| 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.enhancement;

import java.util.ArrayList;

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.util.extensionPoints.ExtensionPoints;

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

/**

 * Gestor de los filtros de brillo y contraste. Contiene m?todos para a?adir

 * ambos tipos de filtro en la pila.

 * 

 * @author Miguel ?ngel Querol Carratal? (miguelangel.querol@iver.es)

 */

public class BrightnessContrastListManager implements IRasterFilterListManager {

        protected RasterFilterList                        filterList                                = null;

        private RasterFilterListManager        filterListManager        = null;

        /**

         * Constructor. Asigna la lista de filtros y el manager.

         * @param filterListManager

         */

        public BrightnessContrastListManager(RasterFilterListManager filterListManager) {

                this.filterListManager = filterListManager;

                this.filterList = filterListManager.getFilterList();

        }

        /**

         * Registrar los manager en los puntos de extension

         */

        public static void register() {

                ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance();

                extensionPoints.add("RasterFilter", "BrightnessContrast", BrightnessContrastListManager.class);

        }

        /**

         * A?ade un filtro de brillo a la pila de filtros.

         * @param incrBrillo valor de brillo a aplicar

         * @param removeAll true si se desea eliminar cualquier filtro de brillo que

         * hubiera en la pila antes y false si se acumula sobre lo que haya

         */

        public void addBrightnessFilter(int incrBrillo) {

                RasterFilter filter = createBrightnessFilter(incrBrillo);

                if (filter != null)

                        filterList.add(filter);

        }

        public static RasterFilter createBrightnessFilter(int incrBrillo) {

                RasterFilter filter = new BrightnessByteFilter();

                // Cuando el filtro esta creado, tomamos los valores y lo a?adimos a la pila

                if (filter != null) {

                        filter.addParam("incrBrillo", new Integer(incrBrillo));

                }

                return filter;

        }

        /**

         * A?ade un filtro de contraste a la pila de filtros.

         * @param incrBrillo

         */

        public void addContrastFilter(int incrContraste) {

                RasterFilter filter = createContrastFilter(incrContraste);

                // Cuando el filtro esta creado, tomamos los valores y lo a?adimos a la pila

                if (filter != null)

                        filterList.add(filter);

        }

        public static RasterFilter createContrastFilter(int incrContraste) {

                RasterFilter filter = new ContrastByteFilter();

                // Cuando el filtro esta creado, tomamos los valores y lo a?adimos a la pila

                if (filter != null)

                        filter.addParam("incrContraste", new Integer(incrContraste));

                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 BrightnessFilter) || (rf instanceof ContrastFilter)) {

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

                }

                if (rf instanceof BrightnessFilter) {

                        BrightnessFilter bright = (BrightnessFilter) rf;

                        filterList.add("filter.brightness.incrBrillo=" + bright.incrBrillo);

                } else if (rf instanceof ContrastFilter) {

                        ContrastFilter contrast = (ContrastFilter) rf;

                        filterList.add("filter.contrast.incrContraste=" + contrast.incrContraste);

                }

                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.brightCont.active")) && (RasterFilterListManager.getValue(fil).equals("true"))) {

                        int incrBrillo = 0;

                        int incrContraste = 0;

                        filters.remove(0);

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

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

                                if (elem.startsWith("filter.brightness.incrBrillo")) {

                                        incrBrillo = Integer.parseInt(RasterFilterListManager.getValue(elem));

                                        filters.remove(prop);

                                        prop--;

                                }

                                if (elem.startsWith("filter.contrast.incrContraste")) {

                                        incrContraste = Integer.parseInt(RasterFilterListManager.getValue(elem));

                                        filters.remove(prop);

                                        prop--;

                                }

                        }

                        addBrightnessFilter(incrBrillo);

                        addContrastFilter(incrContraste);

                }

                return filteri;

        }

        /*

         * (non-Javadoc)

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

         */

        public ArrayList getRasterFilterList() {

                ArrayList filters = new ArrayList();

                filters.add(BrightnessFilter.class);

                filters.add(ContrastFilter.class);

                return filters;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.IRasterFilterListManager#addFilter(java.lang.Class, org.gvsig.raster.dataset.Params)

         */

        public void addFilter(Class classFilter, Params params) {

                if (classFilter.equals(ContrastFilter.class)) {

                        int contrast = 0;

                        for (int i = 0; i < params.getNumParams(); i++) {

                                if (params.getParam(i).id.equals("Contrast"))

                                        contrast = new Integer(params.getParam(i).defaultValue).intValue();

                        }

                        addContrastFilter(contrast);

                }

                if (classFilter.equals(BrightnessFilter.class)) {

                        int brightness = 0;

                        for (int i = 0; i < params.getNumParams(); i++) {

                                if (params.getParam(i).id.equals("Brightness"))

                                        brightness = new Integer(params.getParam(i).defaultValue).intValue();

                        }

                        addBrightnessFilter(brightness);

                }

        }

}