| 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.tools;

import java.awt.event.InputEvent;

import java.awt.geom.Point2D;

import org.gvsig.andami.PluginServices;

import org.gvsig.editing.gui.cad.DefaultCADTool;

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

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

import org.gvsig.editing.gui.cad.tools.smc.LineCADToolContext.LineCADToolState;

import org.gvsig.fmap.geom.Geometry;

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

import org.gvsig.fmap.mapcontrol.MapControlDrawer;

/**

 * DOCUMENT ME!

 * 

 * @author Vicente Caballero Navarro

 */

public class LineCADTool extends DefaultCADTool {

    protected LineCADToolContext _fsm;

    protected Point2D firstPoint;

    protected Point2D lastPoint;

    protected double angle;

    protected double length;

    /**

     * Crea un nuevo LineCADTool.

     */

    public LineCADTool() {

    }

    /**

     * 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 LineCADToolContext(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);

        }

    }

    /**

     * 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) {

        LineCADToolState actualState =

            (LineCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status.equals("Line.FirstPoint")) {

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

        } else

            if (status == "Line.SecondPointOrAngle") {

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

                GeneralPathX elShape =

                    new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, 2);

                elShape.moveTo(firstPoint.getX(), firstPoint.getY());

                elShape.lineTo(lastPoint.getX(), lastPoint.getY());

                insertAndSelectGeometry(createCurve(elShape));

                firstPoint = (Point2D) lastPoint.clone();

            } else

                if (status == "Line.LenghtOrPoint") {

                    length = firstPoint.distance(x, y);

                    double w = (Math.cos(Math.toRadians(angle))) * length;

                    double h = (Math.sin(Math.toRadians(angle))) * length;

                    lastPoint =

                        new Point2D.Double(firstPoint.getX() + w,

                            firstPoint.getY() + h);

                    GeneralPathX elShape =

                        new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, 2);

                    elShape.moveTo(firstPoint.getX(), firstPoint.getY());

                    elShape.lineTo(lastPoint.getX(), lastPoint.getY());

                    insertAndSelectGeometry(createCurve(elShape));

                    firstPoint = (Point2D) lastPoint.clone();

                }

    }

    /**

     * 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) {

        LineCADToolState actualState = _fsm.getState();

        String status = actualState.getName();

        if ((status != "Line.FirstPoint")) { // || (status == "5")) {

            if (firstPoint != null) {

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

                    mapControlManager.getGeometrySelectionSymbol());

            }

        }

    }

    /**

     * Add a diferent option.

     * 

     * @param sel

     *            DOCUMENT ME!

     * @param s

     *            Diferent option.

     */

    public void addOption(String s) {

        // TODO Auto-generated method stub

    }

    /*

     * (non-Javadoc)

     * 

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

     */

    public void addValue(double d) {

        LineCADToolState actualState =

            (LineCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

        if (status == "Line.SecondPointOrAngle") {

            angle = d;

        } else

            if (status == "Line.LenghtOrPoint") {

                length = d;

                double w = Math.cos(Math.toRadians(angle)) * length;

                double h = Math.sin(Math.toRadians(angle)) * length;

                lastPoint =

                    new Point2D.Double(firstPoint.getX() + w, firstPoint.getY()

                        + h);

                GeneralPathX elShape =

                    new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, 2);

                elShape.moveTo(firstPoint.getX(), firstPoint.getY());

                elShape.lineTo(lastPoint.getX(), lastPoint.getY());

                insertAndSelectGeometry(createCurve(elShape));

                firstPoint = (Point2D) lastPoint.clone();

            }

    }

    public String getName() {

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

    }

    public String toString() {

        return "_line";

    }

    public boolean isApplicable(int shapeType) {

        switch (shapeType) {

        case Geometry.TYPES.POINT:

        case Geometry.TYPES.MULTIPOINT:

        case Geometry.TYPES.SURFACE:

        case Geometry.TYPES.MULTISURFACE:

            return false;

        }

        return true;

    }

}