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/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 2005--2015 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 "pointer-group-interface.hh"
#include "grob-array.hh"
#include "grob.hh"
int
Pointer_group_interface::count (Grob *me, SCM sym)
{
Grob_array *arr = unsmob<Grob_array> (me->internal_get_object (sym));
return arr ? arr->size () : 0;
}
void
Pointer_group_interface::add_grob (Grob *me, SCM sym, SCM p)
{
add_grob (me, sym, unsmob<Grob> (p));
}
void
Pointer_group_interface::set_ordered (Grob *me, SCM sym, bool ordered)
{
Grob_array *arr = get_grob_array (me, sym);
arr->set_ordered (ordered);
}
Grob_array *
Pointer_group_interface::get_grob_array (Grob *me, SCM sym)
{
SCM scm_arr = me->internal_get_object (sym);
Grob_array *arr = unsmob<Grob_array> (scm_arr);
if (!arr)
{
scm_arr = Grob_array::make_array ();
arr = unsmob<Grob_array> (scm_arr);
me->set_object (sym, scm_arr);
}
return arr;
}
Grob *
Pointer_group_interface::find_grob (Grob *me, SCM sym, bool (*pred) (Grob *))
{
Grob_array *arr = get_grob_array (me, sym);
for (vsize i = 0; i < arr->size (); i++)
if (pred (arr->grob (i)))
return arr->grob (i);
return 0;
}
void
Pointer_group_interface::add_grob (Grob *me, SCM sym, Grob *p)
{
Grob_array *arr = get_grob_array (me, sym);
arr->add (p);
}
void
Pointer_group_interface::add_unordered_grob (Grob *me, SCM sym, Grob *p)
{
Grob_array *arr = get_grob_array (me, sym);
arr->add (p);
arr->set_ordered (false);
}
static vector<Grob *> empty_array;
vector<Grob *> const &
ly_scm2link_array (SCM x)
{
Grob_array *arr = unsmob<Grob_array> (x);
return arr ? arr->array () : empty_array;
}
vector<Grob *> const &
internal_extract_grob_array (Grob const *elt, SCM symbol)
{
return elt
? ly_scm2link_array (elt->internal_get_object (symbol))
: empty_array;
}
vector<Item *>
internal_extract_item_array (Grob const *elt, SCM symbol)
{
Grob_array *arr = unsmob<Grob_array> (elt->internal_get_object (symbol));
vector<Item *> items;
for (vsize i = 0; arr && i < arr->size (); i++)
items.push_back (arr->item (i));
return items;
}
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