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How to modify a position attribute in real time? [message #665281]

Thu, 14 April 2011 02:36

Eclipse User

Hi,

I'm beginner in GMF and I have to modify an attribute "position" (x/y) in a node in real time (every time we change object's position)
The problem is that I don't know where I have to put the code to do that ='(

Can you help me please?

Thanks,
Fenrir

Re: How to modify a position attribute in real time? [message #665295 is a reply to message #665281]

Thu, 14 April 2011 04:17

Eclipse User

Hello,

Find the edit part for that node. In the edit part, add this method:

protected void handleNotificationEvent(Notification notification) {
		super.handleNotificationEvent(notification);
          ..... my code here
  }

Check when your desired event occurs (the position modification, for instance) and execute your code.
You will probably need to create and execute a Command in order to change the value of your attribute.

Good Luck,

emil salageanu
www.activeeon.com

Re: How to modify a position attribute in real time? [message #665357 is a reply to message #665295]

Thu, 14 April 2011 08:37

Eclipse User

It works!

Thank you very much for your reply. =)

Re: How to modify a position attribute in real time? [message #665723 is a reply to message #665357]

Fri, 15 April 2011 11:40

Eclipse User

Hi Fenrir,

I'm beginner in GMF and I have the same problem of the position, can you please give me the code that you put in the method "protected void handleNotificationEvent (Notification notification)"

I need your help.

Thanks,
Rahma.

Re: How to modify a position attribute in real time? [message #665918 is a reply to message #665723]

Mon, 18 April 2011 03:29

Eclipse User

Here is the code I included, the problem is that the position which is read is the element's last position (it's late of one movement)

//********************************************************** *****************
Point rect = this.getAbsoluteLocation(this);

BigInteger big1 = new BigInteger(""+rect.x);
BigInteger big2 = new BigInteger(""+rect.y);
EList<BigInteger> activation = new BasicEList<BigInteger>();
activation.add(big1);
activation.add(big2);
((ComponentImpl)this.getNotationView().getElement()).setActi vation_node(activation);

//********************************************************** ******************
I know this code isn't a must, but that's what I have to do^^

(sorry for the bad english)

Fenrir

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