grpGrid.h

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/*********************************************************************
** Copyright (c) 1999 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: grpGrid.h,v $ $Revision: 1.7 $ $State: Exp $
*********************************************************************/

#ifndef grpGrid_H_
#define grpGrid_H_

#include "ctdb/ctdbDefines.h"
// \file grpGrid.h
// Contains the DtGroupGrid class declaration.

// forward declarations
class DtGroup;
class DtTerrainReader;

class DT_DLL_ctdb DtGroupGrid
{
public:

   // default constructor
   DtGroupGrid();

   // additional constructor
   DtGroupGrid(int numWide, int numHigh, DtTerrainReader* reader);

   // destructor
   virtual ~DtGroupGrid();

   // If a copy constructor is implemented, the assignment operator should
   // also be implemented.  Should generally implement both of them anyway to
   // avoid memory problems due to inappropriate compiler provided defaults.
   // Access varies so need to put proper access keyword above these 
   // declarations.

   virtual DtTerrainReader* reader() const;
   
   virtual void addToGroup(int x, int y, DtGroup* g);
   
    
   virtual DtGroup* make_hierarchy();


   virtual int grpnum_from_xy(int x, int y);

public:

   static int div2roundup(int i);

protected:

   // copy constructor
   DtGroupGrid(const DtGroupGrid& orig);

   // assignment operator
   DtGroupGrid& operator=(const DtGroupGrid& orig);


protected:

   int nwide;
   int nhigh;
   int ngrps;

   DtGroup** myGroup;
   DtTerrainReader* myReader;

};

inline DtTerrainReader* DtGroupGrid::reader() const
{
   return myReader;
}

#endif