1 files changed, 8 insertions, 6 deletions
diff --git a/examples/corelib/threads/mandelbrot/mandelbrotwidget.h b/examples/corelib/threads/mandelbrot/mandelbrotwidget.h
index 23c3a2bf40..0d0fce56b3 100644
--- a/examples/corelib/threads/mandelbrot/mandelbrotwidget.h
+++ b/examples/corelib/threads/mandelbrot/mandelbrotwidget.h
@@ -4,16 +4,20 @@
 #ifndef MANDELBROTWIDGET_H
 #define MANDELBROTWIDGET_H
 
-#include <QGestureEvent>
+#include "renderthread.h"
+
+#include <QCoreApplication>
 #include <QPixmap>
 #include <QWidget>
-#include "renderthread.h"
 
+QT_BEGIN_NAMESPACE
+class QGestureEvent;
+QT_END_NAMESPACE
 
 //! [0]
 class MandelbrotWidget : public QWidget
 {
-    Q_OBJECT
+    Q_DECLARE_TR_FUNCTIONS(MandelbrotWidget)
 
 public:
     MandelbrotWidget(QWidget *parent = nullptr);
@@ -33,11 +37,9 @@ protected:
     bool event(QEvent *event) override;
 #endif
 
-private slots:
+private:
     void updatePixmap(const QImage &image, double scaleFactor);
     void zoom(double zoomFactor);
-
-private:
     void scroll(int deltaX, int deltaY);
 #ifndef QT_NO_GESTURES
     bool gestureEvent(QGestureEvent *event);