The Fullscreen/Normal menu items in the main window are now checkable.

src/ui/MainWindow.cc

@@ -347,6 +347,23 @@ void MainWindow::init()
 
     }
 
+    // Make sure the proper fullscreen/normal menu item is checked properly.
+    if (isFullScreen())
+    {
+        ui.actionFullscreen->setChecked(true);
+        ui.actionNormal->setChecked(false);
+    }
+    else
+    {
+        ui.actionFullscreen->setChecked(false);
+        ui.actionNormal->setChecked(true);
+    }
+
+    // And that they will stay checked properly after user input
+    QObject::connect(ui.actionFullscreen, SIGNAL(triggered()), this, SLOT(fullScreenActionItemCallback()));
+    QObject::connect(ui.actionNormal, SIGNAL(triggered()), this,SLOT(normalActionItemCallback()));
+
+
     // Set OS dependent keyboard shortcuts for the main window, non OS dependent shortcuts are set in MainWindow.ui
 #ifdef Q_OS_MACX
     ui.actionFlightView->setShortcut(QApplication::translate("MainWindow", "Meta+1", 0, QApplication::UnicodeUTF8));
@@ -758,6 +775,16 @@ void MainWindow::showDockWidget(const QString& name, bool show)
         loadDockWidget(name);
 }
 
+void MainWindow::fullScreenActionItemCallback()
+{
+    ui.actionNormal->setChecked(false);
+}
+
+void MainWindow::normalActionItemCallback()
+{
+    ui.actionFullscreen->setChecked(false);
+}
+
 void MainWindow::loadDockWidget(const QString& name)
 {
     if(menuActionHelper->containsDockWidget(currentView, name))

src/ui/MainWindow.h

@@ -297,6 +297,18 @@ public slots:
 
 protected slots:
     void showDockWidget(const QString &name, bool show);
+    /**
+     * @brief Unchecks the normalActionItem.
+     * Used as a triggered() callback by the fullScreenAction to make sure only one of it or the
+     * normalAction are checked at a time, as they're mutually exclusive.
+     */
+    void fullScreenActionItemCallback();
+    /**
+     * @brief Unchecks the fullScreenActionItem.
+     * Used as a triggered() callback by the normalAction to make sure only one of it or the
+     * fullScreenAction are checked at a time, as they're mutually exclusive.
+     */
+    void normalActionItemCallback();
 
 signals:
     void styleChanged(MainWindow::QGC_MAINWINDOW_STYLE newTheme);

src/ui/MainWindow.ui

@@ -379,11 +379,23 @@
    </property>
   </action>
   <action name="actionFullscreen">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>false</bool>
+   </property>
    <property name="text">
     <string>Fullscreen</string>
    </property>
   </action>
   <action name="actionNormal">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>false</bool>
+   </property>
    <property name="text">
     <string>Normal</string>
    </property>