Image viewer plugin, refreshing low and high values of the slider widget

[Adam Hughes]

Oddly enough, I figured out how to do this yesterday for traitsui.  Check 
out my answer to this question on stack overflow:

http://stackoverflow.com/questions/9956167/change-property-parameter-from-within-class-constructor-python-traits/28286878#28286878

I adapted the DynamicRange trait from an old example floating around from 
Jonathan March. 

PS, Steven, our group has spent considerable time getting complex GUI's 
with IPython widgets together.  I put a video of one online a few months 
ago:

http://hugadams.github.io/scikit-spectra/

I can link you to the source code if you're interested, as we found that 
the IPython widget framework had a fair learning curve in regard to 
sophisticated apps.  Having some far-along examples really helps, so let me 
know if you'd like to see some of them.

On Monday, February 2, 2015 at 4:03:15 AM UTC-5, Marcel Gutsche wrote:
>
> Hi folks, 
>
> another image viewer plugin related question. Is it possible to update the 
> low and high values of the slider widget based on the return values of 
> plugin function? 
>
> E.g something like this?
>
> custom_plugin = Plugin(image_filter = calc_and_show)
> custom_plugin += Slider('parameter1', low = calc_and_show.lower_bound(), 
> high = calc_and_show.upper_bound() )
>
> Thanks for the great support so far!
>
> Marcel
>
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