Apache FOP 2.2 fop.xconf中字体元素的模拟样式属性

Question

我正在尝试使用单一字体（FreeSans.ttf）进行普通，粗体和斜体，但simulate-style功能似乎没有任何效果。

这是相关的字体配置：

<font kerning="yes" embed-url="FreeSans.TTF" simulate-style="true">
    <font-triplet name="Free Sans" style="normal" weight="normal"/>
    <font-triplet name="Free Sans" style="italic" weight="normal"/>
    <font-triplet name="Free Sans" style="normal" weight="bold"/>
    <font-triplet name="Free Sans" style="italic" weight="bold"/>
</font>

XSLT转型：

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions">
    <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
    <xsl:template match="/">
        <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format" font-family="Free Sans">
            <fo:layout-master-set>
                <fo:simple-page-master master-name="A4" page-width="210mm" page-height="297mm" margin-top="1cm" margin-bottom="1cm" margin-left="1cm" margin-right="1cm">
                  <fo:region-body/>
                </fo:simple-page-master>
            </fo:layout-master-set>
            <fo:page-sequence master-reference="A4">
                <fo:flow flow-name="xsl-region-body">
                    <fo:block>This <fo:inline font-weight="bold">document</fo:inline> is created with empty user stylesheet./fo:block>
                </fo:flow>
            </fo:page-sequence>
        </fo:root>
    </xsl:template>
</xsl:stylesheet>

C＃发布代码：

public static void Publish(string xslFoFile, string xConfFile, string outputFile, FopMode fopMode, bool cgmOption, NLog.Logger logger)
        {
            java.io.File xslFoFileFile = new java.io.File(xslFoFile);
            java.io.File xConfFileFile = new java.io.File(HttpUtility.UrlDecode(xConfFile));

            FopFactory fopFactory = FopFactory.newInstance(xConfFileFile);

            FOUserAgent foUserAgent = fopFactory.newFOUserAgent();

            EventListener eventListener = new FopEventListener(logger);
            foUserAgent.getEventBroadcaster().addEventListener(eventListener);

            if (cgmOption)
            {
                IIORegistry.getDefaultInstance().registerServiceProvider(new CGMImageReaderSpi());
            }

            OutputStream outputStream = new DotNetOutputMemoryStream();
            if (fopMode == FopMode.Fo2Pdf)
            {
                Fop fop = fopFactory.newFop("application/pdf", foUserAgent, outputStream);
                var transformerFactory = new org.apache.xalan.xsltc.trax.TransformerFactoryImpl();
                var transformer = transformerFactory.newTransformer();
                StreamSource streamSource = new StreamSource(xslFoFileFile);
                var saxResult = new SAXResult(fop.getDefaultHandler());
                transformer.transform(streamSource, saxResult);
            }

            using (FileStream fileStream = System.IO.File.Create(outputFile))
            {
                var data = ((DotNetOutputMemoryStream)outputStream).Stream.ToArray();
                fileStream.Write(data, 0, data.Length);
            }
        }

PDF渲染时没有任何消息或错误。