Application: gvSIG desktop » gvSIG Document Layout

/* 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.app.project.documents.layout.geometryadapters;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.Geometry.SUBTYPES;

import org.gvsig.fmap.geom.Geometry.TYPES;

import org.gvsig.fmap.geom.exception.CreateGeometryException;

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

import org.gvsig.fmap.mapcontext.MapContextLocator;

import org.gvsig.fmap.mapcontext.MapContextManager;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.line.ILineSymbol;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

public class CircleAdapter extends GeometryAdapter {

    public static final String PERSISTENCE_DEFINITION_NAME = "CircleAdapter";

    private static final Logger logger = LoggerFactory

        .getLogger(CircleAdapter.class);

    private Point2D pointPosition = new Point2D.Double();

    private AffineTransform identity = new AffineTransform();

    private MapContextManager mapContextManager = MapContextLocator

        .getMapContextManager();

    public CircleAdapter() {

        super();

    }

    /**

     * DOCUMENT ME!

     * 

     * @param g

     *            DOCUMENT ME!

     * @param at

     *            DOCUMENT ME!

     * @param andLastPoint

     *            DOCUMENT ME!

     */

    public void paint(Graphics2D g, AffineTransform at, boolean andLastPoint) {

        if (getPoints().length > 0) {

            if (andLastPoint) {

                obtainShape(pointPosition);

            }

            Geometry shapeAux = getGeometry(at);

            ILineSymbol symbol =

                (ILineSymbol) mapContextManager.getSymbolManager()

                    .createSymbol(ILineSymbol.SYMBOL_NAME);

            ILineSymbol redOutline =

                (ILineSymbol) MapContextLocator.getSymbolManager()

                    .createSymbol(ILineSymbol.SYMBOL_NAME);

            redOutline.setLineColor(Color.red);

            symbol.draw(g, identity, shapeAux, null, null);

        }

    }

    /**

     * DOCUMENT ME!

     * 

     * @param p

     *            DOCUMENT ME!

     */

    public void pointPosition(Point2D p) {

        pointPosition = p;

    }

    /**

     * DOCUMENT ME!

     * 

     * @param p

     *            DOCUMENT ME!

     * @throws CreateGeometryException 

     */

    public void obtainShape(Point2D p) {

        Point2D[] points = getPoints();

        double x = (points[0]).getX(); 

        double y = (points[0]).getY();

        double r = p.distance(points[0]);

        try {

            Circle circle = (Circle)geomManager.create(TYPES.CIRCLE, SUBTYPES.GEOM2D);

            double flatness = geomManager.getFlatness();

            geomManager.setFlatness(0.01);

            circle.setPoints(geomManager.createPoint(x, y, SUBTYPES.GEOM2D), r) ;

            geomManager.setFlatness(flatness);

            setGeometry(circle);

        } catch (CreateGeometryException e) {

            logger.error("Error creating the circle", e);

        }            

    }

    public static void registerPersistent() {

        PersistenceManager manager = ToolsLocator.getPersistenceManager();

        if (manager.getDefinition(PERSISTENCE_DEFINITION_NAME) == null) {

            DynStruct definition =

                manager.addDefinition(CircleAdapter.class,

                    PERSISTENCE_DEFINITION_NAME,

                    "Circle Adapter persistence definition", null, null);

            definition.extend(manager

                .getDefinition(GeometryAdapter.PERSISTENCE_DEFINITION_NAME));

        }

    }

}