84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/***************************************************************************
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* Copyright (C) 2008-2014 by Andrzej Rybczak *
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* electricityispower@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "helpers/song_iterator_maker.h"
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#include "song_info.h"
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#include "utility/functional.h"
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namespace {
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template <bool Const>
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struct SongExtractor
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{
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typedef SongExtractor type;
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typedef typename NC::Menu<MPD::Song>::Item MenuItem;
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typedef typename std::conditional<Const, const MenuItem, MenuItem>::type Item;
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typedef typename std::conditional<Const, const MPD::Song, MPD::Song>::type Song;
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Song *operator()(Item &item) const
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{
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return &item.value();
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}
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};
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}
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SongIterator SongMenu::currentS()
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{
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return makeSongIterator_<MPD::Song>(current(), SongExtractor<false>());
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}
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ConstSongIterator SongMenu::currentS() const
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{
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return makeConstSongIterator_<MPD::Song>(current(), SongExtractor<true>());
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}
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SongIterator SongMenu::beginS()
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{
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return makeSongIterator_<MPD::Song>(begin(), SongExtractor<false>());
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}
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ConstSongIterator SongMenu::beginS() const
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{
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return makeConstSongIterator_<MPD::Song>(begin(), SongExtractor<true>());
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}
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SongIterator SongMenu::endS()
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{
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return makeSongIterator_<MPD::Song>(end(), SongExtractor<false>());
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}
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ConstSongIterator SongMenu::endS() const
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{
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return makeConstSongIterator_<MPD::Song>(end(), SongExtractor<true>());
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}
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std::vector<MPD::Song> SongMenu::getSelectedSongs()
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{
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std::vector<MPD::Song> result;
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for (auto it = begin(); it != end(); ++it)
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if (it->isSelected())
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result.push_back(it->value());
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if (result.empty() && !empty())
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result.push_back(current()->value());
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return result;
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}
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