Hi Jeremias,

Jeremias Maerki wrote:
> IFParser is also still missing the parse code for the structure tree. I
> guess I would defer the call to startPageSequence in the IFParser, then
> parse the reduced FO tree using a ContentHandler delegate, set that on
> the user agent and then call startPageSequence when the first page tag
> is encountered.

That’s what I ended up doing.
Thanks for your input,

> On 24.09.2009 13:07:11 Vincent Hennebert wrote:
>> Jeremias Maerki wrote:
>>> Not just like that (if at all). The content items being produced inside
>>> the page-sequence have to be linked into the structure tree. There are
>>> links (MCIDs) back and forth between the structure tree and the content
>>> streams. You have to have the structure tree available while you create
>>> the page contents to build up the links. You could probably move the
>>> generation to endPageSequence but you'd end up duplicating some of the
>>> data structures for establishing the links in the process which you'd
>>> then have to map to the PDF library in the end. Not sure if that's what
>>> you want. I don't have this stuff present as much as back when I helped
>>> Jost, so I may be missing something.
>> Ok, then there’s the following problem: when creating the PDF document
>> out of an IF XML file, the structure tree is not yet available at the
>> time PDFDocumentHandler.startPageSequence is called. Indeed in the IF
>> the structure tree is stored as a child of the page-sequence element.
>> Any idea of how to handle this, other than putting an ugly boolean at
>> the beginning of PDFDocumentHandler.startPage, “if structure tree not
>> yet built, then build structure tree”?
>>> On 23.09.2009 13:44:11 Vincent Hennebert wrote:
>>>> To those PDF specialists around here: am I right that the structure tree
>>>> could as well be converted into PDF at the end of a page sequence, as at
>>>> the beginning?
>>>> In other words: could the piece of code dealing with the structure tree
>>>> be moved from PDFDocumentHandler.startPageSequence to
>>>> PDFDocumentHandler.endPageSequence?
>>>> Thanks,
>>>> Vincent
>>> Jeremias Maerki
>> Thanks,
>> Vincent
> Jeremias Maerki

Reply via email to