QRect KisFilterMask::needRect(const QRect& rect, PositionToFilthy pos) const
{
Q_UNUSED(pos);
/**
* FIXME: This check of the emptiness should be done
* on the higher/lower level
*/
if(rect.isEmpty()) return rect;
KisSafeFilterConfigurationSP filterConfig = filter();
if (!filterConfig) return rect;
KisNodeSP parent = this->parent();
const int lod = parent && parent->projection() ?
parent->projection()->defaultBounds()->currentLevelOfDetail() : 0;
KisFilterSP filter = KisFilterRegistry::instance()->value(filterConfig->name());
/**
* If we need some additional pixels even outside of a selection
* for accurate layer filtering, we'll get them!
* And no KisMask::needRect will prevent us from doing this! ;)
* That's why simply we do not call KisMask::needRect here :)
*/
return filter->neededRect(rect, filterConfig.data(), lod);
}
