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/* readonlybidirlist.vala
*
* Copyright (C) 2011 Maciej Piechotka
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Maciej Piechotka <uzytkownik2@gmail.com>
*/
internal class Gee.ReadOnlyBidirList<G> : Gee.ReadOnlyList<G>, BidirList<G> {
/**
* Constructs a read-only list that mirrors the content of the specified
* list.
*
* @param list the list to decorate.
*/
public ReadOnlyBidirList (BidirList<G> list) {
base (list);
}
/**
* {@inheritDoc}
*/
public BidirListIterator<G> bidir_list_iterator () {
return new Iterator<G> (((Gee.BidirList<G>) _collection).bidir_list_iterator ());
}
/**
* The read-only view of this list.
*/
public virtual new BidirList<G> read_only_view { owned get { return this; } }
private class Iterator<G> : ReadOnlyList.Iterator<G>, BidirIterator<G>, BidirListIterator<G> {
public Iterator (ListIterator<G> iterator) {
base (iterator);
}
public bool previous () {
return ((BidirIterator<G>) _iter).previous ();
}
public bool has_previous () {
return ((BidirIterator<G>) _iter).has_previous ();
}
public bool first () {
return ((BidirIterator<G>) _iter).first ();
}
public bool last () {
return ((BidirIterator<G>) _iter).last ();
}
public void insert (G item) {
assert_not_reached ();
}
}
}
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