[vtk-developers] VTK and QT5

Elvis Stansvik elvis.stansvik at orexplore.com
Thu Jan 19 10:56:25 EST 2017

2017-01-19 15:43 GMT+01:00 Marcus D. Hanwell <marcus.hanwell at kitware.com>:

> On Thu, Jan 19, 2017 at 12:20 AM, Andrew Maclean
> <andrew.amaclean at gmail.com> wrote:
> > I see that on the ParaView Developers list that they are moving to Qt5 by
> > default. See Utkarsh's post on Mon 16 Jan 2017, titled: "ParaView and Qt
> 5".
> >
> > Given that ParaView is built on VTK and that Qt5 is well supported on
> modern
> > machines. Isn't it time that VTK defaulted to Qt5 also?
> >
> > It seems to me that is a good opportunity to do this now that VTK has
> moved
> > to C++11.
> >
> I totally agree, and have been wanting to move VTK forward for a
> while. One of the big blockers was the QVTKWidget (and its sequel),
> but the new QVTKOpenGLWidget fixes those issues. We are looking for
> any remaining issues, and I think need to require at least Qt 5.5 for
> some fixes to the way events are squashed (need to check as my memory
> is hazy on what release they got in).

I'm afraid that fix was abandoned for 5.5 and only landed in 5.6 :/

I'm working around it in my QVTKWidget subclass by letting Qt be the one in
charge of when Render() is called.

It would be great if some workaround could be made in VTK, such that the
requirement wouldn't have to be bumped all the way to 5.6, since it's not
in official repos for LTS distros like Ubuntu 16.04.


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