Implement actions

mainwindow.h

@@ -34,9 +34,17 @@ public:
         explicit MainWindow(QWidget *parent = nullptr);
         ~MainWindow();
 
+private slots:
+        void onActionOpenTriggered();
+        void onActionSaveTriggered();
+        void onActionSaveAsTriggered();
+
 private:
         void enumerateDevices();
-    void generateExample();
+        void generateExample();
+        void updateTitle();
+        QString currentFilePath;
+        bool isFileModified;
 };
 
 #endif // MAINWINDOW_H