Help regarding project

Tue Dec 20 07:43:38 GMT 2011

I'd like to point to this thread regarding kde on windows and poppler (by
the way is there a way in Googlemail to refer to a thread without
copy/paste it?):

From: *Pierre Stirnweiss* <pstirnweiss at googlemail.com>
Date: Sun, Mar 20, 2011 at 9:26 AM
To: Calligra Suite developers and users mailing list <calligra-devel at kde.org
>

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.

Pierre

----------
From: *Boudewijn Rempt* <boud at valdyas.org>
Date: Sun, Mar 20, 2011 at 9:34 AM
To: Calligra Suite developers and users mailing list <calligra-devel at kde.org
>

Yes, the words pdf import/export plugin should only use poppler-qt4 which
is a proper shared library. If that doesn't provide enough capabilities, we
will probably need to work together with the poppler guys to improve that
situation :-).

--
Boudewijn Rempt | http://www.valdyas.org, http://www.krita.org

----------
<https://mail.kde.org/mailman/listinfo/calligra-devel>
PierreSt

On Tue, Dec 20, 2011 at 8:25 AM, Sebastian Sauer <mail at dipe.org> wrote:

> **
> On 12/20/2011 05:20 AM, Panks wrote:
>
>
>
> On Mon, Dec 19, 2011 at 11:05 AM, Sebastian Sauer <mail at dipe.org> wrote:
>
>   On 12/18/2011 09:33 PM, Panks wrote:
>
> Hello everyone,
> This is Pankaj, I am a second year CS student at Indian Institute of
> Technology, Madras.
> I am interested in contributing to Calligra.
>
>  While going through last year (2011) gsoc idea page I found these ideas
> interesting:
> Project: PDF-Import and/or PDF-Export AND Integrate with Akonadi for
> Calligra Words
> and Project: PSD File import/export Support for Calligra Krita
>
>  I would like to work upon one or more(depends on time) of these ideas.
> But since I am new to KDE, I would like someone to mentor/help me along
> with the project.
> So, can someone please help me along with?
>
>  Credentials: I have knowledge of C++ and Qt.
>
>
>  and hello Pankaj,
>
> I would be willing to mentor you on getting a PDF-Import filter for
> Calligra Words done. I am available in our irc-channel #calligra (on
> irc://irc.freenode.net/calligra - use e.g. the "Konversation" application
> to connect to IRC) as "sebsauer".
>
> First steps would be;
> 1. Build Calligra yourself from the sources. See
> http://community.kde.org/Calligra/Building
> 2. Get a KDE git-account to commit work you do. See
> http://techbase.kde.org/Contribute/Get_a_Contributor_Account
> 3. Get familar with the area where the work will happen. That is the
> filter-framework. We are going to write a filter-plugin that reads
> PDF-files using the poppler library and then generating OpenDocument ODF.
> The filter-framework will take care of all the things around including
> passing the resulting ODT-file on to Calligra Words so it's
> loaded+displayed and the user can edit+save.
>
> For point 3 you may like to have a look at;
> * in our sources at the Text-file importer located at
> calligra/filters/words/ascii/AsciiImport.cpp to have an idea how a filter
> looks like.
> * at the poppler-library. For that install libpoppler (if not already
> installed cause it's a pretty standard-library used by applications like
> Okular to display PDF-files). There look at the header-files to have an
> idea how the API looks like.
>
> Once those initial steps are done we would create an initial filter
> skeleton for the PDF-import filter. We could basically copy the AsciiFilter
> linked above over and 1) change the CMakeLists.txt to link against
> libpoppler and 2) change the desktop file so we take PDF-files as input and
> not text-files like the text-filter does and 3) start to use the
> libpoppler-API to evaluate the PDF-document.
>
> So much for the start :-)
>
>   *
>
> *
> First of all thanks a lot for mentoring this project. :-)
> I am done with step 1 & 2 and in step 3 I am going through the code of
> AsciiImport.cpp and simultaneous giving a look to some implementations of
> poppler.
>
>
> Very great. Lot of thanks for sharing your progress. For poppler you may
> like to have a look at http://people.freedesktop.org/~aacid/docs/qt4/ and
> for implementations using it
> http://mail.kde.org/pipermail/okular-devel/2011-May/009429.html (
> http://quickgit.kde.org/index.php?p=okular.git&a=summary ).
>
> For the initial skeleton what means the very first code to start a
> PDF-importer with I could provide some helping hands to get it done. We
> could start with creating a branch in our git and add a
> calligra/filters/words/pdfimport directory and then copy over the
> Ascii-filter + rename + adapt the CMakeLists.txt + link against libpoppler
> and create the first lines of code that use libpoppler to have a look first
> code that extracts content from a PDF and writes it into a ODT. You can
> ping me at IRC or write a mail to get started on this :-)
>
>
> _______________________________________________
> calligra-devel mailing list
> calligra-devel at kde.org
> https://mail.kde.org/mailman/listinfo/calligra-devel
>
>
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