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svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / core / SymbologyFactory.java @ 37950

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/* gvSIG. Geographic Information System of the Valencian Government
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 *
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 * Copyright (C) 2007-2008 Infrastructures and Transports Department
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 * of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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 * MA  02110-1301, USA.
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 *
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 */
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/* CVS MESSAGES:
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*
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* $Id: SymbologyFactory.java 37950 2012-02-15 12:32:28Z fpenarrubia $
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* $Log$
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* Revision 1.11  2007-09-20 09:33:15  jaume
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* Refactored: fixed name of IPersistAnce to IPersistence
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*
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* Revision 1.10  2007/09/17 14:16:11  jaume
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* multilayer symbols sizing bug fixed
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*
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* Revision 1.9  2007/09/17 09:32:05  jaume
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* view refresh frame rate now configurable
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*
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* Revision 1.8  2007/07/18 06:54:34  jaume
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* continuing with cartographic support
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*
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* Revision 1.7  2007/04/26 11:41:00  jaume
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* attempting to let defining size in world units
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*
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* Revision 1.6  2007/03/27 09:28:40  jaume
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* *** empty log message ***
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*
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* Revision 1.5  2007/03/21 11:02:51  jaume
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* javadoc
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*
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* Revision 1.4  2007/03/20 15:59:03  jaume
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* improved factory toolkit
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*
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* Revision 1.3  2007/03/13 16:58:36  jaume
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* Added QuantityByCategory (Multivariable legend) and some bugfixes in symbols
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*
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* Revision 1.2  2007/03/09 11:20:57  jaume
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* Advanced symbology (start committing)
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*
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* Revision 1.1.2.2  2007/02/15 16:23:44  jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.1  2007/02/12 15:15:20  jaume
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* refactored interval legend and added graduated symbol legend
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*
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* Revision 1.1.2.3  2007/02/09 07:47:05  jaume
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* Isymbol moved
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*
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* Revision 1.1.2.2  2007/02/01 11:42:47  jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.1  2007/01/26 13:48:05  jaume
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* patch for opening old projects
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*
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* Revision 1.1  2007/01/10 16:39:41  jaume
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* ISymbol now belongs to com.iver.cit.gvsig.fmap.core.symbols package
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*
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* Revision 1.3  2006/11/06 16:06:52  jaume
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* *** empty log message ***
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*
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* Revision 1.2  2006/11/06 07:33:54  jaume
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* javadoc, source style
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*
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* Revision 1.1  2006/10/30 19:30:35  jaume
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* *** empty log message ***
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*
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*
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*/
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package com.iver.cit.gvsig.fmap.core;
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import java.awt.BasicStroke;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.Rectangle;
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import java.awt.Stroke;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Ellipse2D;
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import javax.print.attribute.PrintRequestAttributeSet;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import org.apache.log4j.Logger;
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import com.iver.cit.gvsig.fmap.Messages;
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import com.iver.cit.gvsig.fmap.core.styles.IStyle;
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import com.iver.cit.gvsig.fmap.core.styles.SimpleLineStyle;
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import com.iver.cit.gvsig.fmap.core.symbols.AbstractSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.IFillSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.ILineSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.IMarkerSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.IMultiLayerSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.ISymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.ITextSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.MultiLayerFillSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.MultiLayerLineSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.MultiLayerMarkerSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.MultiShapeSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.SimpleFillSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.SimpleLineSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.SimpleMarkerSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.SimpleTextSymbol;
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import com.iver.cit.gvsig.fmap.core.symbols.SymbolDrawingException;
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import com.iver.cit.gvsig.fmap.core.v02.FConstant;
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import com.iver.cit.gvsig.fmap.core.v02.FSymbol;
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import com.iver.utiles.FileUtils;
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import com.iver.utiles.IPersistence;
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import com.iver.utiles.NotExistInXMLEntity;
