| gvSIG desktop 1

		<!--extension class-name="com.iver.cit.gvsig.ExtendExtension"

			description="Extensi?n encargada de alargar geometr?as en una capa en edici?n."

			active="true">

			<menu text="geometry/modify/extend" action-command="_extend" icon="edition-modify-geometry-extend"/>

			<tool-bar name="modificar" position="31">

				<selectable-tool icon="edition-modify-geometry-extend" action-command="_extend" tooltip="extend" group="vista" position="13"/>

			</tool-bar>

		</extension-->

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig;

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

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

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

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

import org.gvsig.fmap.mapcontrol.MapControl;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.plugins.Extension;

import com.iver.cit.gvsig.gui.cad.tools.ExtendCADTool;

import com.iver.cit.gvsig.layers.VectorialLayerEdited;

import com.iver.cit.gvsig.project.documents.view.gui.View;

/**

 * Extensi?n que gestiona el alargar una geometr?a.

 *

 * @author Vicente Caballero Navarro

 */

public class ExtendExtension extends Extension {

	private View view;

	private MapControl mapControl;

	private ExtendCADTool extend;

	/**

	 * @see com.iver.andami.plugins.IExtension#initialize()

	 */

	public void initialize() {

		extend=new ExtendCADTool();

		CADExtension.addCADTool("_extend",extend);

		registerIcons();

	}

	private void registerIcons(){

		PluginServices.getIconTheme().registerDefault(

				"edition-modify-geometry-extend",

				this.getClass().getClassLoader().getResource("images/Extend.png")

			);

	}

	/**

	 * @see com.iver.andami.plugins.IExtension#execute(java.lang.String)

	 */

	public void execute(String s) {

		CADExtension.initFocus();

		if (s.equals("_extend")) {

        	CADExtension.setCADTool(s,true);

        }

		CADExtension.getEditionManager().setMapControl(mapControl);

		CADExtension.getCADToolAdapter().configureMenu();

	}

	/**

	 * @see com.iver.andami.plugins.IExtension#isEnabled()

	 */

	public boolean isEnabled() {

		try {

			if (EditionUtilities.getEditionStatus() == EditionUtilities.EDITION_STATUS_ONE_VECTORIAL_LAYER_ACTIVE_AND_EDITABLE) {

				view = (View) PluginServices.getMDIManager().getActiveWindow();

				mapControl = view.getMapControl();

				EditionManager em=CADExtension.getEditionManager();

				if (em.getActiveLayerEdited()==null)

					return false;

				VectorialLayerEdited vle=(VectorialLayerEdited)em.getActiveLayerEdited();

				if (((FeatureSelection)vle.getFeatureStore().getSelection()).getSize()<1)

					return false;

				FLyrVect lv=(FLyrVect)vle.getLayer();

//				ArrayList selectedRows=vle.getSelectedRow();

//				if (selectedRows.size()<1) {

//					return false;

//				}

				if (extend.isApplicable(lv.getShapeType())){

					return true;

				}

			}

		} catch (ReadException e) {

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

		} catch (DataException e) {

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

		}

		return false;

	}

	/**

	 * @see com.iver.andami.plugins.IExtension#isVisible()

	 */

	public boolean isVisible() {

		if (EditionUtilities.getEditionStatus() == EditionUtilities.EDITION_STATUS_ONE_VECTORIAL_LAYER_ACTIVE_AND_EDITABLE)

			return true;

		return false;

	}

}

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig.gui.cad.tools;

import java.awt.Graphics;

import java.awt.event.InputEvent;

import java.awt.geom.PathIterator;

import java.awt.geom.Point2D;

import java.util.ArrayList;

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

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

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

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.geom.Geometry;

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

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

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

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.cit.gvsig.CADExtension;

import com.iver.cit.gvsig.gui.cad.DefaultCADTool;

import com.iver.cit.gvsig.gui.cad.exception.CommandException;

import com.iver.cit.gvsig.gui.cad.tools.smc.ExtendCADToolContext;

import com.iver.cit.gvsig.gui.cad.tools.smc.ExtendCADToolContext.ExtendCADToolState;

import com.iver.cit.gvsig.layers.VectorialLayerEdited;

/**

 * DOCUMENT ME!

 *

 * @author Vicente Caballero Navarro

 */

public class ExtendCADTool extends DefaultCADTool {

	private ExtendCADToolContext _fsm;

	/**

	 * Crea un nuevo ExtendCADTool.

