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root / trunk / libraries / libGPE-KML / src / org / gvsig / gpe / kml / parser / v21 / geometries / RegionBinding.java @ 21966

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package org.gvsig.gpe.kml.parser.v21.geometries;
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import java.io.IOException;
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import javax.xml.namespace.QName;
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import org.gvsig.gpe.kml.parser.GPEDeafultKmlParser;
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import org.gvsig.gpe.kml.utils.Kml2_1_Tags;
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import org.gvsig.gpe.xml.stream.IXmlStreamReader;
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import org.gvsig.gpe.xml.stream.XmlStreamException;
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import org.gvsig.gpe.xml.utils.CompareUtils;
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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 *
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 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
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 *
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 * For more information, contact:
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 *
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 *  Generalitat Valenciana
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 *   Conselleria d'Infraestructures i Transport
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 *   Av. Blasco Ib??ez, 50
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 *   46010 VALENCIA
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 *   SPAIN
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 *
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 *      +34 963862235
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 *   gvsig@gva.es
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 *      www.gvsig.gva.es
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 *
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 *    or
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 *
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 *   IVER T.I. S.A
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 *   Salamanca 50
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 *   46005 Valencia
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 *   Spain
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 *
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 *   +34 963163400
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 *   dac@iver.es
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 */
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/* CVS MESSAGES:
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 *
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 * $Id:RegionBinding.java 357 2008-01-09 17:50:08Z jpiera $
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 * $Log$
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 * Revision 1.1  2007/05/11 07:06:29  jorpiell
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 * Refactoring of some package names
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 *
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 * Revision 1.1  2007/05/09 08:36:24  jorpiell
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 * Add the bbox to the layer
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 *
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 *
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 */
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/**
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 * This class parses a Region Kml tag. Example:
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 * <p>
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 * <pre>
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 * <code> 
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 * &lt;Region&gt;
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 * &lt;LatLonAltBox&gt;
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 * &lt;north&gt;43.374&lt;/north&gt;
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 * &lt;south&gt;42.983&lt;/south&gt;
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 * &lt;east&gt;-0.335&lt;/east&gt;
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 * &lt;west&gt;-1.423&lt;/west&gt;
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 * &lt;rotation&gt;39.37878630116985&lt;/rotation&gt;
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 * &lt;/LatLonAltBox&gt;
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 * &lt;/Region&gt;
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 * </code>
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 * </pre>
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 * </p> 
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 * @author Jorge Piera LLodr? (jorge.piera@iver.es)
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 * @see http://code.google.com/apis/kml/documentation/kml_tags_21.html#region
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 */
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public class RegionBinding {
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        /**
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         * It parses the Region tag
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         * @param parser
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         * The XML parser
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         * @param handler
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         * The GPE parser that contains the content handler and
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         * the error handler
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         * @return
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         * A Bounding box
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         * @throws IOException 
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         * @throws XmlStreamException 
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         */
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        public Object parse(IXmlStreamReader parser,GPEDeafultKmlParser handler) throws XmlStreamException, IOException {
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                boolean endFeature = false;
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                int currentTag;
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                Object bbox = null;
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                QName tag = parser.getName();
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                currentTag = parser.getEventType();
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                while (!endFeature){
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                        switch(currentTag){
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                        case IXmlStreamReader.START_ELEMENT:
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                                if (CompareUtils.compareWithNamespace(tag,Kml2_1_Tags.LATLONALTBOX)){
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                                        bbox =  handler.getProfile().getLatLonAltBoxBinding().parse(parser, handler);
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                                }
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                                break;
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                        case IXmlStreamReader.END_ELEMENT:
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                                if (CompareUtils.compareWithNamespace(tag,Kml2_1_Tags.REGION)){                                                
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                                        endFeature = true;                                        
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                                }
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                                break;
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                        case IXmlStreamReader.CHARACTERS:                                        
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                                break;
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                        }
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                        if (!endFeature){                                        
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                                currentTag = parser.next();
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                                tag = parser.getName();
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                        }
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                }                        
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                return bbox;        
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        }
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}
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