Add setCellClass: / cellClass

Source/NSPathControl.m

@@ -37,6 +37,7 @@
 #import "AppKit/NSTrackingArea.h"
 
 static NSNotificationCenter *nc = nil;
+Class pathCellClass;
 
 @interface NSPathCell (PathControlPrivate)
 - (void) _setClickedPathComponentCell: (NSPathComponentCell *)c;
@@ -58,6 +59,17 @@ static NSNotificationCenter *nc = nil;
     }
 }
 
+
++ (Class) cellClass
+{
+  return pathCellClass;
+}
+
++ (void) setCellClass: (Class)classId
+{
+  pathCellClass = classId;
+}
+
 - (void) _resetTrackingRect
 {
   [[self superview] removeTrackingRect: _trackingTag];