#ifndef _VisibilityDummyQueryManager_H__
#define _VisibilityDummyQueryManager_H__

#include "VisibilityInfo.h"
#include "QueryManager.h"

namespace GtpVisibility {
    
/** This implements dummy visibility queries. The queries return only the root of the
	hierarchy as visible node.
*/
class DummyQueryManager: public QueryManager
{
public:
    /** Constructor taking a scene traverser for a specific type of hierarchyInterface
		as argument. 
    */
    DummyQueryManager( HierarchyInterface *hierarchyInterface ):
      QueryManager(hierarchyInterface, 0) {}
    
    /**
       @sa QueryManager::ComputeCameraVisibility()
     */
    virtual void ComputeCameraVisibility(const Camera &camera,
										 NodeInfoContainer *visibleNodes,
										 MeshInfoContainer *visibleGeometry,
										 PatchInfoContainer *visiblePatches,
										 const bool relativeVisibility,
										 const bool approximateVisibility);
    
    /**
       @sa QueryManager::ComputeFromPointVisibility()
    */
    virtual void ComputeFromPointVisibility(const Vector3 &point,
										    NodeInfoContainer *visibleNodes,
											MeshInfoContainer *visibleGeometry,
											PatchInfoContainer *visiblePatches,
											const bool relativeVisibility,
											const bool approximateVisibility);
};
  
}
#endif // VisibilitySummyQueryManager