d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Make libncurses catch SIGWINCH and update the values for LINES and COLS.

Browse Source 
I was perplexed when an example I'd written to show the values for these
variables changing as an xterm window was resized didn't work, and looking
into it I see that size tracking for LINES and COLS seems to be one SVR4
enhancement which didn't come across with libncurses.
This commit is contained in:
jkh 1996-08-15 21:06:52 +00:00
parent 950ac9c810
commit 4d444750e2
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
lib/libncurses/lib_newterm.c
View File

@ -31,6 +31,17 @@ static void cleanup(int sig)
exit(1);
}
static void
size_change(int sig)
{
struct ttysize ws;
if (ioctl(0, TIOCGSIZE, &ws) == -1)
return;
LINES = ws.ts_lines;
COLS = ws.ts_cols;
}
WINDOW *stdscr, *curscr, *newscr;
SCREEN *SP;
@ -130,6 +141,10 @@ char *use_it = _ncurses_copyright;
act.sa_flags = 0;
sigaction(SIGINT, &act, NULL);
sigaction(SIGTERM, &act, NULL);
act.sa_handler = size_change;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
sigaction(SIGWINCH, &act, NULL);
#if 0
sigaction(SIGSEGV, &act, NULL);
#endif