| gvSIG desktop 1

/* 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.enhanced.ui;

import java.awt.Color;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.text.NumberFormat;

import javax.swing.JFormattedTextField;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.text.DefaultFormatterFactory;

import javax.swing.text.NumberFormatter;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.raster.beans.previewbase.IUserPanelInterface;

import org.gvsig.raster.dataset.properties.DatasetColorInterpretation;

import org.gvsig.raster.datastruct.Histogram;

import org.gvsig.raster.datastruct.HistogramException;

import org.gvsig.raster.util.RasterToolsUtil;

import org.gvsig.rastertools.enhanced.graphics.InputHistogram;

import org.gvsig.rastertools.enhanced.graphics.OutputHistogram;

/**

 * Panel que contiene las gr?ficas para la modificaci?n del realce.

 * 

 * 19/02/2008

 * @author Nacho Brodin nachobrodin@gmail.com

 */

public class GraphicsPanel extends JPanel implements IUserPanelInterface {

        private static final long            serialVersionUID   = 1L;

        private InputHistogram               input              = null;

        private OutputHistogram              output             = null;

        private JPanel                       controls           = null;

        private JLabel                       lclipPercent       = null;

        private JFormattedTextField          tclipPercent       = null;

        private JLabel                       llevels            = null;

        private JFormattedTextField          tlevels            = null;

        private Histogram                    hist               = null;

        private DatasetColorInterpretation   ci                 = null;

        private double[]                     minList            = null;

        private double[]                     maxList            = null;

        /**

         * Crea una instancia del panel GraphicsPanel

         *

         */

        public GraphicsPanel(FLyrRasterSE lyr) {

                try {

                        hist = lyr.getDataSource().getHistogram();

                        ci = lyr.getDataSource().getColorInterpretation(0);

                        minList = lyr.getDataSource().getStatistics().getMin();

                        maxList = lyr.getDataSource().getStatistics().getMax();

                        if(minList == null)

                                minList = new double[]{0};

                        if(maxList == null)

                                maxList = new double[]{255};

                } catch (HistogramException e) {

                        hist = null;

                } catch (InterruptedException e) {

                        hist = null;

                }

                init();

        }

        /**

         * Inicializaci?n de los controles gr?ficos.

         */

        private void init() {

                setLayout(new GridBagLayout());

                setBorder(javax.swing.BorderFactory.createTitledBorder(null, RasterToolsUtil.getText(this, "histograms"), javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.insets = new Insets(4, 4, 4, 4);

                gbc.weightx = 1;

                gbc.weighty = 1;

                gbc.fill = GridBagConstraints.BOTH;

                add(getInputHistogram(), gbc);

                gbc.gridx = 1;

                add(getControls(), gbc);                

                gbc.gridx = 2;

                add(getOutputHistogram(), gbc);

                setClipPercentEnabled(true);

                setLevelsEnabled(false);

        }

        /**

         * Obtiene el gr?fico con el histograma de entrada

         * @return InputHistogram

         */

        public InputHistogram getInputHistogram() {

                if(input == null) {

                        input = new InputHistogram(hist, ci, minList, maxList);

                }

                return input;

        }

        /**

         * Obtiene el gr?fico con el histograma de salida

         * @return OutputHistogram

         */

        public OutputHistogram getOutputHistogram() {

                if(output == null) {

                        output = new OutputHistogram(hist, ci, minList, maxList);

                }

                return output;

        }

        /**

         * Obtiene el panel con los controles

         * @return JPanel

         */

        public JPanel getControls() {

                if(controls == null) {

                        controls = new JPanel();

                        controls.setLayout(new GridBagLayout());

                        lclipPercent = new JLabel(RasterToolsUtil.getText(null, "clip"));

                        llevels = new JLabel(RasterToolsUtil.getText(null, "levels"));

                        NumberFormat doubleDisplayFormat = NumberFormat.getNumberInstance();

                        doubleDisplayFormat.setMinimumFractionDigits(0);

                        NumberFormat doubleEditFormat = NumberFormat.getNumberInstance();

                        tclipPercent = new JFormattedTextField(new DefaultFormatterFactory(

                                                  new NumberFormatter(doubleDisplayFormat),

                                                  new NumberFormatter(doubleDisplayFormat),

                                                  new NumberFormatter(doubleEditFormat)));

                        tlevels = new JFormattedTextField(new DefaultFormatterFactory(

                                          new NumberFormatter(doubleDisplayFormat),

                                          new NumberFormatter(doubleDisplayFormat),

                                          new NumberFormatter(doubleEditFormat)));

                        GridBagConstraints gbc = new GridBagConstraints();

                        gbc.weightx = 1;

                        gbc.insets = new Insets(0, 5, 0, 5);

                        gbc.fill = GridBagConstraints.BOTH;

                        controls.add(lclipPercent, gbc);

                        gbc.gridy = 1;

                        controls.add(tclipPercent, gbc);                

                        gbc.gridy = 2;

                        controls.add(llevels, gbc);

                        gbc.gridy = 3;

                        controls.add(tlevels, gbc);

                }

                return controls;

        }

        /**

         * Activa o desactiva el control de porcentaje de recorte.

         * @param enabled

         */

        public void setClipPercentEnabled(boolean enabled) {

                tclipPercent.setEnabled(enabled);

                if(enabled)

                        tclipPercent.setBackground(Color.WHITE);

                else

                        tclipPercent.setBackground(getControls().getBackground());

        }

        /**

         * Activa o desactiva el control de niveles de posterizaci?n en level-slice

         * de recorte.

         * @param enabled

         */

        public void setLevelsEnabled(boolean enabled) {

                tlevels.setEnabled(enabled);

                if(enabled)

                        tlevels.setBackground(Color.WHITE);

                else

                        tlevels.setBackground(getControls().getBackground());

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.beans.previewbase.IUserPanelInterface#getPanel()

         */

        public JPanel getPanel() {

                return this;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.beans.previewbase.IUserPanelInterface#getTitle()

         */

        public String getTitle() {

                return "";

        }

        /**

         * Asigna el listener para gestionar el evento de movimiento de gr?ficos

         * @param listener

         */

        public void setListener(EnhancedListener listener) {

                getInputHistogram().setListener(listener);

        }

}