/**
* Example strings:
* Key55
* Joy{uuid}/Button2
* Joy{uuid}/Hat0Dir3
*/
bool KeyBinding::FromString(const char *str, KeyBinding &kb)
{
const char *digits = "1234567890";
const char *p = str;
if (strcmp(p, "disabled") == 0) {
kb.Clear();
} else if (strncmp(p, "Key", 3) == 0) {
kb.type = KEYBOARD_KEY;
p += 3;
kb.u.keyboard.key = SDL_Keycode(atoi(p));
p += strspn(p, digits);
if (strncmp(p, "Mod", 3) == 0) {
p += 3;
kb.u.keyboard.mod = SDL_Keymod(atoi(p));
} else {
kb.u.keyboard.mod = KMOD_NONE;
}
} else if (strncmp(p, "Joy", 3) == 0) {
p += 3;
const int JoyUUIDLength = 33;
char joyUUIDBuf[JoyUUIDLength];
// read the UUID
if (!ReadToTok('/', &p, joyUUIDBuf, JoyUUIDLength)) {
return false;
}
// force terminate
joyUUIDBuf[JoyUUIDLength-1] = '\0';
// now, locate the internal ID.
int joy = Pi::JoystickFromGUIDString(joyUUIDBuf);
if (joy == -1) {
return false;
}
if (strncmp(p, "Button", 6) == 0) {
p += 6;
kb.type = JOYSTICK_BUTTON;
kb.u.joystickButton.joystick = joy;
kb.u.joystickButton.button = atoi(p);
} else if (strncmp(p, "Hat", 3) == 0) {
p += 3;
kb.type = JOYSTICK_HAT;
kb.u.joystickHat.joystick = joy;
kb.u.joystickHat.hat = atoi(p);
p += strspn(p, digits);
if (strncmp(p, "Dir", 3) != 0)
return false;
p += 3;
kb.u.joystickHat.direction = atoi(p);
} else
return false;
}
return true;
}
bool AxisBinding::FromString(const char *str, AxisBinding &ab) {
if (strcmp(str, "disabled") == 0) {
ab.Clear();
return true;
}
const char *p = str;
if (p[0] == '-') {
ab.direction = NEGATIVE;
p++;
}
else
ab.direction = POSITIVE;
if (strncmp(p, "Joy", 3) != 0)
return false;
p += 3;
const int JoyUUIDLength = 33;
char joyUUIDBuf[JoyUUIDLength];
// read the UUID
if (!ReadToTok('/', &p, joyUUIDBuf, JoyUUIDLength)) {
return false;
}
// force terminate
joyUUIDBuf[JoyUUIDLength-1] = '\0';
// now, map the GUID to a joystick number
const int joystick = Pi::JoystickFromGUIDString(joyUUIDBuf);
if (joystick == -1) {
return false;
}
// found a joystick
assert(joystick < 256);
ab.joystick = Uint8(joystick);
if (strncmp(p, "Axis", 4) != 0)
return false;
p += 4;
ab.axis = atoi(p);
return true;
}
