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"
32 array_to_list (SCM *a , int l)
37 list = gh_cons (a[i], list);
49 Lookup::Lookup (Lookup const& s)
51 font_name_ = s.font_name_;
58 Lookup::ledger_line (Interval xwid) const
60 Molecule end (afm_find ("noteheads-ledgerending"));
61 Interval ed = end.dim_[X_AXIS];
62 xwid = Interval (xwid[LEFT] - ed[LEFT],
63 xwid[RIGHT] - ed[RIGHT]);
64 Molecule mid = filledbox (Box (xwid, end.dim_[Y_AXIS]));
69 e1.translate_axis (xwid[RIGHT], X_AXIS);
70 e2.translate_axis (xwid[LEFT], X_AXIS);
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 Atom at (gh_list (char_scm_sym,
114 gh_int2scm (cm.code ()),
116 at.font_ = ly_symbol (font_name_.ch_C());
117 m.dim_ = cm.dimensions();
123 Lookup::ball (int j) const
128 return afm_find (String ("noteheads-") + to_str (j));
132 Lookup::simple_bar (String type, Real h) const
134 SCM thick = ly_symbol ("barthick_" + type);
136 if (paper_l_->scope_p_->elem_b (thick))
138 w = paper_l_->get_realvar (thick);
141 return filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
146 Lookup::bar (String str, Real h) const
149 return staff_bracket (h);
151 return staff_brace (h);
153 Real kern = paper_l_->get_var ("bar_kern");
154 Real thinkern = paper_l_->get_var ("bar_thinkern");
155 Molecule thin = simple_bar ("thin", h);
156 Molecule thick = simple_bar ("thick", h);
157 Molecule colon = afm_find ("dots-repeatcolon");
163 return fill (Box (Interval(0, 0), Interval (-h/2, h/2)));
169 else if (str == "|.")
171 m.add_at_edge (X_AXIS, LEFT, thick, 0);
172 m.add_at_edge (X_AXIS, LEFT, thin, kern);
174 else if (str == ".|")
176 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
177 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
179 else if (str == ":|")
181 m.add_at_edge (X_AXIS, LEFT, thick, 0);
182 m.add_at_edge (X_AXIS, LEFT, thin, kern);
183 m.add_at_edge (X_AXIS, LEFT, colon, kern);
185 else if (str == "|:")
187 m.add_at_edge (X_AXIS, RIGHT, thick, 0);
188 m.add_at_edge (X_AXIS, RIGHT, thin, kern);
189 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
191 else if (str == ":|:")
193 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
194 m.add_at_edge (X_AXIS, LEFT, colon, kern);
195 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
196 m.add_at_edge (X_AXIS, RIGHT, colon, kern);
198 else if (str == ".|.")
200 m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
201 m.add_at_edge (X_AXIS, RIGHT, thick, kern);
203 else if (str == "||")
205 m.add_at_edge (X_AXIS, RIGHT, thin, 0);
206 m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
213 Lookup::beam (Real slope, Real width, Real thick) const
215 Real height = slope * width;
216 Real min_y = (0 <? height) - thick/2;
217 Real max_y = (0 >? height) + thick/2;
222 (gh_list (beam_scm_sym,
223 gh_double2scm (width),
224 gh_double2scm (slope),
225 gh_double2scm (thick),
228 m.dim_[X_AXIS] = Interval (0, width);
229 m.dim_[Y_AXIS] = Interval (min_y, max_y);
235 Lookup::clef (String st) const
237 return afm_find (String ("clefs-" + st));
241 offset2scm (Offset o)
243 return gh_list (gh_double2scm (o[X_AXIS]), gh_double2scm(o[Y_AXIS]),
248 Lookup::dashed_slur (Array<Offset> controls, Real thick, Real dash) const
250 assert (controls.size () == 8);
251 Offset d = controls[3] - controls[0];
259 m.dim_[X_AXIS] = Interval (0, dx);
260 m.dim_[Y_AXIS] = Interval (0 <? dy, 0 >? dy);
263 for (int i=0; i< 4; i++)
265 sc[i] = offset2scm (controls[i]);
269 (gh_list (ly_symbol ("dashed-slur"),
270 gh_double2scm (thick),
271 gh_double2scm (dash),
272 ly_quote_scm (array_to_list (sc, 4)),
281 Lookup::dots () const
283 return afm_find (String ("dots-dot"));
289 Lookup::fill (Box b) const
297 Lookup::flag (int j, Direction d) const
299 char c = (d == UP) ? 'u' : 'd';
300 return afm_find (String ("flags-") + to_str (c) + to_str (j));
304 Lookup::rest (int j, bool o) const
306 return afm_find (String ("rests-") + to_str (j) + (o ? "o" : ""));
310 Lookup::rule_symbol (Real height, Real width) const
312 Atom at (gh_list (rulesym_scm_sym,
313 gh_double2scm (height),
314 gh_double2scm (width),
318 m.dim_.x () = Interval (0, width);
319 m.dim_.y () = Interval (0, height);
327 Lookup::script (String str) const
329 return afm_find (String ("scripts-") + str);
333 Lookup::special_time_signature (String s, int n, int d) const
335 // First guess: s contains only the signature style
336 String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
