2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
7 LilyPond is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 LilyPond is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
21 #include "line-interface.hh"
23 #include "output-def.hh"
26 #include "pointer-group-interface.hh"
27 #include "axis-group-interface.hh"
30 #include "horizontal-bracket.hh"
32 struct Figured_bass_continuation
34 DECLARE_GROB_INTERFACE ();
37 DECLARE_SCHEME_CALLBACK (print, (SCM));
38 DECLARE_SCHEME_CALLBACK (center_on_figures, (SCM));
41 MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 1);
43 Figured_bass_continuation::center_on_figures (SCM grob)
45 Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
46 extract_grob_set (me, "figures", figures);
48 return scm_from_double (0.0);
49 Grob *common = common_refpoint_of_array (figures, me, Y_AXIS);
51 Interval ext = Axis_group_interface::relative_group_extent (figures, common, Y_AXIS);
53 return scm_from_double (0.0);
54 return scm_from_double (ext.center () - me->relative_coordinate (common, Y_AXIS));
57 MAKE_SCHEME_CALLBACK (Figured_bass_continuation, print, 1);
59 Figured_bass_continuation::print (SCM grob)
61 Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
64 me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
65 * robust_scm2double (me->get_property ("thickness"), 1);
69 Grob *common = me->get_bound (LEFT)->common_refpoint (me->get_bound (RIGHT),
73 Item *bound = me->get_bound (d);
75 (d == LEFT && to_boolean (bound->get_property ("implicit")))
79 = robust_relative_extent (bound, common, X_AXIS)[extdir]
80 - me->relative_coordinate (common, X_AXIS);
82 while (flip (&d) != LEFT);
83 spanned.widen (- robust_scm2double (me->get_property ("padding"), 0.2));
86 if (!spanned.is_empty ())
87 extender = Line_interface::make_line (thick,
88 Offset (spanned[LEFT], 0),
89 Offset (spanned[RIGHT], 0));
91 return extender.smobbed_copy ();
94 ADD_INTERFACE (Figured_bass_continuation,
95 "Simple extender line between bounds.",