cocos2d/cocos2d-iphone — pull request #122 by kstenerud (2011-11-01 17:20:20+00:00)
Title: Allow CCNode to notify its parent when it changes size or scale

In order to make container nodes able to intelligently respond to changes in its children, there needs to be a callback mechanism for the child to notify the parent of a change.

An example would be a grid which resizes itself to accomodate changes in its children and maintain spacing.