static void fghcbProcessWork( SFG_Window *window,
SFG_Enumerator *enumerator )
{
if( window->State.WorkMask )
fgProcessWork ( window );
fgEnumSubWindows( window, fghcbProcessWork, enumerator );
}
static void fghHavePendingRedisplaysCallback( SFG_Window* w, SFG_Enumerator* e)
{
if( w->State.Redisplay )
{
e->found = GL_TRUE;
e->data = w;
}
fgEnumSubWindows( w, fghHavePendingRedisplaysCallback, e );
}
/*
* Indicates whether Joystick events are being used by ANY window.
*
* The current mechanism is to walk all of the windows and ask if
* there is a joystick callback. We have a short-circuit early
* return if we find any joystick handler registered.
*
* The real way to do this is to make use of the glutTimer() API
* to more cleanly re-implement the joystick API. Then, this code
* and all other "joystick timer" code can be yanked.
*
*/
static void fghCheckJoystickCallback( SFG_Window* w, SFG_Enumerator* e)
{
if( FETCH_WCB( *w, Joystick ) )
{
e->found = GL_TRUE;
e->data = w;
}
fgEnumSubWindows( w, fghCheckJoystickCallback, e );
}
/*
* Indicates whether work is pending for ANY window.
*
* The current mechanism is to walk all of the windows and ask if
* work is pending. We have a short-circuit early return if we find any.
*/
static void fghHavePendingWorkCallback( SFG_Window* w, SFG_Enumerator* e)
{
if( w->State.WorkMask )
{
e->found = GL_TRUE;
e->data = w;
return;
}
fgEnumSubWindows( w, fghHavePendingWorkCallback, e );
}
/*
* A static helper function to look for a window given its ID
*/
static void fghcbWindowByID( SFG_Window *window, SFG_Enumerator *enumerator )
{
/* Make sure we do not overwrite our precious results... */
if( enumerator->found )
return;
/* Check the window's handle. Hope this works. Looks ugly. That's for sure. */
if( window->ID == *( int *)(enumerator->data) )
{
enumerator->found = GL_TRUE;
enumerator->data = window;
return;
}
/* Otherwise, check this window's children */
fgEnumSubWindows( window, fghcbWindowByID, enumerator );
}
/*
* A static helper function to look for a window given its handle
*/
static void fghcbWindowByHandle( SFG_Window *window,
SFG_Enumerator *enumerator )
{
if ( enumerator->found )
return;
/* Check the window's handle. Hope this works. Looks ugly. That's for sure. */
if( window->Window.Handle == (SFG_WindowHandleType) (enumerator->data) )
{
enumerator->found = GL_TRUE;
enumerator->data = window;
return;
}
/* Otherwise, check this window's children */
fgEnumSubWindows( window, fghcbWindowByHandle, enumerator );
}
/*
* Window enumerator callback to check for the joystick polling code
*/
static void fghcbCheckJoystickPolls( SFG_Window *window,
SFG_Enumerator *enumerator )
{
fg_time_t checkTime;
if (window->State.JoystickPollRate > 0 && FETCH_WCB( *window, Joystick ))
{
/* This window has a joystick to be polled (if pollrate <= 0, user needs to poll manually with glutForceJoystickFunc */
checkTime= fgElapsedTime( );
if( window->State.JoystickLastPoll + window->State.JoystickPollRate <=
checkTime )
{
#if !defined(_WIN32_WCE)
fgJoystickPollWindow( window );
#endif /* !defined(_WIN32_WCE) */
window->State.JoystickLastPoll = checkTime;
}
}
fgEnumSubWindows( window, fghcbCheckJoystickPolls, enumerator );
}
/* Check all windows for dialbox callbacks */
static void fghcbEnumDialCallbacks ( SFG_Window *window, SFG_Enumerator *enumerator )
{
/* Built-in to INVOKE_WCB(): if window->Callbacks[CB_Dials] */
INVOKE_WCB ( *window,Dials, ( ((int*)enumerator->data)[0], ((int*)enumerator->data)[1]) );
fgEnumSubWindows ( window, fghcbEnumDialCallbacks, enumerator );
}