D-Net

<?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="xalan://com.nwalsh.xalan.ImageIntrinsics"

                xmlns:xtext="xalan://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: graphics.xsl 8421 2009-05-04 07:49:49Z bobstayton $

     ********************************************************************

     This file is part of the XSL DocBook Stylesheet distribution.

     See ../README or http://docbook.sf.net/release/xsl/current/ 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>

    <xsl:apply-templates select="." mode="common.html.attributes"/>

    <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="output_filename">

    <xsl:choose>

      <xsl:when test="@entityref">

        <xsl:value-of select="$filename"/>

      </xsl:when>

      <!--

        Moved test for $keep.relative.image.uris to template below:

            <xsl:template match="@fileref">

      -->

      <xsl:otherwise>

        <xsl:value-of select="$filename"/>

      </xsl:otherwise>

    </xsl:choose>

  </xsl:variable>

  <xsl:variable name="img.src.path.pi">

    <xsl:call-template name="pi.dbhtml_img.src.path">

      <xsl:with-param name="node" select=".."/>

    </xsl:call-template>

  </xsl:variable>

  <xsl:variable name="filename.for.graphicsize">

    <xsl:choose>

      <xsl:when test="$img.src.path.pi != ''">

        <xsl:value-of select="concat($img.src.path.pi, $filename)"/>

      </xsl:when>

      <xsl:when test="$img.src.path != '' and

                      $graphicsize.use.img.src.path != 0 and

                      $tag = 'img' and

                      not(starts-with($filename, '/')) and

                      not(contains($filename, '://'))">

        <xsl:value-of select="concat($img.src.path, $filename)"/>

      </xsl:when>

      <xsl:otherwise>

        <xsl:value-of select="$filename"/>

      </xsl:otherwise>

    </xsl:choose>

  </xsl:variable>

  <xsl:variable name="realintrinsicwidth">

    <!-- 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.for.graphicsize),

                                                $nominal.image.width)"/>

          </xsl:when>

          <xsl:when test="function-available('ximg:getWidth')">

            <xsl:value-of select="ximg:getWidth(ximg:new($filename.for.graphicsize),

                                                $nominal.image.width)"/>

          </xsl:when>

          <xsl:otherwise>

           <xsl:value-of select="0"/>

          </xsl:otherwise>

        </xsl:choose>

      </xsl:when>

      <xsl:otherwise>

        <xsl:value-of select="0"/>

      </xsl:otherwise>

    </xsl:choose>

  </xsl:variable>

  <xsl:variable name="intrinsicwidth">

    <xsl:choose>

      <xsl:when test="$realintrinsicwidth = 0">

       <xsl:value-of select="$nominal.image.width"/>

      </xsl:when>

      <xsl:otherwise>

       <xsl:value-of select="$realintrinsicwidth"/>

      </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.for.graphicsize),

                                                $nominal.image.depth)"/>

          </xsl:when>

          <xsl:when test="function-available('ximg:getDepth')">

            <xsl:value-of select="ximg:getDepth(ximg:new($filename.for.graphicsize),

                                                $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="scaled"

              select="@width|@depth|@contentwidth|@contentdepth

                        |@scale|@scalefit"/>

  <xsl:variable name="img">

    <xsl:choose>

      <xsl:when test="@format = 'SVG'">

        <object type="image/svg+xml">

	  <xsl:attribute name="data">

	    <xsl:choose>

	      <xsl:when test="$img.src.path != '' and

                           $tag = 'img' and

			   not(starts-with($output_filename, '/')) and

			   not(contains($output_filename, '://'))">

		<xsl:value-of select="$img.src.path"/>

	      </xsl:when>

           </xsl:choose>

	   <xsl:value-of select="$output_filename"/>

	  </xsl:attribute>

	  <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 type="image/svg+xml">

	      <xsl:attribute name="src">

		<xsl:choose>

                  <xsl:when test="$img.src.path != '' and

				  $tag = 'img' and

				  not(starts-with($output_filename, '/')) and

				  not(contains($output_filename, '://'))">

		    <xsl:value-of select="$img.src.path"/>

                  </xsl:when>

		</xsl:choose>

		<xsl:value-of select="$output_filename"/>

              </xsl:attribute>

              <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:if test="$tag = 'img' and ../../self::imageobjectco">

