#ifndef _PlatformQueryManager_H__
#define _PlatformQueryManager_H__

#include "VisibilityInfo.h"
#include "QueryManager.h"
#include "OgrePlatformHierarchyInterface.h"
#include "VisibilityMesh.h"


namespace Ogre {
  
/** Class which implements the QueryManager for Ogre scene queries.
*/
class __declspec(dllexport) PlatformQueryManager: public GtpVisibility::QueryManager
{
public:
    /** Constructor taking a hierarchy interface as an argument. This allows to operate
	    on different hierarchy types, while reusing the implementation of the query methods.
    */
	PlatformQueryManager(PlatformHierarchyInterface *hierarchyInterface, 
		                 Viewport *vp, 
						 int queryModes)
	: QueryManager(queryModes),
	  mViewport(vp), 
	  mWasInitialised(false),
	  mHierarchyInterface(hierarchyInterface)
	{}
    
    /** Uses the specified point to execute the visibility query in all directions. 
		@sa ComputeCameraVisibility()
    */
    virtual void ComputeFromPointVisibility(const Vector3 &point,
											NodeInfoContainer *visibleNodes,
											MeshInfoContainer *visibleGeometry,
											PatchInfoContainer *visiblePatches,
											const bool relativeVisibility,
											const bool approximateVisibility);
  
	virtual void ComputeCameraVisibility(const Camera &camera,
										 NodeInfoContainer *visibleNodes,
										 MeshInfoContainer *visibleGeometry,
										 PatchInfoContainer *visiblePatches,
										 const bool relativeVisibility,
										 const bool approximateVisibility);
  
	//virtual bool ShootRay(const Ray &ray, std::vector<Mesh *> *visibleMeshes, bool isGlobalLine = false);  

	/** Sets a viewport for rendering.
	*/
	void SetViewport(Viewport *vp);

protected:

	Viewport *mViewport;
	bool mWasInitialised;

	PlatformHierarchyInterface *mHierarchyInterface;
};

} // namespace Ogre

#endif // PlatformQueryManager