Widgets/GraphicsView examples: cleanup

Cleanup GraphicsView examples with the help of clang-tidy
 - modernize-use-nullptr
 - modernize-use-default-member-init
 - modernize-use-override.IgnoreDestructors
 - Some QList -> QVector changes
 - use nullptr
 - use normalized includes, remove unused includes
 - fix style

Change-Id: I79347e55bfde52f6ae7749cc7093fbd442044020
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 3 insertions, 3 deletions

diff --git a/examples/widgets/graphicsview/flowlayout/main.cpp b/examples/widgets/graphicsview/flowlayout/main.cpp
index 74c03b9bce..dbfed51bb3 100644
--- a/examples/widgets/graphicsview/flowlayout/main.cpp
+++ b/examples/widgets/graphicsview/flowlayout/main.cpp
@@ -59,12 +59,12 @@ int main(int argc, char *argv[])
     QApplication app(argc, argv);
 
     QGraphicsScene scene;
-    QGraphicsView *view = new QGraphicsView(&scene);
+    QGraphicsView view(&scene);
     Window *w = new Window;
     scene.addItem(w);
 
-    view->resize(400, 300);
-    view->show();
+    view.resize(400, 300);
+    view.show();
 
     return app.exec();
 }