| gvSIG desktop 1

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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.

 *

 */

package org.gvsig.editing.gui.cad;

import java.awt.event.MouseEvent;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.util.ArrayList;

import java.util.List;

import org.cresques.cts.ICoordTrans;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.andami.ui.mdiManager.IWindow;

import org.gvsig.app.project.documents.view.gui.DefaultViewPanel;

import org.gvsig.editing.CADExtension;

import org.gvsig.editing.gui.cad.exception.CommandException;

import org.gvsig.editing.layers.VectorialLayerEdited;

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

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

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.FeatureSet;

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

import org.gvsig.fmap.dal.feature.exception.CreateGeometryException;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.Geometry.SUBTYPES;

import org.gvsig.fmap.geom.Geometry.TYPES;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

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

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

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

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

import org.gvsig.fmap.geom.exception.CreateEnvelopeException;

import org.gvsig.fmap.geom.handler.Handler;

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

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

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

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

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

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

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

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

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.geom.type.GeometryType;

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

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

import org.gvsig.fmap.geom.util.UtilFunctions;

import org.gvsig.fmap.mapcontext.layers.SpatialCache;

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

import org.gvsig.fmap.mapcontrol.MapControlDrawer;

import org.gvsig.fmap.mapcontrol.MapControlLocator;

import org.gvsig.fmap.mapcontrol.MapControlManager;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.utils.console.JConsole;

/**

 *

 * @author Vicente Caballero Navarro

 */

public abstract class DefaultCADTool implements CADTool, Geometry.TYPES,

    Geometry.SUBTYPES {

    private static final Logger LOG = LoggerFactory

        .getLogger(DefaultCADTool.class);

    /**

     * Reference to the MapControl library manager, used to manage

     * tools.

     */

    protected MapControlManager mapControlManager = MapControlLocator

        .getMapControlManager();

    protected GeometryManager geomManager = GeometryLocator

        .getGeometryManager();

    private CADToolAdapter cadToolAdapter;

    private String question;

    private String[] currentdescriptions;

    private String tool = "selection";

    private DefaultCADTool previousTool;

    private List<Geometry> temporalCache = new ArrayList<Geometry>();

    private GeometryType[] supportedTypes;

    /**

     * Crea un nuevo DefaultCADTool.

     */

    public DefaultCADTool() {

        loadGeometryTypes();

    }

    protected void loadGeometryTypes() {

        int[] types = getSupportedGeometryTypes();

        if (types == null) {

            supportedTypes = new GeometryType[0];

        }

        else {

            supportedTypes = new GeometryType[types.length];

            for (int i = 0; i < types.length; i++) {

                supportedTypes[i] = loadGeometryType(types[i], GEOM2D);

            }

        }

    }

    public void addTemporalCache(Geometry geom) {

        temporalCache.add(geom);

        try {

            insertSpatialCache(geom);

        } catch (CreateEnvelopeException e) {

            LOG.error("Error adding the spatial cache", e);

        }

    }

    public void clearTemporalCache() {

        Geometry[] geoms =

            temporalCache.toArray(new Geometry[temporalCache.size()]);

        for (int i = 0; i < geoms.length; i++) {

            try {

                removeSpatialCache(geoms[i]);

            } catch (CreateEnvelopeException e) {

                LOG.error("Error removing the temporal cache", e);

            }

        }

        temporalCache.clear();

    }

    private void insertSpatialCache(Geometry geom)

        throws CreateEnvelopeException {

        VectorialLayerEdited vle = getVLE();

        SpatialCache spatialCache =

            ((FLyrVect) vle.getLayer()).getSpatialCache();

        Envelope r = geom.getEnvelope();

        if (geom.getType() == Geometry.TYPES.POINT) {

            r =

                geomManager.createEnvelope(r.getMinimum(0), r.getMinimum(1),

                    r.getMinimum(0) + 1, r.getMinimum(1) + 1, SUBTYPES.GEOM2D);

        }

        spatialCache.insert(r, geom);

    }

    private void removeSpatialCache(Geometry geom)

        throws CreateEnvelopeException {

        VectorialLayerEdited vle = getVLE();

        SpatialCache spatialCache =

            ((FLyrVect) vle.getLayer()).getSpatialCache();

        Envelope r = geom.getEnvelope();

        if (geom.getType() == Geometry.TYPES.POINT) {

            r =

                geomManager.createEnvelope(r.getMinimum(0), r.getMinimum(1),

                    r.getMinimum(0) + 1, r.getMinimum(1) + 1, SUBTYPES.GEOM2D);// Rectangle2D.Double(r.getX(),r.getY(),1,1);

        }

        spatialCache.remove(r, geom);

    }

    /**

     * DOCUMENT ME!

