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Custom layout at diagram creation [message #233632]

Mon, 15 June 2009 09:24

Esteban Dugueperoux

Messages: 472
Registered: July 2009

Senior Member

Hi,

I wish to layout my nodes in a TopDown Layout, I create a diagram with
default model elements in createInitialModel() method and create
equivalent nodes with ViewService.createDiagram() and
ViewService.createNode(),
Then I initialize bounds of my nodes using the following code :

Iterator entityNodeIterator = diagram.getChildren().iterator();;
int xMargin = 10;
int yMargin = 10;
int yCurrent = yMargin;
while(entityNodeIterator.hasNext()){
Node entityNode = (Node) entityNodeIterator.next();
Bounds bounds = (Bounds) entityNode.getLayoutConstraint();
bounds.setX(xMargin);
bounds.setY(yCurrent);
yCurrent += bounds.getHeight()+yMargin;
entityNode.setLayoutConstraint(bounds);
}

but my problem is that bounds.getHeight() == -1,

How can I initialize my node size to correct value depending of their
content?

Thanks.

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Re: Custom layout at diagram creation [message #233674 is a reply to message #233632]

Mon, 15 June 2009 10:38

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Esteban,

If bounds.getHeight() == -1 then Figure.getPreferredSize() method will be
used to determine diagram node height (same with width).
You can either use same logic or set height/width by your own code.

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

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Re: Custom layout at diagram creation [message #233722 is a reply to message #233674]

Mon, 15 June 2009 14:35

Esteban Dugueperoux

Messages: 472
Registered: July 2009

Senior Member

Alex Shatalin a écrit :
> Hello Esteban,
>
> If bounds.getHeight() == -1 then Figure.getPreferredSize() method will
> be used to determine diagram node height (same with width).
> You can either use same logic or set height/width by your own code.
>
> -----------------
> Alex Shatalin
>
>
Hi Alex,

How can I get node's figures from my node while edit parts exist only
after diagram opening?

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Re: Custom layout at diagram creation [message #233737 is a reply to message #233722]

Mon, 15 June 2009 14:46

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Esteban,

> How can I get node's figures from my node while edit parts exist only
> after diagram opening?
You have to .. open the diagram. ;-) Then you can execute custom layout code
using positions os actual figures.

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

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