message: [contour] Fixes building on older Qt5 versions.
diff: @@ -74,8 +74,13 @@ namespace
  MousePixelPosition makeMousePixelPosition(QWheelEvent* _event) noexcept
  {
  // TODO: apply margin once supported
  +#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
  return MousePixelPosition { MousePixelPosition::X { static_cast<int>(_event->position().x()) },
  MousePixelPosition::Y { static_cast<int>(_event->position().y()) } };
  +#else
  + return MousePixelPosition { MousePixelPosition::X { static_cast<int>(_event->x()) },
  + MousePixelPosition::Y { static_cast<int>(_event->y()) } };
  +#endif
  }
  int mouseWheelDelta(QWheelEvent* _event) noexcept
  