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EMF Command for parent child [message #900022]

Fri, 03 August 2012 13:36

Tom Bauwens

Messages: 10
Registered: May 2012

Junior Member

Hi,

Is there an emf command that I can use to move a child from a parent object (eContainer) to another parent?

I can easily do this directly on the model: parent.eList.remove() and then newParent.eList.add(), but I was told not to directly edit the model in this way. Instead, I should always use emf commands.

Thanks for your help.

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Re: EMF Command for parent child [message #900053 is a reply to message #900022]

Fri, 03 August 2012 17:01

Tim Schaefer

Messages: 49
Registered: June 2011
Location: Marburg, Germany

Member

Hi,

you can use AddCommand. You only need to add the object to the new parent, it will automatically be removed from its old parent's container list.

Regards,
Tim

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Re: EMF Command for parent child [message #900061 is a reply to message #900053]

Fri, 03 August 2012 17:59

Ed Merks

Messages: 33133
Registered: July 2009

Senior Member

Tim,

It will be automatically removed, because the model does that, but if
you undo, it won't be put back because the AddCommand doesn't know about
the removal. So you have to compose a RemoveCommand and an AddCommand.

On 03/08/2012 7:01 PM, Tim Schaefer wrote:
> Hi,
>
> you can use AddCommand. You only need to add the object to the new
> parent, it will automatically be removed from its old parent's
> container list.
>
> Regards,
> Tim

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF Command for parent child [message #900067 is a reply to message #900061]

Fri, 03 August 2012 19:19

Tim Schaefer

Messages: 49
Registered: June 2011
Location: Marburg, Germany

Member

Oh, right, sorry. Fore some reason I thought AddCommand would remember the old container.

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Re: EMF Command for parent child [message #900111 is a reply to message #900067]

Sat, 04 August 2012 06:39

Tom Bauwens

Messages: 10
Registered: May 2012

Junior Member

Hi guys,

Thanks a lot for your answers.
I have put the RemoveCommand and the AddCommand inside a CompoundCommand such that they are executed together when doing undo/redo. Works like a charm Smile

Grtz,
Tom

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