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+<?xml version='1.0'?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns:xlink="http://www.w3.org/1999/xlink"
+ xmlns:stext="http://nwalsh.com/xslt/ext/com.nwalsh.saxon.TextFactory"
+ xmlns:simg="http://nwalsh.com/xslt/ext/com.nwalsh.saxon.ImageIntrinsics"
+ xmlns:ximg="xaln://com.nwalsh.xalan.ImageIntrinsics"
+ xmlns:xtext="com.nwalsh.xalan.Text"
+ xmlns:lxslt="http://xml.apache.org/xslt"
+ exclude-result-prefixes="xlink stext xtext lxslt simg ximg"
+ extension-element-prefixes="stext xtext"
+ version='1.0'>
+
+<!-- ********************************************************************
+ $Id$
+ ********************************************************************
+
+ This file is part of the XSL DocBook Stylesheet distribution.
+ See ../README or http://nwalsh.com/docbook/xsl/ for copyright
+ and other information.
+
+ Contributors:
+ Colin Paul Adams, <colin@colina.demon.co.uk>
+
+ ******************************************************************** -->
+
+<lxslt:component prefix="xtext" elements="insertfile"/>
+<lxslt:component prefix="ximg" functions="new getWidth getDepth"/>
+
+<!-- ==================================================================== -->
+<!-- Graphic format tests for the HTML backend -->
+
+<xsl:template name="is.graphic.format">
+ <xsl:param name="format"></xsl:param>
+ <xsl:if test="$format = 'SVG'
+ or $format = 'PNG'
+ or $format = 'JPG'
+ or $format = 'JPEG'
+ or $format = 'linespecific'
+ or $format = 'GIF'
+ or $format = 'GIF87a'
+ or $format = 'GIF89a'
+ or $format = 'BMP'">1</xsl:if>
+</xsl:template>
+
+<xsl:template name="is.graphic.extension">
+ <xsl:param name="ext"></xsl:param>
+ <xsl:variable name="lcext" select="translate($ext,
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+ 'abcdefghijklmnopqrstuvwxyz')"/>
+ <xsl:if test="$lcext = 'svg'
+ or $lcext = 'png'
+ or $lcext = 'jpeg'
+ or $lcext = 'jpg'
+ or $lcext = 'avi'
+ or $lcext = 'mpg'
+ or $lcext = 'mpeg'
+ or $lcext = 'qt'
+ or $lcext = 'gif'
+ or $lcext = 'bmp'">1</xsl:if>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="screenshot">
+ <div class="{name(.)}">
+ <xsl:apply-templates/>
+ </div>
+</xsl:template>
+
+<xsl:template match="screeninfo">
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template name="process.image">
+ <!-- When this template is called, the current node should be -->
+ <!-- a graphic, inlinegraphic, imagedata, or videodata. All -->
+ <!-- those elements have the same set of attributes, so we can -->
+ <!-- handle them all in one place. -->
+ <xsl:param name="tag" select="'img'"/>
+ <xsl:param name="alt"/>
+ <xsl:param name="longdesc"/>
+
+ <!-- The HTML img element only supports the notion of content-area
+ scaling; it doesn't support the distinction between a
+ content-area and a viewport-area, so we have to make some
+ compromises.
+
+ 1. If only the content-area is specified, everything is fine.
+ (If you ask for a three inch image, that's what you'll get.)
+
+ 2. If only the viewport-area is provided:
+ - If scalefit=1, treat it as both the content-area and
+ the viewport-area. (If you ask for an image in a five inch
+ area, we'll make the image five inches to fill that area.)
+ - If scalefit=0, ignore the viewport-area specification.
+
+ Note: this is not quite the right semantic and has the additional
+ problem that it can result in anamorphic scaling, which scalefit
+ should never cause.
+
+ 3. If both the content-area and the viewport-area is specified
+ on a graphic element, ignore the viewport-area.
+ (If you ask for a three inch image in a five inch area, we'll assume
+ it's better to give you a three inch image in an unspecified area
+ than a five inch image in a five inch area.
+
+ Relative units also cause problems. As a general rule, the stylesheets
+ are operating too early and too loosely coupled with the rendering engine
+ to know things like the current font size or the actual dimensions of
+ an image. Therefore:
+
+ 1. We use a fixed size for pixels, $pixels.per.inch
+
+ 2. We use a fixed size for "em"s, $points.per.em
+
+ Percentages are problematic. In the following discussion, we speak
+ of width and contentwidth, but the same issues apply to depth and
+ contentdepth
+
+ 1. A width of 50% means "half of the available space for the image."
+ That's fine. But note that in HTML, this is a dynamic property and
+ the image size will vary if the browser window is resized.
