| /* |
| * 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.tools.fontlist; |
| |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.SortedMap; |
| |
| import org.apache.fop.apps.FOPException; |
| import org.apache.fop.apps.FOUserAgent; |
| import org.apache.fop.apps.FopFactory; |
| import org.apache.fop.fonts.FontEventListener; |
| import org.apache.fop.fonts.FontInfo; |
| import org.apache.fop.fonts.FontMetrics; |
| import org.apache.fop.fonts.FontTriplet; |
| import org.apache.fop.render.intermediate.IFDocumentHandler; |
| import org.apache.fop.render.intermediate.IFDocumentHandlerConfigurator; |
| |
| /** |
| * Generates a list of available fonts. |
| */ |
| public class FontListGenerator { |
| |
| /** |
| * List all fonts configured for a particular output format (identified by MIME type). |
| * The sorted map returned looks like this: |
| * <code>SortedMap<String/font-family, List<{@link FontSpec}>></code> |
| * @param fopFactory the FOP factory (already configured) |
| * @param mime the MIME type identified the selected output format |
| * @param listener a font event listener to catch any font-related errors while listing fonts |
| * @return the map of font families |
| * @throws FOPException if an error occurs setting up the fonts |
| */ |
| public SortedMap listFonts(FopFactory fopFactory, String mime, FontEventListener listener) |
| throws FOPException { |
| FontInfo fontInfo = setupFonts(fopFactory, mime, listener); |
| SortedMap fontFamilies = buildFamilyMap(fontInfo); |
| return fontFamilies; |
| } |
| |
| private FontInfo setupFonts(FopFactory fopFactory, String mime, FontEventListener listener) |
| throws FOPException { |
| FOUserAgent userAgent = fopFactory.newFOUserAgent(); |
| |
| //The document handler is only instantiated to get access to its configurator! |
| IFDocumentHandler documentHandler |
| = fopFactory.getRendererFactory().createDocumentHandler(userAgent, mime); |
| IFDocumentHandlerConfigurator configurator = documentHandler.getConfigurator(); |
| |
| FontInfo fontInfo = new FontInfo(); |
| configurator.setupFontInfo(documentHandler, fontInfo); |
| return fontInfo; |
| } |
| |
| private SortedMap buildFamilyMap(FontInfo fontInfo) { |
| Map fonts = fontInfo.getFonts(); |
| Set keyBag = new java.util.HashSet(fonts.keySet()); |
| |
| Map keys = new java.util.HashMap(); |
| SortedMap fontFamilies = new java.util.TreeMap(); |
| //SortedMap<String/font-family, List<FontSpec>> |
| |
| Iterator iter = fontInfo.getFontTriplets().entrySet().iterator(); |
| while (iter.hasNext()) { |
| Map.Entry entry = (Map.Entry)iter.next(); |
| FontTriplet triplet = (FontTriplet)entry.getKey(); |
| String key = (String)entry.getValue(); |
| FontSpec container; |
| if (keyBag.contains(key)) { |
| keyBag.remove(key); |
| |
| FontMetrics metrics = (FontMetrics)fonts.get(key); |
| |
| container = new FontSpec(key, metrics); |
| container.addFamilyNames(metrics.getFamilyNames()); |
| keys.put(key, container); |
| String firstFamilyName = (String)container.getFamilyNames().first(); |
| List containers = (List)fontFamilies.get(firstFamilyName); |
| if (containers == null) { |
| containers = new java.util.ArrayList(); |
| fontFamilies.put(firstFamilyName, containers); |
| } |
| containers.add(container); |
| Collections.sort(containers); |
| |
| } else { |
| container = (FontSpec)keys.get(key); |
| } |
| container.addTriplet(triplet); |
| } |
| |
| return fontFamilies; |
| } |
| |
| } |