     *

     * @param feature

     */

    public void draw(Geometry geometry, Feature feature) {

        if (geometry != null) {

            getCadToolAdapter().getMapControl().getMapControlDrawer()

                .draw(geometry, mapControlManager.getGeometrySelectionSymbol());

        }

    }

    /**

     * It draw the selected geometries from the initial point until a new

     * point.

     *

     * @param mapControlDrawer

     *            The drawer.

     * @param firstPoint

     *            The initial point.

     * @param x

     *            The X coordinate of the mouse.

     * @param y

     *            The Y coordinate of the mouse.

     */

    protected void drawSelectedGeometries(MapControlDrawer mapControlDrawer,

        Point2D firstPoint, double x, double y) {

        FeatureStore featureStore = null;

        DisposableIterator iterator = null;

        ICoordTrans ct = getVLE().getLayer().getCoordTrans();

        try {

            featureStore = getVLE().getFeatureStore();

            FeatureSet selection = (FeatureSet) featureStore.getSelection();

            iterator = selection.fastIterator();

            while (iterator.hasNext()) {

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

                Geometry geometry =

                    (feature.getDefaultGeometry()).cloneGeometry();

                if (geometry == null) {

                    continue;

                }

                Point2D currentPoint = new Point2D.Double(x, y);

                if (ct != null) {

                    currentPoint = ct.getInverted().convert(currentPoint, null);

                }

                UtilFunctions.moveGeom(geometry, currentPoint.getX()

                    - firstPoint.getX(),

                    currentPoint.getY() - firstPoint.getY());

                mapControlDrawer.draw(geometry,

                    mapControlManager.getGeometrySelectionSymbol());

            }

        } catch (Exception e) {

            LOG.error("Retrieving the selection", e);

        } finally {

            if (iterator != null) {

                iterator.dispose();

            }

        }

    }

    /**

     * It draw the selected geometries from the initial point until a new

     * point.

     *

     * @param mapControlDrawer

     *            The drawer.

     * @param firstPoint

     *            The initial point.

     * @param x

     *            The X coordinate of the mouse.

     * @param y

     *            The Y coordinate of the mouse.

     * @param affineTransform

     *            The transformation to apply

     */

    protected void drawAndRotateSelectedGeometries(

        MapControlDrawer mapControlDrawer, Point2D firstPoint, double x,

        double y) {

        FeatureStore featureStore = null;

        DisposableIterator iterator = null;

        try {

            Point2D lastPoint = new Point2D.Double(x, y);

            double w = lastPoint.getX() - firstPoint.getX();

            double h = lastPoint.getY() - firstPoint.getY();

            featureStore = getVLE().getFeatureStore();

            FeatureSet selection = (FeatureSet) featureStore.getSelection();

            iterator = selection.fastIterator();

            while (iterator.hasNext()) {

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

                Geometry geometry =

                    (feature.getDefaultGeometry()).cloneGeometry();

                if (geometry == null) {

                    continue;

                }

                UtilFunctions.rotateGeom(geometry, -Math.atan2(w, h)

                    + (Math.PI / 2), firstPoint.getX(), firstPoint.getY());

                mapControlDrawer.draw(geometry,

                    mapControlManager.getGeometrySelectionSymbol());

            }

        } catch (Exception e) {

            LOG.error("Retrieving the selection", e);

        } finally {

            if (iterator != null) {

                iterator.dispose();

            }

        }

    }

    public void setCadToolAdapter(CADToolAdapter cta) {

        cadToolAdapter = cta;

    }

    public CADToolAdapter getCadToolAdapter() {

        return cadToolAdapter;

    }

    public VectorialLayerEdited getVLE() {

        return (VectorialLayerEdited) CADExtension.getEditionManager()

            .getActiveLayerEdited();