	 */

	public ExtendCADTool() {

	}

	/**

	 * M?todo de incio, para poner el c?digo de todo lo que se requiera de una

	 * carga previa a la utilizaci?n de la herramienta.

	 */

	public void init() {

		_fsm = new ExtendCADToolContext(this);

	}

	/*

	 * (non-Javadoc)

	 *

	 * @see com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap.layers.FBitSet,

	 *      double, double)

	 */

	public void transition(double x, double y, InputEvent event) {

		_fsm.addPoint(x, y, event);

	}

	/*

	 * (non-Javadoc)

	 *

	 * @see com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap.layers.FBitSet,

	 *      double)

	 */

	public void transition(double d) {

		_fsm.addValue(d);

	}

	/*

	 * (non-Javadoc)

	 *

	 * @see com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap.layers.FBitSet,

	 *      java.lang.String)

	 */

	public void transition(String s) throws CommandException {

		if (!super.changeCommand(s)) {

			_fsm.addOption(s);

		}

	}

	/**

	 * DOCUMENT ME!

	 */

	public void selection() {

		FeatureSet selection = null;

		try {

			selection = (FeatureSet) getVLE().getFeatureStore().getSelection();

			if (selection.getSize() == 0

					&& !CADExtension

							.getCADTool()

							.getClass()

							.getName()

							.equals(

									"com.iver.cit.gvsig.gui.cad.tools.SelectionCADTool")) {

				CADExtension.setCADTool("_selection", false);

				((SelectionCADTool) CADExtension.getCADTool())

						.setNextTool("_extend");

			}

		} catch (ReadException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (DataException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

	/**

	 * Equivale al transition del prototipo pero sin pasarle como par?metro el

	 * editableFeatureSource que ya estar? creado.

	 *

	 * @param x

	 *            par?metro x del punto que se pase en esta transici?n.

	 * @param y

	 *            par?metro y del punto que se pase en esta transici?n.

	 */

	public void addPoint(double x, double y, InputEvent event) {

		ExtendCADToolState actualState = (ExtendCADToolState) _fsm

				.getPreviousState();

		String status = actualState.getName();

		if (status.equals("Extend.SelectGeometryToExtend")) {

			VectorialLayerEdited vle = getVLE();

			FeatureStore featureStore = null;

			DisposableIterator iterator = null;

			try {

				featureStore = vle.getFeatureStore();

				featureStore.beginEditingGroup(getName());

				iterator = ((FeatureSelection) featureStore.getSelection())

						.iterator();

				// ArrayList selectedRow=getSelectedRows();

				ArrayList selectedRowAux = new ArrayList();

				// for (int i=0;i<selectedRow.size();i++) {

				// selectedRowAux.addAll(selectedRow);

				// }

				// selection();

				vle.selectWithPoint(x, y, false);

				// ArrayList newSelectedRow=new ArrayList();

				while (iterator.hasNext()) {

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

					// }

					// for (int i=0;i<selectedRowAux.size();i++) {

					// IRowEdited edRow1 = (IRowEdited) selectedRowAux.get(i);

					// DefaultFeature fea1 = (DefaultFeature)

					// edRow1.getLinkedRow().cloneRow();

					Geometry geometry1 = (feature

							.getDefaultGeometry()).cloneGeometry();

					// IRowEdited edRow2 = (IRowEdited) newSelectedRow.get(i);

					// DefaultFeature fea2 = (DefaultFeature)

					// edRow2.getLinkedRow().cloneRow();

					Geometry geometry2 = (feature

							.getDefaultGeometry()).cloneGeometry();

					// for (int j=0;j<newSelectedRow.size();j++) {

					// if (geometry1 instanceof FPolygon2D) {

					EditableFeature eFeature = feature.getEditable();

					eFeature.setGeometry(featureStore.getDefaultFeatureType()

							.getDefaultGeometryAttributeName(),

							intersectsGeometry(geometry2, geometry1));

					// fea2.setGeometry(intersectsGeometry(geometry2,geometry1));

					// }

					// }

					featureStore.update(eFeature);

					// vea.modifyRow(edRow2.getIndex(),fea2,getName(),EditionEvent.GRAPHIC);

					clearSelection();

					// newSelectedRow.add(new

					// DefaultRowEdited(fea2,IRowEdited.STATUS_MODIFIED,edRow2.getIndex()));

				}

				featureStore.endEditingGroup();

