Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* 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., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

package org.gvsig.raster.wcs.app.wcsclient.gui.wizard;

import java.awt.Component;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.geom.Rectangle2D;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URL;

import java.util.Properties;

import java.util.prefs.Preferences;

import javax.swing.DefaultComboBoxModel;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import org.gvsig.andami.Launcher;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.PluginsLocator;

import org.gvsig.andami.persistence.serverData.ServerDataPersistence;

import org.gvsig.app.gui.WizardPanel;

import org.gvsig.app.gui.wizards.WizardListener;

import org.gvsig.app.gui.wizards.WizardListenerSupport;

import org.gvsig.compat.net.ICancellable;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.coverage.exception.ConnectException;

import org.gvsig.fmap.dal.coverage.exception.RemoteServiceException;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException;

import org.gvsig.fmap.dal.exception.ValidateDataParametersException;

import org.gvsig.fmap.mapcontext.exceptions.ProjectionLayerException;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.gui.beans.Messages;

import org.gvsig.raster.cache.tile.TileCacheLibrary;

import org.gvsig.raster.util.CancelTaskImpl;

import org.gvsig.raster.wcs.app.wcsclient.gui.panel.WCSParamsPanel;

import org.gvsig.raster.wcs.io.WCSProvider;

import org.gvsig.raster.wcs.io.WCSServerExplorer;

import org.gvsig.raster.wcs.io.WCSServerExplorerParameters;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.utils.swing.jcomboServer.JComboServer;

import org.gvsig.utils.swing.jcomboServer.ServerData;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * The WCS properties container panel.

 *

 * @author Jaume Dominguez Faus

 */

public class WCSWizard extends WizardPanel implements ActionListener {

        final static private Logger           logger = LoggerFactory.getLogger(WCSWizard.class);

        private static final long             serialVersionUID   = 1L;

        private String                        pluginName             = "org.gvsig.raster.wcs.app.wcsclient";

        private File                          pluginPersistenceFile  = null;

        private File                          serverPropertiesFile   = null;

        private ServerDataPersistence         serverDataPersistence  = null;

        private String                        serversPropsFile       = "servers.properties";

        protected int                         page               = 0;

        protected boolean                     connected          = false;

        private JComboServer                  cmbHost            = null;

        private JButton                       btnConnect         = null;

        private JButton                       btnCancel          = null;

        private JPanel                        jPanel             = null;

        private JLabel                        jLabel1            = null;

        private JLabel                        lblTitle           = null;

        private JScrollPane                   jScrollPane        = null;

        private JTextArea                     txtAbstract        = null;

        private JPanel                        panelPage1         = null;

        private JButton                       btnSiguiente       = null;

        private JButton                       btnAnterior        = null;

        private JPanel                        jPanel1            = null;

        protected WizardListenerSupport       listenerSupport    = new WizardListenerSupport();

        protected WCSParamsPanel              wcsParamsPanel     = null;

        protected JLabel                      lblServerType      = null;

        protected JLabel                      lblServerTypeValue = null;

        private JCheckBox                     chkCaching         = null;

        private static Preferences            fPrefs             = Preferences.userRoot().node( "gvsig.wcs-wizard" );

        private boolean                       usingTileCache     = fPrefs.getBoolean("tile_cache", false);

        private JCheckBox                     chkTileCache       = null;

        private boolean                       refreshing         = fPrefs.getBoolean("refresh_capabilities", false);

        protected int                         firstPage          = 0;

        private JPanel                        pnlName            = null;

        private ICancellable                  cancel             = null;

        private WCSServerExplorer             explorer           = null;

        public WCSWizard (WCSParamsPanel params) {

                super();

                firstPage = 1;

                page = firstPage;

                this.wcsParamsPanel = params;

                this.explorer = wcsParamsPanel.getExplorer();

                setTabName("WCS");

                lblServerType = new JLabel();

                lblServerType.setBounds(20, 444, 100, 20);

                lblServerType.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);

                lblServerType.setHorizontalTextPosition(javax.swing.SwingConstants.RIGHT);

                lblServerType.setFont(new java.awt.Font("Arial", java.awt.Font.PLAIN, 11));

                lblServerType.setText(PluginServices.getText(this, "server_type")+":");

                lblServerTypeValue = new JLabel();

                lblServerTypeValue.setBounds(128, 444, 148, 20);

