/**
* Constructor of BsFilterCategory class
* @param BsDiagram $oDiagram Instance of diagram the filter is used with.
*/
public function __construct($oDiagram)
{
parent::__construct($oDiagram);
}
/**
* Adds a filter to list of available filters
* @param BsStatisticsFilter $oFilter
*/
public function addFilter($oFilter)
{
$this->aFilters[$oFilter->getParamKey()] = $oFilter;
}