Workaound is to use #nextPutAll: then do a show: '' when you are ready...

> -----Original Message-----
> From: squeak-dev-bounces at lists.squeakfoundation.org 
> [mailto:squeak-dev-bounces at lists.squeakfoundation.org] On 
> Behalf Of Igor Stasenko
> Sent: 09 September 2007 2:12 pm
> To: The general-purpose Squeak developers list
> Cc: Squeak's User Interface
> Subject: Transcript>>show: slowness.
> 
> 
> I know that Transcript is slow :)
> But i found more disturbing problem.
> I put 'Transcript show:' in Canvas code, for tracing 
> different drawing commands, and found that Transcript morph 
> updates itself directly after receiving this command.
> 
> So, each time you sending #show: it redraws morph window. I 
> think this is why Transcript is slow at first place. And also 
> it makes Transcript useless for tracing different drawing 
> commands ( because some of them can cause infinite recursion).
> 
> I want to ask, if someone knows, why transcript (or maybe underlaying
> morphs) designed in such manner, that it forcibly updates 
> itself on screen at each #show: message sent. And also, maybe 
> someone knows how make fast and effective fix to this? I 
> don't think that updating transcript window contents 
> immediately after something putted into it is critical. A 
> more effective would be to simply mark transcript window as 
> dirty, and then during next world update cycle is will 
> automatically get updated.
> 
> -- 
> Best regards,
> Igor Stasenko AKA sig.
>