WPJInputUtil::~WPJInputUtil()
{
ClearAllTriggedEvents();
if (al_is_keyboard_installed())
al_unregister_event_source(m_pEventQueue, al_get_keyboard_event_source());
if (al_is_mouse_installed())
al_unregister_event_source(m_pEventQueue, al_get_mouse_event_source());
al_destroy_event_queue(m_pEventQueue);
}
static void *wakeup_thread(ALLEGRO_THREAD *thread, void *user)
{
al_rest(1);
while (!al_get_thread_should_stop(thread)) {
/* If the program uses timers, this hack is not required usually. */
if (_al_get_active_timers_count())
break;
if (!al_is_keyboard_installed())
break;
wakeup_with_fake_timer_event();
al_rest(0.01);
}
return user;
}
/*
* This reads one keystroke from the keyboard, and the current state of
* the modifier keys (ALT, SHIFT, etc). Returns -1 on error, 0 if no data
* is ready, 1 on a keypress, and 2 on keyrelease.
* This is a non-blocking call.
*/
static int
allegro_Read(MWKEY *kbuf, MWKEYMOD *modifiers, MWSCANCODE *scancode)
{
int newkey;
static int mwkey,scanvalue;
if (closedown == 1) return -2; /* special case ESC - terminate application*/
if (!al_is_keyboard_installed()) return 0;
if (al_get_next_event(a_event_queue_k, &a_event)){
/* there are further key events */
if (a_event.type == ALLEGRO_EVENT_KEY_CHAR) {
newkey = a_event.keyboard.unichar;
al_get_keyboard_state(&kbdstate);
char ASCII = newkey & 0xff;
mwkey = ASCII;
//fprintf(stderr,"key char:%d,%c\n",ASCII,ASCII); fflush(stderr);
scanvalue = a_event.keyboard.keycode;
} else {
if (a_event.type == ALLEGRO_EVENT_KEY_UP) {
*kbuf = mwkey;
*scancode = scanvalue;
return 2; //key released
} else {
//fprintf(stderr,"NO key\n"); fflush(stderr);
return 0;
}
}
*modifiers = 0;
if (al_key_down(&kbdstate, ALLEGRO_KEY_ESCAPE)) return -2; /* special case ESC - terminate application*/
if (al_key_down(&kbdstate, ALLEGRO_KEYMOD_SHIFT)) *modifiers |= MWKMOD_SHIFT;
if (al_key_down(&kbdstate, ALLEGRO_KEYMOD_CTRL)) *modifiers |= MWKMOD_CTRL;
if (al_key_down(&kbdstate, ALLEGRO_KEYMOD_ALT)) *modifiers |= MWKMOD_ALT;
if (al_key_down(&kbdstate, ALLEGRO_KEYMOD_ALTGR)) *modifiers |= MWKMOD_ALTGR;
if (al_key_down(&kbdstate, ALLEGRO_KEYMOD_LWIN)) *modifiers |= MWKMOD_LMETA; *modifiers |= MWKMOD_META;
if (al_key_down(&kbdstate, ALLEGRO_KEYMOD_RWIN)) *modifiers |= MWKMOD_RMETA; *modifiers |= MWKMOD_META;
save_modifiers=*modifiers;
*kbuf = mwkey;
*scancode = scanvalue;
return 1; /* keypress received*/
}
return 0; //if no event received
}
bool System::shutdownSharedSystem()
{
if (al_is_joystick_installed())
al_uninstall_joystick();
if (al_is_mouse_installed())
al_uninstall_mouse();
if (al_is_keyboard_installed())
al_uninstall_keyboard();
al_shutdown_image_addon();
if (al_is_system_installed())
al_uninstall_system();
return true;
}
static int
allegro_Poll(void)
{
// fprintf(stderr,"polling keys\n"); fflush(stderr);
if (!al_is_keyboard_installed()) return 0;
if (al_peek_next_event(a_event_queue_k, &a_event)) return 1; //read event in read function
if (al_get_next_event(a_event_queue_d, &a_event)) //remove any event from display queue
if (a_event.type == ALLEGRO_EVENT_DISPLAY_CLOSE){
closedown=1;
return 1; //i.e. received the "closedown" key
}
return 0;
}
bool WPJInputUtil::Init()
{
int bRet;
// init input hardware driver
bRet = al_is_keyboard_installed() && al_is_mouse_installed();
// init event_queue
m_pEventQueue = al_create_event_queue();
if (bRet && m_pEventQueue)
{
al_register_event_source(m_pEventQueue, al_get_keyboard_event_source());
al_register_event_source(m_pEventQueue, al_get_mouse_event_source());
al_register_event_source(m_pEventQueue, al_get_display_event_source(m_pDisplay));
}
return bRet;
}
static int allua_keyboard_is_installed(lua_State * L)
{
lua_pushboolean(L, al_is_keyboard_installed());
return 1;
}
