[PATCH 1/1] Cygwin: console: Add workaround for windows xterm compatible mode bug.
Corinna Vinschen
corinna-cygwin@cygwin.com
Mon Aug 12 15:14:00 GMT 2019
On Aug 12 22:47, Takashi Yano wrote:
> - The horizontal tab positions are broken after resizing console window.
> This seems to be a bug of xterm compatible mode of windows console.
> This workaround fixes this problem.
> ---
> winsup/cygwin/fhandler_console.cc | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc
> index 075593523..3d26a0b90 100644
> --- a/winsup/cygwin/fhandler_console.cc
> +++ b/winsup/cygwin/fhandler_console.cc
> @@ -326,6 +326,25 @@ fhandler_console::send_winch_maybe ()
> {
> con.scroll_region.Top = 0;
> con.scroll_region.Bottom = -1;
> + if (wincap.has_con_24bit_colors ())
> + {
> + /* Workaround for a bug of windows xterm compatible mode. */
> + /* The horizontal tab positions are broken after resize. */
> + DWORD dwLen;
> + CONSOLE_SCREEN_BUFFER_INFO sbi;
> + GetConsoleScreenBufferInfo (get_output_handle (), &sbi);
> + /* Clear all horizontal tabs */
> + WriteConsole (get_output_handle (), "\033[3g", 4, &dwLen, 0);
> + /* Set horizontal tabs */
> + for (int col=8; col<con.dwWinSize.X; col+=8)
> + {
> + char buf[32];
> + __small_sprintf (buf, "\033[%d;%dH\033H", 1, col+1);
> + WriteConsole (get_output_handle (), buf, strlen (buf), &dwLen, 0);
> + }
> + /* Restore cursor position */
> + SetConsoleCursorPosition (get_output_handle (), sbi.dwCursorPosition);
> + }
> get_ttyp ()->kill_pgrp (SIGWINCH);
> return true;
> }
> --
> 2.21.0
Pushed.
Thanks,
Corinna
--
Corinna Vinschen
Cygwin Maintainer
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