playlistmodel.h Example File

multimediawidgets/player/playlistmodel.h
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 #ifndef PLAYLISTMODEL_H
 #define PLAYLISTMODEL_H

 #include <QAbstractItemModel>
 #include <QScopedPointer>

 class QMediaPlaylist;

 class PlaylistModel : public QAbstractItemModel
 {
     Q_OBJECT

 public:
     enum Column
     {
         Title = 0,
         ColumnCount
     };

     explicit PlaylistModel(QObject *parent = nullptr);
     ~PlaylistModel();

     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
     int columnCount(const QModelIndex &parent = QModelIndex()) const override;

     QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
     QModelIndex parent(const QModelIndex &child) const override;

     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;

     QMediaPlaylist *playlist() const;
     void setPlaylist(QMediaPlaylist *playlist);

     bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::DisplayRole) override;

 private slots:
     void beginInsertItems(int start, int end);
     void endInsertItems();
     void beginRemoveItems(int start, int end);
     void endRemoveItems();
     void changeItems(int start, int end);

 private:
     QScopedPointer<QMediaPlaylist> m_playlist;
     QMap<QModelIndex, QVariant> m_data;
 };

 #endif // PLAYLISTMODEL_H