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, 3 insertions, 5 deletions

diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.cpp b/examples/widgets/itemviews/stardelegate/stardelegate.cpp
index da5902a160..41ae5a920f 100644
--- a/examples/widgets/itemviews/stardelegate/stardelegate.cpp
+++ b/examples/widgets/itemviews/stardelegate/stardelegate.cpp
@@ -65,7 +65,7 @@ void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
             painter->fillRect(option.rect, option.palette.highlight());
 
         starRating.paint(painter, option.rect, option.palette,
-                         StarRating::ReadOnly);
+                         StarRating::EditMode::ReadOnly);
     } else {
         QStyledItemDelegate::paint(painter, option, index);
     }
@@ -79,9 +79,8 @@ QSize StarDelegate::sizeHint(const QStyleOptionViewItem &option,
     if (index.data().canConvert<StarRating>()) {
         StarRating starRating = qvariant_cast<StarRating>(index.data());
         return starRating.sizeHint();
-    } else {
-        return QStyledItemDelegate::sizeHint(option, index);
     }
+    return QStyledItemDelegate::sizeHint(option, index);
 }
 //! [1]
 
@@ -96,9 +95,8 @@ QWidget *StarDelegate::createEditor(QWidget *parent,
         connect(editor, &StarEditor::editingFinished,
                 this, &StarDelegate::commitAndCloseEditor);
         return editor;
-    } else {
-        return QStyledItemDelegate::createEditor(parent, option, index);
     }
+    return QStyledItemDelegate::createEditor(parent, option, index);
 }
 //! [2]