musicbackgroundmanager.h

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#ifndef MUSICBACKGROUNDMANAGER_H
#define MUSICBACKGROUNDMANAGER_H

/***************************************************************************
 * This file is part of the TTK Music Player project
 * Copyright (C) 2015 - 2025 Greedysky Studio

 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.

 * This program 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 General Public License for more details.

 * You should have received a copy of the GNU General Public License along
 * with this program; If not, see <http://www.gnu.org/licenses/>.
 ***************************************************************************/

#include "musicobject.h"
#include "ttksingleton.h"

class TTK_MODULE_EXPORT MusicBackgroundManager : public QObject
{
    Q_OBJECT
    TTK_DECLARE_MODULE(MusicBackgroundManager)
    TTK_DECLARE_SINGLETON_CLASS(MusicBackgroundManager)
public:
    void setArtistName(const QString &name);
    QString artistName() const noexcept;

    inline int currentIndex() const noexcept { return m_currentIndex; }
    inline void setCurrentIndex(int index) noexcept { m_currentIndex = index; }
    inline int count() const noexcept { return m_images.count(); }
    inline bool isEmpty() const noexcept { return m_images.isEmpty(); }

    void imageNext() noexcept;
    void imagePrevious() noexcept;

    QString artistImagePath() noexcept;
    QString artistImageDefaultPath() const noexcept;

    void updateArtistImageList();
    QStringList artistImageList() const noexcept;
    void setArtistImageList(const QStringList &list) noexcept;
    void setSelectArtistIndex(int index) noexcept;

    void addObserver(QObject *object);
    void removeObserver(QObject *object);

    void setBackgroundUrl(const QString &path) noexcept;
    QString backgroundUrl() const noexcept;

Q_SIGNALS:
    void artistChanged();
    void backgroundChanged();
    void selectIndexChanged();

private:
    MusicBackgroundManager() noexcept;

    int m_currentIndex;
    QStringList m_images;
    QObjectList m_observer;
    QString m_currentArtistName, m_background;

};

#define G_BACKGROUND_PTR makeMusicBackgroundManager()
TTK_MODULE_EXPORT MusicBackgroundManager* makeMusicBackgroundManager();

#endif // MUSICBACKGROUNDMANAGER_H