| gvSIG desktop 1

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

*

* Copyright (C) 2004 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

*/

package com.iver.cit.gvsig.fmap.operations.strategies;

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

import java.sql.SQLException;

import org.cresques.cts.ICoordTrans;

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

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

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.v02.FSymbol;

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

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

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

import com.iver.cit.gvsig.fmap.drivers.wfs.WFSDriver;

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

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

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

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

import com.iver.cit.gvsig.fmap.layers.layerOperations.ClassifiableVectorial;

import com.iver.cit.gvsig.fmap.layers.layerOperations.Selectable;

import com.iver.cit.gvsig.fmap.layers.layerOperations.SingleLayer;

import com.iver.cit.gvsig.fmap.operations.Cancellable;

import com.iver.cit.gvsig.fmap.rendering.VectorialLegend;

/**

 * Estrategia para WFS.

 *

 * @author Vicente Caballero Navarro

 */

public class WFSStrategy extends DefaultStrategy {

        public WFSStrategy(FLayer capa) {

                super(capa);

        }

    /* (non-Javadoc)

     * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#draw(java.awt.image.BufferedImage, java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort, com.iver.cit.gvsig.fmap.operations.Cancellable)

     */

    public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, Cancellable cancel) throws DriverException {

        // Nos aprovechamos del SQL para lanzar la consulta

        // teniendo en cuenta el boundingbox que toca.

        FLayer capa = getCapa();

        WFSAdapter wfsAdapter = (WFSAdapter) ((SingleLayer) capa).getSource();

        WFSDriver wfsDriver = (WFSDriver) wfsAdapter.getDriver();

        wfsAdapter.start();

                Selectable selection = (Selectable) getCapa();

                ICoordTrans ct = getCapa().getCoordTrans();

                FBitSet bitSet = selection.getSelection();

        String strEPSG = viewPort.getProjection().getAbrev().substring(5);

        IFeatureIterator geomIt = wfsAdapter.getFeatureIterator(viewPort.getAdjustedExtent(), strEPSG);

        VectorialLegend l = (VectorialLegend) ((ClassifiableVectorial) capa).getLegend();

        int i;

        FSymbol symbol;

        try {

            while (geomIt.hasNext())

            {

                    if (cancel.isCanceled()) {

                        wfsAdapter.stop();

                            break;

                    }

                    IFeature feat = geomIt.next();

                IGeometry geom = feat.getGeometry();

                // TODO: CORREGIR LO DE LOS SIMBOLOS

                // Es probable que necesitemos generar un Feature

                // (Geometr?a + Atributos) para que opere con esa feature

                // el gestor de leyendas. A la leyenda le pasar?amos un

                // feature, y nos devolver? la colecci?n de s?mbolos a 

                // aplicar. Similar a lo de "processStylers" de GT2

                                // if (viewPort.getAdjustedExtent().intersects(geom.getBounds2D())){

                                i = wfsDriver.getRowIndexByFID(feat);

                symbol = l.getSymbolByFeature(feat);                

                if (symbol == null) continue;

               if (bitSet.get(i)) {

                    symbol = FSymbol.getSymbolForSelection(symbol);

                }

                //FSymbol symbol = l.getDefaultSymbol();

                geom.draw(g,viewPort, symbol);

            }

            //}

        } catch (SQLException e) {

            e.printStackTrace();

            throw new DriverException(e);

        }

        wfsAdapter.stop();

    }

}