[Gambas-devel] Fwd: Re: gb.ncurses feedback?

[Benoît Minisini]

-------- Message original --------
Sujet: Re: gb.ncurses feedback?
Date : Sat, 14 Apr 2012 00:21:43 +0200
De : Benoît Minisini <gambas at ...1...>
Pour : tobi <tobias at ...692...>

Le 13/04/2012 23:44, tobi a écrit :
> Hi Benoît,
>
> still collecting bugs? ;)
> Since you wanted to inspect the code, am I to expect a short feedback (an "OK" would do in the
> best case)?
> Writing an application to demonstrate the Window class I felt that the class needs some more stuff,
> so it was extended and it's really time to know if it is well enough coded to continue or rewrite.
>
> Regards,
> Tobi
>
>

I have just committed some little changes:

- I centralize the NCurses initialization and uninitialization in two
routines.

- I replaced the REFRESH() macro by a function that checks that the
library has not been unitialized. Otherwise calling NCurses refresh
routines after endwin() does strange things to the terminal.

- I added an interpreter "error hook" that calls endwin(), so that the
error message is printed by the interpreter on a clean terminal.

So that you can install the SIGWINCH signal correctly, I will add to the
interpreter API the needed calls to the interpreter routines that will
do that for you.

Then you will need to create a pipe. The signal handler will write to
the pipe, and you will watch the pipe output and raise event from there.

Only an object can raise event. I think the Window object that is
actually the screen will raise the Resize event when the SIGWINCH signal
is received.

If you want a window to raise a Read event when a key is pressed, you
just have to watch the standard input *once*, and then send the event
from the currently focused window. You don't need to change the watch
callback!

Beware that the standard input is automatically watched by the
interpreter if the user defined a global Application_Read function in
the startup class. Your callback will replace it, and the
Application_Read function will never be called.

I will have other remarks about the function and properties name for
sure! :-)

Regards,

-- 
Benoît Minisini