           <xsl:variable name="mapname">

             <xsl:call-template name="object.id">

               <xsl:with-param name="object" select="../../areaspec"/>

             </xsl:call-template>

           </xsl:variable>

           <xsl:choose>

             <xsl:when test="$scaled">

              <!-- It might be possible to handle some scaling; needs -->

              <!-- more investigation -->

              <xsl:message>

                <xsl:text>Warning: imagemaps not supported </xsl:text>

                <xsl:text>on scaled images</xsl:text>

              </xsl:message>

             </xsl:when>

             <xsl:otherwise>

              <xsl:attribute name="border">0</xsl:attribute>

              <xsl:attribute name="usemap">

                <xsl:value-of select="concat('#', $mapname)"/>

              </xsl:attribute>

             </xsl:otherwise>

           </xsl:choose>

         </xsl:if>

          <xsl:attribute name="src">

           <xsl:choose>

             <xsl:when test="$img.src.path != '' and

                           $tag = 'img' and

                             not(starts-with($output_filename, '/')) and

                           not(contains($output_filename, '://'))">

               <xsl:value-of select="$img.src.path"/>

             </xsl:when>

           </xsl:choose>

            <xsl:value-of select="$output_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="pi.dbhtml_background-color">

      <xsl:with-param name="node" select=".."/>

    </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:if test="$tag = 'img' and ../../self::imageobjectco and not($scaled)">

    <xsl:variable name="mapname">

      <xsl:call-template name="object.id">

        <xsl:with-param name="object" select="../../areaspec"/>

      </xsl:call-template>

    </xsl:variable>

    <map name="{$mapname}">

      <xsl:for-each select="../../areaspec//area">

        <xsl:variable name="units">

          <xsl:choose>

            <xsl:when test="@units = 'other' and @otherunits">

              <xsl:value-of select="@otherunits"/>

            </xsl:when>

            <xsl:when test="@units">

              <xsl:value-of select="@units"/>

            </xsl:when>

            <!-- areaspec|areaset/area -->

            <xsl:when test="../@units = 'other' and ../@otherunits">

              <xsl:value-of select="../@otherunits"/>

            </xsl:when>

            <xsl:when test="../@units">

              <xsl:value-of select="../@units"/>

            </xsl:when>

            <!-- areaspec/areaset/area -->

            <xsl:when test="../../@units = 'other' and ../../@otherunits">

              <xsl:value-of select="../@otherunits"/>

            </xsl:when>

            <xsl:when test="../../@units">

              <xsl:value-of select="../../@units"/>

            </xsl:when>

            <xsl:otherwise>calspair</xsl:otherwise>

          </xsl:choose>

        </xsl:variable>

        <xsl:choose>

          <xsl:when test="$units = 'calspair' or

                          $units = 'imagemap'">

            <xsl:variable name="coords" select="normalize-space(@coords)"/>

            <area shape="rect">

              <xsl:variable name="linkends">

                <xsl:choose>

                  <xsl:when test="@linkends">

                    <xsl:value-of select="normalize-space(@linkends)"/>

                  </xsl:when>

                  <xsl:otherwise>

                    <xsl:value-of select="normalize-space(../@linkends)"/>

                  </xsl:otherwise>

                </xsl:choose>

              </xsl:variable>

              <xsl:variable name="href">

                <xsl:choose>

                  <xsl:when test="@xlink:href">

                    <xsl:value-of select="@xlink:href"/>

                  </xsl:when>

                  <xsl:otherwise>

                    <xsl:value-of select="../@xlink:href"/>

                  </xsl:otherwise>

                </xsl:choose>

              </xsl:variable>

              <xsl:choose>

                <xsl:when test="$linkends != ''">

                  <xsl:variable name="linkend">

                    <xsl:choose>

                      <xsl:when test="contains($linkends, ' ')">

                        <xsl:value-of select="substring-before($linkends, ' ')"/>

                      </xsl:when>

                      <xsl:otherwise>

                        <xsl:value-of select="$linkends"/>

                      </xsl:otherwise>

                    </xsl:choose>

                  </xsl:variable>

                  <xsl:variable name="target" select="key('id', $linkend)[1]"/>

                  <xsl:if test="$target">

                    <xsl:attribute name="href">

                      <xsl:call-template name="href.target">

                        <xsl:with-param name="object" select="$target"/>

                      </xsl:call-template>

                    </xsl:attribute>

                  </xsl:if>

                </xsl:when>

                <xsl:when test="$href != ''">

                  <xsl:attribute name="href">

                    <xsl:value-of select="$href"/>

                  </xsl:attribute>

                </xsl:when>

              </xsl:choose>

              <xsl:if test="alt">

                <xsl:attribute name="alt">

                  <xsl:value-of select="alt[1]"/>

                </xsl:attribute>

              </xsl:if>

              <xsl:attribute name="coords">

                <xsl:choose>

                  <xsl:when test="$units = 'calspair'">

                    <xsl:variable name="p1"

