Grid.hpp

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/*******************************************************************************
 *
 * Copyright (c) 2010-2015   Edans Sandes
 *
 * This file is part of MASA-Core.
 * 
 * MASA-Core 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.
 * 
 * MASA-Core 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 MASA-Core.  If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/

class Grid;

#ifndef GRID_HPP_
#define GRID_HPP_

#include <stdio.h>

#include "Partition.hpp"

class Grid {
public:
        Grid(Partition partition);
        virtual ~Grid();

        void setBlockHeight(int blockHeight);
        void setBlockWidth(int blockWidth);

        void splitGridVertically(int count);
        void splitGridHorizontally(int count);

        void splitGridVertically(int count, int* splits);
        void splitGridHorizontally(int count, int* splits);

        void getBlockPosition(int bx, int by, int* i0, int* j0, int* i1=NULL, int* j1=NULL) const;

        void setMinBlockSize(int minBlockWidth, int minBlockHeight);

        void setAdjustment(int adjustment);
        int  getBlockAdjustment(int bx, int by) const;

        int getGridWidth() const;
        int getGridHeight() const;

        int getBlockWidth(int bx, int by) const;
        int getBlockHeight(int bx, int by) const;

        int getHeight() const;
        int getWidth() const;

        const int* getBlockSplitHorizontal() const;
        const int* getBlockSplitVertical() const;

private:
        int  blockWidth;
        int  blockHeight;
        int  adjustment;
        int  minBlockWidth;
        int  minBlockHeight;

        /*
         * The split vectors will contains the start coordinates of each block.
         * The first element will always be 0 and the last element will have the
         * dimension size. Note that the vector must contain N+1 elements, so the
         * last element is blockSplitXXX[blockCountXXX].
         */
        int  blockCountHorizontal;
        int* blockSplitHorizontal;
        int  blockCountVertical;
        int* blockSplitVertical;

        int width;
        int height;
        Partition partition;

        void getBlockPositionH(int bx, int by, int* j0, int* j1) const;
        void getBlockPositionV(int bx, int by, int* i0, int* i1) const;

};

#endif /* GRID_HPP_ */