                lblServerTypeValue.setFont(new java.awt.Font("Arial", java.awt.Font.BOLD, 11));

                lblServerTypeValue.setText("-");

                this.setSize(510, 468);

                this.setLayout(null);

                this.setPreferredSize(new java.awt.Dimension(750, 420));

                this.setVisible(true);

                wcsParamsPanel.setListenerSupport(this.listenerSupport);

                wcsParamsPanel.setBounds(0, 5, 510, 428);

                wcsParamsPanel.getJTabbedPane().addMouseListener(

                                new java.awt.event.MouseAdapter() {

                                        public void mouseClicked(java.awt.event.MouseEvent e) {

                                                page = wcsParamsPanel.currentPage() + 1;

                                                activarVisualizarBotones();

                                        }

                                });

                this.add(wcsParamsPanel, null);

                this.add(lblServerType, null);

                this.add(lblServerTypeValue, null);

                getWCSParamsPanel().setVisible(true);

                connected = true;

        }

        /**

         * This is the default constructor

         */

        public WCSWizard() {

                super();

                firstPage = 0;

                page = firstPage;

                initialize();

                /*IWindow[] windows = PluginServices.getMDIManager().getAllWindows();

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

                        if(windows[i] instanceof AbstractViewPanel)

                                proj = ((AbstractViewPanel)windows[i]).getProjection();

                }*/

                cancel = new CancelTaskImpl();

        }

        /**

         * This method initializes this

         */

        private void initialize() {

                setTabName("WCS");

                lblServerType = new JLabel();

                lblServerType.setBounds(20, 444, 100, 20);

                lblServerType.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);

                lblServerType.setHorizontalTextPosition(javax.swing.SwingConstants.RIGHT);

                lblServerType.setFont(new java.awt.Font("Arial", java.awt.Font.PLAIN, 11));

                lblServerType.setText(PluginServices.getText(this, "server_type")+":");

                lblServerTypeValue = new JLabel();

                lblServerTypeValue.setBounds(128, 444, 148, 20);

                lblServerTypeValue.setFont(new java.awt.Font("Arial", java.awt.Font.BOLD, 11));

                lblServerTypeValue.setText("-");

                this.setSize(510, 468);

                this.setLayout(null);

                this.setPreferredSize(new java.awt.Dimension(750, 420));

                this.setVisible(true);

                this.add(getPanelPage1(), null);

                this.add(getWCSParamsPanel(), null);

                this.add(getBtnAnterior(), null);

                this.add(getBtnSiguiente(), null);

                this.add(lblServerType, null);

                this.add(lblServerTypeValue, null);

                activarVisualizarBotones();

        }

        protected JPanel getWCSParamsPanel(){

                if (wcsParamsPanel == null){

                        wcsParamsPanel = new WCSParamsPanel();

                        wcsParamsPanel.setListenerSupport(this.listenerSupport);

                        wcsParamsPanel.setBounds(0, 5, 510, 428);

                        wcsParamsPanel.getJTabbedPane().addMouseListener(

                                        new java.awt.event.MouseAdapter() {

                                                public void mouseClicked(java.awt.event.MouseEvent e) {

                                                        page = wcsParamsPanel.currentPage() + 1;

                                                        activarVisualizarBotones();

                                                }

                                        });

                }

                return wcsParamsPanel;

        }

        /**

         * This method checks for the options selected within the configuration

         * dialog are correct.

         *

         * @return true if you're done, false if not.

         */

        public boolean areSettingsValid() {

                return wcsParamsPanel.isCorrectlyConfigured();

        }

        /**

         * Thread to connect to a WCS server

         * @author Nacho Brodin (nachobrodin@gmail.com)

         */

        public class ConnectThread extends Thread {

                private ICancellable             cancel      = null;

                private WCSServerExplorer        explorer    = null;

                private WCSWizard                wizard      = null;

                public ConnectThread(ICancellable cancel, WCSServerExplorer explorer, WCSWizard wizard) {

                        this.cancel = cancel;

                        this.explorer = explorer;

                        this.wizard = wizard;

                }

            public void run() {

                    if(!checkHostAndNetwork())

                            return;

                    try {

                            explorer.connect(cancel);

                            saveServerListFromComboBox();

                        } catch (ConnectException e) {

                                String msg = e.getMessage() + " : " + getIOExceptionMessage(e);

                                logger.info(msg, e);

