| gvSIG desktop 1

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

 *

 * Copyright (C) 2004 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.ui;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.Toolkit;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import org.cresques.i18n.Messages;

import org.gvsig.rastertools.histogram.Histogram;

/**

 * <code>HistogramIncrement</code>. Ventana de incremento para la construcci?n

 * del histograma

 *

 * @version 20/03/2007

 * @author Nacho Brodin (brodin_ign@gva.es)

 * @author Borja Sanchez Zamorano (borja.sanchez@iver.es)

 */

public class HistogramIncrement extends Thread {

        private HistogramPanelListener histogramPanelListener = null;

        private JPanel panel = null;

        private JLabel label = null;

        private JFrame window = new JFrame();

        /**

         * Constructor del <code>HistogramIncrement</code>.

         * @param hpl Se le pasa el objecto de {@link HistogramPanelListener}

         */

        public HistogramIncrement(HistogramPanelListener hpl){

                this.setHistogramPanelListener(hpl);

        }

        /**

         * Muestra la ventana de incremento con el porcentaje de la construcci?n del

         * histograma.

         */

        public void showWindow(){

                window.getContentPane().add(getJPanel());

                Dimension d = Toolkit.getDefaultToolkit().getScreenSize();

                window.setLocation(        ((int)d.getWidth()) >> 1, 

                                                    ((int)d.getHeight()) >> 1);

                window.setSize(200, 60);

                window.show();

                if(this.isAlive())

                        this.resume();

                else

                        this.start();

        }

        /**

         * Obtiene el panel del interior de la ventana de incremento

         * @return JPanel

         */

        private JPanel getJPanel(){

                if (panel == null){

                        FlowLayout f = new FlowLayout();

                        panel = new JPanel();

                        panel.setLayout(f);

                        label = new JLabel();

                        label.setText(Messages.getText("calculando... ") + 0  + "%");

                        panel.add(label, null);

                }

                return panel;

        }

        /**

         * Este thread va leyendo el porcentaje hasta que se completa el histograma.

         */

        public synchronized void run(){

                while(true){

                        Histogram hist = this.getHistogramPanelListener().getHistogram();

                        while (hist.getPercent() < 100){

                                label.setText(Messages.getText("calculando ...") +  hist.getPercent() +"%");

                                try {

                                        sleep(100);

                                } catch (InterruptedException e) {

                                        e.printStackTrace();

                                }

                        }

                        //Cerramos la ventana

                        window.hide();

                        window = null;

                        //Mostramos el resultado

                        this.getHistogramPanelListener().readFullHistogramFromThread();

                        this.suspend();

                }

        }

        /**

         * M?todo para obtener el {@link HistogramPanelListener}

         * @return <code>HistogramPanelListener</code>

         */

        public HistogramPanelListener getHistogramPanelListener() {

                return histogramPanelListener;

        }

        /**

         * Definir el {@link HistogramPanelListener}

         * @param hpl {@link HistogramPanelListener}

         */

        public void setHistogramPanelListener(HistogramPanelListener hpl) {

                histogramPanelListener = hpl;

        }

}