gre/3dtextur.h

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/*** 
 * \file gre/3dtextur.h
 * \brief Base class for texturing algorithm
 *
 * \if NODOC
 * $Id: 3dtextur.h_v 1.28 2005/11/10 18:27:55 vdronov Exp $
 *
 * $Log: 3dtextur.h_v $
 * Revision 1.28  2005/11/10 18:27:55  vdronov
 * *** empty log message ***
 *
 * Revision 1.27  2005/11/10 18:09:02  vdronov
 * *** empty log message ***
 *
 * Revision 1.26  2005/10/19 20:07:14  mju
 * Use gre namespace instead of legacy typedefs.
 *
 * Revision 1.25  2005/10/05 16:26:18  mju
 * Include gre base hdr.
 *
 * Revision 1.24  2005/03/15 18:49:48  mju
 * Remove incorrect comment.
 *
 * Revision 1.23  2004/09/20 17:37:00  vdronov
 * added fence drawing
 *
 * Revision 1.22  2004/09/03 16:56:35  vdronov
 * *** empty log message ***
 *
 * Revision 1.21  2004/08/12 22:17:23  vdronov
 * added SetPedestalcoordRef
 *
 * Revision 1.20  2004/08/12 19:39:10  vdronov
 * added ClearPedestal
 *
 * Revision 1.19  2004/08/11 23:03:51  vdronov
 * *** empty log message ***
 *
 * Revision 1.18  2004/08/03 20:30:04  vdronov
 * *** empty log message ***
 *
 * Revision 1.17  2004/07/30 19:10:05  vdronov
 * *** empty log message ***
 *
 * Revision 1.16  2004/06/28 20:42:43  vdronov
 * *** empty log message ***
 *
 * Revision 1.15  2004/06/17 17:26:47  vdronov
 * added formula texture class
 *
 * Revision 1.14  2004/01/14 01:21:54  vdronov
 * made some changes
 *
 * Revision 1.13  2003/12/22 17:50:07  vdronov
 * *** empty log message ***
 *
 * Revision 1.12  2003/10/02 16:18:21  linux32build!build
 * Doxygen
 *
 * Revision 1.11  2003/09/15 13:48:59  fileserver!dwilliss
 * Doxygen
 *
 * Revision 1.10  2003/08/15 17:03:05  vdronov
 * nc
 *
 * Revision 1.9  2003/08/15 16:55:14  vdronov
 * add docs
 *
 * Revision 1.8  2003/07/30 14:27:36  mju
 * Check inclusion guards.
 * Ignore private section.
 * Make pure virtual methods private.
 *
 * Revision 1.2  2003/03/24 20:39:15  vdronov
 * added forward GRE_LAYER
 *
 * Revision 1.1  2003/03/10 15:08:04  vdronov
 * Initial revision
 * \endif
**/ 

#ifndef  INC_GRE_3DTEXTUR_H
#define  INC_GRE_3DTEXTUR_H

#ifndef  INC_GRE_BASE_H
#include <gre/base.h>
#endif

#ifndef  INC_GRE_3DUTILS_H
#include <gre/3dutils.h>
#endif

#ifndef  INC_GRE_3DSCENE_H
#include <gre/3dscene.h>
#endif

#ifndef  INC_MI32_MGD2_H
#include <mi32/mgd2.h>
#endif

namespace GRE {

#ifndef GENERATING_DOXYGEN_OUTPUT
class TEXTUREFILTER;
class CONTROLLER;
class TERRAIN;
class DRAWINGCONTEXT3D;
class BOUNDPARM;
#endif // GENERATING_DOXYGEN_OUTPUT

//! Base class for 3D texture models.
class TEXTURE {
   public:

   class IMPL_FACTORY {
      public:
         virtual TEXTURE *v_ConstructImpl () = 0;
      };

#define  DECLARE_TEXTURE_IMPL_FACTORY(name,model)                    \
   class TEXTURE_IMPL_FACTORY_##name : public GRE::TEXTURE::IMPL_FACTORY { \
      public:                                               \
      TEXTURE_IMPL_FACTORY_##name (                            \
      ) { GRE::TEXTURE::Register(this,model); }                   \
      virtual GRE::TEXTURE *v_ConstructImpl () {                     \
      return (new GRE::name);                                  \
         }                                               \
      };                                                 \
   static TEXTURE_IMPL_FACTORY_##name s_TextureImplFactory_##name;

      enum MODEL {
         MODEL_Default = 0,
         MODEL_SimpleRaster = 0,
         MODEL_Formula = 1,
         MODEL_Count = 2
         };

      static void Register (
         IMPL_FACTORY* factory,
         const MODEL model
         );

      //! GetName returns a name of the given model enum
      //!
      //! @return char pointer of the name
      static const char* GetName (
         MODEL model
         );

      //! GetDescription returns a description of the given model enum
      //!
      //! @return char pointer of the description
      static const char* GetDescription (
         MODEL model
         );

      //! GetInstance returns a new instance of the given model enum
      //!
      //! @return pointer to new model
      static TEXTURE* GetInstance (
         MODEL model
         );

      virtual ~TEXTURE (                        //! Destructor
         );

      //! GetName returns a name of the model
      //!
      //! @return char pointer of the name
      const char* GetName (
         ) const;

      //! GetDescription returns a description of the model
      //!
      //! @return char pointer of the description
      const char* GetDescription (
         ) const;

      //! GetModel returns an enum of the model
      //!
      //! @return enum of the model
      const MODEL GetModel (
         ) const {return m_Model; };

      //! Create new instance of texture model
      //!
      //! @return instance of texture model
      TEXTURE* CreateInstance (
         ) { return v_CreateInstance(); };

