1 /* Just a simple example program that creates a terminal in a frame
2 * and lets the user interact with it.
5 * gcc -o boxshell boxshell.c $(pkg-config madtty --cflags --libs)
13 #include <madtty/madtty.h>
15 static unsigned char getout = 0;
16 static int screen_w, screen_h;
17 static WINDOW *term_win;
19 void sigchld(int signo __attribute__((unused)))
24 int my_custom_handler(RoteTerm *rt __attribute__((unused)), const char *es)
29 /* if the escape sequence does not begin with '{', we give up */
30 if (*es != '{') return ROTE_HANDLERESULT_NOWAY;
32 /* ok, now we know it begins with '{'. Now, if it does not end with '}',
33 * it is not yet complete */
34 if (es[strlen(es)-1] != '}') return ROTE_HANDLERESULT_NOTYET;
36 /* ok, the sequence is complete */
38 if (color < 0 || color > 7) return false; /* don't recognize it */
40 /* paint the background with that color */
41 attrset(COLOR_PAIR(color * 8));
43 for (i = 0; i < screen_h; i++) for (j = 0; j < screen_w; j++) addch(' ');
47 /* touch term_win to force it to do a full redraw next time */
50 /* and redraw the terminal window */
53 /* escape sequence was handled ok */
54 return ROTE_HANDLERESULT_OK;
57 int main(int argc, char *argv[])
62 signal(SIGCHLD, sigchld);
68 w = strtol(p, &p, 10);
70 h = strtol(p, &p, 10);
77 nodelay(stdscr, TRUE); /* prevents getch() from blocking; rather
78 * it will return ERR when there is no
79 * keypress available */
81 keypad(stdscr, TRUE); /* necessary to use rote_vt_keypress */
82 getmaxyx(stdscr, screen_h, screen_w);
84 /* initialize the color pairs the way rote_vt_draw expects it. You might
85 * initialize them differently, but in that case you would need
86 * to supply a custom conversion function for rote_vt_draw to
87 * call when setting attributes. The idea of this "default" mapping
88 * is to map (fg, bg) to the color pair bg * 8 + 7 - fg. This way,
89 * the pair (white, black) ends up mapped to 0, which means that
90 * it does not need a color pair (since it is the default). Since
91 * there are only 63 available color pairs (and 64 possible fg/bg
92 * combinations), we really have to save 1 pair by assigning no pair
93 * to the combination white/black. */
94 for (i = 0; i < 8; i++) for (j = 0; j < 8; j++)
96 init_pair(j*8+7-i, i, j);
98 /* paint the screen blue */
99 attrset(COLOR_PAIR(32));
100 for (i = 0; i < screen_h; i++)
101 for (j = 0; j < screen_w; j++)
105 /* create a window with a frame */
106 term_win = newwin(h + 2, w + 2, 1, 2);
107 wattrset(term_win, COLOR_PAIR(7*8+7-0)); /* black over white */
108 wborder(term_win, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
109 mvwprintw(term_win, 0, 27, " Term In a Box ");
112 /* create the terminal and have it run bash */
113 rt = rote_vt_create(h, w);
114 rote_vt_forkpty(rt, "/bin/bash --login");
116 /* add a sample custom escape sequence handler... say we want to handle
117 * the sequence, say, \e{N}, which will change the application's background
118 * color to N (where N is a number between 0 and 7). */
119 rote_vt_install_handler(rt, my_custom_handler);
121 /* keep reading keypresses from the user and passing them to the terminal;
122 * also, redraw the terminal to the window at each iteration */
126 rote_vt_draw(rt, term_win, 1, 1, NULL);
131 rote_vt_keypress(rt, ch); /* pass the keypress for handling */