gif_player.h

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#ifndef INLINE_GIF_PLAYER_H
#define INLINE_GIF_PLAYER_H
 
#include <QFrame>
 
class GifDecoder;
class QLabel;
class TranslationManager;

class GifPlayer final : public QFrame {
    Q_OBJECT
 
public:
    explicit GifPlayer(const QByteArray &gif_data, QWidget *parent = nullptr);

    ~GifPlayer() override {
        ReleaseResources();
    }

    void ReleaseResources();

    [[nodiscard]] QSize sizeHint() const override;

    void StartPlayback();

    void StopPlayback();
 
protected:
    void enterEvent(QEvent *event) override;

    void leaveEvent(QEvent *event) override;
 
private slots:
    void DisplayThumbnail(const QImage &frame);

    void UpdateFrame(const QImage &frame) const;

    void HandleError(const QString &message);

    void HandleGifInfo(int width, int height, double duration, double frame_rate);
 
signals:
    void gifLoaded();
 
private:
    QLabel *gif_label_;
    std::shared_ptr<GifDecoder> decoder_;

    QByteArray gif_data_;

    int gif_width_ = 0;
    int gif_height_ = 0;
    double gif_duration_ = 0;
    double frame_rate_ = 0;
    double current_position_ = 0;
    bool is_playing_ = false;
    QPixmap thumbnail_pixmap_;
    TranslationManager *translator_ = nullptr;
};
 
#endif //INLINE_GIF_PLAYER_H