| 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.histogram.ui;

import java.awt.BorderLayout;

import java.awt.FlowLayout;

import java.util.ArrayList;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.table.DefaultTableModel;

import org.cresques.filter.RasterBuf;

import org.cresques.i18n.Messages;

import org.gvsig.gui.beans.buttonspanel.ButtonsPanel;

import org.gvsig.gui.beans.defaultbuttonspanel.DefaultButtonsPanel;

import org.gvsig.gui.beans.graphic.GraphicContainer;

import org.gvsig.gui.beans.table.TableContainer;

import org.gvsig.gui.beans.table.exceptions.NotInitializeException;

import org.gvsig.raster.util.Histogram;

import org.gvsig.raster.util.IHistogramable;

import org.gvsig.raster.util.RasterUtilities;

import org.gvsig.rastertools.histogram.HistogramPanelListener;

/**

 * <code>HistogramPanel</code>. Interfaz de usuario para la representaci?n de

 * histogramas.

 * 

 * @version 20/03/2007

 * @author Diego Guerrero (diego.guerrero@uclm.es)

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

 */

public class HistogramPanel extends DefaultButtonsPanel {

        private static final long serialVersionUID = 2772897994667886753L;

        /**

         * Objeto que controlara toda la carga pesada del panel

         */

        private HistogramPanelListener histogramPanelListener = null;

        /**

         * Array para la seleccion del origen

         */

        private ArrayList comboSource = new ArrayList();

        /**

         * Variable para controlar si se dispararan los eventos del panel,

         * si es la primera vez no tiene porque disparar eventos.

         */

        public boolean panelInizialited = false;

        /**

         * Componentes graficos

         */

        private GraphicContainer        graphicContainer = null;

        private JComboBox                                 jComboBoxOrigen = null;

        private JComboBox                                 jComboBoxTipo = null;

        private JButton                                         bTable = null;

        private TableContainer                tableContainer = null;

        private JPanel                                                 panelNorth = null;

        private JPanel                                                 panelSouth = null;

        private JTable                                                jTableBands = null;

        /**

         * Tipo de dato de la petici?n. Si la petici?n del histograma es de la vista el tipo

         * de dato ser? byte aunque la imagen sea de 16 bits. Si la petici?n es de los datos 

         * reales de la imagen entonces el tipo de dato de la petici?n coincide con el tipo

         * de datos de la imagen.

         */

        private int                                                        dataType = RasterBuf.TYPE_BYTE;

        /**

         * Crea un dialogo para los histogramas.

         *

         */

        public HistogramPanel() {

                super(ButtonsPanel.BUTTONS_CLOSE);

                histogramPanelListener = getHistogramPanelListener();

                initialize();

        }

        /**

         * This method initializes this

         * 

         */

        private void initialize() {

                this.setLayout(new BorderLayout(5, 5));

    this.add(getPanelNorth(), java.awt.BorderLayout.NORTH);

    this.add(getGraphicContainer(), java.awt.BorderLayout.CENTER);

    this.add(getPanelSouth(), java.awt.BorderLayout.SOUTH);

                this.setBorder(javax.swing.BorderFactory.createEmptyBorder(5, 5, 5, 5));

                getHistogramPanelListener().setControlListeners();

        }

        /**

         * This method initializes jPanel        

         *         

         * @return javax.swing.JPanel        

         */

        public GraphicContainer getGraphicContainer() {

                if (graphicContainer == null) {

                        graphicContainer = new GraphicContainer(true);

                }

                return graphicContainer;

        }

        /**

         * This method initializes jPanel        

         *         

         * @return javax.swing.JPanel        

         */

        private JPanel getPanelSouth() {

                if (panelSouth == null) {

                        panelSouth = new JPanel();

                        panelSouth.setLayout(new BorderLayout(5,5));

                        panelSouth.add(getTableContainer(), BorderLayout.CENTER);

                        JPanel jPanel2 = new JPanel();

      jPanel2.setLayout(new javax.swing.BoxLayout(jPanel2, javax.swing.BoxLayout.Y_AXIS));

      jPanel2.add(getBCreateTable());

                  jPanel2.setBorder(javax.swing.BorderFactory.createEmptyBorder(5, 5, 5, 5));

                  panelSouth.add(jPanel2, BorderLayout.EAST);

                }

                return panelSouth;

        }

        /**

         * Obtiene la tabla de estadisticas

         * @return

         */

        public TableContainer getTableContainer(){

                if(tableContainer == null){

                        String[] columnNames = {Messages.getText("banda"), Messages.getText("minimo"), Messages.getText("maximo"), Messages.getText("media"), Messages.getText("mediana"), Messages.getText("npixeles")};

                        int[] columnWidths = {50, 65, 65, 65, 65, 115};

                        tableContainer = new TableContainer(columnNames, columnWidths);

                        tableContainer.setControlVisible(true);

                        tableContainer.setModel("ListModel");

                        tableContainer.initialize();

                        tableContainer.setName("tableContainer");

                        tableContainer.setControlVisible(false);

                        try{

                                tableContainer.setEditable(false);