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import com.iver.utiles.XMLEntity;
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import com.iver.utiles.swing.threads.Cancellable;
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/**
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 * Factory for obtaining symbology of any kind from several sources like.
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 * <ol>
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 *         <li>
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 *                 <b>XMLEntity's</b> that, at least, contains a full class name
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 *                         string property that defines which class handles such symbol.
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 *  </li>
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 * </ol>
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 *
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 * @author jaume dominguez faus - jaume.dominguez@iver.es
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 */
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public class SymbologyFactory {
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        /**
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         * This Constants are only used in SymbologyPage (preferences page for symbology),
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         * do not use in other context.
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         */
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        public static final Color FactoryDefaultSymbolColor = Color.GRAY;
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        public static final Color FactoryDefaultFillSymbolColor = new Color(60, 235, 235);
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        public static final Font FactoryDefaultTextFont =  new Font("Serif", Font.PLAIN, 8);
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        public static final String FactorySymbolLibraryPath = FileUtils.getAppHomeDir() + "Symbols";
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        public static final String FactoryStyleLibraryPath = FileUtils.getAppHomeDir() + "Styles";
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        public static final Boolean FactoryDefaultAleatoryFillColor = false;
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        public static Color DefaultSymbolColor = FactoryDefaultSymbolColor;
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        public static Color DefaultFillSymbolColor = FactoryDefaultFillSymbolColor;
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        public static Font DefaultTextFont = FactoryDefaultTextFont;
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        public static String SymbolLibraryPath = FactorySymbolLibraryPath;
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        public static String StyleLibraryPath = FactoryStyleLibraryPath;
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        public static Boolean DefaultAleatoryFillColor = FactoryDefaultAleatoryFillColor;
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        private static Logger logger = Logger.getLogger(SymbologyFactory.class.getName());
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        private static WarningSymbol warningSymbol;
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        /**
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         * Factory that allows to create <b>ISymbol</b>'s from an ISymbol xml
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         * descriptor. A barely specific XMLEntity object. The string passed in the
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         * second argument is the description text that will be used in case no description
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         * is supplied by the symbol's xml descriptor.
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         *
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         * @param xml, the symbol's xml descriptor
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         * @param defaultDescription, a human readable description string for the symbol.
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         * @return ISymbol
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         */
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        public static ISymbol createSymbolFromXML(XMLEntity xml, String defaultDescription) {
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                if (!xml.contains("desc")) {
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                        if (defaultDescription == null) defaultDescription = "";
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                        xml.putProperty("desc", defaultDescription);
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                }
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                return (ISymbol) createFromXML(xml);
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        }
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        /**
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         * Factory that allows to create <b>IStyle</b>'s from an <b>IStyle</b> xml descriptor. A barely
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         * specific <b>XMLEntity</b> object. The string passed in the second argument is the
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         * description text that will be used in case no description is supplied by the
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         * style's xml descriptor.
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         *
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         * @param xml, the style's xml descriptor
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         * @param defaultDescription, a human readable description string for the style
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         * @return IStyle
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         */
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        public static IStyle createStyleFromXML(XMLEntity xml, String defaultDescription) {
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                if (!xml.contains("desc")) {
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                        if (defaultDescription == null)
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                                defaultDescription = "";
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                        xml.putProperty("desc", defaultDescription);
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                }
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                return (IStyle) createFromXML(xml);
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        }
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        /**
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         * Creates an <b>Object</b> described by the <b>XMLEntity</b> xml, please reffer to the
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         * XMLEntity definition contract to know what is the format of the xml argument.
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         * The result of this method is an <b>Object</b> that you can cast to the type you were
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         * looking for by means of the xml entity.
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         *
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         * @param xml
