[LyX/master] #12434 add event handler for pinch-to-zoom gesture

[Scott Kostyshak]

On Tue, Jan 04, 2022 at 07:51:28AM +0100, Stephan Witt wrote:
> Am 03.01.2022 um 16:15 schrieb Scott Kostyshak <skostysh at lyx.org>:
> >
> > On Mon, Jan 03, 2022 at 07:07:45AM +0100, Stephan Witt wrote:
> >> commit d4324034300f73f76e5ac34fb1e7653fa6e2ddf5
> >> Author: Stephan Witt <switt at lyx.org>
> >> Date:   Mon Jan 3 07:37:03 2022 +0100
> >>
> >>    #12434 add event handler for pinch-to-zoom gesture
> >> ---
> >
> > Cool. I do not actually use the touch screen, but I just tested and it
> > works well.
> 
> Thank you.
> 
> > I do not imagine you want to go down this rabbit hole, but just in case:
> >
> > - when I use pinch to zoom, LyX starts selecting text. Should we not
> >  change the selection when pinch-to-zoom is executing?
> 
> Do I understand it right? You get a selection when using pinch-to-zoom?
> This is not the case on my system. The zoom factor is changed only.

Yes that's correct. Perhaps it's a difference with platforms or due to
different Qt versions. In any case, I don't think it's worth looking
into now.

> > What is the expected way to scroll down in a document using the touch
> > screen? Also two fingers?
> 
> Yes. But this is the case (on Mac at least) w/o the patch already.

Ah good to know.

Scott
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