Indeed.
Thanks for the pointer.
This is long time ago that I look at tweak.

Stef
On Feb 9, 2008, at 10:02 PM, Bert Freudenberg wrote:

> On Feb 9, 2008, at 6:52 , Igor Stasenko wrote:
>
>> it's really hard to tell what properties morphs can be kept as  
>> basic(core) ones.
>> Dimenstions(shape)? No. There is morphs which never show-up on screen
>> and therefore don't need any dimension/shape info.
>> Visual aspects? Again - no. Depending on morph, they can be very
>> different, including colors, borders or font style for text.
>>
>> So, maybe, i thought, better to think of morph as composition of
>> different traits, which in sum defining an original morph.
>
> Tweak does something similar, its graphical objects are composed of  
> "aspects", for example "fill", "border", "geometry" etc.:
>
> http://tweakproject.org/TECHNOLOGY/Documentation/
>
> The current implementation uses delegation rather than Traits,  
> though. There is a gazillion of delegation methods in the base  
> object, possibly Traits would allow the structure to be more  
> explicit ...
>
> - Bert -
>
>
>