IFilterStats.hpp

#ifndef DM_IFILTER_STATS_HPP_INCLUDED
#define DM_IFILTER_STATS_HPP_INCLUDED

#ifdef _MSC_VER
  #pragma once
#endif

#include "DM/IGeometry.hpp"
#include "DM/AutoLink.hpp" //enable autolink

DM_NAMESPACE_BEGIN

/// \brief accumulate statistical information about the results of filtering
/** May be attached to an IFilter, in which case accumulate(.) is called for every result, just before it is returned from the filter.
    Mind that IFilter::clone() does not clone its IFilterStats.
    Thus, if IFilterStats shall be called from multiple threads, then you may need to implement a mutex.
*/
class DM_API IFilterStats : public ObjectBase
{
public:
  virtual void accumulate( GeometryHandle filtered, GeometryHandle orig, bool filterResult ) = 0;
};

typedef Handle< IFilterStats > FilterStatsHandle;


DM_NAMESPACE_END

#endif //DM_IFILTER_STATS_HPP_INCLUDED