    }

    public Feature insertGeometry(Geometry geometry, Feature feature) {

        VectorialLayerEdited vle = getVLE();

        try {

            FeatureStore featureStore =

                ((FLyrVect) vle.getLayer()).getFeatureStore();

            EditableFeature eFeature =

                featureStore.createNewFeature(

                    featureStore.getDefaultFeatureType(), feature);

            eFeature.setGeometry(featureStore.getDefaultFeatureType()

                .getDefaultGeometryAttributeName(), geometry);

            featureStore.insert(eFeature);

            // drawToImage(featureStore, vle, eFeature);

            insertSpatialCache(geometry);

            getCadToolAdapter().getMapControl().getMapControlDrawer()

                .draw(geometry, mapControlManager.getGeometrySelectionSymbol());

            return eFeature;

        } catch (ReadException e) {

            NotificationManager.addError(e.getMessage(), e);

            return null;

        } catch (DataException e) {

            NotificationManager.addError(e.getMessage(), e);

            return null;

        } catch (CreateEnvelopeException e) {

            NotificationManager.addError(e.getMessage(), e);

            return null;

        }

    }

    public Feature insertAndSelectGeometry(Geometry geometry) {

        Feature feature = null;

        try {

            FeatureStore featureStore = getVLE().getFeatureStore();

            featureStore.beginComplexNotification();

            featureStore.beginEditingGroup(getName());

            FeatureSelection newSelection =

                featureStore.createFeatureSelection();

            feature = insertGeometry(geometry);

            newSelection.select(feature);

            featureStore.setSelection(newSelection);

            featureStore.endEditingGroup();

            featureStore.endComplexNotification();

        } catch (DataException e) {

            NotificationManager.showMessageError("insertAndSelectGeoemtry", e);

        }

        return feature;

    }

    public Feature insertGeometry(Geometry geometry) {

        VectorialLayerEdited vle = getVLE();

        try {

            FeatureStore featureStore =

                ((FLyrVect) vle.getLayer()).getFeatureStore();

            EditableFeature eFeature = featureStore.createNewFeature(true);

            //Reproject the geometry

            Geometry insertedGeometry = geometry;

            if (getVLE().getLayer().getCoordTrans() != null){

                insertedGeometry = insertedGeometry.cloneGeometry();

                insertedGeometry.reProject(getVLE().getLayer().getCoordTrans().getInverted());

            }

            eFeature.setGeometry(featureStore.getDefaultFeatureType()

                .getDefaultGeometryAttributeName(), insertedGeometry);

            featureStore.insert(eFeature);

            insertSpatialCache(insertedGeometry);

            draw(insertedGeometry, eFeature);

            return eFeature;

        } catch (ReadException e) {

            NotificationManager.addError(e.getMessage(), e);

            return null;

        } catch (DataException e) {

            NotificationManager.addError(e.getMessage(), e);

            return null;

        } catch (CreateEnvelopeException e) {

            NotificationManager.addError(e.getMessage(), e);

            return null;

        }

    }

    /**

     * Devuelve la cadena que corresponde al estado en el que nos encontramos.

     *

     * @return Cadena para mostrar por consola.

     */

    public String getQuestion() {

        return question;

    }

    /**

     * Actualiza la cadena que corresponde al estado actual.

     *

     * @param s

     *            Cadena que aparecer� en consola.

     */

    public void setQuestion(String s) {

        question = s;

    }

    /**

     * Provoca un repintado "soft" de la capa activa en edici�n. Las capas por

     * debajo de ella no se dibujan de verdad, solo se dibuja la que est� en

     * edici�n y las que est�n por encima de ella en el TOC.

     */

    public void refresh() {

        getCadToolAdapter().getMapControl().rePaintDirtyLayers();

    }

    public void drawHandlers(MapControlDrawer renderer, ArrayList selectedRows,

        AffineTransform at) {

        FeatureSet selection = null;

        DisposableIterator iterator = null;

        try {

            selection =

                (FeatureSet) ((FLyrVect) getVLE().getLayer()).getFeatureStore()

                    .getSelection();

            iterator = selection.fastIterator();

            while (iterator.hasNext()) {

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

                Geometry ig = (feature.getDefaultGeometry()).cloneGeometry();

                if (ig == null) {

                    continue;