                                select="substring-before($coords, ' ')"/>

                    <xsl:variable name="p2"

                                select="substring-after($coords, ' ')"/>

                    <xsl:variable name="x1" select="substring-before($p1,',')"/>

                    <xsl:variable name="y1" select="substring-after($p1,',')"/>

                    <xsl:variable name="x2" select="substring-before($p2,',')"/>

                    <xsl:variable name="y2" select="substring-after($p2,',')"/>

                    <xsl:variable name="x1p" select="$x1 div 100.0"/>

                    <xsl:variable name="y1p" select="$y1 div 100.0"/>

                    <xsl:variable name="x2p" select="$x2 div 100.0"/>

                    <xsl:variable name="y2p" select="$y2 div 100.0"/>

         <!--

                    <xsl:message>

                      <xsl:text>units: </xsl:text>

                      <xsl:value-of select="$units"/>

                      <xsl:text> </xsl:text>

                      <xsl:value-of select="$x1p"/><xsl:text>, </xsl:text>

                      <xsl:value-of select="$y1p"/><xsl:text>, </xsl:text>

                      <xsl:value-of select="$x2p"/><xsl:text>, </xsl:text>

                      <xsl:value-of select="$y2p"/><xsl:text>, </xsl:text>

                    </xsl:message>

                    <xsl:message>

                      <xsl:text>      </xsl:text>

                      <xsl:value-of select="$intrinsicwidth"/>

                      <xsl:text>, </xsl:text>

                      <xsl:value-of select="$intrinsicdepth"/>

                    </xsl:message>

                    <xsl:message>

                      <xsl:text>      </xsl:text>

                      <xsl:value-of select="$units"/>

                      <xsl:text> </xsl:text>

                      <xsl:value-of 

                            select="round($x1p * $intrinsicwidth div 100.0)"/>

                      <xsl:text>,</xsl:text>

                      <xsl:value-of select="round($intrinsicdepth

                                       - ($y2p * $intrinsicdepth div 100.0))"/>

                      <xsl:text>,</xsl:text>

                      <xsl:value-of select="round($x2p * 

                                            $intrinsicwidth div 100.0)"/>

                      <xsl:text>,</xsl:text>

                      <xsl:value-of select="round($intrinsicdepth

                                       - ($y1p * $intrinsicdepth div 100.0))"/>

                    </xsl:message>

         -->

                    <xsl:value-of 

                             select="round($x1p * $intrinsicwidth div 100.0)"/>

                    <xsl:text>,</xsl:text>

                    <xsl:value-of select="round($intrinsicdepth

                                        - ($y2p * $intrinsicdepth div 100.0))"/>

                    <xsl:text>,</xsl:text>

                    <xsl:value-of 

                             select="round($x2p * $intrinsicwidth div 100.0)"/>

                    <xsl:text>,</xsl:text>

                    <xsl:value-of select="round($intrinsicdepth

                                      - ($y1p * $intrinsicdepth div 100.0))"/>

                  </xsl:when>

                  <xsl:otherwise>

                    <xsl:copy-of select="$coords"/>

                  </xsl:otherwise>

                </xsl:choose>

              </xsl:attribute>

            </area>

          </xsl:when>

          <xsl:otherwise>

            <xsl:message>

              <xsl:text>Warning: only calspair or </xsl:text>

              <xsl:text>otherunits='imagemap' supported </xsl:text>

              <xsl:text>in imageobjectco</xsl:text>

            </xsl:message>

          </xsl:otherwise>

        </xsl:choose>

      </xsl:for-each>

    </map>

  </xsl:if>

</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 and $scaled.contentwidth != ''">

        <xsl:attribute name="width">

          <xsl:value-of select="$scaled.contentwidth"/>

        </xsl:attribute>

      </xsl:if>

      <xsl:if test="@contentdepth and $scaled.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="normalize-space($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:call-template name="anchor"/>

  <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>

	  <xsl:message terminate="yes">

	    <xsl:text>Cannot insert </xsl:text><xsl:value-of select="$filename"/>

	    <xsl:text>. Check use.extensions and textinsert.extension parameters.</xsl:text> 

	  </xsl:message>

	</xsl:otherwise>

      </xsl:choose>