| gvSIG desktop 1

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

 *

 * Copyright (C) 2004-2006 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.

 *

 * For more information, contact:

 *

 *   Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Iba?ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *   +34 963862235

 *   gvsig@gva.es

 *   www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.publish.infoproject;

import java.awt.geom.Rectangle2D;

import org.gvsig.publish.PublishLogger;

import org.gvsig.publish.infoproject.datasources.DataSourceInfoFactory;

import org.gvsig.publish.infoproject.datasources.IRasterDSInfo;

import org.gvsig.publish.infoproject.legends.LegendInfoFactory;

import com.iver.cit.gvsig.fmap.DriverException;

import com.iver.cit.gvsig.fmap.core.v02.FSymbol;

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

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

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

import com.iver.cit.gvsig.fmap.rendering.Legend;

import com.iver.cit.gvsig.fmap.rendering.VectorialLegend;

import com.iver.cit.gvsig.project.documents.view.ProjectView;

import com.iver.utiles.XMLEntity;

/**

 * TODO: When the tree changes I'm creating a new LayerInfo

 * Is this correct? 

 * 

 * @author Jos? Vicente Hig?n (josevicente.higon@iver.es)

 *

 */

public class LayerInfo implements ILayerInfo {

        private FLayer layer = null;

        private ILayerInfo parent = null;

        private LayerInfo[] layers = null;

        private ProjectView view=null;

        private IViewInfo iview = null;

        /**

         * Constructor

         * @param flayer from gvSIG

         * @param view from gvSIG. It contains a set of layers

         * @param viewInfo information about the view in which this layer is 

         * @param parent information about the parent layer. If it hasn't parent you can use null

         * 

         * 

         * TODO: I must do an exception if the layer is not a FLyrVect or FLyrRaster 

         */

        public LayerInfo(FLayer flayer, ProjectView view, IViewInfo viewInfo, ILayerInfo parent){

                this.parent = parent;

                this.iview = viewInfo;

                this.layer = flayer;

                this.view=view;

                if (flayer instanceof FLayers){

                        createChilds();        

                }

        }

        private void createChilds(){

                //System.err.println("Nuevo grupo: " + layer.getName());

                FLayers flayers = (FLayers)layer;

                layers = new LayerInfo[flayers.getLayersCount()];

                //I start in the second element in order to avoid the flayer itself

                for (int i = 0; i< flayers.getLayersCount();i++){

                        layers[i] = new LayerInfo(flayers.getLayer(i),view, iview, this);

                }

        }

        public IDataSourceInfo getDataSource() {                                

                return DataSourceInfoFactory.getInstance(this.layer);                

        }

        public Object getLegend() {                

                return LegendInfoFactory.getInstance(this.layer);

        }

        public double getMinscale() {

                return layer.getMinScale();

        }

        public String getName() {                

                return this.layer.getName();

        }

        public String getTitle() {

                return this.layer.getName();

        }

        public ILayerInfo[] getChilds() {

                // TODO Auto-generated method stub

                return layers;

        }

        public String toString(){

                return getName();

        }

        public IViewInfo getViewInfo() {                

                return iview;

        }

        public String getCRS() {

                return layer.getProjection().getAbrev();

        }

        public Rectangle2D getBBox() {

                Rectangle2D extent = null;

                try {

                        extent = layer.getFullExtent();

                } catch (DriverException e) {

                        PublishLogger.getLog().error("ERROR LayerInfo: I can't get the extent", e);

                } 

                return extent;

        }

        public double getMaxscale() { 

                return layer.getMaxScale();

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml=new XMLEntity();

                //I put the name of the interface because RemoteResource musn't know LayerInfo, only ILayerInfo !!

                xml.putProperty("className", ILayerInfo.class.getName());

                xml.putProperty("layerName", ((FLayer) layer)

                                .getName());

                xml.putProperty("viewName", view.getName());

                return xml;

        }

        public void setXMLEntity(XMLEntity xml) {

                //At the moment .. nothing 

        }

/*

 * (non-Javadoc)

 * @see org.gvsig.publish.infoProject.ILayerInfo#getOpacityPercent()

 */

        public int getOpacityPercent() {

                if (layer instanceof FLyrVect){

                        FLyrVect v = (FLyrVect)layer;

                        FSymbol s = (FSymbol)v.getLegend().getDefaultSymbol();

                        int transparency = s.getColor().getAlpha();

                        double opacity = transparency * 0.39;

                        opacity = Math.ceil(opacity);

                        return new Double(opacity).intValue();

                }else{

                        //I get the transparency from the datasource 

                        IDataSourceInfo ds = getDataSource();

                        if (ds.getDataType()== IDataSourceInfo.RASTER_DATA){

                                IRasterDSInfo r = (IRasterDSInfo)ds;

                                int transparency =  r.getTransparency();

                                double opacity = transparency * 0.39;

                                opacity = Math.ceil(opacity);

                                opacity = 100 - opacity;

                                return new Double(opacity).intValue();

                        }else

                                return 100;

                }

        }

        public ILabelingInfo getLabeling() {

                if (layer instanceof FLyrVect){

                        FLyrVect v = (FLyrVect)layer;

                        Legend leg = v.getLegend();

                        if (leg instanceof VectorialLegend) {

                                return new LabelingInfo(v); 

                        }

                }                

                return null;                

        }

        /**

         * @return information about the parent layer

         */

        public ILayerInfo getParent() {

                return this.parent;

        }

        public ILayerInfo findLayer(String layerName) {

                if (getName().equals(layerName)){

                        return this;

                }else{

                        //find the layer in its childs

                        ILayerInfo[] childs = getChilds();

                        if (childs == null){

                                return null;

                        }

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

                                ILayerInfo target;

                                target = childs[i].findLayer(layerName);

                                if (target != null){

                                        return target;

                                }

                        }

                }

                return null;

        }

}