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         * @return Object
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         */
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        private static Object createFromXML(XMLEntity xml) {
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                String className = null;
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                try {
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                        className = xml.getStringProperty("className");
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                } catch (NotExistInXMLEntity e) {
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                        logger.error("Class name not set.\n" +
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                                                " Maybe you forgot to add the" +
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                                                " putProperty(\"className\", yourClassName)" +
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                                                " call in the getXMLEntity method of your class", e);
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                }
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                Class clazz = null;
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                IPersistence obj = null;
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                String s = className;
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                try {
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                        clazz = Class.forName(className);
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                        if (xml.contains("desc")) {
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                                s += " \"" + xml.getStringProperty("desc") +"\"";
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                        }
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                        // TODO: Modify the patch the day we deprecate FSymbol
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                        // begin patch
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                        if (clazz.equals(FSymbol.class)){
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                                obj = deriveFSymbol(FSymbol.createFromXML(xml));
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                        } else {
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                        // end patch
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                                obj = (IPersistence) clazz.newInstance();
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//                                logger.info(Messages.getString("creating")+"....... "+s);
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                                try {
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                                        obj.setXMLEntity(xml);
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                                } catch (NotExistInXMLEntity neiXML) {
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                                        logger.error(Messages.getString("failed_creating_object")+": "+s);
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                                        throw neiXML;
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                                }
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                        }
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                } catch (InstantiationException e) {
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                        logger.error("Trying to instantiate an interface" +
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                                                " or abstract class + "+className, e);
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                } catch (IllegalAccessException e) {
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                        logger.error("IllegalAccessException: does your class have an" +
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                                        " anonymous constructor?", e);
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                } catch (ClassNotFoundException e) {
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                        logger.error("No class called " + className +
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                                        " was found.\nCheck the following.\n<br>" +
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                                        "\t- The fullname of the class you're looking " +
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                                                "for matches the value in the className " +
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                                                "property of the XMLEntity ("+className+").\n<br>" +
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                                        "\t- The jar file containing your symbol class is in" +
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                                                "the application classpath<br>", e);
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                }
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                return obj;
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        }
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        private static ISymbol deriveFSymbol(FSymbol fSymbol) {
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                ISymbol derivedSymbol;
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                int symbolType = fSymbol.getSymbolType();
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                Color color = fSymbol.getColor();
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                double size = fSymbol.getSize();
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                if (symbolType == FShape.LINE) {
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                        ILineSymbol line = SymbologyFactory.createDefaultLineSymbol();
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                        line.setLineColor(color);
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                        SimpleLineStyle lineStyle = new SimpleLineStyle();
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                        lineStyle.setUnit(-1);//En FSymbol solo estaban contemplados metros en los simbolos puntuales
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                        lineStyle.setOffset(0);
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                        lineStyle.setReferenceSystem(CartographicSupport.PAPER);
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                        Stroke stroke = fSymbol.getStroke();
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                        BasicStroke bStroke = null;
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                        if(stroke instanceof BasicStroke){
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                                bStroke = (BasicStroke) stroke;
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                        }
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                        if(bStroke != null){
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                                lineStyle.setStroke(bStroke);
