adds support for type 1 fonts by Jeremias Maerki <jeremias.maerki@outline.ch>

based on work by Alain Fagot


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@193740 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 152 insertions, 0 deletions

diff --git a/src/org/apache/fop/pdf/PDFEncoding.java b/src/org/apache/fop/pdf/PDFEncoding.java
new file mode 100644
index 000000000..f5ed80a47
--- /dev/null
+++ b/src/org/apache/fop/pdf/PDFEncoding.java
@@ -0,0 +1,152 @@
+/*-- $Id$ --
+
+ ============================================================================
+                   The Apache Software License, Version 1.1
+ ============================================================================
+
+    Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modifica-
+ tion, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of  source code must  retain the above copyright  notice,
+    this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+
+ 3. The end-user documentation included with the redistribution, if any, must
+    include  the following  acknowledgment:  "This product includes  software
+    developed  by the  Apache Software Foundation  (http://www.apache.org/)."
+    Alternately, this  acknowledgment may  appear in the software itself,  if
+    and wherever such third-party acknowledgments normally appear.
+
+ 4. The names "Fop" and  "Apache Software Foundation"  must not be used to
+    endorse  or promote  products derived  from this  software without  prior
+    written permission. For written permission, please contact
+    apache@apache.org.
+
+ 5. Products  derived from this software may not  be called "Apache", nor may
+    "Apache" appear  in their name,  without prior written permission  of the
+    Apache Software Foundation.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS  FOR A PARTICULAR  PURPOSE ARE  DISCLAIMED.  IN NO  EVENT SHALL  THE
+ APACHE SOFTWARE  FOUNDATION  OR ITS CONTRIBUTORS  BE LIABLE FOR  ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLU-
+ DING, BUT NOT LIMITED TO, PROCUREMENT  OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ OF USE, DATA, OR  PROFITS; OR BUSINESS  INTERRUPTION)  HOWEVER CAUSED AND ON
+ ANY  THEORY OF LIABILITY,  WHETHER  IN CONTRACT,  STRICT LIABILITY,  OR TORT
+ (INCLUDING  NEGLIGENCE OR  OTHERWISE) ARISING IN  ANY WAY OUT OF THE  USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ This software  consists of voluntary contributions made  by many individuals
+ on  behalf of the Apache Software  Foundation and was  originally created by
+ James Tauber <jtauber@jtauber.com>. For more  information on the Apache
+ Software Foundation, please see <http://www.apache.org/>.
+
+ */
+package org.apache.fop.pdf;
+
+// Java
+import java.util.Enumeration;
+import java.util.Hashtable;
+import java.util.Vector;
+
+/**
+ * class representing an /Encoding object.
+ *
+ * A small object expressing the base encoding name and
+ * the differences from the base encoding.
+ *
+ * The three base encodings are given by their name.
+ *
+ * Encodings are specified on page 213 and onwards of the PDF 1.3 spec.
+ */
+public class PDFEncoding extends PDFObject {
+
+	/** the name for the standard encoding scheme */
+	public static final String MacRomanEncoding = "MacRomanEncoding";
+	/** the name for the standard encoding scheme */
+	public static final String MacExpertEncoding = "MacExpertEncoding";
+	/** the name for the standard encoding scheme */
+	public static final String WinAnsiEncoding = "WinAnsiEncoding";
+
+    /**
+	 * the name for the base encoding.
+	 * One of the three base encoding scheme names or
+	 * the default font's base encoding if null.
+	 */
+    protected String basename;
+
+	/** the differences from the base encoding */
+	protected Hashtable differences;
+
+    /**
+     * create the /Encoding object
+     *
+     * @param number the object's number
+     * @param basename the name of the character encoding schema
+     */
+    public PDFEncoding(int number, String basename) {
+
+		/* generic creation of PDF object */
+		super(number);
+
+		/* set fields using paramaters */
+		this.basename = basename;
+		this.differences = new Hashtable();
+	}
+
+	/**
+	 * add differences to the encoding
+	 *
+	 * @param code the first index of the sequence to be changed
+	 * @param sequence the sequence of glyph names (as String)
+	 */
+	public void addDifferences(int code, Vector sequence) {
+		differences.put(new Integer(code), sequence);
+	}
+
+	/**
+	 * produce the PDF representation for the object
+	 *
+	 * @return the PDF
+	 */
+	public String toPDF() {
+		StringBuffer p = new StringBuffer();
+		p.append(this.number + " " + this.generation
+				+ " obj\n<< /Type /Encoding");
+		if ((basename != null) && (!basename.equals(""))) {
+			p.append("\n/BaseEncoding /" + this.basename);
+		}
+		if (!differences.isEmpty()) {
+			p.append("\n/Differences [ ");
+			Object code;
+			Enumeration codes = differences.keys();
+			while (codes.hasMoreElements()) {
+				code = codes.nextElement();
+				p.append(" "); p.append(code);
+				Vector sequence = (Vector)differences.get(code);
+				for (int i = 0; i < sequence.size(); i++) {
+					p.append(" /"); p.append((String)sequence.elementAt(i));
+				}
+			}
+			p.append(" ]");
+		}
+		p.append(" >>\nendobj\n");
+		return p.toString();
+	}
+	/* example (p. 214)
+		25 0 obj
+		<<
+		/Type /Encoding
+		/Differences [39 /quotesingle 96 /grave 128
+		/Adieresis /Aring /Ccedilla /Eacute /Ntilde
+		/Odieresis /Udieresis /aacute /agrave]
+		>>
+		endobj
+	*/
+}