+
+ 2. A contentwidth of 50% means "half of the actual image width". But
+ the stylesheets have no way to assess the image's actual size. Treating
+ this as a width of 50% is one possibility, but it produces behavior
+ (dynamic scaling) that seems entirely out of character with the
+ meaning.
+
+ Instead, the stylesheets define a $nominal.image.width
+ and convert percentages to actual values based on that nominal size.
+
+ Scale can be problematic. Scale applies to the contentwidth, so
+ a scale of 50 when a contentwidth is not specified is analagous to a
+ width of 50%. (If a contentwidth is specified, the scaling factor can
+ be applied to that value and no problem exists.)
+
+ If scale is specified but contentwidth is not supplied, the
+ nominal.image.width is used to calculate a base size
+ for scaling.
+
+ Warning: as a consequence of these decisions, unless the aspect ratio
+ of your image happens to be exactly the same as (nominal width / nominal height),
+ specifying contentwidth="50%" and contentdepth="50%" is NOT going to
+ scale the way you expect (or really, the way it should).
+
+ Don't do that. In fact, a percentage value is not recommended for content
+ size at all. Use scale instead.
+
+ Finally, align and valign are troublesome. Horizontal alignment is now
+ supported by wrapping the image in a <div align="{@align}"> (in block
+ contexts!). I can't think of anything (practical) to do about vertical
+ alignment.
+ -->
+
+ <xsl:variable name="width-units">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0"></xsl:when>
+ <xsl:when test="@width">
+ <xsl:call-template name="length-units">
+ <xsl:with-param name="length" select="@width"/>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:when test="not(@depth) and $default.image.width != ''">
+ <xsl:call-template name="length-units">
+ <xsl:with-param name="length" select="$default.image.width"/>
+ </xsl:call-template>
+ </xsl:when>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="width">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0"></xsl:when>
+ <xsl:when test="@width">
+ <xsl:choose>
+ <xsl:when test="$width-units = '%'">
+ <xsl:value-of select="@width"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="length-spec">
+ <xsl:with-param name="length" select="@width"/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:when test="not(@depth) and $default.image.width != ''">
+ <xsl:value-of select="$default.image.width"/>
+ </xsl:when>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="scalefit">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0">0</xsl:when>
+ <xsl:when test="@contentwidth or @contentdepth">0</xsl:when>
+ <xsl:when test="@scale">0</xsl:when>
+ <xsl:when test="@scalefit"><xsl:value-of select="@scalefit"/></xsl:when>
+ <xsl:when test="$width != '' or @depth">1</xsl:when>
+ <xsl:otherwise>0</xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="scale">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0">1.0</xsl:when>
+ <xsl:when test="@contentwidth or @contentdepth">1.0</xsl:when>
+ <xsl:when test="@scale">
+ <xsl:value-of select="@scale div 100.0"/>
+ </xsl:when>
+ <xsl:otherwise>1.0</xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="filename">
+ <xsl:choose>
+ <xsl:when test="local-name(.) = 'graphic'
+ or local-name(.) = 'inlinegraphic'">
+ <!-- handle legacy graphic and inlinegraphic by new template -->
+ <xsl:call-template name="mediaobject.filename">
+ <xsl:with-param name="object" select="."/>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:otherwise>
+ <!-- imagedata, videodata, audiodata -->
+ <xsl:call-template name="mediaobject.filename">
+ <xsl:with-param name="object" select=".."/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="intrinsicwidth">
+ <!-- This funny compound test works around a bug in XSLTC -->
+ <xsl:choose>
+ <xsl:when test="$use.extensions != 0 and $graphicsize.extension != 0">
+ <xsl:choose>
+ <xsl:when test="function-available('simg:getWidth')">
+ <xsl:value-of select="simg:getWidth(simg:new($filename),
+ $nominal.image.width)"/>
+ </xsl:when>
+ <xsl:when test="function-available('ximg:getWidth')">
+ <xsl:value-of select="ximg:getWidth(ximg:new($filename),
+ $nominal.image.width)"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$nominal.image.width"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$nominal.image.width"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="intrinsicdepth">
