Re: Minutes of the GTK+ Team Meeting - 2009-11-27

Hi Kris!,

On mié, 2009-11-25 at 08:50 +0100, Kristian Rietveld wrote:
> On Tue, Nov 24, 2009 at 11:13 PM, Emmanuele Bassi <ebassi gmail com> wrote:
> > 4. Implement finger and kinetic scrolling [jjardon]
> > - Midori has a finger/kinetic scrolled window implementation
> > - Hildon has one as well
> > - OpenMoko had one
> > - would it make sense to port the feature to GtkScrolledWindow when
> >  :gtk-touchscreen-mode is set to TRUE?
> I don't think so.  IMHO it would be better to put this in as a
> GtkScrolledWindow subclass or a new class with a shared interface.
> For stylus-based devices (if these are still going to be made), the
> normal scrolled window would be preferred.  But still touch screen
> mode will be enabled in that case.  Then there is also a case to be
> made for embedded devices with touch screens that do not have enough

In the future, touchscreen mode should perhaps be a per-device setting,
so I think it makes some sense to have this in GtkScrolledWindow, so the
behavior can be chosen based on the device that's currently interacting
with it.

> CPU/GPU power for kinetic scrolling, in which case you also want to
> use a normal scrolled window with touch screen mode.  (Think a touch
> screen configuration panel for a copier machine, our University has
> one.  Apart from CPU power, the thick coating on that screen is also
> not suitable for kinetic scrolling).

That's a reasonable usecase, perhaps kinetic scrolling should also obey
the gtk-enable-animations setting.

> regards,
> -kris.
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