Re: Deprecate fltk graphics toolkit?

[John W. Eaton]

On 11/08/2017 12:50 PM, Daniel J Sebald wrote:

> You are asking the right questions.  I did a prototype years ago that 
> removed the callback approach.  It used signal/slot on the GUI side of 
> things, but without Qt code in Octave core proper.

I agree that this is a better way to go.  I believe this is also how the 
Octave interpreter currently communicates with the Qt graphics code.

For example, see the way that drawnow (DEV, FILE) calls the graphics 
toolkit's print_figure function.  For Qt, the print_figure function uses 
a signal (sentPrint) and slot (slotPrint) connection to do this job.

I would like to fix this for the other parts of the GUI as well.

jwe