| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2006 Prodevelop 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

 *   http://www.gvsig.gva.es

 *

 *    or

 *

 *   Prodevelop Integraci?n de Tecnolog?as SL

 *   Conde Salvatierra de ?lava , 34-10

 *   46004 Valencia

 *   Spain

 *

 *   +34 963 510 612

 *   +34 963 510 968

 *   gis@prodevelop.es

 *   http://www.prodevelop.es

 *

 *    or

 *

 *   Instituto de Rob?tica

 *   Apartado de correos 2085

 *   46071 Valencia

 *   (Spain)

 *   

 *   +34 963 543 577

 *   jjordan@robotica.uv.es

 *   http://robotica.uv.es

 *   

 */

package es.prodevelop.gvsig.mobile.fmap.core.acetate;

import java.awt.Component;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import org.apache.log4j.Logger;

/**

 * 

 * This class contains the GPS cursor used to indicate the position delivered by the

 * GPS device.

 * 

 * 

 * @author jcarras

 *

 */

public class MapCursor extends Component implements IAcetateElement {

        private static Logger logger = Logger.getLogger(MapCursor.class);

        private boolean visible = false;

        private Image icon;

        private double rotationDegrees = 0;

        private Point2D geoPoint = new Point2D.Double();

        private int radius_x = 0;

        private int radius_y = 0;

        /**

         * Constructor

         * @param i the icon image to be used. Preferable, a square image

         * with odd size: w = h = 2n + 1 (n is a natural number).

         * 

         */

        public MapCursor(Image i){

                icon=i;

                radius_x = icon.getWidth(null) / 2;

                radius_y = icon.getHeight(null) / 2;;

        }

        public void paint(Graphics g) {

                if (icon != null && visible) {

                        g.drawImage(icon, 0, 0, null);

                        logger.debug("MapCursor Icon painted");

                }

        }

        public void setXY(double x, double y) {

                geoPoint.setLocation(x, y);

        }

        /**

         * @return the icon image

         */

        public Image getIcon() {

                return icon;

        }

        /**

         * Sets the icon image.

         */

        public void setIcon(Image i) {

                icon = i;

                radius_x = icon.getWidth(null) / 2;

                radius_y = icon.getHeight(null) / 2;

        }

        public double getRotation() {

                return rotationDegrees;

        }

        public void setRotation(double r) {

                rotationDegrees = r;

        }

        public void draw(Graphics2D g, AffineTransform at) {

                Point2D aux = new Point2D.Double(0, 0);

                at.transform(geoPoint, aux);

                int screenx = (int) Math.round(aux.getX()) - radius_x;

                int screeny = (int) Math.round(aux.getY()) - radius_y;

                g.drawImage(icon, screenx, screeny, null);

        }

}