code_app/modules/saneui/dialog_device_scan.hpp

#ifndef DIALOG_DEVICE_SCAN_H
#define DIALOG_DEVICE_SCAN_H

#include "base/HGDef.h"
#include "base/HGThread.h"
#include "sane/sane_ex.h"
#include "HGSaneUI.h"
#include <QDialog>

namespace Ui {
class Dialog_Device_Scan;
}

class Dialog_Device_Scan : public QDialog
{
    Q_OBJECT

public:
    Dialog_Device_Scan(SANEAPI* saneApi, SANE_Handle dev, const char *devName,
                       show_scan_ui_image_callback callback, void *callbackParam, QWidget *parent = nullptr);
    ~Dialog_Device_Scan();

signals:
    void eventFunc(std::string errInfo);
    void newImage(SANE_Parameters format, SANE_Byte *data);

private slots:
    void on_eventFunc(std::string errInfo);
    void on_newImage(SANE_Parameters format, SANE_Byte *data);
    void on_pushButton_Cancel_clicked();
    void on_pushButton_Complete_clicked();
    void on_pushButton_Continue_clicked();

protected:
    virtual void closeEvent(QCloseEvent *e) override;

private:
    static void HGAPI ThreadFunc(HGThread thread, HGPointer param);

private:
    Ui::Dialog_Device_Scan *ui;
    SANEAPI m_saneAPI;
    SANE_Handle m_saneDev;
    show_scan_ui_image_callback m_callback;
    void *m_callbackParam;
    HGByte* m_buffer;
    HGInt m_bufferSize;
    volatile HGBool m_stopThread;
    HGThread m_thread;
};

#endif // DIALOG_DEVICE_SCAN_H