Application: gvSIG desktop

/* 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.Graphics2D;

import java.awt.event.InputEvent;

import java.awt.geom.Point2D;

import java.io.IOException;

import java.util.ArrayList;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.CADExtension;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.core.DefaultFeature;

import com.iver.cit.gvsig.fmap.core.GeneralPathX;

import com.iver.cit.gvsig.fmap.core.Handler;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.ShapeFactory;

import com.iver.cit.gvsig.fmap.drivers.DriverIOException;

import com.iver.cit.gvsig.fmap.edition.DefaultRowEdited;

import com.iver.cit.gvsig.fmap.edition.EditionEvent;

import com.iver.cit.gvsig.fmap.edition.IRowEdited;

import com.iver.cit.gvsig.fmap.edition.UtilFunctions;

import com.iver.cit.gvsig.fmap.edition.VectorialEditableAdapter;

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.SymmetryCADToolContext;

import com.iver.cit.gvsig.gui.cad.tools.smc.SymmetryCADToolContext.SymmetryCADToolState;

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

/**

 * Herramienta para crear una geometr?a sim?trica a otra, con la posibilidad de

 * borrar la original.

 *

 * @author Vicente Caballero Navarro

 */

public class SymmetryCADTool extends DefaultCADTool {

    private SymmetryCADToolContext _fsm;

    private Point2D firstPoint;

    private Point2D secondPoint;

    /**

     * Crea un nuevo SymmetryCADTool.

     */

    public SymmetryCADTool() {

    }

    /**

     * M?todo de inicio, 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 SymmetryCADToolContext(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() {

       ArrayList selectedRows=getSelectedRows();

        if (selectedRows.size() == 0 && !CADExtension.getCADTool().getClass().getName().equals("com.iver.cit.gvsig.gui.cad.tools.SelectionCADTool")) {

            CADExtension.setCADTool("_selection",false);

            ((SelectionCADTool) CADExtension.getCADTool()).setNextTool(

                "_symmetry");

        }

    }

    /**

     * 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) {

        SymmetryCADToolState actualState = (SymmetryCADToolState) _fsm.getPreviousState();

        String status = actualState.getName();

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

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

            } else if (status.equals("Symmetry.SecondPoint")) {

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

            }

    }

    /**

     * 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) {

        SymmetryCADToolState actualState = ((SymmetryCADToolContext) _fsm).getState();

        String status = actualState.getName();

        if (status.equals("Symmetry.SecondPoint")) {

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

                drawSymmetry(g,pAux);

                }else if (status.equals("Symmetry.CutOrCopy")){

                        drawSymmetry(g,secondPoint);

                }

    }

private void drawSymmetry(Graphics g,Point2D pAux) {

        ArrayList selectedRow=getSelectedRows();

    VectorialLayerEdited vle=getVLE();

        ViewPort vp=vle.getLayer().getMapContext().getViewPort();

        GeneralPathX gpx=new GeneralPathX();

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

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

        ShapeFactory.createPolyline2D(gpx).draw((Graphics2D)g,vp,DefaultCADTool.axisReferencesSymbol);

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

                DefaultRowEdited row=(DefaultRowEdited) selectedRow.get(i);

                DefaultFeature fea = (DefaultFeature) row.getLinkedRow();

                IGeometry geom = fea.getGeometry().cloneGeometry();

                Handler[] handlers = geom.getHandlers(IGeometry.SELECTHANDLER);

                        for (int j = 0; j < handlers.length; j++) {

                                Handler h = (Handler) handlers[j];

                                Point2D p = h.getPoint();

                                Point2D[] ps = UtilFunctions.getPerpendicular(firstPoint,

                                                pAux, p);

                                Point2D inter = UtilFunctions.getIntersection(ps[0],

                                                ps[1], firstPoint, pAux);

                                if (inter!=null) {

                                        Point2D dif = new Point2D.Double(inter.getX() -

                                                        p.getX(), inter.getY() - p.getY());

                                        h.set(inter.getX() + dif.getX(),

                                                        inter.getY() + dif.getY());

                                }

                        }

                        geom.draw((Graphics2D)g,vp,DefaultCADTool.selectionSymbol);

        }

}

    /**

         * Add a diferent option.

         *

         * @param s

         *            Diferent option.

         */

    public void addOption(String s) {

             SymmetryCADToolState actualState = (SymmetryCADToolState) _fsm

                                .getPreviousState();

                String status = actualState.getName();

                ArrayList selectedRow = getSelectedRows();

                ArrayList selectedRowAux=new ArrayList();

                VectorialLayerEdited vle = getVLE();

                VectorialEditableAdapter vea = vle.getVEA();

                if (status.equals("Symmetry.CutOrCopy")) {

                        PluginServices.getMDIManager().setWaitCursor();

                        try {

                                vea.startComplexRow();

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

                                        DefaultRowEdited row = (DefaultRowEdited) selectedRow

                                                        .get(i);

                                        DefaultFeature fea = (DefaultFeature) row.getLinkedRow()

                                                        .cloneRow();

                                        IGeometry geom = fea.getGeometry();

                                        Handler[] handlers = geom

                                                        .getHandlers(IGeometry.SELECTHANDLER);

                                        for (int j = 0; j < handlers.length; j++) {

                                                Handler h = (Handler) handlers[j];

                                                Point2D p = h.getPoint();

                                                Point2D[] ps = UtilFunctions.getPerpendicular(

                                                                firstPoint, secondPoint, p);

                                                Point2D inter = UtilFunctions.getIntersection(ps[0],

                                                                ps[1], firstPoint, secondPoint);

                                                Point2D dif = new Point2D.Double(inter.getX()

                                                                - p.getX(), inter.getY() - p.getY());

                                                h.set(inter.getX() + dif.getX(), inter.getY()

                                                                + dif.getY());

                                        }

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

                                                        || s.equals("s") || s.equals("S")) {

                                                vea.modifyRow(row.getIndex(), fea,

                                                                getName(), EditionEvent.GRAPHIC);

                                                selectedRowAux.add(new DefaultRowEdited(fea,

                                                                IRowEdited.STATUS_MODIFIED, row.getIndex()));

                                        } else {

                                                int index=addGeometry(geom,fea.getAttributes());

                                                selectedRowAux.add(new DefaultRowEdited(fea,

                                                                IRowEdited.STATUS_ADDED, index));

                                                getCadToolAdapter().getMapControl().drawMap(false);

                                        }

                                }

                                vea.endComplexRow(getName());

                                vle.setSelectionCache(selectedRowAux);

                                //clearSelection();

                                //selectedRow.addAll(selectedRowAux);

                        } catch (DriverIOException e) {

                                e.printStackTrace();

                        } catch (IOException e1) {

                                e1.printStackTrace();

                        }

                        PluginServices.getMDIManager().restoreCursor();

                }

    }

    /*

         * (non-Javadoc)

         *

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

         */

    public void addValue(double d) {

    }

        public String getName() {

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

        }

        public String toString() {

                return "_symmetry";

        }

}