| gvSIG desktop 1

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

*

* Copyright (C) 2005 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.histogram;

import javax.swing.SwingUtilities;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.raster.RasterProcess;

import org.gvsig.raster.datastruct.Histogram;

import org.gvsig.raster.datastruct.HistogramException;

import org.gvsig.raster.hierarchy.IHistogramable;

/**

 * Clase para calcular histogramas. Esta clase implementa IIncrementable para

 * poder ser usado con una ventana de incremento <code>IncrementableTask</code>

 *

 * @version 23/04/2007

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

 */

public class HistogramProcess extends RasterProcess {

        private IHistogramable iHistogramable = null;

        private Histogram      lastHistogram  = null;

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.RasterProcess#init()

         */

        public void init() {

                iHistogramable = (IHistogramable) getParam("histogramable");

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.RasterProcess#process()

         */

        public void process() throws InterruptedException {

                try {

                        // Proceso duro de obtener un histograma. Puede durar bastante tiempo.

                        lastHistogram = iHistogramable.getHistogram();

                        // Ya tenemos el histograma y lo representamos en la ventana

                        SwingUtilities.invokeLater(new Runnable() {

                                public void run() {

                                        if ((externalActions != null) && (lastHistogram != null))

                                                externalActions.end(lastHistogram);

                                }

                        });

                } catch (HistogramException e) {

                        NotificationManager.addError("Error calculando el histograma.", e);

                }

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.RasterProcess#getResult()

         */

        public Object getResult() {

                return lastHistogram;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.RasterProcess#getLog()

         */

        public String getLog() {

                return PluginServices.getText(this, "calculando_histograma") + "...\n";

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getPercent()

         */

        public int getPercent() {

                if (iHistogramable != null)

                        return iHistogramable.getPercent();

                return 0;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getTitle()

         */

        public String getTitle() {

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

        }

}