source: trunk/VUT/Ogre/include/OgrePlatformQueryManager.h @ 173

#ifndef _PlatformQueryManager_H__
#define _PlatformQueryManager_H__

#include "VisibilityInfo.h"
#include "QueryManager.h"
#include "OgrePlatformHierarchyInterface.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,
                                                 bool renderPatches);
    
    /** 
        Uses the specified point to execute the visibility query in all directions. 
        @sa ComputeCameraVisibility()
    */
    void ComputeFromPointVisibility(const Vector3 &point,
                               InfoContainer<GtpVisibility::NodeInfo> *visibleNodes,
                               InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
                                   InfoContainer<GtpVisibility::PatchInfo> *visiblePatches,
                               bool relativeVisibility = false);
  
        void ComputeCameraVisibility(const Camera &camera,
                               InfoContainer<GtpVisibility::NodeInfo> *visibleNodes,
                               InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
                                   InfoContainer<GtpVisibility::PatchInfo> *visiblePatches,
                               bool relativeVisibility = false);
  
        bool ShootRay(const Ray &ray, std::vector<Mesh *> *visibleMeshes, bool isGlobalLine = false);  

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

        void CollectItemBufferResults(
                                InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
                                InfoContainer<GtpVisibility::PatchInfo> *visiblePatches);

        void InitItemBuffer(InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
                                                InfoContainer<GtpVisibility::PatchInfo> *visiblePatches);

        Viewport *mViewport;
        bool mWasInitialised;
        bool mRenderPatches;
};

} // namespace Ogre

#endif // PlatformQueryManager