* Merged caca_wait_event() into caca_get_event() and added a timeout

parameter to do what both functions did before, and even more.

caca/caca.h

@@ -237,8 +237,7 @@ int caca_set_window_title(caca_t *kk, char const *);
  *  clicks.
  *
  *  @{ */
-int caca_get_event(caca_t *kk, unsigned int, struct caca_event *);
-int caca_wait_event(caca_t *kk, unsigned int, struct caca_event *);
+int caca_get_event(caca_t *kk, unsigned int, struct caca_event *, int);
 unsigned int caca_get_mouse_x(caca_t *kk);
 unsigned int caca_get_mouse_y(caca_t *kk);
 void caca_set_mouse(caca_t *kk, int);

caca/event.c

@@ -45,50 +45,59 @@ static int _lowlevel_event(caca_t *, struct caca_event *);
  *
  *  This function polls the event queue for mouse or keyboard events matching
  *  the event mask and returns the first matching event. Non-matching events
- *  are discarded. \c event_mask must have a non-zero value. This function is
- *  non-blocking and returns zero if no more events are pending in the queue.
- *  See also caca_wait_event() for a blocking version of this function.
+ *  are discarded. \c event_mask must have a non-zero value.
+ *
+ *  The timeout value tells how long this function needs to wait for an
+ *  event. A value of zero returns immediately and the function returns zero
+ *  if no more events are pending in the queue. A negative value causes the
+ *  function to wait indefinitely until a matching event is received.
  *
  * \param event_mask Bitmask of requested events.
+ * \param timeout A timeout value in microseconds
  * \return The next matching event in the queue, or 0 if no event is pending.
  */
-int caca_get_event(caca_t *kk, unsigned int event_mask, struct caca_event *ev)
+int caca_get_event(caca_t *kk, unsigned int event_mask,
+                   struct caca_event *ev, int timeout)
 {
-    if(!event_mask)
-        return 0;
-
-    for( ; ; )
-    {
-        int ret = _get_next_event(kk, ev);
-
-        if(!ret || ev->type & event_mask)
-            return ret;
-    }
-}
+    struct caca_timer timer;
+    int usec = 0;
 
-/** \brief Wait for the next mouse or keyboard input event.
- *
- *  This function returns the first mouse or keyboard event in the queue
- *  that matches the event mask. If no event is pending, it blocks until a
- *  matching event is received. \c event_mask must have a non-zero value.
- *  See also caca_get_event() for a non-blocking version of this function.
- *
- *  \param event_mask Bitmask of requested events.
- *  \return The next event in the queue.
- */
-int caca_wait_event(caca_t *kk, unsigned int event_mask, struct caca_event *ev)
-{
     if(!event_mask)
         return 0;
 
+    if(timeout > 0)
+        _caca_getticks(&timer);
+
     for( ; ; )
     {
         int ret = _get_next_event(kk, ev);
 
-        if(ret && (ev->type & event_mask))
+        /* If we got the event we wanted, return */
+        if(ev->type & event_mask)
             return ret;
 
-        _caca_sleep(10000);
+        /* If there is no timeout, sleep and try again. */
+        if(timeout < 0)
+        {
+            _caca_sleep(10000);
+            continue;
+        }
+
+        /* If we timeouted, return an empty event */
+        if(usec >= timeout)
+        {
+            ev->type = CACA_EVENT_NONE;
+            return 0;
+        }
+
+        /* Otherwise sleep a bit. Our granularity is far too high for values
+         * below 10000 microseconds so we cheat a bit. */
+        if(usec > 10000)
+            _caca_sleep(10000);
+        else
+            _caca_sleep(1000);
+
+        usec += _caca_getticks(&timer);
     }
 }
 

src/aafire.c

@@ -266,7 +266,7 @@ game (void)
     {
 #ifdef LIBCACA
       struct caca_event ev;
-      if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev))
+      if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0))
         {
           switch(ev.data.key.c)
             {

src/cacaball.c

@@ -93,7 +93,7 @@ int main(int argc, char **argv)
     for(;;)
     {
         struct caca_event ev;
-        if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev))
+        if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0))
         {
             switch(ev.data.key.c)
             {

src/cacamoir.c

@@ -69,7 +69,7 @@ int main (int argc, char **argv)
     for(;;)
     {
         struct caca_event ev;
-        if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev))
+        if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0))
         {
             switch(ev.data.key.c)
             {

src/cacaplas.c

@@ -85,7 +85,7 @@ int main (int argc, char **argv)
     for(;;) 
     {
         struct caca_event ev;
-        if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev))
+        if(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0))
         {
             switch(ev.data.key.c)
             {

src/cacaplay.c

@@ -66,7 +66,7 @@ int main(int argc, char **argv)
 
     caca_display(kk);
 