				// vle.setSelectionCache(VectorialLayerEdited.NOTSAVEPREVIOUS,

				// newSelectedRow);

			} catch (DataException e) {

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

			} finally {

				if (iterator != null) {

					iterator.dispose();

				}

			}

		}

	}

	private Geometry intersectsGeometry(Geometry geometry1, Geometry geometry2) {

		Point2D p3 = null;

		Point2D p4 = null;

		Point2D p1 = null;

		Point2D p2 = null;

		GeneralPathX gpx = new GeneralPathX();

		PathIterator theIterator = geometry1.getInternalShape()

				.getPathIterator(null, Converter.FLATNESS);

		boolean first = true;

		double[] theData = new double[6];

		int theType;

		while (!theIterator.isDone()) {

			theType = theIterator.currentSegment(theData);

			switch (theType) {

			case PathIterator.SEG_MOVETO:

				p1 = new Point2D.Double(theData[0], theData[1]);

				gpx.moveTo(p1.getX(), p1.getY());

				break;

			case PathIterator.SEG_LINETO:

				p2 = new Point2D.Double(theData[0], theData[1]);

				ArrayList lines = getLines(geometry2);

				boolean isLineTo = true;

				for (int i = 0; i < lines.size(); i++) {

					Point2D[] ps1 = (Point2D[]) lines.get(i);

					Point2D p = UtilFunctions.getIntersection(ps1[0], ps1[1],

							p1, p2);

					// GeneralPathX gpxAux=new GeneralPathX();

					// gpxAux.moveTo(p.getX(),p.getY());

					// gpxAux.lineTo(ps1[0].getX(),ps1[0].getY());

					// Geometry

					// gjts1=FConverter.java2d_to_jts((FShape)ShapeFactory.createPolyline2D(gpxAux).getInternalShape());

					// Geometry

					// gjts2=FConverter.java2d_to_jts((FShape)geometry2.getInternalShape());

					// GeometryCollection

					// result=(GeometryCollection)gjts1.intersection(gjts2);

					// Point point=(Point)result.getGeometryN(1);

					// p=new Point2D.Double(point.getX(),point.getY());

					if (p != null && first) {

						gpx.lineTo(p.getX(), p.getY());

						first = false;

						isLineTo = false;

						break;

					} else {

						// gpx.lineTo(p2.getX(),p2.getY());

					}

				}

				if (!first && isLineTo) {

					gpx.lineTo(p2.getX(), p2.getY());

				}

				break;

			} // end switch

			theIterator.next();

		} // end while loop

		return createCurve(gpx);

	}

	private ArrayList getLines(Geometry geometry1) {

		Point2D p1 = null;

		Point2D p2 = null;

		ArrayList lines = new ArrayList();

		PathIterator theIterator = geometry1.getInternalShape()

				.getPathIterator(null, Converter.FLATNESS);

		double[] theData = new double[6];

		int theType;

		while (!theIterator.isDone()) {

			theType = theIterator.currentSegment(theData);

			switch (theType) {

			case PathIterator.SEG_MOVETO:

				p1 = new Point2D.Double(theData[0], theData[1]);

				break;

			case PathIterator.SEG_LINETO:

				p2 = new Point2D.Double(theData[0], theData[1]);

				lines.add(new Point2D[] { p1, p2 });

				break;

			} // end switch

			theIterator.next();

		} // end while loop

		return lines;

	}

	/**

	 * M?todo para dibujar la lo necesario para el estado en el que nos

	 * encontremos.

	 *

	 * @param g

	 *            Graphics sobre el que dibujar.

	 * @param x

	 *            par?metro x del punto que se pase para dibujar.

	 * @param y

	 *            par?metro x del punto que se pase para dibujar.

	 */

	public void drawOperation(Graphics g, double x, double y) {

	}

	/**

	 * Add a diferent option.

	 *

	 * @param s

	 *            Diferent option.

	 */

	public void addOption(String s) {

	}

	/*

	 * (non-Javadoc)

	 *

	 * @see com.iver.cit.gvsig.gui.cad.CADTool#addvalue(double)

	 */

	public void addValue(double d) {

	}

	public String getName() {

		return PluginServices.getText(this, "extend_");

	}

	public String toString() {

		return "_extend";

	}

	public boolean isApplicable(int shapeType) {

		switch (shapeType) {

		case Geometry.TYPES.CURVE:

		case Geometry.TYPES.GEOMETRY:

			return true;

		}

		return false;

	}

}

//

// Vicente Caballero Navarro

package com.iver.cit.gvsig.gui.cad.tools.smc;

import com.iver.cit.gvsig.gui.cad.tools.ExtendCADTool;

import java.awt.event.InputEvent;

import com.iver.andami.PluginServices;

public final class ExtendCADToolContext

    extends statemap.FSMContext

{

//---------------------------------------------------------------

// Member methods.

