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Arrange that explicit visual bells performed using ESC[?5h and

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ESC[?5l in immediate succession will still give a visibly long flash
of the screen.

[originally from svn r1086]
This commit is contained in:
Simon Tatham 2001-04-28 14:39:16 +00:00
parent 580cde3fde
commit 9525da2826
1 changed files with 18 additions and 0 deletions
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18
terminal.c
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@ -96,6 +96,7 @@ static int insert; /* insert-mode flag */
static int cset; /* 0 or 1: which char set */
static int save_cset, save_csattr; /* saved with cursor position */
static int rvideo; /* global reverse video flag */
static int rvbell_timeout; /* for explicit (ESC[?5hESC[?5l) vbell */
static int cursor_on; /* cursor enabled flag */
static int reset_132; /* Flag ESC c resets to 80 cols */
static int use_bce; /* Use Background coloured erase */
@ -671,6 +672,7 @@ static void insch (int n) {
* whether the mode is a DEC private one or a normal one.)
*/
static void toggle_mode (int mode, int query, int state) {
long ticks;
if (query) switch (mode) {
case 1: /* application cursor keys */
app_cursor_keys = state;
@ -684,6 +686,22 @@ static void toggle_mode (int mode, int query, int state) {
reset_132 = state;
break;
case 5: /* reverse video */
/*
* Toggle reverse video. If we receive an OFF within the
* visual bell timeout period after an ON, we trigger an
* effective visual bell, so that ESC[?5hESC[?5l will
* always be an actually _visible_ visual bell.
*/
ticks = GetTickCount();
if (rvideo && !state && /* we're turning it off */
ticks < rvbell_timeout) { /* and it's not long since it was turned on */
in_vbell = TRUE; /* we may clear rvideo but we set in_vbell */
if (vbell_timeout < rvbell_timeout) /* don't move vbell end forward */
vbell_timeout = rvbell_timeout; /* vbell end is at least then */
} else if (!rvideo && state) {
/* This is an ON, so we notice the time and save it. */
rvbell_timeout = ticks + VBELL_TIMEOUT;
}
rvideo = state;
seen_disp_event = TRUE;
if (state) term_update();