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.offset.lib.prov.offset;

import java.text.DecimalFormat;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.fmap.dal.exception.DataException;

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

import static org.gvsig.fmap.geom.Geometry.JOIN_STYLE_ROUND;

import org.gvsig.fmap.geom.GeometryException;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.GeometryUtils;

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

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

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

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

import org.gvsig.fmap.geom.operation.GeometryOperationException;

import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

import org.gvsig.symbology.SymbologyLocator;

import org.gvsig.symbology.SymbologyManager;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.text.ISimpleTextSymbol;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dataTypes.DataTypes;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.tools.dispose.DisposeUtils;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.i18n.I18nManager;

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.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.DefaultEditingServiceParameterOptions;

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;

public class OffsetEditingProvider extends AbstractEditingProvider implements

        EditingProvider {

    private static final Double PRECISION = 1.0e-5;

    private static final String SIDE = "_side";

    private static final String LEFT = "_left";

    private static final String RIGHT = "_right";

    private static final String SHORT_LEFT = "_short_left";

    private static final String SHORT_RIGHT = "_short_right";

    private static final String JOIN_STYLE = "_join_style";

    private static final String ROUND = "_round";

    private static final String MITRE = "_mitre";

    private static final String BEVEL = "_bevel";

    private static final String SHORT_ROUND = "_short_round";

    private static final String SHORT_MITRE = "_short_mitre";

    private static final String SHORT_BEVEL = "_short_bevel";

    private final EditingServiceParameter selectionParameter;

    private final EditingServiceParameter offsetParameter;

    private final EditingServiceParameter sideParameter;

    private final DefaultEditingServiceParameter joinStyleParameter;

    private final EditingServiceParameter equidistantOffsets;

    private final EditingServiceParameter deleteOriginalGeometriesParameter;

//    private boolean deleteOriginalGeometries = false;

    private Map<EditingServiceParameter, Object> values;

//    private final Map<String, String> options;

    private final FeatureStore featureStore;

    public OffsetEditingProvider(ProviderServices providerServices, DynObject parameters) {

        super(providerServices);

        this.featureStore = (FeatureStore) parameters.getDynValue(EditingProviderFactory.FEATURE_STORE_FIELD);

        I18nManager i18nManager = ToolsLocator.getI18nManager();

        EditingProviderServices editingProviderServices

                = (EditingProviderServices) getProviderServices();

        this.selectionParameter

                = new DefaultEditingServiceParameter("selection",

                        i18nManager.getTranslation("selection"), TYPE.SELECTION);

        this.offsetParameter

                = new DefaultEditingServiceParameter("offset_distance",

                        i18nManager.getTranslation("offset_distance"),

                        TYPE.POSITION, TYPE.VALUE, TYPE.DISTANCE);

        Map<String, String> sideOptions = new HashMap<>();

        sideOptions.put(i18nManager.getTranslation(SHORT_LEFT), i18nManager.getTranslation(LEFT));

        sideOptions.put(i18nManager.getTranslation(SHORT_RIGHT), i18nManager.getTranslation(RIGHT));

        String sideConsoleMsg

        = ((EditingProviderServices)providerServices).makeConsoleMessage(

                i18nManager.getTranslation(SIDE), sideOptions);

        this.sideParameter

                = new DefaultEditingServiceParameter("side",

                        sideConsoleMsg,

                        sideOptions,

                        TYPE.OPTION, TYPE.POSITION).setDataType(DataTypes.STRING);

        DefaultEditingServiceParameterOptions joinStyleOptions = new DefaultEditingServiceParameterOptions()

                .add(i18nManager.getTranslation(ROUND), ROUND, i18nManager.getTranslation(SHORT_ROUND))

                .add(i18nManager.getTranslation(MITRE), MITRE, i18nManager.getTranslation(SHORT_MITRE))

                .add(i18nManager.getTranslation(BEVEL), BEVEL, i18nManager.getTranslation(SHORT_BEVEL));

