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Added timeout argument for getkey.

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This commit is contained in:
Bruce Hill 2020-04-18 22:47:24 -07:00
parent 5cc98b8872
commit 9c3d454c19
4 changed files with 58 additions and 48 deletions
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2
C/test.c
View File

@ -21,7 +21,7 @@ int main(void)
btui_flush(bt);
int mouse_x = -1, mouse_y = -1;
int key = btui_getkey(bt, &mouse_x, &mouse_y);
int key = btui_getkey(bt, 0, &mouse_x, &mouse_y);
btui_clear_screen(bt);
switch (key) {
case 'q': case KEY_CTRL_C: done = 1; break;

5
Lua/lbtui.c
View File

@ -66,7 +66,10 @@ static int Lbtui_getkey(lua_State *L)
if (bt == NULL) luaL_error(L, "Not a BTUI object");
if (*bt == NULL) luaL_error(L, "BTUI object not initialized");
int mouse_x = -1, mouse_y = -1;
int key = btui_getkey(*bt, &mouse_x, &mouse_y);
int isnum = 1;
int timeout = lua_gettop(L) > 1 ? lua_tointegerx(L, 2, &isnum) : -1;
if (!isnum) luaL_argerror(L, 2, "timeout should be an integer");
int key = btui_getkey(*bt, timeout, &mouse_x, &mouse_y);
if (key == -1) return 0;
char buf[256] = {0};
btui_keyname(key, buf);

2
Makefile
View File

@ -15,7 +15,7 @@ checksyntax: btui.h
clean:
@cd Lua; make clean
@cd C; make clean
@cd python; make clean
@cd Python; make clean
%: %.c btui.h
$(CC) $(CFLAGS) $(CWARN) $(G) $(O) $< -o $@

97
btui.h
View File

@ -26,7 +26,7 @@ typedef struct {
btui_t* btui_enable(void);
void btui_disable(btui_t *bt);
int btui_getkey(btui_t *bt, int *mouse_x, int *mouse_y);
int btui_getkey(btui_t *bt, int timeout, int *mouse_x, int *mouse_y);
int btui_move_cursor(btui_t *bt, int x, int y);
char *btui_keyname(int key, char *buf);
int btui_keynamed(const char *name);
@ -158,6 +158,48 @@ static keyname_t key_names[] = {
{':', "Colon"},
};
static const struct termios normal_termios = {
.c_iflag = ICRNL,
.c_oflag = OPOST | ONLCR | NL0 | CR0 | TAB0 | BS0 | VT0 | FF0,
.c_lflag = ISIG | ICANON | IEXTEN | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE,
.c_cflag = CS8 | CREAD,
.c_cc[VINTR] = '',
.c_cc[VQUIT] = '',
.c_cc[VERASE] = 127,
.c_cc[VKILL] = '',
.c_cc[VEOF] = '',
.c_cc[VSTART] = '',
.c_cc[VSTOP] = '',
.c_cc[VSUSP] = '',
.c_cc[VREPRINT] = '',
.c_cc[VWERASE] = '',
.c_cc[VLNEXT] = '',
.c_cc[VDISCARD] = '',
.c_cc[VMIN] = 1,
.c_cc[VTIME] = 0,
};
static struct termios tui_termios = {
.c_iflag = 0,
.c_oflag = ONLCR | NL0 | CR0 | TAB0 | BS0 | VT0 | FF0,
.c_lflag = ECHOE | ECHOK | ECHOCTL | ECHOKE,
.c_cflag = CS8 | CREAD,
.c_cc[VINTR] = '',
.c_cc[VQUIT] = '',
.c_cc[VERASE] = 127,
.c_cc[VKILL] = '',
.c_cc[VEOF] = '',
.c_cc[VSTART] = '',
.c_cc[VSTOP] = '',
.c_cc[VSUSP] = '',
.c_cc[VREPRINT] = '',
.c_cc[VWERASE] = '',
.c_cc[VLNEXT] = '',
.c_cc[VDISCARD] = '',
.c_cc[VMIN] = 1,
.c_cc[VTIME] = 0,
};
static inline int nextchar(int fd)
{
char c;
@ -176,8 +218,16 @@ static inline int nextnum(int fd, int c, int *n)
* If mouse_x or mouse_y are non-null and a mouse event occurs, they will be
* set to the position of the mouse (0-indexed).
*/
int btui_getkey(btui_t *bt, int *mouse_x, int *mouse_y)
int btui_getkey(btui_t *bt, int timeout, int *mouse_x, int *mouse_y)
{
int new_vmin = timeout < 0 ? 1 : 0, new_vtime = timeout < 0 ? 0 : timeout;
if (new_vmin != tui_termios.c_cc[VMIN] || new_vtime != tui_termios.c_cc[VTIME]) {
tui_termios.c_cc[VMIN] = new_vmin;
tui_termios.c_cc[VTIME] = new_vtime;
if (tcsetattr(fileno(bt->out), TCSANOW, &tui_termios) == -1)
return -1;
}
if (mouse_x) *mouse_x = -1;
if (mouse_y) *mouse_y = -1;
int fd = fileno(bt->in);
@ -366,49 +416,6 @@ int btui_keynamed(const char *name)
return strlen(name) == 1 ? name[0] : -1;
}
static const struct termios normal_termios = {
.c_iflag = ICRNL,
.c_oflag = OPOST | ONLCR | NL0 | CR0 | TAB0 | BS0 | VT0 | FF0,
.c_lflag = ISIG | ICANON | IEXTEN | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE,
.c_cflag = CS8 | CREAD,
.c_cc[VINTR] = '',
.c_cc[VQUIT] = '',
.c_cc[VERASE] = 127,
.c_cc[VKILL] = '',
.c_cc[VEOF] = '',
.c_cc[VSTART] = '',
.c_cc[VSTOP] = '',
.c_cc[VSUSP] = '',
.c_cc[VREPRINT] = '',
.c_cc[VWERASE] = '',
.c_cc[VLNEXT] = '',
.c_cc[VDISCARD] = '',
.c_cc[VMIN] = 1,
.c_cc[VTIME] = 0,
};
static const struct termios tui_termios = {
.c_iflag = 0,
.c_oflag = ONLCR | NL0 | CR0 | TAB0 | BS0 | VT0 | FF0,
.c_lflag = ECHOE | ECHOK | ECHOCTL | ECHOKE,
.c_cflag = CS8 | CREAD,
.c_cc[VINTR] = '',
.c_cc[VQUIT] = '',
.c_cc[VERASE] = 127,
.c_cc[VKILL] = '',
.c_cc[VEOF] = '',
.c_cc[VSTART] = '',
.c_cc[VSTOP] = '',
.c_cc[VSUSP] = '',
.c_cc[VREPRINT] = '',
.c_cc[VWERASE] = '',
.c_cc[VLNEXT] = '',
.c_cc[VDISCARD] = '',
.c_cc[VMIN] = 1,
.c_cc[VTIME] = 0,
};
static void cleanup(void)
{
if (!current_bt.out) return;