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.measure.lib.prov.measure;

import java.awt.geom.AffineTransform;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

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 org.gvsig.fmap.geom.GeometryLocator;

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.Curve;

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

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

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

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

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dispose.DisposableIterator;

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.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;

public class MeasureEditingProvider extends AbstractEditingProvider implements

    EditingProvider {

    private I18nManager i18nManager = ToolsLocator.getI18nManager();

    private EditingServiceParameter selectionParameter;

    private EditingServiceParameter firstPointParameter;

    private EditingServiceParameter secondPointParameter;

    private EditingServiceParameter deleteOriginalGeometriesParameter;

    private boolean deleteOriginalGeometries = false;

    private Map<EditingServiceParameter, Object> values;

    private Map<String, String> options;

    private FeatureStore featureStore;

    public MeasureEditingProvider(ProviderServices providerServices,

        DynObject parameters) {

        super(providerServices);

        this.featureStore =

            (FeatureStore) parameters

                .getDynValue(EditingProviderFactory.FEATURE_STORE_FIELD);

        this.selectionParameter =

            new DefaultEditingServiceParameter("selection",

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

        this.firstPointParameter =

            new DefaultEditingServiceParameter("first_point_of_measure_axis",

                i18nManager.getTranslation("first_point_of_measure_axis"),

                TYPE.POSITION);

        this.secondPointParameter =

            new DefaultEditingServiceParameter("second_point_of_measure_axis",

                i18nManager.getTranslation("second_point_of_measure_axis"),

                TYPE.POSITION);

        this.options = new LinkedHashMap<String, String>();

        options.put(i18nManager.getTranslation("short_yes"),

            "delete_original_geometries");

        options.put(i18nManager.getTranslation("short_no"),

            "keep_original_geometries");

        EditingProviderServices editingProviderServices =

            (EditingProviderServices) getProviderServices();

        String consoleMsg =

            editingProviderServices.makeConsoleMessage(

                "delete_original_geometries_question", options);

        this.deleteOriginalGeometriesParameter =

            new DefaultEditingServiceParameter("Delete original geometries",

                consoleMsg, options, TYPE.OPTION);

    }

    public DrawingStatus getDrawingStatus(Point mousePosition)

        throws DrawServiceException {

        DefaultDrawingStatus drawingStatus = new DefaultDrawingStatus();

        EditingProviderManager editingProviderManager =

            EditingProviderLocator.getProviderManager();

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

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

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

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

        FeatureSelection selected =

            (FeatureSelection) values.get(selectionParameter);

        try {

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

                Point p1 = (Point) values.get(firstPointParameter);

                if (p1 != null) {

                    Object p2Value = values.get(secondPointParameter);

                    Point p2 = null;

                    if ((p2Value != null) && (p2Value instanceof Point)) {

                        p2 = (Point) p2Value;

                    } else {

                        p2 = mousePosition;

                    }

                    Line line;

                    line =

                        GeometryLocator.getGeometryManager().createLine(

                            featureStore.getDefaultFeatureType()

                                .getDefaultGeometryAttribute().getGeomType()

                                .getSubType());

                    line.addVertex(p1);

                    line.addVertex(p2);

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

                    DisposableIterator it;

                    it = selected.fastIterator();

                    AffineTransform at;

                    try {

                        at = getSymmetryAffineTransform(p1, p2);

                    } catch (Exception e) {

                        throw new DrawServiceException(e);

                    }

                    while (it.hasNext()) {

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

                        Geometry transformedGeometry = feat.getDefaultGeometry().cloneGeometry();

                        transformedGeometry.transform(at);

                        ISymbol symbol=null;

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

                            symbol = lineSymbolEditing;

                        } 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++) {

                                drawingStatus.addStatus(((Aggregate)transformedGeometry).getPrimitiveAt(i), symbol, "");

                            }

                        } else {

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

                        }

                    }

                    it.dispose();

                }

                return drawingStatus;

            }

        } catch (Exception e) {

            throw new DrawServiceException(e);

        }

        return null;

    }

    private AffineTransform getSymmetryAffineTransform(Point axisP1,

        Point axisP2) throws GeometryOperationNotSupportedException,

        GeometryOperationException {

        AffineTransform translate =

            AffineTransform

                .getTranslateInstance(-axisP1.getX(), -axisP1.getY());

