[plt-scheme] mixin macro for classes?

You want (class->interface pasteboard%), I believe.

Robby

On Jan 30, 2004, at 3:49 PM, Bruce Hauman wrote:

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>
> Hey everyone,
>
> I have would to write a set mixins for the pasteboard class using the 
> mixin macro.
>
>
> (define snapping-pasteboard-mixin
>   (mixin (?some-interface-that-doesn't-exist?)
> 	 (?an-interface-of-some-sort?)
>       (rename (super-interactive-adjust-move interactive-adjust-move))
>       (override interactive-adjust-move)
>       (define (interactive-adjust-move snip box-x box-y)
>         'more-will-go-hear
>         (super-interactive-adjust-move snip box-x box-y))))
>
> (define snap-pasteboard% (snapping-pasteboard-mixin pasteboard%))
>
> The key problem being that interactive-adjust-move is not in any
> interface that I am aware of.
>
> Is this possible/desirable?  Do I have to define my own interfaces for 
> the pasteboard% class in order to do this?
>
> Or should I just write a simpler version of mixin?
>
> Thanks,
> Bruce
>
>
-------
SII(SII)
&
((lambda (x) (x x)) (lambda (x) (x x)))