#pragma once

#include <QGraphicsView>
#include <QImage>
#include <QPixmap>

class QGraphicsPixmapItem;
class QGraphicsScene;
class QWheelEvent;
class QMouseEvent;

class ImageView final : public QGraphicsView
{
    Q_OBJECT

public:
    explicit ImageView(QWidget *parent = nullptr);

    void setImage(const QImage &image);
    void clearImage();
    void fitImageToView();
    bool hasImage() const;

protected:
    void wheelEvent(QWheelEvent *event) override;
    void mouseDoubleClickEvent(QMouseEvent *event) override;

private:
    void resetSceneRect();

    QGraphicsScene *scene_ = nullptr;
    QGraphicsPixmapItem *pixmapItem_ = nullptr;
    QPixmap pixmap_;
    double zoomFactor_ = 1.0;
};