feature: added possibility to change hardware interface from GUI

mainwindow.cpp

@@ -50,6 +50,21 @@ MainWindow::MainWindow(QWidget * parent)
                      SLOT(WindowRennen()));
 
     this->db = std::make_unique<DataBase>();
+    vector<vector<QString>> interface =
+        this->db->getData("select * from interface", 1);
+    if (interface.size() > 0) {
+        std::cout << "interface existiert" << std::endl;
+    }
+    else {
+        std::cout << "interface existiert nicht" << std::endl;
+        // create interface
+        std::string statement =
+            "CREATE TABLE \"Interface\" ( \"id\" INTEGER PRIMARY KEY "
+            "AUTOINCREMENT, \"interface\"	TEXT )";
+        this->db->setData(statement);
+        statement = "insert into interface (interface) values ('/dev/ttyAMC0')";
+        this->db->setData(statement);
+    }
 }
 void MainWindow::closeEvent(QCloseEvent * event) {
     Q_UNUSED(event);