        String joinStyleConsoleMsg = ((EditingProviderServices)providerServices).makeConsoleMessage(

                i18nManager.getTranslation(JOIN_STYLE), joinStyleOptions);

        this.joinStyleParameter

                = new DefaultEditingServiceParameter(

                        "joinStyle",

                        joinStyleConsoleMsg,

                        joinStyleOptions,

                        i18nManager.getTranslation(SHORT_ROUND),

                        true, 

                        TYPE.OPTION); //.setDataType(DataTypes.STRING);

        this.joinStyleParameter.setDefaultValue(ROUND);

        this.equidistantOffsets = new DefaultEditingServiceParameter("equidistant_offsets", "equidistant_offsets", true, TYPE.VALUE);

        this.equidistantOffsets.setDefaultValue(1);

        DefaultEditingServiceParameterOptions deleteOriginalGeometriesOptions2 = new DefaultEditingServiceParameterOptions()

                .add("delete_original_geometries", true, i18nManager.getTranslation("_yes"))

                .add("keep_original_geometries", false, i18nManager.getTranslation("_no"));

        String consoleMsg

                = editingProviderServices.makeConsoleMessage(

                        "delete_original_geometries_question", deleteOriginalGeometriesOptions2);

        this.deleteOriginalGeometriesParameter

                = new DefaultEditingServiceParameter(

                        i18nManager.getTranslation("delete_original_geometries"),

                        consoleMsg,

                        deleteOriginalGeometriesOptions2,

                        false,

                        TYPE.OPTION).setDataType(DataTypes.BOOLEAN);

    }

    @Override

    public EditingServiceParameter next() {

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

            return selectionParameter;

        }

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

            return offsetParameter;

        }

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

            Object offsetValue = values.get(offsetParameter);

            if (!(offsetValue instanceof Point)) {

                Double distance = (Double) offsetValue;

                if (distance >= 0) {

                    return sideParameter;

                }

            }

        }

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

            return this.deleteOriginalGeometriesParameter;

        }

        return null;

    }

    @Override

    public DrawingStatus getDrawingStatus(Point mousePosition) throws DrawServiceException {

        DefaultDrawingStatus drawingStatus = new DefaultDrawingStatus();

        EditingProviderManager editingProviderManager

                = EditingProviderLocator.getProviderManager();

        EditingProviderServices editingProviderServices =

            (EditingProviderServices) getProviderServices();

        int subtype;

        try {

            subtype = editingProviderServices.getSubType(featureStore);

        } catch (DataException e2) {

            throw new DrawServiceException(e2);

        }

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

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

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

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

        ISymbol polygonSymbolEditing = editingProviderManager.getSymbol("polygon-symbol-editing");

        if (values != null) {

            Number equidistantOffsetsNumberValue = ((Number) values.get(this.equidistantOffsets));

            int equidistantOffsetsValue = equidistantOffsetsNumberValue != null ? equidistantOffsetsNumberValue.intValue() : ((Number) this.equidistantOffsets.getDefaultValue()).intValue();

            FeatureSelection selected

                    = (FeatureSelection) values.get(selectionParameter);

            try {

                if ((selected != null) && !selected.isEmpty()) {

                    Point point; // = null;

                    double distance = 0.0;

                    double side = 1.0;

                    Object offsetValue = values.get(offsetParameter);

                    if (offsetValue != null) {

                        if (offsetValue instanceof Point) {

                            distance = Math.abs(getMinDistance(selected, (Point) offsetValue));

                        } else {

                            distance = (Double) offsetValue;

                        }

                        Object sideValue = values.get(sideParameter);

                        if (sideValue == null) {

                            point = mousePosition;

                            side = Math.signum(getMinDistance(selected, point));

                        } else {

                            Double signum = getSideSignum((String) sideValue);

                            if (signum != null) {

                                side = signum;

                            }

                        }

                    } else {

                        point = mousePosition;

                        Geometry closestGeometry = getClosestGeometry(selected, point);

                        Point closestPoint = getClosestPoint(closestGeometry, point);

                        distance = getMinDistance(selected, point); //closestPoint.distance(point); //getMinDistance(selected, point);

