| gvSIG desktop 1

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

 *

 * Copyright (C) 2007 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.fmap.layers;

import java.util.ArrayList;

import org.gvsig.raster.grid.GridTransparency;

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

import org.gvsig.raster.shared.IRasterProperties;

import org.gvsig.raster.util.TransparencyRange;

import com.iver.andami.PluginServices;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.cit.gvsig.fmap.layers.XMLException;

import com.iver.cit.gvsig.project.documents.view.gui.IView;

import com.iver.utiles.XMLEntity;

/**

 * Esta clase almacena el estado de un raster en cuanto a las caracteristicas

 * de opacidad, bandas y filtros. Estas caracter?sticas pueden ser salvadas a 

 * un xml y recuperadas por la capa a trav?s de las funciones setXMLEntity y 

 * getXMLEntity

 * 

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

 */

public class StatusLayerRaster implements StatusRasterInterface {

        public static String                         defaultClass = "org.gvsig.fmap.layers.StatusLayerRaster";

        //Valor de opacidad global de la imagen

        public int                                                transparency = 255;

        //Rangos de transparencia

        public ArrayList                                ranges = new ArrayList();

        //(Selecci?n de bandas)N?mero de banda  asignado al Rojo, verde y azul         

        public int                                                 bandR = 0;

        public int                                                 bandG = 1;

        public int                                                 bandB = 2;

        //Ficheros cargados en un PxRaster 

        public ArrayList                                files = new ArrayList();

        //Filtros para poder montar una nueva pila

        public ArrayList                                filters = new ArrayList();

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.StatusRasterInterface#setXMLEntity(com.iver.utiles.XMLEntity)

         */

        public void setXMLEntity(XMLEntity xml, IRasterProperties layer)throws XMLException {

                //RECUPERAR PROPIEDADES

                //Recuperamos las propiedades de los filtros

                for(int i = 0; i < xml.getPropertyCount(); i++) {

                        if(xml.getPropertyName(i).startsWith("filter."))        

                                filters.add(xml.getPropertyName(i) + "=" + xml.getPropertyValue(i));

                }

                //Rangos de transparencia

                if (xml.contains("filter.transparency.active") && xml.getBooleanProperty("filter.transparency.active")) {

                        int i = 0;

                        String value = null;

                        while(true) {

                                if(xml.contains("filter.transparency.transparencyRange" + i)) {

                                        value = xml.getStringProperty("filter.transparency.transparencyRange" + i);

                                        int alpha = 0;

                                        if(value.indexOf("@") != 0) {

                                                try {

                                                        alpha = Integer.parseInt(value.substring(value.indexOf("@") + 1, value.length()));

                                                } catch (NumberFormatException e) {

                                                        alpha = 0;

                                                }

                                                value = value.substring(0, value.indexOf("@"));

                                        }

                                        TransparencyRange range = new TransparencyRange(value);

                                        if(alpha != 0)

                                                range.setAlpha(alpha);

                                        ranges.add(range);

                                } else 

                                        break;

                                i ++;

                        }

                }

                if (xml.contains("raster.opacityLevel"))

                        transparency = xml.getIntProperty("raster.opacityLevel");

                if (xml.contains("raster.bandR")) 

                        bandR = xml.getIntProperty("raster.bandR");

                if (xml.contains("raster.bandG")) 

                        bandG = xml.getIntProperty("raster.bandG");

                if (xml.contains("raster.bandB")) 

                        bandB = xml.getIntProperty("raster.bandB");

                int cont = 0;

                while(true && cont < 50) {

                        if (xml.contains("raster.file" + cont)) {

                                files.add(xml.getStringProperty("raster.file" + cont));

                                cont++;

                        }else 

                                break;

                }

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.StatusRasterInterface#getXMLEntity(com.iver.utiles.XMLEntity)

         */

        public void getXMLEntity(XMLEntity xml, boolean loadClass, IRasterProperties layer) throws XMLException {

                //SALVAR PROPIEDADES

                if(loadClass)

                        xml.putProperty("raster.class", StatusLayerRaster.defaultClass);

                //Opacidad

                GridTransparency transp = layer.getRender().getLastTransparency();

                if(transp.getOpacity() != 255)

                        xml.putProperty("raster.opacityLevel", "" + transp.getOpacity());

