doc/xslt/fo/callout.xsl

   1 <?xml version='1.0'?>
   2 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
   3                 xmlns:fo="http://www.w3.org/1999/XSL/Format"
   4                 xmlns:sverb="http://nwalsh.com/xslt/ext/com.nwalsh.saxon.Verbatim"
   5                 xmlns:xverb="com.nwalsh.xalan.Verbatim"
   6                 xmlns:lxslt="http://xml.apache.org/xslt"
   7                 exclude-result-prefixes="sverb xverb lxslt"
   8                 version='1.0'>
   9
  10 <!-- ********************************************************************
  11      $Id: callout.xsl 6910 2007-06-28 23:23:30Z xmldoc $
  12      ********************************************************************
  13
  14      This file is part of the XSL DocBook Stylesheet distribution.
  15      See ../README or http://docbook.sf.net/release/xsl/current/ for
  16      copyright and other information.
  17
  18      ******************************************************************** -->
  19
  20 <lxslt:component prefix="xverb"
  21                  functions="insertCallouts"/>
  22
  23 <xsl:template match="programlistingco|screenco">
  24   <xsl:variable name="verbatim" select="programlisting|screen"/>
  25   <xsl:variable name="vendor" select="system-property('xsl:vendor')"/>
  26
  27   <xsl:choose>
  28     <xsl:when test="$use.extensions != '0'
  29                     and $callouts.extension != '0'">
  30       <xsl:variable name="rtf">
  31         <xsl:apply-templates select="$verbatim">
  32           <xsl:with-param name="suppress-numbers" select="'1'"/>
  33         </xsl:apply-templates>
  34       </xsl:variable>
  35
  36       <xsl:variable name="rtf-with-callouts">
  37         <xsl:choose>
  38           <xsl:when test="contains($vendor, 'SAXON ')">
  39             <xsl:copy-of select="sverb:insertCallouts(areaspec,$rtf)"/>
  40           </xsl:when>
  41           <xsl:when test="contains($vendor, 'Apache Software Foundation')">
  42             <xsl:copy-of select="xverb:insertCallouts(areaspec,$rtf)"/>
  43           </xsl:when>
  44           <xsl:otherwise>
  45             <xsl:message terminate="yes">
  46               <xsl:text>Don't know how to do callouts with </xsl:text>
  47               <xsl:value-of select="$vendor"/>
  48             </xsl:message>
  49           </xsl:otherwise>
  50         </xsl:choose>
  51       </xsl:variable>
  52
  53       <xsl:choose>
  54         <xsl:when test="$verbatim/@linenumbering = 'numbered'
  55                         and $linenumbering.extension != '0'">
  56           <xsl:call-template name="number.rtf.lines">
  57             <xsl:with-param name="rtf" select="$rtf-with-callouts"/>
  58             <xsl:with-param name="pi.context"
  59                             select="programlisting|screen"/>
  60           </xsl:call-template>
  61           <xsl:apply-templates select="calloutlist"/>
  62         </xsl:when>
  63         <xsl:otherwise>
  64           <xsl:copy-of select="$rtf-with-callouts"/>
  65           <xsl:apply-templates select="calloutlist"/>
  66         </xsl:otherwise>
  67       </xsl:choose>
  68     </xsl:when>
  69     <xsl:otherwise>
  70       <xsl:apply-templates/>
  71     </xsl:otherwise>
  72   </xsl:choose>
  73 </xsl:template>
  74
  75 <xsl:template match="areaspec|areaset|area">
  76 </xsl:template>
  77
  78 <xsl:template match="areaset" mode="conumber">
  79   <xsl:number count="area|areaset" format="1"/>
  80 </xsl:template>
  81
  82 <xsl:template match="area" mode="conumber">
  83   <xsl:number count="area|areaset" format="1"/>
  84 </xsl:template>
  85
  86 <xsl:template match="co">
  87   <fo:inline>
  88     <xsl:call-template name="anchor"/>
  89     <xsl:apply-templates select="." mode="callout-bug"/>
  90   </fo:inline>
  91 </xsl:template>
  92
  93 <xsl:template match="coref">
  94   <!-- tricky; this relies on the fact that we can process the "co" that's -->
  95   <!-- "over there" as if it were "right here" -->
  96
  97   <xsl:variable name="co" select="key('id', @linkend)"/>
  98   <xsl:choose>
  99     <xsl:when test="not($co)">
 100       <xsl:message>
 101         <xsl:text>Error: coref link is broken: </xsl:text>
 102         <xsl:value-of select="@linkend"/>
 103       </xsl:message>
 104     </xsl:when>
 105     <xsl:when test="local-name($co) != 'co'">
 106       <xsl:message>
 107         <xsl:text>Error: coref doesn't point to a co: </xsl:text>
 108         <xsl:value-of select="@linkend"/>
 109       </xsl:message>
 110     </xsl:when>
 111     <xsl:otherwise>
 112       <fo:inline>
 113         <xsl:call-template name="anchor"/>
 114         <xsl:apply-templates select="$co" mode="callout-bug"/>
 115       </fo:inline>
 116     </xsl:otherwise>
 117   </xsl:choose>
 118 </xsl:template>
