Application: gvSIG desktop

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

*

* Copyright (C) 2005 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.gvsig.rastertools.overviews;

import org.apache.log4j.Logger;

import org.gvsig.addo.BuildingOverviewsException;

import org.gvsig.addo.IOverviewIncrement;

import org.gvsig.addo.Jaddo;

import org.gvsig.addo.WritingException;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.raster.Configuration;

import org.gvsig.raster.RasterProcess;

import com.iver.andami.PluginServices;

/**

 * Proceso para la generaci?n de overviews.

 *

 * 10/12/2007

 * @author Nacho Brodin nachobrodin@gmail.com

 */

public class OverviewsProcess extends RasterProcess implements IOverviewIncrement {

        private FLyrRasterSE       rasterSE            = null;

        private int                value = 0;

        private int                resamplingAlg       = Jaddo.AVERAGE;

        private int[]              overviews           = new int[]{2, 4, 8, 16};

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.RasterProcess#init()

         */

        public void init() {

                rasterSE = getLayerParam("layer");

                int overviewsRate = 2;

                int nOverviews = 4;

                overviewsRate = Configuration.getValue("overviews_rate", new Integer(overviewsRate)).intValue();

                nOverviews = Configuration.getValue("overviews_number", new Integer(nOverviews)).intValue();

                resamplingAlg = Configuration.getValue("overviews_resampling_algorithm", new Integer(resamplingAlg)).intValue();

                //Leemos de la configuraci?n los valores de algoritmo a usar,

                //n?mero de overviews a generar y proporci?n de la primera overview

                overviews = new int[nOverviews];

                for (int i = 0; i < nOverviews; i++)

                        overviews[i] = overviewsRate * (i + 1);

        }

        /**

         * M?todo donde se ejecutar? el Thread, aqu? se generaran las

         * overviews

         */

        public void process() {

                insertLineLog(PluginServices.getText(this, "overviews_generating"));

                Jaddo build = new Jaddo();

                build.setIncrementListener(this);

                try {

                        for (int i = 0; i < rasterSE.getFileCount(); i++) {

                                insertLineLog(" Dataset: " + i);

                                build.buildOverviews(resamplingAlg, rasterSE.getFileName()[i], overviews);

                        }

                } catch (BuildingOverviewsException e) {

                        Logger.getLogger(this.getClass().getName()).debug("No se han podido generar las overviews", e);

                } catch (WritingException e) {

                        Logger.getLogger(this.getClass().getName()).debug("No se han podido generar las overviews", e);

                }

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getPercent()

         */

        public int getPercent() {

                return value;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.addo.IOverviewIncrement#setPercent(int)

         */

        public void setPercent(int value) {

                this.value = value;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getTitle()

         */

        public String getTitle() {

                return PluginServices.getText(this, "incremento_overview");

        }

}