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List:       koffice-devel
Subject:    Re: koFilter/olefilter design question
From:       David Faure <david () mandrakesoft ! com>
Date:       2000-11-01 3:12:05
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On Sun, Oct 29, 2000 at 09:10:38PM +0000, Shaheed Haque wrote:
> Hi,
> 
> I have to invoke a filter from within an OLE filter. Specifically, in the 
> winword97 filter, I need to invoke the WMF filter. Here, the WMF filter 
> should cause a killustrator kpart to be embedded in the kword document.
> 
> The problem is that koFilterManager expects to invoke filters in the context 
> of a KoDocument (mainly to display the progress bar when it is not the 
> destination of the filter). There are two solutions I can think of:
> 
> 1. Pass a koDocument into olefilter for just this purpose. PRO: preserves 
> koFilterManager architecture. CON: koDocument is not currently used by any 
> OLEfilter.
> 
> 2. Allow koFilterManager to live with a NULL koDocument assuming the filter 
> does not need it. PRO: allows KoFilterManager to be used as the basis of a 
> non-GUI filter application. CON: not sure if this is the right thing to do.

I don't like dummy objects, so I'd vote for the latter.

If it's really just for progress info, it's not very useful
to have a kodocument... (can't check right now, sorry)

-- 
David FAURE
david@mandrakesoft.com, faure@kde.org
http://home.clara.net/faure/, http://www.konqueror.org/
KDE, Making The Future of Computing Available Today

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