The test function assigns a hard coded rectangle to gestures and uses
the default size of a graphics view at the same time.
The leads to flakiness, where the gestures can't be delivered when their
size is out of bounds of the view's geometry.
Assign size size dynamically, according to the view's geometry.
Task-number: QTBUG-130811
Pick-to: 6.5
Change-Id: If75f59d15f84e610b4ec987daa2a06ce62539228
Reviewed-by: Frederic Lefebvre <frederic.lefebvre@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 6995709992344ac608f2b2a19b2c3883019bfaeb)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
05dfd8a0bd