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.point;

import java.util.ArrayList;

import java.util.List;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

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

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

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

import org.gvsig.tools.dynobject.DynObject;

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

import org.gvsig.vectorediting.lib.api.EditingServiceParameter;

import org.gvsig.vectorediting.lib.api.EditingServiceParameter.TYPE;

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

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

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

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

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

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

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

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

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

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

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

public class PointEditingProvider extends AbstractEditingProvider

implements EditingProvider {

    private final EditingProviderServices editingProviderServices =

        (EditingProviderServices) getProviderServices();

    private final EditingServiceParameter point;

    private Point valuePoint;

    private final FeatureStore featureStore;

    public PointEditingProvider(ProviderServices services,

        DynObject parameters) {

        super(services);

        this.featureStore =

            (FeatureStore) parameters

            .getDynValue(EditingProviderFactory.FEATURE_STORE_FIELD);

        this.point =

            new DefaultEditingServiceParameter("insert_point",

                "indicate_new_point", TYPE.POSITION);

    }

    @Override

    public DefaultDrawingStatus getDrawingStatus(Point mousePosition)

        throws DrawServiceException {

        return null;

    }

    @Override

    public void stop() throws StopServiceException {

        valuePoint = null;

    }

    private boolean isValidValue(EditingServiceParameter param, Object value) {

        return (value instanceof Point);

    }

    @Override

    public EditingServiceParameter next() {

        if (valuePoint == null) {

            return this.point;

        }

        return null;

    }

    @Override

    public List<EditingServiceParameter> getParameters() {

        List<EditingServiceParameter> list =

            new ArrayList<>();

        list.add(point);

        return list;

    }

    @Override

    public void setValue(EditingServiceParameter parameter, Object value) throws InvalidEntryException {

        validateAndInsertValue(parameter, value);

    }

    @Override

    public void setValue(Object value) throws InvalidEntryException {

        EditingServiceParameter param = next();

        validateAndInsertValue(param, value);

    }

    private void validateAndInsertValue(EditingServiceParameter parameter,

        Object value) throws InvalidEntryException {

        if (isValidValue(parameter, value)) {

            this.valuePoint = (Point) value;

        } else {

            throw new InvalidEntryException(null);

        }

    }

    @Override

    public void finishAndStore() throws FinishServiceException {

        Geometry geometry;

        try {

            geometry = finish();

            editingProviderServices.insertGeometryIntoFeatureStore(geometry,

                featureStore);

        } catch (Exception e) {

            throw new FinishServiceException("Can't finalize " + this.getName()

                + "with X=" + valuePoint.getX() + " Y= " + valuePoint.getY(), e);

        }

    }

    @Override

    public void start() throws StartServiceException {

        this.valuePoint = null;

    }

    @Override

    public String getName() {

        return PointEditingProviderFactory.PROVIDER_NAME;

    }

    @Override

    public Geometry finish() throws FinishServiceException {

        Point geometry = null;

        try {

            int subtype = editingProviderServices.getSubType(featureStore);

            GeometryType geomType =

                editingProviderServices.getGeomType(featureStore);

            geometry =

                editingProviderServices.createPoint(valuePoint.getX(),

                    valuePoint.getY(), subtype);

            if (geomType.isTypeOf(MULTIPOINT)) {

                MultiPoint multiPoint;

                multiPoint = GeometryLocator.getGeometryManager().createMultiPoint(subtype);

                multiPoint.addPoint(geometry);

                return multiPoint;

            }

        } catch (Exception e) {

            throw new FinishServiceException("Can't finalize " + this.getName()

                + "with X=" + valuePoint.getX() + " Y= " + valuePoint.getY(), e);

        }

        return geometry;

    }

    @Override

    public Object getValue(EditingServiceParameter parameter) {

        if(parameter == this.point){

            return valuePoint;

        }

        return null;

    }

}