+ <!-- This funny compound test works around a bug in XSLTC -->
+ <xsl:choose>
+ <xsl:when test="$use.extensions != 0 and $graphicsize.extension != 0">
+ <xsl:choose>
+ <xsl:when test="function-available('simg:getDepth')">
+ <xsl:value-of select="simg:getDepth(simg:new($filename),
+ $nominal.image.depth)"/>
+ </xsl:when>
+ <xsl:when test="function-available('ximg:getDepth')">
+ <xsl:value-of select="ximg:getDepth(ximg:new($filename),
+ $nominal.image.depth)"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$nominal.image.depth"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$nominal.image.depth"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="contentwidth">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0"></xsl:when>
+ <xsl:when test="@contentwidth">
+ <xsl:variable name="units">
+ <xsl:call-template name="length-units">
+ <xsl:with-param name="length" select="@contentwidth"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:choose>
+ <xsl:when test="$units = '%'">
+ <xsl:variable name="cmagnitude">
+ <xsl:call-template name="length-magnitude">
+ <xsl:with-param name="length" select="@contentwidth"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="$intrinsicwidth * $cmagnitude div 100.0"/>
+ <xsl:text>px</xsl:text>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="length-spec">
+ <xsl:with-param name="length" select="@contentwidth"/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$intrinsicwidth"/>
+ <xsl:text>px</xsl:text>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="scaled.contentwidth">
+ <xsl:if test="$contentwidth != ''">
+ <xsl:variable name="cwidth.in.points">
+ <xsl:call-template name="length-in-points">
+ <xsl:with-param name="length" select="$contentwidth"/>
+ <xsl:with-param name="pixels.per.inch" select="$pixels.per.inch"/>
+ <xsl:with-param name="em.size" select="$points.per.em"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="$cwidth.in.points div 72.0 * $pixels.per.inch * $scale"/>
+ </xsl:if>
+ </xsl:variable>
+
+ <xsl:variable name="html.width">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0"></xsl:when>
+ <xsl:when test="$width-units = '%'">
+ <xsl:value-of select="$width"/>
+ </xsl:when>
+ <xsl:when test="$width != ''">
+ <xsl:variable name="width.in.points">
+ <xsl:call-template name="length-in-points">
+ <xsl:with-param name="length" select="$width"/>
+ <xsl:with-param name="pixels.per.inch" select="$pixels.per.inch"/>
+ <xsl:with-param name="em.size" select="$points.per.em"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="round($width.in.points div 72.0 * $pixels.per.inch)"/>
+ </xsl:when>
+ <xsl:otherwise></xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="contentdepth">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0"></xsl:when>
+ <xsl:when test="@contentdepth">
+ <xsl:variable name="units">
+ <xsl:call-template name="length-units">
+ <xsl:with-param name="length" select="@contentdepth"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:choose>
+ <xsl:when test="$units = '%'">
+ <xsl:variable name="cmagnitude">
+ <xsl:call-template name="length-magnitude">
+ <xsl:with-param name="length" select="@contentdepth"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="$intrinsicdepth * $cmagnitude div 100.0"/>
+ <xsl:text>px</xsl:text>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="length-spec">
+ <xsl:with-param name="length" select="@contentdepth"/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$intrinsicdepth"/>
+ <xsl:text>px</xsl:text>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="scaled.contentdepth">
+ <xsl:if test="$contentdepth != ''">
+ <xsl:variable name="cdepth.in.points">
+ <xsl:call-template name="length-in-points">
+ <xsl:with-param name="length" select="$contentdepth"/>
+ <xsl:with-param name="pixels.per.inch" select="$pixels.per.inch"/>
+ <xsl:with-param name="em.size" select="$points.per.em"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="$cdepth.in.points div 72.0 * $pixels.per.inch * $scale"/>
+ </xsl:if>
+ </xsl:variable>
+
+ <xsl:variable name="depth-units">
+ <xsl:if test="@depth">
+ <xsl:call-template name="length-units">
+ <xsl:with-param name="length" select="@depth"/>
+ </xsl:call-template>
+ </xsl:if>
+ </xsl:variable>
+
+ <xsl:variable name="depth">
+ <xsl:if test="@depth">
+ <xsl:choose>
+ <xsl:when test="$depth-units = '%'">
+ <xsl:value-of select="@depth"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="length-spec">
