miter.hh

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/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
 
#ifndef D_MITER_HH
#define D_MITER_HH
 
#include "raslib/mddtypes.hh"
#include "raslib/minterval.hh"
 
//@ManMemo: Module: {\bf raslib}
class r_Miter
{
public:
    r_Miter(const r_Minterval *newAreaIter,
            const r_Minterval *newAreaTile, r_Bytes newCellSize,
            const char *newFirstCell);
    ~r_Miter();
    void reset();
    inline char *nextCell();
    inline bool isDone();
 
protected:
    // structure storing information on iteration for each dimension
    // (perhaps add dimension for reordering later)
    struct incArrElem
    {
        r_Range repeat;  // total number of repeats
        int inc;         // increment per repeat
        int curr;        // current repeat
    };
    const r_Minterval *areaIter{NULL};
    const r_Minterval *areaTile{NULL};
    const char *firstCell{NULL};
    incArrElem *incArrIter{NULL};
    char *currCell{NULL};
    r_Bytes cellSize{};
    int lowCount{};
    bool done{false};
};
 
#include "miter.icc"
 
#endif