                                JOptionPane.showMessageDialog(getWCSParamsPanel(), msg, Messages.getText("Error"), JOptionPane.ERROR_MESSAGE);

                                return;

                        } finally {

                                ((CancelTaskImpl)cancel).setCanceled(false);

                        }

                        //storeParams = (WCSDataParameters)explorer.getStoreParameters();

                        wizard.rellenarControles();

            }

            /**

                 * Gets the <code>IOException</code> message. The message 

                 * of this exception is returned by the server

                 * @param e

                 * @return

                 */

                private String getIOExceptionMessage(Exception e) {

                        Throwable ex = e;

                        final int MAX_DEEP = 10;

                        int deep = 0;

                        while(deep < MAX_DEEP) {

                                Throwable t = null;

                                if(ex instanceof IOException) {

                                        return ex.getMessage();

                                } else if(ex instanceof RemoteServiceException) {

                                        t = ex.getCause();

                                }

                                if(t == null)

                                        return null;

                                else

                                        ex = t;

                                deep++;

                        }

                        return null;

                }

        }

        /**

         * Checks if the network and host are reachable

         * @return true if both are reachable and false if they are not

         */

        private boolean checkHostAndNetwork() {

                if(!explorer.isHostReachable()) {

                        JOptionPane.showMessageDialog(null, Messages.getText("host_unreachable"), Messages.getText("Error"), JOptionPane.ERROR_MESSAGE);

                        logger.info(Messages.getText("host_unreachable"));

                        return false;

                }

                return true;

        }

        /**

         * DOCUMENT ME!

         */

        private void rellenarControles() {

                try {

                        //String host = cmbHost.getModel().getSelectedItem().toString();

                        lblTitle.setText(explorer.getTitle());

                        lblServerTypeValue.setText(explorer.getServerType());

                        txtAbstract.setText(explorer.getAbstract());

                        wcsParamsPanel.setWizardData(explorer);

                        connected = true;

                        activarVisualizarBotones();

                } catch (Exception e) {

                        if (e.getMessage()==null) {

                                txtAbstract.setText(PluginServices.getText(this,"error"));

                        } else {

                                txtAbstract.setText(e.getMessage());

                        }

                        listenerSupport.callError(e);

                        getBtnSiguiente().setEnabled(false);

                        getBtnAnterior().setEnabled(true);

                } finally {

                        getBtnCancel().setEnabled(false);

                }

        }

        @SuppressWarnings("deprecation")

        public void actionPerformed(ActionEvent e) {

                if(e.getSource() == getBtnConnect()) {

                        getBtnCancel().setEnabled(true);

                        getTxtAbstract().setText("Trying to connect...");

                        String host = cmbHost.getModel().getSelectedItem().toString();

                        try {

                                DataManager datamanager = DALLocator.getDataManager();

                                WCSServerExplorerParameters explorerParams = (WCSServerExplorerParameters) datamanager.createServerExplorerParameters(WCSProvider.NAME);

                                explorerParams.setHost(host);

                                explorer = (WCSServerExplorer) datamanager.createServerExplorer(explorerParams);

                                ((CancelTaskImpl)cancel).setCanceled(false);

                                new ConnectThread(cancel, explorer, this).start();

                        } catch (InitializeException e1) {

                                getTxtAbstract().setText("Error creating WCS layer");

                        } catch (ProviderNotRegisteredException e1) {

                                getTxtAbstract().setText("Provider not registered. I cannot connect.");

                        } catch (ValidateDataParametersException e1) {

                                getTxtAbstract().setText("Parameters not valid. I cannot connect.");

                        }

                }

                if(e.getSource() == getBtnCancel()) {

                        getTxtAbstract().setText("Cancelled...");

                        ((CancelTaskImpl)cancel).setCanceled(true);

                        getBtnCancel().setEnabled(false);

                }

        }

        /**

         * DOCUMENT ME!

