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Cygwin: console: Call fix_tab_position() only if having broken tabs. 

- Calling fix_tab_position() is necessary in Windows 10 with xterm
  compatible mode enabled, because it has a problem that the tab
  positions will be broken when the window size is changed. Fortunately,
  this problem has been fixed in Windows 11. Therefore, with this patch,
  necessity of fix_tab_position() call is determined by referring to
  wincap.has_con_broken_tabs(), which is recently introduced.
This commit is contained in:
Takashi Yano 2022-02-17 00:34:40 +09:00
parent 29d8a83008
commit fc26624377
1 changed files with 5 additions and 3 deletions
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8
winsup/cygwin/fhandler_console.cc
View File

@ -286,7 +286,8 @@ fhandler_console::cons_master_thread (handle_set_t *p, tty *ttyp)
{ {
con.scroll_region.Top = 0; con.scroll_region.Top = 0;
con.scroll_region.Bottom = -1; con.scroll_region.Bottom = -1;
if (wincap.has_con_24bit_colors () && !con_is_legacy) if (wincap.has_con_24bit_colors () && !con_is_legacy
&& wincap.has_con_broken_tabs ())
fix_tab_position (p->output_handle); fix_tab_position (p->output_handle);
ttyp->kill_pgrp (SIGWINCH); ttyp->kill_pgrp (SIGWINCH);
} }
@ -664,7 +665,8 @@ fhandler_console::send_winch_maybe ()
{ {
con.scroll_region.Top = 0; con.scroll_region.Top = 0;
con.scroll_region.Bottom = -1; con.scroll_region.Bottom = -1;
if (wincap.has_con_24bit_colors () && !con_is_legacy) if (wincap.has_con_24bit_colors () && !con_is_legacy
&& wincap.has_con_broken_tabs ())
fix_tab_position (get_output_handle ()); fix_tab_position (get_output_handle ());
get_ttyp ()->kill_pgrp (SIGWINCH); get_ttyp ()->kill_pgrp (SIGWINCH);
return true; return true;
@ -2321,7 +2323,7 @@ fhandler_console::char_command (char c)
if (con.args[i] == 1049) if (con.args[i] == 1049)
{ {
con.screen_alternated = (c == 'h'); con.screen_alternated = (c == 'h');
need_fix_tab_position = true; need_fix_tab_position = wincap.has_con_broken_tabs ();
} }
if (con.args[i] == 1) /* DECCKM */ if (con.args[i] == 1) /* DECCKM */
con.cursor_key_app_mode = (c == 'h'); con.cursor_key_app_mode = (c == 'h');