implemented full screen toggle

app/window/mainwindow/mainmenu.cpp

@@ -29,7 +29,7 @@
 #include "undo/undostack.h"
 #include "widget/menu/menushared.h"
 
-MainMenu::MainMenu(QWidget *parent) :
+MainMenu::MainMenu(QMainWindow *parent) :
   QMenuBar(parent)
 {
   //
@@ -84,7 +84,7 @@ MainMenu::MainMenu(QWidget *parent) :
   //
   // VIEW MENU
   //
-  view_menu_ = new Menu(this);
+  view_menu_ = new Menu(this, this, SLOT(ViewMenuAboutToShow()));
   view_zoom_in_item_ = view_menu_->AddItem("zoomin", this, SLOT(ZoomInTriggered()), "=");
   view_zoom_out_item_ = view_menu_->AddItem("zoomout", this, SLOT(ZoomOutTriggered()), "-");
   view_increase_track_height_item_ = view_menu_->AddItem("vzoomin", nullptr, nullptr, "Ctrl+=");
@@ -151,7 +151,7 @@ MainMenu::MainMenu(QWidget *parent) :
 
   view_menu_->addSeparator();
 
-  view_full_screen_item_ = view_menu_->AddItem("fullscreen", nullptr, nullptr, "F11");
+  view_full_screen_item_ = view_menu_->AddItem("fullscreen", parent, SLOT(SetFullscreen(bool)), "F11");
   view_full_screen_item_->setCheckable(true);
 
   view_full_screen_viewer_item_ = view_menu_->AddItem("fullscreenviewer", nullptr, nullptr);
@@ -324,6 +324,12 @@ void MainMenu::ToolItemTriggered()
   olive::core.SetTool(tool);
 }
 
+void MainMenu::ViewMenuAboutToShow()
+{
+  // Parent is QMainWindow
+  view_full_screen_item_->setChecked(parentWidget()->isFullScreen());
+}
+
 void MainMenu::ToolsMenuAboutToShow()
 {
   // Ensure checked Tool is correct

app/window/mainwindow/mainmenu.h

@@ -21,6 +21,7 @@
 #ifndef MAINMENU_H
 #define MAINMENU_H
 
+#include <QMainWindow>
 #include <QMenuBar>
 
 #include "widget/menu/menu.h"
@@ -34,7 +35,7 @@ class MainMenu : public QMenuBar
 {
   Q_OBJECT
 public:
-  MainMenu(QWidget* parent);
+  MainMenu(QMainWindow* parent);
 
 protected:
   /**
@@ -55,6 +56,11 @@ private slots:
    */
   void ToolItemTriggered();
 
+  /**
+   * @brief Slot triggered just before the View menu shows
+   */
+  void ViewMenuAboutToShow();
+
   /**
    * @brief Slot triggered just before the Tools menu shows
    */

app/window/mainwindow/mainwindow.cpp

@@ -55,6 +55,15 @@ olive::MainWindow::MainWindow(QWidget *parent) :
   setMenuBar(main_menu);
 }
 
+void olive::MainWindow::SetFullscreen(bool fullscreen)
+{
+  if (fullscreen) {
+    setWindowState(windowState() | Qt::WindowFullScreen);
+  } else {
+    setWindowState(windowState() & ~Qt::WindowFullScreen);
+  }
+}
+
 void olive::MainWindow::ProjectOpen(Project* p)
 {
   // FIXME Use settings data to create panels and restore state if they exist

app/window/mainwindow/mainwindow.h

@@ -37,12 +37,13 @@ public:
 
 public slots:
   void ProjectOpen(Project *p);
+  void SetFullscreen(bool fullscreen);
 
 protected:
   virtual void closeEvent(QCloseEvent* e) override;
 
 private:
-
+  Qt::WindowStates old_window_state_;
 
 };