[kepler-dev] D&D Canvas Question

[Matt Jones]

Actually, I'm quite sure we use the existing Ptolemy DnD mechanism 
(unless you changed how I did it Rod).  I intentionally used the 
existing Ptolemy drag and drop when I originally implemented the data 
source drag -- mainly by subclassing properly which gave us the 
functionality without having to implement anything special.

Matt

Edward A Lee wrote:
> 
> Hmm... Then you've completely changed the drag and drop
> mechanism, so I have no idea how it works...
> 
> Note that the original mechanism was carefully architected
> so that you could safely drop an object onto an executing model...
> It does this using a MoMLChangeRequest.
> 
> Edward
> 
> At 10:04 AM 9/14/2004 -0500, Rod Spears wrote:
> 
>> Our data source objects have already been constructed prior to 
>> dropping them onto the canvas, so when they are dropped their icon and 
>> location changes, but a new one is not constructed.
>>
>> Rod
>>
>>
>> Edward A Lee wrote:
>>
>>> At 06:18 PM 9/13/2004 -0500, Rod Spears wrote:
>>>
>>>> Is there a notification to "actor" when it is dropped onto the 
>>>> canvas (from the lefthand panel)?
>>>>
>>>> I see several differ attributes getting changed....(like _location, 
>>>> _icon, etc).
>>>>
>>>> Thanks,
>>>> Rod
>>>
>>>
>>> When it is dropped, the actor is constructed from a MoML description.
>>> Its constructor is called with the container and name as an argument...
>>> So there is no pre-existing actor to "notify"...
>>>
>>> Edward
>>>
>>>
>>> ------------
>>> Edward A. Lee, Professor
>>> 518 Cory Hall, UC Berkeley, Berkeley, CA 94720
>>> phone: 510-642-0455, fax: 510-642-2739
>>> <mailto:eal at eecs.Berkeley.EDU>eal at eecs.Berkeley.EDU, 
>>> http://ptolemy.eecs.berkeley.edu/~eal
>>
>>
>>
>> -- 
>> Rod Spears
>> Biodiversity Research Center
>> University of Kansas
>> 1345 Jayhawk Boulevard
>> Lawrence, KS 66045, USA
>> Tel: 785 864-4082, Fax: 785 864-5335
>> _______________________________________________ kepler-dev mailing 
>> list kepler-dev at ecoinformatics.org 
>> http://www.ecoinformatics.org/mailman/listinfo/kepler-dev
> 
> 
> ------------
> Edward A. Lee, Professor
> 518 Cory Hall, UC Berkeley, Berkeley, CA 94720
> phone: 510-642-0455, fax: 510-642-2739
> eal at eecs.Berkeley.EDU, http://ptolemy.eecs.berkeley.edu/~eal
> 
> _______________________________________________
> kepler-dev mailing list
> kepler-dev at ecoinformatics.org
> http://www.ecoinformatics.org/mailman/listinfo/kepler-dev

-- 
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Matt Jones                                     jones at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Fax: 425-920-2439    Ph: 907-789-0496
National Center for Ecological Analysis and Synthesis (NCEAS)
University of California Santa Barbara
Interested in ecological informatics? http://www.ecoinformatics.org
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