+ <xsl:with-param name="length" select="@depth"/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:if>
+ </xsl:variable>
+
+ <xsl:variable name="html.depth">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0"></xsl:when>
+ <xsl:when test="$depth-units = '%'">
+ <xsl:value-of select="$depth"/>
+ </xsl:when>
+ <xsl:when test="@depth and @depth != ''">
+ <xsl:variable name="depth.in.points">
+ <xsl:call-template name="length-in-points">
+ <xsl:with-param name="length" select="$depth"/>
+ <xsl:with-param name="pixels.per.inch" select="$pixels.per.inch"/>
+ <xsl:with-param name="em.size" select="$points.per.em"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="round($depth.in.points div 72.0 * $pixels.per.inch)"/>
+ </xsl:when>
+ <xsl:otherwise></xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="viewport">
+ <xsl:choose>
+ <xsl:when test="$ignore.image.scaling != 0">0</xsl:when>
+ <xsl:when test="local-name(.) = 'inlinegraphic'
+ or ancestor::inlinemediaobject
+ or ancestor::inlineequation">0</xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$make.graphic.viewport"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+<!--
+ <xsl:message>=====================================
+scale: <xsl:value-of select="$scale"/>, <xsl:value-of select="$scalefit"/>
+@contentwidth <xsl:value-of select="@contentwidth"/>
+$contentwidth <xsl:value-of select="$contentwidth"/>
+scaled.contentwidth: <xsl:value-of select="$scaled.contentwidth"/>
+@width: <xsl:value-of select="@width"/>
+width: <xsl:value-of select="$width"/>
+html.width: <xsl:value-of select="$html.width"/>
+@contentdepth <xsl:value-of select="@contentdepth"/>
+$contentdepth <xsl:value-of select="$contentdepth"/>
+scaled.contentdepth: <xsl:value-of select="$scaled.contentdepth"/>
+@depth: <xsl:value-of select="@depth"/>
+depth: <xsl:value-of select="$depth"/>
+html.depth: <xsl:value-of select="$html.depth"/>
+align: <xsl:value-of select="@align"/>
+valign: <xsl:value-of select="@valign"/></xsl:message>
+-->
+
+ <xsl:variable name="img">
+ <xsl:choose>
+ <xsl:when test="@format = 'SVG'">
+ <object data="{$filename}" type="image/svg+xml">
+ <xsl:call-template name="process.image.attributes">
+ <!--xsl:with-param name="alt" select="$alt"/ there's no alt here-->
+ <xsl:with-param name="html.depth" select="$html.depth"/>
+ <xsl:with-param name="html.width" select="$html.width"/>
+ <xsl:with-param name="longdesc" select="$longdesc"/>
+ <xsl:with-param name="scale" select="$scale"/>
+ <xsl:with-param name="scalefit" select="$scalefit"/>
+ <xsl:with-param name="scaled.contentdepth" select="$scaled.contentdepth"/>
+ <xsl:with-param name="scaled.contentwidth" select="$scaled.contentwidth"/>
+ <xsl:with-param name="viewport" select="$viewport"/>
+ </xsl:call-template>
+ <xsl:if test="@align">
+ <xsl:attribute name="align">
+ <xsl:choose>
+ <xsl:when test="@align = 'center'">middle</xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="@align"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:attribute>
+ </xsl:if>
+ <xsl:if test="$use.embed.for.svg != 0">
+ <embed src="{$filename}" type="image/svg+xml">
+ <xsl:call-template name="process.image.attributes">
+ <!--xsl:with-param name="alt" select="$alt"/ there's no alt here -->
+ <xsl:with-param name="html.depth" select="$html.depth"/>
+ <xsl:with-param name="html.width" select="$html.width"/>
+ <xsl:with-param name="longdesc" select="$longdesc"/>
+ <xsl:with-param name="scale" select="$scale"/>
+ <xsl:with-param name="scalefit" select="$scalefit"/>
+ <xsl:with-param name="scaled.contentdepth" select="$scaled.contentdepth"/>
+ <xsl:with-param name="scaled.contentwidth" select="$scaled.contentwidth"/>
+ <xsl:with-param name="viewport" select="$viewport"/>
+ </xsl:call-template>
+ </embed>
+ </xsl:if>
+ </object>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:element name="{$tag}">
+ <xsl:attribute name="src">
+ <xsl:choose>
+ <xsl:when test="$img.src.path != '' and
+ $tag = 'img' and
+ not(starts-with($filename, '/')) and
+ not(contains($filename, '://'))">
+ <xsl:value-of select="$img.src.path"/>
+ </xsl:when>
+ </xsl:choose>
+ <xsl:value-of select="$filename"/>
+ </xsl:attribute>
+
+ <xsl:if test="@align">
+ <xsl:attribute name="align">
+ <xsl:choose>
+ <xsl:when test="@align = 'center'">middle</xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="@align"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:attribute>
+ </xsl:if>
+
