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, 1 insertions, 2 deletions

diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.h b/examples/widgets/itemviews/stardelegate/stardelegate.h
index ffc65fbedd..1fc31f8ee8 100644
--- a/examples/widgets/itemviews/stardelegate/stardelegate.h
+++ b/examples/widgets/itemviews/stardelegate/stardelegate.h
@@ -57,9 +57,8 @@
 class StarDelegate : public QStyledItemDelegate
 {
     Q_OBJECT
-
 public:
-    StarDelegate(QWidget *parent = 0) : QStyledItemDelegate(parent) {}
+    using QStyledItemDelegate::QStyledItemDelegate;
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
                const QModelIndex &index) const override;