         */

        protected void activarVisualizarBotones() {

                if (page == firstPage) {

                        getBtnAnterior().setEnabled(false);

                        getBtnSiguiente().setVisible(true);

                        if (connected) {

                                getBtnSiguiente().setEnabled(true);

                        } else {

                                getBtnSiguiente().setEnabled(false);

                        }

                } else if (page < wcsParamsPanel.getNumTabs()) {

                        getBtnSiguiente().setEnabled(true);

                        getBtnSiguiente().setVisible(true);

                        getBtnAnterior().setEnabled(true);

                        getBtnAnterior().setVisible(true);

                        if (wcsParamsPanel.nextEnabledPage()==-1){

                                getBtnSiguiente().setEnabled(false);

                        }

                        listenerSupport.callStateChanged(wcsParamsPanel.isCorrectlyConfigured());

                } else if (page == wcsParamsPanel.getNumTabs()) {

                        getBtnSiguiente().setVisible(false);

                        getBtnSiguiente().setEnabled(false);

                        listenerSupport.callStateChanged(wcsParamsPanel.isCorrectlyConfigured());

                }

        }

        /**

         * This method initializes txtHost

         *

         * @return javax.swing.JTextField

         */

        private javax.swing.JComboBox getTxtHost() {

                if (cmbHost == null) {

                        cmbHost = new JComboServer();

                        cmbHost.setModel(new DefaultComboBoxModel());

                        cmbHost.setPreferredSize(new java.awt.Dimension(350, 20));

                        cmbHost.setBounds(11, 26, 454, 20);

                        cmbHost.setEditable(true);

                        cmbHost.setServerList(getServerDataPersistence().getArrayOfServerData());

                }

                return cmbHost;

        }

        /**

         * Gets the list of servers that have been persisted or added in the properties file

         * @return

         */

        private ServerDataPersistence getServerDataPersistence() {

                if(serverDataPersistence == null) {

                        PersistenceManager persistenceManager = ToolsLocator.getPersistenceManager();

                        //Lee los servidores de la persistencia

                        try {

                                FileInputStream is = new FileInputStream(getPluginPersistenceFile());

                                serverDataPersistence = (ServerDataPersistence) persistenceManager.getObject(is);

                        } catch (FileNotFoundException e) {

                                logger.info("Persistence file not found for WMS plugin", e);

                        }

                        if(serverDataPersistence == null)

                                serverDataPersistence = new ServerDataPersistence(ServerData.SERVER_TYPE_WCS);

                        //Lee los servidores del properties y los mezcla con los que hay en la persistencia

                        Properties prop = new Properties();

                        try {

                                prop.load(new FileInputStream(getServerPropertiesFile()));

                        } catch (FileNotFoundException e) {

                                logger.info("Properties file not found for WMS plugin", e);

                        } catch (IOException e) {

                                logger.info("Error reading properties file", e);

                        }

                        boolean newProjectServers = false;

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

                                Object value = prop.get("server[" + i + "]");

                                if(!serverDataPersistence.existsServer(value.toString())) {

                                        serverDataPersistence.addServerData(new ServerData(value.toString(), ServerData.SERVER_TYPE_WCS));

                                        newProjectServers = true;

                                }

                        }

                        //Si hay servidores nuevos los persiste

                        if(newProjectServers) {

                                try {

                                        FileOutputStream os = new FileOutputStream(getPluginPersistenceFile());

                                        persistenceManager.putObject(os, serverDataPersistence);

                                } catch (FileNotFoundException e) {

                                        logger.info("Persistence file not found for WMS plugin", e);

                                }

                        }

                }

                return serverDataPersistence;

        }

        /**

         * Saves the list of server reading from the <code>ComboBox</code>

         */

        private void saveServerListFromComboBox() {

                PersistenceManager persistenceManager = ToolsLocator.getPersistenceManager();

                ServerDataPersistence persistence = new ServerDataPersistence(ServerData.SERVER_TYPE_WCS);

                String urlSelected = getTxtHost().getModel().getSelectedItem().toString();

                boolean isSelectedInModel = false;

                for (int i = 0; i < getTxtHost().getItemCount(); i++) {

                        String url = getTxtHost().getItemAt(i).toString();

                        persistence.addServerData(new ServerData(url, ServerData.SERVER_TYPE_WCS));

                        if(url.equals(urlSelected))

                                isSelectedInModel = true;

                }

                if(!isSelectedInModel)

                        persistence.addServerData(new ServerData(urlSelected, ServerData.SERVER_TYPE_WCS));

                if(getServerDataPersistence().compareTo(persistence) != 0) {

                        try {

                                FileOutputStream os = new FileOutputStream(getPluginPersistenceFile());

                                persistenceManager.putObject(os, persistence);

                        } catch (FileNotFoundException e) {

                                logger.info("Persistence file not found for WMS plugin", e);

