コード例 #1
0
    public void valueChanged(ListSelectionEvent evt) {
      if (!evt.getValueIsAdjusting()) {
        JFileChooser chooser = getFileChooser();
        FileSystemView fsv = chooser.getFileSystemView();
        JList list = (JList) evt.getSource();

        int fsm = chooser.getFileSelectionMode();
        boolean useSetDirectory = usesSingleFilePane && (fsm == JFileChooser.FILES_ONLY);

        if (chooser.isMultiSelectionEnabled()) {
          File[] files = null;
          Object[] objects = list.getSelectedValues();
          if (objects != null) {
            if (objects.length == 1
                && ((File) objects[0]).isDirectory()
                && chooser.isTraversable(((File) objects[0]))
                && (useSetDirectory || !fsv.isFileSystem(((File) objects[0])))) {
              setDirectorySelected(true);
              setDirectory(((File) objects[0]));
            } else {
              ArrayList<File> fList = new ArrayList<File>(objects.length);
              for (Object object : objects) {
                File f = (File) object;
                boolean isDir = f.isDirectory();
                if ((chooser.isFileSelectionEnabled() && !isDir)
                    || (chooser.isDirectorySelectionEnabled() && fsv.isFileSystem(f) && isDir)) {
                  fList.add(f);
                }
              }
              if (fList.size() > 0) {
                files = fList.toArray(new File[fList.size()]);
              }
              setDirectorySelected(false);
            }
          }
          chooser.setSelectedFiles(files);
        } else {
          File file = (File) list.getSelectedValue();
          if (file != null
              && file.isDirectory()
              && chooser.isTraversable(file)
              && (useSetDirectory || !fsv.isFileSystem(file))) {

            setDirectorySelected(true);
            setDirectory(file);
            if (usesSingleFilePane) {
              chooser.setSelectedFile(null);
            }
          } else {
            setDirectorySelected(false);
            if (file != null) {
              chooser.setSelectedFile(file);
            }
          }
        }
      }
    }
コード例 #2
0
 /** The only richer format supported is the file list flavor */
 protected Object getRicherData(DataFlavor flavor) {
   if (DataFlavor.javaFileListFlavor.equals(flavor)) {
     ArrayList<Object> files = new ArrayList<Object>();
     for (Object file : this.fileData) {
       files.add(file);
     }
     return files;
   }
   return null;
 }