| gvSIG desktop 1

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

 *

 * Copyright (C) 2005 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

 */

/* CVS MESSAGES:

*

* $Id: SymbolSelectorListModel.java 29596 2009-06-29 16:02:00Z jpiera $

* $Log$

* Revision 1.11  2007-09-19 15:36:36  jaume

* removed unnecessary imports

*

* Revision 1.10  2007/09/17 15:27:21  jaume

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*

* Revision 1.9  2007/08/07 11:22:06  jvidal

* javadoc

*

* Revision 1.8  2007/05/08 15:44:07  jaume

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*

* Revision 1.7  2007/04/04 16:01:14  jaume

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*

* Revision 1.6  2007/04/02 00:08:05  jaume

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*

* Revision 1.2  2007/03/28 16:44:08  jaume

* *** empty log message ***

*

* Revision 1.1  2007/03/09 11:25:00  jaume

* Advanced symbology (start committing)

*

* Revision 1.4.2.4  2007/02/21 07:35:14  jaume

* *** empty log message ***

*

* Revision 1.4.2.3  2007/02/09 11:00:03  jaume

* *** empty log message ***

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* Revision 1.4.2.2  2007/02/08 15:43:05  jaume

* some bug fixes in the editor and removed unnecessary imports

*

* Revision 1.4.2.1  2007/01/26 13:49:03  jaume

* *** empty log message ***

*

* Revision 1.4  2007/01/16 11:52:11  jaume

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* Revision 1.7  2007/01/10 17:05:05  jaume

* moved to FMap and gvSIG

*

* Revision 1.6  2006/11/06 16:06:52  jaume

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* Revision 1.5  2006/11/06 07:33:54  jaume

* javadoc, source style

*

* Revision 1.4  2006/11/02 17:19:28  jaume

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* Revision 1.3  2006/10/30 19:30:35  jaume

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*

* Revision 1.2  2006/10/26 16:31:21  jaume

* GUI

*

* Revision 1.1  2006/10/25 10:50:41  jaume

* movement of classes and gui stuff

*

* Revision 1.2  2006/10/24 22:26:18  jaume

* *** empty log message ***

*

* Revision 1.1  2006/10/24 16:31:12  jaume

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*

*

*/

package org.gvsig.app.gui.styling;

import java.io.File;

import java.io.FileFilter;

import java.io.FileNotFoundException;

import java.util.ArrayList;

import java.util.Comparator;

import java.util.TreeSet;

import java.util.Vector;

import javax.swing.event.ListDataListener;

import org.exolab.castor.xml.MarshalException;

import org.exolab.castor.xml.ValidationException;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.fmap.mapcontext.rendering.symbols.SymbologyFactory;

import org.gvsig.utils.XMLEntity;

import org.gvsig.utils.listManager.ListModel;

import org.gvsig.utils.xml.XMLEncodingUtils;

import org.gvsig.utils.xmlEntity.generate.XmlTag;

/**

 * Class SymbolSelectorListModel implements a list to select symbols.This list

 * has the property that allows the user to stablish a filter to accept or reject

 * elements for it from a directory which is also specified when teh SymbolSelectorModel

 * is created.

 *

 * @author jaume dominguez faus - jaume.dominguez@iver.es

 *

 */

public class SymbolSelectorListModel implements ListModel {

        private String fileExtension;

        protected FileFilter ffilter = new FileFilter() {

                public boolean accept(File pathname) {

                        return pathname.getAbsolutePath().toLowerCase().endsWith(SymbolSelectorListModel.this.fileExtension);

                }

        };

        protected SelectorFilter sfilter;

        protected Vector elements;

        private ArrayList listeners;

//        protected Object currentElement;

        protected File dir;

        /**

         * <p>

         * Creates a new instance of the model for the list in the Symbol Selector window

         * where the symbols are stored in the <b>dir</b> (root directory) param.<br>

         * </p>

         * <p>The <b>currentElement</b> defines which element is pre-selected.<br></p>

         * <p>The <b>filter</b> is a user defined filter used to know which elements in

         * the folder are accepted or rejected for this list and it is used to avoid

         * mixing marker symbols for polygons for example.<br></p>

         * <p><b>fileExtension</b> param defines the extension of the file to be parsed. This

         * is like that to enable inheritance of this class to other file selector such

         * as StyleSelector.

         *

         * @param dir, the root dir where symbols are located.

         * @param currentElemet, the element to be pre-selected.

         * @param filter, the filter used to show or hide some elements.

         * @param fileExtension, file extension used for the files to be parsed.

         */

        public SymbolSelectorListModel(File dir, SelectorFilter filter, String fileExtension) {

                this.fileExtension = fileExtension;

                this.dir = dir;

                this.sfilter = filter;

        }

        public Object remove(int i) throws ArrayIndexOutOfBoundsException {

                return elements.remove(i);

        }

        public void insertAt(int i, Object o) {

                getObjects().insertElementAt(o, i);

        }

        public void add(Object o) {

                TreeSet map = new TreeSet(new Comparator() {

                        public int compare(Object o1, Object o2) {

                                // first will always be the current symbol

                                ISymbol sym1 = (ISymbol) o1;

                                ISymbol sym2 = (ISymbol) o2;

                                if (sym1.getDescription() == null && sym2.getDescription() != null) return -1;

                                if (sym1.getDescription() != null && sym2.getDescription() == null) return 1;

                                if (sym1.getDescription() == null && sym2.getDescription() == null) return 1;

                                int result = sym1.getDescription().compareTo(sym2.getDescription());

                                return (result!=0) ? result: 1; /* this will allow adding symbols with

                                                                                                   the same value for description than

                                                                                                   a previous one. */

                        }

                });

                map.addAll(elements);

                map.add(o);

                elements = new Vector(map);

        }

        public Vector getObjects() {

                if (elements == null) {

                        elements = new Vector();

                        File[] ff = dir.listFiles(ffilter);

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

                                XMLEntity xml;

                                try {

                                        xml = new XMLEntity((XmlTag) XmlTag.unmarshal(XMLEncodingUtils.getReader(ff[i])));

                                        ISymbol sym = SymbologyFactory.createSymbolFromXML(xml, ff[i].getName());

                                        if (sfilter.accepts(sym))

                                                add(sym);

                                } catch (MarshalException e) {

                                        NotificationManager.

                                                addWarning("Error in file ["+ff[i].getAbsolutePath()+"]. " +

                                                                "File corrupted! Skiping it...", e);

                                } catch (ValidationException e) {

                                        NotificationManager.

                                                addWarning("Error validating symbol file ["+ff[i].getAbsolutePath()+"].", e);

                                } catch (FileNotFoundException e) {

                                        // unreachable code, but anyway...

                                        NotificationManager.

                                                addWarning("File not found: "+ ff[i].getAbsolutePath(), e);

                                }

                        }

                }

                return elements;

        }

        public int getSize() {

                return getObjects().size();

        }

        public Object getElementAt(int index) {

                return getObjects().get(index);

        }

        public void addListDataListener(ListDataListener l) {

                if (listeners == null)

                        listeners = new ArrayList();

                listeners.add(l);

        }

        public void removeListDataListener(ListDataListener l) {

                if (listeners!=null)

                        listeners.remove(l);

        }

}