--- /dev/null
+/* xscreensaver, Copyright (c) 2006 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ */
+
+/* XScreenSaver uses XML files to describe the user interface for configuring
+ the various screen savers. These files live in .../hacks/config/ and
+ say relatively high level things like: "there should be a checkbox
+ labelled "Leave Trails", and when it is checked, add the option '-trails'
+ to the command line when launching the program."
+
+ This code reads that XML and constructs a Cocoa interface from it.
+ The Cocoa controls are hooked up to NSUserDefaultsController to save
+ those settings into the MacOS preferences system. The Cocoa preferences
+ names are the same as the resource names specified in the screenhack's
+ 'options' array (we use that array to map the command line switches
+ specified in the XML to the resource names to use).
+ */
+
+#import <Cocoa/Cocoa.h>
+#import "jwxyz.h"
+
+@interface XScreenSaverConfigSheet : NSWindow
+{
+ NSUserDefaultsController *userDefaultsController;
+}
+
+- (id)initWithXMLFile: (NSString *) xml_file
+ options: (const XrmOptionDescRec *) opts
+ controller: (NSUserDefaultsController *) prefs;
+
+@end