| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.pdf; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.xmlgraphics.util.io.ASCII85OutputStream; |
| |
| /** |
| * PDF Filter for ASCII85. |
| * This applies a filter to a pdf stream that converts |
| * the data to ASCII. |
| */ |
| public class ASCII85Filter extends PDFFilter { |
| |
| /** |
| * Get the PDF name of this filter. |
| * |
| * @return the name of the filter to be inserted into the PDF |
| */ |
| public String getName() { |
| return "/ASCII85Decode"; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isASCIIFilter() { |
| return true; |
| } |
| |
| /** |
| * Get the decode parameters. |
| * |
| * @return always null |
| */ |
| public PDFObject getDecodeParms() { |
| return null; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public OutputStream applyFilter(OutputStream out) throws IOException { |
| if (isApplied()) { |
| return out; |
| } else { |
| return new ASCII85OutputStream(out); |
| } |
| } |
| |
| } |