Re: found the problem with resizing windows

[Folkert van Heusden]

my guess is that resizeterm doesn't (always?) update stdscr settings

On Thu, 22 Jul 2004, Thomas Dickey wrote:

> Date: Thu, 22 Jul 2004 14:48:35 -0400 (EDT)
> From: Thomas Dickey <address@hidden>
> To: Folkert van Heusden <address@hidden>
> Cc: address@hidden
> Subject: Re: found the problem with resizing windows
>
> On Thu, 22 Jul 2004, Folkert van Heusden wrote:
>
> > Hmmm, newwin() is not an option as it seems to clear the whole terminal.
>
> newwin() shouldn't have to clear the terminal
> (that comment sounds familiar).
>
> for the rest - I'll have to look into what's not being done properly
> for derwin().
>
> > Anyone a suggestion for resolving this problem?
> >
> > On Thu, 22 Jul 2004, Folkert van Heusden wrote:
> >
> > > Date: Thu, 22 Jul 2004 20:12:23 +0200 (CEST)
> > > From: Folkert van Heusden <address@hidden>
> > > To: address@hidden
> > > Subject: found the problem with resizing windows
> > >
> > > At last!
> > > I found the problem with resizing sometimes failing!
> > > I always used subwin(stdscr, ...) for creating windows and it seems that
> > > when resizing very quick the internal variables are not always updated
> > > correctly. I added extensive logging to ncurses and found that:
> > >
> > > derwin: too large, max_y/x: 33x91, actual: 36x91
> > >
> > > this means: the caller tries to create a window of 36x91 while the stdscr 
> > > is
> > > still known to be 33x91.
> > >
> > > NCURSES_EXPORT(WINDOW *)
> > > derwin(WINDOW *orig, int num_lines, int num_columns, int begy, int begx)
> > > ...
> > >     /*
> > >      * make sure window fits inside the original one
> > >      */
> > >     if (begy < 0 || begx < 0 || orig == 0 || num_lines < 0 || num_columns 
> > > <
> > > 0)
> > >     {
> > >         syslog(LOG_ERR, "derwin: coords/sizes out of bounds: %dx%d, %dx%d,
> > > orig: %p", num_lines, num_columns, begy, begx, orig
> > > );
> > >         returnWin(0);
> > >     }
> > >     if (begy + num_lines > orig->_maxy + 1
> > >         || begx + num_columns > orig->_maxx + 1)
> > >     {
> > >         syslog(LOG_ERR, "derwin: too large, max_y/x: %dx%d, actual: 
> > > %dx%d",
> > > orig->_maxy + 1, orig->_maxx + 1, begy + num_lines
> > > , begx + num_columns);
> > >         returnWin(0);
> > >     }
> > > ...
> > >
> > > Not sure if it is a bug but my solution is now that I use newwin(...).
> > >
> > >
> > > Folkert van Heusden
> > >
> > > +------------------------------------------------------------------+
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> > >
> > >
> > > _______________________________________________
> > > Bug-ncurses mailing list
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> > >
> >
> >
> >
> > Folkert van Heusden
> >
> > +------------------------------------------------------------------+
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> >
> >
> >
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> >
>
> --
> Thomas E. Dickey
> http://invisible-island.net
> ftp://invisible-island.net
>



Folkert van Heusden

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