[Drawkit] Keeping a drawing tool selected

[Graham Cox]

Hi Uli,

For now I've just removed this behaviour, and leave it up to the app  
to control it as they wish, which is straightforward in this case.

I agree that delegation could be a good way to solve this, and  
probably a number of other situations too, but in the interests of  
keeping things simple I've avoided adding arbitrary delegation to  
classes for sundry decision-making until I get feedback about what's  
really needed. One reason for that is because of MacZoop - you may  
dimly recall a class called ZModifier that was a sort of delegation  
object. It almost never got used, implemented things arbitrarily and  
was probably more maintenance than it was worth.

I do expect delegation to gradually evolve in a few places in DK  
though, as needs are flagged up.

cheers, Graham


On 11 Jul 2008, at 3:13 am, Uli Kusterer wrote:

> On 10.07.2008, at 04:22, Graham Cox wrote:
>> Currently, if you set the "Select" tool, it turns this setting back  
>> on. While that reflects a common usage it's probably not very  
>> general - I'll think about how that should be resolved. Anyway you  
>> might want to keep setting this flag to NO each time you set a tool  
>> to work around this. You can see an example of this in the simple  
>> demo.
>
>
> Sounds like a job for a delegate method - 
> (BOOL)drawingTool:shouldRevertToTool: (DKTool**)ioTool or so. This  
> one would also allow the delegate to specify an alternate tool to  
> revert to.
>
> Cheers,
> -- Uli Kusterer
> "The Witnesses of TeachText are everywhere..."
> http://www.zathras.de
>
>
>
>
>
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