Hi, Il 27/08/20 16:47, Thiago Macieira ha scritto:
So, can someone take a look at what it would take to make the models use 64- bit and come up with a proper guide for how to maintain code that compiles and works on both Qt5 and Qt6? The latter is very important: if you can't easily maintain for both, we just add to users' pain. It might be as simple as a typedef added to QAbstractItemModel.
Finger in the wind: it's going to be painful. int-based APIs are used- in virtuals in QAbstractItemModel (rowCount(), but also things like moveRows() which take int as parameter, so changing it is a straight API break)
- in Q(Persistent)ModelIndex- in convenience subclasses like QStandardItemModel (and of course in the convenience views)
- in selection handling - in the views' convenience handlers (e.g. QAbstractItemView::rowsInserted)Long story short, I don't see this happening without also some configure-time switch for a "qaimsizetype" or somesuch.
My 2 c, -- Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer KDAB (France) S.A.S., a KDAB Group company Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com KDAB - The Qt, C++ and OpenGL Experts
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