Re: PDF Viewer does not have continuous scrolling

[Riccardo Mottola]

Hi,


On 06/11/2016 21:22, Svetlana Tkachenko wrote:
> I don't know where ViewPDF currently is hosted and if somebody maintains
> > it at all - Is it another name for the old Vindaloo viewer?
> > I could trace that to:
> > http://gna.org/projects/gsimageapps <http://gna.org/projects/gsimageapps>
> >
> > Based on poppler.. it looks another piece of GS software that is....
> > bitrotting
> Is being based on poppler bad? Is this software bad in its design?

Nothing bad being based on poppler.. I don't know the design of that 
program so I can't tell.
Poppler or xpdf can give at least some PDF functionality, while for 
ghostscript, like used in GSPdf, each page is just an image, there won't 
be stuff like search and I guess it will be always slower, but the 
rendering quality is quite high.
Different approaches.

The discussion of xpdf vs poppler then goes beyond this thread I guess.

> I tried to compile PoppletKit for Vindaloo, and it gives me this error
> even though I already installed libpoppler-dev and libpopplerkit0:
>
> Making all for subproject bindings...
> make[3]: *** No rule to make target 'obj/bindings.obj/poppler.c.o',
> needed by 'obj/subproject.o'.  Stop.
> /usr/share/GNUstep/Makefiles/Instance/subproject.make:45: recipe for
> target 'internal-subproject-all_' failed
> make[2]: *** [internal-subproject-all_] Error 2
> /usr/share/GNUstep/Makefiles/Master/rules.make:311: recipe for target
> 'bindings.all.subproject.variables' failed
> make[1]: *** [bindings.all.subproject.variables] Error 2
> /usr/share/GNUstep/Makefiles/Master/rules.make:311: recipe for target
> 'PopplerKit.all.framework.variables' failed
> make: *** [PopplerKit.all.framework.variables] Error 2

Sorry I don't know, never built that software myself.

> Is it useful for me to try GSPdf and edit it to add continuous scrolling
> there?
>
> What is a good starting point for getting continuous scrolling somehow
> eventually?

I can't think of an easy way of adding it in GSPdf. THink of GSPdf like 
an image viewer... one image after teh other, just that the images are 
your pages rendered to a /tmp

Riccardo