add missing song_list.h

src/song_list.h

@@ -0,0 +1,78 @@
+/***************************************************************************
+ *   Copyright (C) 2008-2014 by Andrzej Rybczak                            *
+ *   electricityispower@gmail.com                                          *
+ *                                                                         *
+ *   This program 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 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program 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 this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
+ ***************************************************************************/
+
+#ifndef NCMPCPP_SONG_LIST_H
+#define NCMPCPP_SONG_LIST_H
+
+#include <boost/range/detail/any_iterator.hpp>
+#include <boost/tuple/tuple.hpp>
+#include "menu.h"
+#include "song.h"
+
+template <typename ValueT>
+using SongIteratorT = boost::range_detail::any_iterator<
+	ValueT,
+	boost::random_access_traversal_tag,
+	const ValueT, // const needed, see https://svn.boost.org/trac/boost/ticket/10493
+	std::ptrdiff_t
+>;
+
+typedef SongIteratorT<boost::tuple<NC::List::Properties &, MPD::Song *>> SongIterator;
+typedef SongIteratorT<boost::tuple<const NC::List::Properties &, const MPD::Song *>> ConstSongIterator;
+
+namespace Bit {
+const size_t Properties = 0;
+const size_t Song = 1;
+}
+
+struct SongList
+{
+	virtual SongIterator currentS() = 0;
+	virtual ConstSongIterator currentS() const = 0;
+	virtual SongIterator beginS() = 0;
+	virtual ConstSongIterator beginS() const = 0;
+	virtual SongIterator endS() = 0;
+	virtual ConstSongIterator endS() const = 0;
+
+	virtual std::vector<MPD::Song> getSelectedSongs() = 0;
+};
+
+inline SongIterator begin(SongList &list) { return list.beginS(); }
+inline ConstSongIterator begin(const SongList &list) { return list.beginS(); }
+inline SongIterator end(SongList &list) { return list.endS(); }
+inline ConstSongIterator end(const SongList &list) { return list.endS(); }
+
+struct SongMenu: NC::Menu<MPD::Song>, SongList
+{
+	SongMenu() { }
+	SongMenu(NC::Menu<MPD::Song> &&base)
+	: NC::Menu<MPD::Song>(std::move(base)) { }
+
+	virtual SongIterator currentS() OVERRIDE;
+	virtual ConstSongIterator currentS() const OVERRIDE;
+	virtual SongIterator beginS() OVERRIDE;
+	virtual ConstSongIterator beginS() const OVERRIDE;
+	virtual SongIterator endS() OVERRIDE;
+	virtual ConstSongIterator endS() const OVERRIDE;
+
+	virtual std::vector<MPD::Song> getSelectedSongs() OVERRIDE;
+};
+
+#endif // NCMPCPP_SONG_LIST_H