Re: Patch for line draw characters problem & screen scrolling

[Christopher Faylor <cgf at redhat dot com>]

On Wed, May 21, 2003 at 01:06:36PM -0400, Igor Pechtchanski wrote:
>On Wed, 21 May 2003, Christopher Faylor wrote:
>> On Wed, May 21, 2003 at 05:32:33PM +0200, Micha Nelissen wrote:
>> >Several problems encountered and tried to fix:
>> >* fhandler_console.cc (write_normal): end of buffer check enables cursor to be
>> >out of range; it better emulates *nix terminal behaviour; ie. it is now
>> >possible to write a single character at right bottom of console buffer without
>> >the console scrolling the buffer.
>>
>> How is this similar to UNIX?  If I do a:
>>
>> sleep 5; echo hello
>>
>> and then scroll my xterm up, xterm scrolls down when hello is printed.  It
>> sounds like your patch would not cause this to happen.
>
>This behavior is controlled, at least in an xterm, by the "Scroll to
>Bottom on Tty Output" resource.  In the Windows console, no such control
>is available, and it does scroll to bottom on output (just verified that).
>I think that's what Micha is trying to fix...  Please correct me if I'm
>wrong.
>
>Micha, if the above is correct, you'll probably want to introduce some
>sort of control that will let users switch back and forth, according to
>their preferences.

Yep.  This is similar to the other "just jump to first line of scroll region"
change.  You can't change the default behavior like this without providing
a method for controlling it.  Maybe xterm has some sort of escape sequence
for controlling this behavior which could be emulated in cygwin.

FWIW, I *like* the scroll to bottom behavior.

cgf