| 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.Component;

import java.awt.event.InputEvent;

import java.awt.event.MouseEvent;

import java.awt.geom.PathIterator;

import java.util.ArrayList;

import java.util.List;

import javax.swing.JOptionPane;

import com.vividsolutions.jts.geom.GeometryCollection;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.editing.CADExtension;

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

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

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

import org.gvsig.editing.layers.VectorialLayerEdited;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.dal.feature.EditableFeature;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FeatureSelection;

import org.gvsig.fmap.dal.feature.FeatureSet;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.aggregate.MultiPrimitive;

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

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

import org.gvsig.fmap.mapcontrol.MapControlDrawer;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.tools.dispose.DisposeUtils;

/**

 * DOCUMENT ME!

 * 

 * @author Vicente Caballero Navarro

 */

public class InternalPolygonCADTool extends DefaultCADTool {

    protected InternalPolygonCADToolContext _fsm;

    protected List<Point> points = new ArrayList<Point>();

    protected Geometry geometry = null;

    /**

     * 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() {

        FeatureSet selection = null;

        try {

            selection = (FeatureSet) getVLE().getFeatureStore().getSelection();

            if (selection.getSize() == 0

                && !CADExtension

                    .getCADTool()

                    .getClass()

                    .getName()

                    .equals("com.iver.cit.gvsig.gui.cad.tools.SelectionCADTool")) {

                CADExtension.setCADTool("_selection", false);

                ((SelectionCADTool) CADExtension.getCADTool())

                    .setNextTool("_internalpolygon");

            }

        } catch (ReadException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (DataException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

    /**

     * 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) {

        if (((MouseEvent) event).getClickCount() == 2) {

            addOption(PluginServices

                .getText(this, "InternalPolygonCADTool.end"));

            return;

        }

        VectorialLayerEdited vle = getVLE();

        FeatureSet featureCollection = null;

        DisposableIterator iterator = null;

        try {

            featureCollection =

                (FeatureSet) vle.getFeatureStore().getSelection();

            if (featureCollection.getSize() == 1) {

                iterator = featureCollection.iterator();

                Feature feature = (Feature) iterator.next();

                geometry = (feature.getDefaultGeometry()).cloneGeometry();

                if (geometry.contains(x, y)) {

                    points.add(createPoint(x, y));

                } else {

                    JOptionPane

                        .showMessageDialog(

                            ((Component) PluginServices.getMainFrame()),

                            PluginServices

                                .getText(this,

                                    "debe_insertar_el_punto_dentro_de_los_limites_de_la_geometria"));

                }

            }

        } catch (ReadException e) {

            NotificationManager.addError(e.getMessage(), e);

        } catch (DataException e) {

            NotificationManager.addError(e.getMessage(), e);

        } finally {

            DisposeUtils.dispose(iterator);

        }

    }

    /**

     * 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(MapControlDrawer renderer, double x, double y) {

        GeneralPathX gpx = new GeneralPathX();

        GeneralPathX gpx1 = new GeneralPathX();

        if (points.size() > 0) {

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

                if (i == 0) {

                    gpx.moveTo(points.get(i));

                    gpx1.moveTo(points.get(i));

                } else {

                    gpx.lineTo(points.get(i));

                    gpx1.lineTo(points.get(i));

                }

            }

            gpx.lineTo(createPoint(x, y));

            gpx.closePath();

            gpx1.closePath();

            Geometry geom = createSurface(gpx);

            Geometry geom1 = createSurface(gpx1);

            renderer.draw(geom1, mapControlManager.getSelectionSymbol());

            renderer.draw(geom, mapControlManager.getGeometrySelectionSymbol());

        }

    }

    /**

     * Add a diferent option.

     * 

     * @param s

     *            Diferent option.

     */

    public void addOption(String s) {

        VectorialLayerEdited vle = getVLE();

        FeatureStore featureStore = null;

        try {

            featureStore = vle.getFeatureStore();

        } catch (ReadException e1) {

            // TODO Auto-generated catch block

            e1.printStackTrace();

        }

        DisposableIterator iterator = null;

        try {

            iterator =

                ((FeatureSelection) featureStore.getSelection()).iterator();

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

                || s.equalsIgnoreCase(PluginServices.getText(this,

                    "InternalPolygonCADTool.end"))) {

                if (points.size() > 0) {

                    Feature feature = (Feature) iterator.next();

                    geometry = (feature.getDefaultGeometry()).cloneGeometry();

                    if (geometry instanceof GeometryCollection) {

                        MultiPrimitive gc = (MultiPrimitive) geometry;

                        geometry = createNewPolygonGC(gc, points);

                    } else {

                        geometry = createNewPolygon(geometry, points);

                    }

                    try {

                        EditableFeature eFeature = feature.getEditable();

                        eFeature.setGeometry(featureStore

                            .getDefaultFeatureType()

                            .getDefaultGeometryAttributeName(), geometry);

                        featureStore.update(eFeature);

                    } catch (ReadException e) {

                        NotificationManager.addError(e.getMessage(), e);

                    } catch (DataException e) {

                        NotificationManager.addError(e.getMessage(), e);

                    }

                    ArrayList rows = new ArrayList();

                    rows.add(feature);

                    // vle.setSelectionCache(VectorialLayerEdited.NOTSAVEPREVIOUS,

                    // rows);

                }

                points.clear();

                refresh();

            } else

                if (s.equals(PluginServices.getText(this, "cancel"))) {

                    points.clear();

                }

        } catch (DataException e1) {

            e1.printStackTrace();

        } finally {

            if (iterator != null) {

                iterator.dispose();

            }

        }

    }

    /*

     * (non-Javadoc)

     * 

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

     */

    public void addValue(double d) {

    }

    private Geometry createNewPolygon(Geometry geometry, List<Point> points) {

        GeneralPathX newGp = new GeneralPathX();

        double[] theData = new double[6];

        PathIterator theIterator;

        int theType;

        int numParts = 0;

        theIterator = geometry.getPathIterator(null, geomManager.getFlatness());

        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(points.get(points.size() - 1));

        for (int i = points.size() - 2; i >= 0; i--) {

            gpxInternal.lineTo(points.get(i));

        }

        gpxInternal.closePath();

        if (!gpxInternal.isCCW()) {

            gpxInternal.flip();

        }

        newGp.append(gpxInternal.getPathIterator(null), false);

        return createSurface(newGp);

    }

    private Geometry createNewPolygonGC(MultiPrimitive multiPrimitive,

        List<Point> points) {

        MultiPrimitive multiPrimitiveAux = createMultiPrimitive();

        for (int i = 0; i < multiPrimitive.getPrimitivesNumber(); i++) {

            multiPrimitiveAux.addPrimitive(multiPrimitive.getPrimitiveAt(i));

        }

        GeneralPathX gpx = new GeneralPathX();

        gpx.moveTo(points.get(points.size() - 1));

        for (int i = points.size() - 2; i >= 0; i--) {

            gpx.lineTo(points.get(i));

            multiPrimitiveAux.addPrimitive(createCurve(gpx));

            gpx = new GeneralPathX();

            gpx.moveTo(points.get(i));

        }

        gpx.closePath();

        multiPrimitiveAux.addPrimitive(createCurve(gpx));

        return multiPrimitiveAux;

    }

    public String getName() {

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

    }

    public String toString() {

        return "_internalpolygon";

    }

    public boolean isApplicable(int shapeType) {

        switch (shapeType) {

        case Geometry.TYPES.POINT:

        case Geometry.TYPES.CURVE:

        case Geometry.TYPES.MULTIPOINT:

            return false;

        }

        return true;

    }

}