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     $Id$
12     ********************************************************************
13
14     This file is part of the XSL DocBook Stylesheet distribution.
15     See /README or http://nwalsh.com/docbook/xsl/ for copyright
16     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="$rtf-with-callouts"/>
65          <xsl:apply-templates select="calloutlist"/>
66        </xsl:otherwise>
67      </xsl:choose>
68    </xsl:when>
69    <xsl:otherwise>
70      <xsl:apply-templates/>
71    </xsl:otherwise>
72  </xsl:choose>
73</xsl:template>
74
75<xsl:template match="areaspec|areaset|area">
76</xsl:template>
77
78<xsl:template match="areaset" mode="conumber">
79  <xsl:number count="area|areaset" format="1"/>
80</xsl:template>
81
82<xsl:template match="area" mode="conumber">
83  <xsl:number count="area|areaset" format="1"/>
84</xsl:template>
85
86<xsl:template match="co">
87  <fo:inline id="{@id}">
88    <xsl:apply-templates select="." mode="callout-bug"/>
89  </fo:inline>
90</xsl:template>
91
92<xsl:template match="co" mode="callout-bug">
93  <xsl:call-template name="callout-bug">
94    <xsl:with-param name="conum">
95      <xsl:number count="co" format="1"/>
96    </xsl:with-param>
97  </xsl:call-template>
98</xsl:template>
99
100<xsl:template name="callout-bug">
101  <xsl:param name="conum" select='1'/>
102
103  <xsl:choose>
104    <!-- Draw callouts as images -->
105    <xsl:when test="$callout.graphics != '0'
106                    and $conum &lt;= $callout.graphics.number.limit">
107      <fo:external-graphic
108          src="{$callout.graphics.path}{$conum}{$callout.graphics.extension}"/>
109    </xsl:when>
110
111    <xsl:when test="$callout.unicode != 0
112                    and $conum &lt;= $callout.unicode.number.limit">
113      <xsl:choose>
114        <xsl:when test="$callout.unicode.start.character = 10102">
115          <xsl:choose>
116            <xsl:when test="$conum = 1">&#10102;</xsl:when>
117            <xsl:when test="$conum = 2">&#10103;</xsl:when>
118            <xsl:when test="$conum = 3">&#10104;</xsl:when>
119            <xsl:when test="$conum = 4">&#10105;</xsl:when>
120            <xsl:when test="$conum = 5">&#10106;</xsl:when>
121            <xsl:when test="$conum = 6">&#10107;</xsl:when>
122            <xsl:when test="$conum = 7">&#10108;</xsl:when>
123            <xsl:when test="$conum = 8">&#10109;</xsl:when>
124            <xsl:when test="$conum = 9">&#10110;</xsl:when>
125            <xsl:when test="$conum = 10">&#10111;</xsl:when>
126          </xsl:choose>
127        </xsl:when>
128        <xsl:otherwise>
129          <xsl:message>
130            <xsl:text>Don't know how to generate Unicode callouts </xsl:text>
131            <xsl:text>when $callout.unicode.start.character is </xsl:text>
132            <xsl:value-of select="$callout.unicode.start.character"/>
133          </xsl:message>
134          <fo:inline background-color="#404040"
135                     color="white"
136                     padding-top="0.1em"
137                     padding-bottom="0.1em"
138                     padding-start="0.2em"
139                     padding-end="0.2em"
140                     baseline-shift="0.1em"
141                     font-family="{$body.font.family}"
142                     font-weight="bold"
143                     font-size="75%">
144            <xsl:value-of select="$conum"/>
145          </fo:inline>
146        </xsl:otherwise>
147      </xsl:choose>
148    </xsl:when>
149
150    <!-- Pick callouts from Zapf Dingbats - max 10 -->
151    <xsl:when test="$callout.dingbats != '0' and $conum &lt;= 10">
152      <fo:inline font-family="ZapfDingbats">
153        <xsl:choose>
154          <xsl:when test="$conum=1">&#x2776;</xsl:when>
155          <xsl:when test="$conum=2">&#x2777;</xsl:when>
156          <xsl:when test="$conum=3">&#x2778;</xsl:when>
157          <xsl:when test="$conum=4">&#x2779;</xsl:when>
158          <xsl:when test="$conum=5">&#x277A;</xsl:when>
159          <xsl:when test="$conum=6">&#x277B;</xsl:when>
160          <xsl:when test="$conum=7">&#x277C;</xsl:when>
161          <xsl:when test="$conum=8">&#x277D;</xsl:when>
162          <xsl:when test="$conum=9">&#x277E;</xsl:when>
163          <xsl:when test="$conum=10">&#x277F;</xsl:when>
164          <xsl:otherwise><!-- overflow -->
165            <xsl:attribute name="color">red</xsl:attribute>
166            <xsl:text>&#x25CF;</xsl:text>
167            <xsl:message>
168              <xsl:text>A callout list contains more than 10 callouts;</xsl:text>
169              <xsl:text> callout numbering truncated.</xsl:text>
170            </xsl:message>
171          </xsl:otherwise>
172        </xsl:choose>
173      </fo:inline>
174    </xsl:when>
175
176    <!-- Most safe: draw a dark gray square with a white number inside -->
177    <xsl:otherwise>
178      <fo:inline background-color="#404040"
179                 color="white"
180                 padding-top="0.1em"
181                 padding-bottom="0.1em"
182                 padding-start="0.2em"
183                 padding-end="0.2em"
184                 baseline-shift="0.1em"
185                 font-family="{$body.font.family}"
186                 font-weight="bold"
187                 font-size="75%"><xsl:value-of select="$conum"/></fo:inline>
188    </xsl:otherwise>
189  </xsl:choose>
190</xsl:template>
191
192</xsl:stylesheet>
193