Application: gvSIG desktop » gvSIG tools: Vector editing

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2014 gvSIG Association

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.vectorediting.lib.prov.circlecr;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.GeometryUtils;

import org.gvsig.fmap.geom.aggregate.MultiCurve;

import org.gvsig.fmap.geom.primitive.Circumference;

import org.gvsig.fmap.geom.primitive.Curve;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.fmap.geom.type.GeometryType;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.service.spi.ProviderServices;

import org.gvsig.vectorediting.lib.api.exceptions.DrawServiceException;

import org.gvsig.vectorediting.lib.api.exceptions.FinishServiceException;

import org.gvsig.vectorediting.lib.spi.DefaultDrawingStatus;

import org.gvsig.vectorediting.lib.spi.EditingProvider;

import org.gvsig.vectorediting.lib.spi.EditingProviderLocator;

import org.gvsig.vectorediting.lib.spi.EditingProviderManager;

import org.gvsig.vectorediting.lib.spi.EditingProviderServices;

public class CircumferenceCDEditingProvider extends CircleCDEditingProvider

implements EditingProvider {

    public CircumferenceCDEditingProvider(ProviderServices providerServices,

        DynObject parameters) {

        super(providerServices, parameters);

    }

    @Override

    public DefaultDrawingStatus getDrawingStatus(Point mousePosition) throws DrawServiceException {

        DefaultDrawingStatus geometries = new DefaultDrawingStatus();

        EditingProviderManager editingProviderManager = EditingProviderLocator.getProviderManager();

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        ISymbol lineSymbolEditing = editingProviderManager.getSymbol("line-symbol-editing");

        ISymbol auxiliaryLineSymbolEditing = editingProviderManager.getSymbol("auxiliary-line-symbol-editing");

        ISymbol auxiliaryPointSymbolEditing = editingProviderManager.getSymbol("auxiliary-point-symbol-editing");

        ISymbol previewSymbol = this.getPreviewSymbol();

        geometries.setPreviewSymbol(previewSymbol);

        if ((values != null) && (values.get(center) != null)

            && (values.get(diameter) == null)) {

            Point centerPoint = (Point) values.get(center);

            EditingProviderServices editingProviderServices =

                (EditingProviderServices) getProviderServices();

            try {

                int subtype = editingProviderServices.getSubType(featureStore);

                Point oppositePosition = GeometryUtils.createPoint(

                        centerPoint.getX() - (mousePosition.getX() - centerPoint.getX()),

                        centerPoint.getY() - (mousePosition.getY() - centerPoint.getY())

                );

                Curve line

                        = editingProviderServices.createLine(oppositePosition, mousePosition, subtype);

                Circumference circumference = (Circumference) geomManager.create(CIRCUMFERENCE, subtype);

                circumference.setPoints(centerPoint, mousePosition.distance(centerPoint));

                geometries.addStatus(centerPoint, auxiliaryPointSymbolEditing, "");

                geometries.addStatus(line, auxiliaryLineSymbolEditing, "");

                geometries.addStatus(circumference, lineSymbolEditing, "");

                geometries.addStatus(circumference, previewSymbol, "");

            } catch (Exception e) {

                throw new DrawServiceException(e);

            }

            return geometries;

        }

        return null;

    }

    @Override

    public Geometry finish() throws FinishServiceException {

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        Point centerPoint = (Point) values.get(center);

        double diameterValue = (Double) values.get(diameter);

        EditingProviderServices editingProviderServices =

            (EditingProviderServices) getProviderServices();

        try {

            int subtype = editingProviderServices.getSubType(featureStore);

            GeometryType storeGeomType =

                editingProviderServices.getGeomType(featureStore);

            Circumference circumference = (Circumference) geomManager.create(CIRCUMFERENCE, subtype);

            circumference.setPoints(centerPoint, diameterValue / 2.0);

            if (storeGeomType.isTypeOf(MULTICURVE)) {

                MultiCurve multicurve;

                multicurve =

                    GeometryLocator.getGeometryManager().createMultiCurve(

                        storeGeomType.getSubType());

                multicurve.addCurve((Circumference) circumference);

                return multicurve;

            }

            return circumference;

        } catch (Exception e) {

            throw new FinishServiceException(e);

        }

    }

    @Override

    public String getName() {

        return CircumferenceCDEditingProviderFactory.PROVIDER_NAME;

    }

}