        EditingProviderServices editingProviderServices =

            (EditingProviderServices) getProviderServices();

        Double angle = -editingProviderServices.getAngle(axisP1, axisP2);

        AffineTransform rotate = AffineTransform.getRotateInstance(angle);

        AffineTransform symmetry = new AffineTransform(1, 0, 0, -1, 0, 0);

        AffineTransform inverseRotate =

            AffineTransform.getRotateInstance(-angle);

        AffineTransform inverseTranslate =

            AffineTransform.getTranslateInstance(axisP1.getX(), axisP1.getY());

        AffineTransform at = new AffineTransform(translate);

        at.preConcatenate(rotate);

        at.preConcatenate(symmetry);

        at.preConcatenate(inverseRotate);

        at.preConcatenate(inverseTranslate);

        return at;

    }

    public EditingServiceParameter next() {

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

            return this.selectionParameter;

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

            return this.firstPointParameter;

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

            return this.secondPointParameter;

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

            return this.deleteOriginalGeometriesParameter;

        }

        return null;

    }

    public void stop() {

        values.clear();

    }

    private void validateAndInsertValue(EditingServiceParameter param,

        Object value) throws InvalidEntryException {

        if (param == selectionParameter) {

            if (value instanceof FeatureSelection) {

                values.put(param, value);

                return;

            }

        } else if (param == firstPointParameter) {

            if (value instanceof Point) {

                values.put(param, value);

                return;

            }

        } else if (param == secondPointParameter) {

            if (value instanceof Point) {

                values.put(param, value);

                return;

            }

        } else if (param == deleteOriginalGeometriesParameter) {

            if (value instanceof String) {

                if (((String) value).trim().equalsIgnoreCase(

                    i18nManager.getTranslation("short_yes"))) {

                    deleteOriginalGeometries = true;

                } else if (((String) value).trim().equalsIgnoreCase(

                    i18nManager.getTranslation("short_no"))) {

                    deleteOriginalGeometries = false;

                } else {

                    throw new InvalidEntryException(null);

                }

                values.put(param, value);

            }

        }

    }

    public List<EditingServiceParameter> getParameters() {

        List<EditingServiceParameter> list =

            new ArrayList<EditingServiceParameter>();

        list.add(selectionParameter);

        list.add(firstPointParameter);

        list.add(secondPointParameter);

        return list;

    }

    public void setValue(Object value) throws InvalidEntryException {

        EditingServiceParameter param = next();

        validateAndInsertValue(param, value);

    }

    public void finishAndStore() throws FinishServiceException {

        FeatureSelection selected =

            (FeatureSelection) values.get(selectionParameter);

        try {

            if (!selected.isEmpty()) {

                Point p1 = (Point) values.get(firstPointParameter);

                Point p2 = (Point) values.get(secondPointParameter);

                if ((p1 != null) && (p2 != null)) {

                    AffineTransform at;

                    try {

                        at = getSymmetryAffineTransform(p1, p2);

                    } catch (GeometryOperationNotSupportedException e) {

                        throw new FinishServiceException(e);

                    } catch (GeometryOperationException e) {

                        throw new FinishServiceException(e);

                    }

                    DisposableIterator it;

                    it = selected.fastIterator();

                    while (it.hasNext()) {

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

                        Geometry geom =

                            feature.getDefaultGeometry().cloneGeometry();

                        geom.transform(at);

                        if (this.deleteOriginalGeometries) {

                            // Se sustituye la geometr?a original por la

                            // 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

                                    .getFeatureCopyWithoutPK(featureStore,

                                        feature);

                            editableFeature.setDefaultGeometry(geom);

                            editingProviderServices

                                .insertFeatureIntoFeatureStore(editableFeature,

                                    featureStore);

                        }

                    }

                    it.dispose();

                    featureStore.getFeatureSelection().deselectAll();

                }

            }

        } catch (DataException e) {

            throw new FinishServiceException(e);

        }

    }

    public Geometry finish() throws FinishServiceException {

        return null;

    }

    public void start() throws StartServiceException {

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

        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);

            }

        }

    }

    public String getName() {

        return MeasureEditingProviderFactory.PROVIDER_NAME;

    }

}