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Sync OpenBSD patchset 396:

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Use absolute movement if right at the end of the line as it isn't a reliable
place to move from relatively.
This commit is contained in:
Tiago Cunha 2009-10-15 01:34:28 +00:00
parent 44fd6f4381
commit 9e4a3d50f0
1 changed files with 6 additions and 3 deletions
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9
tty.c
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@ -1,4 +1,4 @@
/* $Id: tty.c,v 1.146 2009-10-15 01:33:21 tcunha Exp $ */
/* $Id: tty.c,v 1.147 2009-10-15 01:34:28 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -950,14 +950,16 @@ tty_cursor(struct tty *tty, u_int cx, u_int cy)
cx = tty->sx - 1;
thisx = tty->cx;
if (thisx > tty->sx - 1)
thisx = tty->sx - 1;
thisy = tty->cy;
/* No change. */
if (cx == thisx && cy == thisy)
return;
/* Very end of the line, just use absolute movement. */
if (thisx > tty->sx - 1)
goto absolute;
/* Move to home position (0, 0). */
if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
tty_putcode(tty, TTYC_HOME);
@ -1048,6 +1050,7 @@ tty_cursor(struct tty *tty, u_int cx, u_int cy)
}
}
absolute:
/* Absolute movement. */
tty_putcode2(tty, TTYC_CUP, cy, cx);