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List:       koffice-devel
Subject:    Re: Continuing thumbnail obsession
From:       Laurent Montel <lmontel () mandrakesoft ! com>
Date:       2002-02-28 17:36:25
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Le Thursday 28 February 2002 18:18, David Faure a écrit :
> On Thursday 28 February 2002 13:37, Simon MacMullen wrote:
> > My continuing obsession with thumbnails has now created one for koffice
> > files:
> >
> > http://www.babysimon.co.uk/kde/kofficepreview.png
>
> Wow. This is amazing. Thought about this in the past, but it's cool to see
> this begin actually done, especially in such a generic way. Very nice.
> (The kofficecore design pays a lot).
>
> > If you look carefully at the code you may see traces of the HTML preview
> > and Philippe Fremy's KParts tutorial :)
>
> ;)
> That tutorial could be updated for KDE 3 ... the whole "declaring a part"
> or "finding a part" code that used to be necessary with KDE 2 has been made
> much simpler by KDE 3 (I gave all details in the tutorials I wrote for IBM
> developerWorks, but they're not online yet).
>
> > However, it's not quite as I would like it. I can't seem to control the
> > scaling in a very meaningful way. What I would like to do is find out how
> > wide the document "wants" to be, then scale for that (particularly
> > important for KWord docs). But I can't mind a method that tells me this.
> > Is there one?
>
> Hmm, each applications handles the KoPageLayout itself.
> The way to gain access to this from KoDocument would be to centralize even
> more code in kofficecore, e.g. storing the page layout there and porting
> the koffice apps to use that variable instead of storing it themselves.
>
> > Also, when adjusting the zoom parameters which are passed to
> > KoDocument::paintEverything, font sizes don't seem to change. I recall
> > this used to be a problem but I don't know whether it's been fixed yet
> > (ummm, I'm afraid I hardly use KOffice...).
>
> Is that with KOffice-1.1[.1] or with KOffice-CVS ? It's about KWord, right
> ? This sounds like a 1.1 bug, it should be fine with KWord-CVS.
>
> > Also, it completely fails to work with KPresenter. I don't know why.
>
> It doesn't implement paintContent at the moment... Needs to be ported
> to the new design in KPresenter. This means, embedding a kpresenter doc
> doesn't paint anything either. Needs to be fixed. Laurent, maybe ? ;)

Hi,

Yes for the moment it's broken. I hope to fix it this week.
No problem it's a known bug.

Regards

> Hmm, but this means it's indeed about the CVS version...
> So the font size problem surprises me.
> Can you test what happens when embedding a kword doc ? Should be the same
> code.
>
> > The attached patch provides two .desktop files to switch it on and off -
> > one for KOffice and one for MSOffice. I don't know if this is the best
> > way to do it - should it be lots of little .desktops or one big one
> > maybe?
>
> A little one sounds good to me. Otherwise the preview menu in konqueror
> would become really overcrowded, no ?
>
> > What else? Oh, to reply to the list admin's question, yes, it probably is
> > quite slow. "Unfortunately" I developed it on my fast work machine. It
> > might go faster if it "reused" the KoDocuments (like the HTML preview
> > reuses KHTML), but it would probably need a QDict of them. Hmmm...
>
> Hmmmm too ;)
> I think the longest part is the loading. So reusing KoDocument to save a
> new/delete wouldn't buy much speed, I'm afraid.

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