What Morph to Use?
Alan Kay
Alan.Kay at disney.com
Fri Mar 2 12:49:46 UTC 2001
Dan --
If you get an etoy viewer on any Morph, add an instance variable
(the default type is numeric) and get a "simple watcher" from the
"dot menu" in from of the variable's tiles, you will have what you
need.
Cheers,
Alan
------
At 1:00 AM -0800 3/2/01, Dan Shafer wrote:
>I thought it would be fun to see if I could create a counter with
>three buttons
>and a readout. (The one I used in my early Smalltalk books and that has been
>done and re-done lots of times.) But I wanted to see if I could do it entirely
>with direct manipulation of Morphs.
>
>The problem is I can't find a built-in Morph that displays a numeric value and
>understands how to add to and subtract from itself. I know how to do this with
>a bit of textual scripting using TextMorph or StringMorph but other
>promising-sounding Morphs (like the tantalizing UpdatingStringMorph)
>don't seem
>to work.
>
>I know I could create such a Morph and I will if that's the best way to
>approach this but I was sort of hoping to use this as a Tutorial and if the
>user has to build a new Morph as a part of the construction, it's not going to
>seem very entry-level.
>
>Thoughts?
>
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