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.

 */

/* 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.rectangle;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

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

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

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.exception.BaseException;

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

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

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

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.EditingProviderLocator;

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

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

/**

 * @author llmarques

 *

 */

public class RectangleEditingProvider extends AbstractEditingProvider implements

EditingProvider {

    protected EditingServiceParameter firstPoint;

    protected EditingServiceParameter oppositePoint;

    protected Map<EditingServiceParameter, Object> values;

    protected FeatureStore featureStore;

    /**

     * Default constructor.

     *

     * @param parameters

     *            of service.

     * @param providerServices

     *            available services. See {@link EditingProviderServices}.

     */

    public RectangleEditingProvider(ProviderServices providerServices,

        DynObject parameters) {

        super(providerServices);

        this.featureStore =

            (FeatureStore) parameters

            .getDynValue(EditingProviderFactory.FEATURE_STORE_FIELD);

        this.firstPoint =

            new DefaultEditingServiceParameter("first_point", "first_point",

                EditingServiceParameter.TYPE.POSITION);

        this.oppositePoint =

            new DefaultEditingServiceParameter("second_point", "second_point",

                EditingServiceParameter.TYPE.POSITION);

    }

    public EditingServiceParameter next() {

        if (values.get(firstPoint) == null) {

            return firstPoint;

        } else if (values.get(oppositePoint) == null) {

            return oppositePoint;

        }

        return null;

    }

    public DrawingStatus getDrawingStatus(Point mousePosition)

        throws DrawServiceException {

        DefaultDrawingStatus drawingStatus = new DefaultDrawingStatus();

        EditingProviderManager editingProviderManager =

            EditingProviderLocator.getProviderManager();

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

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

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

        if (values != null) {

            Point firstPointValue = (Point) values.get(firstPoint);

            if (firstPointValue != null) {

                drawingStatus.addStatus(firstPointValue, auxiliaryPointSymbolEditing, "");

                drawingStatus.addStatus(mousePosition, auxiliaryPointSymbolEditing, "");

                EditingProviderServices editingProviderServices =

                    (EditingProviderServices) getProviderServices();

                GeometryManager geometryManager =

                    GeometryLocator.getGeometryManager();

                try {

                    int subtype =

                        editingProviderServices.getSubType(featureStore);

                    Line rectangle = geometryManager.createLine(subtype);

                    rectangle.addVertex(firstPointValue);

                    Point secondPoint =

                        editingProviderServices.createPoint(

                            mousePosition.getX(), firstPointValue.getY(),

                            subtype);

                    rectangle.addVertex(secondPoint);

                    rectangle.addVertex(mousePosition);

                    Point thirdPoint =

                        editingProviderServices.createPoint(

                            firstPointValue.getX(), mousePosition.getY(),

                            subtype);

                    rectangle.addVertex(thirdPoint);

                    rectangle.addVertex(firstPointValue);

                    drawingStatus.addStatus(rectangle, lineSymbolEditing, "");

//                    drawingStatus.addGeometry(rectangle);

                } catch (BaseException e) {

                    throw new DrawServiceException(e);

                }

            }

        }

        return drawingStatus;

    }

    public void stop() throws StopServiceException {

        values.clear();

    }

    public List<EditingServiceParameter> getParameters() {

        List<EditingServiceParameter> parameters =

            new ArrayList<EditingServiceParameter>();

        parameters.add(firstPoint);

        parameters.add(oppositePoint);

        return parameters;

    }

    @Override

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

        validateAndInsertValue(parameter, value);

    }

    public void setValue(Object value) throws InvalidEntryException {

        EditingServiceParameter param = next();

        validateAndInsertValue(param, value);

    }

    /**

     * Checks if value is valid to parameter received as parameter.

     *

     * @param param

     *            of value

     * @param value

     *            to e inserted

     * @throws InvalidEntryException

     *             If values is no valid throw an InvalidEntryException

     */

    private void validateAndInsertValue(EditingServiceParameter param,

        Object value) throws InvalidEntryException {

        if (param == firstPoint) {

            if (value instanceof Point) {

                values.put(param, value);

                return;

            }

        } else if (param == oppositePoint) {

            if (value instanceof Point) {

                values.put(param, value);

                return;

            }

        }

        throw new InvalidEntryException(null);

    }

    public Geometry finish() throws FinishServiceException {

        if (values != null) {

            Point oppistePointValue = (Point) values.get(oppositePoint);

            EditingProviderServices editingProviderServices =

                (EditingProviderServices) getProviderServices();

            GeometryManager geometryManager =

                GeometryLocator.getGeometryManager();

            try {

                int subtype =

                    editingProviderServices.getSubType(featureStore);

                Line rectangle = geometryManager.createLine(subtype);

                Point firstPointValue = (Point) values.get(firstPoint);

                rectangle.addVertex(firstPointValue);

                Point secondPoint =

                    editingProviderServices.createPoint(

                        oppistePointValue.getX(), firstPointValue.getY(),

                        subtype);

                rectangle.addVertex(secondPoint);

                rectangle.addVertex(oppistePointValue);

                Point fourthPoint =

                    editingProviderServices.createPoint(

                        firstPointValue.getX(), oppistePointValue.getY(),

                        subtype);

                rectangle.addVertex(fourthPoint);

                rectangle.addVertex(firstPointValue);

                GeometryType geomType =

                    editingProviderServices.getGeomType(featureStore);

                if (geomType.isTypeOf(MULTICURVE)) {

                    MultiCurve multicurve;

                    multicurve =

                        GeometryLocator.getGeometryManager().createMultiCurve(

                            geomType.getSubType());

                    multicurve.addCurve(rectangle);

                    return multicurve;

                }

                return rectangle;

            } catch (BaseException e) {

                throw new FinishServiceException(

                    "There are some problem finalize" + this.getName(), e);

            }

        }

        return null;

    }

    public void finishAndStore() throws FinishServiceException {

        Geometry geometry = this.finish();

        EditingProviderServices editingProviderServices =

            (EditingProviderServices) getProviderServices();

        editingProviderServices.insertGeometryIntoFeatureStore(geometry,

            featureStore);

    }

    public void start() throws StartServiceException {

        values = new HashMap<EditingServiceParameter, Object>();

    }

    public String getName() {

        return RectangleEditingProviderFactory.PROVIDER_NAME;

    }

}