[IPython-dev] Image Widget Persisted with Export to HTML?
Pierre Villeneuve
pierre.villeneuve at gmail.com
Thu Jul 23 22:42:39 EDT 2015
Jon,
Thanks for replying! At least now that I know there isn't an easy hack
solution, I can stop looking for it.
Pierre V. Villeneuve
On Jul 23, 2015 5:47 PM, "Jonathan Frederic" <jon.freder at gmail.com> wrote:
> Hi Pierre,
>
> Unfortunately such a thing doesn't exist right now. I'm taking note of
> your use case, for the output area work that Kyle and I will be doing, and
> the static widget work I plan on doing later.
>
> Sorry,
> Jon
>
> On Fri, Jul 10, 2015 at 6:16 PM, Pierre Villeneuve <
> pierre.villeneuve at gmail.com> wrote:
>
>> Hello all,
>>
>> First, here is the context of my question to the group: I'm currently
>> developing an image widget based on the HTML Canvas element, versus the
>> IPython built-in widget based on the Image element. For simple cases the
>> differences seen by a user may not be noticeable, but in my case I
>> specifically wish to propagate the canvas' JavaScript mouse events to
>> Python callback functions. Another difference is my widget can be
>> initialized directly from a Numpy array.
>>
>> My question applies to my canvas image widget as well as the built-in
>> image widget. When I export my notebook to HTML the widget's displayed
>> image is not present. This is the opposite behaviour from an image
>> displayed using IPython.display.Image(). I know that widgets are
>> displayed to the frontend in an area separate from the cell's standard
>> output area, and that persisting widget's is in itself a huge topic. I
>> simply want a pretty picture to survive the export to HTML.
>>
>> I'm curious to know if a near-term solution is possible whereby I might
>> temporarily replace each of my displayed widget's images with an instance
>> of IPython.display.Image(). I can mentally visualize a path to a
>> solution if only there was a place where I could define a callback function
>> to be called just prior to HTML export. Does sch a thing exist?
>>
>> Pierre
>>
>> *Pierre Villeneuve*
>> pierre.villeneuve at gmail.com
>>
>>
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>>
>
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