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.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.FGeometryCollection;

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

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

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

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.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.InternalPolygonCADToolContext;

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

/**

 * DOCUMENT ME!

 *

 * @author Vicente Caballero Navarro

 */

public class InternalPolygonCADTool extends DefaultCADTool {

    private InternalPolygonCADToolContext _fsm;

   private ArrayList points=new ArrayList();

    /**

     * Crea un nuevo PolylineCADTool.

     */

    public InternalPolygonCADTool() {

    }

    /**

     * 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 InternalPolygonCADToolContext(this);

        points.clear();

    }

    /* (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 selectedRow=getSelectedRows();

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

            CADExtension.setCADTool("_selection",false);

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

                "_internalpolygon");

        }

    }

    /**

     * 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) {

            VectorialLayerEdited vle=getVLE();

        ArrayList selectedRows=vle.getSelectedRow();

        if (selectedRows.size()==1){

                        points.add(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) {

            Point2D[] ps=(Point2D[])points.toArray(new Point2D[0]);

            GeneralPathX gpx=new GeneralPathX();

            GeneralPathX gpx1=new GeneralPathX();

            if (ps.length>0){

            for (int i=0;i<ps.length;i++){

                    if (i==0){

                            gpx.moveTo(ps[i].getX(),ps[i].getY());

                            gpx1.moveTo(ps[i].getX(),ps[i].getY());

                    }else{

                            gpx.lineTo(ps[i].getX(),ps[i].getY());

                            gpx1.lineTo(ps[i].getX(),ps[i].getY());

                    }

            }

            gpx.lineTo(x,y);

            gpx.closePath();

            gpx1.closePath();

            IGeometry geom=ShapeFactory.createPolygon2D(gpx);

            IGeometry geom1=ShapeFactory.createPolygon2D(gpx1);

            geom1.draw((Graphics2D)g,CADExtension.getEditionManager().getMapControl().getViewPort(),DefaultCADTool.drawingSymbol);

            geom.draw((Graphics2D)g,CADExtension.getEditionManager().getMapControl().getViewPort(),DefaultCADTool.modifySymbol);

            }

    }

    /**

     * Add a diferent option.

     *

     * @param s Diferent option.

     */

    public void addOption(String s) {

            VectorialLayerEdited vle=getVLE();

            ArrayList selectedRows=vle.getSelectedRow();

            VectorialEditableAdapter vea = vle.getVEA();

            IRowEdited row=null;

            if (s.equals(PluginServices.getText(this,"end")) || s.equals("e")|| s.equals("E")){

                    if (points.size()>0){

                            row =  (DefaultRowEdited) selectedRows.get(0);

                            IFeature feat = (IFeature) row.getLinkedRow().cloneRow();

                            IGeometry geometry=feat.getGeometry();

                            if (geometry instanceof FGeometryCollection) {

                                    FGeometryCollection gc=(FGeometryCollection)geometry;

                                    geometry=createNewPolygonGC(gc,(Point2D[])points.toArray(new Point2D[0]));

                            }else {

                                    geometry=createNewPolygon(geometry,(Point2D[])points.toArray(new Point2D[0]));

                            }

                            DefaultFeature df=new DefaultFeature(geometry,feat.getAttributes(), feat.getID());

                            DefaultRowEdited dre=new DefaultRowEdited(df,DefaultRowEdited.STATUS_MODIFIED,row.getIndex());

                            try {

                                        vea.modifyRow(dre.getIndex(),dre.getLinkedRow(),getName(),EditionEvent.GRAPHIC);

                                } catch (IOException e) {

                                        e.printStackTrace();

                                } catch (DriverIOException e) {

                                        e.printStackTrace();

                                }

                                selectedRows.clear();

                            selectedRows.add(dre);

                    }

                    points.clear();

            }else if (s.equals(PluginServices.getText(this,"cancel"))|| s.equals("c")|| s.equals("C")){

                    points.clear();

            }

    }

    /* (non-Javadoc)

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

     */

    public void addValue(double d) {

    }

    private IGeometry createNewPolygon(IGeometry gp,Point2D[] ps) {

        GeneralPathX newGp = new GeneralPathX();

        double[] theData = new double[6];

        PathIterator theIterator;

        int theType;

        int numParts = 0;

        theIterator = gp.getPathIterator(null); //, flatness);

        while (!theIterator.isDone()) {

            theType = theIterator.currentSegment(theData);

            switch (theType) {

                case PathIterator.SEG_MOVETO:

                    numParts++;

                    newGp.moveTo(theData[0], theData[1]);

                    break;

                case PathIterator.SEG_LINETO:

                    newGp.lineTo(theData[0], theData[1]);

                    break;

                case PathIterator.SEG_QUADTO:

                    newGp.quadTo(theData[0], theData[1], theData[2], theData[3]);

                    break;

                case PathIterator.SEG_CUBICTO:

                    newGp.curveTo(theData[0], theData[1], theData[2], theData[3], theData[4], theData[5]);

                    break;

                case PathIterator.SEG_CLOSE:

                        newGp.closePath();

                    break;

            } //end switch

            theIterator.next();

        } //end while loop

     GeneralPathX gpxInternal=new GeneralPathX();

     gpxInternal.moveTo(ps[ps.length-1].getX(),ps[ps.length-1].getY());

     for (int i=ps.length-1;i>=0;i--){

             gpxInternal.lineTo(ps[i].getX(),ps[i].getY());

     }

     gpxInternal.lineTo(ps[ps.length-1].getX(),ps[ps.length-1].getY());

     if (!gpxInternal.isCCW()) {

             gpxInternal.flip();

     }

     newGp.append(gpxInternal,false);

     return ShapeFactory.createPolygon2D(newGp);

    }

    private IGeometry createNewPolygonGC(FGeometryCollection gp,Point2D[] ps) {

            ArrayList geoms=new ArrayList();

            IGeometry[] geometries=gp.getGeometries();

            for (int i = 0;i<geometries.length;i++) {

                    geoms.add(geometries[i]);

            }

            GeneralPathX gpx=new GeneralPathX();

                gpx.moveTo(ps[ps.length-1].getX(),ps[ps.length-1].getY());

            for (int i=ps.length-2;i>=0;i--){

                    gpx.lineTo(ps[i].getX(),ps[i].getY());

                    geoms.add(ShapeFactory.createPolyline2D(gpx));

                    gpx=new GeneralPathX();

                    gpx.moveTo(ps[i].getX(),ps[i].getY());

            }

            gpx.lineTo(ps[ps.length-1].getX(),ps[ps.length-1].getY());

            geoms.add(ShapeFactory.createPolyline2D(gpx));

            FGeometryCollection gc=new FGeometryCollection((IGeometry[])geoms.toArray(new IGeometry[0]));

//            gc.setGeometryType(FShape.POLYGON);

            return gc;

    }

    public String getName() {

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

        }

        public String toString() {

                return "_internalpolygon";

        }

        public boolean isApplicable(int shapeType) {

                switch (shapeType) {

                case FShape.POINT:

                case FShape.LINE:

                case FShape.MULTIPOINT:

                        return false;

                }

                return true;

        }

}