[Users] RadioButtonMixin and custom TreeNodeUI

[Dan Ramage]

Andreas,

Thanks for the response. I've looked at tree.html and see that it extends
the LayerNodeUI, and then in the loaders baseAttrs uses the radioGroup and
the uiProvider. When I implemented the radio button and check box, this was
under GeoExt v0.6, I only set the radioGroup, this was with a nodeType of
gx_layercontainer.

Thanks,

Dan

-----Original Message-----
From: Andreas Hocevar [mailto:ahocevar at opengeo.org] 
Sent: Wednesday, July 21, 2010 12:19 PM
To: Dan Ramage
Cc: users at geoext.org
Subject: Re: [Users] RadioButtonMixin and custom TreeNodeUI


On Jul 21, 2010, at 18:04 , Dan Ramage wrote:

> Is the RadioButtonMixin class currently being used in the latest release?
> I've been trying to understand how to create a tree node with a slider for
> opacity, so I've been looking at how the radio button was implemented. The
> example I originally followed simply added the radioGroup: 'foo' to the
> loader configuration when building the nodes. The only place I could find
> radioGroup referenced was the RadioButtonMixin, but I can't seem to find
> where/how RadioButtonMixin is instantiated.

Look at http://dev.geoext.org/trunk/geoext/examples/tree.html

There are two ways to have a radio button. RadioButtonMixin is only used if
you want a radio button in addition to the checkbox. This is done with the
custom LayerNodeUI in the above example. When using radioGroup, which is
implemented in GeoExt.tree.LayerNodeUI, the ui is only modified to replace
the checkbox with a radio button.

But if you want to know how to change the UI of layer nodes, digging into
some of the patches found in http://trac.geoext.org/ticket/139 might help.

Regards,
Andreas.

> 
> 
> Thanks for any pointers,
> 
> 
> Dan
> 
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-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.