                        }catch(NotInitializeException ex){

                                System.out.println("Tabla no inicializada");

                        }        

                }

                return tableContainer;

        }

        /**

         * This method initializes jPanel        

         *         

         * @return javax.swing.JPanel        

         */

        private JPanel getPanelNorth() {

                if (panelNorth == null) {

                        panelNorth = new JPanel();

                        JPanel jPanel3 = new JPanel();

                        JScrollPane jScrollPane1 = new JScrollPane();

                        JPanel jPanel4 = new JPanel();

                        JPanel jPanel5 = new JPanel();

                        jScrollPane1.setPreferredSize(new java.awt.Dimension(120,65));

                        jScrollPane1.setViewportView(getJTableBands());

                        panelNorth.setLayout(new BorderLayout());

                        panelNorth.add(jPanel3, BorderLayout.CENTER);

                        panelNorth.add(jScrollPane1, BorderLayout.EAST);

                        jPanel3.setLayout(new BorderLayout());

                        jPanel3.add(jPanel4, BorderLayout.NORTH);

                        jPanel3.add(jPanel5, BorderLayout.SOUTH);

                        jPanel4.setLayout(new FlowLayout());

                        jPanel4.add(new JLabel(Messages.getText("origen")+":"));

                        jPanel4.add(getJComboBoxOrigen());

                        jPanel5.setLayout(new FlowLayout());

                        jPanel5.add(new JLabel(Messages.getText("tipo")+":"));

                        jPanel5.add(getJComboBoxTipo());

                }

                return panelNorth;

        }

        /**

         * Obtiene el combo con la selecci?n de tipo de histograma, acumulado/no acumulado

         * @return javax.swing.JComboBox        

         */

        public JComboBox getJComboBoxTipo() {

                if (jComboBoxTipo == null) {

                        String lista [] = new String[Histogram.getHistogramTypesCount()];

                        for (int i = 0; i < lista.length; i++) {

                                lista[i] = Messages.getText(Histogram.getType(i));

                        }

                        jComboBoxTipo = new JComboBox(lista);

                        jComboBoxTipo.addActionListener(getHistogramPanelListener());

                        jComboBoxTipo.setPreferredSize(new java.awt.Dimension(150, 25));

                }

                return jComboBoxTipo;

        }

        /**

         * Obtiene el combo con la selecci?n de la fuente de datos en el calculo del histograma,

         * datos de la vista, datos reales con el extent de la vista e imagen completa.

         * @return javax.swing.JComboBox        

         */

        public JComboBox getJComboBoxOrigen() {

                if (jComboBoxOrigen == null) {

                        jComboBoxOrigen = new JComboBox();

                        jComboBoxOrigen.addActionListener(getHistogramPanelListener());

                        jComboBoxOrigen.setPreferredSize(new java.awt.Dimension(150,25));

                }

                return jComboBoxOrigen;

        }

        /**

         *Asigna el combo "Origen" el valor de solo vista para el calculo del histograma. Esa opci?n es 

         *utilizada para extensiones que necesitan histograma pero no pueden acceder a la fuente de datos.

         */

        public void setOnlyViewValue(){

                getHistogramPanelListener().eventsEnabled = false;

                getJComboBoxOrigen().removeAllItems();

                getJComboBoxOrigen().addItem(Messages.getText("vista"));

                getHistogramPanelListener().eventsEnabled = panelInizialited;

        }

        /**

         * This method initializes jButton        

         *         

         * @return javax.swing.JButton        

         */

        public JButton getBCreateTable() {

                if (bTable == null) {

                        bTable = new JButton();

                        bTable.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);

                        bTable.setText(Messages.getText("crear_tabla"));

                        bTable.setName("bTable");

                        bTable.addActionListener(getHistogramPanelListener());

                        bTable.setPreferredSize(new java.awt.Dimension(150,25));

                }

                return bTable;

        }

        /**

         * This method initializes jComboBox

         *         

         * @return javax.swing.JComboBox        

         */

        public JTable getJTableBands() {

                getHistogramPanelListener().eventsEnabled = false;

                if (jTableBands == null) {

                        jTableBands = new JTable();

                        jTableBands.setModel(new javax.swing.table.DefaultTableModel(

          new Object [][] {},

          new String [] {

              " ", Messages.getText("bandas")

          }

      ) {

                                private static final long serialVersionUID = 0L;

                                        Class[] types = new Class [] {

              java.lang.Boolean.class, java.lang.String.class

          };

          boolean[] canEdit = new boolean [] {

              true, false

          };

          public Class getColumnClass(int columnIndex) {

              return types [columnIndex];

          }

          public boolean isCellEditable(int rowIndex, int columnIndex) {

              return canEdit [columnIndex];

          }

      });

                        jTableBands.addPropertyChangeListener(getHistogramPanelListener());

                        jTableBands.getColumnModel().getColumn(0).setPreferredWidth(20);

                        jTableBands.getColumnModel().getColumn(0).setResizable(false);

                }

                getHistogramPanelListener().eventsEnabled = panelInizialited;

                return jTableBands;