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                                lineStyle.setLineWidth(bStroke.getLineWidth());
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                        } else {
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                                lineStyle.setLineWidth((float) size);
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                        }
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                        line.setLineStyle(lineStyle);
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                        derivedSymbol = line;
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                } else if (symbolType == FShape.POINT) {
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                        int unit = fSymbol.isSizeInPixels() ? -1 : 1; // only meters or pixels
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                        // were supported in
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                        // FSymbol
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                        int style = fSymbol.getStyle();
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                        IMarkerSymbol marker = new SimpleMarkerSymbol();
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                        SimpleMarkerSymbol sms = (SimpleMarkerSymbol) marker;
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                        if (style == FConstant.SYMBOL_STYLE_MARKER_CIRCLE) {
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                                sms.setStyle(SimpleMarkerSymbol.CIRCLE_STYLE);
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                        } else if (style == FConstant.SYMBOL_STYLE_MARKER_CROSS) {
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                                sms.setStyle(SimpleMarkerSymbol.CROSS_STYLE);
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                        } else if (style == FConstant.SYMBOL_STYLE_MARKER_SQUARE) {
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                                sms.setStyle(SimpleMarkerSymbol.SQUARE_STYLE);
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                        } else if (style == FConstant.SYMBOL_STYLE_MARKER_TRIANGLE) {
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                                sms.setStyle(SimpleMarkerSymbol.TRIANGLE_STYLE);
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                        } else if (style == FConstant.SYMBOL_STYLE_MARKER_IMAGEN) {
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                                //Como no tenemos en el core ningun simbolo de imagen devolvemos uno circular por defecto
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                                sms.setStyle(SimpleMarkerSymbol.CIRCLE_STYLE);
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                        }
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                        Color outlineColor = fSymbol.getOutlineColor();
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                        if (outlineColor != null) {
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                                sms.setOutlined(true);
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                                sms.setOutlineColor(outlineColor);
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                        }
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                        marker.setColor(color);
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                        marker.setSize(size);
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                        marker.setUnit(unit);
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                        marker.setRotation(fSymbol.getRotation());
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                        derivedSymbol = marker;
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                } else if (symbolType == FShape.POLYGON) {
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                        IFillSymbol fill;
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                        int fSymbolStyle = fSymbol.getStyle();
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                        fill = SymbologyFactory.createDefaultFillSymbol();
341
                        if (fSymbolStyle == FConstant.SYMBOL_STYLE_FILL_TRANSPARENT ||
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                                        fSymbolStyle == FConstant.SYMBOL_STYLE_DGNSPECIAL) {
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                                color = null;
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                        }
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                        // De momento no tenemos tipos simbolos apropiados en el core de fmap para estos.
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                        fill.setUnit(-1);//En FSymbol solo estaban contemplados metros en los simbolos puntuales
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                        fill.setFillColor(color);
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350
                        if (fSymbol.isOutlined()) {
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                                // Let's create the outline line symbol
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                                fSymbol.setSymbolType(FShape.LINE);
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                                ILineSymbol outline = (ILineSymbol) deriveFSymbol(fSymbol);
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                                // restore the old value for symbol type (should be always
356
                                // FShape.POLYGON)
357
                                assert symbolType == FShape.POLYGON;
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                                fSymbol.setSymbolType(symbolType);
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                                outline.setLineColor(fSymbol.getOutlineColor());
360
                                fill.setOutline(outline);
361
                        }
362
                        derivedSymbol = fill;
363
                } else if (symbolType == FShape.MULTI) {
364
                        fSymbol.setSymbolType(FShape.LINE);
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                        ILineSymbol line = (ILineSymbol) deriveFSymbol(fSymbol);
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                        fSymbol.setSymbolType(FShape.POINT);
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                        IMarkerSymbol marker = (IMarkerSymbol) deriveFSymbol(fSymbol);
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                        fSymbol.setSymbolType(FShape.POLYGON);
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                        IFillSymbol fill = (IFillSymbol) deriveFSymbol(fSymbol);
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                        assert symbolType == FShape.MULTI;
371
                        fSymbol.setSymbolType(symbolType);
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                        MultiShapeSymbol multiShapeSymbol = new MultiShapeSymbol();
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                        multiShapeSymbol.setMarkerSymbol(marker);
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                        multiShapeSymbol.setLineSymbol(line);
375
                        multiShapeSymbol.setFillSymbol(fill);
376