                }

                Handler[] handlers = ig.getHandlers(Geometry.SELECTHANDLER);

                renderer.drawHandlers(handlers, at,

                    mapControlManager.getGeometrySelectionSymbol());

            }

        } catch (ReadException e) {

            NotificationManager.addError(e.getMessage(), e);

        } catch (DataException e) {

            NotificationManager.addError(e.getMessage(), e);

        } finally {

            if (iterator != null) {

                iterator.dispose();

            }

        }

    }

    public void setDescription(String[] currentdescriptions) {

        this.currentdescriptions = currentdescriptions;

    }

    public String[] getDescriptions() {

        return currentdescriptions;

    }

    public void end() {

        CADExtension.setCADTool("_selection", true);

        PluginServices.getMainFrame().setSelectedTool("_selection");

        CADTool cadtool = CADExtension.getCADTool();

        cadtool.setPreviosTool(this);

    }

    public void init() {

        // Nothing to do

    }

    protected ArrayList getSelectedHandlers() {

        VectorialLayerEdited vle = getVLE();

        ArrayList selectedHandlers = vle.getSelectedHandler();

        return selectedHandlers;

    }

    public void clearSelection() throws DataException {

        VectorialLayerEdited vle = getVLE();

        FeatureSelection selection = null;

        selection =

            (FeatureSelection) ((FLyrVect) vle.getLayer()).getFeatureStore()

                .getSelection();

        // ArrayList selectedRow = vle.getSelectedRow();

        ArrayList selectedHandlers = vle.getSelectedHandler();

        selection.deselectAll();

        selectedHandlers.clear();

        // VectorialEditableAdapter vea = vle.getVEA();

        // FBitSet selection = vea.getSelection();

        // selection.clear();

        vle.setSelectionImage(null);

        vle.setHandlersImage(null);

    }

    public String getNextTool() {

        return tool;

    }

    public void setNextTool(String tool) {

        this.tool = tool;

    }

    public boolean changeCommand(String name) throws CommandException {

        CADTool[] cadtools = CADExtension.getCADTools();

        for (int i = 0; i < cadtools.length; i++) {

            CADTool ct = cadtools[i];

            if (name.equalsIgnoreCase(ct.getName())

                || name.equalsIgnoreCase(ct.toString())) {

                int type = Geometry.TYPES.POINT;

                try {

                    type = ((FLyrVect) getVLE().getLayer()).getShapeType();

                } catch (ReadException e) {

                    throw new CommandException(e);

                }

                if (ct.isApplicable(type)) {

                    getCadToolAdapter().setCadTool(ct);

                    ct.init();

                    DefaultViewPanel vista =

                        (DefaultViewPanel) PluginServices.getMDIManager()

                            .getActiveWindow();

                    vista.getConsolePanel().addText("\n" + ct.getName(),

                        JConsole.COMMAND);

                    String question = ct.getQuestion();

                    vista.getConsolePanel().addText(

                        "\n" + "#" + question + " > ", JConsole.MESSAGE);

                    return true;

                }

                throw new CommandException(name);

            }

        }

        return false;

    }

    public boolean isApplicable(int shapeType) {

        GeometryType type = loadGeometryType(shapeType, GEOM2D);

        return isApplicable(type);

    }

    public boolean isApplicable(GeometryType geometryType) {

        if (supportedTypes != null) {

            for (int i = 0; i < supportedTypes.length; i++) {

                if (supportedTypes[i].isTypeOf(geometryType)) {

                    return true;

                }

            }

        }

        return false;

    }

    /**

     * Returns the geometry types supported by the tool.

     *

     * @return the supported geometry types

     */

    protected GeometryType[] getSupportedTypes() {

        return supportedTypes;

    }

    /**

     * Returns the list of Geometry types supported by this tool. If any

     * Geometry type is supported, just return null.

