* Added a BWindow::InViewTransaction() that determines whether or not the

window is currently updating its drawings as suggested by Stippi.
* Add this method to decide whether to call _FontChanged() in
  BListView::SetFont().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34109 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/Window.h

@@ -185,6 +185,7 @@ public:
 			void				EndViewTransaction();
 									// referred as CommitViewTransaction()
 									// in BeBook
+			bool				InViewTransaction() const;
 
 			BRect				Bounds() const;
 			BRect				Frame() const;