/**
* Build map layers.
*
* @param Map $map The map being built.
* @param MapModel $model The map model.
* @param DefinitionMapper $mapper Definition mapper.
* @param Filter $filter Optional request filter.
*
* @return void
*/
private function buildLayers(Map $map, MapModel $model, DefinitionMapper $mapper, Filter $filter = null)
{
$collection = $model->findActiveLayers();
if ($collection) {
foreach ($collection as $layer) {
if (!$layer->active) {
continue;
}
$layer = $mapper->handle($layer, $filter, null, $map);
if ($layer instanceof Layer) {
$layer->addTo($map);
}
}
}
}
