| 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: DefaultLabelingMethod.java 10815 2007-03-20 16:16:20Z jaume $

* $Log$

* Revision 1.1  2007-03-20 16:16:20  jaume

* refactored to use ISymbol instead of FSymbol

*

* Revision 1.2  2007/03/09 08:33:43  jaume

* *** empty log message ***

*

* Revision 1.1.2.2  2007/02/01 11:42:47  jaume

* *** empty log message ***

*

* Revision 1.1.2.1  2007/01/30 18:10:45  jaume

* start commiting labeling stuff

*

*

*/

package com.iver.cit.gvsig.fmap.rendering.styling.labeling;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator;

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

import com.iver.utiles.XMLEntity;

public class DefaultLabelingMethod implements ILabelingMethod {

        private LabelClass defaultLabel;

        public DefaultLabelingMethod() {}

        public DefaultLabelingMethod(LabelClass defaultLabel) {

                this();

                this.defaultLabel = defaultLabel;

        }

        public void addLabelClass(LabelClass lbl) {

                defaultLabel = lbl;

        }

        public void deleteLabelClass(LabelClass lbl) {

                // does nothing

        }

        public String getClassName() {

                return getClass().getName();

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

                xml.putProperty("className", getClassName());

                if (defaultLabel !=null) {

                        XMLEntity defaultLabelClassXML = defaultLabel.getXMLEntity();

                        defaultLabelClassXML.putProperty("id", "defaultLabelClass");

                        xml.addChild(defaultLabelClassXML);

                }

                return xml;

        }

        public void setXMLEntity(XMLEntity xml) {

                if (xml.findChildren("id", "defaultClass") !=null)

                        defaultLabel = LabelingFactory.

                                createLabelClassFromXML(xml.firstChild("id", "defaultLabelClass"));

        }

        public boolean allowsMultipleClass() {

                return false;

        }

        public void renameLabelClass(LabelClass lbl, String newName) {

                // does nothing

        }

        public IFeatureIterator getFeatureIteratorByLabelClass(FLyrVect layer, LabelClass lc, ViewPort viewPort, String[] usedFields)

        throws ReadDriverException {

//                if(lc.isUseSqlQuery()){

                String sqlFields = "";

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

                        sqlFields += usedFields[i];

                        if (i < usedFields.length -1) sqlFields += ", ";

                }

                String fieldNames[] = layer.getSource().getRecordset().getFieldNames();

                StringBuilder sql = new StringBuilder();

                sql.append("select ");

                for (int i=0; i<fieldNames.length-1; i++) {

                        sql.append(fieldNames[i]);

                        sql.append(",");

                }

                sql.append(fieldNames[fieldNames.length-1]);

                sql.append(" from ");

                sql.append(layer.getRecordset().getName());

                if(lc.isUseSqlQuery()){

                        sql.append(" where ");

                        sql.append(lc.getSQLQuery());

                }

                sql.append(";");

                return layer.getSource().getFeatureIterator(sql.toString(), viewPort.getProjection());

//                }

//                else {

//                        return layer.getSource().getFeatureIterator(

//                                        viewPort.getAdjustedExtent(), usedFields,

//                                        layer.getProjection(), true);

//                }

        }

        public boolean definesPriorities() {

                return false;

        }

        public void setDefinesPriorities(boolean flag) {

                /* nothing, since only one label class is suported */

        }

        public LabelClass getLabelClassByName(String labelName) {

                return defaultLabel;

        }

        public void clearAllClasses() {

                defaultLabel = null;

        }

        public LabelClass[] getLabelClasses() {

                return defaultLabel == null ? new LabelClass[0] : new LabelClass[] { defaultLabel };

        }

        public ILabelingMethod cloneMethod() {

                if (defaultLabel !=null)

                        return new DefaultLabelingMethod(LabelingFactory.createLabelClassFromXML(defaultLabel.getXMLEntity()));

                return new DefaultLabelingMethod();

        }

}