2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2011 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"
29 #include "horizontal-bracket.hh"
31 struct Figured_bass_continuation
33 DECLARE_GROB_INTERFACE ();
36 DECLARE_SCHEME_CALLBACK (print, (SCM));
37 DECLARE_SCHEME_CALLBACK (center_on_figures, (SCM));
40 MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 1);
42 Figured_bass_continuation::center_on_figures (SCM grob)
44 Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (grob));
45 extract_grob_set (me, "figures", figures);
47 return scm_from_double (0.0);
48 Grob *common = common_refpoint_of_array (figures, me, Y_AXIS);
50 Interval ext = Axis_group_interface::relative_group_extent (figures, common, Y_AXIS);
52 return scm_from_double (0.0);
53 return scm_from_double (ext.center () - me->relative_coordinate (common, Y_AXIS));
56 MAKE_SCHEME_CALLBACK (Figured_bass_continuation, print, 1);
58 Figured_bass_continuation::print (SCM grob)
60 Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (grob));
63 = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
64 * robust_scm2double (me->get_property ("thickness"), 1);
68 Grob *common = me->get_bound (LEFT)->common_refpoint (me->get_bound (RIGHT),
72 Item *bound = me->get_bound (d);
74 = (d == LEFT && to_boolean (bound->get_property ("implicit")))
78 = robust_relative_extent (bound, common, X_AXIS)[extdir]
79 - me->relative_coordinate (common, X_AXIS);
81 while (flip (&d) != LEFT);
82 spanned.widen (- robust_scm2double (me->get_property ("padding"), 0.2));
85 if (!spanned.is_empty ())
86 extender = Line_interface::make_line (thick,
87 Offset (spanned[LEFT], 0),
88 Offset (spanned[RIGHT], 0));
90 return extender.smobbed_copy ();
93 ADD_INTERFACE (Figured_bass_continuation,
94 "Simple extender line between bounds.",