I am trying to generate PNG text icons from SVG in Cocoon. I just
want a PNG with no extra
space around the text.
I use the following match in my sitemap and generate the appropriate
text icon by calling
1) .../nav2.png?icon-text=abc
2) .../nav2.png?icon-
text=Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogoch
3) ...
<map:match pattern="nav2.png">
<map:generate src="resources/svg/nav2.svg" type="file" />
<map:transform src="resources/svg/nav2.xslt">
<map:parameter name="icon-text" value="{request-param:icon-text}"
/>
</map:transform>
<map:serialize type="svg2png" />
</map:match>
The generated icon should contain the text and nothing else. The
following is the template I
use (see <map:generate> above).
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
xmlns:svg="http://www.w3.org/2000/svg";
xmlns="http://www.w3.org/2000/svg";>
<text />
</svg>
And this is the transformation (see <map:transform> above).
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="2.0"
xmlns:svg="http://www.w3.org/2000/svg"; xmlns="http://www.w3.org/2000/
svg">
<xsl:param name="icon-text" />
<xsl:template match="/svg:svg/svg:text">
<text
style="font-size:15px;font-style:normal;font-variant:normal;font-
weight:normal;font-stretch:normal;writing-mode:lr-tb;fill:black;fill-
opacity:1;font-family:VAG Rounded Std Thin"
x="0"
y="15px"
id="icon-text">
<xsl:value-of select="$icon-text" />
</text>
</xsl:template>
<xsl:template match="svg:*">
<xsl:copy>
<xsl:apply-templates select="*|@*|text()" />
</xsl:copy>
</xsl:template>
<xsl:template match="@*">
<xsl:copy-of select="." />
</xsl:template>
</xsl:stylesheet>
This all works in principle but the PNGs generated have non-
predictable widths (with a
variance in height in occasional cases). It is as though the text is
being padded with
blanks to the right. I can't pass a parameter "height" to the SVG
serializer because I don't
know how long the rendered text is.
Can anyone point to my error? How can I specify that I want to
generate a text icon whose
width is defined by the rendered length of the text?
Steve
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