Application: gvSIG desktop

/* 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.tools;

import java.awt.event.InputEvent;

import java.awt.geom.Point2D;

import javax.swing.JOptionPane;

import org.gvsig.andami.PluginServices;

import org.gvsig.app.ApplicationLocator;

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

import org.gvsig.editing.gui.cad.tools.smc.CircleCADToolContext;

import org.gvsig.editing.gui.cad.tools.smc.CircleCADToolContext.CircleCADToolState;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

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

import org.gvsig.fmap.mapcontrol.MapControlDrawer;

import org.gvsig.i18n.Messages;

/**

 * DOCUMENT ME!

 * 

 * @author Vicente Caballero Navarro

 */

public class CircleCADTool extends AbstractSurfaceCADTool {

    protected CircleCADToolContext _fsm;

    protected Point2D center;

    protected Point2D firstPoint;

    protected Point2D secondPoint;

    protected Point2D thirdPoint;

    /**

     * 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 CircleCADToolContext(this);

    }

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

        _fsm.addPoint(x, y, event);

    }

    public void transition(double d) {

        _fsm.addValue(d);

    }

    public void transition(String s) throws CommandException {

        if (!super.changeCommand(s)) {

            _fsm.addOption(s);

        }

    }

    /**

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

     * editableFeatureSource que ya estar? creado.

     * 

     * @param sel

     *            Bitset con las geometr?as que est?n seleccionadas.

     * @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) {

        CircleCADToolState actualState =

            (CircleCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status.equals("Circle.CenterPointOr3p")) {

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

        } else

            if (status == "Circle.PointOrRadius") {

                insertAndSelectGeometry(createCircle(createPoint(center),

                    createPoint(x, y)));

            } else

                if (status == "Circle.FirstPoint") {

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

                } else

                    if (status == "Circle.SecondPoint") {

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

                    } else

                        if (status == "Circle.ThirdPoint") {

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

                            insertAndSelectGeometry(createCircle(

                                createPoint(firstPoint),

                                createPoint(secondPoint),

                                createPoint(thirdPoint)));

                        }

    }

    /**

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

     * encontremos.

     * 

     * @param g

     *            Graphics sobre el que dibujar.

     * @param selectedGeometries

     *            BitSet con las geometr?as seleccionadas.

     * @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(MapControlDrawer renderer, double x, double y) {

        CircleCADToolState actualState = _fsm.getState();

        String status = actualState.getName();

        Geometry help_geom_perim = null; 

        if ((status == "Circle.CenterPointOr3p")) { // || (status == "5")) {

            if (firstPoint != null) {

                renderer.drawLine(firstPoint, new Point2D.Double(x, y),

                    mapControlManager.getGeometrySelectionSymbol());

            }

        }

        if (status == "Circle.PointOrRadius") {

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

            Circle circle =

                createCircle(createPoint(center), createPoint(currentPoint));

            try {

                help_geom_perim = GeometryLocator.

                    getGeometryManager().createCurve(

                        circle.getGeneralPath(),

                        Geometry.SUBTYPES.GEOM2D);

                renderer.draw(help_geom_perim,

                    mapControlManager.getAxisReferenceSymbol());

            } catch (Exception e) {

                ApplicationLocator.getManager().message(

                    Messages.getText("_Unable_to_draw_help_geometry"),

                    JOptionPane.ERROR_MESSAGE);

            }            

        } else

            if (status == "Circle.SecondPoint") {

                renderer.drawLine(firstPoint, new Point2D.Double(x, y),

                    mapControlManager.getGeometrySelectionSymbol());

            } else

                if (status == "Circle.ThirdPoint") {

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

                    Geometry geom =

                        createCircle(createPoint(firstPoint),

                            createPoint(secondPoint), createPoint(currentPoint));

                    if (geom != null) {

                        try {

                            help_geom_perim = GeometryLocator.

                                getGeometryManager().createCurve(

                                    geom.getGeneralPath(),

                                    Geometry.SUBTYPES.GEOM2D);

                            renderer.draw(help_geom_perim,

                                mapControlManager.getAxisReferenceSymbol());

                        } catch (Exception e) {

                            ApplicationLocator.getManager().message(

                                Messages.getText("_Unable_to_draw_help_geometry"),

                                JOptionPane.ERROR_MESSAGE);

                        }            

                    }

                }

    }

    /**

     * Add a diferent option.

     * 

     * @param sel

     *            DOCUMENT ME!

     * @param s

     *            Diferent option.

     */

    public void addOption(String s) {

        CircleCADToolState actualState =

            (CircleCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status == "Circle.CenterPointOr3p") {

            if (s.equalsIgnoreCase(PluginServices.getText(this,

                "CircleCADTool.3p"))) {

                // Opci?n correcta.

            }

        }

    }

    /*

     * (non-Javadoc)

     * 

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

     */

    public void addValue(double d) {

        CircleCADToolState actualState =

            (CircleCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status == "Circle.PointOrRadius") {

            insertAndSelectGeometry(createCircle(createPoint(center), d));

        }

    }

    public String getName() {

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

    }

    public String toString() {

        return "_circle";

    }

    @Override

    protected int getSupportedPrimitiveGeometryType() {

        return CIRCLE;

    }

}