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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.render;
import java.util.Collections;
import java.util.List;
import org.apache.fop.apps.FOPException;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.io.InternalResourceResolver;
import org.apache.fop.fonts.CustomFontCollection;
import org.apache.fop.fonts.DefaultFontConfigurator;
import org.apache.fop.fonts.EmbedFontInfo;
import org.apache.fop.fonts.FontCollection;
import org.apache.fop.fonts.FontConfigurator;
import org.apache.fop.fonts.FontEventAdapter;
import org.apache.fop.fonts.FontInfo;
import org.apache.fop.fonts.FontManager;
import org.apache.fop.render.RendererConfig.RendererConfigParser;
import org.apache.fop.render.intermediate.IFDocumentHandler;
import org.apache.fop.render.intermediate.IFDocumentHandlerConfigurator;
import org.apache.fop.render.pdf.PDFRendererConfig.PDFRendererConfigParser;
/**
* Base Print renderer configurator (mostly handles font configuration)
*/
public abstract class PrintRendererConfigurator extends AbstractRendererConfigurator
implements IFDocumentHandlerConfigurator {
private final RendererConfigParser rendererConfigParser;
private final FontConfigurator<EmbedFontInfo> fontInfoConfigurator;
/**
* Default constructor
* @param userAgent user agent
*/
public PrintRendererConfigurator(FOUserAgent userAgent, RendererConfigParser rendererConfigParser) {
this(userAgent, rendererConfigParser,
new DefaultFontConfigurator(userAgent.getFontManager(), new FontEventAdapter(
userAgent.getEventBroadcaster()), userAgent.validateUserConfigStrictly()));
}
/**
* Default constructor
* @param userAgent user agent
*/
public PrintRendererConfigurator(FOUserAgent userAgent, RendererConfigParser rendererConfigParser,
FontConfigurator<EmbedFontInfo> fontInfoConfigurator) {
super(userAgent);
this.rendererConfigParser = rendererConfigParser;
this.fontInfoConfigurator = fontInfoConfigurator;
}
/**
* Returns the renderer configuration data for a specific renderer.
*
* @param documentHandler the document handler
* @return the renderer configuration data
* @throws FOPException if an error occurs
*/
protected RendererConfig getRendererConfig(IFDocumentHandler documentHandler) throws FOPException {
return getRendererConfig(documentHandler.getMimeType());
}
/**
* gets the renderer configuration data for a specific renderer.
*
* @param mimeType the MIME type
* @return the renderer configuration data
* @throws FOPException if an error occurs
*/
protected RendererConfig getRendererConfig(String mimeType) throws FOPException {
return userAgent.getRendererConfig(mimeType, rendererConfigParser);
}
/**
* gets the renderer configuration data for a specific renderer.
*
* @param renderer the renderer
* @return the renderer configuration data
* @throws FOPException if an error occurs
*/
protected RendererConfig getRendererConfig(Renderer renderer) throws FOPException {
return getRendererConfig(renderer.getMimeType());
}
/**
* Builds a list of EmbedFontInfo objects for use with the setup() method.
*
* @param renderer print renderer
* @throws FOPException if something's wrong with the config data
*/
public void configure(Renderer renderer) throws FOPException {
PrintRenderer printRenderer = (PrintRenderer) renderer;
List<EmbedFontInfo> embedFontInfoList = buildFontList(renderer.getMimeType());
printRenderer.addFontList(embedFontInfoList);
}
/** {@inheritDoc} */
public void configure(IFDocumentHandler documentHandler) throws FOPException {
//nop
}
/** {@inheritDoc} */
public void setupFontInfo(String mimeType, FontInfo fontInfo) throws FOPException {
FontManager fontManager = userAgent.getFontManager();
List<FontCollection> fontCollections = getDefaultFontCollection();
fontCollections.add(getCustomFontCollection(fontManager.getResourceResolver(), mimeType));
fontManager.setup(fontInfo, fontCollections.toArray(new FontCollection[fontCollections.size()]));
}
protected abstract List<FontCollection> getDefaultFontCollection();
/**
* Returns the font collection for custom configured fonts.
*
* @param resolver the resource resolver
* @param mimeType the renderer MIME type
* @return the font collection
* @throws FOPException if an error occurs
*/
protected FontCollection getCustomFontCollection(InternalResourceResolver resolver, String mimeType)
throws FOPException {
List<EmbedFontInfo> fontList;
if (rendererConfigParser == null) {
fontList = Collections.<EmbedFontInfo>emptyList();
} else {
fontList = fontInfoConfigurator.configure(getRendererConfig(mimeType).getFontInfoConfig());
}
return createCollectionFromFontList(resolver, fontList);
}
/***
* Creates the font collection given a list of embedded font infomation.
*
* @param resolver the resource resolver
* @param fontList the embedded font infomation
* @return the font collection
*/
protected FontCollection createCollectionFromFontList(InternalResourceResolver resolver,
List<EmbedFontInfo> fontList) {
return new CustomFontCollection(resolver, fontList,
userAgent.isComplexScriptFeaturesEnabled());
}
private List<EmbedFontInfo> buildFontList(String mimeType) throws FOPException {
return fontInfoConfigurator.configure(getRendererConfig(mimeType).getFontInfoConfig());
}
public static PrintRendererConfigurator createDefaultInstance(FOUserAgent userAgent) {
// Since PDF is the default output is PDF, it makes sense for the default config parser
// to also be the PDF flavour
return new PrintRendererConfigurator(userAgent, new PDFRendererConfigParser()) {
@Override
protected List<FontCollection> getDefaultFontCollection() {
throw new UnsupportedOperationException();
}
};
}
}
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