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docx4j is a library which helps you to work with the Office Open XML file format as used in docx documents, pptx presentations, and xlsx spreadsheets.

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/* NOTICE: This file has been changed by Plutext Pty Ltd for use in docx4j.
 * The package name has been changed; there may also be other changes.
 * 
 * This notice is included to meet the condition in clause 4(b) of the License. 
 */

 /*
 * 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: FontReader.java 679326 2008-07-24 09:35:34Z vhennebert $ */

package org.docx4j.fonts.fop.fonts;

//Java
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.docx4j.fonts.fop.apps.FOPException;
import org.docx4j.fonts.fop.fonts.apps.TTFReader;

/**
 * Class for reading a metric.xml file and creating a font object.
 * Typical usage:
 * 
 * FontReader reader = new FontReader();
 * reader.setFontEmbedPath();
 * reader.useKerning(true);
 * Font f = reader.getFont();
 * 
*/ public class FontReader extends DefaultHandler { private Locator locator = null; private boolean isCID = false; private CustomFont returnFont = null; private MultiByteFont multiFont = null; private SingleByteFont singleFont = null; private StringBuffer text = new StringBuffer(); private List cidWidths = null; private int cidWidthIndex = 0; private Map currentKerning = null; private List bfranges = null; private void createFont(InputSource source) throws FOPException { XMLReader parser = null; try { final SAXParserFactory factory = javax.xml.parsers.SAXParserFactory.newInstance(); factory.setNamespaceAware(true); parser = factory.newSAXParser().getXMLReader(); } catch (Exception e) { throw new FOPException(e); } if (parser == null) { throw new FOPException("Unable to create SAX parser"); } try { parser.setProperty("http://apache.org/xml/features/disallow-doctype-decl", true); } catch (Exception e) {} try { parser.setProperty("http://xml.org/sax/features/external-general-entities", false); parser.setProperty("http://xml.org/sax/features/external-parameter-entities", false); parser.setFeature("http://xml.org/sax/features/namespace-prefixes", false); } catch (SAXException e) { throw new FOPException("You need a SAX parser which supports SAX version 2", e); } parser.setContentHandler(this); try { parser.parse(source); } catch (SAXException e) { throw new FOPException(e); } catch (IOException e) { throw new FOPException(e); } } /** * Sets the path to embed a font. A null value disables font embedding. * @param path URI for the embeddable file */ public void setFontEmbedPath(String path) { returnFont.setEmbedFileName(path); } /** * Enable/disable use of kerning for the font * @param enabled true to enable kerning, false to disable */ public void setKerningEnabled(boolean enabled) { returnFont.setKerningEnabled(enabled); } /** * Sets the font resolver. Needed for URI resolution. * @param resolver the font resolver */ public void setResolver(FontResolver resolver) { returnFont.setResolver(resolver); } /** * Get the generated font object * @return the font */ public Typeface getFont() { return returnFont; } /** * Construct a FontReader object from a path to a metric.xml file * and read metric data * @param source Source of the font metric file * @throws FOPException if loading the font fails */ public FontReader(InputSource source) throws FOPException { createFont(source); } /** * {@inheritDoc} */ public void startDocument() { } /** * {@inheritDoc} */ public void setDocumentLocator(Locator locator) { this.locator = locator; } /** * {@inheritDoc} */ public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { if (localName.equals("font-metrics")) { if ("TYPE0".equals(attributes.getValue("type"))) { multiFont = new MultiByteFont(); returnFont = multiFont; isCID = true; TTFReader.checkMetricsVersion(attributes); } else if ("TRUETYPE".equals(attributes.getValue("type"))) { singleFont = new SingleByteFont(); singleFont.setFontType(FontType.TRUETYPE); returnFont = singleFont; isCID = false; TTFReader.checkMetricsVersion(attributes); } else { singleFont = new SingleByteFont(); singleFont.setFontType(FontType.TYPE1); returnFont = singleFont; isCID = false; } } else if ("embed".equals(localName)) { returnFont.setEmbedFileName(attributes.getValue("file")); returnFont.setEmbedResourceName(attributes.getValue("class")); } else