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List:       calligra-devel
Subject:    Re: Plasma-based presentation view for calligra-stage
From:       "Aaron J. Seigo" <aseigo () kde ! org>
Date:       2011-03-21 7:07:27
Message-ID: 201103210807.27797.aseigo () kde ! org
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On Monday, March 21, 2011, Thorsten Zachmann wrote:
> Hello Sinny,
> 
> On Monday, March 21, 2011 04:52:08 Sinny Kumari wrote:
> > CC'ing to plasma-devel, thanks for the suggestion todd.
> > 
> > On Mon, Mar 21, 2011 at 1:31 AM, todd rme <toddrme2178@gmail.com> wrote:
> > > On Sun, Mar 20, 2011 at 1:17 PM, Sinny Kumari <ksinny@gmail.com> wrote:
> > >> HI!
> > >> 
> > >> I am working on idea
> > >> http://community.kde.org/GSoC/2011/Ideas#Project:_Plasma-based_Present
> > >> at ion_View
> > >> 
> > >> In order to do it, initially I thought, I will use D-Bus for
> > >> slideshow, next/previous slide
> > >> Later what I understood is that, kpresenter must be running for the
> > >> D-Bus call to work which is not a good approach to do.
> > >> 
> > >> Also, I am not sure if I can get huge data like Slide previews through
> > >> D-Bus calls
> > >> 
> > >> So, what would be the preferred way to do this? Please suggest me
> 
> I see two possibilities here.
> 
> 1. Use dbus to communicate with stage(kpresenter)
> 
> 2. Use plasma in stage.

with the Plasma KPart, which is in kde-runtime, #2 is probably the easiest. 
and if done using a proper DataEngine/Plasmoid split (as in Skrooge or the 
Kontact dashboard), it could be moved to a #1 style implementatoin fairly 
easily by adjusting the DataEngines.

> If used plasma internally it should be made sure that this is an optional
> dependency that is not needed if the user doesn't want it.

with the Plasma KPart, it becomes a runtime dependency only. the existence can 
be checked for with KServiceTypeTrader, and it ships with kde-runtime so there 
are no further installation dependencies as of right now (this may change in 
future when we modularize kde-runtime).

here's a quicky tutorial/overview for using the KPart:

	http://techbase.kde.org/Development/Tutorials/Plasma/ApplicationShell

and there is a small example in kdeexamples/plasma/c++/kpart/

-- 
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA  EE75 D6B7 2EB1 A7F1 DB43

KDE core developer sponsored by Qt Development Frameworks

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