[squeak-dev] New version BabyIDE + report

Trygve Reenskaug wrote:

I just posted a new version of the BabyIDE report and Squeak image.
I post an image rather then a Montizello loadable file because it is just a demo.
I am working on a small application all done in BabyIDE.
I'll post a Monticello file (BabyIDE.alpha.0)as soon as this work is completed.

I looked at the IDE and tried to find out how the different shapes got selected in a sequence, but I got lost.
Are the roles bound before the animation starts or how is it set up ?

Karl

I found much of what you describe after some deeper exploration. This
new way of writing and presenting takes a little time getting used to
:-)

I like the way you can add in and out super classes in the browser.

Karl


On 9/14/08, Trygve Reenskaug [hidden email] wrote:
  

Hi Karl,
Every role has a similarly named method in the context class. This
method returns the object that shall be bound to the role. E.g.:

¤   Shapes4ArrowsCtx >>Shape1
¤       ^data anyShape

The different shapes (and arrows) are found in a runtime dictionary that
that is filled when the context class is instantiated:

¤   Shapes4ArrowsCtx >>bindRolesToObjects
¤       | messName |
¤       self class roleNames
¤           do: [:rNam |
¤               messName := rNam asString asSymbol.
¤               roleMap
¤                   at: messName
¤                   put: (self
¤                           perform: messName
¤                           ifNotUnderstood: [])].
¤       ^ roleMap

 The idea is that a programmer need to understand this, but should not
need to understand the details of how it is done. (To see the details,
look at these methods:
    Shapes4Env>>startArrowAnimation
    Shapes4ArrowsCtx  class>>executeInContext:
    Shapes4ArrowsCtx >>on:env:
    Shapes4ArrowsCtx >>bindRolesToObjects

I hope it answers your question.

The above is the current implementation.  I believe there is much room
for simplification that should emerge when I write a tutorial. (Much
better to rewrite the code than to try its complexities).

Chers
--Trygve


On 14.09.2008 16:25, Karl Ramberg wrote:
    

Trygve Reenskaug wrote:
      

I just posted a new version of the BabyIDE report and Squeak image.
I post an image rather then a Montizello loadable file because it is
just a demo.
I am working on a small application all done in BabyIDE.
I'll post a Monticello file (BabyIDE.alpha.0)as soon as this work is
completed.
        

I looked at the IDE and tried to find out how the different shapes got
selected in a sequence, but I got lost.
Are the roles bound before the animation starts or how is it set up ?

Karl


      

--

Trygve Reenskaug       mailto: [hidden email]

Morgedalsvn. 5A         http://heim.ifi.uio.no/~trygver

N-0378 Oslo               Tel: (+47) 22 49 57 27

Norway