[gtk+] GtkTreeViewColumn: start padding at 0

[Ryan Lortie <desrt src gnome org>]

commit e3b9ea5ab6d1f0c419fd9a79330e80cc56492ce2
Author: Ryan Lortie <desrt desrt ca>
Date:   Thu Sep 26 13:37:46 2013 -0400

    GtkTreeViewColumn: start padding at 0
    
    If we start with a padding of -1 then it can leak out of the size
    allocation request for the column when the treeview is empty.  The
    GtkTreeView will then collect these -1 values and add them together,
    returning -n where 'n' is the number of columns.
    
    This is usually not a problem because treeviews tend to be used with a
    scrollbar and the width of the scrollbar will be added to this number
    bringing it into positive territory again.  On Ubuntu, with overlay
    scrollbars, this is not the case, however.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703062

 gtk/gtktreeviewcolumn.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktreeviewcolumn.c b/gtk/gtktreeviewcolumn.c
index ea16706..e1846d5 100644
--- a/gtk/gtktreeviewcolumn.c
+++ b/gtk/gtktreeviewcolumn.c
@@ -464,7 +464,7 @@ gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
   priv->button = NULL;
   priv->xalign = 0.0;
   priv->width = 0;
-  priv->padding = -1;
+  priv->padding = 0;
   priv->min_width = -1;
   priv->max_width = -1;
   priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;