/*
* Function to add a window to the linked list of windows to destroy.
* Subwindows are automatically added because they hang from the window
* structure.
*/
void fgAddToWindowDestroyList( SFG_Window* window )
{
SFG_WindowList *new_list_entry =
( SFG_WindowList* )malloc( sizeof(SFG_WindowList ) );
new_list_entry->window = window;
fgListAppend( &fgStructure.WindowsToDestroy, &new_list_entry->node );
/* Check if the window is the current one... */
if( fgStructure.CurrentWindow == window )
fgStructure.CurrentWindow = 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.
*/
{
FGCBDestroy destroy = (FGCBDestroy)FETCH_WCB( *window, Destroy );
fghClearCallBacks( window );
SET_WCB( *window, Destroy, destroy );
}
}
/*
* This private function creates, opens and adds to the hierarchy
* a freeglut window complete with OpenGL context and stuff...
*
* If parent is set to NULL, the window created will be a topmost one.
*/
SFG_Window* fgCreateWindow( SFG_Window* parent, const char* title,
GLboolean positionUse, int x, int y,
GLboolean sizeUse, int w, int h,
GLboolean gameMode, GLboolean isMenu )
{
/* Have the window object created */
SFG_Window *window = (SFG_Window *)calloc( 1, sizeof(SFG_Window) );
fgPlatformCreateWindow ( window );
fghClearCallBacks( window );
SET_WCB( *window, Reshape, fghDefaultReshape);
/* Initialize the object properties */
window->ID = ++fgStructure.WindowID;
fgListInit( &window->Children );
if( parent )
{
fgListAppend( &parent->Children, &window->Node );
window->Parent = parent;
}
else
fgListAppend( &fgStructure.Windows, &window->Node );
/* Set the default mouse cursor */
window->State.Cursor = GLUT_CURSOR_INHERIT;
/* Mark window as menu if a menu is to be created */
window->IsMenu = isMenu;
/*
* Open the window now. The fgOpenWindow() function is system
* dependant, and resides in freeglut_window.c. Uses fgState.
*/
fgOpenWindow( window, title, positionUse, x, y, sizeUse, w, h, gameMode,
(GLboolean)(parent ? GL_TRUE : GL_FALSE) );
return window;
}
