| 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.edition.rules;

import com.iver.cit.gvsig.fmap.core.FCircle2D;

import com.iver.cit.gvsig.fmap.core.FEllipse2D;

import com.iver.cit.gvsig.fmap.core.FPolyline2D;

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

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

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

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

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

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

import com.iver.cit.gvsig.fmap.edition.EditionEvent;

/**

 * @author fjp

 *

 * Si le llega un punto, no pasa.

 * Si le llega una l?nea cerrada, la convierte en pol?gono y pasa.

 */

public class RulePolygon extends AbstractRule {

    public boolean validate(IRow row,int sourceType) {

        if (sourceType==EditionEvent.ALPHANUMERIC)

                return true;

            IFeature feat = (IFeature) row;

        IGeometry geom = feat.getGeometry();

        if ((geom.getInternalShape() instanceof FCircle2D)

                        || (geom.getInternalShape() instanceof FEllipse2D)) {

                return true;

        }

        GeneralPathX gp = new GeneralPathX();

        gp.append(geom.getPathIterator(null, FConverter.FLATNESS), true);

        if (gp.isClosed())

        {

                boolean bCCW =gp.isCCW();

                System.out.println("Counter ClockWise  = " + bCCW);

                if (bCCW)

                {

//                         gp.ensureOrientation(false);

                        gp.flip();

//                    IGeometry aux = ShapeFactory.createPolygon2D(gp);

//                    Geometry jtsGeom = aux.toJTSGeometry();

//                    geom = FConverter.jts_to_igeometry(jtsGeom);

                        geom = ShapeFactory.createPolygon2D(gp);

                }

                else

                {

                        geom = ShapeFactory.createPolygon2D((FPolyline2D)geom.getInternalShape());

                }

//                IGeometry aux = ShapeFactory.createPolygon2D(gp);

//

//                Geometry jtsGeom = geom.toJTSGeometry();

//                System.err.println(jtsGeom.toText());

//

//                geom = FConverter.jts_to_igeometry(jtsGeom);

            // gp.ensureOrientation(false); // Poligono exterior.

//                Area area = new Area(geom);

//            GeneralPathX gp2 = new GeneralPathX();

//            gp2.append(area.getPathIterator(null), true);

//            geom = ShapeFactory.createPolygon2D(gp2);

            feat.setGeometry(geom);

            return true;

        }

        return false;

    }

}