[Qt-interest] QGestureRecognizer and TouchBegin Events

[Sean Hayes]

On Mon, Nov 29, 2010 at 2:18 PM, Thiago Macieira <thiago at kde.org> wrote:
> Em Segunda-feira, 29 de Novembro de 2010, às 17:41:23, Sean Hayes escreveu:
>> When a TouchBegin event is received by a widget that is registered to
>> receive a gesture, the appropriate QGestureRecognizer receives
>> QTouchEvents. If additional fingers are added or removed to the the
>> surface, the QTouchEvent's touch points are updated accordingly. Also,
>
> Which platform is that? We've just fixed this issue for the XInput2 hack (used
> in MeeGo 1.2).

I am using Windows 7 on a Dell XT2.
>
>> when the use drags his or her fingers off the widget the
>> QGestureRecognizer continues to receive QTouchEvent. However, the
>> QTouchEvent's touch-point count is only updated when a finger is
>> removed from the surface (i.e., now new touch points are added)!
>>
>> I have a custom gesture that allows the user the change the number of
>> fingers in the middle performing the gesture. If the user removes a
>> finger, the gesture recognizer send the correct finger count, but I
>> cannot figure out how to do the same thing when a user adds a finger
>> while off the original widget. Does this sound like a Qt design
>> oversight or bug? Any ideas on how to get this to work would be great.
>
> --
> Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
>  Senior Product Manager - Nokia, Qt Development Frameworks
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>
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