Code review comment for lp:~dandrader/qtmir/coordinateTranslator

On 14/04/2016 07:34, Gerry Boland wrote:
> Also, I want to avoid us just replacing parts of Mir whenever we feel like it. I'd like you to try using Mir's CoordinateTransform implementation, and if it is unworkable, we should communicate why that is to the Mir team.

Mir's default CoordinateTransform is oblivious to our QML scene and
that's why it must be replaced in qtmir. And, as explained before,
having a QQuickItem aware of changes to its scene position (so it could
update its mir model counterpart) is not feasible.

The only way to have it working the way you want (QML keeping some mir
scene model in sync with it) is to have untiy8 QML code *explicitly*
calling scene sync functions at key moments. This is error prone and
clutters QML code and could easily impact performance negatively.