GSoC 2011

[Pierre]

On Sunday 20 March 2011 10:24:48 Jain Basil Aliyas wrote:
> Hi,
> 
> On Sun, Mar 20, 2011 at 2:04 PM, Boudewijn Rempt <boud at valdyas.org> wrote:
> > On Sunday 20 March 2011 Mar, Pierre Stirnweiss wrote:
> > > Just something to keep in mind:
> > > on windows MSVC, libpoppler is a static library ("because poppler does
> > 
> > not
> > 
> > > have import/export thing for the core(private) api" dixit pinotree).
> > > Libpoppler is not meant to be used directly. For the karbon pdf filter
> > 
> > this
> > 
> > > is however what we do. This means that:
> > > -either we disable the filter on windows MSVC
> > > -or we link the filter to every library libpoppler was linked to. these
> > > should be exactly the same ones. that solution is not very practical to
> > > implement.
> > > 
> > > So if during the course of refactoring, this could be avoided/fixed,
> > > all
> > 
> > the
> > 
> > > better.
> > 
> > Yes, the words pdf import/export plugin should only use poppler-qt4 which
> > is a proper shared library.
> 
> Okay, I will try to work on poppler-qt4 and investigate its capabilities!
> 
> > If that doesn't provide enough capabilities, we will probably need to
> > work together with the poppler guys to improve that situation :-).
> 
> Scribus uses podofo library <http://podofo.sourceforge.net/about.html> for
> working with PDF. Should I do a comparison study to find out which one will
> suite more for this work?
Huge warning about podofo : they have no binary/source compatibility guarantee. 
It could be complicated to maintain a filter using podofo, except if they 
improve this.
And even between minor releases, things could break.
For instance : their GetObjectLength got a new mandatory parameter in 0.8.3, 
hence this kind of code :
#if (PODOFO_VERSION_MAJOR > 0) || (PODOFO_VERSION_MINOR > 8) || 
(PODOFO_VERSION_PATCH >= 3)
        if (obj->HasStream() && (obj-
>GetObjectLength(PoDoFo::ePdfWriteMode_Compact) > 10000)) {
#else
        if (obj->HasStream() && (obj->GetObjectLength() > 10000)) {
#endif

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