Re: [docbook-apps] Titleabbrev in outer margin

[Frank Arensmeier <frank@nikemedia.se>]

Just for the record. I found the solution by myself. The following  
xpath expression gives me the position of the article element in the  
xml tree:

<xsl:param name="article.position">
   <xsl:value-of select="count(ancestor-or-self::article/preceding- 
sibling::article)" />
</xsl:param>

Based on that, I managed to calculate the offset value for the  
fo:block that contains the titleabbrev.

/frank

24 mar 2010 kl. 18.46 skrev Frank Arensmeier:

> Sorry to bother you all. Any ideas regarding this issue?
> Thank you.
>
> /frank
>
> 23 mar 2010 kl. 13.02 skrev Frank Arensmeier:
>
>> Hello list.
>>
>> I am not a XSL programmer, so I kindly ask you to bear with me. I  
>> have a docbook compilant XML file (an operating instruction) that  
>> contains several different languages. Basic outline of the XML file  
>> is:
>>
>> <part>
>> <article lang="en">
>>   <title />
>>   <titleabbrev>English</titleabbrev >
>>   [...]
>> </article>
>> <article lang="de">
>>   <title />
>>   <titleabbrev>Deutsch</titleabbrev>
>>   [...]
>> </article>
>> </part>
>>
>> What I like to accomplish is putting the language names into the  
>> outer margin of my pdf. I found an example in the mailing list  
>> archives (http://www.mail-archive.com/docbook-apps@lists.oasis-open.org/msg12243.html 
>> ) which describes a way to extend the pagesetup.xsl template with a  
>> static content region.
>>
>> After some tweaks, I actually managed to incorporate the example  
>> into my customization layer. However, I need to find a way to  
>> calculate an offset value for the top position of the fo-block that  
>> contains the language name. Whenever the language name changes, the  
>> offset should increase (and the fo block moves down). Right now,  
>> those fo-block containers always have the same position.
>>
>> My idea was to get the position of the parent element in the xml  
>> tree (the article element) and calculate the offset based on that.  
>> But I must be doing something wrong. Here is what I have come up  
>> with so far.
>>
>> 1) Changed the pagesetup.xsl template:
>> <xsl:template match="*" mode="running.head.mode">
>> <xsl:param name="master-reference" select="'unknown'"/>
>> <xsl:param name="gentext-key" select="local-name(.)"/>
>>
>> <!-- remove -draft from reference -->
>> <xsl:variable name="pageclass">
>>   <xsl:choose>
>>     <xsl:when test="contains($master-reference, '-draft')">
>>       <xsl:value-of select="substring-before($master-reference,'- 
>> draft')"/>
>>     </xsl:when>
>>     <xsl:otherwise>
>>       <xsl:value-of select="$master-reference"/>
>>     </xsl:otherwise>
>>   </xsl:choose>
>> </xsl:variable>
>> <fo:static-content flow-name="xsl-region-before-blank">
>>   <fo:block xsl:use-attribute-sets="header.content.properties">
>>     <xsl:call-template name="header.table">
>>       <xsl:with-param name="pageclass" select="$pageclass"/>
>>       <xsl:with-param name="sequence" select="'blank'"/>
>>       <xsl:with-param name="gentext-key" select="$gentext-key"/>
>>     </xsl:call-template>
>>   </fo:block>
>>
>>   <!-- Sidebar output: -->
>>   <xsl:call-template name="article.language.bar"/>
>>
>> </fo:static-content>
>> [...]
>> </xsl:template>
>>
>> 2) Template for the sidebar
>>
>> <xsl:template name="article.language.bar">
>>
>> <!-- calculate the top offset -->
>> <xsl:call-template name="parent.position">
>>   <xsl:with-param name="node" select="ancestor-or-self::article" />
>> </xsl:call-template>
>>
>> <fo:block-container
>>     text-align="center"
>>     reference-orientation="90"
>>     left="8in"
>>     absolute-position="fixed"
>>     height="0.25in"
>>     width="1.25in"
>>     top="0.5in" <--- This value should be calculated with the offset
>>     z-index="1" >
>>   <fo:block padding="0.05in" background-color="#ddd" font- 
>> size="1em" color="white" font-weight="bold">
>>     <xsl:apply-templates select="." mode="titleabbrev.markup" />
>>   </fo:block>
>> </fo:block-container>
>> </xsl:template>
>>
>> 3) Template for calculating the position of the article element
>>
>> <xsl:template name="parent.position">
>> <xsl:param name="node" />
>> <xsl:param name="position" select="position()" />
>> <xsl:message>Position is: <xsl:value-of select="$position" /></ 
>> xsl:message>
>> </xsl:template>
>>
>> But, the position is always 1. Is the basic idea of calculating the  
>> offset value for the top position with help of the parent element  
>> position feasible or is there an easier way?
>>
>> Kind regards,
>> /frank
>>
>>
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>
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