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Added Nigel's suggested code to clear all but the destroy callback early

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on, leaving Destroy to be cleared later after the last possible point
where it should be invoked.


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@329 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
rkrolib 2003-11-10 09:42:14 +00:00
parent 6230b2de2a
commit f02f918842
1 changed files with 68 additions and 54 deletions
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18
freeglut/freeglut/src/freeglut_structure.c
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@ -204,6 +204,21 @@ void fgAddToWindowDestroyList ( SFG_Window* window, GLboolean needToClose )
if( fgStructure.Window == window )
fgStructure.Window = NULL;
/*
* Clear all window callbacks except Destroy, which will
* be invoked later. Right now, we are potentially carrying
* out a freeglut operation at the behest of a client callback,
* so we are reluctant to re-enter the client with the Destroy
* callback, right now. The others are all wiped out, however,
* to ensure that they are no longer called after this point.
*/
{
void *destroy = FETCH_WCB( *window, Destroy );
fgClearCallBacks( window );
FETCH_WCB( *window, Destroy ) = destroy;
}
/*
* If the destroyed window has the highest window ID number, decrement
* the window ID number.
@ -226,14 +241,12 @@ void fgAddToWindowDestroyList ( SFG_Window* window, GLboolean needToClose )
* "ExecState" after this function returns.
*/
if( fgState.ActionOnWindowClose != GLUT_ACTION_CONTINUE_EXECUTION )
{
/*
* Set the execution state flag to drop out of the main loop.
*/
if( fgState.ActionOnWindowClose == GLUT_ACTION_EXIT )
fgState.ExecState = GLUT_EXEC_STATE_STOP;
}
}
/*
* Function to close down all the windows in the "WindowsToDestroy" list
@ -285,6 +298,7 @@ void fgDestroyWindow( SFG_Window* window, GLboolean needToClose )
SFG_Window *activeWindow = fgStructure.Window ;
INVOKE_WCB( *window, Destroy, ( ) );
fgSetWindow ( activeWindow ) ;
fgClearCallBacks( window );
}
if ( window->Parent != NULL )