                        ISymbol symbol = lineSymbolEditing;

                        Line auxLine = GeometryUtils.createLine(closestPoint, point, subtype);

                        drawingStatus.addStatus(

                                auxLine,

                                auxiliaryLineSymbolEditing,

                                ""

                        );

                        Point pointText = GeometryUtils.createPoint(

                                0.5 * (closestPoint.getX() + point.getX()),

                                0.5 * (closestPoint.getY() + point.getY())

                        );

                        ISimpleTextSymbol textSymbol = getTextSymbol();

                        drawingStatus.addStatus(

                                pointText,

                                textSymbol,

                                new DecimalFormat("#.0#").format(distance)

                        );

                    }

                    int joinStyleValue = coerceJoinStyle(values.get(joinStyleParameter));

                    DisposableIterator it;

                    it = selected.fastIterator();

                    while (it.hasNext()) {

                        Feature feat = (Feature) it.next();

                        ISymbol previewSymbol = this.getPreviewSymbol(feat);

                        for (int c = 1; c <= equidistantOffsetsValue; c++) {

                            Geometry transformedGeometry = feat.getDefaultGeometry().offset(joinStyleValue, c * distance * side);

                            ISymbol symbol = null;

                            if (transformedGeometry instanceof Curve || transformedGeometry instanceof MultiCurve) {

                                symbol = lineSymbolEditing;

                                drawingStatus.addStatus(feat.getDefaultGeometry(), auxiliaryLineSymbolEditingDirection, "Direction");

                            } else if (transformedGeometry instanceof Surface || transformedGeometry instanceof MultiSurface) {

                                symbol = polygonSymbolEditing;

                            } else if (transformedGeometry instanceof Point || transformedGeometry instanceof MultiPoint) {

                                symbol = auxiliaryPointSymbolEditing;

                            }

                            if (transformedGeometry instanceof Aggregate) {

                                int primitivesNumber = ((Aggregate) transformedGeometry).getPrimitivesNumber();

                                for (int i = 0; i < primitivesNumber; i++) {

                                    final Primitive primitive = ((Aggregate) transformedGeometry).getPrimitiveAt(i);

                                    drawingStatus.addStatus(primitive, symbol, "");

                                    drawingStatus.addStatus(primitive, previewSymbol, "");

                                }

                            } else {

                                drawingStatus.addStatus(transformedGeometry, symbol, "");

                                drawingStatus.addStatus(transformedGeometry, previewSymbol, "");

                            }

                        }

                    }

                    DisposeUtils.disposeQuietly(it);

                }

            } catch (Exception e) {

                throw new DrawServiceException(e);

            }

        }

        return drawingStatus;

    }

    /**

     * @param selected

     * @param point

     * @return

     * @throws DataException

     * @throws GeometryOperationException

     * @throws GeometryOperationNotSupportedException

     * @throws GeometryException

     */

    private double getMinDistance(FeatureSelection selected, Point point) throws DataException, GeometryOperationNotSupportedException, GeometryOperationException, GeometryException {

//        Geometry closestGeometry = getClosestGeometry(selected, point);

//        if(closestGeometry != null){

//            return closestGeometry.distance(point);

//        }

//        //No deber?a pasar por aqu?

        double minorDistance = Double.POSITIVE_INFINITY;

        DisposableIterator it;

        it = selected.fastIterator();

        while (it.hasNext()) {

            Feature feat = (Feature) it.next();

            Geometry geometry = feat.getDefaultGeometry();

            double distance = getDistance(geometry, point);

            if (distance < minorDistance) {

                minorDistance = distance;

            }

        }

        it.dispose();

        return minorDistance;

    }

    private Geometry getClosestGeometry(FeatureSelection selected, Point point) throws DataException, GeometryOperationNotSupportedException, GeometryOperationException, GeometryException {

        double minorDistance = Double.POSITIVE_INFINITY;

        DisposableIterator it;

        it = selected.fastIterator();

        Geometry closestGeometry = null;

        while (it.hasNext()) {

            Feature feat = (Feature) it.next();

