Application: gvSIG desktop

/* 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 com.iver.cit.gvsig.fmap.DriverException;

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

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

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

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

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

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

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

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

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

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;

import com.iver.cit.gvsig.fmap.rendering.styling.FStyle2D;

import org.apache.log4j.Logger;

import org.cresques.cts.ICoordTrans;

import java.awt.Graphics2D;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.util.BitSet;

/**

 * Implementa la Strategy por defecto. Los m?todos que tendr?n en com?n la

 * mayor parte de las estrategias

 */

public class DefaultStrategy implements Strategy {

        private static Logger logger = Logger.getLogger(DefaultStrategy.class.getName());

        private FLayer capa = null;

        /**

         * Crea un nuevo DefaultStrategy.

         *

         * @param capa DOCUMENT ME!

         */

        public DefaultStrategy(FLayer capa) {

                this.capa = capa;

                SingleLayer foo = (SingleLayer) capa;

                ClassifiableVectorial vectorial = (ClassifiableVectorial) capa;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByRect(java.awt.geom.Rectangle2D)

         */

        public BitSet queryByRect(Rectangle2D rect) throws DriverException {

                QueryByRectVisitor visitor = new QueryByRectVisitor();

                visitor.setRect(rect);

                try {

                        process(visitor);

                } catch (VisitException e) {

                        throw new RuntimeException(

                                "QueryByRectVisitor lanza una VisitException?");

                }

                return visitor.getBitSet();

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByShape(com.iver.cit.gvsig.fmap.fshape.IGeometry,

         *                 int)

         */

        public BitSet queryByShape(IGeometry g, int relationship)

                throws DriverException, VisitException {

                QueryByShapeVisitor visitor = new QueryByShapeVisitor();

                visitor.setRelationShip(relationship);

                visitor.setShape(g);

                process(visitor);

                return visitor.getBitSet();

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#getSelectionBounds()

         */

        public Rectangle2D getSelectionBounds() {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#createIndex()

         */

        public void createIndex() {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.LayerOperations#draw(java.awt.image.BufferedImage,

         *                 java.awt.Graphics2D, FStyle2D)

         */

        public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort,

                Cancellable cancel) throws DriverException {

                try {

                        VectorialAdapter adapter = ((SingleLayer) capa).getSource();

                        ICoordTrans ct = getCapa().getCoordTrans();

                        logger.debug("adapter.start()");

                        adapter.start();

                        VectorialFileDriver driver = (VectorialFileDriver) adapter.getDriver();

                        int sc;

                        long t1 = System.currentTimeMillis();

                        Rectangle2D extent = viewPort.getAdjustedExtent();

                        AffineTransform at = viewPort.getAffineTransform();

                        sc = adapter.getShapeCount();

                        for (int i = 0; i < sc; i++) {

                                if (cancel.isCanceled()) {

                                        break;

                                }

                                IGeometry geom = adapter.getShape(i);

                                if (geom == null) {

                                        continue;

                                }

                                if (ct != null) {

                                        geom.reProject(ct);

                                }

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

                                if (geom.intersects(extent)) {

                                        FSymbol symbol = l.getSymbol(i);

                                        geom.draw(g, viewPort, symbol);

                                }

                        }

                        long t2 = System.currentTimeMillis();

                        logger.debug("adapter.stop()");

                        adapter.stop();

                        // TODO: A revisar si es o no conveniente este sistema

                        // de comunicaci?n con los drivers.

                        DriverAttributes attr = adapter.getDriverAttributes();

                        if (attr != null)

                        {

                            if (attr.isLoadedInMemory())

                            {

                                // Quitamos lo de la reproyecci?n al vuelo para que 

                                // solo se haga una vez.

                                getCapa().setCoordTrans(null);

                            }

                        }

                        System.out.println(t2 - t1);

                } catch (DriverIOException e) {

                        throw new DriverException(e);

                }

        }

        /**

         * Devuelve la capa.

         *

         * @return Returns the capa.

         */

        public FLayer getCapa() {

                return capa;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.LayerOperations#getFullExtent()

         */

        public Rectangle2D getFullExtent() throws DriverException {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor,

         *                 java.util.BitSet)

         */

        public void process(FeatureVisitor visitor, BitSet subset)

                throws DriverException, VisitException {

                try {

                        logger.debug("visitor.start()");

                        if (visitor.start(capa)) {

                                VectorialAdapter va = ((SingleLayer) capa).getSource();

                                va.start();

                                for (int i = 0; i < va.getShapeCount(); i++) {

                                        if (subset.get(i)) {

                                                visitor.visit(va.getShape(i), i);

                                        }

                                }

                                va.stop();

                                logger.debug("visitor.stop()");

                                visitor.stop(capa);

                        }

                } catch (DriverIOException e) {

                        throw new DriverException(e);

                }

        }

        /**

         * DOCUMENT ME!

         *

         * @param visitor DOCUMENT ME!

         *

         * @throws DriverException DOCUMENT ME!

         * @throws VisitException

         *

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor)

         */

        public void process(FeatureVisitor visitor)

                throws DriverException, VisitException {

                try {

                        logger.debug("visitor.start()");

                        if (visitor.start(capa)) {

                                VectorialAdapter va = ((SingleLayer) capa).getSource();

                                va.start();

                                for (int i = 0; i < va.getShapeCount(); i++) {

                                        visitor.visit(va.getShape(i), i);

                                }

                                va.stop();

                                logger.debug("visitor.stop()");

                                visitor.stop(capa);

                        }

                } catch (DriverIOException e) {

                        throw new DriverException(e);

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByPoint(Point2D,

         *                 double)

         */

        public BitSet queryByPoint(Point2D p, double tolerance)

                throws DriverException {

                QueryByPointVisitor visitor = new QueryByPointVisitor();

                visitor.setLayer(capa);

                visitor.setTolerance(tolerance);

                visitor.setQueriedPoint(p);

                try {

                        process(visitor);

                } catch (VisitException e) {

                        throw new RuntimeException(

                                "QueryByPointVisitor lanza una VisitException?");

                }

                return visitor.getBitSet();

        }

        /* (non-Javadoc)

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

         */

        public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel)

                throws DriverException {

                draw(null, g, viewPort, cancel); // Quiero ejecutar el draw del padre, que es el que va sin acelaraci?n!!

        }

}