2 abbrev.cc -- implement Abbreviation
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
13 #include "paper-def.hh"
18 Abbreviation::Abbreviation ()
25 Abbreviation::do_print () const
27 DOUT << "abbrev_flags_i_ " << abbrev_flags_i_;
31 Abbreviation::do_brew_molecule_p () const
33 Real interbeam_f = paper ()->interbeam_f (stem_l_->mult_i_);
34 Real w = 1.5 * lookup_l ()->ball (2).dim_.x ().length ();
35 Real internote_f = paper ()->internote_f ();
36 Real beam_f = paper ()->beam_thickness_f ();
39 Real slope_f = internote_f / 4 / internote_f;
41 if (stem_l_ && stem_l_->beam_l_) {
42 slope_f = stem_l_->beam_l_->slope_f_;
43 // ugh, rather calc from Abbreviation_req
44 beams_i = stem_l_->beams_i_drul_[RIGHT] >? stem_l_->beams_i_drul_[LEFT];
46 Real sl = slope_f * internote_f;
48 Molecule a (lookup_l ()->beam (sl, w, beam_f));
49 a.translate (Offset (-w/2, w / 2 * slope_f));
51 Molecule *beams= new Molecule;
52 for (int i = 0; i < abbrev_flags_i_; i++)
55 b.translate_axis (interbeam_f * i, Y_AXIS);
56 beams->add_molecule (b);
58 beams->translate_axis (-beams->extent ()[Y_AXIS].center (), Y_AXIS);
64 beams->translate (Offset(stem_l_->hpos_f () - hpos_f (),
65 stem_l_->stem_end_f () * internote_f -
66 stem_l_->beam_l_->dir_ * beams_i * interbeam_f));
72 Beams should intersect one beamthickness below staff end
74 Real dy = - beams->extent ()[Y_AXIS].length () / 2 * stem_l_->dir_;
76 dy += stem_l_->stem_end_f ();
78 // urg: can't: stem should be stetched first
79 // dy -= paper ()->beam_thickness_f () * stem_l_->dir_;
80 beams->translate (Offset(stem_l_->hpos_f () - hpos_f (), dy));
85 urg: this is wrong, even if coded correctly
87 Try to be in the middle of the open part of the stem and
92 Direction sd = stem_l_->dir_;
93 // watch out: chord_start_f is (the only one) not in dim(internote)
94 Interval empty_stem (stem_l_->chord_start_f () / internote_f * sd
95 + interline_f, (stem_l_->stem_end_f ()* sd));
98 Interval instaff = empty_stem;
100 huh? i don't understand, hw
102 .fly= \stemup d'''2:16
103 instaff.intersect (Interval (-4,4));
106 if (stem_l_->get_default_dir () == stem_l_->dir_)
107 instaff.intersect (Interval (-4,4));
109 if (instaff.empty_b ())
110 instaff = empty_stem;
113 instaff *= internote_f;
114 beams->translate (Offset(stem_l_->hpos_f () - hpos_f (),
124 Abbreviation::do_substitute_element_pointer (Score_element*o, Score_element*n)
127 stem_l_ = dynamic_cast<Stem*> (n);
132 Abbreviation::set_stem (Stem *s)