ToolBuilder, PlusTools and Namespaces

Andreas Raab andreas.raab at gmx.de
Thu Feb 8 23:54:07 UTC 2007


Michael van der Gulik wrote:
> - It appears that the Morphic tree widget from ToolBuilder doesn't 
> support drag and drop yet. Is this correct? Is there a version out there 
> of ToolBuilder with a Morphic tree widget that supports drag and drop, 
> or is this something I'll have to fix up?

The latest version at http://squeaksource.com/ToolBuilder should support 
drag and drop.

> - ToolBuilder uses a lot of configurable method callbacks: when 
> constructing a UI, the constructor specifies which methods on the model 
> respond to which events. Was it ever considered to hard-code these 
> method names so that the model *must* implement them, or subclass 
> something which does? Arguably that would make code more readable - it 
> is guaranteed that a method of a particular name implements that 
> particular callback making the callback easier to find.

Wouldn't that mean you can only have a single widget of each type per 
model? What would happen (for example) to browsers which utilize four 
lists out of the box?

Cheers,
   - Andreas



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