    
377
                        derivedSymbol = multiShapeSymbol;
378
                } else if (symbolType == FShape.TEXT || symbolType == FConstant.SYMBOL_TYPE_TEXT) {
379
                        ITextSymbol textSym = SymbologyFactory.createDefaultTextSymbol();
380
                        textSym.setTextColor(color);
381
                        derivedSymbol = textSym;
382
                } else {
383
                        throw new Error("FSymbol of type "+symbolType+" cannot be imported yet!");
384
                }
385

    
386
                // establish the general description;
387
                if (derivedSymbol instanceof AbstractSymbol) {
388
                        AbstractSymbol symbol = (AbstractSymbol) derivedSymbol;
389
                        symbol.setIsShapeVisible(fSymbol.isShapeVisible());
390
                        symbol.setDescription(fSymbol.getDescription());
391
                }
392

    
393
                if (derivedSymbol instanceof MultiShapeSymbol ) {
394
                        MultiShapeSymbol symbol = (MultiShapeSymbol) derivedSymbol;
395
                        symbol.setDescription(fSymbol.getDescription());
396
                }
397

    
398
                return derivedSymbol;
399
        }
400

    
401
        /**
402
         * Returns a new empty instance of a <b>IMultiLayer</b> that can be one of:
403
         * <b>MultiLayerMarkerSymbol</b>, <b>MultiLayerLineSymbol</b>, or
404
         * <b>MultiLayerFillSymbol</b> depending on the shape type passed.
405
         *
406
         * @param shapeType, one of FShape.POINT, FShape.LINE, or FShape.POLYGON
407
         * @return IMultiLayerSymbol
408
         */
409
        public static IMultiLayerSymbol createEmptyMultiLayerSymbol(int shapeType) {
410
                IMultiLayerSymbol mSym;
411
                switch (shapeType%FShape.Z) {
412
                case FShape.POINT:
413
                        mSym = new MultiLayerMarkerSymbol();
414
                        break;
415
                case FShape.LINE:
416
                        mSym = new MultiLayerLineSymbol();
417
                        break;
418
                case FShape.POLYGON:
419
                        mSym =new MultiLayerFillSymbol();
420
                        break;
421
                default:
422
                        throw new Error("Shape type not yet supported for multilayer symbols");
423
                }
424

    
425
                if (mSym instanceof CartographicSupport) {
426
                        CartographicSupport cs = (CartographicSupport) mSym;
427
                        cs.setUnit(CartographicSupportToolkit.DefaultMeasureUnit);
428
                        cs.setReferenceSystem(CartographicSupportToolkit.DefaultReferenceSystem);
429
                }
430
                return mSym;
431
        }
432

    
433
        /**
434
         * Returns a new instance of an <b>IMarkerSymbol</b>.
435
         * @return IMarkerSymbol, the default symbol for markers
436
         */
437
        public static IMarkerSymbol createDefaultMarkerSymbol() {
438
                SimpleMarkerSymbol sms = new SimpleMarkerSymbol();
439
                sms.setColor(DefaultSymbolColor);
440
                sms.setSize(4);
441
                toDefaultCartographicProperties(sms);
442
                return sms;
443
        }
444

    
445
        /**
446
         * Returns a new instance of an <b>ILineSymbol</b>. A black line.
447
         * @return ILineSymbol, the default symbol for lines.
448
         */
449
        public static ILineSymbol createDefaultLineSymbol() {
450
                SimpleLineSymbol sls = new SimpleLineSymbol();
451
                sls.setLineColor(DefaultSymbolColor);
452
                sls.setLineWidth(1);
453
                toDefaultCartographicProperties(sls);
454
                return sls;
455
        }
456

    
457
        private static void toDefaultCartographicProperties(CartographicSupport cs) {
458
                cs.setUnit(CartographicSupportToolkit.DefaultMeasureUnit);
459
                cs.setReferenceSystem(CartographicSupportToolkit.DefaultReferenceSystem);
460
        }
461

    
462
        /**
463
         * Returns a new instance of an <b>IFillSymbol</b>. Black outline,
464
         * and transparent fill.
465
         * @return IFillSymbol, the default symbol for polygons
466
         */
467
        public static IFillSymbol createDefaultFillSymbol() {
468

    
469
                SimpleFillSymbol sfs = new SimpleFillSymbol();
470

    
471
                // Default symbol for polygons
472
                sfs.setOutline(createDefaultLineSymbol());
473
                sfs.setFillColor(DefaultFillSymbolColor); // transparent fill
474
                toDefaultCartographicProperties(sfs);
475
                return sfs;
476
    }
477

    
478
        /**
479
         * Returns a new instance of an <b>ITextSymbol</b>.
480
         * @return ITextSymbol, the default symbol for texts
481
         */
482
        public static ITextSymbol createDefaultTextSymbol() {
483
                SimpleTextSymbol sts = new SimpleTextSymbol();
484

    
485
                sts.setFont(DefaultTextFont);
486
                sts.setTextColor(DefaultSymbolColor);
487
                toDefaultCartographicProperties(sts);
488

