examples: Use lambdas instead of functor classes

Change-Id: Iee2cc22a9239ab5a351cb5ecb2c8ce10ed019b2c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

2 files changed, 4 insertions, 25 deletions

diff --git a/examples/widgets/mainwindows/mainwindow/mainwindow.cpp b/examples/widgets/mainwindows/mainwindow/mainwindow.cpp
index a21a64bdd4..10e3dd045a 100644
--- a/examples/widgets/mainwindows/mainwindow/mainwindow.cpp
+++ b/examples/widgets/mainwindows/mainwindow/mainwindow.cpp
@@ -282,23 +282,10 @@ void MainWindow::loadLayout()
     }
 }
 
-class DockWidgetAreaCornerFunctor {
-public:
-    explicit DockWidgetAreaCornerFunctor(QMainWindow *mw, Qt::Corner c, Qt::DockWidgetArea a)
-        : m_mainWindow(mw), m_area(a), m_corner(c) {}
-
-    void operator()() const { m_mainWindow->setCorner(m_corner, m_area); }
-
-private:
-    QMainWindow *m_mainWindow;
-    Qt::DockWidgetArea m_area;
-    Qt::Corner m_corner;
-};
-
 static QAction *addCornerAction(const QString &text, QMainWindow *mw, QMenu *menu, QActionGroup *group,
                                 Qt::Corner c, Qt::DockWidgetArea a)
 {
-    QAction *result = menu->addAction(text, mw, DockWidgetAreaCornerFunctor(mw, c, a));
+    QAction *result = menu->addAction(text, mw, [=]() { mw->setCorner(c, a); });
     result->setCheckable(true);
     group->addAction(result);
     return result;
diff --git a/examples/widgets/mainwindows/mdi/mainwindow.cpp b/examples/widgets/mainwindows/mdi/mainwindow.cpp
index 76b1c308cb..188de1893e 100644
--- a/examples/widgets/mainwindows/mdi/mainwindow.cpp
+++ b/examples/widgets/mainwindows/mdi/mainwindow.cpp
@@ -264,16 +264,6 @@ void MainWindow::updateMenus()
 #endif
 }
 
-class ActiveMdiSubWindowFunctor {
-public:
-    explicit ActiveMdiSubWindowFunctor(QMdiArea *mdiArea, QMdiSubWindow *activeWindow) : m_mdiArea(mdiArea), m_activeWindow(activeWindow) {}
-    void operator()() const { m_mdiArea->setActiveSubWindow(m_activeWindow); }
-
-private:
-    QMdiArea *m_mdiArea;
-    QMdiSubWindow *m_activeWindow;
-};
-
 void MainWindow::updateWindowMenu()
 {
     windowMenu->clear();
@@ -302,7 +292,9 @@ void MainWindow::updateWindowMenu()
             text = tr("%1 %2").arg(i + 1)
                               .arg(child->userFriendlyCurrentFile());
         }
-        QAction *action = windowMenu->addAction(text, mdiSubWindow, ActiveMdiSubWindowFunctor(mdiArea, mdiSubWindow));
+        QAction *action = windowMenu->addAction(text, mdiSubWindow, [this, mdiSubWindow]() {
+            mdiArea->setActiveSubWindow(mdiSubWindow);
+        });
         action->setCheckable(true);
         action ->setChecked(child == activeMdiChild());
     }