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[Zest] All the nodes are in the upper left corner - please help [message #638846]

Fri, 12 November 2010 13:23

Eclipse User

I am using a Zest GraphViewer, with a ContentProvider and LabelProvider and set my layout to RadialLayout. Everything displays fine the first time.

However, when I update the underlying model the ContentProvider gets notified and then calls refresh on the GraphView.

When it re-displays, all the nodes are in the upper left corner, on top of each other.

Any ideas why this is happening?

Thanks in advance,
Bill

Re: [Zest] All the nodes are in the upper left corner - please help [message #642315 is a reply to message #638846]

Tue, 30 November 2010 13:52

Eclipse User

You have to call applyLayout() on your GraphViewer reference. I use this helper method to refresh my UI after a model change occured.

private void updateGraph()  {
    this.viewer.refresh();
    this.viewer.applyLayout();
}

All new nodes move (nicely animated) from the upper left corner to their final position.

Johan

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