1 /* UnixFileSystemView.java -- 2 Copyright (C) 2005 Free Software Foundation, Inc. 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 package javax.swing.filechooser; 39 40 import gnu.classpath.NotImplementedException; 41 42 import java.io.File; 43 import java.io.IOException; 44 45 import javax.swing.Icon; 46 47 48 /** 49 * A concrete implementation of {@link FileSystemView} that is appropriate for 50 * Unix-like systems. 51 * 52 * @see FileSystemView#getFileSystemView() 53 */ 54 class UnixFileSystemView extends FileSystemView 55 { 56 /** The default name for new folders. */ 57 private static final String NEW_FOLDER_NAME = "NewFolder"; 58 59 /** 60 * Creates a new folder with a unique name in the specified directory and 61 * returns a {@link File} object representing the new directory. The name 62 * of the new folder is <code>NewFolder</code> or, if a directory or file 63 * with that name already exists, <code>NewFolder.n</code> where 64 * <code>n</code> is the lowest integer greater than zero that results in 65 * a unique directory name. 66 * 67 * @param containingDir the directory to contain the new folder 68 * (<code>null</code> not permitted). 69 * 70 * @return A {@link File} object representing the new directory. 71 * 72 * @throws IOException if an exception occurs while creating the new 73 * directory. 74 */ createNewFolder(File containingDir)75 public File createNewFolder(File containingDir) throws IOException 76 { 77 int count = 0; 78 File f = null; 79 String filename = containingDir.getAbsolutePath() + File.separator 80 + NEW_FOLDER_NAME; 81 while (f == null) 82 { 83 String full = filename; 84 if (count > 0) 85 full += "." + (count++); 86 f = new File(full); 87 if (f.isDirectory() || f.isFile()) 88 { 89 count++; 90 f = null; 91 } 92 } 93 f.mkdir(); 94 return f; 95 } 96 97 /** 98 * Returns an array containing the file system root. 99 * 100 * @return An array containing the file system root. 101 */ getRoots()102 public File[] getRoots() 103 { 104 return File.listRoots(); 105 } 106 107 /** 108 * Returns the name of a file as it would be displayed by the underlying 109 * system. 110 * 111 * @param f the file. 112 * 113 * @return the name of a file as it would be displayed by the underlying 114 * system 115 */ getSystemDisplayName(File f)116 public String getSystemDisplayName(File f) 117 { 118 String name = null; 119 if (f != null) 120 { 121 if (isRoot(f)) 122 name = f.getAbsolutePath(); 123 else 124 { 125 try 126 { 127 String path = f.getCanonicalPath(); 128 name = path.substring(path.lastIndexOf(File.separator) + 1); 129 } 130 catch (IOException e) 131 { 132 name = f.getName(); 133 } 134 } 135 } 136 return name; 137 } 138 139 /** 140 * Returns the icon that would be displayed for the given file by the 141 * underlying system. This method is NOT YET IMPLEMENTED. 142 * 143 * @param f the file. 144 * 145 * @return <code>null</code>. 146 */ getSystemIcon(File f)147 public Icon getSystemIcon(File f) 148 throws NotImplementedException 149 { 150 // FIXME: Implement; 151 return null; 152 } 153 154 /** 155 * Returns the description of a file that would be displayed by the 156 * underlying system. This method is NOT YET IMPLEMENTED. 157 * 158 * @param f the file. 159 * 160 * @return <code>null</code>. 161 */ getSystemTypeDescription(File f)162 public String getSystemTypeDescription(File f) 163 throws NotImplementedException 164 { 165 // FIXME: Implement. 166 return null; 167 } 168 169 /** 170 * DOCUMENT ME! 171 * 172 * @param f DOCUMENT ME! 173 * 174 * @return DOCUMENT ME! 175 */ isRoot(File f)176 public boolean isRoot(File f) 177 { 178 return isFileSystemRoot(f); 179 } 180 } 181