Added and implemented some methods for the handling of richt text.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@11488 72102866-910b-0410-8b05-ffd578937521

Source/NSTextField.m

@@ -544,6 +544,34 @@ static Class textFieldCellClass;
   return YES;
 }
 
+//
+// Rich Text
+//
+- (void)setAllowsEditingTextAttributes:(BOOL)flag
+{
+  [_cell setAllowsEditingTextAttributes: flag];
+}
+
+- (BOOL)allowsEditingTextAttributes
+{
+  return [_cell allowsEditingTextAttributes];
+}
+
+- (void)setImportsGraphics:(BOOL)flag
+{
+  [_cell setImportsGraphics: flag];
+}
+
+- (BOOL)importsGraphics
+{
+  return [_cell importsGraphics];
+}
+
+- (void)setTitleWithMnemonic:(NSString *)aString
+{
+  [_cell setTitleWithMnemonic: aString];
+}
+
 //
 // NSCoding protocol
 //