Re: [chlor-develop] GrabHandTool and autoscrolling

[<chl...@li...>]

Hi,

>> just updated the GrabHandTool to make it behave a bit better.  
>> However, when moving outside the drawing area, autoscroll routine  
>> of ChlorMainView kicks in and results into a "bumpy" appearance.
>
> Noticed that, thanks. It behaves much better now.
>
>> Anyhow, I'm guessing that it would help if we could turn off  
>> autoscrolling when the GrabHandTool is active. However, I neither  
>> want to make ChlorMainView aware of the active tool, nor make it  
>> stateful - any better proposals?
>
> If autoscroll is really the problem, why not unset/set it in  
> CGrabhandTool's activate:/deactivate: methods (see CTool)? Or what  
> do you mean with "stateful"?

Autoscrolling happens via the mouseDragged method of ChlorMainView by  
an unconditional call of [self autoscroll: theEvent]. We can make  
that conditional, but then ChlorMainView would be stateful (i.e.  
autoscrolling could be switched on and off).

BTW, I just noticed something that the GrabHandTool behaves also  
interesting when the window is being moved around ...

Regrads,
	Florian