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Disallow certain Edit Part to be drop to a Contanier [message #69004]

Mon, 10 March 2003 16:50

yinglcs

Messages: 64
Registered: July 2009

Member

Hi,
Is it possible to disallow certain Edit Part to be drop to a Container? If
yes, could you please tell me how to achieve that?

e.g. I would like to change the Circuit to allow user to drop a AND gate
figure, but NOT a OR gate figure. It will show a Stop sign icon when I
select a OR GATE figure and move it over to Circuit and when I move the
cursor to a other container (e.g. Flow Container), it should a Drop icon and
I can add the OR gate to the Flow Container?

Thanks

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Re: Disallow certain Edit Part to be drop to a Contanier [message #69071 is a reply to message #69004]

Mon, 10 March 2003 18:29

Eclipse User

Originally posted by: none.us.ibm.com

> Hi,
> Is it possible to disallow certain Edit Part to be drop to a Container? If
> yes, could you please tell me how to achieve that?

Yes, your layout editpolicy would override either getTarget(Request), if you
want that container to not be targeted, or getCommand(Request), if you want
the container to be targeted, but you want to return an UnexecutableCommand
to get the NOT sign..

> e.g. I would like to change the Circuit to allow user to drop a AND gate
> figure, but NOT a OR gate figure. It will show a Stop sign icon when I
> select a OR GATE figure and move it over to Circuit and when I move the
> cursor to a other container (e.g. Flow Container), it should a Drop icon
and
> I can add the OR gate to the Flow Container?
>
> Thanks

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