                        }

                }

        }

        /**

         * Gets the persistence file of this plugin

         * @return

         */

        private File getPluginPersistenceFile() {

                if(pluginPersistenceFile == null) {

                        File persistenceFolder = new File(Launcher.getAppHomeDir()

                                        + File.separator + "plugins" + File.separator + pluginName);

                        if (!persistenceFolder.exists()) {

                                persistenceFolder.mkdirs();

                        }

                        pluginPersistenceFile = new File(persistenceFolder.getAbsolutePath() + 

                                File.separator + 

                                "plugin-persistence.dat");

                }

                return pluginPersistenceFile;

        }

        /**

         * Gets the file which contains the default list of servers

         * @return

         */

        private File getServerPropertiesFile() {

                if(serverPropertiesFile == null) {

                        File pluginFolder = PluginsLocator.getManager().getPluginsFolder();

                        serverPropertiesFile = new File(pluginFolder.getAbsolutePath() + 

                                        File.separator + 

                                        pluginName + 

                                        File.separator + 

                                        serversPropsFile);

                }

                return serverPropertiesFile;

        }

        /**

         * This method initializes btnDetalles

         *

         * @return javax.swing.JButton

         */

        private JButton getBtnConnect() {

                if (btnConnect == null) {

                        btnConnect = new JButton();

                        btnConnect.setPreferredSize(new java.awt.Dimension(100, 20));

                        btnConnect.setBounds(262, 50, 100, 20);

                        btnConnect.setText(PluginServices.getText(this, "conectar"));

                        btnConnect.addActionListener(this);

                }

                return btnConnect;

        }

        /**

         * This method initializes btnDetalles

         *

         * @return javax.swing.JButton

         */

        private JButton getBtnCancel() {

                if (btnCancel == null) {

                        btnCancel = new JButton();

                        btnCancel.setEnabled(false);

                        btnCancel.setPreferredSize(new java.awt.Dimension(100, 20));

                        btnCancel.setBounds(366, 50, 100, 20);

                        btnCancel.setText(PluginServices.getText(this, "cancel"));

                        btnCancel.addActionListener(this);

                }

                return btnCancel;

        }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private javax.swing.JPanel getJPanel() {

                if (jPanel == null) {

                        jPanel = new javax.swing.JPanel();

                        jPanel.setLayout(null);

                        jPanel.setPreferredSize(new java.awt.Dimension(470, 130));

                        jPanel.setBorder(javax.swing.BorderFactory.createTitledBorder(

                                        null, PluginServices.getText(this, "description"),

                                        javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION,

                                        javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                        jPanel.setBounds(2, 116, 477, 304);

                        jPanel.add(getJScrollPane(), null);

                        jPanel.add(getPnlName(), null);

                }

                return jPanel;

        }

        /**

         * This method initializes jLabel1

         *

         * @return javax.swing.JLabel

         */

        private javax.swing.JLabel getJLabel1() {

                if (jLabel1 == null) {

                        jLabel1 = new javax.swing.JLabel();

                        jLabel1.setText(PluginServices.getText(this, "name") + ":");

                }

                return jLabel1;

        }

        /**

         * This method initializes lblTitle

         *

         * @return javax.swing.JLabel

         */

        private javax.swing.JLabel getLblTitle() {

                if (lblTitle == null) {

                        lblTitle = new javax.swing.JLabel();

                        lblTitle.setText("-");

                }

                return lblTitle;

        }

        /**

         * This method initializes jScrollPane

         *

         * @return javax.swing.JScrollPane

         */

        private javax.swing.JScrollPane getJScrollPane() {

                if (jScrollPane == null) {

                        jScrollPane = new javax.swing.JScrollPane();

                        jScrollPane.setViewportView(getTxtAbstract());

                        jScrollPane.setPreferredSize(new java.awt.Dimension(450, 60));

                        jScrollPane.setBounds(10, 47, 457, 247);

                }

                return jScrollPane;

        }

        /**

         * This method initializes txtAbstract

         *

         * @return javax.swing.JTextArea

         */

        private javax.swing.JTextArea getTxtAbstract() {

                if (txtAbstract == null) {

                        txtAbstract = new javax.swing.JTextArea();

                        txtAbstract.setWrapStyleWord(true);

                        txtAbstract.setColumns(30);

                        txtAbstract.setLineWrap(true);

                }

                return txtAbstract;

