From: Eero Saynatkari <ruby-ml@...>
Date: 2006-09-28T07:41:30+09:00
Subject: Re: Curses

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On 2006.09.28 07:35, Eero Saynatkari wrote:
> On 2006.09.28 07:30, Michael W. Ryder wrote:
> > Eero Saynatkari wrote:
> > >On 2006.09.28 04:25, Michael W. Ryder wrote:
> > >>Eero Saynatkari wrote:
> > >>>On 2006.09.27 15:45, Michael W. Ryder wrote:
> > >>>>Eero Saynatkari wrote:
> > >>>>>On 2006.09.27 10:35, Michael W. Ryder wrote:
> > >>>>>>Overdorf, Sam wrote:
> > >>>>>>>Is anyone using the Curses class?
> > >>>>>>>Is anyone maintaining the Curses class?
> > >>>>>>>
> > >>>>>>>It looks like the Curses function move(y,x) is calling the wrong=
=20
> > >>>>>>>library
> > >>>>>>>routine.
> > >>>>>>>
> > >>>>>>>It is calling the window move function and not the cursor positi=
oning
> > >>>>>>>function.
> > >>>>>>>
> > >>>>>>>Thanks,
> > >>>>>>>Sam Overdorf
> > >>>>>>>
> > >>>>>>According to O'Reilly's Programming with Curses "move() is really=
 a=20
> > >>>>>>#define macro for wmove() which takes a WINDOW* as its first=20
> > >>>>>>argument" So it appears that the library is working correctly.
> > >>>>>#setpos x, y
> > >>>>What flavor of Curses is this from?
> > >>>This one:
> > >>>
> > >>> http://www.ruby-doc.org/stdlib/libdoc/curses/rdoc/classes/Curses.ht=
ml
> > >>
> > >>The source code shows that it uses Curses' move() function which is a=
=20
> > >>macro to wmove() as I described above.
> > >
> > >No, move() moves the cursor (wmove() moves a specified window's cursor=
).
> > >
> > >Confusingly, Ruby's Curses bindings also have a .move which actually
> > >uses mvwin() which moves the window itself.
> >=20
> > ALL input/output in Curses is done with windows.  The only difference=
=20
> > between move() and wmove() is that move() passes the current window to=
=20
> > the wmove() function.  When you first start Curses it creates a window=
=20
> > and sets it as the current window.  Unless you create another window an=
d=20
> > change to it this window is used for all I/O.
>=20
> Which is exactly what I said. Please review the Curses documentation.
>=20
>   http://www.die.net/doc/linux/man/man3/move.3.html
>   http://www.die.net/doc/linux/man/man3/mvwin.3.html
=20
And yes, Ruby's Curses.move is not the same as move(). Curses.move
is the same as mvwin(). Curses.setpos is the same as move().



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