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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.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.fop.apps.FOPException;
import org.apache.fop.apps.io.InternalResourceResolver;
import org.apache.fop.fonts.DefaultFontConfig.Directory;
import org.apache.fop.fonts.autodetect.FontFileFinder;
import org.apache.fop.fonts.autodetect.FontInfoFinder;
import org.apache.fop.util.LogUtil;
/**
* The default configurator for fonts. This configurator can configure the more generic fonts used
* by the renderers i.e. TTF, Type1 etc...
*/
public class DefaultFontConfigurator implements FontConfigurator {
/** logger instance */
protected static final Log log = LogFactory.getLog(DefaultFontConfigurator.class);
private final FontManager fontManager;
private final InternalResourceResolver resourceResolver;
private final FontEventListener listener;
private final boolean strict;
/**
* Main constructor
* @param fontManager the font manager
* @param listener the font event listener
* @param strict true if an Exception should be thrown if an error is found.
*/
public DefaultFontConfigurator(FontManager fontManager, FontEventListener listener, boolean strict) {
this.fontManager = fontManager;
this.resourceResolver = fontManager.getResourceResolver();
this.listener = listener;
this.strict = strict;
}
/**
* Initializes font info settings from the user configuration
* @throws FOPException if an exception occurs while processing the configuration
*/
public List configure(FontConfig fontInfoConfig) throws FOPException {
List fontInfoList = new ArrayList();
if (fontInfoConfig != null) {
assert fontInfoConfig instanceof DefaultFontConfig;
DefaultFontConfig adobeFontInfoConfig = (DefaultFontConfig) fontInfoConfig;
long start = 0;
if (log.isDebugEnabled()) {
log.debug("Starting font configuration...");
start = System.currentTimeMillis();
}
FontAdder fontAdder = new FontAdder(fontManager, resourceResolver, listener);
// native o/s search (autodetect) configuration
fontManager.autoDetectFonts(adobeFontInfoConfig.isAutoDetectFonts(), fontAdder, strict,
listener, fontInfoList);
// Add configured directories to FontInfo list
addDirectories(adobeFontInfoConfig, fontAdder, fontInfoList);
// Add configured fonts to FontInfo
FontCache fontCache = fontManager.getFontCache();
try {
addFonts(adobeFontInfoConfig, fontCache, fontInfoList);
} catch (URISyntaxException use) {
LogUtil.handleException(log, use, strict);
}
// Update referenced fonts (fonts which are not to be embedded)
fontManager.updateReferencedFonts(fontInfoList);
// Renderer-specific referenced fonts
List referencedFonts = adobeFontInfoConfig.getReferencedFontFamily();
if (referencedFonts.size() > 0) {
FontTriplet.Matcher matcher = FontManagerConfigurator.createFontsMatcher(
referencedFonts, strict);
fontManager.updateReferencedFonts(fontInfoList, matcher);
}
// Update font cache if it has changed
fontManager.saveCache();
if (log.isDebugEnabled()) {
log.debug("Finished font configuration in "
+ (System.currentTimeMillis() - start) + "ms");
}
}
return Collections.unmodifiableList(fontInfoList);
}
private void addDirectories(DefaultFontConfig fontInfoConfig, FontAdder fontAdder,
List fontInfoList) throws FOPException {
// directory (multiple font) configuration
List directories = fontInfoConfig.getDirectories();
for (Directory directory : directories) {
// add fonts found in directory
FontFileFinder fontFileFinder = new FontFileFinder(directory.isRecursive() ? -1 : 1, listener);
List fontURLList;
try {
fontURLList = fontFileFinder.find(directory.getDirectory());
fontAdder.add(fontURLList, fontInfoList);
} catch (IOException e) {
LogUtil.handleException(log, e, strict);
} catch (URISyntaxException use) {
LogUtil.handleException(log, use, strict);
}
}
}
private void addFonts(DefaultFontConfig fontInfoConfig, FontCache fontCache,
List fontInfoList) throws FOPException, URISyntaxException {
// font file (singular) configuration
List fonts = fontInfoConfig.getFonts();
for (DefaultFontConfig.Font font : fonts) {
EmbedFontInfo embedFontInfo = getFontInfo(font, fontCache);
if (embedFontInfo != null) {
fontInfoList.add(embedFontInfo);
}
}
}
private EmbedFontInfo getFontInfo(DefaultFontConfig.Font font, FontCache fontCache)
throws FOPException, URISyntaxException {
String embed = font.getEmbedURI();
String metrics = font.getMetrics();
String afm = font.getAfm();
String pfm = font.getPfm();
URI embedUri = InternalResourceResolver.cleanURI(embed);
URI metricsUri = metrics == null ? null : InternalResourceResolver.cleanURI(metrics);
URI afmUri = (afm == null) ? null : InternalResourceResolver.cleanURI(afm);
URI pfmUri = (pfm == null) ? null : InternalResourceResolver.cleanURI(pfm);
FontUris fontUris = (afmUri != null || pfmUri != null) ? new FontUris(embedUri, metricsUri, afmUri,
pfmUri) : new FontUris(embedUri, metricsUri);
String subFont = font.getSubFont();
List tripletList = font.getTripletList();
// no font triplet info
if (tripletList.size() == 0) {
URI fontUri = resourceResolver.resolveFromBase(embedUri);
FontInfoFinder finder = new FontInfoFinder();
finder.setEventListener(listener);
EmbedFontInfo[] infos = finder.find(fontUri, resourceResolver, fontCache);
return infos[0]; //When subFont is set, only one font is returned
}
EncodingMode encodingMode = EncodingMode.getValue(font.getEncodingMode());
EmbeddingMode embeddingMode = EmbeddingMode.getValue(font.getEmbeddingMode());
EmbedFontInfo embedFontInfo = new EmbedFontInfo(fontUris, font.isKerning(),
font.isAdvanced(), tripletList, subFont, encodingMode, embeddingMode,
font.getSimulateStyle(), font.getEmbedAsType1(), font.getUseSVG());
if (fontCache != null) {
if (!fontCache.containsFont(embedFontInfo)) {
fontCache.addFont(embedFontInfo, resourceResolver);
}
}
if (log.isDebugEnabled()) {
URI embedFile = embedFontInfo.getEmbedURI();
log.debug("Adding font " + (embedFile != null ? embedFile + ", " : "")
+ "metrics URI " + embedFontInfo.getMetricsURI());
for (FontTriplet triplet : tripletList) {
log.debug(" Font triplet "
+ triplet.getName() + ", "
+ triplet.getStyle() + ", "
+ triplet.getWeight());
}
}
return embedFontInfo;
}
}
