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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.fonts;
-
- import java.io.File;
- import java.net.MalformedURLException;
- import java.util.List;
- import java.util.regex.Pattern;
-
- import org.apache.avalon.framework.configuration.Configuration;
- import org.apache.avalon.framework.configuration.ConfigurationException;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.fonts.substitute.FontSubstitutions;
- import org.apache.fop.fonts.substitute.FontSubstitutionsConfigurator;
- import org.apache.fop.util.LogUtil;
-
- /**
- * Configurator of the FontManager
- */
- public class FontManagerConfigurator {
-
- /** logger instance */
- private static Log log = LogFactory.getLog(FontManagerConfigurator.class);
-
- private Configuration cfg;
-
- /**
- * Main constructor
- * @param cfg the font manager configuration object
- */
- public FontManagerConfigurator(Configuration cfg) {
- this.cfg = cfg;
- }
-
- /**
- * Initializes font settings from the user configuration
- * @param fontManager a font manager
- * @param strict true if strict checking of the configuration is enabled
- * @throws FOPException if an exception occurs while processing the configuration
- */
- public void configure(FontManager fontManager, boolean strict) throws FOPException {
- // caching (fonts)
- if (cfg.getChild("use-cache", false) != null) {
- try {
- fontManager.setUseCache(cfg.getChild("use-cache").getValueAsBoolean());
- } catch (ConfigurationException e) {
- LogUtil.handleException(log, e, true);
- }
- }
- if (cfg.getChild("cache-file", false) != null) {
- try {
- fontManager.setCacheFile(new File(cfg.getChild("cache-file").getValue()));
- } catch (ConfigurationException e) {
- LogUtil.handleException(log, e, true);
- }
- }
- if (cfg.getChild("font-base", false) != null) {
- try {
- fontManager.setFontBaseURL(cfg.getChild("font-base").getValue(null));
- } catch (MalformedURLException mfue) {
- LogUtil.handleException(log, mfue, true);
- }
- }
-
- // global font configuration
- Configuration fontsCfg = cfg.getChild("fonts", false);
- if (fontsCfg != null) {
-
- // font substitution
- Configuration substitutionsCfg = fontsCfg.getChild("substitutions", false);
- if (substitutionsCfg != null) {
- FontSubstitutions substitutions = new FontSubstitutions();
- new FontSubstitutionsConfigurator(substitutionsCfg).configure(substitutions);
- fontManager.setFontSubstitutions(substitutions);
- }
-
- // referenced fonts (fonts which are not to be embedded)
- Configuration referencedFontsCfg = fontsCfg.getChild("referenced-fonts", false);
- if (referencedFontsCfg != null) {
- FontTriplet.Matcher matcher = createFontsMatcher(
- referencedFontsCfg, strict);
- fontManager.setReferencedFontsMatcher(matcher);
- }
-
- }
- }
-
- /**
- * Creates a font triplet matcher from a configuration object.
- * @param cfg the configuration object
- * @param strict true for strict configuraton error handling
- * @return the font matcher
- * @throws FOPException if an error occurs while building the matcher
- */
- public static FontTriplet.Matcher createFontsMatcher(
- Configuration cfg, boolean strict) throws FOPException {
- List matcherList = new java.util.ArrayList();
- Configuration[] matches = cfg.getChildren("match");
- for (int i = 0; i < matches.length; i++) {
- try {
- matcherList.add(new FontFamilyRegExFontTripletMatcher(
- matches[i].getAttribute("font-family")));
- } catch (ConfigurationException ce) {
- LogUtil.handleException(log, ce, strict);
- continue;
- }
- }
- FontTriplet.Matcher orMatcher = new OrFontTripletMatcher(
- (FontTriplet.Matcher[])matcherList.toArray(
- new FontTriplet.Matcher[matcherList.size()]));
- return orMatcher;
- }
-
- private static class OrFontTripletMatcher implements FontTriplet.Matcher {
-
- private FontTriplet.Matcher[] matchers;
-
- public OrFontTripletMatcher(FontTriplet.Matcher[] matchers) {
- this.matchers = matchers;
- }
-
- /** {@inheritDoc} */
- public boolean matches(FontTriplet triplet) {
- for (int i = 0, c = matchers.length; i < c; i++) {
- if (matchers[i].matches(triplet)) {
- return true;
- }
- }
- return false;
- }
-
- }
-
- private static class FontFamilyRegExFontTripletMatcher implements FontTriplet.Matcher {
-
- private Pattern regex;
-
- public FontFamilyRegExFontTripletMatcher(String regex) {
- this.regex = Pattern.compile(regex);
- }
-
- /** {@inheritDoc} */
- public boolean matches(FontTriplet triplet) {
- return regex.matcher(triplet.getName()).matches();
- }
-
- }
-
- }
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