338 Molecule m = afm_find (symbolname, false);
339 if (!m.dim_[X_AXIS].empty_b ())
342 // Second guess: s contains the full signature name
343 m = afm_find ("timesig-"+s, false);
344 if (!m.dim_[X_AXIS].empty_b ())
347 // Resort to default layout with numbers
348 return time_signature (n,d);
352 Lookup::filledbox (Box b ) const
356 Atom at (gh_list (filledbox_scm_sym,
357 gh_double2scm (-b[X_AXIS][LEFT]),
358 gh_double2scm (b[X_AXIS][RIGHT]),
359 gh_double2scm (-b[Y_AXIS][DOWN]),
360 gh_double2scm (b[Y_AXIS][UP]),
369 Lookup::stem (Real y1, Real y2) const
377 Real stem_width = paper_l_->get_var ("stemthickness");
378 return filledbox (Box (Interval (-stem_width/2,stem_width/2),
385 Magnification steps. These are powers of 1.2. The numbers are
386 taken from Knuth's plain.tex: */
387 static Real mag_steps[] = {1, 1, 1.200, 1.440, 1.7280, 2.074, 2.488};
392 Lookup::text (String style, String text) const
397 Real font_h = paper_l_->get_var ("font_normal");
398 if (paper_l_->scope_p_->elem_b ("font_" + style))
400 font_h = paper_l_->get_var ("font_" + style);
403 if (paper_l_->scope_p_->elem_b ("magnification_" + style))
405 font_mag = (int)paper_l_->get_var ("magnification_" + style);
408 SCM l = gh_eval_str (("(style-to-cmr \"" + style + "\")").ch_C());
412 char * s = gh_scm2newstr(SCM_CDR (l), &len);
413 style = String (s) + to_str ((int)font_h);
418 Interval ydims (0,0);
420 Font_metric* afm_l = all_fonts_global_p->find_font (style);
423 for (int i = 0; i < text.length_i (); i++)
426 for (i++; (i < text.length_i ()) && isalpha(text[i]); i++)
430 Character_metric *c = afm_l->get_char ((unsigned char)text[i],false);
432 w += c->dimensions()[X_AXIS].length ();
433 ydims.unite (c->dimensions()[Y_AXIS]);
437 if (font_mag > 1 && font_mag < 7 )
440 style = style + String(" scaled \\magstep ") + to_str (font_mag);
441 w *= mag_steps[font_mag];
442 ydims *= mag_steps[font_mag];
445 DOUT << "\n" << to_str (w) << "\n";
446 m.dim_.x () = Interval (0, w);
450 Atom at (gh_list (text_scm_sym,
451 gh_str02scm (text.ch_C()),
453 at.font_ = ly_symbol (style);
463 Lookup::time_signature (int num, int den) const
465 String sty = "number";
466 Molecule n (text (sty, to_str (num)));
467 Molecule d (text (sty, to_str (den)));
468 n.do_center (X_AXIS);
469 d.do_center (X_AXIS);
473 m.add_at_edge (Y_AXIS, UP, n, 0.0);
474 m.add_at_edge (Y_AXIS, DOWN, d, 0.0);
479 m.do_center (Y_AXIS);
485 Lookup::staff_brace (Real y) const
489 Atom at (gh_list (pianobrace_scm_sym,
494 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
495 m.dim_[X_AXIS] = Interval (0,0);
501 Lookup::hairpin (Real width, bool decresc, bool continued) const
504 Real height = paper_l_->staffheight_f () / 6;
506 String hairpin = String (decresc ? "de" : "") + "crescendo";
507 Atom at (gh_list (ly_symbol (hairpin),
508 gh_double2scm (width),
509 gh_double2scm (height),
510 gh_double2scm (continued ? height/2 : 0.0),
512 m.dim_.x () = Interval (0, width);
513 m.dim_.y () = Interval (-2*height, 2*height);
520 Lookup::plet (Real dy , Real dx, Direction dir) const
523 SCM thick = tuplet_thick_scm_sym;
525 if (paper_l_->scope_p_->elem_b (thick))
527 t = paper_l_->get_realvar (thick);
530 Atom at (gh_list(tuplet_scm_sym,
542 Make a smooth curve along the points
545 Lookup::slur (Array<Offset> controls) const
547 Offset delta_off = controls[3]- controls[0];
551 int indices[] = {5,6,7,4,1,2,3,0};
553 for (int i= 0; i < 8; i++)
554 scontrols[i] = offset2scm (controls[indices[i]]);
557 Atom at (gh_list (ly_symbol ("bezier-sandwich"),
558 ly_quote_scm (array_to_list (scontrols, 8)),
561 m.dim_[X_AXIS] = Interval (0, delta_off[X_AXIS]);
562 m.dim_[Y_AXIS] = Interval (0 <? delta_off[Y_AXIS], 0 >? delta_off[Y_AXIS]);
568 Lookup::staff_bracket (Real y) const
571 Atom at ( gh_list (bracket_scm_sym,
575 m.dim_[Y_AXIS] = Interval (-y/2,y/2);
576 m.dim_[X_AXIS] = Interval (0,4 PT);
578 m.translate_axis (- 4. / 3. * m.dim_[X_AXIS].length (), X_AXIS);
583 Lookup::volta (Real w, bool last_b) const
586 SCM thick = volta_thick_scm_sym;
588 if (paper_l_->scope_p_->elem_b (thick))
590 t = paper_l_->get_realvar (thick);
592 Atom at (gh_list (volta_scm_sym,
598 Real interline_f = paper_l_->get_realvar (interline_scm_sym);
600 m.dim_[Y_AXIS] = Interval (-interline_f, interline_f);
601 m.dim_[X_AXIS] = Interval (0, w);
609 Lookup::special_ball (int j, String kind_of_ball) const
614 return afm_find (String ("noteheads-") + kind_of_ball);