     *

     * @return the list of Geometry types supported by this tool

     */

    protected int[] getSupportedGeometryTypes() {

        return null;

    }

    protected GeometryType loadGeometryType(int type, int subtype) {

        try {

            return GeometryLocator.getGeometryManager().getGeometryType(type,

                subtype);

        } catch (GeometryTypeNotSupportedException e) {

            throw new RuntimeException(

                "Error getting the Geometry type with type = " + type

                    + ", subtype = " + subtype, e);

        } catch (GeometryTypeNotValidException e) {

            throw new RuntimeException(

                "Error getting the Geometry type with type = " + type

                    + ", subtype = " + subtype, e);

        }

    }

    public abstract String toString();

    public void throwValueException(String s, double d) {

        IWindow window = PluginServices.getMDIManager().getActiveWindow();

        if (window instanceof DefaultViewPanel) {

            ((DefaultViewPanel) window).getConsolePanel().addText(

                s + " : " + d, JConsole.ERROR);

        }

    }

    public void throwOptionException(String s, String o) {

        IWindow window = PluginServices.getMDIManager().getActiveWindow();

        if (window instanceof DefaultViewPanel) {

            ((DefaultViewPanel) window).getConsolePanel().addText(

                s + " : " + o, JConsole.ERROR);

        }

    }

    public void throwPointException(String s, double x, double y) {

        IWindow window = PluginServices.getMDIManager().getActiveWindow();

        if (window instanceof DefaultViewPanel) {

            ((DefaultViewPanel) window).getConsolePanel().addText(

                s + " : " + " X = " + x + ", Y = " + y, JConsole.ERROR);

        }

    }

    public void setPreviosTool(DefaultCADTool tool) {

        previousTool = tool;

    }

    public void restorePreviousTool() {

        CADExtension.setCADTool(previousTool.toString(), true);

        PluginServices.getMainFrame().setSelectedTool(previousTool.toString());

    }

    public void endTransition(double x, double y, MouseEvent e) {

        // Nothing to do

    }

    /**

     * Create a curve. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @return

     *         The Curve

     */

    protected Curve createCurve() {

        try {

            return (Curve) geomManager.create(TYPES.CURVE, getSubType());

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating curve", new CreateGeometryException(

                TYPES.CURVE, getSubType(), e));

        }

        return null;

    }

    /**

     * Create a multicurve. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @return

     *         The MultiCurve

     */

    protected MultiCurve createMultiCurve() {

        try {

            return (MultiCurve) geomManager.create(TYPES.MULTICURVE,

                getSubType());

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating multicurve", new CreateGeometryException(

                TYPES.MULTICURVE, getSubType(), e));

        }

        return null;

    }

    /**

     * Create an {@link OrientablePrimitive}. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param geometryType

     *            a type of a OrientablePrimitive.

     * @return

     *         The {@link OrientablePrimitive}

     */

    protected OrientablePrimitive createOrientablePrimitive(int geometryType) {

        try {

            return (OrientablePrimitive) geomManager.create(geometryType,

                getSubType());

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating curve", new CreateGeometryException(

                TYPES.CURVE, getSubType(), e));

        }

        return null;

    }

    /**

     * Create an envelope like a curve from two points.

     * If there is an error return <code>null</code> and add the error to the

     * log.

     *

     * @param firstPoint

     *            first point

     * @param secondPoint

     *            second point

     * @return

     *         the curve

     */

    protected Curve createEnvelopeLikeCurve(Point2D firstPoint,

        Point2D secondPoint) {

        try {

            Curve curve = (Curve) geomManager.create(TYPES.CURVE, getSubType());

            curve.addMoveToVertex(createPoint(firstPoint.getX(),

                firstPoint.getY()));

            curve.addVertex(createPoint(secondPoint.getX(), firstPoint.getY()));

            curve

                .addVertex(createPoint(secondPoint.getX(), secondPoint.getY()));

            curve.addVertex(createPoint(firstPoint.getX(), secondPoint.getY()));

            curve.addVertex(createPoint(firstPoint.getX(), firstPoint.getY()));

            return curve;

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating curve", new CreateGeometryException(

                TYPES.CURVE, getSubType(), e));

        }

        return null;

    }

    /**

     * Create a curve from a GeneralPath. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param gpx

     *            The GeneralPath

     * @return

     *         The Curve

     */

    protected Curve createCurve(GeneralPathX gpx) {

        Curve curve = null;

        try {

            curve = (Curve) geomManager.create(TYPES.CURVE, getSubType());

            curve.setGeneralPath(gpx);

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating curve", new CreateGeometryException(

                TYPES.CURVE, getSubType(), e));

        }

        return curve;

    }

    /**

     * Create a surface. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @return

     *         The Surface

     */

    protected Surface createSurface() {

        try {

            return (Surface) geomManager.create(TYPES.SURFACE, getSubType());

