svn-gvsig-desktop / trunk / extensions / extRasterTools-SE / src / org / gvsig / raster / util / ExtendedFileFilter.java @ 18014
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| 1 | 16554 | bsanchez | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | */
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| 19 | package org.gvsig.raster.util; |
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| 20 | |||
| 21 | import java.io.File; |
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| 22 | import java.util.ArrayList; |
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| 23 | |||
| 24 | import javax.swing.filechooser.FileFilter; |
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| 25 | |||
| 26 | import com.iver.andami.PluginServices; |
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| 27 | /**
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| 28 | * ExtendedFileFilter es una clase para usarla junto a los JFileChooser.
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| 29 | * Ofrece una funcionalidad simple para poder agregar extensiones de manera
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| 30 | 17772 | bsanchez | * comoda y rapida. Las descripciones ya las pone con un formato, asi que esto
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| 31 | * es opcional poner una descripci?n especifica.
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| 32 | *
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| 33 | * Un ejemplo t?pico de como se usaria:
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| 34 | * <pre>
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| 35 | * // Usamos el JFileChooser de libUIComponents
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| 36 | * JFileChooser chooser = new JFileChooser(this.getClass().toString(), (File) null);
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| 37 | * // Desactivamos el modo de ver todos los ficheros
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| 38 | * chooser.setAcceptAllFileFilterUsed(false);
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| 39 | * // Activamos la multiseleccion
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| 40 | * chooser.setMultiSelectionEnabled(true);
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| 41 | * // Nos guardamos cada tipo de fichero en uno que contenga todos
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| 42 | * ExtendedFileFilter allFilters = new ExtendedFileFilter();
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| 43 | * for (int i = 0; i < formats.length; i++) {
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| 44 | * ExtendedFileFilter fileFilter = new ExtendedFileFilter();
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| 45 | * fileFilter.addExtension(formats[i]);
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| 46 | * // Agregamos el filefilter al JFileChooser
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| 47 | * chooser.addChoosableFileFilter(fileFilter);
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| 48 | * // Agregamos el mismo filtro a un ExtendedFileFilter global
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| 49 | * allFilters.addExtension(formats[i]);
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| 50 | * }
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| 51 | * // Poner una descripcion (OPCIONAL) para todos los ficheros.
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| 52 | * allFilters.setDescription(PluginServices.getText(this, "todos_soportados"));
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| 53 | * // Lo a?adimos
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| 54 | * chooser.addChoosableFileFilter(allFilters);
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| 55 | * // Y lo dejamos seleccionado por defecto
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| 56 | * chooser.setFileFilter(allFilters);
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| 57 | * </pre>
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| 58 | *
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| 59 | 16554 | bsanchez | * @version 21/11/2007
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| 60 | * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)
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| 61 | */
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| 62 | public class ExtendedFileFilter extends FileFilter { |
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| 63 | String description = null; |
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| 64 | |||
| 65 | ArrayList extensions = new ArrayList(); |
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| 66 | |||
| 67 | /**
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| 68 | * Constructor de un ExtendedFileFilter
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| 69 | */
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| 70 | public ExtendedFileFilter() {
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| 71 | } |
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| 72 | |||
| 73 | /**
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| 74 | * Construye un ExtendedFileFilter con una extensi?n ya agregada
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| 75 | * @param extension
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| 76 | */
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| 77 | public ExtendedFileFilter(String extension) { |
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| 78 | addExtension(extension); |
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| 79 | } |
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| 80 | |||
| 81 | /**
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| 82 | * A?ade una extensi?n a la lista de extensiones soportadas
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| 83 | * @param extension
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| 84 | */
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| 85 | public void addExtension(String extension) { |
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| 86 | if (extension == null) |
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| 87 | return;
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| 88 | |||
| 89 | extensions.add(extension); |
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| 90 | } |
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| 91 | |||
| 92 | /*
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| 93 | * (non-Javadoc)
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| 94 | * @see javax.swing.filechooser.FileFilter#accept(java.io.File)
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| 95 | */
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| 96 | public boolean accept(File f) { |
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| 97 | if (f.isDirectory())
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| 98 | return true; |
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| 99 | |||
| 100 | String s = f.getName();
