/* * 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); }