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating surface", new CreateGeometryException(

                TYPES.SURFACE, getSubType(), e));

        }

        return null;

    }

    /**

     * Create a multisurface. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @return

     *         The MultiSurface

     */

    protected MultiSurface createMultiSurface() {

        try {

            return (MultiSurface) geomManager.create(TYPES.MULTISURFACE,

                getSubType());

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error(

                "Error creating multisurface",

                new CreateGeometryException(TYPES.MULTISURFACE, getSubType(), e));

        }

        return null;

    }

    /**

     * Create a surface from a GeneralPath. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param gpx

     *            The general path

     * @return

     *         The Surface

     */

    protected Surface createSurface(GeneralPathX gpx) {

        Surface surface = null;

        try {

            surface = (Surface) geomManager.create(TYPES.SURFACE, getSubType());

            surface.setGeneralPath(gpx);

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating surface", new CreateGeometryException(

                TYPES.SURFACE, getSubType(), e));

        }

        return surface;

    }

    /**

     * Create a curve point. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param p1

     *            The AWT point

     * @return

     *         The gvSIG point

     */

    protected Point createPoint(Point2D p1) {

        return createPoint(p1.getX(), p1.getY());

    }

    /**

     * Create point. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param x

     *            The X coordinate

     * @param y

     *            The y coordinate

     * @return

     *         The Point

     */

    protected Point createPoint(double x, double y) {

        Point point = null;

        try {

            point = (Point) geomManager.create(TYPES.POINT, getSubType());

            point.setX(x);

            point.setY(y);

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating point with x=" + x + ", y=" + y,

                new CreateGeometryException(TYPES.POINT, getSubType(), e));

        }

        return point;

    }

    /**

     * Create a multipoint. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param x

     *            The X coordinate

     * @param y

     *            The y coordinate

     * @return

     *         The MultiPoint

     */

    protected MultiPoint createMultiPoint() {

        try {

            return (MultiPoint) geomManager.create(TYPES.MULTIPOINT,

                getSubType());

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating multipoint", new CreateGeometryException(

                TYPES.MULTIPOINT, getSubType(), e));

            return null;

        }

    }

    /**

     * Create an Arc. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param p1

     * @param p2

     * @param p3

     * @return

     *         The arc

     */

    protected Arc createArc(Point2D p1, Point2D p2, Point2D p3) {

        return createArc(createPoint(p1), createPoint(p2), createPoint(p3));

    }

    /**

     * Create an arc. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param p1

     * @param p2

     * @param p3

     * @return

     *         The arc

     */

    protected Arc createArc(Point p1, Point p2, Point p3) {

        Arc arc = null;

        if (p1.equals(p2) || p2.equals(p3) || p1.equals(p3)) {

            return null;

        }

        try {

            arc = (Arc) geomManager.create(TYPES.ARC, getSubType());

            arc.setPoints(p1, p2, p3);

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating arc with p1=" + p1, ", p2=" + p2

                + ", p3=" + p3, new CreateGeometryException(TYPES.ARC,

                getSubType(), e));

        }

        return arc;

    }

    /**

     * Create a circle. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param p1

     * @param p2

     * @param p3

     * @return

     *         The Circle

     */

    protected Circle createCircle(Point p1, Point p2, Point p3) {

        Circle circle = null;

        try {

            circle = (Circle) geomManager.create(TYPES.CIRCLE, getSubType());

            circle.setPoints(p1, p2, p3);

        } catch (org.gvsig.fmap.geom.exception.CreateGeometryException e) {

            LOG.error("Error creating circle with p1=" + p1 + " p2=" + p2

                + ", p3=" + p3, new CreateGeometryException(TYPES.CIRCLE,

                getSubType(), e));

        }

        return circle;

    }

    /**

     * Create a circle from a GeneralPath. If there is an

     * error return <code>null</code> and add the error

     * to the log

     *

     * @param p1

     * @param p2

     * @return

     *         The circle

     */

    protected Circle createCircle(Point2D p1, Point2D p2) {

        return createCircle(createPoint(p1), createPoint(p2));

    }

    /**

     * Create a circle. If there is an

     * error return <code>null</code> and add the error

     * to the log