[Interest] Qt 5.7 QuickControls 2 are not multitouch??

[Jean-Michaël Celerier]

Nuno Santos I just did this : https://github.com/jcelerier/
qml-creative-controls/blob/master/src/toucharea.cpp and it worked for my
use case (I just need one finger per widget).



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Jean-Michaël Celerier
http://www.jcelerier.name

On Mon, May 1, 2017 at 3:38 PM, Nuno Santos <nunosantos at imaginando.pt>
wrote:

> Hey,
>
> I was never successful extending QQuickItem to override touchEvent and
> handle then on the C++.
>
> that’s what I was trying to say on previous email that Shawn Rutledge
> replied to me and I forgot to reply to him.
>
> What exactly must done (the minimal necessary steps), to have a QQuickItem
> responding to touchEvents on the C++ side?
>
> Can you please point an example or explicitly say here the minimal amount
> of code to make it do it? I simply can’t! :(
>
> Regards,
>
> Nuno
>
>
>
> On 1 May 2017, at 11:15, Jean-Michaël Celerier <
> jeanmichael.celerier at gmail.com> wrote:
>
> > You can reimplement QQuickItem::touchEvent() to handle touch events. See
> QTouchEvent docs for the details.
>
> Thanks. I guess there's not a similar way if one wants to stay in the QML
> realm ?
>
> Best
> Jean-Michaël
>
>
>
> On Mon, May 1, 2017 at 8:24 AM, J-P Nurmi <jpnurmi at qt.io> wrote:
>
>> > On 1 May 2017, at 01:31, Jean-Michaël Celerier <
>> jeanmichael.celerier at gmail.com> wrote:
>> >
>> > Bump.
>> >
>> > Even if Qt Quick Controls 2.0 are apparently gaining this feature in
>> 5.9.0, how would one go when writing custom QQuickItem, if multiple
>> distinct items have to be able to receive touch events simultaneously ?
>>
>> Hi,
>>
>> You can reimplement QQuickItem::touchEvent() to handle touch events. See
>> QTouchEvent docs for the details.
>>
>> - http://doc.qt.io/qt-5/qquickitem.html#touchEvent
>> - http://doc.qt.io/qt-5/qtouchevent.html
>>
>> PS. Unlike for QWidgets and QGraphicsItems, there is no need to
>> explicitly enable touch events for QQuickItems.
>>
>> --
>> J-P Nurmi
>>
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