Hi Bernmeister,
You can do that. Take the block element, where your user can put the text in.
Give it an ID. Render to the area tree. Use Xpath and the ID to find the block.
Ask for ist height. Use this height/1000 (+ paddings, spaces, ...) to set the
extent.
private org.w3c.dom.Document multipass(Page p) {
StringBuffer sb = new StringBuffer();
sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
sb.append(("<fo:root xmlns:fo=\"http://www.w3.org/1999/XSL/Format\""; +
" xmlns:fox=\"http://xmlgraphics.apache.org/fop/extensions\"; >"
+
"<fo:layout-master-set>"));
for(PageMaster pm : p.getPageMasters().values()) {
sb.append(pm);
}
sb.append(p.getPageSequence());
sb.append("</fo:layout-master-set>");
sb.append(p);
sb.append("</fo:root>");
return multipass(sb);
}
private org.w3c.dom.Document multipass(StringBuffer sb) {
try{
return multipass(new StreamSource(new
ByteArrayInputStream(sb.toString().getBytes("UTF-8"))));
} catch (IOException e) {
System.out.println(e.getMessage());
e.printStackTrace();
}
return null;
}
private org.w3c.dom.Document multipass(StreamSource source) {
try {
FOUserAgent foUserAgent = getFopFactory().newFOUserAgent();
Transformer transformer = getMultipassFactory().newTransformer();
TransformerHandler handler =
getMultipassFactory().newTransformerHandler();
DOMResult domResult = new DOMResult();
handler.setResult(domResult);
org.apache.fop.render.Renderer targetRenderer =
foUserAgent.getRendererFactory().createRenderer(
foUserAgent, MimeConstants.MIME_PDF);
XMLRenderer renderer = new XMLRenderer();
renderer.mimicRenderer(targetRenderer);
renderer.setContentHandler(handler);
renderer.setUserAgent(foUserAgent);
foUserAgent.setRendererOverride(renderer);
Fop fop = getFopFactory().newFop(MimeConstants.MIME_FOP_AREA_TREE,
foUserAgent);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(source, res);
return (org.w3c.dom.Document)domResult.getNode();
} catch (TransformerException e) {
System.out.println(e.getMessage());
e.printStackTrace();
} catch (FOPException e) {
System.out.println(e.getMessage());
e.printStackTrace();
// } catch (IOException e) {
// System.out.println(e.getMessage());
// e.printStackTrace();
} catch (SAXException e) {
System.out.println(e.getMessage());
e.printStackTrace();
}
return null;
}
double height_in_milipoints = xPath.evaluate(".//blo...@prod-id='"+<your
id>+"']/@bpd", <your document root>, XPathConstants.NUMBER)
Mit freundlichen Grüßen
Georg Datterl
------ Kontakt ------
Georg Datterl
Geneon media solutions gmbh
Gutenstetter Straße 8a
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Geschäftsführer: Yong-Harry Steiert
Tel.: 0911/36 78 88 - 26
Fax: 0911/36 78 88 - 20
www.geneon.de
Weitere Mitglieder der Willmy MediaGroup:
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Willmy Consult & Content GmbH: www.willmycc.de
-----Ursprüngliche Nachricht-----
Von: Bernmeister [mailto:[email protected]]
Gesendet: Freitag, 24. April 2009 06:40
An: [email protected]
Betreff: Change the header/footer size in a PDF
Hi,
I have a simple XSL report with header, body and footer which renders to a PDF.
My Java application passes variables to the XSL to set body-margin,
header/footer-extent and font sizes.
I set the header size (in point not mm) to be slightly larger than the font
size for text to appear in the header. This works fine - gives enough space
for the header to hold all the text.
However, if the text in the header (which is set by a user back in the
application) is "longer" than the width of the header, that text will carry
over to a next line...and so bleed into the body.
I've seen this post from a while back
http://www.nabble.com/Auto-size-header-to-fit-with-content---td4765740.html#a4765740
...but it doesn't really help. Hardcoding for line height, text height, etc,
etc is too dangerous.
I've scoured the FOP Javadoc and cannot seem to figure out if it's possible to
access the rendered PDF (as some sort of tree or data object) and work out if
the header text has wrapped. Is it possible to determine this and so fix it?
Or is it possible to access the PDF itself and determine if wrapping has
occurred in the header?
If I can detect the header has wrapped text (or footer for that matter), I can
just increase the header by the original amount and re-render to PDF.
Thanks in advance,
Bernmeister.
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