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,

src/kits/interface/SplitView.cpp

@@ -7,6 +7,7 @@
 
 #include <stdio.h>
 
+#include <Archivable.h>
 #include <ControlLook.h>
 #include <Cursor.h>
 
@@ -23,6 +24,15 @@ BSplitView::BSplitView(enum orientation orientation, float spacing)
 }
 
 
+BSplitView::BSplitView(BMessage* from)
+	:
+	BView(BUnarchiver::PrepareArchive(from)),
+	fSplitLayout(NULL)
+{
+	BUnarchiver(from).Finish();
+}
+
+
 BSplitView::~BSplitView()
 {
 }
@@ -216,6 +226,37 @@ BSplitView::SetLayout(BLayout* layout)
 }
 
 
+status_t
+BSplitView::Archive(BMessage* into, bool deep) const
+{
+	return BView::Archive(into, deep);
+}
+
+
+status_t
+BSplitView::AllUnarchived(const BMessage* from)
+{
+	status_t err = BView::AllUnarchived(from);
+	if (err == B_OK) {
+		fSplitLayout = dynamic_cast<BSplitLayout*>(GetLayout());
+		if (!fSplitLayout && GetLayout())
+			return B_BAD_TYPE;
+		else if (!fSplitLayout)
+			return B_ERROR;
+	}
+	return err;
+}
+
+
+BArchivable*
+BSplitView::Instantiate(BMessage* from)
+{
+	if (validate_instantiation(from, "BSplitView"))
+		return new BSplitView(from);
+	return NULL;
+}
+
+
 void
 BSplitView::DrawSplitter(BRect frame, const BRect& updateRect,
 	enum orientation orientation, bool pressed)