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, 2 insertions, 3 deletions

diff --git a/examples/widgets/itemviews/stardelegate/stareditor.h b/examples/widgets/itemviews/stardelegate/stareditor.h
index 4a4c3a4954..8b1bf2efed 100644
--- a/examples/widgets/itemviews/stardelegate/stareditor.h
+++ b/examples/widgets/itemviews/stardelegate/stareditor.h
@@ -59,9 +59,8 @@
 class StarEditor : public QWidget
 {
     Q_OBJECT
-
 public:
-    StarEditor(QWidget *parent = 0);
+    StarEditor(QWidget *parent = nullptr);
 
     QSize sizeHint() const override;
     void setStarRating(const StarRating &starRating) {
@@ -78,7 +77,7 @@ protected:
     void mouseReleaseEvent(QMouseEvent *event) override;
 
 private:
-    int starAtPosition(int x);
+    int starAtPosition(int x) const;
 
     StarRating myStarRating;
 };