+ <xsl:call-template name="process.image.attributes">
+ <xsl:with-param name="alt">
+ <xsl:choose>
+ <xsl:when test="$alt != ''">
+ <xsl:copy-of select="$alt"/>
+ </xsl:when>
+ <xsl:when test="ancestor::figure">
+ <xsl:value-of select="normalize-space(ancestor::figure/title)"/>
+ </xsl:when>
+ </xsl:choose>
+ </xsl:with-param>
+ <xsl:with-param name="html.depth" select="$html.depth"/>
+ <xsl:with-param name="html.width" select="$html.width"/>
+ <xsl:with-param name="longdesc" select="$longdesc"/>
+ <xsl:with-param name="scale" select="$scale"/>
+ <xsl:with-param name="scalefit" select="$scalefit"/>
+ <xsl:with-param name="scaled.contentdepth" select="$scaled.contentdepth"/>
+ <xsl:with-param name="scaled.contentwidth" select="$scaled.contentwidth"/>
+ <xsl:with-param name="viewport" select="$viewport"/>
+ </xsl:call-template>
+ </xsl:element>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+
+ <xsl:variable name="bgcolor">
+ <xsl:call-template name="dbhtml-attribute">
+ <xsl:with-param name="pis"
+ select="../processing-instruction('dbhtml')"/>
+ <xsl:with-param name="attribute" select="'background-color'"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="use.viewport"
+ select="$viewport != 0
+ and ($html.width != ''
+ or ($html.depth != '' and $depth-units != '%')
+ or $bgcolor != ''
+ or @valign)"/>
+
+ <xsl:choose>
+ <xsl:when test="$use.viewport">
+ <table border="0" summary="manufactured viewport for HTML img"
+ cellspacing="0" cellpadding="0">
+ <xsl:if test="$html.width != ''">
+ <xsl:attribute name="width">
+ <xsl:value-of select="$html.width"/>
+ </xsl:attribute>
+ </xsl:if>
+ <tr>
+ <xsl:if test="$html.depth != '' and $depth-units != '%'">
+ <!-- don't do this for percentages because browsers get confused -->
+ <xsl:choose>
+ <xsl:when test="$css.decoration != 0">
+ <xsl:attribute name="style">
+ <xsl:text>height: </xsl:text>
+ <xsl:value-of select="$html.depth"/>
+ <xsl:text>px</xsl:text>
+ </xsl:attribute>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:attribute name="height">
+ <xsl:value-of select="$html.depth"/>
+ </xsl:attribute>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:if>
+ <td>
+ <xsl:if test="$bgcolor != ''">
+ <xsl:choose>
+ <xsl:when test="$css.decoration != 0">
+ <xsl:attribute name="style">
+ <xsl:text>background-color: </xsl:text>
+ <xsl:value-of select="$bgcolor"/>
+ </xsl:attribute>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:attribute name="bgcolor">
+ <xsl:value-of select="$bgcolor"/>
+ </xsl:attribute>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:if>
+ <xsl:if test="@align">
+ <xsl:attribute name="align">
+ <xsl:value-of select="@align"/>
+ </xsl:attribute>
+ </xsl:if>
+ <xsl:if test="@valign">
+ <xsl:attribute name="valign">
+ <xsl:value-of select="@valign"/>
+ </xsl:attribute>
+ </xsl:if>
+ <xsl:copy-of select="$img"/>
+ </td>
+ </tr>
+ </table>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:copy-of select="$img"/>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<xsl:template name="process.image.attributes">
+ <xsl:param name="alt"/>
+ <xsl:param name="html.width"/>
+ <xsl:param name="html.depth"/>
+ <xsl:param name="longdesc"/>
+ <xsl:param name="scale"/>
+ <xsl:param name="scalefit"/>
+ <xsl:param name="scaled.contentdepth"/>
+ <xsl:param name="scaled.contentwidth"/>
+ <xsl:param name="viewport"/>
+
+ <xsl:choose>
+ <xsl:when test="@contentwidth or @contentdepth">
+ <!-- ignore @width/@depth, @scale, and @scalefit if specified -->
+ <xsl:if test="@contentwidth">
+ <xsl:attribute name="width">
+ <xsl:value-of select="$scaled.contentwidth"/>
+ </xsl:attribute>
+ </xsl:if>
+ <xsl:if test="@contentdepth">
+ <xsl:attribute name="height">
+ <xsl:value-of select="$scaled.contentdepth"/>
+ </xsl:attribute>
+ </xsl:if>
+ </xsl:when>
+
+ <xsl:when test="number($scale) != 1.0">
+ <!-- scaling is always uniform, so we only have to specify one dimension -->
+ <!-- ignore @scalefit if specified -->
+ <xsl:attribute name="width">
+ <xsl:value-of select="$scaled.contentwidth"/>
+ </xsl:attribute>
+ </xsl:when>
+
+ <xsl:when test="$scalefit != 0">
+ <xsl:choose>
+ <xsl:when test="contains($html.width, '%')">
+ <xsl:choose>
+ <xsl:when test="$viewport != 0">
+ <!-- The *viewport* will be scaled, so use 100% here! -->
+ <xsl:attribute name="width">
+ <xsl:value-of select="'100%'"/>
+ </xsl:attribute>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:attribute name="width">
+ <xsl:value-of select="$html.width"/>
