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- /*
- * 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.fop.fonts.FontType;
-
- /**
- * Class representing a /Font object.
- * <p>
- * A more complete object expressing the base font name and encoding of a
- * font along with an internal name for the font used within
- * streams of content.
- * <p>
- * Fonts are specified on page 198 and onwards of the PDF 1.3 spec.
- */
- public class PDFFont extends PDFDictionary {
-
- /** Internal F-number for each font (it is not written to the font dict) */
- private String fontname;
-
- /**
- * create the /Font object
- *
- * @param fontname the internal name for the font
- * @param subtype the font's subtype
- * @param basefont the base font name
- * @param encoding the character encoding schema used by the font
- */
- public PDFFont(String fontname, FontType subtype,
- String basefont,
- Object encoding) {
-
- /* generic creation of PDF object */
- super();
-
- this.fontname = fontname;
- put("Type", new PDFName("Font"));
- put("Subtype", getPDFNameForFontType(subtype));
- //put("Name", new PDFName(fontname));
- put("BaseFont", new PDFName(basefont));
- if (encoding instanceof PDFEncoding) {
- setEncoding((PDFEncoding)encoding);
- } else if (encoding instanceof String) {
- setEncoding((String)encoding);
- }
- }
-
- /**
- * Sets the Encoding value of the font.
- * @param encoding the encoding
- */
- public void setEncoding(String encoding) {
- if (encoding != null && !PDFEncoding.hasStandardEncoding(encoding)) {
- put("Encoding", new PDFName(encoding));
- }
- }
-
- /**
- * Sets the Encoding value of the font.
- * @param encoding the encoding
- */
- public void setEncoding(PDFEncoding encoding) {
- if (encoding != null) {
- put("Encoding", encoding);
- }
- }
-
- /**
- * Sets a ToUnicode CMap.
- * @param cmap the ToUnicode character map
- */
- public void setToUnicode(PDFCMap cmap) {
- put("ToUnicode", cmap);
- }
-
- /**
- * factory method with the basic parameters
- *
- * @param fontname the internal name for the font
- * @param subtype the font's subtype
- * @param basefont the base font name
- * @param encoding the character encoding schema used by the font
- * @return the generated PDFFont object
- */
- public static PDFFont createFont(String fontname,
- FontType subtype, String basefont,
- Object encoding) {
- if (subtype == FontType.TYPE0 || subtype == FontType.CIDTYPE0) {
- return new PDFFontType0(fontname, basefont,
- encoding);
- } else if ((subtype == FontType.TYPE1)
- || (subtype == FontType.TYPE1C)
- || (subtype == FontType.MMTYPE1)) {
- return new PDFFontType1(fontname, basefont,
- encoding);
- } else if (subtype == FontType.TYPE3) {
- //return new PDFFontType3(number, fontname, basefont, encoding);
- return null; //NYI
- } else if (subtype == FontType.TRUETYPE) {
- return new PDFFontTrueType(fontname, basefont,
- encoding);
- } else {
- return null; // should not happen
- }
- }
-
- /**
- * Get the internal name used for this font.
- * @return the internal name
- */
- public String getName() {
- return this.fontname;
- }
-
- /**
- * Returns the name of the BaseFont.
- * @return the BaseFont
- */
- public PDFName getBaseFont() {
- return (PDFName)get("BaseFont");
- }
-
- /**
- * Returns the PDF name for a certain font type.
- * @param fontType font type
- * @return String corresponding PDF name
- */
- protected PDFName getPDFNameForFontType(FontType fontType) {
- if (fontType == FontType.TYPE0) {
- return new PDFName(fontType.getName());
- } else if (fontType == FontType.TYPE1) {
- return new PDFName(fontType.getName());
- } else if (fontType == FontType.MMTYPE1) {
- return new PDFName(fontType.getName());
- } else if (fontType == FontType.TYPE3) {
- return new PDFName(fontType.getName());
- } else if (fontType == FontType.TRUETYPE) {
- return new PDFName(fontType.getName());
- } else {
- throw new IllegalArgumentException("Unsupported font type: " + fontType.getName());
- }
- }
-
- /**
- * Validates the PDF object prior to serialization.
- */
- protected void validate() {
- if (getDocumentSafely().getProfile().isFontEmbeddingRequired()) {
- if (this.getClass() == PDFFont.class) {
- throw new PDFConformanceException("For " + getDocumentSafely().getProfile()
- + ", all fonts, even the base 14"
- + " fonts, have to be embedded! Offending font: " + getBaseFont());
- }
- }
- }
-
- /** {@inheritDoc} */
- public int output(OutputStream stream) throws IOException {
- validate();
- return super.output(stream);
- }
-
- }
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