Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.raster.impl.grid.filter.band;

import java.util.ArrayList;

import java.util.List;

import org.gvsig.fmap.dal.coverage.dataset.Buffer;

import org.gvsig.fmap.dal.coverage.datastruct.Params;

import org.gvsig.fmap.dal.coverage.exception.FilterTypeException;

import org.gvsig.fmap.dal.coverage.grid.AbstractRasterFilterManager;

import org.gvsig.fmap.dal.coverage.grid.RasterFilter;

import org.gvsig.fmap.dal.coverage.grid.RasterFilterList;

import org.gvsig.fmap.dal.coverage.grid.filter.BaseRasterFilter;

import org.gvsig.raster.impl.grid.filter.RasterFilterListManagerImpl;

import org.gvsig.raster.impl.store.ParamImpl;

/**

 * Gestor del filtro de conversi?n de HSL a RGB.

 *

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

 *

 */

public class HSLToRGBManager  extends AbstractRasterFilterManager {

        private static String   ID = "HSLToRGB";

        /**

         * Default constructor. Sets the filter list.

         * @param filterList

         */

        public HSLToRGBManager(RasterFilterList filterList) {

                super(filterList);

        }

        public String getManagerID() {

                return ID;

        }

        public static void register() {

                AbstractRasterFilterManager.register(ID, HSLToRGBManager.class);

        }

        public boolean isDataTypeSupported(int dataType) {

                if(dataType != Buffer.TYPE_BYTE)

                        return false;

                return true;

        }

        public Class<?> getFilterClassByID(String id) {

                if( id.compareTo("hsltorgb") == 0)

                        return HSLToRGBFilter.class;

                return null;

        }

        /**

         * Constructor.

         * Asigna la lista de filtros y el managener global.

         *

         * @param filterListManager

         */

        public HSLToRGBManager(RasterFilterListManagerImpl filterListManager) {

                super(filterListManager.getFilterList());

        }

        /**

         * A?ade un filtro de conversi?n de RGB a HSL a la pila de filtros.

 * @throws FilterTypeException

         */

        public void addHSLToRGBFilter(int[] renderBands) throws FilterTypeException {

                BaseRasterFilter filter = new HSLToRGBByteFilter();

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

                if (filter != null) {

                        getFilterList().add(filter);

                        filter.addParam("renderBands", renderBands);

                }

        }

        public List<Class<?>> getRasterFilterList() {

                List<Class<?>> filters = new ArrayList<Class<?>>();

                filters.add(HSLToRGBFilter.class);

                return filters;

        }

        public void addFilter(Class<?> classFilter, Params params) throws FilterTypeException {

                if (HSLToRGBFilter.class.isAssignableFrom(classFilter)) {

                        int[] renderBands = { 0, 1, 2, 3 };

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

                                if (((ParamImpl)params.getParam(i)).getId().equals("RenderBands") &&

                                                ((ParamImpl)params.getParam(i)).getDefaultValue() instanceof String) {

                                        String[] bands = new String((String) ((ParamImpl)params.getParam(i)).getDefaultValue()).split(" ");

                                        renderBands[0] = new Integer(bands[0]).intValue();

                                        renderBands[1] = new Integer(bands[1]).intValue();

                                        renderBands[2] = new Integer(bands[2]).intValue();

                                        continue;

                                }

                                if (((ParamImpl)params.getParam(i)).getId().equals("alphaBand") &&

                                                ((ParamImpl)params.getParam(i)).getDefaultValue() instanceof Integer) {

                                        renderBands[3] = (Integer)((ParamImpl)params.getParam(i)).getDefaultValue();

                                        continue;

                                }

                        }

                        addHSLToRGBFilter(renderBands);

                }

        }

        public void addFilter(Params params) throws FilterTypeException {

                addFilter(HSLToRGBFilter.class, params);

        }

        public RasterFilter createFilter(Params params) {

                int[] renderBands = { 0, 1, 2 };

                String b = ((String) params.getParamById("RenderBands").getDefaultValue());

                String[] bands = b.split(" "); 

                renderBands[0] = new Integer(bands[0]).intValue();

                renderBands[1] = new Integer(bands[1]).intValue();

                renderBands[2] = new Integer(bands[2]).intValue();

                RasterFilter filter = new HSLToRGBByteFilter();

                filter.addParam("renderBands", renderBands);

                return filter;

        }

}