[poppler] thumbnails

[Albert Astals Cid]

A Dijous, 4 de juny de 2009, Shawn Rutledge va escriure:
> On Tue, Jun 2, 2009 at 4:32 PM, Pino Toscano <pino at kde.org> wrote:
> > I reviewed, polished and pushed your patch, thanks!
> > There were few quirks, but mostly small things (like indentation).
> >
> >> So far the thumbnail images seem to be 24-bit RGB; I don't know if
> >> that's always going to be true.
> >
> > For now I left this assumption; but it should be checked which format is
> > actually returned by Page::loadThumb(), and in case fill the QImage by
> > adapting the input data.
>
> Well at first glance it seemed that it would require looking at the
> bytes-per-row (rowstride) and guessing which of the QImage-supported
> formats.  Or is there a more direct way for poppler to specify what
> image format it got?
>
> >> I tested it by modifying the demo program to have a thumbnails dock
> >> window, using the usual QTableView, which isn't so great because
> >> QIcons in a QTableView are a rather tiny size by default, but at least
> >> you can see that the thumbnails got generated correctly.  I will try
> >> to use a QGraphicsView in my own program for that.
> >
> > I changed that by making use of QListWidget for it, should looks better
> > now. Most probably can be improved, but at least as first approach works
> > ;)
>
> Cool.  Thanks for merging the patch.
>
> I just got this project registered on SourceForge and checked in the
> code and a screenshot:
>
> https://sourceforge.net/projects/taborca/
>
> So far it can view PDFs and you can reorder pages by drag-and-dropping
> the thumbnails, but only virtually... there is no "save".  I will try
> first to do it with pdftk, but I see there are other projects that
> purport to be able to do this kind of re-arranging.
>
> What would it take to add this ability to poppler, to save a PDF with
> pages in a different order?

Basically you would have to modify the Pages object of the Catalog, should not 
be THAT difficult, but it's not a five minutes hack either.

Albert

> _______________________________________________
> poppler mailing list
> poppler at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/poppler