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How to notify a Composite if a new child control has been created?
The reason: by default, for the StackLayout no child is shown. I want to ensure that the first control which is added to our StackLayoutComposite (which is a Composite with set StackLayout and a few other helper methods) is shown by default. Currently, I solved it by overriding StackLayout‘s layout method, but this looks ugly in my eyes.
If you want to re-layout the parent
Compositebased on the new child and any associated layout data, just usecomposite.layout(true);…If you want to be notified by the parent that the widget hierarchy has been changed, then you’re out of luck… The closest you can get, is to add a SWT filter to the display and wait for a
SWT.Resizeevent for a previously unknown child… I have done this is a project, but I have to admit that the code gets a bit ugly as you have to monitor for disposal as well…