define file for update log

UpdatePTUDevCtrl/mainwindow.h

@@ -6,6 +6,7 @@
 #include <QStatusBar>
 #include <QVector>
 #include <QString>
+#include <QProgressBar>
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
@@ -39,6 +40,7 @@ public:
     void setUpdateStep(UpdateDcEvent::UpdateStep updateStep) { m_updateStep = updateStep; }
 
     QString targetDcVersion() {return  m_targetDcVersion; }
+    QProgressBar *progressBar();
 
 public slots:
     void onAppendText(QString, QString suffix = "");
@@ -69,6 +71,7 @@ public slots:
     void onSetDcDownloadProgress(int);
     void onShowSummary(QString);
     void onSummary();
+    void onFileChanged(QString const&);
 #if EMERGENCY_LEAVE_BL==1
     void emergencyLeaveBL();
 #endif
@@ -103,5 +106,6 @@ private:
 
     QVector<QString> m_updateSteps{};
 
+    QFile m_updateLog;
 };
 #endif // MAINWINDOW_H