| gvSIG desktop 1

package com.iver.cit.gvsig.gui.cad.tools;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.cit.gvsig.exceptions.visitors.VisitorException;

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.Handler;

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.edition.UtilFunctions;

import com.iver.cit.gvsig.fmap.layers.FBitSet;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.iver.cit.gvsig.fmap.operations.strategies.DefaultStrategy;

import com.iver.cit.gvsig.gui.cad.DefaultCADTool;

import com.iver.cit.gvsig.gui.cad.tools.PolylineCADTool;

import com.iver.cit.gvsig.gui.cad.tools.smc.PolylineCADToolContext.PolylineCADToolState;

import com.vividsolutions.jts.geom.Geometry;

public class AutoCompletePolygon extends PolylineCADTool {

        @Override

         /**

     * 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(Graphics g, double x,

        double y) {

        IGeometry geom=getGeometry();

        if (geom.getHandlers(IGeometry.SELECTHANDLER).length ==0 && firstPoint!=null) {

                GeneralPathX gpx = new GeneralPathX();

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

                gpx.lineTo(x, y);

                ShapeFactory.createPolyline2D(gpx).draw((Graphics2D) g,

                                getCadToolAdapter().getMapControl().getViewPort(),

                                DefaultCADTool.geometrySelectSymbol);

        }

        else if (geom.getHandlers(IGeometry.SELECTHANDLER).length > 1) {

                GeneralPathX gpxGeom=new GeneralPathX();

                gpxGeom.moveTo(x,y);

                gpxGeom.append(geom.getPathIterator(null,FConverter.FLATNESS), true);

                gpxGeom.closePath();

                IGeometry newGeom = ShapeFactory.createPolygon2D(gpxGeom);

                newGeom.draw((Graphics2D) g,

                                getCadToolAdapter().getMapControl().getViewPort(),

                                DefaultCADTool.geometrySelectSymbol);

        }

    }

        private IGeometry autoComplete(IGeometry digitizedGeom) {

                Geometry jtsGeom = digitizedGeom.toJTSGeometry();

                FLyrVect lyrVect = (FLyrVect) getVLE().getLayer();

                // Se supone que debe ser r?pido, ya que est? indexado

                try {

                        FBitSet selected = lyrVect.queryByShape(digitizedGeom,

                                        DefaultStrategy.INTERSECTS);

                        for (int i = selected.nextSetBit(0); i >= 0; i = selected

                                        .nextSetBit(i + 1)) {

                                IGeometry aux = lyrVect.getSource().getShape(i);

                                Geometry jtsAux = aux.toJTSGeometry();

                                jtsGeom = jtsGeom.difference(jtsAux);

                        }

                } catch (ReadDriverException e) {

                        NotificationManager.showMessageError(

                                        PluginServices.getText(this, "Error_in_Autocomplete_Polygon_Tool_")

                                        + " " + e.getLocalizedMessage(),

                                        e);

                } catch (VisitorException e) {

                        NotificationManager.showMessageError(

                                        PluginServices.getText(this, "Error_in_Autocomplete_Polygon_Tool_")

                                        + " " + e.getLocalizedMessage(),

                                        e);

                } catch (com.vividsolutions.jts.geom.TopologyException e) {

                        NotificationManager.showMessageError(

                                        PluginServices.getText(this, "Error_in_Autocomplete_Polygon_Tool_")

                                        + " " + e.getLocalizedMessage(),

                                        e);

                } catch (Exception e) {

                        NotificationManager.showMessageError(

                                        PluginServices.getText(this, "Error_in_Autocomplete_Polygon_Tool_")

                                        + " " + e.getLocalizedMessage(),

                                        e);

                }

                return FConverter.jts_to_igeometry(jtsGeom);

        }

        @Override

        public void addGeometry(IGeometry geometry) {

                IGeometry newGeom = autoComplete(geometry);

                super.addGeometry(newGeom);

        }

         public boolean isApplicable(int shapeType) {

                switch (shapeType) {

                case FShape.POLYGON:

                    return true;

                }

                return false;

            }

}