recalculate the scrollable size on skin changes

src/controls/QskListView.cpp

@@ -276,6 +276,14 @@ void QskListView::mouseReleaseEvent( QMouseEvent* event )
     Inherited::mouseReleaseEvent( event );
 }
 
+void QskListView::changeEvent( QEvent* event )
+{
+    if ( event->type() == QEvent::StyleChange )
+        updateScrollableSize();
+
+    Inherited::changeEvent( event );
+}
+
 #ifndef QT_NO_WHEELEVENT
 
 static qreal qskAlignedToRows( const qreal y0, qreal dy,

src/controls/QskListView.h

@@ -87,6 +87,8 @@ class QSK_EXPORT QskListView : public QskScrollView
     void textOptionsChanged();
 
   protected:
+    void changeEvent( QEvent* ) override;
+
     void keyPressEvent( QKeyEvent* ) override;
     void keyReleaseEvent( QKeyEvent* ) override;