Application: gvSIG desktop » gvSIG raster

package org.gvsig.raster.cache.buffer.impl.rocache;

import java.util.ArrayList;

import org.gvsig.raster.cache.buffer.BufferDataSource;

import org.gvsig.raster.cache.buffer.PxTile;

import org.gvsig.raster.cache.buffer.exception.OperationNotSupportedException;

import org.gvsig.raster.cache.buffer.impl.RasterBuffer;

/**

 * This class represent a double band loaded in memory.

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class DoubleBand extends ReadOnlyCacheBand {

        public DoubleBand(ArrayList<PxTile> stripeList,

                        BufferDataSource dataSource, int offset, int bitsPag, int band,

                        int width, int height) {

                super(stripeList, dataSource, offset, bitsPag, band, width, height, RasterBuffer.TYPE_DOUBLE);

        }

         /*

     * (non-Javadoc)

     * @see org.gvsig.raster.buffer.IRasterBand#getDoubleBlock(int)

     */

        public double[][] getDoubleBlock(int block){

                if(block != loadedPage)

                        loadOrSwapPage(block);

                return page.getBand(0).getDoubleBlock(block);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.buffer.IRasterBand#getElemDouble(int, int)

         */

        public double getElemDouble(int line, int col) {

                int pag = line >> bitsPag;

                if(pag != loadedPage)

                        loadOrSwapPage(pag);

                return page.getElemDouble(line & offset, col, 0);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.buffer.IRasterBand#getDoubleLine(int)

         */

        public double[] getDoubleLine(int line) throws OperationNotSupportedException {

                int pag = line >> bitsPag;

                if(pag != loadedPage)

                        loadOrSwapPage(pag);

                return page.getLineDouble(line & offset)[0];

        }

        /*

         * (non-Javadoc)

         * @see java.lang.Object#clone()

         */

        public Object clone() {

                BufferDataSource ds = dataSource.clone();        

                DoubleBand result = new DoubleBand(stripeList, 

                                ds,

                                offset,

                                bitsPag,

                                nBand,

                                getWidth(),

                                getHeight());

                return result;

        }

}