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Invoking AutoSize programmatically [message #1791833]

Thu, 05 July 2018 22:14

Parsa Pourali

Messages: 210
Registered: February 2014

Senior Member

Hello,

I have a container node which contains other nodes. When the contained nodes move, the parent container shows a scroll bar instead of resizing (expanding). I found that if the autosize has been already invoked by the user on the parent container, then it will expanded instead of showing the scrollbars (this is what I want). So, is there any way to programmatically invoke the autosize?

I tried the following on the parent container but didn't help. If this is the code, how/where/when should I use it ?
Request r = new Request(RequestConstants.REQ_autosize);
performRequest(r);

index.php/fa/33322/0/

Thanks,
Bests,
Parsa

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Re: Invoking AutoSize programmatically [message #1791847 is a reply to message #1791833]

Fri, 06 July 2018 08:19

Steve Monnier

Messages: 505
Registered: May 2011

Senior Member

Hello,

In the style of your container mapping, you need to set the "Height Computation Expression" and "Width Computation Expression" to -1 in order to be in autosize by default. You can check out the "Default size" part of the Container Style documentation [1].

Regards,
Steve

[1] https://www.eclipse.org/sirius/doc/specifier/diagrams/Diagrams.html#containers

Steve Monnier - Obeo
Need training or professional services for Sirius?
http://www.obeodesigner.com/sirius

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Re: Invoking AutoSize programmatically [message #1791878 is a reply to message #1791847]

Fri, 06 July 2018 12:33

Parsa Pourali

Messages: 210
Registered: February 2014

Senior Member

Hi Steve,

What you said is generally correct. But assume that, the user resizes the created parent container which overwrites the size of -1. Therefore, the behaviour will change. In my case, I don't want the size of -1 be overwritten when users resize the container manually.

Thanks,
Parsa

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