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How to avoid overlapping of shapes [message #935633]

Sun, 07 October 2012 02:34

Eclipse User

Hello ,

I want to avoid overlapping of Container shapes (top containers)in the diagram.

if container shape is same size or greater size, then the behind shape is completely invisible.

How can I do this?

Advance thanks for your response.

Thanks,
Vijaya Raghava Rao

Re: How to avoid overlapping of shapes [message #936983 is a reply to message #935633]

Mon, 08 October 2012 10:41

Eclipse User

Hi,

you would need to write your own move feature for that shape and return
false in canMove in case the move operation shall not be allowed because
another shape would be hidden.

Michael

Re: How to avoid overlapping of shapes [message #1014599 is a reply to message #936983]

Tue, 26 February 2013 01:04

Eclipse User

Hi,

I tried to write my own move shape feature.but how can i find that while moving to new location already another shape is existing. Ican try some overlapping algorithams but it will become performance issue for each move.
Is there any other way to find the existing shapes on diagram for specified location.

Advance thanks for your reply.

Thanks,
Raghav

Re: How to avoid overlapping of shapes [message #1014649 is a reply to message #1014599]

Tue, 26 February 2013 03:06

Eclipse User

Raghav,

there is GEF functionality for that. The getGraphicalViewer on DiagramEditor
offers a findObjectAt method that should help with that. It returns an GEF
EditPart, but maybe that's ok in your case?

Michael

Re: How to avoid overlapping of shapes [message #1014757 is a reply to message #1014649]

Tue, 26 February 2013 07:01

Eclipse User

Hello Michael,

is there any plan to restrict the over lapping of shapes in graphiti in future versions.

Thanks,
Raghav

Re: How to avoid overlapping of shapes [message #1015591 is a reply to message #1014757]

Fri, 01 March 2013 05:10

Eclipse User

Raghav,

no, there are no plans in this respect. As I wrote in Buzilla
https://bugs.eclipse.org/bugs/show_bug.cgi?id=401996 , this should not be
handled generically in the framework but should be done by clients in case
they need to.

Michael

Re: How to avoid overlapping of shapes [message #1058157 is a reply to message #1015591]

Sun, 12 May 2013 13:58

Eclipse User

Please see my blog post regarding this issue. (I still have fewer than 5 messages, that is why I can't post links yet, but you can find the blog here:
eclipsegraphiti.blogspot.de/2013/05/how-to-avoid-overlapping-of-shapes.html

Dragan

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