| gvSIG desktop 1

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

 *

 * Copyright (C) 2006 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.raster.grid.filter.statistics;

import java.util.ArrayList;

import org.gvsig.i18n.Messages;

import org.gvsig.raster.dataset.Params;

import org.gvsig.raster.grid.filter.IRasterFilterListManager;

import org.gvsig.raster.grid.filter.RasterFilter;

import org.gvsig.raster.grid.filter.RasterFilterList;

import org.gvsig.raster.grid.filter.RasterFilterListManager;

import org.gvsig.raster.hierarchy.IStatistics;

import org.gvsig.raster.util.extensionPoints.ExtensionPoints;

import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton;

/**

 * Gestor de la pila de filtros para filtros estad?sticos.

 *

 * @version 31/05/2007

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

 */

public class StatisticsListManager implements IRasterFilterListManager {

        protected RasterFilterList                        filterList                                = null;

        private RasterFilterListManager        filterListManager        = null;

        private IStatistics                                                        stats                                                        = null;

        /**

         * Constructor. Asigna el gestor de todos los filtros y el objeto que

         * contiene las estad?sticas.

         * @param filterListManager Gestor general de filtros donde se registran los gestores de filtros

         * de las extensiones

         * @param stats Estadisticas

         */

        public StatisticsListManager(RasterFilterListManager filterListManager) {

                this.filterListManager = filterListManager;

                this.filterList = filterListManager.getFilterList();

                stats = (IStatistics)filterListManager.getFilterList().getEnvParam("IStatistics");

        }

        public static void register() {

                ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance();

                extensionPoints.add("RasterFilter", "Statistics", StatisticsListManager.class);

        }

        /**

         * Constructor. Asigna el gestor de todos los filtros y el objeto que

         * contiene las estad?sticas.

         * @param filterListManager Gestor general de filtros donde se registran los gestores de filtros

         * de las extensiones

         * @param stats Estadisticas

         */

        public StatisticsListManager(RasterFilterListManager filterListManager, IStatistics stats) {

                this(filterListManager);

                this.stats = stats;

        }

        /**

         * A?ade un filtro de recorte de colas.

         * @param tail porcentaje de recorte

         * @param samples porcentaje de muestras tomadas del total de la imagen

         * @param removeMaxValue

         * @param stats

         */

        public void addTailFilter(double tail, double samples, boolean removeMaxValue, IStatistics stats) {

                RasterFilter filter = createTailFilter(tail, samples, removeMaxValue, stats);

                if (filter != null)

                        filterList.add(filter);

        }

        public static RasterFilter createTailFilter(double tail, double samples, boolean removeMaxValue, IStatistics stats) {

                RasterFilter filter = new TailTrimFloatFilter();

                if (filter != null) {

                        filter.addParam("stats", stats);

                        filter.addParam("tail", new Double(tail));

                        filter.addParam("samples", new Double(samples));

                        filter.addParam("remove", new Boolean(removeMaxValue));

                }

                return filter;

        }

        /*

         * (non-Javadoc)

         *

         * @see org.gvsig.raster.grid.filter.IRasterFilterListManager#getStringsFromFilterList(java.util.ArrayList,

         *      org.gvsig.raster.grid.filter.RasterFilter)

         */

        public ArrayList getStringsFromFilterList(ArrayList filterList, RasterFilter rf) {

                if (rf instanceof TailTrimFilter) {

                        filterList.add("filter.tail.active=true");

                        filterList.add("filter.tail.value=" + ((TailTrimFilter) rf).tailPercent);

                        filterList.add("filter.tail.remove=" + ((TailTrimFilter) rf).removeMaxValue());

                }

                return filterList;

        }

        /*

         * (non-Javadoc)

         *

         * @see org.gvsig.raster.grid.filter.IRasterFilterListManager#createFilterListFromStrings(java.util.ArrayList,

         *      java.lang.String, int)

         */

        public int createFilterListFromStrings(ArrayList filters, String fil, int filteri) {

                if (fil.startsWith("filter.tail.active") && RasterFilterListManager.getValue(fil).equals("true")) {

                        filters.remove(filteri);

                        filterListManager.removeFilter(Messages.getText(TailTrimFilter.names[0]));

                        double recorte = 0D;

                        boolean remove = false;

                        for (int propFilter = 0; propFilter < filters.size(); propFilter++) {

                                String elem = (String) filters.get(propFilter);

                                if (elem.startsWith("filter.tail.value")) {

                                        recorte = Double.parseDouble(RasterFilterListManager.getValue(elem));

                                        filters.remove(propFilter);

                                        propFilter--;

                                }

                                if (elem.startsWith("filter.tail.remove")) {

                                        remove = Boolean.valueOf(RasterFilterListManager.getValue(elem)).booleanValue();

                                        filters.remove(propFilter);

                                        propFilter--;

                                }

                        }

                        this.addTailFilter(recorte, 0D, remove, stats);

                        filteri = -1;

                }

                return filteri;

        }

        /*

         * (non-Javadoc)

         *

         * @see org.gvsig.raster.grid.filter.IRasterFilterListManager#getRasterFilterList()

         */

        public ArrayList getRasterFilterList() {

                ArrayList filters = new ArrayList();

                filters.add(TailTrimFilter.class);

                return filters;

        }

        public void addFilter(Class classFilter, Params params) {

                // TODO: FUNCIONALIDAD: Implementacion de a?adir un filtro

        }

}