*/
#include <ncurses.h>
-#include <locale.h>
-#include <stdio.h>
+
+#include <fcntl.h>
#include <signal.h>
+#include <stdio.h>
#include <string.h>
+#include <sys/ioctl.h>
#include <sys/time.h>
+#include <termios.h>
#include <time.h>
#include <madtty/madtty.h>
-static unsigned char getout = 0;
+static int getout = 0, sigwinch = 0;
static int screen_w, screen_h;
static WINDOW *term_win;
+static struct timeval const slice = { 0, 1000 * 1000 / 100 };
-void sigchld(int signo __attribute__((unused)))
+void handler(int signo)
{
- getout = 1;
+ switch (signo) {
+ case SIGCHLD:
+ getout = 1;
+ break;
+ case SIGWINCH:
+ sigwinch = 1;
+ break;
+ }
}
-int main(int argc, char *argv[])
+static struct timeval timeval_add(struct timeval a, struct timeval b)
{
- struct timeval next = { 0, 0 };
- RoteTerm *rt;
- int i, j, ch, w, h, pos;
- char buf[BUFSIZ];
-
- signal(SIGCHLD, sigchld);
-
- w = 80;
- h = 40;
- if (argc > 1) {
- char *p = argv[1];
- w = strtol(p, &p, 10);
- if (*p++ == 'x')
- h = strtol(p, &p, 10);
+ int usec = a.tv_usec + b.tv_usec;
+ a.tv_sec += b.tv_sec;
+ while (usec > 1000 * 1000) {
+ a.tv_sec += 1;
+ usec -= 1000 * 1000;
}
+ a.tv_usec = usec;
+ return a;
+}
- setlocale(LC_ALL, "");
- initscr();
- noecho();
- start_color();
- raw();
- nodelay(stdscr, TRUE); /* prevents getch() from blocking; rather
- * it will return ERR when there is no
- * keypress available */
+static int is_expired(struct timeval now, struct timeval expiry)
+{
+ return now.tv_sec > expiry.tv_sec
+ || (now.tv_sec == expiry.tv_sec && now.tv_usec > expiry.tv_usec);
+}
- keypad(stdscr, TRUE); /* necessary to use rote_vt_keypress */
- getmaxyx(stdscr, screen_h, screen_w);
+int main(void)
+{
+ madtty_t *rt;
+ int dirty = 0, pty;
+ struct timeval next;
- /* initialize the color pairs the way rote_vt_draw expects it. You might
- * initialize them differently, but in that case you would need
- * to supply a custom conversion function for rote_vt_draw to
- * call when setting attributes. The idea of this "default" mapping
- * is to map (fg, bg) to the color pair bg * 8 + 7 - fg. This way,
- * the pair (white, black) ends up mapped to 0, which means that
- * it does not need a color pair (since it is the default). Since
- * there are only 63 available color pairs (and 64 possible fg/bg
- * combinations), we really have to save 1 pair by assigning no pair
- * to the combination white/black. */
- for (i = 0; i < 8; i++) for (j = 0; j < 8; j++)
- if (i != 7 || j != 0)
- init_pair(j*8+7-i, i, j);
-
- /* paint the screen blue */
- attrset(COLOR_PAIR(32));
- for (i = 0; i < screen_h; i++)
- for (j = 0; j < screen_w; j++)
- addch(' ');
- refresh();
+ signal(SIGCHLD, handler);
+ signal(SIGWINCH, handler);
- /* create a window with a frame */
- term_win = newwin(h + 2, w + 2, 2, 3);
- wborder(term_win, '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0');
- mvwprintw(term_win, 0, 27, " Term In a Box ");
- wrefresh(term_win);
+ madtty_initialize();
+ getmaxyx(stdscr, screen_h, screen_w);
- rt = rote_vt_create(h, w);
+ /* create a window with a frame */
+ term_win = newwin(screen_h - 2, screen_w - 2, 1, 1);
+ rt = madtty_create(screen_h - 2, screen_w -2);
{
const char *path = getenv("SHELL") ?: "/bin/sh";
const char *args[] = { path, "--login", NULL};
- rote_vt_forkpty(rt, path, args);
+ madtty_forkpty(rt, path, args, &pty);
}
/* keep reading keypresses from the user and passing them to the terminal;
* also, redraw the terminal to the window at each iteration */
- ch = '\0';
- pos = 0;
+ gettimeofday(&next, NULL);
while (!getout) {
+ struct timeval tv = { 0, 1000 * 1000 / 100 };
fd_set rfds;
- struct timeval tv = { 0 , 1000 }, t;
+ int ch;
FD_ZERO(&rfds);
- FD_SET(rt->pty, &rfds);
+ FD_SET(0, &rfds);
+ FD_SET(pty, &rfds);
- if (select(rt->pty + 1, &rfds, NULL, NULL, &tv) > 0) {
- int nb;
+ if (select(pty + 1, &rfds, NULL, NULL, &tv) > 0) {
+ if (FD_ISSET(pty, &rfds)) {
+ madtty_process(rt);
+ dirty = 1;
+ }
+ }
- nb = rote_vt_read(rt, buf + pos, sizeof(buf) - pos);
- if (nb <= 0)
- continue;
- pos += nb;
+ if (sigwinch) {
+ int fd, cols = -1, rows = -1;
+ struct winsize w;
- nb = rote_vt_inject(rt, buf, pos);
- if (nb <= 0)
- continue;
- memmove(buf, buf + nb, pos - nb);
- pos -= nb;
+ if ((fd = open("/dev/tty", O_RDONLY)) != -1) {
+ if (ioctl(fd, TIOCGWINSZ, &w) != -1) {
+ rows = w.ws_row;
+ cols = w.ws_col;
+ }
+ close(fd);
+ }
+ if (rows <= 0) {
+ rows = atoi(getenv("LINES") ?: "24");
+ }
+ if (cols <= 0) {
+ cols = atoi(getenv("COLUMNS") ?: "80");
+ }
+
+ resizeterm(rows, cols);
+ madtty_resize(rt, rows - 2, cols - 2);
+ wresize(term_win, rows - 2, cols - 2);
+ sigwinch = 0;
+ erase();
}
while ((ch = getch()) != ERR) {
- rote_vt_keypress(rt, ch); /* pass the keypress for handling */
+ madtty_keypress(rt, ch); /* pass the keypress for handling */
+ dirty = 1;
}
- gettimeofday(&t, NULL);
- if (timercmp(&t, &next, >=)) {
- rote_vt_draw(rt, term_win, 1, 1);
+ gettimeofday(&tv, NULL);
+ if (dirty && is_expired(tv, next)) {
+ madtty_draw(rt, term_win, 0, 0);
wrefresh(term_win);
- gettimeofday(&next, NULL);
- next.tv_usec += 1000 * 1000 / 100;
- if (next.tv_usec > 1000 * 1000) {
- next.tv_usec -= 1000 * 1000;
- next.tv_sec++;
- }
+ dirty = 0;
+ next = timeval_add(tv, slice);
}
}
projects / apps / madtty.git / blobdiff