| gvSIG desktop 1

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

 *

 * Copyright (C) 2005 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.raster.util;

import java.io.File;

import java.util.ArrayList;

import javax.swing.filechooser.FileFilter;

import com.iver.andami.PluginServices;

/**

 * ExtendedFileFilter es una clase para usarla junto a los JFileChooser.

 * Ofrece una funcionalidad simple para poder agregar extensiones de manera

 * comoda y rapida. Las descripciones ya las pone con un formato.

 *

 * @version 21/11/2007

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class ExtendedFileFilter extends FileFilter {

        String description = null;

        ArrayList extensions = new ArrayList();

        /**

         * Constructor de un ExtendedFileFilter

         */

        public ExtendedFileFilter() {

        }

        /**

         * Construye un ExtendedFileFilter con una extensi?n ya agregada

         * @param extension

         */

        public ExtendedFileFilter(String extension) {

                addExtension(extension);

        }

        /**

         * A?ade una extensi?n a la lista de extensiones soportadas

         * @param extension

         */

        public void addExtension(String extension) {

                if (extension == null)

                        return;

                extensions.add(extension);

        }

        /*

         * (non-Javadoc)

         * @see javax.swing.filechooser.FileFilter#accept(java.io.File)

         */

        public boolean accept(File f) {

                if (f.isDirectory())

                        return true;

                String s = f.getName();

                int i = s.lastIndexOf('.');

                if (i > 0 && i < s.length() - 1) {

                        String extension = s.substring(i + 1).toLowerCase();

                        for (int j = 0; j < extensions.size(); j++) {

                                if (extensions.get(j).toString().toLowerCase().equals(extension))

                                        return true;

                        }

                }

                return false;

        }

        /**

         * Normaliza el nombre de un fichero, a?adiendo la extension si fuera

         * necesario

         * @param file

         * @return

         */

        public String getNormalizedFilename(File file) {

                String s = file.getName();

                int i = s.lastIndexOf('.');

                if (i > 0 && i < s.length() - 1) {

                        String extension = s.substring(i + 1).toLowerCase();

                        for (int j = 0; j < extensions.size(); j++) {

                                if (extensions.get(j).toString().toLowerCase().equals(extension))

                                        return file.toString();

                        }

                }

                return file.toString() + "." + extensions.get(0).toString().toLowerCase();

        }

        /*

         * (non-Javadoc)

         * @see javax.swing.filechooser.FileFilter#getDescription()

         */

        public String getDescription() {

                String format1 = "";

                String format2 = "";

                for (int j = 0; j < extensions.size(); j++) {

                        if (format1.length() != 0) {

                                format1 = format1 + ", ";

                                format2 = format2 + "; ";

                        }

                        format1 = format1 + extensions.get(j).toString().toUpperCase();

                        format2 = format2 + "*." + extensions.get(j).toString().toLowerCase();

                }

                if (description == null)

                        return PluginServices.getText(this, "files") + " " + format1 + " (" + format2 + ")";

                return description + " (" + format2 + ")";

        }

        /**

         * Especifica la descripcion del item

         * @param description the description to set

         */

        public void setDescription(String description) {

                this.description = description;

        }

        /**

         * Borra una extension de la lista de extensiones

         * @param extension

         */

        public void removeExtension(String extension){

                extensions.remove(extension);

 }

        /**

         * Borra todas las extensiones existentes

         */

        public void clearExtensions(){

                extensions.clear();

        }

        /**

         * Devuelve una lista con las extensiones disponibles

         * @return

         */

        public ArrayList getExtensions(){

                return extensions;

        }

}