static int fghHavePendingWork (void)
{
SFG_Enumerator enumerator;
enumerator.found = GL_FALSE;
enumerator.data = NULL;
fgEnumWindows( fghHavePendingWorkCallback, &enumerator );
return !!enumerator.data;
}
/*
* Check all windows for joystick polling
*
* 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 fghCheckJoystickPolls( void )
{
SFG_Enumerator enumerator;
enumerator.found = GL_FALSE;
enumerator.data = NULL;
fgEnumWindows( fghcbCheckJoystickPolls, &enumerator );
}
/*
* Make all windows process their work list
*/
static void fghProcessWork( void )
{
SFG_Enumerator enumerator;
enumerator.found = GL_FALSE;
enumerator.data = NULL;
fgEnumWindows( fghcbProcessWork, &enumerator );
}
static int fghHaveJoystick( void )
{
SFG_Enumerator enumerator;
enumerator.found = GL_FALSE;
enumerator.data = NULL;
fgEnumWindows( fghCheckJoystickCallback, &enumerator );
return !!enumerator.data;
}
static void send_dial_event ( int num, int value )
{
SFG_Enumerator enumerator;
int data[2];
data[0] = num;
data[1] = value;
enumerator.found = GL_FALSE;
enumerator.data = data;
fgEnumWindows ( fghcbEnumDialCallbacks, &enumerator );
}
/*
* This function is similar to the previous one, except it is
* looking for a specified (sub)window identifier. The function
* is defined in freeglut_structure.c file.
*/
SFG_Window* fgWindowByID( int windowID )
{
SFG_Enumerator enumerator;
/* Uses a method very similar for fgWindowByHandle... */
enumerator.found = GL_FALSE;
enumerator.data = ( void * )&windowID;
fgEnumWindows( fghcbWindowByID, &enumerator );
if( enumerator.found )
return ( SFG_Window * )enumerator.data;
return NULL;
}
/*
* fgWindowByHandle returns a (SFG_Window *) value pointing to the
* first window in the queue matching the specified window handle.
* The function is defined in freeglut_structure.c file.
*/
SFG_Window* fgWindowByHandle ( SFG_WindowHandleType hWindow )
{
SFG_Enumerator enumerator;
/* This is easy and makes use of the windows enumeration defined above */
enumerator.found = GL_FALSE;
enumerator.data = (void *)hWindow;
fgEnumWindows( fghcbWindowByHandle, &enumerator );
if( enumerator.found )
return( SFG_Window *) enumerator.data;
return NULL;
}