    
489
                return sts;
490
        }
491

    
492
        /**
493
         * Creates a new instance of the default symbol whose type is defined
494
         * by the parameter <b>shapeType</b>
495
         * @param shapeType, one of FShape.POINT, FShape.LINE, FShape.POLYGON,
496
         * FShape.MULTIPOINT, FShape.TEXT, or FShape.MULTI.
497
         * @return ISymbol, the default symbol for the shape type defined by <b>shapeType</b>
498
         */
499
        public static ISymbol createDefaultSymbolByShapeType(int shapeType) {
500
                if ((shapeType & FShape.POINT)!= 0){
501
                        return createDefaultMarkerSymbol();
502
                } else if ((shapeType & FShape.LINE) != 0){
503
                        return createDefaultLineSymbol();
504
                } else if ((shapeType & FShape.POLYGON) != 0){
505
                        return createDefaultFillSymbol();
506
                } else if ((shapeType & FShape.MULTIPOINT) != 0){
507
                        return createDefaultMarkerSymbol();
508
                } else if ((shapeType & FShape.TEXT) != 0){
509
                        return createDefaultTextSymbol();
510
                } else if ((shapeType & FShape.MULTI) != 0){
511
                        return new MultiShapeSymbol();
512
                } else if (shapeType == FShape.NULL){
513
                        return null;
514
                }
515
                throw new Error("shape type not yet supported");
516
        }
517

    
518
        /**
519
         * Creates a new instance of the default symbol whose type is defined
520
         * by the parameter <b>shapeType</b> and uses the color defined by the
521
         * parameter color.
522
         * @param shapeType, one of FShape.POINT, FShape.LINE, FShape.POLYGON,
523
         * @param color, the color to be applied to the new ISymbol.
524
         *
525
         * FShape.MULTIPOINT, FShape.TEXT, or FShape.MULTI.
526
         * @return ISymbol, the default symbol for the shape type defined by <b>shapeType</b>
527
         */
528
        public static ISymbol createDefaultSymbolByShapeType(int shapeType, Color color) {
529
                ISymbol sym = createDefaultSymbolByShapeType(shapeType);
530

    
531
                if (sym instanceof IMarkerSymbol) {
532
                        ((IMarkerSymbol) sym).setColor(color);
533
                }
534

    
535
                if (sym instanceof ILineSymbol) {
536
                        ((ILineSymbol) sym).setLineColor(color);
537
                }
538

    
539
                if (sym instanceof IFillSymbol) {
540
                        ((IFillSymbol) sym).setFillColor(color);
541
                }
542

    
543
                if (sym instanceof ITextSymbol) {
544
                        ((ITextSymbol) sym).setTextColor(color);
545
                }
546

    
547
                return sym;
548
        }
549

    
550

    
551
        public static ISymbol getWarningSymbol(String message, String symbolDesc, int symbolDrawExceptionType) {
552
                if (warningSymbol == null) {
553
                        warningSymbol = new WarningSymbol();
554
                }
555
                warningSymbol.setDescription(symbolDesc);
556
                warningSymbol.setMessage(message);
557
                warningSymbol.setDrawExceptionType(symbolDrawExceptionType);
558
                return warningSymbol;
559
        }
560

    
561
        private static class WarningSymbol extends MultiShapeSymbol {
562
                private String desc;
563
                private String message;
564
                private int exceptionType;
565
                private SimpleTextSymbol text;
566

    
567
                public static void main(String[] args) {
568
                        JFrame f = new JFrame();
569
                        final ISymbol warning = SymbologyFactory.getWarningSymbol(SymbolDrawingException.STR_UNSUPPORTED_SET_OF_SETTINGS, "a description", SymbolDrawingException.UNSUPPORTED_SET_OF_SETTINGS);
570
                        JPanel preview = new JPanel() {
571
                                @Override
572
                                protected void paintComponent(Graphics g) {
573
                                        // TODO Auto-generated method stub
574
                                        super.paintComponent(g);
575
                                        Graphics2D g2 = (Graphics2D)g;
576
                                        try {
577
                                                warning.drawInsideRectangle(g2, g2.getTransform(), getBounds(), null);
578
                                        } catch (SymbolDrawingException e) {
579
                                                // TODO Auto-generated catch block
580
                                                e.printStackTrace();
581
                                        }
582
                                }
583
                        };
584
                        f.setContentPane(preview);
585
                        f.pack();
586
                        f.setVisible(true);
587
                }
588

