Cleanup StarDelegate example

Cleanup the StarDelegate example:
 - use QStyledItemDelegate instead QItemDelegate
 - use nullptr and other useful c++11 constructs
 - include the correct headers

Change-Id: If2f65fe7cbdcdd4571d10ffa98d36eeab7836bbb
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>

1 files changed, 4 insertions, 4 deletions

diff --git a/examples/widgets/itemviews/stardelegate/starrating.h b/examples/widgets/itemviews/stardelegate/starrating.h
index fa77311914..fc3028db58 100644
--- a/examples/widgets/itemviews/stardelegate/starrating.h
+++ b/examples/widgets/itemviews/stardelegate/starrating.h
@@ -51,15 +51,15 @@
 #ifndef STARRATING_H
 #define STARRATING_H
 
-#include <QMetaType>
-#include <QPointF>
-#include <QVector>
+#include <QPainter>
+#include <QPolygonF>
+#include <QSize>
 
 //! [0]
 class StarRating
 {
 public:
-    enum EditMode { Editable, ReadOnly };
+    enum class EditMode { Editable, ReadOnly };
 
     explicit StarRating(int starCount = 1, int maxStarCount = 5);