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how to reposition Node Figrues by opening the diagram?! [message #492550]

Tue, 20 October 2009 13:39

Eclipse User

Hi!

i'm a rookie in GMF and i'm on the edge of despair...i hope you can help me with the following problem Confused

i would like to reposition special figures when the diagram is opened by the first time. therefore i created my own edit part (eg MyEditPart) which inherits from the generated edit part.

My next thought was to provide a layout and binding that layout to MyEditPart. So, in my layout class i have access to the instance which is bound. however, when i try to set the new location there is no result on the diagramm...

i have no idea...it would be great if you give me a hint!

regards edd

Re: how to reposition Node Figrues by opening the diagram?! [message #492691 is a reply to message #492550]

Wed, 21 October 2009 08:27

Eclipse User

You have to create a ChangeBoundsRequest and send it to the editPart you want to change the bounds (location and size). Something like that:

EditPart ep = ...
ChangeBoundsRequest cbr = new ChangeBoundsRequest();
cbr.setEditParts(ep);
cbr.setLocation(new Point(x, y));
cbr.setMoveDelta(new Point(x, y));
cbr.setSizeDelta(new Dimension(width, heigh));
ep.getCommand(cbr);

What you need is to change only the location, so the moveDelta and sizeDelta should leave in blank.

Good Luck Wink

Marc

Re: how to reposition Node Figrues by opening the diagram?! [message #492802 is a reply to message #492691]

Wed, 21 October 2009 14:33

Eclipse User

hi marc!

thx for your answer. i tried your suggestion but without a result...
i added the the code to my own layout class, is this the right place?!

is it enough to call the xxx.getCommand(..) without executing that command?

thanks, edd

Re: how to reposition Node Figrues by opening the diagram?! [message #495063 is a reply to message #492550]

Tue, 03 November 2009 11:59

Eclipse User

Hello deflow,

You have to modify positions of the corresponding notation model element
instead of EditPart directly.
Use AbstractTransactionalCommand + Node.getLayoutConstraint() to specity
size/location of the diagram elements.

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

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