Application: gvSIG desktop

package org.gvsig.fmap.drivers.gpe.model;

import java.awt.geom.PathIterator;

import java.awt.geom.Rectangle2D;

import java.util.ArrayList;

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

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

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

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

/* 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

 */

/* CVS MESSAGES:

 *

 * $Id$

 * $Log$

 *

 */

/**

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 */

public class GPEMultiGeometry extends GPEGeometry{

        protected IGeometry geometry = null;

        protected ArrayList geometries = null;

        protected Rectangle2D bounds = null;

        public  GPEMultiGeometry(String id, String srs) {

                super(id, null, srs);

                geometries = new ArrayList();                

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.drivers.gpe.model.GPEGeometry#getGeometry()

         */

        public IGeometry getIGeometry() {

                if (geometry == null){

                        geometry = ShapeFactory.createPolygon2D(createGeneralXPath());

                }

                return geometry;

        }

        /**

         * Create the general X path

         * @return

         */

        protected GeneralPathX createGeneralXPath(){

                GeneralPathX gp = new GeneralPathX();

                for (int i=0 ; i<geometries.size() ; i++){

                        IGeometry geom =((GPEGeometry)geometries.get(i)).getIGeometry();

                        FShape shape = (FShape)geom.getInternalShape();

                        PathIterator it = shape.getPathIterator(null);

                        int theType;

                        double[] theData = new double[6];                        

                        while (!it.isDone()){

                                theType = it.currentSegment(theData);

                                switch (theType) {

                                case PathIterator.SEG_MOVETO:

                                        gp.moveTo(theData[0], theData[1]);                        

                                        break;

                                case PathIterator.SEG_LINETO:

                                        gp.lineTo(theData[0], theData[1]);                

                                        break;

                                case PathIterator.SEG_CLOSE:        

                                        break;

                                }

                                it.next();

                        }

                }

                return gp;

        }

        /**

         * Gets one geometry

         * @param i

         * Geometry position

         * @return

         * A Geometry

         */

        public GPEGeometry getGeometryAt(int i){

                return (GPEGeometry)geometries.get(i);

        }

        /**

         * @return the number of geometries

         */

        public int getGeometriesSize(){

                return geometries.size();

        }

        /**

         * Adds a new geometry

         * @param geometry

         * The geometry to add

         */

        public void addGeometry(GPEGeometry geometry){

                if (bounds == null){

                        bounds = geometry.getShapeBounds();

                }else{

                        bounds.add(geometry.getShapeBounds());

                }

                geometries.add(geometry);

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.drivers.gpe.model.GPEGeometry#getShapeBounds()

         */

        public Rectangle2D getShapeBounds() {

                return bounds;

        }

}