Fixed NSMenu removeAllItems to also remove the cell views.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/branches/gnustep_testplant_branch@38849 72102866-910b-0410-8b05-ffd578937521

Headers/AppKit/NSMenuView.h

@@ -249,6 +249,12 @@
  */
 - (void) itemRemoved: (NSNotification *)notification;
 
+/**
+   Removes all cells, removes highlighting, marks cell and menu view as 
+   needing to be resized. 
+ */
+- (void) allItemsRemoved;//: (NSNotification *)notification;
+
 /***********************************************************************
  * Working with submenus
  ***********************************************************************/

Source/NSMenu.m

@@ -839,6 +839,7 @@ static BOOL menuBarVisible = YES;
   [_items removeAllObjects];
   _menu.needsSizing = YES;
   [(NSMenuView*)_view setNeedsSizing: YES];
+  [(NSMenuView*)_view allItemsRemoved];
   [self menuChanged];
 }
 

Source/NSMenuView.m

@@ -559,6 +559,16 @@ static float menuBarHeight = 0.0;
   [self setNeedsDisplay: YES];
 }
 
+- (void) allItemsRemoved
+{
+  [self setHighlightedItemIndex: -1];
+  [_itemCells removeAllObjects];
+
+  // Mark the menu view as needing to be resized.
+  [self setNeedsSizing: YES];
+  [self setNeedsDisplay: YES];
+}
+
 /*
  * Working with Submenus.
  */