qt a11y: Implement QtAccessibleWidget::characterRect

With this and the suggested changes ([1], [2], [3], [4])
for 4 Qt issues I ran into ([5], [6], [7], [8]),
the Accerciser scenario described in

commit 7b312771d7eb33f7410167e36efdaeca6f540b1c
Date:   Thu Jul 14 08:35:53 2022 +0200

tdf#149952 gtk3 a11y: Return pos relative to window when requested

works for the qt6 VCL plugin as well.
(The complete GNOME Magnifier scenario from tdf#149952
still doesn't work with qt6, probably because a11y
events are not sent (reliably) so far.)

[1] https://codereview.qt-project.org/c/qt/qtbase/+/422251/1
[2] https://codereview.qt-project.org/c/qt/qtbase/+/422333/1
[3] https://codereview.qt-project.org/c/qt/qtbase/+/424510/2
[4] https://codereview.qt-project.org/c/qt/qtbase/+/424731/1
[5] https://bugreports.qt.io/browse/QTBUG-105031
[6] https://bugreports.qt.io/browse/QTBUG-105042
[7] https://bugreports.qt.io/browse/QTBUG-105281
[8] https://bugreports.qt.io/browse/QTBUG-105313

Change-Id: Iaccc89bf62c4617bee06f34ffebbd309a62212e9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137735
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

0 files changed, 0 insertions, 0 deletions