#ifndef IMAGERINGLIST_H
#define IMAGERINGLIST_H

#include <QObject>
#include <QFileSystemWatcher>
#include <QList>
#include <QPixmap>
#include <memory>

class Image : public QObject
{
    Q_OBJECT
    bool m_loading;
    bool m_released;
    QPixmap m_pixmap;
    QString m_name;
public:
    explicit Image(const QString name);
    void load();
    void release();
    QString name() const;
    QPixmap pixmap() const;
signals:
    void pixmapLoaded(Image *ptr);
protected slots:
    void imageLoaded(QImage img);
};

class ImageRingList : public QObject
{
    Q_OBJECT
    typedef std::shared_ptr<Image> ImagePtr;
    int m_width;
    QList<ImagePtr> m_images;
    QList<ImagePtr>::iterator m_firstImage;
    QList<ImagePtr>::iterator m_currImage;
    QList<ImagePtr>::iterator m_lastImage;
public:
    explicit ImageRingList(QObject *parent = 0);
    bool setDir(const QString path);
    void setFiles(const QStringList files);
    void increment();
    void decrement();
protected:
    QList<ImagePtr>::iterator increment(QList<ImagePtr>::iterator iter);
    QList<ImagePtr>::iterator decrement(QList<ImagePtr>::iterator iter);
signals:
    void pixmapLoaded(QPixmap pix);
protected slots:
    void imageLoaded(Image *image);
};

#endif // IMAGERINGLIST_H