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"
19 #include "string-convert.hh"
20 #include "file-path.hh"
22 #include "lily-guile.hh"
23 #include "molecule.hh"
25 #include "font-metric.hh"
28 Lookup::beam (Real slope, Real width, Real thick)
30 Real height = slope * width;
31 Real min_y = (0 <? height) - thick/2;
32 Real max_y = (0 >? height) + thick/2;
36 Box b( Interval (0, width),
37 Interval (min_y, max_y));
40 SCM at = gh_list (ly_symbol2scm ("beam"),
41 gh_double2scm (width),
42 gh_double2scm (slope),
43 gh_double2scm (thick),
45 return Molecule (b, at);
51 Lookup::dashed_slur (Bezier b, Real thick, Real dash)
55 for (int i= 4; i -- ;)
57 l = gh_cons (ly_offset2scm (b.control_[i]), l);
60 SCM at = (gh_list (ly_symbol2scm ("dashed-slur"),
61 gh_double2scm (thick),
66 Box box (Interval(0,0),Interval( 0,0));
67 return Molecule (box, at);
76 return Molecule (b, SCM_EOL);
81 Lookup::filledbox (Box b )
83 SCM at = (gh_list (ly_symbol2scm ("filledbox"),
84 gh_double2scm (-b[X_AXIS][LEFT]),
85 gh_double2scm (b[X_AXIS][RIGHT]),
86 gh_double2scm (-b[Y_AXIS][DOWN]),
87 gh_double2scm (b[Y_AXIS][UP]),
90 return Molecule ( b,at);
94 Lookup::frame (Box b, Real thick)
103 Axis o = Axis ((a+1)%NO_AXES);
106 edges[a] = b[a][d] + 0.5 * thick * Interval (-1, 1);
107 edges[o][DOWN] = b[o][DOWN] - thick/2;
108 edges[o][UP] = b[o][UP] + thick/2;
111 m.add_molecule (filledbox (edges));
113 while (flip (&d) != LEFT);
121 Make a smooth curve along the points
124 Lookup::slur (Bezier curve, Real curvethick, Real linethick)
126 Real alpha = (curve.control_[3] - curve.control_[0]).arg ();
130 back.control_[1] += curvethick * complex_exp (Offset (0, alpha + M_PI/2));
131 back.control_[2] += curvethick * complex_exp (Offset (0, alpha + M_PI/2));
136 scontrols[ i ] = ly_offset2scm(back.control_[i]);
138 scontrols[i+4] = ly_offset2scm (curve.control_[i]);
141 Need the weird order b.o. the way PS want its arguments
143 int indices[]= {5, 6, 7, 4, 1, 2, 3, 0};
145 for (int i= 8; i--; )
147 list = gh_cons (scontrols[indices[i]], list);
151 SCM at = (gh_list (ly_symbol2scm ("bezier-sandwich"),
153 gh_double2scm (linethick),
156 Box b ( curve.extent (X_AXIS), curve.extent (Y_AXIS));
157 return Molecule (b, at);
161 Lookup::accordion (SCM s, Real staff_space, Font_metric *fm)
164 String sym = ly_scm2string(gh_car (s));
165 String reg = ly_scm2string(gh_car (gh_cdr(s)));
167 if (sym == "Discant")
169 Molecule r = fm->find_by_name ("accordion-accDiscant");
171 if (reg.left_str(1) == "F")
173 Molecule d = fm->find_by_name ("accordion-accDot");
174 d.translate_axis(staff_space * 2.5 PT, Y_AXIS);
176 reg = reg.right_str(reg.length_i()-1);
179 if (reg.left_str(3) == "EEE")
182 reg = reg.right_str(reg.length_i()-3);
184 else if (reg.left_str(2) == "EE")
187 reg = reg.right_str(reg.length_i()-2);
189 else if (reg.left_str(2) == "Eh")
192 reg = reg.right_str(reg.length_i()-2);
194 else if (reg.left_str(1) == "E")
197 reg = reg.right_str(reg.length_i()-1);
201 Molecule d = fm->find_by_name ("accordion-accDot");
202 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
207 Molecule d = fm->find_by_name ("accordion-accDot");
208 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
209 d.translate_axis(0.8 * staff_space PT, X_AXIS);
214 Molecule d = fm->find_by_name ("accordion-accDot");
215 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