            Geometry geometry = feat.getDefaultGeometry();

            double distance = getDistance(geometry, point);

            if (distance < minorDistance) {

                closestGeometry = geometry;

                minorDistance = distance;

            }

        }

        it.dispose();

        return closestGeometry;

    }

    /**

     * @param geometry

     * @param point

     * @return

     * @throws GeometryOperationException

     * @throws GeometryOperationNotSupportedException

     * @throws GeometryException

     */

    private double getDistance(Geometry geometry, Point point) throws GeometryOperationNotSupportedException, GeometryOperationException, GeometryException {

//        Point closest = getClosestPoint(geometry, point);

//        if(closest != null) {

//            return closest.distance(point);

//        }

        //No deber?a pasar por aqu?

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        if (geometry instanceof Arc) {

            Arc arc = (Arc) geometry;

            Point center = arc.getCenterPoint();

            double radius = center.distance(arc.getInitPoint());

            double distance = center.distance(point) - radius;

            return distance;

        }

        if (geometry instanceof Circle) {

            Circle circle = (Circle) geometry;

            return circle.getCenter().distance(point) - circle.getRadious();

        }

        if (geometry instanceof Circumference) {

            Circumference circumference = (Circumference) geometry;

            return circumference.getCenter().distance(point) - circumference.getRadious();

        }

        if (geometry instanceof PeriEllipse) {

            double minDistance = Double.POSITIVE_INFINITY;

            PeriEllipse ellipse = (PeriEllipse) geometry;

            Geometry[] closestPoints = point.closestPoints(ellipse);

            if (closestPoints != null) {

                for (Geometry closestPoint : closestPoints) {

                    if (!point.equals(closestPoint)) {

                        double distance = closestPoint.distance(point);

                        if (distance < minDistance) {

                            minDistance = distance;

                        }

                    }

                }

            }

            Ellipse auxEllipse = (Ellipse) geomManager.create(Geometry.TYPES.ELLIPSE, geometry.getGeometryType().getSubType());

            auxEllipse.setPoints(ellipse.getAxis1Start(), ellipse.getAxis1End(), ellipse.getAxis2Dist());

            if (auxEllipse.contains(point)) {

                return -minDistance;

            }

            return minDistance;

        }

        if (geometry instanceof Ellipse) {

            Ellipse ellipse = (Ellipse) geometry;

            PeriEllipse auxPeriEllipse = (PeriEllipse) geomManager.create(Geometry.TYPES.PERIELLIPSE, geometry.getGeometryType().getSubType());

            auxPeriEllipse.setPoints(ellipse.getAxis1Start(), ellipse.getAxis1End(), ellipse.getAxis2Dist());

            double distance = getDistance(auxPeriEllipse, point);

            return distance;

        }

        if (geometry instanceof Spline || geometry instanceof FilledSpline) {

            return getDistance(geometry.toLines().getPrimitiveAt(0), point);

        }

        if (geometry instanceof Line) {

            Line line = (Line) geometry;

            double minDistance = Double.POSITIVE_INFINITY;

            Geometry[] closestPoints = point.closestPoints(line);

            Point closestPoint = null;

            if (closestPoints != null) {

                for (Geometry closestPoint1 : closestPoints) {

                    Point p = (Point) closestPoint1;

                    if (!point.equals(p)) {

                        double distance = p.distance(point);

                        if (distance < minDistance) {

                            minDistance = distance;

                            closestPoint = p;

                        }

                    }

                }

            }

            if (closestPoint != null) {

                for (int i = 0; i < line.getNumVertices() - 1; i++) {

                    Line segment = (Line) geomManager.create(Geometry.TYPES.LINE, geometry.getGeometryType().getSubType());

                    segment.addVertex(line.getVertex(i));

                    segment.addVertex(line.getVertex(i + 1));

                    if (segment.isWithinDistance(closestPoint, PRECISION)) {

                        if (line.getVertex(0).equals(line.getVertex(line.getNumVertices() - 1))) { //isClosed

                            if (line.toPolygons().contains(point)) {

                                return -minDistance;

