Backend.h

// Author: Kang Lin <kl222@126.com>
 
#pragma once
 
#include <QObject>
#include "Operate.h"
 
class PLUGIN_EXPORT CBackend : public QObject
{
    Q_OBJECT
public:
    explicit CBackend(COperate *pOperate = nullptr, bool bStopSignal = true);
    virtual ~CBackend();
 
public:
    virtual int Start();
    virtual int Stop();
    virtual int WakeUp();
 
protected:
    enum class OnInitReturnValue {
        Fail = -1,
        Success = 0,
        UseOnProcess = Success,
        NotUseOnProcess = 1,
    };
    [[nodiscard]] virtual OnInitReturnValue OnInit() = 0;
    virtual int OnClean() = 0;
    [[nodiscard]] virtual int OnProcess();
    
protected Q_SLOTS:
    virtual void slotTimeOut();
    
Q_SIGNALS:
    void sigRunning();
    void sigStop();
    void sigFinished();
    void sigError(const int nError, const QString &szError = QString());
    void sigInformation(const QString& szInfo);
    void sigShowMessageBox(const QString& szTitle, const QString& szMessage,
                           const QMessageBox::Icon& icon = QMessageBox::Information);
 
    void sigBlockShowMessageBox(const QString& szTitle,
                                const QString& szMessage,
                                QMessageBox::StandardButtons buttons,
                                QMessageBox::StandardButton& nRet,
                                bool &checkBox,
                                QString checkBoxContext = QString());
    void sigBlockInputDialog(const QString& szTitle,
                             const QString& szLable,
                             const QString& szMessage,
                             QString& szText
                             );
    void sigBlockShowWidget(const QString& className, int &nRet, void* pContext);
 
private:
    int SetConnect(COperate* pOperate);
 
    bool m_bStopSignal;
};