| gvSIG desktop 1

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

 *

 * Copyright (C) 2004 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 Ib??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 com.iver.cit.gvsig.fmap.rendering;

import com.hardcode.gdbms.engine.data.DataSource;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.core.ISLDCompatible;

import com.iver.cit.gvsig.fmap.core.SLDTags;

import com.iver.cit.gvsig.fmap.core.SymbologyFactory;

import com.iver.cit.gvsig.fmap.core.symbols.IFillSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.ILineSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.IMarkerSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.ISymbol;

import com.iver.cit.gvsig.fmap.core.symbols.MultiShapeSymbol;

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

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

import com.iver.utiles.XMLEntity;

/**

 * Implements a legend composed by single symbols.

 * 

 * @author   Vicente Caballero Navarro

 */

public class SingleSymbolLegend extends AbstractLegend implements IVectorLegend {

        private ISymbol defaultSymbol;

    private int shapeType = FShape.POLYGON; // Por defecto, tipo pol?gono

        private ZSort zSort;

        /**

         * Constructor method 

         */

        public SingleSymbolLegend() {        }

        /**

         * Convenience fast constructor.

         *

         * @param style S?mbolo.

         */

        public SingleSymbolLegend(ISymbol style) {

                defaultSymbol = style;

                if (style instanceof MultiShapeSymbol) {

                        shapeType = FShape.MULTI;

                } else if (style instanceof IMarkerSymbol) {

                        shapeType = FShape.POINT;

                } else if (style instanceof ILineSymbol) {

                        shapeType = FShape.LINE;

                } else if (style instanceof IFillSymbol) {

                        shapeType = FShape.POLYGON;

                }

        }

        public void setDefaultSymbol(ISymbol s) {

                if (s == null) throw new NullPointerException("Default symbol cannot be null");

                setShapeType(s.getSymbolType());

                ISymbol old = defaultSymbol;

                defaultSymbol = s;

                fireDefaultSymbolChangedEvent(new SymbolLegendEvent(old, s));

        }

        public ISymbol getSymbol(int recordIndex) {

                return defaultSymbol;

        }

        public ISymbol getDefaultSymbol() {

                if(defaultSymbol==null)

                        defaultSymbol=SymbologyFactory.createDefaultFillSymbol();

                return defaultSymbol;

        }

        public String getSLDString(String layerName) {

                try {

                        XmlBuilder xmlBuilder = new XmlBuilder();

                        xmlBuilder.writeHeader();

                        xmlBuilder.openTag(SLDTags.SLD_ROOT, SLDTags.VERSION_ATTR, SLDTags.VERSION_1_0_0);

                        xmlBuilder.openTag(SLDTags.NAMEDLAYER);

                        xmlBuilder.writeTag(SLDTags.NAME,layerName);

                        xmlBuilder.openTag(SLDTags.USERSTYLE);

                        xmlBuilder.openTag(SLDTags.FEATURETYPESTYLE);

                        xmlBuilder.writeTag(SLDTags.FEATURETYPENAME,"FeatureTypeName");

                        xmlBuilder.openTag(SLDTags.RULE);

                        if (this.defaultSymbol instanceof ISLDCompatible) {

                                ISLDCompatible symSLD = (ISLDCompatible) this.defaultSymbol;

                                xmlBuilder.writeRaw(symSLD.toSLD());

                        } else

                                throw new RuntimeException("Cannot convert default Symbol " + this.defaultSymbol.getDescription() + " to SLD");

                        xmlBuilder.closeTag();

                        xmlBuilder.closeTag();

                        xmlBuilder.closeTag();

                        xmlBuilder.closeTag();

                        xmlBuilder.closeTag();

                        return xmlBuilder.getXML();

                } catch (Exception e) {

                        e.printStackTrace();

                        return null;

                }

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

                xml.putProperty("className",this.getClass().getName());

                xml.addChild(defaultSymbol.getXMLEntity());

                if (zSort != null) {

                        XMLEntity zSortXML = zSort.getXMLEntity();

                        zSortXML.putProperty("id", "zSort");

                        xml.addChild(zSortXML);

                }

                return xml;

        }

        public void setXMLEntity03(XMLEntity xml) {

                FSymbol auxSym = FSymbol.createFromXML03(xml.getChild(0));

                setDefaultSymbol(auxSym);

        }

        public void setXMLEntity(XMLEntity xml) {

        ISymbol auxSym = SymbologyFactory.createSymbolFromXML(xml.getChild(0), null);

                setDefaultSymbol(auxSym);

                XMLEntity zSortXML = xml.firstChild("id", "zSort");

                if (zSortXML != null) {

                        zSort = new ZSort(this);

                        zSort.setXMLEntity(zSortXML);

                }

        }

        public ILegend cloneLegend() throws XMLException {

                return (ILegend) LegendFactory.createFromXML(getXMLEntity());

        }

        public void setDataSource(DataSource ds) {

                // No hacemos nada, no lo vamos a usar

        }

        public int getShapeType() {

                return shapeType;

        }

        public void setShapeType(int shapeType) {

                if (this.shapeType != shapeType) {

                        defaultSymbol = SymbologyFactory.createDefaultSymbolByShapeType(shapeType);

                        this.shapeType = shapeType;

                }

        }

    public ISymbol getSymbolByFeature(IFeature feat) {

        return defaultSymbol;

    }

        public void useDefaultSymbol(boolean b) {

                // TODO Auto-generated method stub

        }

    public String[] getUsedFields() {

        return new String[0];

    }

    public boolean isUseDefaultSymbol() {

            return true;

    }

    public ZSort getZSort() {

            return zSort;

    }

        public void setZSort(ZSort zSort) {

                if (zSort == null) {

                        removeLegendListener(this.zSort);

                }

                this.zSort = zSort;

                addLegendListener(zSort);

        }

        public String getClassName() {

                return getClass().getName();

        }

}