qrscanner.h

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#pragma once

#include <QMediaCaptureSession>
#include <QVideoWidget>

class CustomVideoWidget : public QVideoWidget
{
    Q_OBJECT
public:
    explicit CustomVideoWidget(QWidget *parent = nullptr)
        : QVideoWidget(parent)
    {}
    ~CustomVideoWidget() override {}

    void closeEvent(QCloseEvent *) override { emit closed(); }

signals:
    void closed();
};

class QrScanner : public QObject
{
    Q_OBJECT
public:
    ~QrScanner();
    void scanQrCode();

private:
    QSharedPointer<QMediaCaptureSession> m_captureSession;

    void openCamera();

signals:
    void qrCodeScanned(const QString &qrCode);
};