modules/gui/qt/medialibrary/mlalbumtrackmodel.hpp

   1 /*****************************************************************************
   2  * Copyright (C) 2019 VLC authors and VideoLAN
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
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   7  * ( at your option ) any later version.
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   9  * This program is distributed in the hope that it will be useful,
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  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  17  *****************************************************************************/
  18
  19 #ifndef MLTRACKMODEL_HPP
  20 #define MLTRACKMODEL_HPP
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include <QObject>
  27 #include "mlbasemodel.hpp"
  28 #include "mlalbumtrack.hpp"
  29
  30
  31 class MLAlbumTrackModel : public MLSlidingWindowModel<MLAlbumTrack>
  32 {
  33     Q_OBJECT
  34
  35 public:
  36     enum Roles {
  37         TRACK_ID = Qt::UserRole + 1,
  38         TRACK_TITLE,
  39         TRACK_COVER,
  40         TRACK_NUMBER,
  41         TRACK_DISC_NUMBER,
  42         TRACK_DURATION,
  43         TRACK_DURATION_SHORT,
  44         TRACK_ALBUM,
  45         TRACK_ARTIST,
  46
  47         TRACK_TITLE_FIRST_SYMBOL,
  48         TRACK_ALBUM_FIRST_SYMBOL,
  49         TRACK_ARTIST_FIRST_SYMBOL,
  50     };
  51
  52 public:
  53     explicit MLAlbumTrackModel(QObject *parent = nullptr);
  54
  55     virtual ~MLAlbumTrackModel() = default;
  56
  57     QVariant data(const QModelIndex &index, int role) const override;
  58     QHash<int, QByteArray> roleNames() const override;
  59
  60 protected:
  61     ListCacheLoader<std::unique_ptr<MLAlbumTrack>> *createLoader() const override;
  62
  63 private:
  64     vlc_ml_sorting_criteria_t roleToCriteria(int role) const override;
  65     vlc_ml_sorting_criteria_t nameToCriteria(QByteArray name) const override;
  66     QByteArray criteriaToName(vlc_ml_sorting_criteria_t criteria) const override;
  67     virtual void onVlcMlEvent( const MLEvent &event ) override;
  68
  69     static QHash<QByteArray, vlc_ml_sorting_criteria_t> M_names_to_criteria;
  70
  71     struct Loader : public BaseLoader
  72     {
  73         Loader(const MLAlbumTrackModel &model) : BaseLoader(model) {}
  74         size_t count() const override;
  75         std::vector<std::unique_ptr<MLAlbumTrack>> load(size_t index, size_t count) const override;
  76     };
  77 };
  78 #endif // MLTRACKMODEL_HPP