Clean up for NSTextFieldCell and resulting changes to sub classes.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@27260 72102866-910b-0410-8b05-ffd578937521

Headers/AppKit/NSTextFieldCell.h

@@ -57,9 +57,6 @@ typedef enum _NSTextFieldBezelStyle
 
   // Think of the following ones as of two BOOL ivars
 #define _textfieldcell_draws_background _cell.subclass_bool_one
-  // The following is different from _draws_background 
-  // if we are using a semi-transparent color.
-#define _textfieldcell_is_opaque _cell.subclass_bool_two
 #define _textfieldcell_placeholder_is_attributed_string _cell.subclass_bool_three
   id _placeholder;
 }
@@ -90,4 +87,13 @@ typedef enum _NSTextFieldBezelStyle
 
 @end
 
+// 
+// Methods that are private GNUstep extensions
+//
+@interface NSTextFieldCell (PrivateMethods)
+
+- (void) _drawBackgroundWithFrame: (NSRect)cellFrame 
+                           inView: (NSView*)controlView;
+@end
+
 #endif // _GNUstep_H_NSTextFieldCell