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Fix screen and cursor flickering #201

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Fix screen and cursor flickering #201

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8 changes: 8 additions & 0 deletions src/tty.c
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Original file line number Diff line number Diff line change
Expand Up @@ -160,6 +160,14 @@ void tty_setwrap(tty_t *tty) {
tty_printf(tty, "%c%c?7h", 0x1b, '[');
}

void tty_hidecursor(tty_t *tty) {
tty_printf(tty, "\x1b[" "?25l");
}

void tty_showcursor(tty_t *tty) {
tty_printf(tty, "\x1b[" "?25h");
}

void tty_newline(tty_t *tty) {
tty_printf(tty, "%c%cK\n", 0x1b, '[');
}
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3 changes: 3 additions & 0 deletions src/tty.h
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,9 @@ void tty_setnormal(tty_t *tty);
void tty_setnowrap(tty_t *tty);
void tty_setwrap(tty_t *tty);

void tty_hidecursor(tty_t *tty);
void tty_showcursor(tty_t *tty);

#define TTY_COLOR_BLACK 0
#define TTY_COLOR_RED 1
#define TTY_COLOR_GREEN 2
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4 changes: 3 additions & 1 deletion src/tty_interface.c
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,7 @@ static void draw(tty_interface_t *state) {
}
}

tty_hidecursor(tty);
tty_setcol(tty, 0);
tty_printf(tty, "%s%s", options->prompt, state->search);
tty_clearline(tty);
Expand All @@ -102,11 +103,11 @@ static void draw(tty_interface_t *state) {

for (size_t i = start; i < start + num_lines; i++) {
tty_printf(tty, "\n");
tty_clearline(tty);
const char *choice = choices_get(choices, i);
if (choice) {
draw_match(state, choice, i == choices->selection);
}
tty_clearline(tty);
}

if (num_lines + options->show_info)
Expand All @@ -117,6 +118,7 @@ static void draw(tty_interface_t *state) {
for (size_t i = 0; i < state->cursor; i++)
fputc(state->search[i], tty->fout);
tty_flush(tty);
tty_showcursor(tty);
}

static void update_search(tty_interface_t *state) {
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