static int CalibrationEventCallback(SDL_Event *event, void *user_data)
{
if (event->type != SDL_JOYBUTTONDOWN)
{
return 0;
}
// At this point, we have a button press.
// In the first "center" stage, we're just trying to work out which
// joystick is being configured and which button the user is pressing.
joystick_index = event->jbutton.which;
calibrate_button = event->jbutton.button;
// If the joystick is a known one, auto-load default
// config for it. Otherwise, proceed with calibration.
if (IsKnownJoystick(joystick_index))
{
LoadKnownConfiguration();
usejoystick = 1;
TXT_CloseWindow(calibration_window);
}
else
{
TXT_CloseWindow(calibration_window);
// Calibrate joystick axes: Y axis first, then X axis once
// completed.
TXT_ConfigureJoystickAxis(y_axis_widget, calibrate_button,
CalibrateXAxis);
}
return 1;
}
static int TXT_JoystickAxisKeyPress(TXT_UNCAST_ARG(joystick_axis), int key)
{
TXT_CAST_ARG(txt_joystick_axis_t, joystick_axis);
if (key == KEY_ENTER)
{
TXT_ConfigureJoystickAxis(joystick_axis, -1, NULL);
return 1;
}
if (key == KEY_BACKSPACE || key == KEY_DEL)
{
*joystick_axis->axis = -1;
}
return 0;
}
static void CalibrateXAxis(void)
{
TXT_ConfigureJoystickAxis(x_axis_widget, calibrate_button, NULL);
}
