2 bow.cc -- implement Bow
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 Jan Nieuwenhuizen <janneke@gnu.org>
12 #include "paper-def.hh"
13 #include "molecule.hh"
22 dy_f_drul_[LEFT] = dy_f_drul_[RIGHT] = 0.0;
23 dx_f_drul_[LEFT] = dx_f_drul_[RIGHT] = 0.0;
26 vertical_align_drul_[MIN] = 0;
27 vertical_align_drul_[MAX] = -1;
31 Bow::do_brew_molecule_p () const
33 Real thick = paper_l ()->get_var ("slur_thickness");
34 Array<Offset> c = get_controls ();
35 Real dy = c[3].y () - c[0].y ();
38 SCM d = get_elt_property (dashed_scm_sym);
40 a = lookup_l ()->slur (c);
42 a = lookup_l ()->dashed_slur (c, thick, gh_scm2int (SCM_CDR(d)));
44 if (check_debug && !monitor->silent_b ("Bow"))
47 cout << "******" << i++ << "******" << endl;
48 cout << "c0.y: " << c[0].y () << endl;
49 cout << "c3.y: " << c[3].y () << endl;
50 cout << "dy: " << dy << endl;
51 cout << "dy_f_l: " << dy_f_drul_[LEFT] << endl;
52 cout << "dy_f_r: " << dy_f_drul_[RIGHT] << endl;
53 cout << "dy_f: " << dy_f_drul_[RIGHT] - dy_f_drul_[LEFT] << endl;
55 a.translate (Offset (dx_f_drul_[LEFT], dy_f_drul_[LEFT]));
57 Molecule* mol_p = new Molecule;
58 mol_p->add_molecule (a);
59 mol_p->translate_axis (-interstaff_f_, Y_AXIS);
67 Real dy = dy_f_drul_[RIGHT] - dy_f_drul_[LEFT];
69 Real dx = extent(X_AXIS).length ();
71 return Offset (dx / 2, dy);
77 Ugh. Control points are too crude measures.
80 Bow::do_height () const
83 Array<Offset> c (get_controls());
84 for (int i=0; i < c.size (); i++)
86 Real y = c[i][Y_AXIS];
87 iv.unite (Interval (y,y));
95 Bow::get_controls () const
97 Bezier_bow b (paper_l ());
98 b.set (get_encompass_offset_arr (), dir_);
100 Array<Offset> controls;
101 controls.set_size (8);
102 for (int i = 0; i < 4; i++)
103 controls[i] = b.control_[i];
104 for (int i = 0; i < 4; i++)
105 controls[i + 4] = b.return_[i];
110 Bow::get_encompass_offset_arr () const
112 Offset d (dx_f_drul_[RIGHT] - dx_f_drul_[LEFT],
113 dy_f_drul_[RIGHT] - dy_f_drul_[LEFT]);
114 d.x() += extent (X_AXIS). length ();
117 notes.push (Offset (0, 0));