//

    public ExtendCADToolContext(ExtendCADTool owner)

    {

        super();

        _owner = owner;

        setState(Extend.SelectGeometryToExtend);

        Extend.SelectGeometryToExtend.Entry(this);

    }

    public void addOption(String s)

    {

        _transition = "addOption";

        getState().addOption(this, s);

        _transition = "";

        return;

    }

    public void addPoint(double pointX, double pointY, InputEvent event)

    {

        _transition = "addPoint";

        getState().addPoint(this, pointX, pointY, event);

        _transition = "";

        return;

    }

    public void addValue(double d)

    {

        _transition = "addValue";

        getState().addValue(this, d);

        _transition = "";

        return;

    }

    public ExtendCADToolState getState()

        throws statemap.StateUndefinedException

    {

        if (_state == null)

        {

            throw(

                new statemap.StateUndefinedException());

        }

        return ((ExtendCADToolState) _state);

    }

    protected ExtendCADTool getOwner()

    {

        return (_owner);

    }

//---------------------------------------------------------------

// Member data.

//

    transient private ExtendCADTool _owner;

//---------------------------------------------------------------

// Inner classes.

//

    public static abstract class ExtendCADToolState

        extends statemap.State

    {

    //-----------------------------------------------------------

    // Member methods.

    //

        protected ExtendCADToolState(String name, int id)

        {

            super (name, id);

        }

        protected void Entry(ExtendCADToolContext context) {}

        protected void Exit(ExtendCADToolContext context) {}

        protected void addOption(ExtendCADToolContext context, String s)

        {

            Default(context);

        }

        protected void addPoint(ExtendCADToolContext context, double pointX, double pointY, InputEvent event)

        {

            Default(context);

        }

        protected void addValue(ExtendCADToolContext context, double d)

        {

            Default(context);

        }

        protected void Default(ExtendCADToolContext context)

        {

            throw (

                new statemap.TransitionUndefinedException(

                    "State: " +

                    context.getState().getName() +

                    ", Transition: " +

                    context.getTransition()));

        }

    //-----------------------------------------------------------

    // Member data.

    //

    }

    /* package */ static abstract class Extend

    {

    //-----------------------------------------------------------

    // Member methods.

    //

    //-----------------------------------------------------------

    // Member data.

    //

        //-------------------------------------------------------

        // Statics.

        //

        /* package */ static Extend_Default.Extend_SelectGeometryToExtend SelectGeometryToExtend;

        private static Extend_Default Default;

        static

        {

            SelectGeometryToExtend = new Extend_Default.Extend_SelectGeometryToExtend("Extend.SelectGeometryToExtend", 0);

            Default = new Extend_Default("Extend.Default", -1);

        }

    }

    protected static class Extend_Default

        extends ExtendCADToolState

    {

    //-----------------------------------------------------------

    // Member methods.

    //

        protected Extend_Default(String name, int id)

        {

            super (name, id);

        }

        protected void addOption(ExtendCADToolContext context, String s)

        {

            ExtendCADTool ctxt = context.getOwner();

            if (s.equals(PluginServices.getText(this,"cancel")))

            {

                boolean loopbackFlag =

                    context.getState().getName().equals(

                        Extend.SelectGeometryToExtend.getName());

                if (loopbackFlag == false)

                {

                    (context.getState()).Exit(context);

                }

                context.clearState();

                try

                {

                    ctxt.end();

                }

                finally

                {

                    context.setState(Extend.SelectGeometryToExtend);

                    if (loopbackFlag == false)

                    {

                        (context.getState()).Entry(context);

                    }

                }

            }

            else

            {

                boolean loopbackFlag =

                    context.getState().getName().equals(

                        Extend.SelectGeometryToExtend.getName());

                if (loopbackFlag == false)

                {

                    (context.getState()).Exit(context);

                }

                context.clearState();

                try

                {

                    ctxt.throwOptionException(PluginServices.getText(this,"incorrect_option"), s);

                }

                finally

                {

                    context.setState(Extend.SelectGeometryToExtend);

                    if (loopbackFlag == false)

