QtWidgets: Use Q_NULLPTR instead of 0 in all public headers

This is in preparation of adding -Wzero-as-null-pointer-constant (or similar)
to the headers check.

Task-number: QTBUG-45291
Change-Id: Ie67d235151ca8d4ef5e721c9cf4a6fd32bd167a0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/widgets/graphicsview/qgraphicsscene.h b/src/widgets/graphicsview/qgraphicsscene.h
index 6f2389d83e..c93db20716 100644
--- a/src/widgets/graphicsview/qgraphicsscene.h
+++ b/src/widgets/graphicsview/qgraphicsscene.h
@@ -115,9 +115,9 @@ public:
     };
     Q_DECLARE_FLAGS(SceneLayers, SceneLayer)
 
-    QGraphicsScene(QObject *parent = 0);
-    QGraphicsScene(const QRectF &sceneRect, QObject *parent = 0);
-    QGraphicsScene(qreal x, qreal y, qreal width, qreal height, QObject *parent = 0);
+    QGraphicsScene(QObject *parent = Q_NULLPTR);
+    QGraphicsScene(const QRectF &sceneRect, QObject *parent = Q_NULLPTR);
+    QGraphicsScene(qreal x, qreal y, qreal width, qreal height, QObject *parent = Q_NULLPTR);
     virtual ~QGraphicsScene();
 
     QRectF sceneRect() const;
@@ -279,7 +279,7 @@ protected:
     virtual void drawItems(QPainter *painter, int numItems,
                            QGraphicsItem *items[],
                            const QStyleOptionGraphicsItem options[],
-                           QWidget *widget = 0);
+                           QWidget *widget = Q_NULLPTR);
 
 protected Q_SLOTS:
     // ### Qt 6: make unconditional