Application: gvSIG desktop

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

 *

 * Copyright (C) 2007 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.

 */

package org.gvsig.rastertools.toolselectrgb;

import java.awt.geom.Point2D;

import java.awt.image.BufferedImage;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.MapControl;

import com.iver.cit.gvsig.fmap.tools.SelectImageListenerImpl;

import com.iver.cit.gvsig.fmap.tools.Events.PointEvent;

/**

 * Extensi?n de la clase SelectImageListenerImple de FMap. Esta clase permite

 * capturar el evento de la selecci?n de un punto RGB sobre la vista

 * 

 * 22/02/2008

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class SelectRGBListener extends SelectImageListenerImpl {

        private ISelectRGB selectRGB;

        /**

         * Contructor

         * @param mapCtrl

         */

        public SelectRGBListener(MapControl mapCtrl, ISelectRGB selectRGB) {

                super(mapCtrl);

                this.selectRGB = selectRGB;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.tools.Listeners.PointListener#point(com.iver.cit.gvsig.fmap.tools.Events.PointEvent)

         */

        public void point(PointEvent event) {

                super.point(event);

                Point2D point2D = event.getPoint();

                if (PluginServices.getMainFrame() != null)

                        PluginServices.getMainFrame().enableControls();

                BufferedImage image = mapCtrl.getImage();

                int value = image.getRGB((int) point2D.getX(), (int) point2D.getY());

                int r = (value >> 16) & 0xff;

                int g = (value >> 8) & 0xff;

                int b = value & 0xff;

                selectRGB.actionRGBSelected(r, g, b);

        }

}