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>

2 files changed, 4 insertions, 4 deletions

diff --git a/src/widgets/statemachine/qkeyeventtransition.h b/src/widgets/statemachine/qkeyeventtransition.h
index 5dd0685d0b..ad159eaa22 100644
--- a/src/widgets/statemachine/qkeyeventtransition.h
+++ b/src/widgets/statemachine/qkeyeventtransition.h
@@ -48,9 +48,9 @@ class Q_WIDGETS_EXPORT QKeyEventTransition : public QEventTransition
     Q_PROPERTY(int key READ key WRITE setKey)
     Q_PROPERTY(Qt::KeyboardModifiers modifierMask READ modifierMask WRITE setModifierMask)
 public:
-    QKeyEventTransition(QState *sourceState = 0);
+    QKeyEventTransition(QState *sourceState = Q_NULLPTR);
     QKeyEventTransition(QObject *object, QEvent::Type type, int key,
-                        QState *sourceState = 0);
+                        QState *sourceState = Q_NULLPTR);
     ~QKeyEventTransition();
 
     int key() const;
diff --git a/src/widgets/statemachine/qmouseeventtransition.h b/src/widgets/statemachine/qmouseeventtransition.h
index d9bac9e1a0..b4db61279d 100644
--- a/src/widgets/statemachine/qmouseeventtransition.h
+++ b/src/widgets/statemachine/qmouseeventtransition.h
@@ -49,9 +49,9 @@ class Q_WIDGETS_EXPORT QMouseEventTransition : public QEventTransition
     Q_PROPERTY(Qt::MouseButton button READ button WRITE setButton)
     Q_PROPERTY(Qt::KeyboardModifiers modifierMask READ modifierMask WRITE setModifierMask)
 public:
-    QMouseEventTransition(QState *sourceState = 0);
+    QMouseEventTransition(QState *sourceState = Q_NULLPTR);
     QMouseEventTransition(QObject *object, QEvent::Type type,
-                          Qt::MouseButton button, QState *sourceState = 0);
+                          Qt::MouseButton button, QState *sourceState = Q_NULLPTR);
     ~QMouseEventTransition();
 
     Qt::MouseButton button() const;