- Qt 5.5
- Qt Multimedia Widgets
- Media Player Example
- playlistmodel.h Example File
- Qt 5.5.1 Reference Documentation

# playlistmodel.h Example File

player/playlistmodel.h

    /****************************************************************************
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    ** This file is part of the examples of the Qt Toolkit.
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    #ifndef PLAYLISTMODEL_H
    #define PLAYLISTMODEL_H

    #include <QAbstractItemModel>

    class QMediaPlaylist;

    class PlaylistModel : public QAbstractItemModel
    {
        Q_OBJECT

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

        PlaylistModel(QObject *parent = 0);

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

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

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

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

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

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

    #endif // PLAYLISTMODEL_H