Patch by Alex Wilson: Added archiving/unarchiving support to BSplitView.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37612 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/SplitView.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006, Haiku, Inc. All rights reserved.
+ * Copyright 2006-2010, Haiku, Inc. All rights reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef	_SPLIT_VIEW_H
@@ -16,6 +16,7 @@ public:
 									enum orientation orientation
 										= B_HORIZONTAL,
 									float spacing = 0.0f);
+								BSplitView(BMessage* from);
 	virtual						~BSplitView();
 
 			void				SetInsets(float left, float top, float right,
@@ -59,6 +60,10 @@ public:
 	virtual	void				SetLayout(BLayout* layout);
 									// overridden to avoid use
 
+	virtual status_t			Archive(BMessage* into, bool deep = true) const;
+	virtual status_t			AllUnarchived(const BMessage* from);
+	static	BArchivable*		Instantiate(BMessage* from);
+
 protected:
 	virtual	void				DrawSplitter(BRect frame,
 									const BRect& updateRect,