shuffle.h

Go to the documentation of this file.

/*
 * Sailfin: a Jellyfin client written using Qt
 * Copyright (C) 2021 Chris Josten and the Sailfin Contributors.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef JELLYFIN_MODEL_SHUFFLE_H
#define JELLYFIN_MODEL_SHUFFLE_H
 
#include "playlist.h"
#include "../model/item.h"
 
 
namespace Jellyfin {
namespace Model {
 
class Shuffle {
public:
    Shuffle(const Playlist *parent) : m_playlist(parent) {}
 
    virtual bool canShuffleInAdvance() { return true; }
 
    virtual void shuffleInAdvance() {}
 
    virtual void next() {};
 
    virtual void previous() {};
 
    virtual void setIndex(int i) {};
 
    virtual int currentItem() const { return -1; }
 
    virtual int itemAt(int index) const { return -1; }
 
    virtual int nextItem() const { return -1; }
 
    virtual bool hasPrevious() const { return false; }
    virtual bool hasNext() const { return false; }
 
    void setRepeatAll(bool repeatAll) { m_repeatAll = repeatAll; }
protected:
    const Playlist *m_playlist;
    bool m_repeatAll = false;
    static int random(int max, int min = 0);
};
 
class NoShuffle : public Shuffle {
public:
    NoShuffle(const Playlist *parent);
 
    virtual int currentItem() const override;
    virtual int nextItem() const override;
    virtual int itemAt(int index) const override;
 
    virtual void previous() override;
    virtual void next() override;
    virtual void setIndex(int i) override;
    virtual bool hasPrevious() const override;
    virtual bool hasNext() const override;
protected:
    int nextIndex() const;
    int previousIndex() const;
    int m_index = 0;
 
};
 
class ListShuffleBase : public NoShuffle {
public:
    ListShuffleBase(const Playlist *parent);
    virtual int currentItem() const override;
    virtual int nextItem() const override;
    virtual int itemAt(int index) const override;
protected:
    QVector<int> m_map;
};
 
class SimpleListShuffle : public ListShuffleBase {
public:
    SimpleListShuffle(const Playlist *parent);
    virtual void shuffleInAdvance() override;
};
 
class RandomShuffle : public Shuffle {
public:
    RandomShuffle(const Playlist *parent);
    bool canShuffleInAdvance() override;
    virtual int currentItem() const override;
    virtual int nextItem() const override;
    virtual void previous() override;
    virtual void next() override;
    virtual bool hasPrevious() const override;
    virtual bool hasNext() const override;
protected:
    int m_previous, m_current, m_next = -1;
};
 
class VariedListShuffle {
 
};
 
} // NS Model
} // NS Jellyfin
 
#endif // SHUFFLE_H