2 multi-measure-rest.cc -- implement Multi_measure_rest
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
10 #include "multi-measure-rest.hh"
12 #include "paper-def.hh"
13 #include "paper-column.hh" // urg
17 #include "molecule.hh"
19 #include "group-interface.hh"
21 #include "staff-symbol-referencer.hh"
23 Multi_measure_rest::set_interface (Score_element*me)
25 me->set_elt_property ("columns", SCM_EOL);
28 Multi_measure_rest::Multi_measure_rest (SCM s)
34 * variable-sized multi-measure rest symbol: |====| ??
36 MAKE_SCHEME_CALLBACK(Multi_measure_rest,brew_molecule);
38 Multi_measure_rest::brew_molecule (SCM smob)
40 Score_element *me = unsmob_element (smob);
41 Spanner * sp = dynamic_cast<Spanner*> (me);
43 = Staff_symbol_referencer::staff_space (me);
49 Item * col = sp->get_bound (d)->column_l ();
51 Interval coldim = col->extent (X_AXIS)
52 + col->relative_coordinate (0, X_AXIS);
54 sp_iv[d] = coldim[-d] ;
56 while ((flip (&d)) != LEFT);
60 Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
62 we gotta stay clear of sp_iv, so move a bit to the right if
65 x_off += (sp_iv[LEFT] - rx) >? 0;
70 x_off += sp_iv.length ()/ 2;
76 SCM m (me->get_elt_property ("measure-count"));
79 measures = gh_scm2int (m);
83 if (measures <= me->paper_l() ->get_var ("multi_measure_rest_expand_limit"))
86 Build a rest from smaller parts. Distances inbetween are
87 really variable, see Wanske pp. 125 */
109 Real pad = s.empty_b ()
110 ? 0.0 : me->paper_l ()->get_var ("multi_measure_rest_padding");
112 Molecule r (me->lookup_l ()->afm_find ("rests-" + to_str (k)));
114 r.translate_axis (staff_space, Y_AXIS);
116 s.add_at_edge (X_AXIS, RIGHT, r, pad);
120 s.align_to (X_AXIS, CENTER);
124 String idx = ("rests-") + to_str (-4);
125 s = me->lookup_l ()->afm_find (idx);
128 mol.add_molecule (s);
132 Molecule s (me->lookup_l ()->text ("number", to_str (measures), me->paper_l ()));
133 s.align_to (X_AXIS, CENTER);
134 s.translate_axis (3.0 * staff_space, Y_AXIS);
135 mol.add_molecule (s);
137 mol.translate_axis (x_off, X_AXIS);
138 return mol.create_scheme();
142 UGH. JUNKME elt prop "columns" isn't really needed.
145 Multi_measure_rest::add_column (Score_element*me,Item* c)
147 Pointer_group_interface gi (me, "columns");
150 add_bound_item (dynamic_cast<Spanner*> (me),c);
155 Multi_measure_rest::get_rods () const
159 if (!(get_bound (LEFT) && get_bound (RIGHT)))
161 programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
165 Item * l = get_bound (LEFT)->column_l ();
166 Item * r = get_bound (RIGHT)->column_l ();
167 Item * lb = l->find_prebroken_piece (RIGHT);
168 Item * rb = r->find_prebroken_piece (LEFT);
170 Item* combinations[4][2]={{l,r}, {lb,r}, {l,rb},{lb,rb}};
171 for (int i=0; i < 4; i++)
173 Item * l = combinations[i][0];
174 Item *r = combinations[i][1];
180 rod.item_l_drul_[LEFT] = l;
181 rod.item_l_drul_[RIGHT] = r;
184 should do something more advanced.
186 rod.distance_f_ = l->extent (X_AXIS)[BIGGER] - r->extent (X_AXIS)[SMALLER]
187 + paper_l ()->get_var ("multi_measure_rest_x_minimum");