                            }

                            return minDistance;

                        } else {

                            return getDirectedDistance(closestPoint, point, segment);

                        }

                    }

                }

            }

        }

        if (geometry instanceof Polygon) {

            Polygon polygon = (Polygon) geometry;

            if (!polygon.contains(point)) {

                double minDistance = Double.POSITIVE_INFINITY;

                Geometry[] closestPoints = point.closestPoints(polygon);

                Point closestPoint = null;

                if (closestPoints != null) {

                    for (Geometry closestPoint1 : closestPoints) {

                        Point p = (Point) closestPoint1;

                        if (!point.equals(p)) {

                            double distance = p.distance(point);

                            if (distance < minDistance) {

                                minDistance = distance;

                                closestPoint = p;

                            }

                        }

                    }

                }

                if (closestPoint != null) {

                    return closestPoint.distance(point);

                }

            } else {

                Line auxLine = (Line) polygon.toLines().getPrimitiveAt(0);

                if (auxLine != null) {

                    return getDistance(auxLine, point);

                }

            }

        }

        if (geometry instanceof Aggregate) {

            double minDistance = Double.POSITIVE_INFINITY;

            Aggregate aggregate2 = (Aggregate) geometry;

            for (int i = 0; i < aggregate2.getPrimitivesNumber(); i++) {

                double distance = getDistance(aggregate2.getPrimitiveAt(i), point);

                if (distance < minDistance) {

                    minDistance = distance;

                }

            }

            return minDistance;

        }

        return 0.0;

    }

    private Point getClosestPoint(Geometry geometry, Point point) throws GeometryOperationNotSupportedException, GeometryOperationException, GeometryException {

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        if (geometry instanceof Line) {

            Line line = (Line) geometry;

            return (Point)line.closestPoints(point)[0];

        } else {

            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

        }

//        if (geometry instanceof Arc) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//

//        if (geometry instanceof Circle) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//        if (geometry instanceof Circumference) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//        if (geometry instanceof PeriEllipse) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//        if (geometry instanceof Ellipse) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//

//        if (geometry instanceof Spline || geometry instanceof FilledSpline) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//

//

//        if (geometry instanceof Polygon) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//

//        if (geometry instanceof Aggregate) {

//            return (Point)geometry.toLines().getPrimitiveAt(0).closestPoints(point)[0];

//        }

//        return null;

    }

//    

    @Override

    public void stop() {

        values.clear();

    }

    @Override

    public void restart() throws StartServiceException, InvalidEntryException, StopServiceException {

//        values.put(selectionParameter, null);

        values.put(offsetParameter, null);

        values.put(sideParameter, null);

        values.put(deleteOriginalGeometriesParameter, null);

    }

    private void validateAndInsertValue(EditingServiceParameter param,

            Object value) throws InvalidEntryException {

        I18nManager i18nManager = ToolsLocator.getI18nManager();

        try {

            if (param == selectionParameter) {

                if (value instanceof FeatureSelection) {

                    values.put(param, value);

                }

            } else if (param == joinStyleParameter) {

                if (value instanceof String) {

                    values.put(param, fixJoinStyle(value));

                }

            } else if (param == offsetParameter) {

                if (value instanceof Point) {

                    Double distance = getMinDistance((FeatureSelection) values.get(selectionParameter), (Point) value);

                    if (distance == 0.0) {

                        throw new IllegalArgumentException("distance can't be 0");

                    }

                    values.put(param, Math.abs(distance));

                    values.put(sideParameter, coerceSide(distance));

                    return;

                }

                if (value instanceof Double) {

                    Double distance = (Double) value;

                    if (distance > 0) {

                        values.put(param, value);

                    } else if (distance == 0.0) {

                        throw new IllegalArgumentException("distance can't be 0");

                    } else {

                        values.put(param, Math.abs(distance));

                        values.put(sideParameter, coerceSide(distance));

                    }

                }

            } else if (param == sideParameter) {

                if (value instanceof Point) {

                    values.put(param, coerceSide(getMinDistance((FeatureSelection) values.get(selectionParameter), (Point) value)));

                    return;

