I realized I made an error in the reference to the unneeded hook below:

On Tue, 2004-03-16 at 15:06, Ken Causey wrote:
> I'm exploring the possibility of game development with Squeak and while
> wanting to leverage the power that Morphic provides I need some
> additional leverage in the drawing order.  In particular I need to be
> able to specify drawing before and after submorph drawing occurs.
> 
> My initial naive assumption was that I could do something like the
> following:
> 
> MyMorph>>drawOn: aCanvas
> 	"Incorrect assumptions here"
> 
> 	"Do before-submorphs drawing here"
> 
> 	"Submorph drawing"
> 	super drawOn: aCanvas
> 	
> 	"Do after-submorphs drawing here"
> 
> Quick tests showed that I was wrong and that submorph drawing was
> occurring after drawOn: was called and returned.  I wrestled with trying
> to work out the actual drawing order until I realized that a debugging
> stack would be helpful (duh) and I decided on this method which seems to
> work:
> 
> MyMorph>>fullDrawOn: aCanvas
> 	"This works I think"
> 
> 	"Do before-submorphs drawing here"
> 
> 	"Draw submorphs"
> 	super fullDrawOn: aCanvas
> 
> 	"Do after-submorphs drawing here"
> 
> In reality the "after-submorphs drawing" hook here is pointless as you
> can just do that in your normal drawOn: which will be called by Morph
> fullDrawOn:.

This should say 'In reality the "before-submorphs drawing" hook here is
pointless' because MyMorph>>drawOn: is called before submorph drawing
occurs.  Sorry for the confusion.

> 
> Just thought I would pass this on to others and solicit comments.  Also
> with any luck when I forget this in 6 months the search terms I'm
> inclined to use will find this email. ;)
> 
> Ken
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