1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/* test_scankey.c - collate incoming ansi escape sequences.
*
* Copyright 2015 Rob Landley <rob@landley.net>
USE_TEST_SCANKEY(NEWTOY(test_scankey, 0, 0))
config TEST_SCANKEY
bool "test_scankey"
default n
help
usage: test_scankey
Move a letter around the screen. Hit ESC to exit.
*/
#define FOR_test_scankey
#include "toys.h"
void test_scankey_main(void)
{
time_t t[2];
unsigned width, height, tick;
char c = 'X', scratch[16];
int key, x, y;
t[0] = t[1] = x = tick = 0;
memset(scratch, 0, 16);
y = 1;
sigatexit(tty_sigreset); // Make ctrl-c restore tty
tty_esc("?25l"); // hide cursor
tty_esc("0m"); // reset color to default
tty_esc("2J"); // Clear screen
set_terminal(1, 1, 0); // Raw mode
for (;;) {
tty_jump(x, y);
xputc(c);
t[1&++tick] = time(0);
key = scan_key_getsize(scratch, !!t[0]+2*(t[0] != t[1]), &width, &height);
tty_jump(0, 0);
printf("ESC to exit: key=%d x=%d y=%d width=%d height=%d ",
key, x, y, width, height);
if (key == -2) continue;
if (key <= ' ') break;
if (key>=256) {
tty_jump(x, y);
xputc(' ');
key -= 256;
if (key==KEY_UP) y--;
else if (key==KEY_DOWN) y++;
else if (key==KEY_RIGHT) x++;
else if (key==KEY_LEFT) x--;
else if (key==KEY_PGUP) y = 0;
else if (key==KEY_PGDN) y = 999;
else if (key==KEY_HOME) x = 0;
else if (key==KEY_END) x = 999;
if (y<1) y = 1;
if (y>=height) y = height-1;
if (x<0) x = 0;
if (x>=width) x = width-1;
} else c = key;
}
tty_reset();
}
|