        }

        private javax.swing.JPanel getPanelPage1() {

                if (panelPage1 == null) {

                        panelPage1 = new JPanel();

                        panelPage1.setLayout(null);

                        panelPage1.setPreferredSize(new java.awt.Dimension(480, 220));

                        panelPage1.setVisible(true);

                        panelPage1.setBounds(15, 5, 480, 427);

                        panelPage1.add(getJPanel1(), null);

                        panelPage1.add(getJPanel(), null);

                }

                return panelPage1;

        }

        /**

         * This method initializes btnSiguiente

         *

         * @return javax.swing.JButton

         */

        private javax.swing.JButton getBtnSiguiente() {

                if (btnSiguiente == null) {

                        btnSiguiente = new JButton();

                        btnSiguiente.setPreferredSize(new java.awt.Dimension(100, 30));

                        btnSiguiente.setBounds(395, 444, 100, 20);

                        btnSiguiente.setText(PluginServices.getText(this, "siguiente"));

                        btnSiguiente.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        if(page == firstPage && getChkTileCache().isSelected()) {

                                                messageBoxInfo("remote_service_tiled", TileCacheLibrary.ALTERNATIVE_TILESIZE + "", this);

                                        }

                                        if (page > firstPage) {

                                                // si page es mayor que cero, vamos enfocando las

                                                // sucesivas SOLAPAS del WCSParamsPanel

                                                wcsParamsPanel.avanzaTab();

                                                page = wcsParamsPanel.currentPage();

                                        }

                                        page++;

                                        getPanelPage1().setVisible(false);

                                        getWCSParamsPanel().setVisible(true);

                                        activarVisualizarBotones();

                                }

                        });

                }

                return btnSiguiente;

        }

        /**

         * Shows an information dialog with a text and a accept button 

         * @param msg Message to show in the dialog

         * @param parentWindow Parent window

         */

        public static void messageBoxInfo(String msg, String fixedText, Object parentWindow){

                String string = PluginServices.getText(parentWindow, "accept");

                Object[] options = {string};

                JOptionPane.showOptionDialog((Component)PluginServices.getMainFrame(),

                                        "<html>" + PluginServices.getText(parentWindow, msg).replaceAll("\n", "<br>") + " " + fixedText + "</html>",

                                        PluginServices.getText(parentWindow, "confirmacion"),

                                        JOptionPane.OK_OPTION,

                                        JOptionPane.INFORMATION_MESSAGE,

                                        null,

                                        options,

                                        string);

        }

        /**

         * This method initializes btnAnterior

         *

         * @return javax.swing.JButton

         */

        private javax.swing.JButton getBtnAnterior() {

                if (btnAnterior == null) {

                        btnAnterior = new JButton();

                        btnAnterior.setBounds(292, 444, 100, 20);

                        btnAnterior.setPreferredSize(new java.awt.Dimension(100, 30));

                        btnAnterior.setText(PluginServices.getText(this, "anterior"));

                        btnAnterior.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        page --;

                                        if (page > firstPage) {

                                                // Tenemos que retroceder en el wcsParamsPanel

                                                wcsParamsPanel.retrocedeTab();

                                                page = wcsParamsPanel.currentPage() + 1;

                                                activarVisualizarBotones();

                                        } else if (page==firstPage){

                                                activarVisualizarBotones();

                                                page = firstPage +1;

                                                getLblTitle().setText("-");

                                                getTxtAbstract().setText("");

                                                wcsParamsPanel.retrocedeTab();

                                                getPanelPage1().setVisible(true);

                                                getWCSParamsPanel().setVisible(false);

                                                getBtnSiguiente().setEnabled(false);

                                                connected = false;

                                        }

                                        listenerSupport.callStateChanged(wcsParamsPanel.isCorrectlyConfigured());

                                }

                        });

                }

                return btnAnterior;

        }

        private javax.swing.JPanel getJPanel1() {

                if (jPanel1 == null) {

                        jPanel1 = new javax.swing.JPanel();

                        jPanel1.setLayout(null);

                        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(

                                        null, PluginServices.getText(this, "server"),

                                        javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION,

                                        javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                        jPanel1.setBounds(2, 5, 477, 105);

                        jPanel1.add(getTxtHost(), null);

                        jPanel1.add(getBtnConnect(), null);

                        jPanel1.add(getBtnCancel(), null);

                        jPanel1.add(getChkCaching(), null);

                        jPanel1.add(getChkTileCache(), null);

                }

                return jPanel1;

        }

        /**

         * DOCUMENT ME!

