Displaying status messages from the core. Using non-smart pointer for GenericCore to connect to its signal.

mainwindow.cpp

@@ -8,7 +8,7 @@ MainWindow::MainWindow(QWidget* parent)
     , ui(new Ui::MainWindow) {
   ui->setupUi(this);
 
-  m_core = std::make_shared<GenericCore>();
+  m_core = new GenericCore();
 
   /// application icon
   const QString iconString = "://feature.png";
@@ -21,11 +21,21 @@ MainWindow::MainWindow(QWidget* parent)
 #else
   setWindowIcon(QIcon(iconString));
 #endif
+  connect(m_core, &GenericCore::displayStatusMessage, this, &MainWindow::displayStatusMessage);
+  connect(this, &MainWindow::displayStatusMessage, this, &MainWindow::showStatusMessage);
 }
 
-MainWindow::~MainWindow() { delete ui; }
+MainWindow::~MainWindow() {
+  delete ui;
+  delete m_core;
+}
 
 void MainWindow::on_pushButton_clicked() {
   const QString prefix("Backend provided by: ");
   ui->label->setText(prefix + m_core->toString());
 }
+
+void MainWindow::showStatusMessage(const QString text) {
+  qInfo() << text;
+  ui->statusbar->showMessage(text);
+}

mainwindow.h

@@ -19,12 +19,15 @@ class MainWindow : public QMainWindow {
   MainWindow(QWidget* parent = nullptr);
   ~MainWindow();
 
+ signals:
+  void displayStatusMessage(QString message);
  private slots:
   void on_pushButton_clicked();
 
+  void showStatusMessage(const QString text);
  private:
   Ui::MainWindow* ui;
 
-  std::shared_ptr<GenericCore> m_core;
+  GenericCore* m_core;
 };
 #endif  // MAINWINDOW_H