fix(cpn): update main window menus and toolbars on fixing invalid models (#5890)

companion/src/mainwindow.cpp

@@ -758,6 +758,7 @@ MdiChild * MainWindow::createMdiChild()
   connect(child, &MdiChild::modified, this, &MainWindow::onSubwindowModified);
   connect(child, &MdiChild::newStatusMessage, statusBar(), &QStatusBar::showMessage);
   connect(child, &MdiChild::destroyed, win, &QMdiSubWindow::close);
+  connect(child, &MdiChild::navigationUpdated, this, &MainWindow::updateMenus);
   connect(win, &QMdiSubWindow::destroyed, this, &MainWindow::updateWindowActions);
 
   updateWindowActions();

companion/src/mdichild.cpp

@@ -374,6 +374,8 @@ void MdiChild::updateNavigation()
   action[ACT_MDL_PRT]->setEnabled(singleModelSelected);
   action[ACT_MDL_SIM]->setEnabled(singleModelSelected && !invalidModels());
   action[ACT_MDL_ERR]->setEnabled(singleModelSelected && radioData.models[getCurrentModel()].modelErrors);
+
+  emit navigationUpdated();
 }
 
 void MdiChild::retranslateUi()

companion/src/mdichild.h

@@ -106,6 +106,7 @@ class MdiChild : public QWidget
   signals:
     void modified();
     void newStatusMessage(const QString & msg, const int duration);
+    void navigationUpdated();
 
   protected:
     virtual void changeEvent(QEvent * event);