216 d.translate_axis(-0.8 * staff_space PT, X_AXIS);
219 if (reg.left_str(2) == "SS")
221 Molecule d = fm->find_by_name ("accordion-accDot");
222 d.translate_axis(0.5 * staff_space PT, Y_AXIS);
223 d.translate_axis(0.4 * staff_space PT, X_AXIS);
225 d.translate_axis(-0.8 * staff_space PT, X_AXIS);
227 reg = reg.right_str(reg.length_i()-2);
229 if (reg.left_str(1) == "S")
231 Molecule d = fm->find_by_name ("accordion-accDot");
232 d.translate_axis(0.5 * staff_space PT, Y_AXIS);
234 reg = reg.right_str(reg.length_i()-1);
237 else if (sym == "Freebase")
239 Molecule r = fm->find_by_name ("accordion-accFreebase");
241 if (reg.left_str(1) == "F")
243 Molecule d = fm->find_by_name ("accordion-accDot");
244 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
246 reg = reg.right_str(reg.length_i()-1);
250 Molecule d = fm->find_by_name ("accordion-accDot");
251 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
255 else if (sym == "Bayanbase")
257 Molecule r = fm->find_by_name ("accordion-accBayanbase");
259 if (reg.left_str(1) == "T")
261 Molecule d = fm->find_by_name ("accordion-accDot");
262 d.translate_axis(staff_space * 2.5 PT, Y_AXIS);
264 reg = reg.right_str(reg.length_i()-1);
266 /* include 4' reed just for completeness. You don't want to use this. */
267 if (reg.left_str(1) == "F")
269 Molecule d = fm->find_by_name ("accordion-accDot");
270 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
272 reg = reg.right_str(reg.length_i()-1);
274 if (reg.left_str(2) == "EE")
276 Molecule d = fm->find_by_name ("accordion-accDot");
277 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
278 d.translate_axis(0.4 * staff_space PT, X_AXIS);
280 d.translate_axis(-0.8 * staff_space PT, X_AXIS);
282 reg = reg.right_str(reg.length_i()-2);
284 if (reg.left_str(1) == "E")
286 Molecule d = fm->find_by_name ("accordion-accDot");
287 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
289 reg = reg.right_str(reg.length_i()-1);
292 else if (sym == "Stdbase")
294 Molecule r = fm->find_by_name ("accordion-accStdbase");
296 if (reg.left_str(1) == "T")
298 Molecule d = fm->find_by_name ("accordion-accDot");
299 d.translate_axis(staff_space * 3.5 PT, Y_AXIS);
301 reg = reg.right_str(reg.length_i()-1);
303 if (reg.left_str(1) == "F")
305 Molecule d = fm->find_by_name ("accordion-accDot");
306 d.translate_axis(staff_space * 2.5 PT, Y_AXIS);
308 reg = reg.right_str(reg.length_i()-1);
310 if (reg.left_str(1) == "M")
312 Molecule d = fm->find_by_name ("accordion-accDot");
313 d.translate_axis(staff_space * 2 PT, Y_AXIS);
314 d.translate_axis(staff_space PT, X_AXIS);
316 reg = reg.right_str(reg.length_i()-1);
318 if (reg.left_str(1) == "E")
320 Molecule d = fm->find_by_name ("accordion-accDot");
321 d.translate_axis(staff_space * 1.5 PT, Y_AXIS);
323 reg = reg.right_str(reg.length_i()-1);
325 if (reg.left_str(1) == "S")
327 Molecule d = fm->find_by_name ("accordion-accDot");
328 d.translate_axis(staff_space * 0.5 PT, Y_AXIS);
330 reg = reg.right_str(reg.length_i()-1);
333 /* ugh maybe try to use regular font for S.B. and B.B and only use one font
335 else if (sym == "SB")
337 Molecule r = fm->find_by_name ("accordion-accSB");
340 else if (sym == "BB")
342 Molecule r = fm->find_by_name ("accordion-accBB");
345 else if (sym == "OldEE")
347 Molecule r = fm->find_by_name ("accordion-accOldEE");
350 else if (sym == "OldEES")
352 Molecule r = fm->find_by_name ("accordion-accOldEES");