| gvSIG desktop 1

/* 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.io.IOException;

import java.util.ArrayList;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.CADExtension;

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

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

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

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

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

import com.iver.cit.gvsig.fmap.core.v02.FConverter;

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.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() {

        ArrayList rowSelected=getSelectedRows();

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

            CADExtension.setCADTool("_selection",false);

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

                "_extend");

        }

    }

    /**

     * 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();

                    VectorialEditableAdapter vea=vle.getVEA();

                    vea.startComplexRow();

                    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=getSelectedRows();

                    try {

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

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

                    DefaultFeature fea1 = (DefaultFeature) edRow1.getLinkedRow().cloneRow();

                        IGeometry geometry1 = null;

                        geometry1 = fea1.getGeometry();

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

                    DefaultFeature fea2 = (DefaultFeature) edRow2.getLinkedRow().cloneRow();

                        IGeometry geometry2 = null;

                        geometry2 = fea2.getGeometry();

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

                            //if (geometry1 instanceof FPolygon2D) {

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

                            //}

                    //}

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

                        clearSelection();

                        newSelectedRow.add(new DefaultRowEdited(fea2,IRowEdited.STATUS_MODIFIED,edRow2.getIndex()));

                    }

                        vea.endComplexRow(getName());

                        vle.setSelectionCache(VectorialLayerEdited.NOTSAVEPREVIOUS, newSelectedRow);

        } catch (IOException e) {

                        e.printStackTrace();

                } catch (DriverIOException e) {

                        e.printStackTrace();

                }

        }

    }

    private IGeometry intersectsGeometry(IGeometry geometry1, IGeometry geometry2) {

            Point2D p3=null;

        Point2D p4=null;

            Point2D p1=null;

        Point2D p2=null;

                GeneralPathX gpx=new GeneralPathX();

                PathIterator theIterator=geometry1.getInternalShape().getPathIterator(null,FConverter.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 ShapeFactory.createPolyline2D(gpx);

        }

        private ArrayList getLines(IGeometry geometry1) {

                Point2D p1=null;

        Point2D p2=null;

                ArrayList lines=new ArrayList();

            PathIterator theIterator=geometry1.getInternalShape().getPathIterator(null,FConverter.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 FShape.LINE:

                case FShape.MULTI:

                        return true;

                }

                return false;

        }

}