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/***************************************************************************
* 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. *
***************************************************************************/
#include "helpers/song_iterator_maker.h"
#include "song_info.h"
#include "utility/functional.h"
namespace {
template <bool Const>
struct SongExtractor
{
typedef SongExtractor type;
typedef typename NC::Menu<MPD::Song>::Item MenuItem;
typedef typename std::conditional<Const, const MenuItem, MenuItem>::type Item;
typedef typename std::conditional<Const, const MPD::Song, MPD::Song>::type Song;
Song *operator()(Item &item) const
{
return &item.value();
}
};
}
SongIterator SongMenu::currentS()
{
return makeSongIterator_<MPD::Song>(current(), SongExtractor<false>());
}
ConstSongIterator SongMenu::currentS() const
{
return makeConstSongIterator_<MPD::Song>(current(), SongExtractor<true>());
}
SongIterator SongMenu::beginS()
{
return makeSongIterator_<MPD::Song>(begin(), SongExtractor<false>());
}
ConstSongIterator SongMenu::beginS() const
{
return makeConstSongIterator_<MPD::Song>(begin(), SongExtractor<true>());
}
SongIterator SongMenu::endS()
{
return makeSongIterator_<MPD::Song>(end(), SongExtractor<false>());
}
ConstSongIterator SongMenu::endS() const
{
return makeConstSongIterator_<MPD::Song>(end(), SongExtractor<true>());
}
std::vector<MPD::Song> SongMenu::getSelectedSongs()
{
std::vector<MPD::Song> result;
for (auto it = begin(); it != end(); ++it)
if (it->isSelected())
result.push_back(it->value());
if (result.empty() && !empty())
result.push_back(current()->value());
return result;
}
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