                }

                if (value instanceof String) {

                    values.put(param, coerceSide(value));

                }

            } else if (param == equidistantOffsets) {

                if (value instanceof Number) {

                    int intValue = ((Number) value).intValue();

                    if(intValue >= 1) {

                        values.put(param, ((Number) value).intValue());

                    }

                }

            } else if (param == deleteOriginalGeometriesParameter) {

                values.put(param, param.getOptions2().getValue(value, param.getDefaultValue()));

            }

        } catch (Exception e) {

            throw new InvalidEntryException(e);

        }

    }

    private String coerceSide(Object value) throws InvalidEntryException {

        if (value instanceof Double) {

            return (Double) value >= 0 ? LEFT : RIGHT;

        }

        if (value instanceof String) {

            Double signum = getSideSignum((String) value);

            if (signum != null) {

                return signum >= 0 ? LEFT : RIGHT;

            }

        }

        throw new InvalidEntryException(null);

    }

    private String fixJoinStyle(Object value) throws InvalidEntryException {

        if (value instanceof String) {

            I18nManager i18nManager = ToolsLocator.getI18nManager();

            String joinStyleTrim = ((String)value).trim();

            if (StringUtils.equalsIgnoreCase(joinStyleTrim, ROUND)

                    || StringUtils.startsWithIgnoreCase(i18nManager.getTranslation(ROUND), joinStyleTrim)) {

                return ROUND;

            } else if (StringUtils.equalsIgnoreCase(joinStyleTrim, BEVEL)

                    || StringUtils.startsWithIgnoreCase(i18nManager.getTranslation(BEVEL), joinStyleTrim)) {

                return BEVEL;

            } else if (StringUtils.equalsIgnoreCase(joinStyleTrim, MITRE)

                    || StringUtils.startsWithIgnoreCase(i18nManager.getTranslation(MITRE), joinStyleTrim)) {

                return MITRE;

            }

        }

        throw new InvalidEntryException(null);

    }

    private Double getSideSignum(String side) {

        I18nManager i18nManager = ToolsLocator.getI18nManager();

        String sideTrim = side.trim();

        if (StringUtils.equalsIgnoreCase(sideTrim, LEFT)

                || StringUtils.startsWithIgnoreCase(i18nManager.getTranslation(LEFT), sideTrim)) {

            return 1.0;

        } else if (StringUtils.equalsIgnoreCase(sideTrim, RIGHT)

                || StringUtils.startsWithIgnoreCase(i18nManager.getTranslation(RIGHT), sideTrim)) {

            return -1.0;

        }

        return null;

    }

    @Override

    public List<EditingServiceParameter> getParameters() {

        List<EditingServiceParameter> list

                = new ArrayList<>();

        list.add(selectionParameter);

        list.add(joinStyleParameter);

        list.add(offsetParameter);

        list.add(sideParameter);

        list.add(equidistantOffsets);

        list.add(deleteOriginalGeometriesParameter);

        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);

    }

    @Override

    public void finishAndStore() throws FinishServiceException {

        FeatureSelection selected

                = (FeatureSelection) values.get(selectionParameter);

        try {

            if (!selected.isEmpty()) {

                double side = 1.0;

                Object sideValue = values.get(sideParameter);

                if (sideValue != null) {

                    if (sideValue instanceof String) {

                        Double signum = getSideSignum((String) sideValue);

                        side = signum != null ? signum : null;

                    }

                }

                double distance = ((Double) values.get(offsetParameter)) * side;

                DisposableIterator it;

                it = selected.fastIterator();

                int joinStyleValue = coerceJoinStyle(values.get(joinStyleParameter));

                Number equidistantOffsetsNumberValue = ((Number) values.get(this.equidistantOffsets));

                int equidistantOffsetsValue = equidistantOffsetsNumberValue != null ? equidistantOffsetsNumberValue.intValue() : ((Number)this.equidistantOffsets.getDefaultValue()).intValue();

                while (it.hasNext()) {

                    Feature feature = (Feature) it.next();

                    for (int c = 1; c <= equidistantOffsetsValue; c++) {

                        Geometry geom;