 119
 120 <xsl:template match="co" mode="callout-bug">
 121   <xsl:call-template name="callout-bug">
 122     <xsl:with-param name="conum">
 123       <xsl:number count="co"
 124                   level="any"
 125                   from="programlisting|screen|literallayout|synopsis"
 126                   format="1"/>
 127     </xsl:with-param>
 128   </xsl:call-template>
 129 </xsl:template>
 130
 131 <xsl:template name="callout-bug">
 132   <xsl:param name="conum" select='1'/>
 133
 134   <xsl:choose>
 135     <!-- Draw callouts as images -->
 136     <xsl:when test="$callout.graphics != '0'
 137                     and $conum &lt;= $callout.graphics.number.limit">
 138       <xsl:variable name="filename"
 139                     select="concat($callout.graphics.path, $conum,
 140                                    $callout.graphics.extension)"/>
 141
 142       <fo:external-graphic content-width="{$callout.icon.size}"
 143                            width="{$callout.icon.size}">
 144         <xsl:attribute name="src">
 145           <xsl:choose>
 146             <xsl:when test="$passivetex.extensions != 0
 147                             or $fop.extensions != 0
 148                             or $arbortext.extensions != 0">
 149               <xsl:value-of select="$filename"/>
 150             </xsl:when>
 151             <xsl:otherwise>
 152               <xsl:text>url(</xsl:text>
 153               <xsl:value-of select="$filename"/>
 154               <xsl:text>)</xsl:text>
 155             </xsl:otherwise>
 156           </xsl:choose>
 157         </xsl:attribute>
 158       </fo:external-graphic>
 159     </xsl:when>
 160
 161     <xsl:when test="$callout.unicode != 0
 162                     and $conum &lt;= $callout.unicode.number.limit">
 163       <xsl:variable name="comarkup">
 164         <xsl:choose>
 165           <xsl:when test="$callout.unicode.start.character = 10102">
 166             <xsl:choose>
 167               <xsl:when test="$conum = 1">&#10102;</xsl:when>
 168               <xsl:when test="$conum = 2">&#10103;</xsl:when>
 169               <xsl:when test="$conum = 3">&#10104;</xsl:when>
 170               <xsl:when test="$conum = 4">&#10105;</xsl:when>
 171               <xsl:when test="$conum = 5">&#10106;</xsl:when>
 172               <xsl:when test="$conum = 6">&#10107;</xsl:when>
 173               <xsl:when test="$conum = 7">&#10108;</xsl:when>
 174               <xsl:when test="$conum = 8">&#10109;</xsl:when>
 175               <xsl:when test="$conum = 9">&#10110;</xsl:when>
 176               <xsl:when test="$conum = 10">&#10111;</xsl:when>
 177             </xsl:choose>
 178           </xsl:when>
 179           <xsl:otherwise>
 180             <xsl:message>
 181               <xsl:text>Don't know how to generate Unicode callouts </xsl:text>
 182               <xsl:text>when $callout.unicode.start.character is </xsl:text>
 183               <xsl:value-of select="$callout.unicode.start.character"/>
 184             </xsl:message>
 185             <fo:inline background-color="#404040"
 186                        color="white"
 187                        padding-top="0.1em"
 188                        padding-bottom="0.1em"
 189                        padding-start="0.2em"
 190                        padding-end="0.2em"
 191                        baseline-shift="0.1em"
 192                        font-family="{$body.fontset}"
 193                        font-weight="bold"
 194                        font-size="75%">
 195               <xsl:value-of select="$conum"/>
 196             </fo:inline>
 197           </xsl:otherwise>
 198         </xsl:choose>
 199       </xsl:variable>
 200
 201       <xsl:choose>
 202         <xsl:when test="$callout.unicode.font != ''">
 203           <fo:inline font-family="{$callout.unicode.font}">
 204             <xsl:copy-of select="$comarkup"/>
 205           </fo:inline>
 206         </xsl:when>
 207         <xsl:otherwise>
 208           <xsl:copy-of select="$comarkup"/>
 209         </xsl:otherwise>
 210       </xsl:choose>
 211     </xsl:when>
 212
 213     <!-- Most safe: draw a dark gray square with a white number inside -->
 214     <xsl:otherwise>
 215       <fo:inline background-color="#404040"
 216                  color="white"
 217                  padding-top="0.1em"
 218                  padding-bottom="0.1em"
 219                  padding-start="0.2em"
 220                  padding-end="0.2em"
 221                  baseline-shift="0.1em"
 222                  font-family="{$body.fontset}"
 223                  font-weight="bold"
 224                  font-size="75%">
 225         <xsl:value-of select="$conum"/>
 226       </fo:inline>
 227     </xsl:otherwise>
 228   </xsl:choose>
 229 </xsl:template>
 230
 231 </xsl:stylesheet>