private Icon makeIcon(final String gifFile) throws IOException {
    /* Copy resource into a byte array.  This is
     * necessary because several browsers consider
     * Class.getResource a security risk because it
     * can be used to load additional classes.
     * Class.getResourceAsStream just returns raw
     * bytes, which we can convert to an image.
     */
    InputStream resource = MyImageView.class.getResourceAsStream(gifFile);

    if (resource == null) {
      System.err.println(MyImageView.class.getName() + "/" + gifFile + " not found!!.");
      return null;
    }
    BufferedInputStream in = new BufferedInputStream(resource);
    ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
    byte[] buffer = new byte[1024];
    int n;
    while ((n = in.read(buffer)) > 0) {
      out.write(buffer, 0, n);
    }
    in.close();
    out.flush();

    buffer = out.toByteArray();
    if (buffer.length == 0) {
      System.err.println("warning: " + gifFile + " is zero-length");
      return null;
    }
    return new ImageIcon(buffer);
  }
Example #2
0
 // Take a tree of files starting in a directory in a zip file
 // and copy them to a disk directory, recreating the tree.
 private int unpackZipFile(
     File inZipFile, String directory, String parent, boolean suppressFirstPathElement) {
   int count = 0;
   if (!inZipFile.exists()) return count;
   parent = parent.trim();
   if (!parent.endsWith(File.separator)) parent += File.separator;
   if (!directory.endsWith(File.separator)) directory += File.separator;
   File outFile = null;
   try {
     ZipFile zipFile = new ZipFile(inZipFile);
     Enumeration zipEntries = zipFile.entries();
     while (zipEntries.hasMoreElements()) {
       ZipEntry entry = (ZipEntry) zipEntries.nextElement();
       String name = entry.getName().replace('/', File.separatorChar);
       if (name.startsWith(directory)) {
         if (suppressFirstPathElement) name = name.substring(directory.length());
         outFile = new File(parent + name);
         // Create the directory, just in case
         if (name.indexOf(File.separatorChar) >= 0) {
           String p = name.substring(0, name.lastIndexOf(File.separatorChar) + 1);
           File dirFile = new File(parent + p);
           dirFile.mkdirs();
         }
         if (!entry.isDirectory()) {
           System.out.println("Installing " + outFile);
           // Copy the file
           BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(outFile));
           BufferedInputStream in = new BufferedInputStream(zipFile.getInputStream(entry));
           int size = 1024;
           int n = 0;
           byte[] b = new byte[size];
           while ((n = in.read(b, 0, size)) != -1) out.write(b, 0, n);
           in.close();
           out.flush();
           out.close();
           // Count the file
           count++;
         }
       }
     }
     zipFile.close();
   } catch (Exception e) {
     System.err.println("...an error occured while installing " + outFile);
     e.printStackTrace();
     System.err.println("Error copying " + outFile.getName() + "\n" + e.getMessage());
     return -count;
   }
   System.out.println(count + " files were installed.");
   return count;
 }