我正在升级batik-1.7到1.11和fop-0.94到2.2。我正在使用fop的PDFTranscoder在我的应用程序中将SVG转换为PDF。描边不透明度应用于svg中的文本。升级pdf之前看起来不错，结果与不透明度一样。但升级后描边不透明度不适用于文本。
以下是用于将svg转换为pdf的代码：
Transcoder transcoder = new PDFTranscoder();
TranscoderInput input = new TranscoderInput(svgFile.toURI().toString());
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
TranscoderOutput output = new TranscoderOutput(outStream);
transcoder.transcode(input, output);
使用的svg文件：
<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="418" viewBox="0,0 65416,45424" width="816" xml:space="preserve">
<defs>
<style type="text/css"><![CDATA[
.P{
font-family:"Arial";
font-weight:normal;
font-size:247px;
font-family:"Lucida Sans";
font-style:normal;
stroke:#000;
stroke-width:16px;
stroke-dasharray:none;
stroke-linejoin:miter;
stroke-miterlimit:10;
stroke-width:0.5px;
stroke-linecap:square;
stroke-opacity:1.0;
fill:none;
fill-opacity:0.0;
fill-rule:evenodd;
}
.M{
font-family:"Arial";
font-weight:normal;
font-size:282px;
font-style:normal;
stroke:#00F;
stroke-dasharray:none;
stroke-linejoin:miter;
stroke-miterlimit:10;
stroke-width:2px;
stroke-linecap:square;
stroke-opacity:1.0;
fill:#00F;
fill-rule:evenodd;
fill-opacity:1.0;
}
.dimmed{
stroke-opacity:0.5;
fill-opacity:0.0;
}
]]></style>
</defs>
<g>
<g>
<path class="dimmed P" d="M7964,25320h5669m-5669,0v1905m0,-1401h5669m-5669,467h5669m-5669,467h5669m-5669,467h5669m-4968,-1401v1401m934,-1401v1401m785,-1401v1401m743,-1401v1401m1295,-1401v1401m1210,-1905v1905"/>
<text class="dimmed M" x="10258" y="25695">CONN3</text>
<text class="M" x="8054" y="26172">Cav</text>
</g>
</g>
</svg>
“暗淡”类中的描边不透明度在升级蜡染和fop后对文本“CONN3”没有任何影响。
发生上述错误是因为文本的描边不透明度默认分配为“1”。因此，无论我们传递给描边不透明度属性的值是什么，它都没有任何影响。
我已经通过修改fop源代码中PDFTextPainter.java的"applyColor AndPaint"解决了这个问题，并重建了jar。
private void applyColorAndPaint(TextPaintInfo tpi) {
Paint fillPaint = tpi.fillPaint;
Paint strokePaint = tpi.strokePaint;
Stroke stroke = tpi.strokeStroke;
int fillAlpha = PDFGraphics2D.OPAQUE;
int strokeAlpha = PDFGraphics2D.OPAQUE;
if (fillPaint instanceof Color) {
Color col = (Color) fillPaint;
pdf.applyColor(col, true);
fillAlpha = col.getAlpha();
}
if (strokePaint instanceof Color) {
Color col = (Color) strokePaint;
pdf.applyColor(col, false);
strokeAlpha = col.getAlpha();
}
pdf.applyPaint(fillPaint, true);
pdf.applyStroke(stroke);
if (strokePaint != null){
pdf.applyPaint(strokePaint, false);
}
pdf.applyAlpha(fillAlpha, strokeAlpha);
}
