Key events have a wider range of possible values than the unicode range,
as they also include all the special keys as defined in Qt::Keys.
Instead of turning the argument to keyMapForKey into an integer,
we can remove the argument completely, as it was only used as a
fallback in the cases where UCKeyTranslate (or in the future,
charactersByApplyingModifiers:), failed to map the virtual key
and modifiers to a character. But in those cases we should not
fall back to the Qt key from the key event, as that doesn't
match what the keyboard layout defines. Most keyboard layouts
explicitly define the base key as the key for these "undefined"
mappings, but if the keyboard layout does not, we should not
produce any input in the application, to match what AppKit does
in this case.
Fixes: QTBUG-90315
Pick-to: 6.0
Change-Id: Ib9ffd9521049ee8e4b103597c1d34cbe3d23dbdf
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>