      //!   Build internal structures for texture construction for given drape layer 
      //!
      //! @return 0 if built or < 0 if an error
      ERRVALUE Build (
         const GRE::LAYER* layer
         ) { return v_Build(layer); };

      //!   Free internal structures for texture construction 
      void Free (
         ) { v_Free(); return; };

      //!   Is internal structures for texture construction built? 
      //!
      //! @return true if built or false if an error
      bool IsBuilt (
         );

      //! Begining of texture retriving for given scene
      void Begin (
         const SCENE3D& scene
         ) { v_Begin(scene); return; };

      //! Rnding of texture retriving
      void End (
         ) { v_End(); return; };

      //! Get extents in map projection coordinates
      //!
      //! @return extents
      const DRECT2D& GetExtents (
         ) { return v_GetExtents(); };

      //! Set model map projection be used for output data
      void SetCoordRefSys (
         const SPATREF::COORDREFSYS& CoordRefSys
         ) { SetPedestalCoordRefSys(CoordRefSys); v_SetCoordRefSys(CoordRefSys); return; };

      //! Get map projection be used for output data 
      const SPATREF::COORDREFSYS GetCoordRefSys (
         ) { return v_GetCoordRefSys(); };

      //! Get color for given cell and depth
      //!
      //! @return true if color was retrived
      bool GetColor (
         const INT32 line,
         const INT32 column,
         const UINT8 depth,
         COLOR& color 
         ) { return v_GetColor(line, column, depth, color); };

      //! Get color for given point in specifyed map projection and depth
      //!
      //! @return true if color was retrived
      bool GetColor (
         const DPOINT2D& point,
         const UINT8 depth,
         COLOR& color 
         ) { return v_GetColor(point, depth, color); };

      //! Check if for given depth pyramid tier exist
      //!
      //! @return the nearest lower depth
      UINT8 CheckDepth (
         const UINT8 depth
         ) { return v_CheckDepth(depth); };

      //! Get transformation from object coordinates to specifyed map projection
      //!
      //! @return TRANS2D_MAPGEN&
      const TRANS2D_MAPGEN& GetTransformationInternalToModel (
         ) { return v_GetTransformationInternalToModel(); };

      //!   Set boundary wall pedestal for terrain and texture
      //!
      //! @return >= 0 if set is done
      ERRVALUE SetBoundaryWall (
         const SCENE3D& scene,
         TERRAIN* terrain
         );

      //!   Draw given pedestal
      //!
      //! @return >= 0 if set is done
      ERRVALUE DrawBoundaryWall (
         CONTROLLER &controller,        
         DRAWINGCONTEXT3D& drawing,
         GRE::BOUNDPARM& boundparm
         );

      const REGION2D& GetBoundary (
         ) { 
         if (m_Boundary.IsEmpty()) v_CreateBoundary(m_Boundary); 
         return m_Boundary;
         };


      void ClearPedestal (
         ) { 
         m_PolyLineList.Clear();
         return;
         };


      void ClearBoundary (
         ) { 
         m_Boundary.Clear();
         return;
         };

      bool IsBoundaryChanged (
         ) const { 
         return m_Boundary.IsEmpty();
         };

   protected:

      TEXTURE (   
         const char* name,
         const char* desc,
         const MODEL model
         );

      //!   Set built state? 
      void SetBuilt (
         const bool built
         );

   private:

      #ifndef GENERATING_DOXYGEN_OUTPUT

      typedef SIMPLE_ARRAY<INT32> BASEINDEX;
      typedef MILIST<BASEINDEX> BASEINDEXLIST;

      static IMPL_FACTORY* s_ImplFactories[MODEL_Count];

      const char* m_Name;
      const char* m_Description;
      const MODEL m_Model;

      bool m_Built;                             //!<  Is an object built?

      REGION2D m_Boundary;

      REGION2D m_FinalBoundary;
      POLYLINELIST m_PolyLineList;
      BASEINDEXLIST m_BaseIndexList;
      SPATREF::COORDREFSYS m_PolyLineCoordRefSys;
      TRIANGULATION m_Triangulation;
      SCENE3D *m_Scene;

      TEXTURE (   
         );

      TEXTURE (                                 //! Copy constructor (not implemented)
         const TEXTURE &rhs
         );

      TEXTURE& operator= (                      //! Assignment operator (not implemented)
         const TEXTURE& rhs
         );

      #endif // GENERATING_DOXYGEN_OUTPUT

      void SetPedestalCoordRefSys (
         const SPATREF::COORDREFSYS& CoordRefSys
         );

      virtual TEXTURE* v_CreateInstance (
         ) = 0;

      virtual ERRVALUE v_Build (
         const GRE::LAYER *layer
         ) = 0;

      virtual void v_Free (
         ) = 0;

      virtual void v_Begin (
         const SCENE3D& scene
         ) = 0;

      virtual void v_End (
         ) = 0;

      virtual const DRECT2D& v_GetExtents (
         ) = 0;

      virtual void v_CreateBoundary (
         REGION2D& boundary
         ) = 0;

      virtual void v_SetCoordRefSys (
         const SPATREF::COORDREFSYS& CoordRefSys
         ) = 0;

      virtual const SPATREF::COORDREFSYS v_GetCoordRefSys (
         ) = 0;

      virtual bool v_GetColor (
         const INT32 line,
         const INT32 column,
         const UINT8 depth,
         COLOR& color 
         ) = 0;

      virtual bool v_GetColor (
         const DPOINT2D& point,
         const UINT8 depth,
         COLOR& color 
         ) = 0;

      virtual UINT8 v_CheckDepth (
         const UINT8 depth
         ) = 0;

      virtual const TRANS2D_MAPGEN& v_GetTransformationInternalToModel (
         ) = 0;

   };

}     // End of GRE namespace

#endif

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