-    while(caca_wait_event(kk, CACA_EVENT_KEY_PRESS, &ev))
+    while(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, -1))
     {
         if(ev.data.key.c == CACA_KEY_ESCAPE)
             break;

src/cacaview.c

@@ -151,9 +151,9 @@ int main(int argc, char **argv)
         int event;
 
         if(update)
-            event = caca_get_event(kk, event_mask, &ev);
+            event = caca_get_event(kk, event_mask, &ev, 0);
         else
-            event = caca_wait_event(kk, event_mask, &ev);
+            event = caca_get_event(kk, event_mask, &ev, -1);
 
         while(event)
         {
@@ -304,7 +304,7 @@ int main(int argc, char **argv)
             if(help || new_help)
                 help = new_help;
 
-            event = caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+            event = caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0);
         }
 
         if(items && reload)

test/colors.c

@@ -50,7 +50,7 @@ int main(int argc, char **argv)
     }
 
     caca_display(kk);
-    caca_wait_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+    caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, -1);
 
     caca_detach(kk);
     cucul_free(qq);

test/demo.c

@@ -74,7 +74,7 @@ int main(int argc, char **argv)
         struct caca_event ev;
         int menu = 0, mouse = 0, xmouse = 0, ymouse = 0;
 
-        while(caca_get_event(kk, CACA_EVENT_ANY, &ev))
+        while(caca_get_event(kk, CACA_EVENT_ANY, &ev, 0))
         {
             if(demo && (ev.type & CACA_EVENT_KEY_PRESS))
             {
@@ -148,6 +148,10 @@ int main(int argc, char **argv)
                 xmouse = ev.data.mouse.x;
                 ymouse = ev.data.mouse.y;
             }
+            else if(ev.type & CACA_EVENT_RESIZE)
+            {
+                mouse = 1; /* old hack */
+            }
         }
 
         if(menu || (mouse && !demo))
@@ -156,7 +160,8 @@ int main(int argc, char **argv)
             if(mouse && !demo)
             {
                 cucul_set_color(qq, CUCUL_COLOR_RED, CUCUL_COLOR_BLACK);
-                cucul_putstr(qq, xmouse, ymouse, "|\\");
+                cucul_putstr(qq, xmouse, ymouse,     ".");
+                cucul_putstr(qq, xmouse, ymouse + 1, "|\\");
             }
             caca_display(kk);
             mouse = menu = 0;

test/dithering.c

@@ -124,7 +124,7 @@ int main(void)
 
     caca_display(kk);
 
-    caca_wait_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+    caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, -1);
 
     caca_detach(kk);
     cucul_free(qq);

test/event.c

@@ -54,7 +54,7 @@ int main(int argc, char **argv)
     {
         struct caca_event ev;
         static char const * quit_string[] = { "", "q", "qu", "qui", "quit" };
-        int ret = caca_wait_event(kk, CACA_EVENT_ANY, &ev);
+        int ret = caca_get_event(kk, CACA_EVENT_ANY, &ev, -1);
 
         if(!ret)
             continue;
@@ -77,7 +77,7 @@ int main(int argc, char **argv)
             memmove(events + 1, events, (h - 1) * sizeof(struct caca_event));
             events[0] = ev;
 
-            ret = caca_get_event(kk, CACA_EVENT_ANY, &ev);
+            ret = caca_get_event(kk, CACA_EVENT_ANY, &ev, 0);
         }
         while(ret);
 

test/gamma.c

@@ -62,7 +62,7 @@ int main(void)
 
     for(x = 0; ; x++)
     {
-        int ret = caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+        int ret = caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0);
 
         if(ret)
         {

test/hsv.c

@@ -53,7 +53,7 @@ int main(void)
 
     caca_display(kk);
 
-    caca_wait_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+    caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0);
 
     caca_detach(kk);
     cucul_free(qq);

test/spritedit.c

@@ -57,7 +57,7 @@ int main(int argc, char **argv)
         int xa, ya, xb, yb;
         char buf[BUFSIZ];
 
-        while(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev))
+        while(caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, 0))
         {
             switch(ev.data.key.c)
             {

test/transform.c

@@ -108,7 +108,7 @@ int main(void)
 
     caca_display(kk);
 
-    caca_wait_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+    caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, -1);
 
     caca_detach(kk);
     cucul_free(rotate);

test/unicode.c

@@ -87,7 +87,7 @@ int main(void)
 
     caca_display(kk);
 
-    caca_wait_event(kk, CACA_EVENT_KEY_PRESS, &ev);
+    caca_get_event(kk, CACA_EVENT_KEY_PRESS, &ev, -1);
 
     caca_detach(kk);
     cucul_free(qq);