| 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.georeferencing.ui.launcher;

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.util.ArrayList;

import javax.swing.JButton;

import javax.swing.JFileChooser;

import javax.swing.JPanel;

import javax.swing.JTextField;

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

import org.gvsig.gui.beans.datainput.DataInputContainer;

import org.gvsig.raster.dataset.RasterDataset;

import org.gvsig.raster.util.ExtendedFileFilter;

import org.gvsig.raster.util.RasterToolsUtil;

import org.gvsig.raster.util.RasterUtilities;

import com.iver.cit.gvsig.addlayer.fileopen.FileOpenWizard;

import com.iver.cit.gvsig.exceptions.layers.LoadLayerException;

/**

 * Panel de selecci?n de fichero a georreferenciar.

 * 

 * 10/01/2008

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

 */

public class FileSelectionPanel extends JPanel implements ActionListener {

        private static final long     serialVersionUID    = 1L;

        private JTextField            fileName            = null;

        private JButton               bSelection          = null;

        private FLyrRasterSE          layer               = null;

        private DataInputContainer    yCellSize           = null;

        private DataInputContainer    xCellSize           = null;

        /**

         * Constructor. Asigna la lista de nombres de vistas para el selector. 

         * @param viewList

         */

        public FileSelectionPanel(DataInputContainer xCellSize, DataInputContainer yCellSize) {

                this.xCellSize = xCellSize;

                this.yCellSize = yCellSize;

                init();

        }

        /**

         * Acciones de inicializaci?n del panel

         */

        public void init() {        

                BorderLayout fl = new BorderLayout();

                fl.setHgap(3);

                fl.setVgap(0);

                setLayout(fl);

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

                add(getFileName(), BorderLayout.CENTER);

                add(getSelectFileButton(), BorderLayout.EAST);

        }

        /**

         * Obtiene el campo con la ruta al ficheo a georreferenciar

         * @return JFormattedTextField

         */

        private JTextField getFileName() {

                if (fileName == null) {

                        fileName = new JTextField();

                        fileName.setEditable(false);

                }

                return fileName;

        }

        /**

         * Obtiene el bot?n de selecci?n de fichero

         * @return JButton

                */

        private JButton getSelectFileButton() {

                if(bSelection == null) {

                        bSelection = new JButton(RasterToolsUtil.getText(this, "select"));

                        bSelection.addActionListener(this);

                }

                return bSelection;

        }

        /**

         * Gestiona el evento del bot?n de apertura de capa

         */

        public void actionPerformed(ActionEvent e) {

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

                        loadRasterLayer();

                        if(getLayer() != null && xCellSize != null && yCellSize != null) {

                                xCellSize.setValue(getLayer().getDataSource().getCellSize() + "");

                                yCellSize.setValue(getLayer().getDataSource().getCellSize() + "");

                        }

                }

        }

        /**

         * Muestra el dialogo de selecci?n de fichero para la carga de la capa

         * raster en los formatos definidos para georreferenciar.

         * @return Capa raster cargada o null si no se consigue ninguna

         */

        private FLyrRasterSE loadRasterLayer() {

                String path = null;

                JFileChooser chooser = new JFileChooser(FileOpenWizard.getLastPath());

                chooser.setAcceptAllFileFilterUsed(false);

                ArrayList extensionsSupported = RasterDataset.getExtensionsSupported();

                ExtendedFileFilter allFiles = new ExtendedFileFilter();

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

                        ExtendedFileFilter fileFilter = new ExtendedFileFilter();

                        fileFilter.addExtension((String)extensionsSupported.get(i));

                        allFiles.addExtension((String)extensionsSupported.get(i));

                        chooser.addChoosableFileFilter(fileFilter);

                }

                allFiles.setDescription(RasterToolsUtil.getText(this, "todos_soportados"));

                chooser.addChoosableFileFilter(allFiles);

                int returnVal = chooser.showOpenDialog(null);

                if (returnVal == JFileChooser.APPROVE_OPTION) {

                        path = chooser.getSelectedFile().getAbsolutePath();

                        try {

                                if (layer != null)

                                        layer.getDataSource().close();

                                layer = FLyrRasterSE.createLayer(RasterUtilities.getLastPart(path, File.separator), path, null);

                                if (layer != null)

                                        getFileName().setText(path);

                                return layer;

                        } catch (LoadLayerException e) {

                        }

                }

                RasterToolsUtil.messageBoxError(RasterToolsUtil.getText(this, "error_load_layer"), null);

                return null;

        }

        //-------Consulta de propiedades seleccionadas---------

        /**

         * Obtiene la capa que ha sido abierta por el usuario 

         * @return Obtiene la capa que ha sido abierta por el usuario o null si no 

         * hay abierta ninguna.

         */

        public FLyrRasterSE getLayer() {

                return layer;

        }

}