/*
- 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--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1998--2015 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"
SCM
Hara_kiri_group_spanner::y_extent (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
consider_suicide (me);
return Axis_group_interface::generic_group_extent (me, Y_AXIS);
}
SCM
Hara_kiri_group_spanner::calc_skylines (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
consider_suicide (me);
return Axis_group_interface::calc_skylines (smob);
}
SCM
Hara_kiri_group_spanner::pure_height (SCM smob, SCM start_scm, SCM end_scm)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
int start = robust_scm2int (start_scm, 0);
int end = robust_scm2int (end_scm, INT_MAX);
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
if (val >= min && val <= max)
return true;
else if (val < min)
- return find_in_range (vector, mid+1, hi, min, max);
+ return find_in_range (vector, mid + 1, hi, min, max);
return find_in_range (vector, low, mid, min, max);
}
bool
Hara_kiri_group_spanner::request_suicide (Grob *me, int start, int end)
+{
+ extract_grob_set (me, "make-dead-when", foes);
+ for (vsize i = 0; i < foes.size (); i++)
+ if (foes[i]->is_live () && !request_suicide_alone (foes[i], start, end))
+ return true;
+
+ 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;
{
int len = scm_c_vector_length (important);
if (find_in_range (important, 0, len, start, end))
- return false;
+ return false;
}
else /* build the important-columns-cache */
{
vector<int> ranks;
for (vsize i = 0; i < worth.size (); i++)
- {
- Interval_t<int> iv = worth[i]->spanned_rank_iv ();
- for (int j = iv[LEFT]; j <= iv[RIGHT]; j++)
- ranks.push_back (j);
- }
+ {
+ Interval_t<int> iv = worth[i]->spanned_rank_interval ();
+ for (int j = iv[LEFT]; j <= iv[RIGHT]; j++)
+ ranks.push_back (j);
+ }
vector_sort (ranks, less<int> ());
uniq (ranks);
SCM scm_vec = scm_c_make_vector (ranks.size (), SCM_EOL);
for (vsize i = 0; i < ranks.size (); i++)
- scm_vector_set_x (scm_vec, scm_from_int (i), scm_from_int (ranks[i]));
+ scm_vector_set_x (scm_vec, scm_from_int (i), scm_from_int (ranks[i]));
me->set_property ("important-column-ranks", scm_vec);
return request_suicide (me, start, end);
void
Hara_kiri_group_spanner::consider_suicide (Grob *me)
{
- Spanner *sp = dynamic_cast<Spanner*> (me);
- int left = sp->get_bound (LEFT)->get_column ()->get_rank ();
- int right = sp->get_bound (RIGHT)->get_column ()->get_rank ();
+ Spanner *sp = dynamic_cast<Spanner *> (me);
+ int left = 0;
+ int right = INT_MAX;
+ if (Item *l = sp->get_bound (LEFT))
+ left = l->get_column ()->get_rank ();
+ if (Item *r = sp->get_bound (RIGHT))
+ right = r->get_column ()->get_rank ();
if (!request_suicide (me, left, right))
return;
- vector<Grob*> childs;
+ vector<Grob *> childs;
Axis_group_interface::get_children (me, &childs);
for (vsize i = 0; i < childs.size (); i++)
childs[i]->suicide ();
SCM
Hara_kiri_group_spanner::force_hara_kiri_callback (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
consider_suicide (me);
return scm_from_double (0.0);
}
SCM
Hara_kiri_group_spanner::force_hara_kiri_in_y_parent_callback (SCM smob)
{
- Grob *daughter = unsmob_grob (smob);
+ Grob *daughter = unsmob<Grob> (smob);
force_hara_kiri_callback (daughter->get_parent (Y_AXIS)->self_scm ());
return scm_from_double (0.0);
}
}
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.",
-
-
- /* properties */
- "items-worth-living "
- "important-column-ranks "
- "remove-empty "
- "remove-first "
- );
-
-
+ "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. Greater control can be exercised via"
+ " @code{remove-layer} which can prioritize layers so only the"
+ " lowest-numbered non-empty layer is retained; make the layer"
+ " independent of the group; or make it dependent on any other"
+ " member of the group",
+
+ /* properties */
+ "items-worth-living "
+ "important-column-ranks "
+ "keep-alive-with "
+ "make-dead-when "
+ "remove-empty "
+ "remove-first "
+ "remove-layer "
+ );
projects / lilypond.git / blobdiff