The Jira I filed is at:

https://javafx-jira.kenai.com/browse/RT-34850

The slight difference is that I applied the stylesheet on the scene 
instead of the button.


Neil



From:   Jerome Cambon <jerome.cam...@oracle.com>
To:     openjfx-dev@openjdk.java.net
Date:   12/12/2013 04:26 AM
Subject:        Re: Reloading stylesheets
Sent by:        openjfx-dev-boun...@openjdk.java.net



This is also impacting Scene Builder.

I have filed a Jira with a test case:
https://javafx-jira.kenai.com/browse/RT-34863

Jerome

On 12/11/13 6:19 PM, David Grieve wrote:
> There is clearly a bug there somewhere. Would you mind filing an issue 
on javafx-jira.kenai.com?
>
> On Dec 11, 2013, at 11:51 AM, ngalarn...@abinitio.com wrote:
>
>> Hi David,
>>
>> I have stylesheet SWITCHING working fine. I can switch between 2 
different
>> stylesheets on disk without tearing down & rebuilding my Scene. To do 
this
>> I simply do:
>>         scene.stylesheets.clear()
>>         scene.stylesheets.add(differentStylesheet)
>> and the changes show up immediately (I'm assuming those 2 lines cause a
>> .css recalculation & a pulse).
>>
>> I would like to get stylesheet RELOADING to work in my JavaFX 8 app. By
>> this I mean picking up changes in a single .css file. This would allow 
the
>> developers to tweak the stylesheet & reload to see the effects
>> immediately.
>>
>> Unfortunately, it feels like the Filename of the stylesheet is the Key 
in
>> a cache that isn't getting cleared by my code above. Nothing visible
>> happens when I do:
>>         scene.stylesheets.clear()
>>         scene.stylesheets.add(sameStylesheet)
>>
>> Given your description below, my impression is that RELOADING should 
also
>> work...
>>
>> Thank you for any suggestions,
>>
>> Neil
>>
>>
>>
>>
>> From:   David Grieve <david.gri...@oracle.com>
>> To:     Werner Lehmann <lehm...@media-interactive.de>
>> Cc:     openjfx-dev@openjdk.java.net
>> Date:   12/10/2013 11:10 AM
>> Subject:        Re: Reloading stylesheets
>> Sent by:        openjfx-dev-boun...@openjdk.java.net
>>
>>
>>
>> The way it works in 8.0 is that there is a cache of loaded stylesheets.
>> When a scene or parent adds a stylesheet, the stylesheet is added to 
the
>> cache. Any other scene or parent that uses the same stylesheet will get
>> the one from cache. If a scene or parent later removes the stylesheet, 
the
>> stylesheet is removed from the cache and the css style cache for any 
scene
>> or parent that referenced that stylesheet is cleared (since the set of
>> styles may have changed). Any scene or parent that referenced the now
>> removed stylesheet is told to reapply its styles. Since the stylesheet 
is
>> no longer in cache, it will be re-parsed (or reloaded if there is a 
binary
>> version of the stylesheet) when it is called for by a scene or parent.
>>
>> The way it worked in 2.x was an abomination.
>>
>> On Dec 10, 2013, at 10:30 AM, Werner Lehmann
>> <lehm...@media-interactive.de> wrote:
>>
>>> Interesting. Assuming the stylesheets are still cached, how would it
>> know when to reload and not use the cached sheet? Or has sheet 
processing
>> been optimized so much that caching is not necessary anymore...
>>> On 10.12.2013 16:15, Tom Schindl wrote:
>>>> No on FX8 you need to remove and readd them! So the only thing
>> different
>>>> is that you omit the reload-call on FX8.
>>
>>
>>
>>
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