[vtk-developers] Guidance with dropping Qt 4

[Elvis Stansvik]

2017-07-20 19:37 GMT+02:00 Utkarsh Ayachit <utkarsh.ayachit at kitware.com>:
> Folks.
>
> As I work on dropping Qt 4 support in VTK, I am trying to figure out how
> best to deprecate old classes.
>
> With Qt 5, classes like QVTKWidget, QVTKWidget2, QVTKPaintEngine etc don't
> really make much sense. While they can compile with Qt 5, they won't work
> well (if at all). I wonder if I should just remove them, rather than mark
> them as deprecated since they really are not meant to be used with Qt 5.

While I'm all for you guys dropping Qt 4, I think there should be a
deprecation period for at least QVTKWidget.

It's only recently that we ported our app to the new QVTKOpenGLWidget,
before that we used QVTKWidget with Qt 5 without any big problems. The
only real reason for the porting is that we wanted HiDPI working
properly (and well, it made sense anyway), so I can imagine a lot of
others are still using QVTKWidget.

Elvis

>
> Thoughts?
>
> Utkarsh
>
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