/*
- hara-kiri-vertical-group-spanner.cc -- implement Hara_kiri_group_spanner
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "hara-kiri-group-spanner.hh"
return Axis_group_interface::generic_group_extent (me, Y_AXIS);
}
+MAKE_SCHEME_CALLBACK (Hara_kiri_group_spanner, calc_skylines, 1);
+SCM
+Hara_kiri_group_spanner::calc_skylines (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ consider_suicide (me);
+ return Axis_group_interface::calc_skylines (smob);
+}
+
MAKE_SCHEME_CALLBACK (Hara_kiri_group_spanner, pure_height, 3);
SCM
Hara_kiri_group_spanner::pure_height (SCM smob, SCM start_scm, SCM end_scm)
if (request_suicide (me, start, end))
return ly_interval2scm (Interval ());
- return Axis_group_interface::pure_group_height (me, start, end);
+
+ return ly_interval2scm (Axis_group_interface::pure_group_height (me, start, end));
}
/* there is probably a way that doesn't involve re-implementing a binary
bool
Hara_kiri_group_spanner::request_suicide (Grob *me, int start, int end)
+{
+ if (!request_suicide_alone (me, start, end))
+ return false;
+
+ extract_grob_set (me, "keep-alive-with", friends);
+ for (vsize i = 0; i < friends.size (); ++i)
+ if (friends[i]->is_live () && !request_suicide_alone (friends[i], start, end))
+ return false;
+
+ return true;
+}
+
+bool
+Hara_kiri_group_spanner::request_suicide_alone (Grob *me, int start, int end)
{
if (!to_boolean (me->get_property ("remove-empty")))
return false;
for (vsize i = 0; i < worth.size (); i++)
{
- Interval_t<int> iv = worth[i]->spanned_rank_iv ();
+ Interval_t<int> iv = worth[i]->spanned_rank_interval ();
for (int j = iv[LEFT]; j <= iv[RIGHT]; j++)
ranks.push_back (j);
}
}
ADD_INTERFACE (Hara_kiri_group_spanner,
- "A group spanner that keeps track of interesting items. If it "
- "doesn't contain any after linebreaking, then it "
- "will remove itself and all its children.",
-
+ "A group spanner that keeps track of interesting items. If it"
+ " doesn't contain any after line breaking, it removes itself"
+ " and all its children.",
/* properties */
"items-worth-living "
"important-column-ranks "
+ "keep-alive-with "
"remove-empty "
"remove-first "
);