Anthony Petrov wrote:
Hello 2D and AWT teams,
While working on the fix for 6783411 to enable re-parenting heavyweight
components between toplevel windows, I found the Component.checkGD()
method which verifies equality of GraphicsDevice's (by the way, a minor
question: is it correct to check the equality of the GD (or GC) objects
themselves rather than using their StringID's?). There's also an
Yes, it is better to check the instances. The GC is re-created
on every display change, GDs may be added/removed as well
(depending on what kind of event happend).
implementation of this method in the Container class that recursively
calls this method for every child of the container.
The question is: is it really possible for one toplevel to contain
components having different GraphicsDevice's (and/or different
GraphicsConfiguration's)? Or may I assume that all and every descendant
components of a toplevel window use the same GC that the window uses
(and therefore the Container.checkGD() may safely be removed)?
We should enforce that all components within a toplevel have the
same GC. If checkGD does that I wouldn't remove it.
Thanks,
Dmitri
