2 abbrev.cc -- implement Abbreviation
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
13 #include "paper-def.hh"
17 Abbreviation::Abbreviation ()
24 Abbreviation::do_print () const
26 DOUT << "abbrev_flags_i_ " << abbrev_flags_i_;
30 Abbreviation::brew_molecule_p () const
32 Real interbeam_f = paper ()->interbeam_f (stem_l_->mult_i_);
33 Real w = 1.5 * lookup_l ()->ball (2).dim_.x ().length ();
34 Real internote_f = paper ()->internote_f ();
35 Real beam_f = paper ()->beam_thickness_f ();
38 Real slope_f = internote_f / 4 / internote_f;
40 if (stem_l_ && stem_l_->beam_l_) {
41 slope_f = stem_l_->beam_l_->slope_f_;
42 // ugh, rather calc from Abbreviation_req
43 beams_i = stem_l_->beams_right_i_ >? stem_l_->beams_left_i_;
45 Real sl = slope_f * internote_f;
47 Atom a (lookup_l ()->beam (sl, w, beam_f));
48 a.translate (Offset (-w/2, w / 2 * slope_f));
50 Molecule *beams= new Molecule;
51 for (int i = 0; i < abbrev_flags_i_; i++)
54 b.translate_axis (interbeam_f * i, Y_AXIS);
59 beams->translate_axis (-beams->extent ()[Y_AXIS].center (), Y_AXIS);
61 beams->translate_axis (-(beams->extent ()[Y_AXIS].min () +
62 beams->extent ()[Y_AXIS].max ()) / 2 , Y_AXIS);
69 beams->translate (Offset(stem_l_->hpos_f () - hpos_f (),
70 stem_l_->stem_end_f () * internote_f -
71 stem_l_->beam_l_->dir_ * beams_i * interbeam_f));
77 Beams should intersect one beamthickness below staff end
79 Real dy = - beams->extent ()[Y_AXIS].length () / 2 * stem_l_->dir_;
81 dy += stem_l_->stem_end_f ();
83 // urg: can't: stem should be stetched first
84 // dy -= paper ()->beam_thickness_f () * stem_l_->dir_;
85 beams->translate (Offset(stem_l_->hpos_f () - hpos_f (), dy));
90 urg: this is wrong, even if coded correctly
92 Try to be in the middle of the open part of the stem and
97 Direction sd = stem_l_->dir_;
98 // watch out: chord_start_f is (the only one) not in dim(internote)
99 Interval empty_stem (stem_l_->chord_start_f () / internote_f * sd
100 + interline_f, (stem_l_->stem_end_f ()* sd));
103 Interval instaff = empty_stem;
105 huh? i don't understand, hw
107 .fly= \stemup d'''2:16
108 instaff.intersect (Interval (-4,4));
111 if (stem_l_->get_default_dir () == stem_l_->dir_)
112 instaff.intersect (Interval (-4,4));
114 if (instaff.empty_b ())
115 instaff = empty_stem;
118 instaff *= internote_f;
119 beams->translate (Offset(stem_l_->hpos_f () - hpos_f (),
129 Abbreviation::do_substitute_dependent (Score_element*o, Score_element*n)
132 stem_l_ = n ? dynamic_cast<Stem*> (n) : 0;
137 Abbreviation::set_stem (Stem *s)