On 2006-01-26, Bram Moolenaar <[EMAIL PROTECTED]> wrote:
> Zdenek Sekera wrote:
>
> > > >> Example for an xterm, this changes the color of the cursor: >
> > > >> if &term =~ "xterm"
> > > >> let &t_SI = "\<Esc>]12;purple\x7"
> > > >> let &t_EI = "\<Esc>]12;blue\x7"
> > > >> endif
> > > >> NOTE: When Vim exits the shape for Normal mode will
> > > remain. The shape
> > > >> from before Vim started will not be restored.
> > > >> {not available when compiled without the +cursorshape feature}
> > > >
> > > > And is there a way to have it restored?
> > ...
> > > I don't know. My guess (but it's only a guess) is: if you know what
> > > codes to send to set that default, try using these codes in an ":echo"
> > > statement at the VimLeave autocomand event.
> >
> > I don't know the codes, unfortunately, but the idea of using VimLeave
> > is interesting. And why it's not done automatically in vim is perhaps
> > because there is no way to guarantee it can be done generically for
> > any terminal emulator. Bram?
>
> The reason it can't be restored is that Vim doesn't know what the
> original color was.
>
> > Does anyone know what codes need to be sent to at
> > least xterm to have the cursor shape/color restored on vim exit?
>
> As far as I know it's impossible, there doesn't appear a way to obtain
> the cursor color that is in use when Vim is started.
(I'm catching up on some old unread list e-mail.)
According to the ctlseqs.ms document that came with xterm-165:
Operating System Controls
OSC Ps ; Pt ST
OSC Ps ; Pt BEL
Set Text Parameters. For colors and font, if Pt is a
"?", the control sequence elicits a response which con-
sists of the control sequence which would set the
corresponding value. ....
...
Ps = 1 2 -> Change colors starting with text cursor to
Pt
I executed this command at a Linux shell prompt,
echo -e '\033]12;?\007' ; read x
and got the following response:
^[]12;rgb:ffff/ffff/ffff^G
After setting the cursor to red and repeating the command, I got
this:
^[]12;rgb:ffff/0000/0000^G
So, xterm does have the mechanism to obtain the cursor color when
vim is started. I just don't know how to obtain the terminal's
response from within vim and don't have the time to experiment
further at the moment. I did discover, though, that you can echo
back the color in that same format, so no parsing of the terminal
response would be necessary.
HTH,
Gary
--
Gary Johnson | Agilent Technologies
[EMAIL PROTECTED] | Wireless Division
| Spokane, Washington, USA
