Use valid event type in QWidget::enterEvent()

src/gui/properties/piecesbar.cpp

@@ -143,7 +143,11 @@ bool PiecesBar::event(QEvent *e)
     return base::event(e);
 }
 
+#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
+void PiecesBar::enterEvent(QEnterEvent *e)
+#else
 void PiecesBar::enterEvent(QEvent *e)
+#endif
 {
     m_hovered = true;
     base::enterEvent(e);

src/gui/properties/piecesbar.h

@@ -54,15 +54,19 @@ public:
     virtual void clear();
 
     // QObject interface
-    virtual bool event(QEvent*) override;
+    virtual bool event(QEvent *e) override;
 
 protected:
     // QWidget interface
-    void enterEvent(QEvent*) override;
-    void leaveEvent(QEvent*) override;
-    void mouseMoveEvent(QMouseEvent*) override;
-
-    void paintEvent(QPaintEvent*) override;
+#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
+    void enterEvent(QEnterEvent *e) override;
+#else
+    void enterEvent(QEvent *e) override;
+#endif
+    void leaveEvent(QEvent *e) override;
+    void mouseMoveEvent(QMouseEvent *e) override;
+
+    void paintEvent(QPaintEvent *e) override;
     void requestImageUpdate();
 
     QColor backgroundColor() const;