[vtk-developers] Fractional DPI scaling not supported by QVTKOpenGLWidget?

[Elvis Stansvik]

Err I mean QT_SCREEN_SCALE_FACTORS="1.4" of course.

Den 9 feb. 2018 6:03 em skrev "Elvis Stansvik" <elvis.stansvik at orexplore.com
>:

> Den 9 feb. 2018 5:56 em skrev "Marcus D. Hanwell" <
> marcus.hanwell at kitware.com>:
>
> On Fri, Feb 9, 2018 at 10:58 AM, Elvis Stansvik <
> elvis.stansvik at orexplore.com> wrote:
>
>> 2018-02-09 15:24 GMT+01:00 Cory Quammen <cory.quammen at kitware.com>:
>> > Elvis,
>> >
>> > I don't believe there is a reason we can't use the qreal version of
>> > devicePixelRatioF(). I think the F may have gotten dropped in a series
>> of
>> > commits to improve DPI support.
>> >
>> > A patch would be welcome.
>>
>> Great, I'll take a stab at it.
>>
>> I know for my part I had hoped to work with the fractional API, but only
> had real examples using integer values. So the real-world examples drove
> the testing/development we did as we were getting this working in Tomviz.
> It would be great to collect some examples of non-integer situations we
> might do some verification on.
>
>
> A simple test for this specific issue I think would be to simply create a
> QVTKOpenGLWidget with e.g. QT_AUTO_SCREEN_SCALE_FACTOR="1.4" in the
> environment (assuming the test runs on screen 0) and check that the
> vtkWindow has the correct size.
>
> Elvis
>
>
>
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