    
589
                public void draw(Graphics2D g, AffineTransform affineTransform,
590
                                FShape shp, Cancellable cancel) {
591
                        try {
592
                                drawInsideRectangle(g, g.getTransform(), shp.getBounds(), null);
593
                        } catch (SymbolDrawingException e) {
594
                                // IMPOSSIBLE
595
                        }
596
                }
597

    
598
                public void setDrawExceptionType(int symbolDrawExceptionType) {
599
                        this.exceptionType = symbolDrawExceptionType;
600
                }
601

    
602
                public void setMessage(String message) {
603
                        this.message = message;
604
                }
605

    
606
                public void drawInsideRectangle(Graphics2D g,
607
                                AffineTransform scaleInstance, Rectangle r, PrintRequestAttributeSet properties)
608
                                throws SymbolDrawingException {
609
                        g.setClip(r);
610
                        if (message == null) {
611
                                message = "Symbol undrawable.\nPlease, check errors.";
612
                        }
613

    
614

    
615
                        String[] messageLines = message.split("\n");
616
                        int strokeWidth = (int) (Math.min(r.width, r.height)*.1);
617

    
618
                        if (strokeWidth == 0) strokeWidth = 1;
619

    
620
                        g.setColor(Color.red);
621
                        g.setStroke(new BasicStroke(strokeWidth, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
622
                        int x = r.x+strokeWidth;
623
                        int y = r.x+strokeWidth;
624
                        int width = r.width-(strokeWidth+strokeWidth);
625
                        int height = r.height-(strokeWidth+strokeWidth);
626

    
627
                        double radius = Math.min(width, height)*.5;
628
                        double centerX = r.getCenterX();
629
                        double centerY = r.getCenterY();
630
                        Ellipse2D circle = new Ellipse2D.Double(centerX - radius, centerY - radius, 2*radius, 2*radius);
631
                        g.draw(circle);
632
                        g.setClip(circle);
633
                        double aux = Math.cos(Math.PI*0.25)*radius;
634
                        g.drawLine((int) (centerX - aux), (int) (centerY - aux), (int) (centerX + aux), (int) (centerY + aux));
635
                        int fontSize = 20;
636
                        g.setFont(new Font("Arial", fontSize, Font.PLAIN));
637
                        g.setColor(Color.black);
638
                        g.setClip(null);
639

    
640
                        if (text == null) {
641
                                text = new SimpleTextSymbol();
642
                                text.setAutoresizeEnabled(true);
643

    
644
                        }
645

    
646
                        double lineHeight = (r.getHeight()-6)/messageLines.length;
647
                        Rectangle textRect = new Rectangle(
648
                                        (int) r.getMinX(),
649
                                        (int) r.getMinY()+6,
650
                                        (int) r.getWidth(),
651
                                        (int) lineHeight);
652
                        for (int i =0; i < messageLines.length; i++) {
653
                                text.setText(messageLines[i]);
654
                                text.drawInsideRectangle(g, null, textRect, properties);
655
                                textRect.setLocation((int) r.getX(), (int) (r.getY()+r.getHeight()));
656
                        }
657
                }
658

    
659
                @Override
660
                public XMLEntity getXMLEntity() {
661
                        XMLEntity xml = new XMLEntity();
662
                        xml.putProperty("className", getClass().getName());
663
                        xml.putProperty("desc", desc);
664
                        xml.putProperty("exceptionType", exceptionType);
665
                        xml.putProperty("message", message);
666
                        return xml;
667
                }
668

    
669
                @Override
670
                public void setXMLEntity(XMLEntity xml) {
671
                        setDescription(xml.getStringProperty("desc"));
672
                        exceptionType = xml.getIntProperty("exceptionType");
673
                        message = xml.getStringProperty("message");
674
                }
675

    
676
        }
677

    
678

    
679
}