[squeak-dev] singleton?
Joseph T. Bore
jbore at tjtech.com
Thu Apr 10 03:41:27 UTC 2008
I would like to implement the following behavior, but im not sure how
to accomplish it:
a method called plot, when its called, it would either create a new
PlotMorph or if one is already on screen, re-use the existing plot
morph.
I have the plot code working, but i cant figure out how to re-use the
existing morph.
Im guessing a class side method that enforces a singleton via a class
variable? but when i destroy the morph, how do i have it clear out
that variable so that subsequent calls will create a new one.
its very possible im coming at this entirely wrong, so feel free to
make other suggestions for the implementation.
thanks in advance.
jb
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