         *

         * @param listener

         */

        public void addWizardListener(WizardListener listener) {

                listenerSupport.addWizardListener(listener);

        }

        /**

         * DOCUMENT ME!

         *

         * @param listener

         */

        public void removeWizardListener(WizardListener listener) {

                listenerSupport.removeWizardListener(listener);

        }

        /**

         * DOCUMENT ME!

         *

         * @return DOCUMENT ME!

         * @throws ProjectionLayerException

         */

        public Rectangle2D getLayersRectangle() throws ProjectionLayerException {

                //return wcsParamsPanel.getLayersRectangle();

                return null;

        }

        /**

         * Devuelve el host que est� escrito en el cuadro de texto del host o null

         * en caso de que no haya nada escrito o est� mal escrito

         *

         * @return URL del host

         */

        public URL getHost() {

                try {

                        if ((cmbHost == null)|| (cmbHost.getModel().getSelectedItem() == null)) {

                                return new URL(explorer.getHost());

                        } else {

                                return new URL(cmbHost.getModel().getSelectedItem().toString());

                        }

                } catch (MalformedURLException e) {

                        return null;

                }

        }

        /**

         * DOCUMENT ME!

         *

         * @return Nombre de la capa que aparece en el TOC.

         */

        public String getLayerName() {

                return wcsParamsPanel.getLayerName();

        }

        public void initWizard() {

        }

        public void execute() {

                try {

                        FLayer layer = wcsParamsPanel.getLayer(getChkTileCache().isSelected());

                        if(layer == null)

                                return;

                        this.getMapCtrl().getMapContext().getLayers().addLayer(layer);

                } catch (InitializeException e) {

                        logger.info("The layer cannot be added", e);

                }

        }

        /**

         * This method initializes chkCaching

         *

         * @return javax.swing.JCheckBox

         */

        private JCheckBox getChkCaching() {

                if (chkCaching == null) {

                        chkCaching = new JCheckBox();

                        chkCaching.setBounds(7, 51, 249, 20);

                        chkCaching.setText(PluginServices.getText(this, "refresh_capabilities"));

                        chkCaching.setToolTipText(PluginServices.getText(this, "refresh_capabilities_tooltip"));

                        chkCaching.setSelected(refreshing);

                        chkCaching.addItemListener(new java.awt.event.ItemListener() {

                                public void itemStateChanged(java.awt.event.ItemEvent e) {

                                        refreshing = chkCaching.isSelected();

                                }

                        });

                        chkCaching.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        fPrefs.putBoolean("refresh_capabilities", chkCaching.isSelected());

                                }

                        });

                }

                return chkCaching;

        }

        /**

         * This method initializes chkCaching

         *

         * @return javax.swing.JCheckBox

         */

        private JCheckBox getChkTileCache() {

                if (chkTileCache == null) {

                        chkTileCache = new JCheckBox();

                        chkTileCache.setBounds(7, 72, 249, 20);

                        chkTileCache.setText(PluginServices.getText(this, "tile_cache"));

                        chkTileCache.setToolTipText(PluginServices.getText(this, "tile_cache_tooltip"));

                        chkTileCache.setSelected(usingTileCache);

                        chkTileCache.addItemListener(new java.awt.event.ItemListener() {

                                public void itemStateChanged(java.awt.event.ItemEvent e) {

                                        usingTileCache = chkTileCache.isSelected();

                                }

                        });

                        chkTileCache.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        fPrefs.putBoolean("tile_cache", chkTileCache.isSelected());

                                }

                        });

                }

                return chkTileCache;

        }

        /**

         * This method initializes pnlName

         *

         * @return javax.swing.JPanel

         */

        private JPanel getPnlName() {

                if (pnlName == null) {

                        pnlName = new JPanel(new FlowLayout(FlowLayout.LEFT, 10, 0));

                        pnlName.setBounds(new java.awt.Rectangle(9,19,452,24));

                        pnlName.add(getJLabel1(), null);

                        pnlName.add(getLblTitle(), null);

                }

                return pnlName;

        }

        @Override

        public DataStoreParameters[] getParameters() {

                // TODO Auto-generated method stub

                return null;

        }

        @Override

        public void close() {

                // Nothing to do

        }

}  //  @jve:decl-index=0:visual-constraint="10,10"