Henrik Holle wrote:
can you please explain me how to count the page in a fo with an xslt?
You have to render the XML with a placeholder, count
pages, and render again with the actual number of pages.
FOP provides a method to access the total number of
pages rendered, this allows automation (note: code
can be optimized):
public static void main(String args[]) {
try {
Driver driver =new Driver();
driver.setOutputStream(new FileOutputStream(args[2]));
driver.setRenderer(Driver.RENDER_PDF);
Transformer transformer=TransformerFactory.newInstance()
.newTransformer(new StreamSource(new File(args[1])));
transformer.setParameter("page-count","#");
transformer.transform(new StreamSource(new File(args[0])),
new SAXResult(driver.getContentHandler()));
String pageCount=Integer.toString(driver.getResults().getPageCount());
driver =new Driver();
driver.setOutputStream(new FileOutputStream(args[2]));
driver.setRenderer(Driver.RENDER_PDF);
transformer=TransformerFactory.newInstance().
newTransformer(new StreamSource(new File(args[1])));
transformer.setParameter("page-count",pageCount);
transformer.transform(new StreamSource(new File(args[0])),
new SAXResult(driver.getContentHandler()));
}
catch( Exception e) {
e.printStackTrace();
}
}
A sample XSL:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format";>
<xsl:strip-space elements="*"/>
<xsl:param name="page-count" select="'#'"/>
<xsl:template match="doc">
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format";>
<fo:layout-master-set>
<fo:simple-page-master master-name="content"
page-width="210mm" page-height="297mm"
margin-left="25mm" margin-right="25mm"
margin-top="25mm" margin-bottom="15mm">
<fo:region-body margin-bottom="10mm"/>
<fo:region-after extent="10mm"/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="content">
<fo:static-content flow-name="xsl-region-after">
<fo:block text-align="end">
<fo:page-number/>
<xsl:text> of </xsl:text>
<xsl:value-of select="$page-count"/>
</fo:block>
</fo:static-content>
<fo:flow flow-name="xsl-region-body">
<xsl:apply-templates/>
</fo:flow>
</fo:page-sequence>
</fo:root>
</xsl:template>
<xsl:template match="sect1">
<fo:block space-before="12pt">
<xsl:apply-templates select="title"/>
</fo:block>
<fo:block space-before="3pt">
<xsl:apply-templates select="title/following-sibling::*"/>
</fo:block>
</xsl:template>
<xsl:template match="p">
<fo:block space-before="3pt">
<xsl:apply-templates/>
</fo:block>
</xsl:template>
</xsl:stylesheet>
Note the parameter page-count.
A sample XML, just for completeness:<?xml version="1.0"?>
<doc>
<sect1>
<title>Password</title>
<p>The users password, as an MD5 hash. The hash is calculated
as follows: First the password String is converted into an
UTF8 encoded array of bytes: String.getBytes("UTF8"). The
MD5 digest is calculated over the given array of bytes and
stored as a hex string.</p>
</sect1>
</doc>
HTH
J.Pietschmann
