http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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: FOPFontFamilyResolverImpl.java 1570362 2014-02-20 21:45:20Z vhennebert $ */

package org.apache.fop.svg.font;

import java.io.InputStream;
import java.util.Map;

import org.apache.batik.bridge.FontFace;
import org.apache.batik.gvt.font.GVTFontFace;
import org.apache.batik.gvt.font.GVTFontFamily;

import org.apache.fop.fonts.Font;
import org.apache.fop.fonts.FontInfo;
import org.apache.fop.fonts.FontTriplet;
import org.apache.fop.fonts.Typeface;

public class FOPFontFamilyResolverImpl implements FOPFontFamilyResolver {

    private final FontInfo fontInfo;

    public FOPFontFamilyResolverImpl(FontInfo fontInfo) {
        this.fontInfo = fontInfo;
    }

    public FOPGVTFontFamily resolve(String familyName) {
        return resolve(familyName, new GVTFontFace(familyName));
    }

    public FOPGVTFontFamily resolve(String familyName, FontFace fontFace) {
        return resolve(familyName, (GVTFontFace) FontFace.createFontFace(familyName, fontFace));
    }

    private FOPGVTFontFamily resolve(String familyName, GVTFontFace fontFace) {
        FOPGVTFontFamily gvtFontFamily = null;
        FontTriplet triplet = fontInfo.fontLookup(familyName, Font.STYLE_NORMAL, Font.WEIGHT_NORMAL);
        if (fontInfo.hasFont(familyName, Font.STYLE_NORMAL, Font.WEIGHT_NORMAL)) {
            gvtFontFamily = new FOPGVTFontFamily(fontInfo, familyName, triplet, fontFace);
        }
        return gvtFontFamily;
    }

    public GVTFontFamily loadFont(InputStream in, FontFace fontFace) throws Exception {
        throw new UnsupportedOperationException("Not implemented");
    }

    public FOPGVTFontFamily getDefault() {
        return resolve("any");
    }

    public FOPGVTFontFamily getFamilyThatCanDisplay(char c) {
        Map<String, Typeface> fonts = fontInfo.getFonts();
        for (Typeface font : fonts.values()) {
            if (font.hasChar(c)) {
                String fontFamily = font.getFamilyNames().iterator().next();
                return new FOPGVTFontFamily(fontInfo, fontFamily,
                        new FontTriplet(fontFamily, Font.STYLE_NORMAL, Font.WEIGHT_NORMAL),
                        new GVTFontFace(fontFamily));
            }
        }
        return null;
    }

}