Smooth previews for open/save dialogs

[Jos Poortvliet]

On Nov 22, 2007 6:17 PM, Robert Knight <robertknight at gmail.com> wrote:
> Hi,
>
> I committed a similar feature for Dolphin some time ago (with a
> transition of about ~300ms IIRC) which was ultimately removed because
> it made the application feel slower than it really was.
>
> Try it with a really short delay, but I think this might suffer the
> same problem.
>
> I'd like to second comments on the dot and from Nuno that thumbnails
> instead of type icons in the display area are a higher priority.

Yeah, me too. Yet the video was incredibly cool ;-)

> Regards,
> Robert.
>
>
> On 22/11/2007, Aaron J. Seigo <aseigo at kde.org> wrote:
> > On Thursday 22 November 2007, Rafael Fernández López wrote:
> > > transitions are fast enough, apart from eyecandy it is not slow or
> > > annoying.
> >
> > some thoughts:
> >
> > - the transitions are 500ms. they should probably be more like 200-300ms as
> > the human eye is really quick with these sorts of things. 500ms is a long
> > time.
> >
> > - LinearCurve is probably not what you want here. try an EaseInCurve,
> > perhaps.
> > it should help make it look more natural, and may even let you increase the
> > time of the animation without annoying the eye as much; e.g. you might be
> > able to get away with .3s animation with EaseInCurve that would feel 'wrong'
> > with LinearCurve.
> >
> > - when going from one preview to another, it would be great to have the
> > current thumbnail fade out with the new one fading in over top of it (again,
> > keep it .2-.3s); this will make it feel smoother rather than flicking back
> > to
> > grey every time. as you're setting the opacity on the painter, this will be
> > really easy to do (set the opacity on the old preview inversly to the new
> > preview, probably at a great rate of decay so that by frame 75 or so it's
> > completely gone? these sorts of fades are pretty much everywhere these days
> > =)
> >
> > - the "stretching from one size to another" of dophin's previews are really
> > cool; perhaps bring both of those features together (size transition as well
> > as fade) ... is dolphin even using KFilePreview? (i'd check but i'm lazy
> > today ;)
> >
> > > I am going to work more on this patch to do really fast transitions for
> > > example when you have a transition on the 50% and you suddenly hover
> > > another element, but everything eyecandy.
> >
> > =)
> >
> > > But, the main question is: a patch of this kind can be committed on the
> > > current state of KDE release ?
> >
> > honestly, i think this is 4.1 material at this point, though very cool and
> > something that should go in.
> >
> > --
> > 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 Trolltech
> >
>