qt5base-lts/tests/manual/gestures/graphicsview/imageitem.h

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#ifndef IMAGEITEM_H
#define IMAGEITEM_H

#include <QGraphicsItem>
#include <QImage>
#include <QPixmap>
#include <QTransform>

class ImageItem : public QGraphicsObject
{
    Q_OBJECT
public:
    ImageItem(const QImage &image);
    void setImage(const QImage &image);
    QImage image() const;
    QRectF boundingRect() const;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);

private:
    QImage image_;
    QPixmap pixmap_;
    QTransform transform;
};

class GestureImageItem : public ImageItem
{
    Q_OBJECT

public:
    GestureImageItem(const QImage &image);

protected:
    bool event(QEvent *event);
};

#endif // IMAGEITEM_H