feature: added possibility to change hardware interface from GUI

windowssettings.cpp

@@ -4,6 +4,7 @@
 #include "ui_windowssettings.h"
 #include <QStringListModel>
 #include <boost/lexical_cast.hpp>
+#include <filesystem>
 #include <iostream>
 #include <qcolordialog.h>
 #include <qmessagebox.h>
@@ -12,6 +13,8 @@
 #include <time.h>
 #include <vector>
 
+namespace fs = std::filesystem;
+
 using std::cout;
 using std::endl;
 using std::string;
@@ -21,6 +24,8 @@ WindowsSettings::WindowsSettings(DataBase * db, QWidget * parent)
     : QMainWindow(parent), ui(new Ui::WindowsSettings) {
     ui->setupUi(this);
 
+    QObject::connect(ui->cBInterface, SIGNAL(activated(int)), this,
+                     SLOT(changeInterface()));
     QObject::connect(ui->pBSpeichernStrecke, SIGNAL(clicked()), this,
                      SLOT(StreckeSpeichernSlot()));
     QObject::connect(ui->pBAbbrechenStrecke, SIGNAL(clicked()), this,
@@ -199,7 +204,27 @@ WindowsSettings::WindowsSettings(DataBase * db, QWidget * parent)
 
     // fill listView of cars
     this->repaintCars();
-    // this->ui->wEditCarColor->grab()
+
+    // setup Hardware interface
+    QStringList cbInterfaceList = QStringList();
+    cbInterfaceList.append("/dev/ttyAMC0");
+
+    std::string path = "/dev/pts/";
+    for (const auto & entry : fs::directory_iterator(path)) {
+        std::string pathToAppend = entry.path();
+        cbInterfaceList.append(QString::fromStdString(pathToAppend));
+    }
+    this->ui->cBInterface->addItems(cbInterfaceList);
+
+    // preset combobox from database
+    QString dataFromDatabase =
+        this->db->getData("select interface from interface where id like 1", 1)
+            .at(0)
+            .at(0);
+    int id = this->ui->cBInterface->findText(dataFromDatabase);
+    if (id > -1) {
+        this->ui->cBInterface->setCurrentIndex(id);
+    }
 }
 
 void WindowsSettings::saveEditCar() {
@@ -495,6 +520,15 @@ string WindowsSettings::currentDateTime() {
     return buf;
 }
 
+void WindowsSettings::changeInterface() {
+    std::string curInterface =
+        this->ui->cBInterface->currentText().toStdString();
+    std::string statement = "update interface set interface = '" +
+                            curInterface + "' where id like 1";
+    cout << statement << endl;
+    this->db->setData(statement);
+}
+
 void WindowsSettings::createRaceListAndClose() {
     vector<int> selectedCarIds;
     foreach (const QModelIndex & index,