build/svg_preprocess.xsl

   1 <?xml version="1.0" standalone="no"?>
   2 <xsl:stylesheet version="1.0"
   3   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
   4   xmlns:svg="http://www.w3.org/2000/svg"
   5   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape">
   6
   7   <!-- write header to output -->
   8   <xsl:output
   9     method="xml"
  10     encoding="utf-8"
  11     doctype-public="-//W3C//DTD SVG 1.1//EN"
  12     doctype-system="http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"/>
  13
  14
  15   <!-- default template: matches all elements e.g. <xsl:example>
  16        and all attributes within elements e.g. x="foo" -->
  17
  18   <xsl:template match="@*|node()">
  19     <xsl:copy>
  20       <xsl:apply-templates select="@*|node()"/>
  21     </xsl:copy>
  22   </xsl:template>
  23
  24   <!-- svg preprocessing: match all svg elements (listed) and all
  25        their attributes (matched by wildcard /@* ).
  26        This template is called repeatedly - once for each attribute
  27        matched by this search. -->
  28
  29   <xsl:template match="svg:g/@*|svg:rect/@*|svg:path/@*|svg:circle/@*|
  30   svg:ellipse/@*|svg:line/@*|svg:polyline/@*|svg:polygon/@*|svg:text/@*">
  31   <!-- copy current attribute's existing value -->
  32    <xsl:copy-of select="."/>
  33   <!-- select first 5 characters of the id= and inkscape:label fields
  34        of current element -->
  35    <xsl:variable name="IDPrefix" select="substring(../@id,1,5)"/>
  36    <xsl:variable name="LabelPrefix" select="substring(../@inkscape:label,1,5)"/>
  37   <!-- disable anti-aliasing for this element (group, path, circle etc)
  38        if prefix matches list in command-line argument DisableAA_Select
  39        eg. DisableAA_Select='NOAA_MASK_' - anti-aliasing will be disabled
  40        for elements with ids/labels prefixed with NOAA_ or MASK_ -->
  41    <xsl:if test="(contains($DisableAA_Select,$IDPrefix) and
  42                  string-length($IDPrefix)=5)
  43                  or (contains($DisableAA_Select,$LabelPrefix) and
  44                  string-length($LabelPrefix)=5)">
  45     <xsl:attribute name="style">
  46   <!-- this style attribute disables anti-aliasing in rsvg; behaviour may
  47        vary according to svg renderer -->
  48      <xsl:text>shape-rendering:optimizeSpeed;</xsl:text>
  49      <xsl:value-of select="../@style"/>
  50     </xsl:attribute>
  51    </xsl:if>
  52   </xsl:template>
  53 </xsl:stylesheet>