+ </xsl:attribute>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+
+ <xsl:when test="contains($html.depth, '%')">
+ <!-- HTML doesn't deal with this case very well...do nothing -->
+ </xsl:when>
+
+ <xsl:when test="$scaled.contentwidth != '' and $html.width != ''
+ and $scaled.contentdepth != '' and $html.depth != ''">
+ <!-- scalefit should not be anamorphic; figure out which direction -->
+ <!-- has the limiting scale factor and scale in that direction -->
+ <xsl:choose>
+ <xsl:when test="$html.width div $scaled.contentwidth &gt;
+ $html.depth div $scaled.contentdepth">
+ <xsl:attribute name="height">
+ <xsl:value-of select="$html.depth"/>
+ </xsl:attribute>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:attribute name="width">
+ <xsl:value-of select="$html.width"/>
+ </xsl:attribute>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+
+ <xsl:when test="$scaled.contentwidth != '' and $html.width != ''">
+ <xsl:attribute name="width">
+ <xsl:value-of select="$html.width"/>
+ </xsl:attribute>
+ </xsl:when>
+
+ <xsl:when test="$scaled.contentdepth != '' and $html.depth != ''">
+ <xsl:attribute name="height">
+ <xsl:value-of select="$html.depth"/>
+ </xsl:attribute>
+ </xsl:when>
+ </xsl:choose>
+ </xsl:when>
+ </xsl:choose>
+
+ <xsl:if test="$alt != ''">
+ <xsl:attribute name="alt">
+ <xsl:value-of select="$alt"/>
+ </xsl:attribute>
+ </xsl:if>
+
+ <xsl:if test="$longdesc != ''">
+ <xsl:attribute name="longdesc">
+ <xsl:value-of select="$longdesc"/>
+ </xsl:attribute>
+ </xsl:if>
+
+ <xsl:if test="@align and $viewport = 0">
+ <xsl:attribute name="align">
+ <xsl:choose>
+ <xsl:when test="@align = 'center'">middle</xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="@align"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:attribute>
+ </xsl:if>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="graphic">
+ <xsl:choose>
+ <xsl:when test="parent::inlineequation">
+ <xsl:call-template name="anchor"/>
+ <xsl:call-template name="process.image"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <div>
+ <xsl:if test="@align">
+ <xsl:attribute name="align">
+ <xsl:value-of select="@align"/>
+ </xsl:attribute>
+ </xsl:if>
+ <xsl:call-template name="anchor"/>
+ <xsl:call-template name="process.image"/>
+ </div>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<xsl:template match="inlinegraphic">
+ <xsl:variable name="filename">
+ <xsl:choose>
+ <xsl:when test="@entityref">
+ <xsl:value-of select="unparsed-entity-uri(@entityref)"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:apply-templates select="@fileref"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:if test="@id">
+ <a name="{@id}"/>
+ </xsl:if>
+
+ <xsl:choose>
+ <xsl:when test="@format='linespecific'">
+ <xsl:choose>
+ <xsl:when test="$use.extensions != '0'
+ and $textinsert.extension != '0'">
+ <xsl:choose>
+ <xsl:when test="element-available('stext:insertfile')">
+ <stext:insertfile href="{$filename}" encoding="{$textdata.default.encoding}"/>
+ </xsl:when>
+ <xsl:when test="element-available('xtext:insertfile')">
+ <xtext:insertfile href="{$filename}"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:message terminate="yes">
+ <xsl:text>No insertfile extension available.</xsl:text>
+ </xsl:message>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <a xlink:type="simple" xlink:show="embed" xlink:actuate="onLoad"
+ href="{$filename}"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="process.image"/>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="mediaobject|mediaobjectco">
+
+ <xsl:variable name="olist" select="imageobject|imageobjectco
+ |videoobject|audioobject
+ |textobject"/>
+
+ <xsl:variable name="object.index">
+ <xsl:call-template name="select.mediaobject.index">
+ <xsl:with-param name="olist" select="$olist"/>
+ <xsl:with-param name="count" select="1"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="object" select="$olist[position() = $object.index]"/>
+
+ <xsl:variable name="align">
+ <xsl:value-of select="$object/imagedata[@align][1]/@align"/>
+ </xsl:variable>
+
+ <div class="{name(.)}">
+ <xsl:if test="$align != '' ">
+ <xsl:attribute name="align">
+ <xsl:value-of select="$align"/>
+ </xsl:attribute>
+ </xsl:if>
+ <xsl:if test="@id">
+ <a name="{@id}"/>
+ </xsl:if>
+
+ <xsl:apply-templates select="$object"/>
+ <xsl:apply-templates select="caption"/>
+ </div>
+</xsl:template>
+
+<xsl:template match="inlinemediaobject">
