| Layouts that implement this interface are capable of caching the
sizes of child controls in a manner that allows the information
for a single control to be flushed without affecting the remaining
controls. These layouts will ignore the "changed" arguments to layout(...)
and computeSize(...), however they will flush their cache for individual
controls when the flush(...) method is called.
This allows for much more efficient layouts, since most of the cache
can be reused when a child control changes.
since:
3.0 |