                        try {

                            geom = feature.getDefaultGeometry().offset(joinStyleValue, c * distance);

                        } catch (GeometryOperationNotSupportedException | GeometryOperationException e) {

                            throw new FinishServiceException(e);

                        }

                        if ((boolean) values.get(deleteOriginalGeometriesParameter) && c == 1) {

                            // Se sustituye la geometr?a original por la primera calculada

                            EditableFeature editableFeature

                                    = feature.getEditable();

                            editableFeature.setDefaultGeometry(geom);

                            ((EditingProviderServices) getProviderServices())

                                    .updateFeatureInFeatureStore(editableFeature,

                                            featureStore);

                        } else {

                            // Se crea una feature nueva copiando los valores de

                            // la feature original excepto aquellos que sean PK

                            EditingProviderServices editingProviderServices

                                    = (EditingProviderServices) getProviderServices();

                            EditableFeature editableFeature

                                    = editingProviderServices

                                            .getFeatureCopyWithoutUniqueIndex(featureStore,

                                                    feature);

                            editableFeature.setDefaultGeometry(geom);

                            editingProviderServices

                                    .insertFeatureIntoFeatureStore(editableFeature,

                                            featureStore);

                        }

                    }

                }

                it.dispose();

//                featureStore.getFeatureSelection().deselectAll();

            }

        } catch (DataException e) {

            throw new FinishServiceException(e);

        }

    }

    private Double getDirectedDistance(Point pointInLine, Point distancePoint, Line line)

            throws GeometryOperationNotSupportedException, GeometryOperationException {

        Double distance = distancePoint.distance(pointInLine);

        EditingProviderServices editingProviderServices

                = (EditingProviderServices) getProviderServices();

        Double angle = editingProviderServices.getAngle(pointInLine, distancePoint);

        double angleLine = editingProviderServices.getAngle(line.getVertex(0), line.getVertex(1));

        Double angleDifference = angle - angleLine;

        if (angleDifference < 0) {

            angleDifference += 2 * Math.PI;

        }

        if (angleDifference > Math.PI) {

            distance = -distance;

        }

        return distance;

    }

    @Override

    public Geometry finish() throws FinishServiceException {

        return null;

    }

    @Override

    public void start() throws StartServiceException {

        this.values = new HashMap<>();

        FeatureSelection selected = null;

        if (featureStore != null) {

            try {

                selected

                        = (FeatureSelection) featureStore.getFeatureSelection()

                                .clone();

            } catch (DataException e) {

                throw new StartServiceException(e);

            } catch (CloneNotSupportedException e) {

                // Do nothing

            }

            if ((selected != null) && (selected.getSelectedCount() > 0)) {

                values.put(selectionParameter, selected);

            }

        }

    }

    @Override

    public String getName() {

        return OffsetEditingProviderFactory.PROVIDER_NAME;

    }

    private int coerceJoinStyle(Object joinStyle) {

        if(joinStyle instanceof String) {

            switch ((String)joinStyle) {

                default:

                case ROUND:

                    return JOIN_STYLE_ROUND;

                case MITRE:

                    return Geometry.JOIN_STYLE_MITRE;

                case BEVEL:

                    return Geometry.JOIN_STYLE_BEVEL;

            }

        }

        return JOIN_STYLE_ROUND;

    }

    @Override

    public boolean isEnabled(EditingServiceParameter parameter) {

        if (parameter == joinStyleParameter) {

            return true;

        }

        if (parameter == equidistantOffsets) {

            return true;

        }

        return true;

    }

    private ISimpleTextSymbol getTextSymbol(){

        SymbologyManager symbologyManager = SymbologyLocator.getSymbologyManager();

        ISimpleTextSymbol textSymbol = symbologyManager.createSimpleTextSymbol();

        textSymbol.setFontSize(10);

        return textSymbol;

    }

    @Override

    public Object getValue(EditingServiceParameter parameter) {

        return values!=null?values.get(parameter):null;

    }

}