/*
* initscr --
* Initialize the current and standard screen.
*/
WINDOW *
initscr()
{
register char *sp;
#ifdef DEBUG
__CTRACE("initscr\n");
#endif
__echoit = 1;
__pfast = __rawmode = __noqch = 0;
if (gettmode() == ERR)
return (NULL);
/*
* If My_term is set, or can't find a terminal in the environment,
* use Def_term.
*/
if (My_term || (sp = getenv("TERM")) == NULL)
sp = Def_term;
if (setterm(sp) == ERR)
return (NULL);
/* Need either homing or cursor motion for refreshes */
if (!HO && !CM)
return (NULL);
if (curscr != NULL)
delwin(curscr);
if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
return (NULL);
clearok(curscr, 1);
if (stdscr != NULL)
delwin(stdscr);
if ((stdscr = newwin(LINES, COLS, 0, 0)) == ERR) {
delwin(curscr);
return (NULL);
}
__set_stophandler();
#ifdef DEBUG
__CTRACE("initscr: LINES = %d, COLS = %d\n", LINES, COLS);
#endif
__startwin();
return (stdscr);
}
void
__restartwin(void)
{
struct winsize win;
int nlines, ncols;
#ifdef DEBUG
__CTRACE(__CTRACE_MISC, "__restartwin\n");
#endif
if (!_cursesi_screen->endwin)
return;
/* Reset the curses SIGTSTP and SIGWINCH signal handlers. */
__set_stophandler();
__set_winchhandler();
/*
* Check to see if the window size has changed.
* If the application didn't update LINES and COLS,
* set the * resized flag to tell getch() to push KEY_RESIZE.
* Update curscr (which also updates __virtscr) and stdscr
* to match the new size.
*/
if (ioctl(fileno(_cursesi_screen->outfd), TIOCGWINSZ, &win) != -1 &&
win.ws_row != 0 && win.ws_col != 0) {
if (win.ws_row != LINES) {
LINES = win.ws_row;
_cursesi_screen->resized = 1;
}
if (win.ws_col != COLS) {
COLS = win.ws_col;
_cursesi_screen->resized = 1;
}
}
/*
* We need to make local copies of LINES and COLS, otherwise we
* could lose if they are changed between wresize() calls.
*/
nlines = LINES;
ncols = COLS;
if (curscr->maxy != nlines || curscr->maxx != ncols)
wresize(curscr, nlines, ncols);
if (stdscr->maxy != nlines || stdscr->maxx != ncols)
wresize(stdscr, nlines, ncols);
/* save the new "default" terminal state */
(void) tcgetattr(fileno(_cursesi_screen->infd),
&_cursesi_screen->orig_termios);
/* Reset the terminal state to the mode just before we stopped. */
(void) tcsetattr(fileno(_cursesi_screen->infd), TCSASOFT | TCSADRAIN,
&_cursesi_screen->save_termios);
/* Restore colours */
__restore_colors();
/* Reset meta */
__restore_meta_state();
/* Restart the screen. */
__startwin(_cursesi_screen);
/* Reset cursor visibility */
__restore_cursor_vis();
/* Repaint the screen. */
wrefresh(curscr);
}
