Ejemplo n.º 1
0
  /**
   * Write the device independent image array stored in the specified loader to the specified output
   * stream using the specified file format.
   */
  public static void save(OutputStream os, int format, ImageLoader loader) {
    if (format < 0 || format >= FORMATS.length) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
    if (FORMATS[format] == null) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
    if (loader.data == null || loader.data.length < 1) SWT.error(SWT.ERROR_INVALID_ARGUMENT);

    LEDataOutputStream stream = new LEDataOutputStream(os);
    FileFormat fileFormat = null;
    try {
      Class clazz = Class.forName(FORMAT_PACKAGE + '.' + FORMATS[format] + FORMAT_SUFFIX);
      fileFormat = (FileFormat) clazz.newInstance();
    } catch (Exception e) {
      SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
    }
    if (format == SWT.IMAGE_BMP_RLE) {
      switch (loader.data[0].depth) {
        case 8:
          fileFormat.compression = 1;
          break;
        case 4:
          fileFormat.compression = 2;
          break;
      }
    }
    fileFormat.unloadIntoStream(loader, stream);
  }
Ejemplo n.º 2
0
 /**
  * Read the specified input stream using the specified loader, and return the device independent
  * image array represented by the stream.
  */
 public static ImageData[] load(InputStream is, ImageLoader loader) {
   FileFormat fileFormat = null;
   LEDataInputStream stream = new LEDataInputStream(is);
   for (int i = 1; i < FORMATS.length; i++) {
     if (FORMATS[i] != null) {
       try {
         fileFormat = getFileFormat(stream, FORMATS[i]);
         if (fileFormat != null) break;
       } catch (ClassNotFoundException e) {
         FORMATS[i] = null;
       } catch (Exception e) {
       }
     }
   }
   if (fileFormat == null) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
   fileFormat.loader = loader;
   return fileFormat.loadFromStream(stream);
 }
Ejemplo n.º 3
0
 static FileFormat getFileFormat(LEDataInputStream stream, String format) throws Exception {
   Class clazz = Class.forName(FORMAT_PACKAGE + '.' + format + FORMAT_SUFFIX);
   FileFormat fileFormat = (FileFormat) clazz.newInstance();
   if (fileFormat.isFileFormat(stream)) return fileFormat;
   return null;
 }