2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "axis-group-interface.hh"
21 #include "lily-guile.hh"
23 #include "grob-array.hh"
25 LY_DEFINE (ly_relative_group_extent, "ly:relative-group-extent",
26 3, 0, 0, (SCM elements, SCM common, SCM axis),
27 "Determine the extent of @var{elements} relative to @var{common} in the"
28 " @var{axis} direction.")
30 Grob_array *ga = Grob_array::unsmob (elements);
32 SCM_ASSERT_TYPE (ga || scm_is_pair (elements), elements, SCM_ARG1, __FUNCTION__, "list or Grob_array");
33 LY_ASSERT_SMOB (Grob, common, 2);
34 LY_ASSERT_TYPE (is_axis, axis, 3);
39 for (SCM s = elements; scm_is_pair (s); s = scm_cdr (s))
40 elts.push_back (Grob::unsmob (scm_car (s)));
43 Interval ext = Axis_group_interface::relative_group_extent (ga ? ga->array () : elts,
44 Grob::unsmob (common),
45 (Axis) scm_to_int (axis));
46 return ly_interval2scm (ext);
49 LY_DEFINE (ly_generic_bound_extent, "ly:generic-bound-extent",
50 2, 0, 0, (SCM grob, SCM common),
51 "Determine the extent of @var{grob} relative to @var{common} along"
52 " the X axis, finding its extent as a bound when it a has"
53 " @code{bound-alignment-interfaces} property list set and"
54 " otherwise the full extent.")
56 LY_ASSERT_SMOB (Grob, grob, 1);
57 LY_ASSERT_SMOB (Grob, common, 2);
59 Interval ext = Axis_group_interface::generic_bound_extent (Grob::unsmob (grob), Grob::unsmob (common), X_AXIS);
60 return ly_interval2scm (ext);
63 LY_DEFINE (ly_axis_group_interface__add_element, "ly:axis-group-interface::add-element",
64 2, 0, 0, (SCM grob, SCM grob_element),
65 "Set @var{grob} the parent of @var{grob-element} on all axes of"
68 LY_ASSERT_SMOB (Grob, grob, 1);
69 LY_ASSERT_SMOB (Grob, grob_element, 2);
70 Axis_group_interface::add_element (Grob::unsmob (grob), Grob::unsmob (grob_element));
71 return SCM_UNSPECIFIED;