if ("cid-widths".equals(localName)) { cidWidthIndex = getInt(attributes.getValue("start-index")); cidWidths = new java.util.ArrayList(); } else if ("kerning".equals(localName)) { currentKerning = new java.util.HashMap(); returnFont.putKerningEntry(new Integer(attributes.getValue("kpx1")), currentKerning); } else if ("bfranges".equals(localName)) { bfranges = new java.util.ArrayList(); } else if ("bf".equals(localName)) { BFEntry entry = new BFEntry(getInt(attributes.getValue("us")), getInt(attributes.getValue("ue")), getInt(attributes.getValue("gi"))); bfranges.add(entry); } else if ("wx".equals(localName)) { cidWidths.add(new Integer(attributes.getValue("w"))); } else if ("widths".equals(localName)) { //singleFont.width = new int[256]; } else if ("char".equals(localName)) { try { singleFont.setWidth(Integer.parseInt(attributes.getValue("idx")), Integer.parseInt(attributes.getValue("wdt"))); } catch (NumberFormatException ne) { throw new SAXException("Malformed width in metric file: " + ne.getMessage(), ne); } } else if ("pair".equals(localName)) { currentKerning.put(new Integer(attributes.getValue("kpx2")), new Integer(attributes.getValue("kern"))); } } private int getInt(String str) throws SAXException { int ret = 0; try { ret = Integer.parseInt(str); } catch (Exception e) { throw new SAXException("Error while parsing integer value: " + str, e); } return ret; } /** * {@inheritDoc} */ public void endElement(String uri, String localName, String qName) throws SAXException { String content = text.toString().trim(); if ("font-name".equals(localName)) { returnFont.setFontName(content); } else if ("full-name".equals(localName)) { returnFont.setFullName(content); } else if ("family-name".equals(localName)) { Set s = new java.util.HashSet(); s.add(content); returnFont.setFamilyNames(s); } else if ("ttc-name".equals(localName) && isCID) { multiFont.setTTCName(content); } else if ("encoding".equals(localName)) { if (singleFont != null && singleFont.getFontType() == FontType.TYPE1) { singleFont.setEncoding(content); } } else if ("cap-height".equals(localName)) { returnFont.setCapHeight(getInt(content)); } else if ("x-height".equals(localName)) { returnFont.setXHeight(getInt(content)); } else if ("ascender".equals(localName)) { returnFont.setAscender(getInt(content)); } else if ("descender".equals(localName)) { returnFont.setDescender(getInt(content)); } else if ("left".equals(localName)) { int[] bbox = returnFont.getFontBBox(); bbox[0] = getInt(content); returnFont.setFontBBox(bbox); } else if ("bottom".equals(localName)) { int[] bbox = returnFont.getFontBBox(); bbox[1] = getInt(content); returnFont.setFontBBox(bbox); } else if ("right".equals(localName)) { int[] bbox = returnFont.getFontBBox(); bbox[2] = getInt(content); returnFont.setFontBBox(bbox); } else if ("top".equals(localName)) { int[] bbox = returnFont.getFontBBox(); bbox[3] = getInt(content); returnFont.setFontBBox(bbox); } else if ("first-char".equals(localName)) { returnFont.setFirstChar(getInt(content)); } else if ("last-char".equals(localName)) { returnFont.setLastChar(getInt(content)); } else if ("flags".equals(localName)) { returnFont.setFlags(getInt(content)); } else if ("stemv".equals(localName)) { returnFont.setStemV(getInt(content)); } else if ("italic-angle".equals(localName)) { returnFont.setItalicAngle(getInt(content)); } else if ("missing-width".equals(localName)) { returnFont.setMissingWidth(getInt(content)); } else if ("cid-type".equals(localName)) { multiFont.setCIDType(CIDFontType.byName(content)); } else if ("default-width".equals(localName)) { multiFont.setDefaultWidth(getInt(content)); } else if ("cid-widths".equals(localName)) { int[] wds = new int[cidWidths.size()]; int j = 0; for (int count = 0; count < cidWidths.size(); count++) { Integer i = (Integer)cidWidths.get(count); wds[j++] = i.intValue(); } //multiFont.addCIDWidthEntry(cidWidthIndex, wds); multiFont.setWidthArray(wds); } else if ("bfranges".equals(localName)) { multiFont.setBFEntries((BFEntry[])bfranges.toArray(new BFEntry[0])); } text.setLength(0); //Reset text buffer (see characters()) } /** * {@inheritDoc} */ public void characters(char[] ch, int start, int length) { text.append(ch, start, length); } }




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