+ <span class="{name(.)}">
+ <xsl:if test="@id">
+ <a name="{@id}"/>
+ </xsl:if>
+ <xsl:call-template name="select.mediaobject"/>
+ </span>
+</xsl:template>
+
+<xsl:template match="programlisting/inlinemediaobject
+ |screen/inlinemediaobject" priority="2">
+ <!-- the additional span causes problems in some cases -->
+ <xsl:call-template name="select.mediaobject"/>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="imageobjectco">
+ <xsl:if test="@id">
+ <a name="{@id}"/>
+ </xsl:if>
+ <xsl:apply-templates select="imageobject"/>
+ <xsl:apply-templates select="calloutlist"/>
+</xsl:template>
+
+<xsl:template match="imageobject">
+ <xsl:choose>
+ <xsl:when xmlns:svg="http://www.w3.org/2000/svg"
+ test="svg:*">
+ <xsl:apply-templates/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:apply-templates select="imagedata"/>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<xsl:template match="imagedata">
+ <xsl:variable name="filename">
+ <xsl:call-template name="mediaobject.filename">
+ <xsl:with-param name="object" select=".."/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:choose>
+ <xsl:when test="@format='linespecific'">
+ <xsl:choose>
+ <xsl:when test="$use.extensions != '0'
+ and $textinsert.extension != '0'">
+ <xsl:choose>
+ <xsl:when test="element-available('stext:insertfile')">
+ <stext:insertfile href="{$filename}" encoding="{$textdata.default.encoding}"/>
+ </xsl:when>
+ <xsl:when test="element-available('xtext:insertfile')">
+ <xtext:insertfile href="{$filename}"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:message terminate="yes">
+ <xsl:text>No insertfile extension available.</xsl:text>
+ </xsl:message>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <a xlink:type="simple" xlink:show="embed" xlink:actuate="onLoad"
+ href="{$filename}"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:variable name="longdesc.uri">
+ <xsl:call-template name="longdesc.uri">
+ <xsl:with-param name="mediaobject"
+ select="ancestor::imageobject/parent::*"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="phrases"
+ select="ancestor::mediaobject/textobject[phrase]
+ |ancestor::inlinemediaobject/textobject[phrase]
+ |ancestor::mediaobjectco/textobject[phrase]"/>
+
+ <xsl:call-template name="process.image">
+ <xsl:with-param name="alt">
+ <xsl:apply-templates select="$phrases[not(@role) or @role!='tex'][1]"/>
+ </xsl:with-param>
+ <xsl:with-param name="longdesc">
+ <xsl:call-template name="write.longdesc">
+ <xsl:with-param name="mediaobject"
+ select="ancestor::imageobject/parent::*"/>
+ </xsl:call-template>
+ </xsl:with-param>
+ </xsl:call-template>
+
+ <xsl:if test="$html.longdesc != 0 and $html.longdesc.link != 0
+ and ancestor::imageobject/parent::*/textobject[not(phrase)]">
+ <xsl:call-template name="longdesc.link">
+ <xsl:with-param name="longdesc.uri" select="$longdesc.uri"/>
+ </xsl:call-template>
+ </xsl:if>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template name="longdesc.uri">
+ <xsl:param name="mediaobject" select="."/>
+
+ <xsl:if test="$html.longdesc">
+ <xsl:if test="$mediaobject/textobject[not(phrase)]">
+ <xsl:variable name="image-id">
+ <xsl:call-template name="object.id">
+ <xsl:with-param name="object" select="$mediaobject"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:variable name="dbhtml.dir">
+ <xsl:call-template name="dbhtml-dir"/>
+ </xsl:variable>
+ <xsl:variable name="filename">
+ <xsl:call-template name="make-relative-filename">
+ <xsl:with-param name="base.dir">
+ <xsl:choose>
+ <xsl:when test="$dbhtml.dir != ''">
+ <xsl:value-of select="$dbhtml.dir"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$base.dir"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:with-param>
+ <xsl:with-param name="base.name"
+ select="concat('ld-',$image-id,$html.ext)"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:value-of select="$filename"/>
+ </xsl:if>
+ </xsl:if>
+</xsl:template>
+
+<xsl:template name="write.longdesc">
+ <xsl:param name="mediaobject" select="."/>
+ <xsl:if test="$html.longdesc != 0 and $mediaobject/textobject[not(phrase)]">
+ <xsl:variable name="filename">
+ <xsl:call-template name="longdesc.uri">
+ <xsl:with-param name="mediaobject" select="$mediaobject"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:value-of select="$filename"/>
+
+ <xsl:call-template name="write.chunk">
+ <xsl:with-param name="filename" select="$filename"/>
+ <xsl:with-param name="quiet" select="$chunk.quietly"/>
