Application: gvSIG desktop

/* 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 org.gvsig.gui.beans.incrementabletask.IIncrementable;

import org.gvsig.gui.beans.incrementabletask.IncrementableEvent;

import org.gvsig.gui.beans.incrementabletask.IncrementableListener;

import org.gvsig.gui.beans.incrementabletask.IncrementableTask;

import org.gvsig.raster.util.Histogram;

import org.gvsig.raster.util.HistogramException;

import org.gvsig.raster.util.IHistogramable;

import com.iver.andami.PluginServices;

/**

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

 */

public class HistogramProcess implements Runnable, IIncrementable, IncrementableListener {

        IHistogramable iHistogramable = null;

        HistogramPanelListener hpl = null;

        IncrementableTask incrementableTask = null;

        private volatile Thread blinker;

        /**

         * Constructor del Proceso de calculo de histogramas.

         * @param iHistogramable

         * @param hpl

         */

        public HistogramProcess(IHistogramable iHistogramable, HistogramPanelListener hpl) {

                this.iHistogramable = iHistogramable;

                this.hpl = hpl;

        }

        /**

         * Lanzar el Thread del proceso de calculo de histograma.

         */

        public void start() {

                blinker = new Thread(this);

                blinker.start();

        }

        /*

         * (non-Javadoc)

         * @see java.lang.Runnable#run()

         */

        public void run() {

                try {

                        // Definimos que no esta cancelado para que no termine antes de empezar.

                        iHistogramable.setCanceled(false, IHistogramable.CANCEL_HISTOGRAM);

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

                        Histogram histogram = iHistogramable.getHistogram();

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

                        if (histogram != null) hpl.setNewHistogram(histogram);

                } catch (HistogramException e) {

                        e.printStackTrace();

                }

                // Cerramos la ventana de incremento de manera correcta.

                incrementableTask.processFinalize();

        }

        /**

         * Definir el IncrementableTask 

         * @param value

         */

        public void setIncrementableTask(IncrementableTask value) {

                incrementableTask = value;

                incrementableTask.addIncrementableListener(this);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.IncrementableTask.IIncrementable#getLabel()

         */

        public String getLabel() {

                return PluginServices.getText(this, "generando_histograma") + "...";

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.IncrementableTask.IIncrementable#getLog()

         */

        public String getLog() {

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

        }

        /*

         * (non-Javadoc)

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

         */

        public int getPercent() {

                return iHistogramable.getPercent();

        }

        /*

         * (non-Javadoc)

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

         */

        public String getTitle() {

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

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IncrementableListener#actionCanceled(org.gvsig.gui.beans.incrementabletask.IncrementableEvent)

         */

        public void actionCanceled(IncrementableEvent e) {

                iHistogramable.setCanceled(true, IHistogramable.CANCEL_HISTOGRAM);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IncrementableListener#actionResumed(org.gvsig.gui.beans.incrementabletask.IncrementableEvent)

         */

        public void actionResumed(IncrementableEvent e) {

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.incrementabletask.IncrementableListener#actionSuspended(org.gvsig.gui.beans.incrementabletask.IncrementableEvent)

         */

        public void actionSuspended(IncrementableEvent e) {

        }

}