        }

        /**

         * Asigna el n?mero de bandas al combobox

         * @param bands N?mero de bandas de la imagen

         */

        public void setBands(int bands){

                getHistogramPanelListener().eventsEnabled = false;

                ((DefaultTableModel) getJTableBands().getModel()).setRowCount(0);

                for(int i = 0; i < bands; i++){

                        ((DefaultTableModel) getJTableBands().getModel()).addRow(new Object[] { new Boolean(true), "Band "+String.valueOf(i)});

                }

                getHistogramPanelListener().eventsEnabled = panelInizialited;

        }

        /**

         * Asigna la estadistica a la tabla

         * @param stat

         */

        public void setStatistic(long[][] stat){

                if(stat == null)

                        return;

                try {

                        getTableContainer().removeAllRows();

                        for(int iBand = 0; iBand < stat[0].length; iBand++){

                                Object[] list = new Object[stat.length + 1];

                                list[0] = new Integer(iBand);

                                for(int iStat = 1; iStat <= stat.length; iStat++)

                                        list[iStat] = new Long(stat[iStat - 1][iBand]);                                

                                getTableContainer().addRow(list);

                                list = null;

                        }

                } catch (NotInitializeException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

        /**

         * Resetea el control de bandas del panel con los valores RGB para 

         * cuando se est? haciendo el histograma de la visualizaci?n en

         * vez del histograma con los datos

         *

         */

        public void setRGBInBandList(){

                getHistogramPanelListener().eventsEnabled = false;

                ((DefaultTableModel) getJTableBands().getModel()).setRowCount(0);

                ((DefaultTableModel) getJTableBands().getModel()).addRow(new Object[] { new Boolean(true), "R"});

                ((DefaultTableModel) getJTableBands().getModel()).addRow(new Object[] { new Boolean(true), "G"});

                ((DefaultTableModel) getJTableBands().getModel()).addRow(new Object[] { new Boolean(true), "B"});

                getHistogramPanelListener().eventsEnabled = panelInizialited;

        }

        /**

         * Obtiene el valor de los controles en el rango 0-255. Los controles dan un rango en tanto por cien 0-100

         * pero para el calculo de estadisticas necesitamos un rango de valor de pixel. 

         * @return Array con los valores de ambos controles. El primer valor del array es el control de la derecha

         * y el segundo el de la izquierda.  

         */

        public double[] getBoxesValues(){

                double[] v = new double[2];

                double[] currentValues = new double[2];

                currentValues[0] = getGraphicContainer().getX2();

                currentValues[1] = getGraphicContainer().getX1();

                switch (dataType){

                        case RasterBuf.TYPE_BYTE:

                                v[0] = (currentValues[0] * RasterUtilities.MAX_BYTE_BIT_VALUE) / 100; 

                                v[1] = (currentValues[1] * RasterUtilities.MAX_BYTE_BIT_VALUE) / 100;

                                break;

                        case RasterBuf.TYPE_SHORT:

                                v[0] = (currentValues[0] * RasterUtilities.MAX_SHORT_BIT_VALUE) / 100;

                                v[1] = (currentValues[1] * RasterUtilities.MAX_SHORT_BIT_VALUE) / 100;

                                break;

                        case RasterBuf.TYPE_FLOAT:

                        case RasterBuf.TYPE_DOUBLE:

                                v[0] = (currentValues[0] * 63) / 100;

                                v[1] = (currentValues[1] * 63) / 100;

                                break;

                }

                return v;

        }

        public HistogramPanelListener getHistogramPanelListener() {

                if (histogramPanelListener == null) {

                        histogramPanelListener = new HistogramPanelListener(this);

                }

                return histogramPanelListener;

        }

        public void setHistogramableSource(IHistogramable lyr, String name) {

                getHistogramPanelListener().eventsEnabled = false;

                ArrayList aux = new ArrayList();

                aux.add(lyr);

                aux.add(name);

                comboSource.add(aux);

                updateComboBoxSource();

                getHistogramPanelListener().eventsEnabled = panelInizialited;

        }

        public ArrayList getComboSource() {

                return comboSource;

        }

        private void updateComboBoxSource() {

                getHistogramPanelListener().eventsEnabled = false;

                getJComboBoxOrigen().removeAllItems();

                for (int i = 0; i < comboSource.size(); i++) {

                        getJComboBoxOrigen().addItem(((ArrayList) comboSource.get(i)).get(1));

                }

                getHistogramPanelListener().eventsEnabled = panelInizialited;

        }

        public void clearSources() {

                comboSource = new ArrayList();

                updateComboBoxSource();

        }

        public void refreshBands() {

                //En caso de que el histograma se monte a partir de los datos de la vista ponemos RGB en el combo

                int bandCount = getHistogramPanelListener().getLastHistogram().getNumBands();

                if ((getJComboBoxOrigen().getSelectedIndex() == 0) && (bandCount == 3)) {

                        setRGBInBandList();

                } else {

                        setBands(bandCount);

                }

        }

        public void firstRun() {

                getHistogramPanelListener().showHistogram();

        }

        public void setDataType(int dataType) {

                this.dataType = dataType;

        }

        public int getDataType() {

                return dataType;

        }

}