2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2011 Mike Solomon <mike@apollinemike.com>
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/>.
21 #include "grob-array.hh"
22 #include "pointer-group-interface.hh"
23 #include "pure-from-neighbor-interface.hh"
27 MAKE_SCHEME_CALLBACK (Pure_from_neighbor_interface, filter_elements, 1);
29 Pure_from_neighbor_interface::filter_elements (SCM smob)
31 Grob *me = unsmob_grob (smob);
32 extract_grob_set (me, "elements", elts);
33 vector<Grob *> new_elts;
34 Interval_t<int> srl = me->get_system ()->spanned_rank_interval ();
35 for (vsize i = 0; i < elts.size (); i++)
36 if (srl.contains (elts[i]->spanned_rank_interval ()[LEFT]))
37 new_elts.push_back (elts[i]);
39 SCM elements_scm = me->get_object ("elements");
40 if (Grob_array::unsmob (elements_scm))
43 = unsmob_grob_array (elements_scm)->array_reference ();
50 ADD_INTERFACE (Pure_from_neighbor_interface,
51 "A collection of routines to allow for objects' pure"
52 "heights and heights to be calculated based on the"
53 "heights of the objects' neighbors.",
57 "pure-relevant-grobs "