                //Rangos de transparencia

                if(transp.getTransparencyRange().size() > 0) {

                        xml.putProperty("filter.transparency.active", "true");

                        for (int i = 0; i < transp.getTransparencyRange().size(); i++) 

                                xml.putProperty("filter.transparency.transparencyRange" + i, "" + ((TransparencyRange)transp.getTransparencyRange().get(i)).getStrEntry() + "@" + ((TransparencyRange)transp.getTransparencyRange().get(i)).getAlpha());

                }

                //Posici?n de visualizado de bandas

                xml.putProperty("raster.bandR", "" + layer.getRender().getRenderBands()[0]);

                xml.putProperty("raster.bandG", "" + layer.getRender().getRenderBands()[1]);

                xml.putProperty("raster.bandB", "" + layer.getRender().getRenderBands()[2]);

                //Ficheros

                if(files != null && layer.getFileCount() != 0){

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

                                xml.putProperty("raster.file" + i, "" + layer.getFileName()[i]);

                }

                //Salvamos la lista de filtros aplicada en la renderizaci?n.

                //Si la lista es null (esto puede ocurrir cuando se abre un 

                //proyecto que tiene WCS y no se abre la vista de este) entonces hay que leer los filtros

                //que van a salvarse a disco directamente de la variable filters que es la que se ha cargado

                //al hacer el setXMLEntity.

                //Filtros

                RasterFilterListManager filterListManager = null;

                ArrayList l = null;

                if(layer.getRenderFilterList() != null) {

                        filterListManager = new RasterFilterListManager(layer.getRenderFilterList());

                        l = filterListManager.getStringsFromFilterList();

                        if(l == null || l.size() == 0)

                                l = filters;

                }else

                        l = filters;

                for(int i = 0; i < l.size(); i++)

                        xml.putProperty(getElem((String)l.get(i)), getValue((String)l.get(i)));

        }

        /**

         * Obtiene el valor de una cadena de la forma elemento=valor

         * @param cadena 

         * @return

         */

        private String getValue(String cadena) {

                if(cadena!=null)

                        return cadena.substring(cadena.indexOf("=") + 1, cadena.length());

                else 

                        return null;

        }

        /**

         * Obtiene el elemento de una cadena de la forma elemento=valor

         * @param cadena 

         * @return

         */

        private String getElem(String cadena) {

                if(cadena != null)

                        return cadena.substring(0, cadena.indexOf("="));

                else 

                        return null;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.StatusRasterInterface#getFilters()

         */

        public ArrayList getFilters() {

                return this.filters;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.StatusRasterInterface#applyStatus(com.iver.cit.gvsig.fmap.layers.RasterFileAdapter)

         */

        public void applyStatus(IRasterProperties layer) {

                //Eliminamos el fichero inicial y cargamos las bandas si hay para que se carguen 

                //en el orden correcto

                if(layer instanceof FLyrRasterSE) {

                        if(files.size() != 0){

                                //((FLyrRasterSE)layer).delFile((String)files.get(0));

                                for(int i = 1; i < files.size(); i++)

                                        ((FLyrRasterSE)layer).addFile((String)files.get(i));

                        }

                }

                //Asigna las bandas

                int[] renderBands = new int[]{bandR, bandG, bandB};

                layer.getRender().setRenderBands(renderBands);

                //Asigna la transparencia

                GridTransparency transp = layer.getRender().getLastTransparency(); 

                if(transparency != 255) { 

                        transp.setOpacity(transparency);

                        transp.activeTransparency();

                }

                //Rangos de transparencia

                if(ranges != null) {

                        transp.setTransparencyRangeList(ranges);

                        transp.activeTransparency();

                }

                //Filtros

                if(layer.getRenderFilterList() != null) {

                        RasterFilterListManager filterListManager = new RasterFilterListManager(layer.getRenderFilterList());

                        filterListManager.createFilterListFromStrings(filters);

                }

                //Refrescamos todas las vistas

                IWindow[] w = PluginServices.getMDIManager().getAllWindows();

                for (int i = 0; i < w.length; i++) {

                        if(w[i] != null && w[i] instanceof IView) 

                                ((IView)w[i]).getMapControl().getMapContext().invalidate();        

                }

        }

}