| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program 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 2

 * of the License, or (at your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.cresques.filter.bands;

import java.awt.Image;

import java.awt.image.BufferedImage;

import org.cresques.io.data.RasterBuf;

import org.cresques.io.datastruct.Palette;

/**

 * Filtro de paleta a aplicar sobre una imagen con tipo de dato integer. Para cada elemento

 * del RasterBuf se realiza la conversi?n de dato a trav?s de la clase palette que se pasa

 * como par?metro al filtro en la inicializaci?n.

 * 

 * @author Nacho Brodin (brodin_ign@gva.es)

 *

 */

public class PaletteIntFilter extends PaletteFilter {

        private int[]                 px = new int[4];

        /**

         * Constructor

         *

         */

        public PaletteIntFilter(){

                super();

        }

        public void pre(){

                this.raster = (RasterBuf) params.get("raster");

                height = raster.getHeight();

        width = raster.getWidth();

        rasterResult = new RasterBuf(raster.getDataType(),width,height,3,true);

                super.pre();

        }

        public void process(int col, int line) {

        raster.getElemInt(line, col, px);

        int rgb;

        if(interpolate)

                rgb = palette.getInterpolateRGB2(px[0]);

        else

                rgb = palette.getRGB(px[0]);

        int pxOut[] = {(rgb & 0x00ff0000) >> 16,

                                                (rgb & 0x0000ff00) >> 8, 

                                                (rgb & 0x000000ff)};

        rasterResult.setElemInt(line, col,pxOut);

        }

         /* (non-Javadoc)

     * @see org.cresques.io.raster.IRasterFilter#processSuperSampling(int, int)

     */

        public void processSuperSampling(int col, int line) {

                raster.getElemInt(line, col, px);

                int rgb;

        if(interpolate)

                rgb = palette.getInterpolateRGB2(px[0]);

        else

                rgb = palette.getRGB(px[0]);

        int pxOut[] = {(rgb & 0x00ff0000) >> 16,

                                (rgb & 0x0000ff00) >> 8, 

                                (rgb & 0x000000ff)};

        for(int j = col; j < width && j < (col + stepX[contX + 1]); j++)

                        for(int i = line; i < height && i < (line + stepY[contY + 1]); i++)

                                rasterResult.setElemInt(i, j,pxOut);                

        }

        public void processLine(int y) {

                // TODO Auto-generated method stub

        }

        public int getInRasterDataType() {

                return RasterBuf.TYPE_INT;

        }

        public int getOutRasterDataType() {

                return RasterBuf.TYPE_INT;

        }

        public Object getResult(String name) {

                if (name.equals("raster")) {

                        if(isExec())

                                return (Object) this.rasterResult;

                        else

                                return (Object) this.raster;

        } else {

            return null;

        }

        }

}