Add a refresh button

mainwindow.cpp

@@ -237,7 +237,9 @@ void MainWindow::scanDevices()
             }
         }
     }
-    horizontalLayout->addStretch();
+
+    buttonStretch = new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum);
+    horizontalLayout->addSpacerItem(buttonStretch);
 
     if (globalIsNvme) {
         populateWindow(globalObj, globalHealth, globalNvmeSmartOrdered);
@@ -710,3 +712,16 @@ void MainWindow::on_actionGitHub_triggered()
     QDesktopServices::openUrl(QUrl("https://github.com/edisionnano/KDiskInfo"));
 }
 
+
+void MainWindow::on_actionRescan_Refresh_triggered()
+{
+    QList<QAbstractButton*> buttons = buttonGroup->buttons();
+    for (QAbstractButton* button : buttons) {
+        buttonGroup->removeButton(button);
+        delete button;
+    }
+    horizontalLayout->removeItem(buttonStretch);
+    delete buttonStretch;
+    scanDevices();
+}
+

mainwindow.h

@@ -41,6 +41,8 @@ private slots:
 
     void on_actionGitHub_triggered();
 
+    void on_actionRescan_Refresh_triggered();
+
 private:
     Ui::MainWindow *ui;
     QButtonGroup *buttonGroup;
@@ -53,6 +55,7 @@ private:
     QColor goodColor, cautionColor, badColor, naColor;
 
     QJsonObject deviceJson;
+    QSpacerItem *buttonStretch;
 
     void onNextButtonClicked();
     void onPrevButtonClicked();