Quoting Michael Latta <lattam at mac.com>:

> I am seeing odd behavior.  I have a morph (subclass of NCBasicShape 
> from Connectors) with no layout policy, and a size set.  When I drop a 
> morph into it, the morph resizes to just enclose the submorph.  So a 
> morph that is 100 at 200 receives a morph at 20 at 100 that is 10 at 10 and is 
> resized to 30 at 110.  Without a layout policy should it not retain its 
> size?
> 
> I have not yet found what method is being used to change the size of 
> the morph.  It is not bounds:, extent: nor privateBounds: as far as I 
> can tell so far.
> 
> Michael
> 
> 
> 


Trygve's #traceRM:levels: tool (the third in the BabySRE package) can help you
to more easily find out about these things. 

Basically you put in commands like
  self doOnlyOnce: [self traceRM: self levels: 50]
into the code to analyze.

See his paper for more details.

Even without  #traceRM:levels: you can use #doOnlyOnce: . It is in ProtoObject
and can be reset with:

self rearmOneShot


Hannes