Am Montag, 27. Dezember 2010, um 01:34:47 schrieb Dan Eble: > The only mention I can find of PDF hyperlinks is for the point-and-click > feature.
LilyPond also supports URL hyperlinks with the \with-url command. They are written out to the intermediate .ps file as pdfmark and correctly converted to PDF. > I would like to create a PDF with page references > (toc/index/etc.) that jump to the page when clicked. Internal links (to a particular position marked by a \label) are not supported so far. > Is that something that can be done in scheme? If so, in which file and > functions should I begin? I don't think it can be done in Scheme alone. I don't think it would be too hard, though. Basically, it can be done with pdfmark, too. For the specification of the pdfmark Postscript extension see http://partners.adobe.com/public/developer/en/acrobat/sdk/pdf/pdf_creation_apis_and_specs/pdfmarkReference.pdf What needs to be done is: 1) In the Postscript backend (scm/famework-ps.scm or scm/output-ps.scm) written in Scheme: -) Write out each \label as a named destination to the .ps file. The code is [ /Dest /nameOfYourLabel /DEST pdfmark and needs to be inserted on the page where the label was placed. -) For the link, you also need to insert [ /Rect [70 650 210 675] /Dest /nameOfYourLabel /Subtype /Link /ANN pdfmark where the [70 650 210 675] specify the exact rectangle for the link. 2) Of course, the non-trivial part of all this is how to get the information about label and link to the ps backend... I don't have a clear idea how to propagate that information from the markup interpretation to the backend. It might be able to do this in Scheme, but maybe also some C++ is required. From a quick look at the code, all labels are collected in the label-page- table variable of the paper object, but I don't know if this is available in the backend... In any case, this is a very good enhancement request, so bug squad, please open a bug report (enhancement request) for this. Cheers, Reinhold -- ------------------------------------------------------------------ Reinhold Kainhofer, reinh...@kainhofer.com, http://reinhold.kainhofer.com/ * Financial & Actuarial Math., Vienna Univ. of Technology, Austria * http://www.fam.tuwien.ac.at/, DVR: 0005886 * LilyPond, Music typesetting, http://www.lilypond.org _______________________________________________ bug-lilypond mailing list bug-lilypond@gnu.org http://lists.gnu.org/mailman/listinfo/bug-lilypond