Re: Translucent Scrollbars

["Lieven van der Heide" <lievenvanderheide gmail com>]

Well, isn't the whole point of scrollbars to be able to scroll to
stuff that's otherwise hidden (behind something else)? I don't see why
it would be a problem to show a piece of the content that would
otherwise be hidden at all. As long as scrolling to the sides
completely, makes the content fully exposed at the left/top of the
scroll bars.

In that case of the android example, I can see that it would be a
problem, but imagine a scroll view that has both horizontal and
vertical scrolling. Then it could work, and could indeed make for a
fancy theme.

But anyway, it will be really hard to implement it in the current gtk.
Maybe you could use the offscreen rendering, to render the part that
would otherwise be below the scrollbar, and then blend that into the
scroll bar in the theming code.

On 8/19/08, Kalle Vahlman <kalle vahlman gmail com> wrote:
> 2008/8/19 Christian Dywan <christian imendio com>:
>
> > Am Tue, 19 Aug 2008 15:17:10 +0200
>  > schrieb Mathias Hasselmann <mathias hasselmann gmx de>:
>  >
>  >> When looking at some Android screen shots[1] I've realized that their
>  >> scrollbars are translucent. That's a really nice idea IMHO.
>  >> I wonder if we can implement this feature in GTK+.
>  >>
>  >> Ciao,
>  >> Mathias
>  >>
>  >> [1]
>  >> http://www.spiegel.de/fotostrecke/fotostrecke-34358-7.html#backToArticle=572913
>  >
>  > Hey Mathias,
>  >
>  > your example, and for that matter all screenshots with scrollbars on
>  > the linked site, is particularly a web browser.
>  >
>  > Are you thinking of a web widget only or generally of any widgets in
>  > Gtk that can be embedded in scrollbars? The latter might involve
>  > non-trivial changes, looking at how isolated scrollbars normally are
>  > from their child, there are even thick borders between the child and
>  > the scrollbars in the dozen engines/ themes I have tested here when
>  > writing this.
>
>
> Before even starting to think of all the layout-related technical
>  details, one should stop to think if one really wants interesting
>  content to be underneath mouse-usable scrollbars (ie. unreachable) and
>  why...
>
>  Then again, for a panned content, scrollbars that are translucent or
>  even on-screen only when panning make perfect sense. However, I
>  suppose such discussions should be deferred to a point in time that
>  GTK+ actually has some notion of panning.
>
>  Which would be nice, btw.
>
>
>  --
>  Kalle Vahlman, zuh iki fi
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