| /* |
| * 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 java.io.Writer; |
| |
| import org.apache.commons.io.output.CountingOutputStream; |
| |
| /** |
| * Class representing a PDF name object. |
| */ |
| public class PDFName extends PDFObject { |
| |
| private String name; |
| |
| /** |
| * Creates a new PDF name object. |
| * @param name the name value |
| */ |
| public PDFName(String name) { |
| super(); |
| this.name = escapeName(name); |
| } |
| |
| |
| private static String escapeName(String name) { |
| StringBuffer sb = new StringBuffer(Math.min(16, name.length() + 4)); |
| if (!name.startsWith("/")) { |
| sb.append('/'); |
| } |
| for (int i = 0, c = name.length(); i < c; i++) { |
| char ch = name.charAt(i); |
| if (ch >= 33 && ch <= 126) { |
| sb.append(ch); |
| } else { |
| sb.append('#'); |
| toHex(ch, sb); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| private static final char[] DIGITS |
| = {'0', '1', '2', '3', '4', '5', '6', '7', |
| '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; |
| |
| private static void toHex(char ch, StringBuffer sb) { |
| if (ch >= 256) { |
| throw new IllegalArgumentException( |
| "Only 8-bit characters allowed by this implementation"); |
| } |
| sb.append(DIGITS[ch >>> 4 & 0x0F]); |
| sb.append(DIGITS[ch & 0x0F]); |
| } |
| |
| /** {@inheritDoc} */ |
| public String toString() { |
| return this.name; |
| } |
| |
| /** {@inheritDoc} */ |
| protected int output(OutputStream stream) throws IOException { |
| CountingOutputStream cout = new CountingOutputStream(stream); |
| Writer writer = PDFDocument.getWriterFor(cout); |
| if (hasObjectNumber()) { |
| writer.write(getObjectID()); |
| } |
| |
| writer.write(toString()); |
| |
| if (hasObjectNumber()) { |
| writer.write("\nendobj\n"); |
| } |
| |
| writer.flush(); |
| return cout.getCount(); |
| } |
| |
| /** {@inheritDoc} */ |
| public void outputInline(OutputStream out, Writer writer) throws IOException { |
| if (hasObjectNumber()) { |
| writer.write(referencePDF()); |
| } else { |
| writer.write(toString()); |
| } |
| } |
| |
| } |