+ <xsl:with-param name="content">
+ <xsl:call-template name="user.preroot"/>
+ <html>
+ <head>
+ <xsl:call-template name="system.head.content"/>
+ <xsl:call-template name="head.content">
+ <xsl:with-param name="title" select="'Long Description'"/>
+ </xsl:call-template>
+ <xsl:call-template name="user.head.content"/>
+ </head>
+ <body>
+ <xsl:call-template name="body.attributes"/>
+ <xsl:for-each select="$mediaobject/textobject[not(phrase)]">
+ <xsl:apply-templates select="./*"/>
+ </xsl:for-each>
+ </body>
+ </html>
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:if>
+</xsl:template>
+
+<xsl:template name="longdesc.link">
+ <xsl:param name="longdesc.uri" select="''"/>
+
+ <xsl:variable name="this.uri">
+ <xsl:call-template name="make-relative-filename">
+ <xsl:with-param name="base.dir" select="$base.dir"/>
+ <xsl:with-param name="base.name">
+ <xsl:call-template name="href.target.uri"/>
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="href.to">
+ <xsl:call-template name="trim.common.uri.paths">
+ <xsl:with-param name="uriA" select="$longdesc.uri"/>
+ <xsl:with-param name="uriB" select="$this.uri"/>
+ <xsl:with-param name="return" select="'A'"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <div class="longdesc-link" align="right">
+ <br clear="all"/>
+ <span class="longdesc-link">
+ <xsl:text>[</xsl:text>
+ <a href="{$href.to}" target="longdesc">D</a>
+ <xsl:text>]</xsl:text>
+ </span>
+ </div>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="videoobject">
+ <xsl:apply-templates select="videodata"/>
+</xsl:template>
+
+<xsl:template match="videodata">
+ <xsl:call-template name="process.image">
+ <xsl:with-param name="tag" select="'embed'"/>
+ <xsl:with-param name="alt">
+ <xsl:apply-templates select="(../../textobject/phrase)[1]"/>
+ </xsl:with-param>
+ </xsl:call-template>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="audioobject">
+ <xsl:apply-templates select="audiodata"/>
+</xsl:template>
+
+<xsl:template match="audiodata">
+ <xsl:call-template name="process.image">
+ <xsl:with-param name="tag" select="'embed'"/>
+ <xsl:with-param name="alt">
+ <xsl:apply-templates select="(../../textobject/phrase)[1]"/>
+ </xsl:with-param>
+ </xsl:call-template>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="textobject">
+ <xsl:apply-templates/>
+</xsl:template>
+
+<xsl:template match="textdata">
+ <xsl:variable name="filename">
+ <xsl:choose>
+ <xsl:when test="@entityref">
+ <xsl:value-of select="unparsed-entity-uri(@entityref)"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:apply-templates select="@fileref"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="encoding">
+ <xsl:choose>
+ <xsl:when test="@encoding">
+ <xsl:value-of select="@encoding"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$textdata.default.encoding"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:choose>
+ <xsl:when test="$use.extensions != '0'
+ and $textinsert.extension != '0'">
+ <xsl:choose>
+ <xsl:when test="element-available('stext:insertfile')">
+ <stext:insertfile href="{$filename}" encoding="{$encoding}"/>
+ </xsl:when>
+ <xsl:when test="element-available('xtext:insertfile')">
+ <xtext:insertfile href="{$filename}"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:message terminate="yes">
+ <xsl:text>No insertfile extension available.</xsl:text>
+ </xsl:message>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <a xlink:type="simple" xlink:show="embed" xlink:actuate="onLoad"
+ href="{$filename}"/>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<!-- ==================================================================== -->
+
+<xsl:template match="caption">
+ <div class="{name(.)}">
+ <xsl:apply-templates/>
+ </div>
+</xsl:template>
+
+<!-- ==================================================================== -->
+<!-- "Support" for SVG -->
+
+<xsl:template match="svg:*" xmlns:svg="http://www.w3.org/2000/svg">
+ <xsl:copy>
+ <xsl:copy-of select="@*"/>
+ <xsl:apply-templates/>
+ </xsl:copy>
+</xsl:template>
+
+<!-- Resolve xml:base attributes -->
+<xsl:template match="@fileref">
+ <!-- need a check for absolute urls -->
+ <xsl:choose>
+ <xsl:when test="contains(., ':')">
+ <!-- it has a uri scheme so it is an absolute uri -->
+ <xsl:value-of select="."/>
+ </xsl:when>
+ <xsl:otherwise>
+ <!-- its a relative uri -->
+ <xsl:call-template name="relative-uri">
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+</xsl:stylesheet>