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Need some EditPolicy related help [message #210527]

Thu, 06 November 2008 07:42

Eclipse User

Originally posted by: manojm.blr.interrasystems.com

Hi! All,

I have used DnD feature for dragging an element from treeviewer to
GMF editor.
When drop is occuring on rectangular figure (inside editor), i want to
create another child rectangular figure in it.

Could you please suggest - how to do that? Which EditPolicy should I
install?
If possible, please provide some code snippet.

Regards,
Manoj

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Re: Need some EditPolicy related help [message #210577 is a reply to message #210527]

Thu, 06 November 2008 11:46

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Manoj,

Try to handling D&D request for this particular child figure. You have to
install DiagramDragDropEditPolicy inside corresponding XXXEditPart.createDefaultEditPolicies()
method and handle drop request there. As an example you can use XXEditPart
generated for the diagram element - it has corresponding EditPolicy generated,
but you have to completely modify getDropObjectsCommand() to return a command
creating "copy" of the element being dropped.

-----------------
Alex Shatalin

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Re: Need some EditPolicy related help [message #210600 is a reply to message #210577]

Thu, 06 November 2008 12:44

Eclipse User

Originally posted by: manojm.blr.interrasystems.com

Thanks Alex,

Regards,
Manoj

Alex Shatalin wrote:
> Hello Manoj,
>
> Try to handling D&D request for this particular child figure. You have
> to install DiagramDragDropEditPolicy inside corresponding
> XXXEditPart.createDefaultEditPolicies() method and handle drop request
> there. As an example you can use XXEditPart generated for the diagram
> element - it has corresponding EditPolicy generated, but you have to
> completely modify getDropObjectsCommand() to return a command creating
> "copy" of the element being dropped.
>
> -----------------
> Alex Shatalin
>
>

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Re: Need some EditPolicy related help [message #210663 is a reply to message #210577]

Fri, 07 November 2008 04:30

Eclipse User

Originally posted by: manojm.blr.interrasystems.com

Hi! Alex,

Could you please provide some code snippet or any reference to the same?

Regards,
Manoj

Alex Shatalin wrote:
> Hello Manoj,
>
> Try to handling D&D request for this particular child figure. You have
> to install DiagramDragDropEditPolicy inside corresponding
> XXXEditPart.createDefaultEditPolicies() method and handle drop request
> there. As an example you can use XXEditPart generated for the diagram
> element - it has corresponding EditPolicy generated, but you have to
> completely modify getDropObjectsCommand() to return a command creating
> "copy" of the element being dropped.
>
> -----------------
> Alex Shatalin
>
>

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Re: Need some EditPolicy related help [message #210789 is a reply to message #210663]

Mon, 10 November 2008 11:41

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Manoj,

> Could you please provide some code snippet or any reference to the
> same?
Did you seen XXXEditPart.createDefaultEditPolicies() for the diagram EditPart
generated by GMF? You have to generate diagram code with shortcuts feature
enabled and then you’ll see examples of necessary code there.

-----------------
Alex Shatalin

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