[vtkusers] Question key conversion in QVTKRenderWindowInteractor.keyPressEvent

[David Gobbi]

On Thu, Jun 16, 2016 at 6:32 AM, Elvis Stansvik <
elvis.stansvik at orexplore.com> wrote:

> 2016-06-16 14:12 GMT+02:00 David Gobbi <david.gobbi at gmail.com>:
>
>> Hi Elvis,
>>
>> The commit logs might hold the answers to some of your questions.
>>
>> Here's the history line for when QVTKRenderWindowInteractor.py was
>> created:
>>
>> https://gitlab.kitware.com/vtk/vtk/commits/720b580c/Wrapping/Python/vtk/qt/QVTKRenderWindowInteractor.py
>>
>> The history continues here:
>>
>> https://gitlab.kitware.com/vtk/vtk/commits/3f70e5ff/Wrapping/Python/vtk/qt4/QVTKRenderWindowInteractor.py
>>
>> And finally comes to the present:
>>
>> https://gitlab.kitware.com/vtk/vtk/commits/master/Wrapping/Python/vtk/qt/QVTKRenderWindowInteractor.py
>>
>> Also, here is some pre-history:
>>
>> https://gitlab.kitware.com/vtk/vtk/commits/bae05540/Wrapping/Python/QVTKRenderWidget.py
>> https://gitlab.kitware.com/vtk/vtk/tree/5b48ce33/Wrapping/Python
>>
>>
> Thanks for the pointers, but it seems the code was like that when the Qt 4
> variant was initially contributed by Phil Thomson:
>
>
> https://gitlab.kitware.com/vtk/vtk/commit/720b580c32b1ab002572fa59d796e409b5b0c346
>

Wrong.  You might need to practice your detective skills some more :)

https://gitlab.kitware.com/vtk/vtk/commit/0ab4f15f

But even if we forget about history/origin, doesn't it seem strange to use
> str(ev.text()) in the keyPressEvent?
>

Yes, it seems strange, but there might be a reason.  You'll have to
experiment with Qt to see what str(ev.text()) and chr(ev.key()) return
under various situations.

 - David
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