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| 101 | int i = s.lastIndexOf('.'); |
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| 102 | |||
| 103 | if (i > 0 && i < s.length() - 1) { |
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| 104 | String extension = s.substring(i + 1).toLowerCase(); |
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| 105 | for (int j = 0; j < extensions.size(); j++) { |
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| 106 | if (extensions.get(j).toString().toLowerCase().equals(extension))
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| 107 | return true; |
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| 108 | } |
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| 109 | } |
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| 110 | |||
| 111 | return false; |
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| 112 | } |
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| 113 | |||
| 114 | /**
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| 115 | * Normaliza el nombre de un fichero, a?adiendo la extension si fuera
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| 116 | * necesario
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| 117 | * @param file
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| 118 | * @return
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| 119 | */
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| 120 | public String getNormalizedFilename(File file) { |
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| 121 | String s = file.getName();
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| 122 | int i = s.lastIndexOf('.'); |
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| 123 | |||
| 124 | if (i > 0 && i < s.length() - 1) { |
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| 125 | String extension = s.substring(i + 1).toLowerCase(); |
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| 126 | for (int j = 0; j < extensions.size(); j++) { |
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| 127 | if (extensions.get(j).toString().toLowerCase().equals(extension))
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| 128 | return file.toString();
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| 129 | } |
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| 130 | } |
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| 131 | |||
| 132 | return file.toString() + "." + extensions.get(0).toString().toLowerCase(); |
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| 133 | } |
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| 134 | |||
| 135 | /*
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| 136 | * (non-Javadoc)
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| 137 | * @see javax.swing.filechooser.FileFilter#getDescription()
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| 138 | */
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| 139 | public String getDescription() { |
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| 140 | String format1 = ""; |
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| 141 | String format2 = ""; |
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| 142 | for (int j = 0; j < extensions.size(); j++) { |
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| 143 | if (format1.length() != 0) { |
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| 144 | format1 = format1 + ", ";
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| 145 | format2 = format2 + "; ";
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| 146 | } |
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| 147 | 17772 | bsanchez | // Files JPG, GIF, ... (*.jpg; *.gif ...)
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| 148 | if (j >= 4) { |
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| 149 | format1 = "...";
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| 150 | format2 = "...";
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| 151 | break;
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| 152 | } |
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| 153 | 16554 | bsanchez | format1 = format1 + extensions.get(j).toString().toUpperCase(); |
| 154 | format2 = format2 + "*." + extensions.get(j).toString().toLowerCase();
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| 155 | } |
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| 156 | if (description == null) |
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| 157 | return PluginServices.getText(this, "files") + " " + format1 + " (" + format2 + ")"; |
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| 158 | |||
| 159 | return description + " (" + format2 + ")"; |
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| 160 | } |
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| 161 | |||
| 162 | /**
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| 163 | * Especifica la descripcion del item
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| 164 | * @param description the description to set
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| 165 | */
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| 166 | public void setDescription(String description) { |
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| 167 | this.description = description;
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| 168 | } |
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| 169 | |||
| 170 | /**
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| 171 | * Borra una extension de la lista de extensiones
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| 172 | * @param extension
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| 173 | */
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| 174 | public void removeExtension(String extension){ |
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| 175 | extensions.remove(extension); |
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| 176 | } |
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| 177 | |||
| 178 | /**
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| 179 | * Borra todas las extensiones existentes
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| 180 | */
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| 181 | public void clearExtensions(){ |
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| 182 | extensions.clear(); |
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| 183 | } |
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| 184 | |||
| 185 | /**
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| 186 | * Devuelve una lista con las extensiones disponibles
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| 187 | * @return
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| 188 | */
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| 189 | public ArrayList getExtensions(){ |
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| 190 | return extensions;
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| 191 | } |
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| 192 | } |