[kepler-dev] Adding actors to the workflow programmatically

[R.P.Mciver at cs.cardiff.ac.uk]

Thanks for the help guys, think I get the gist of it now.

One further question relating to this - in a similar way, what is the  
functionality that actually connects two actors together? Does this  
work through the LinkModel class, I'm guessing it's a similar  
situation to dropping the actor into a model in that a change request  
is used?

Thanks again,

Russell


Quoting Christopher Brooks <cxh at eecs.berkeley.edu>:

> Hi R.P.,
>
> If you have a model, then you can instantiate the actor into
> the model with the constructor for the actor that takes a container.
> However, you need to handle actor name duplication issues yourself.
>
> The biggest problem is that undo/redo will not work, since undo/redo
> uses ChangeRequests.
>
> This also gets into configurations, effigies and tableaux.  See
> the following classes ptolemy.actor.gui: Configuration, Effigy,
> Tableau.
>
> Ptolemy models can be described in MoML, Java and Tcl.  For examples
> of models in Java, see the .java classes in ptolemy/domains/*/demo/*,
> for example
> sdf/demo/Butterfly/Butterfly.java
> or
> ct/demo/Helicopter/Helicopter.java
>
> _Christopher
>
> Edward writes:
> --------
>
>
>     When you drag an actor in, the outline of what happens is:
>
>       actor = the selected actor in the library;
>       String xml = actor.exportMoML();
>       model = the composite actor being edited.
>       MoMLChangeRequest request = new MoMLChangeRequest(..., xml, ...);
>       model.requestChange(request);
>
>     I.e., a MoML description of the actor to drop in is obtained,
>     and a change request is used to insert that MoML into the model.
>
>     Edward
>
>
>     At 04:05 AM 1/10/2008, R.P.Mciver at cs.cardiff.ac.uk wrote:
>     >Hi,
>     >
>     >I've been playing about with trying to add Actors to a workflow in a
>     >manner different to dragging them from the tree of those available,
>     >however I've not been having much luck!
>     >
>     >I was wondering if anyone could tell me what code is actually executed
>     >when the user drags an entity from the tree onto the workflow? And is
>     >there a simple "addEntity" command that could be used to add an actor
>     >to an existing workflow?
>     >
>     >Thanks in advance to anyone who can help!
>     >
>     >Russell
>     >
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