[Cuis-dev] For Test: Layouts + EdgeWeight

[ken.dickey at whidbey.com]

On 2020-05-29 01:56, Dan Norton wrote:
..
> 
> I'm trying to simplify an example where a collection of small elipses
> is not appearing when fed to LayoutMorph>>addAllMorphs: ...


Something deeper going on here.

In many #addMorph* methods there are Morph>>privateAdd* methods which do 
the work and at the end:

   self someSubmorphPositionOrExtentChanged

the default implementation of which is (for Morph)

   layoutNeeded := true

This should cause the LayoutMorph to do a #layoutSubmorphs.

One can override the add*Morph* methods as the attached, which will 
probably remove the symptom, but we really need to understand why 
setting #layoutNeeded to true does not trigger 
LayoutMorph>>layoutSubmorphs.

Juan?  Anyone?

??
-KenD
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