scm (paper_l->get_var("bracket_width")),
528 gh_double2scm (height),
529 gh_double2scm (paper_l->get_var("bracket_arch_thick")),
530 gh_double2scm (paper_l->get_var("bracket_thick")),
534 m.dim_[Y_AXIS] = Interval (-height/2,height/2);
535 m.dim_[X_AXIS] = Interval (0,4 PT);
537 m.translate_axis (- 4. / 3. * m.dim_[X_AXIS].length (), X_AXIS);
542 Lookup::volta (Real h, Real w, Real thick, bool vert_start, bool vert_end) const
546 Atom at (gh_list (ly_symbol2scm ("volta"),
549 gh_double2scm (thick),
550 gh_int2scm (vert_start),
551 gh_int2scm (vert_end),
554 m.dim_[Y_AXIS] = Interval (- h/2, h/2);
555 m.dim_[X_AXIS] = Interval (0, w);
562 Lookup::accordion (SCM s, Real staff_space) const
565 String sym = ly_scm2string(gh_car (s));
566 String reg = ly_scm2string(gh_car (gh_cdr(s)));
568 if (sym == "Discant")
570 Molecule r = afm_find("scripts-accDiscant");
572 if (reg.left_str(1) == "F")
574 Molecule d = afm_find("scripts-accDot");
575 d.translate_axis(staff_space * 2.5 PT, Y_AXIS);
577 reg = reg.right_str(reg.length_i()-1);
580 if (reg.left_str(3) == "EEE")
583 reg = reg.right_str(reg.length_i()-3);
585 else if (reg.left_str(2) == "EE")
588 reg = reg.right_str(reg.length_i()-2);
590 else if (reg.left_str(2) == "Eh")
593 reg = reg.right_str(reg.length_i()-2);
595 else if (reg.left_str(1) == "E")
598 reg = reg.right_str(reg.length_i()-1);
602 Molecule d = afm_find("scripts-accDot");
603 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
608 Molecule d = afm_find("scripts-accDot");
609 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
610 d.translate_axis(0.8 * staff_space PT, X_AXIS);
615 Molecule d = afm_find("scripts-accDot");
616 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
617 d.translate_axis(-0.8 * staff_space PT, X_AXIS);
620 if (reg.left_str(2) == "SS")
622 Molecule d = afm_find("scripts-accDot");
623 d.translate_axis(0.5 * staff_space PT, Y_AXIS);
624 d.translate_axis(0.4 * staff_space PT, X_AXIS);
626 d.translate_axis(-0.8 * staff_space PT, X_AXIS);
628 reg = reg.right_str(reg.length_i()-2);
630 if (reg.left_str(1) == "S")
632 Molecule d = afm_find("scripts-accDot");
633 d.translate_axis(0.5 * staff_space PT, Y_AXIS);
635 reg = reg.right_str(reg.length_i()-1);
638 else if (sym == "Freebase")
640 Molecule r = afm_find("scripts-accFreebase");
642 if (reg.left_str(1) == "F")
644 Molecule d = afm_find("scripts-accDot");
645 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
647 reg = reg.right_str(reg.length_i()-1);
651 Molecule d = afm_find("scripts-accDot");
652 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
656 else if (sym == "Bayanbase")
658 Molecule r = afm_find("scripts-accBayanbase");
660 if (reg.left_str(1) == "T")
662 Molecule d = afm_find("scripts-accDot");
663 d.translate_axis(staff_space * 2.5 PT, Y_AXIS);
665 reg = reg.right_str(reg.length_i()-1);
667 /* include 4' reed just for completeness. You don't want to use this. */
668 if (reg.left_str(1) == "F")
670 Molecule d = afm_find("scripts-accDot");
671 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
673 reg = reg.right_str(reg.length_i()-1);
675 if (reg.left_str(2) == "EE")
677 Molecule d = afm_find("scripts-accDot");
678 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
679 d.translate_axis(0.4 * staff_space PT, X_AXIS);
681 d.translate_axis(-0.8 * staff_space PT, X_AXIS);
683 reg = reg.right_str(reg.length_i()-2);
685 if (reg.left_str(1) == "E")
687 Molecule d = afm_find("scripts-accDot");
688 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
690 reg = reg.right_str(reg.length_i()-1);
693 else if (sym == "Stdbase")
695 Molecule r = afm_find("scripts-accStdbase");
697 if (reg.left_str(1) == "T")
699 Molecule d = afm_find("scripts-accDot");
700 d.translate_axis(staff_space * 3.5 PT, Y_AXIS);
702 reg = reg.right_str(reg.length_i()-1);
704 if (reg.left_str(1) == "F")
706 Molecule d = afm_find("scripts-accDot");
707 d.translate_axis(staff_space * 2.5 PT, Y_AXIS);
709 reg = reg.right_str(reg.length_i()-1);
711 if (reg.left_str(1) == "M")
713 Molecule d = afm_find("scripts-accDot");
714 d.translate_axis(staff_space * 2 PT, Y_AXIS);
715 d.translate_axis(staff_space PT, X_AXIS);
717 reg = reg.right_str(reg.length_i()-1);
719 if (reg.left_str(1) == "E")
721 Molecule d = afm_find("scripts-accDot");
722 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
724 reg = reg.right_str(reg.length_i()-1);
726 if (reg.left_str(1) == "S")
728 Molecule d = afm_find("scripts-accDot");
729 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
731 reg = reg.right_str(reg.length_i()-1);
734 /* ugh maybe try to use regular font for S.B. and B.B and only use one font
736 else if (sym == "SB")
738 Molecule r = afm_find("scripts-accSB");
741 else if (sym == "BB")
743 Molecule r = afm_find("scripts-accBB");
746 else if (sym == "OldEE")
748 Molecule r = afm_find("scripts-accOldEE");
751 else if (sym == "OldEES")
753 Molecule r = afm_find("scripts-accOldEES");