                    {

                        (context.getState()).Entry(context);

                    }

                }

            }

            return;

        }

        protected void addValue(ExtendCADToolContext context, double d)

        {

            ExtendCADTool ctxt = context.getOwner();

            boolean loopbackFlag =

                context.getState().getName().equals(

                    Extend.SelectGeometryToExtend.getName());

            if (loopbackFlag == false)

            {

                (context.getState()).Exit(context);

            }

            context.clearState();

            try

            {

                ctxt.throwValueException(PluginServices.getText(this,"incorrect_value"), d);

            }

            finally

            {

                context.setState(Extend.SelectGeometryToExtend);

                if (loopbackFlag == false)

                {

                    (context.getState()).Entry(context);

                }

            }

            return;

        }

        protected void addPoint(ExtendCADToolContext context, double pointX, double pointY, InputEvent event)

        {

            ExtendCADTool ctxt = context.getOwner();

            boolean loopbackFlag =

                context.getState().getName().equals(

                    Extend.SelectGeometryToExtend.getName());

            if (loopbackFlag == false)

            {

                (context.getState()).Exit(context);

            }

            context.clearState();

            try

            {

                ctxt.throwPointException(PluginServices.getText(this,"incorrect_point"), pointX, pointY);

            }

            finally

            {

                context.setState(Extend.SelectGeometryToExtend);

                if (loopbackFlag == false)

                {

                    (context.getState()).Entry(context);

                }

            }

            return;

        }

    //-----------------------------------------------------------

    // Inner classse.

    //

        private static final class Extend_SelectGeometryToExtend

            extends Extend_Default

        {

        //-------------------------------------------------------

        // Member methods.

        //

            private Extend_SelectGeometryToExtend(String name, int id)

            {

                super (name, id);

            }

            protected void Entry(ExtendCADToolContext context)

            {

                ExtendCADTool ctxt = context.getOwner();

                ctxt.selection();

                ctxt.setQuestion(PluginServices.getText(this,"select_geometry_to_extend"));

                ctxt.setDescription(new String[]{"cancel"});

                return;

            }

            protected void addPoint(ExtendCADToolContext context, double pointX, double pointY, InputEvent event)

            {

                ExtendCADTool ctxt = context.getOwner();

                ExtendCADToolState endState = context.getState();

                context.clearState();

                try

                {

                    ctxt.setQuestion(PluginServices.getText(this,"select_geometry_to_extend"));

                    ctxt.setDescription(new String[]{"cancel"});

                    ctxt.addPoint(pointX, pointY, event);

                }

                finally

                {

                    context.setState(endState);

                }

                return;

            }

        //-------------------------------------------------------

        // Member data.

        //

        }

    //-----------------------------------------------------------

    // Member data.

    //

    }

}

// -*- tab-width: 4; -*-

%{

//

// Vicente Caballero Navarro

%}

%start Extend::SelectGeometryToExtend

%class ExtendCADTool

%package com.iver.cit.gvsig.gui.cad.tools.smc

%import com.iver.cit.gvsig.gui.cad.tools.ExtendCADTool

%import java.awt.event.InputEvent

%import com.iver.andami.PluginServices

%map Extend

%%

// A task begins life in suspended animation.

SelectGeometryToExtend

	Entry {

		selection();

		setQuestion(

		PluginServices.getText(this,"select_geometry_to_extend"));

		setDescription(new String[]{"cancel"});

		}

	Exit{

		}

	{

		addPoint( pointX:double,pointY:double,event:InputEvent)

			SelectGeometryToExtend {

				setQuestion(PluginServices.getText(this,"select_geometry_to_extend"));

				setDescription(new String[]{"cancel"});

				addPoint( pointX,pointY,event);

				}

	}

Default

{

	addOption(s:String)

		[s.equals(PluginServices.getText(this,"cancel"))]

		SelectGeometryToExtend{

			end();

			}

	addOption(s:String)

		SelectGeometryToExtend{

			throwOptionException(PluginServices.getText(this,"incorrect_option"),s);

			}

	addValue(d:double)

		SelectGeometryToExtend{

			throwValueException(PluginServices.getText(this,"incorrect_value"),d);

			}

	addPoint(pointX:double,pointY:double,event:InputEvent)

		SelectGeometryToExtend{

			throwPointException(PluginServices.getText(this,"incorrect_point"),pointX,pointY);

			}

}

%%