Re: Simultaneous qt and wxt terms (was Re: Proposal: Saving graphs from Qt and wxt terminals)

[Bastian M. <bma...@we...>]

Am 25.10.2014 um 19:46 schrieb Daniel J Sebald:
> On 10/25/2014 03:40 AM, Daniel J Sebald wrote:
>
>> I removed the interlock test and it creates quite a mess with invalid
>> events, seg faults in bad library calls, to scratch the surface.
>>
>> Investigating a bit, I think the problem lies in the fact wxt terminal
>> is not in its own process.
>
> It's too much work to do this in an afternoon or so.  Having looked at
> the code, though, I'd say some things get simplified when WXT is run in
> its own process as an outboard plotter.  All these sorts of conditions
>
> #if defined(WXT_MONOTHREADED) || defined(_Windows)
>
> go away.
>
> Dan

Btw. Timothée had been working on this years ago, see patch #380
https://sourceforge.net/p/gnuplot/patches/380

Also, the qt and wxt terminals run nicely in the same session on 
Windows. It just took some effort to make qt->waitforinput() work.

Since waitforinput() is a terminal routine it typically only handles 
events from the library the current terminal uses. If we want to use 
multiple libraries in the same process, we need to replace/extend that 
mechanism.

 From my experience with the (outboard) qt terminal, I sincerely doubt 
that moving the wxt terminal to its own process will significantly 
simplify the source.

   Bastian