Ned Konz wrote:
> 
> On Saturday 22 September 2001 01:40 pm, Gary McGovern wrote:
> 
> > From: "Alan Kay" <Alan.Kay at squeakland.org>
> >
> > > And also look at Balloon3D and the Alice environment to see how an
> > > environment of unlimited size can be set up. (It's pretty >easy)
> >
> > I'm really interested to make some progress on this. I've spent a couple of
> > hours with those packages and haven't come up with anything that comes
> > close Can you give a bit more away ? (I've not found it easy but it makes
> > some other things seem easy :-) ).
> 
> Hi Gary,
> 
> I'm no Morphic expert, and don't know about Balloon3D or Alice, but it's
> pretty easy to make a Morph that can produce the behavior you want.
Looking at the stuff you have done, I would say you are _very_ close
to be an expert :-)
> You need to properly handle reporting transformFrom: and drawing (and
> clipping).
> 
> If you look at TransformMorph, all the positioning behavior you want
> is right there. Try this in a workspace:
> 
> t _ TransformMorph new position: 200 at 200; extent: 200 at 200; openInWorld.
> t addMorph: (RectangleMorph new position: 0 at 0; color: Color red).
> t addMorph: (RectangleMorph new position: 200 at 200).
> t offset: 100 at 100.
> t offset: 0 at 0.
> t extent: 300 at 300
> t delete
> 
> However, TransformMorph probably doesn't do what you want in terms of user
> interaction. You could subclass it and make it react properly to mouse clicks
> (i.e. like PasteUpMorph does).
> 
> Or maybe better, you could subclass PasteUpMorph to do translation. Look at
> (for instance) GeeBookPageMorph.

For a side note, have you looked at the Self implementation of
morphic where the desktop is a endlessly big in 2 dimentions
and you move around to diffrent stuff/ projects.

Karl