Set _windowNum to 0 so the backend window will be recreated when required.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@16715 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,11 @@
+2003-05-13 20:19  Alexander Malmberg <alexander@malmberg.org>
+
+	* Source/NSButton.m (-setState:, -setNextState): Mark the view
+	as needing display, don't force a display.
+
+	* Source/NSWindow.m (-_terminateBackendWindow): Set _windowNum to 0
+	so the window will be recreated the next time it is needed.
+
 2003-05-12 17:30  Alexander Malmberg <alexander@malmberg.org>
 
 	* Source/NSView.m (-lockFocusInRect:): Don't save the clipping path

Source/NSWindow.m

@@ -613,6 +613,12 @@ static NSNotificationCenter *nc = nil;
 			     defer: NO];
 }
 
+/*
+It is important to make sure that the window is in a meaningful state after
+this has been called, and that the backend window can be recreated later,
+since one-shot windows may have their backend windows created and terminated
+many times.
+*/
 - (void) _terminateBackendWindow
 {
   NSGraphicsContext *context = GSCurrentContext();
@@ -628,6 +634,7 @@ static NSNotificationCenter *nc = nil;
     {
       [GSServerForWindow(self) termwindow: _windowNum];
       NSMapRemove(windowmaps, (void*)_windowNum);
+      _windowNum = 0;
     }
 }