[kepler-dev] Actor Parameter question

Chad Berkley berkley at nceas.ucsb.edu
Mon Oct 15 13:07:59 PDT 2007

Hi Eric,

If I understand you right, you just want to change the editor in the 
configuration window, right?  If so, you'll want to extend 
ptolemy.actor.gui.style.ParameterEditorStyle.  Once you have a new style 
of editor widget, you can then set the "style" attribute on any moml 
parameter to use your new editor.  If you want an example, search the 
actor library for any actor that uses one of the styles in 
ptolemy.actor.gui.style.  For instance, there are several that use the 
FileChooser style to allow a user to select a file path into a 
StringAttribute.  Instead of creating your own style, one of the 
existing styles may work for what you want (possibly ChoiceStyle?).

If that's confusing, login to IRC and I can explain further.


Eric Magaha wrote:
> Hi,
> I would like to create a Parameter on one of my custom actor that is 
> similar to ColorAttribute (ptolemy.actor.gui.ColorAttribute).  But I 
> want to be able to pick string items from a list in the dialog box that 
> will be shown.
> I looked at ColorAttribute class and I have no idea how Query class 
> (ptolemy.gui.Query) gets called.  ColorAttribute class is pretty simple.
> To sum up, I want a parameter that holds an ArrayType that can open a 
> dialog box where I can select string from a swing list object.
> Is that possible?
> Thanks,
> Eric
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