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Moving Elements [message #212055]

Fri, 17 March 2006 12:25

Eclipse User

Originally posted by: news.goodbyte.de

Hi,

I'm new to GEF and try to move some elements around in my diagram. I do
have an EditPart for the diagram and an EditPart for the element type
I'd like to move around. I can add the element to the diagram, but I
cannot move it around. What can be wrong?

Tia,
Benjamin

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Re: Moving Elements [message #212073 is a reply to message #212055]

Fri, 17 March 2006 13:56

Thomas Maier

Messages: 117
Registered: July 2009

Senior Member

Benjamin Lippelt schrieb:
> Hi,
>
> I'm new to GEF and try to move some elements around in my diagram. I do
> have an EditPart for the diagram and an EditPart for the element type
> I'd like to move around. I can add the element to the diagram, but I
> cannot move it around. What can be wrong?
>
> Tia,
> Benjamin

Hi Benjamin,

have a look at the shapes example. Look at DiagramEditPart. This
installs a layout edit policy:

installEditPolicy(EditPolicy.LAYOUT_ROLE,
new ShapesXYLayoutEditPolicy());

This edit policy implements

protected Command createChangeConstraintCommand(...)

and returns a ShapeSetConstraintCommand that finally modifies the
shape's bounds.

HTH, Thomas.

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