[gtk+] Avoid recursive calls to gtk_tree_view_top_row_to_dy()

[Kristian Rietveld <kristian src gnome org>]

commit f77042aae2e33e99e2824058ff516b114d01b78a
Author: Kristian Rietveld <kris gtk org>
Date:   Sun Sep 6 20:23:05 2009 +0200

    Avoid recursive calls to gtk_tree_view_top_row_to_dy()
    
    Commit 3f306a40422e367ef03b9e6f6c80dec9fc932602 made it possible for
    gtk_tree_view_top_row_to_dy() to be called recursively.  (In a different
    way than was already guarded for).  This caused a single test case in
    the scrolling test suite to fail.  We now also guard for recursive calls at
    the beginning of gtk_tree_view_top_row_to_dy().

 gtk/gtktreeview.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 665720f..a0fdf33 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -6432,6 +6432,10 @@ gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
   GtkRBNode *node;
   int new_dy;
 
+  /* Avoid recursive calls */
+  if (tree_view->priv->in_top_row_to_dy)
+    return;
+
   if (tree_view->priv->top_row)
     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
   else