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/* $Id$ */
#include "bbs.h"
int tgetent(const char *bp, char *name);
char *tgetstr(const char *id, char **area);
int tgetflag(const char *id);
int tgetnum(const char *id);
int tputs(const char *str, int affcnt, int (*putc) (int));
char *tparm(const char *str,...);
char *tgoto(const char *cap, int col, int row);
static struct termios tty_state, tty_new;
/* ----------------------------------------------------- */
/* basic tty control */
/* ----------------------------------------------------- */
void
init_tty()
{
if (tcgetattr(1, &tty_state) < 0) {
syslog(LOG_ERR, "tcgetattr(): %m");
return;
}
memcpy(&tty_new, &tty_state, sizeof(tty_new));
tty_new.c_lflag &= ~(ICANON | ECHO | ISIG);
/*
* tty_new.c_cc[VTIME] = 0; tty_new.c_cc[VMIN] = 1;
*/
tcsetattr(1, TCSANOW, &tty_new);
system("stty raw -echo");
}
/* ----------------------------------------------------- */
/* init tty control code */
/* ----------------------------------------------------- */
#define TERMCOMSIZE (40)
#if 0
static char *outp;
static int *outlp;
static int
outcf(int ch)
{
if (*outlp < TERMCOMSIZE) {
(*outlp)++;
*outp++ = ch;
}
return 0;
}
#endif
static void
term_resize(int sig)
{
struct winsize newsize;
screenline_t *new_picture;
signal(SIGWINCH, SIG_IGN); /* Don't bother me! */
ioctl(0, TIOCGWINSZ, &newsize);
/* make sure reasonable size */
newsize.ws_row = MAX(24, MIN(100, newsize.ws_row));
newsize.ws_col = MAX(80, MIN(200, newsize.ws_col));
if (newsize.ws_row > t_lines) {
new_picture = (screenline_t *) calloc(newsize.ws_row,
sizeof(screenline_t));
if (new_picture == NULL) {
syslog(LOG_ERR, "calloc(): %m");
return;
}
memcpy(new_picture, big_picture, t_lines * sizeof(screenline_t));
free(big_picture);
big_picture = new_picture;
}
t_lines = newsize.ws_row;
t_columns = newsize.ws_col;
scr_lns = t_lines; /* XXX: scr_lns 跟 t_lines 有什麼不同, 為何分成兩個 */
b_lines = t_lines - 1;
p_lines = t_lines - 4;
signal(SIGWINCH, term_resize);
}
int
term_init()
{
signal(SIGWINCH, term_resize);
return YEA;
}
char term_buf[32];
void
do_move(int destcol, int destline)
{
char buf[16], *p;
snprintf(buf, sizeof(buf), "\33[%d;%dH", destline + 1, destcol + 1);
for (p = buf; *p; p++)
ochar(*p);
}
void
save_cursor()
{
ochar('\33');
ochar('7');
}
void
restore_cursor()
{
ochar('\33');
ochar('8');
}
void
change_scroll_range(int top, int bottom)
{
char buf[16], *p;
snprintf(buf, sizeof(buf), "\33[%d;%dr", top + 1, bottom + 1);
for (p = buf; *p; p++)
ochar(*p);
}
void
scroll_forward()
{
ochar('\33');
ochar('D');
}
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