svn-gvsig-desktop / branches / v02_desarrollo / libraries / sld / org.gvsig.sldsupport / org.gvsig.sldsupport.lib / org.gvsig.sldsupport.lib.api / src / main / java / org / gvsig / sldsupport / version / sld1_0_0 / symbolizers / SLDPointSymbolizer1_0_0.java @ 40754
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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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package org.gvsig.sldsupport.version.sld1_0_0.symbolizers; |
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import java.io.IOException; |
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import org.gvsig.sldsupport.exception.SLDReadException; |
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import org.gvsig.sldsupport.symbolizer.SLDPointSymbolizer; |
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import org.gvsig.sldsupport.util.SLDTags; |
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import org.gvsig.sldsupport.util.XmlBuilder; |
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import org.gvsig.sldsupport.version.sld1_0_0.SLDGraphic1_0_0; |
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import org.xmlpull.v1.XmlPullParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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/**
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* * Implements the Point Symbolizer element of an SLD implementation specification (version
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* 1.0.0).<p>
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*
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* A point symbolizer is used to draw "graphic" at a point.
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*
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* @see SLDGraphic1_0_0
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* @see http://portal.opengeospatial.org/files/?artifact_id=1188
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*
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* @author pepe vidal salvador - jose.vidal.salvador@iver.es
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*/
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public class SLDPointSymbolizer1_0_0 extends SLDPointSymbolizer { |
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/**
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* Parses the xml data retrieved from the SLD, it will parse the Point Symbolizer
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* element</p>
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* @throws SLDReadException
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*/
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public void parse(XmlPullParser parser)throws IOException, XmlPullParserException, SLDReadException { |
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int currentTag;
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boolean end = false; |
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parser.require(XmlPullParser.START_TAG, null, SLDTags.POINTSYMBOLIZER);
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currentTag = parser.next(); |
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while (!end)
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{ |
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switch(currentTag)
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{ |
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case XmlPullParser.START_TAG:
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if (parser.getName().compareTo(SLDTags.GEOMETRY)==0) { |
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parseGeometry(parser); |
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} |
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else if (parser.getName().compareTo(SLDTags.GRAPHIC)==0) { |
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SLDGraphic1_0_0 graphic = new SLDGraphic1_0_0();
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graphic.parseGraphic(parser,parser.getName()); |
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setGraphic(graphic); |
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} |
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break;
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case XmlPullParser.END_TAG:
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if (parser.getName().compareTo(SLDTags.POINTSYMBOLIZER) == 0) |
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end = true;
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break;
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case XmlPullParser.TEXT:
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break;
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} |
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if (!end)
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currentTag = parser.next(); |
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} |
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parser.require(XmlPullParser.END_TAG, null, SLDTags.POINTSYMBOLIZER);
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} |
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/**
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* Parse the xml data retrieved from the SLD, it will parse the Geometry element</p>
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* The Geometry element of a Symbolizer defines the geometry to be used
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* for styling. The Geometry element is optional and if it is absent then the
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* �default� geometry property of the feature type that is used in the containing
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* FeatureStyleType is used. The precise meaning of �default� geometry property is
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* system-dependent. Most frequently, feature types will have only a single geometry
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* property.<p>
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* The only method available for defining a geometry is to reference a geometry
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* property using the ogc:PropertyName element (defined in the WFS Specification).
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* The content of the element gives the property name in XPath syntax. In principle,
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* a fixed geometry could be defined using GML or operators could be defined for
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* computing the geometry from references or literals. However, using a feature
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* property directly is by far the most commonly useful method.
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*
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*/
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private void parseGeometry(XmlPullParser parser) throws IOException, XmlPullParserException{ |
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int currentTag;
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boolean end = false; |
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parser.require(XmlPullParser.START_TAG, null, SLDTags.GEOMETRY);
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currentTag = parser.next(); |
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while (!end)
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{ |
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switch(currentTag)
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{ |
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case XmlPullParser.START_TAG:
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if (parser.getName().compareTo(SLDTags.PROPERTY_NAME)==0) { |
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setGeometry(parser.nextText()); |
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} |
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break;
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case XmlPullParser.END_TAG:
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if (parser.getName().compareTo(SLDTags.GEOMETRY) == 0) |
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end = true;
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break;
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case XmlPullParser.TEXT:
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break;
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} |
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if (!end)
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currentTag = parser.next(); |
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} |
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parser.require(XmlPullParser.END_TAG, null, SLDTags.GEOMETRY);
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} |
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public String toXML() { |
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XmlBuilder xmlBuilder = new XmlBuilder();
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xmlBuilder.openTag(SLDTags.POINTSYMBOLIZER); |
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xmlBuilder.writeRaw(getGraphic().toXML()); |
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xmlBuilder.closeTag(); |
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return xmlBuilder.getXML();
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} |
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} |