[gtk+] GtkBooleanCellAccessible: add a private struct

[Matthias Clasen <matthiasc src gnome org>]

commit 5226327e1129e08e07ad030f61d32d62dff9284f
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Oct 14 02:40:20 2012 -0400

    GtkBooleanCellAccessible: add a private struct
    
    Move instance fields to a private struct, in preparation
    for installing a11y headers.

 gtk/a11y/gtkbooleancellaccessible.c |   23 +++++++++++++++++------
 gtk/a11y/gtkbooleancellaccessible.h |    9 +++++----
 2 files changed, 22 insertions(+), 10 deletions(-)
---
diff --git a/gtk/a11y/gtkbooleancellaccessible.c b/gtk/a11y/gtkbooleancellaccessible.c
index e8e9c62..af64c58 100644
--- a/gtk/a11y/gtkbooleancellaccessible.c
+++ b/gtk/a11y/gtkbooleancellaccessible.c
@@ -20,6 +20,12 @@
 #include <gtk/gtk.h>
 #include "gtkbooleancellaccessible.h"
 
+struct _GtkBooleanCellAccessiblePrivate
+{
+  gboolean cell_value;
+  gboolean cell_sensitive;
+};
+
 static AtkActionIface *parent_action_iface;
 
 static gint
@@ -82,10 +88,10 @@ gtk_boolean_cell_accessible_ref_state_set (AtkObject *accessible)
 
   state_set = ATK_OBJECT_CLASS (_gtk_boolean_cell_accessible_parent_class)->ref_state_set (accessible);
 
-  if (cell->cell_value)
+  if (cell->priv->cell_value)
     atk_state_set_add_state (state_set, ATK_STATE_CHECKED);
 
-  if (cell->cell_sensitive)
+  if (cell->priv->cell_sensitive)
     atk_state_set_add_state (state_set, ATK_STATE_SENSITIVE);
   else
     atk_state_set_remove_state (state_set, ATK_STATE_SENSITIVE);
@@ -105,16 +111,16 @@ gtk_boolean_cell_accessible_update_cache (GtkCellAccessible *cell)
                 "sensitive", &sensitive,
                 NULL);
 
-  if (boolean_cell->cell_value != active)
+  if (boolean_cell->priv->cell_value != active)
     {
-      boolean_cell->cell_value = !boolean_cell->cell_value;
+      boolean_cell->priv->cell_value = !boolean_cell->priv->cell_value;
 
       atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_CHECKED, active);
     }
 
-  if (boolean_cell->cell_sensitive != sensitive)
+  if (boolean_cell->priv->cell_sensitive != sensitive)
     {
-      boolean_cell->cell_sensitive = !boolean_cell->cell_sensitive;
+      boolean_cell->priv->cell_sensitive = !boolean_cell->priv->cell_sensitive;
 
       atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_CHECKED, sensitive);
     }
@@ -129,10 +135,15 @@ _gtk_boolean_cell_accessible_class_init (GtkBooleanCellAccessibleClass *klass)
   atkobject_class->ref_state_set = gtk_boolean_cell_accessible_ref_state_set;
 
   cell_class->update_cache = gtk_boolean_cell_accessible_update_cache;
+
+  g_type_class_add_private (klass, sizeof (GtkBooleanCellAccessiblePrivate));
 }
 
 static void
 _gtk_boolean_cell_accessible_init (GtkBooleanCellAccessible *cell)
 {
+  cell->priv =  G_TYPE_INSTANCE_GET_PRIVATE (cell,
+                                             GTK_TYPE_BOOLEAN_CELL_ACCESSIBLE,
+                                             GtkBooleanCellAccessiblePrivate);
 }
 
diff --git a/gtk/a11y/gtkbooleancellaccessible.h b/gtk/a11y/gtkbooleancellaccessible.h
index 1d32b72..f711fed 100644
--- a/gtk/a11y/gtkbooleancellaccessible.h
+++ b/gtk/a11y/gtkbooleancellaccessible.h
@@ -30,14 +30,15 @@ G_BEGIN_DECLS
 #define GTK_IS_BOOLEAN_CELL_ACCESSIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_BOOLEAN_CELL_ACCESSIBLE))
 #define GTK_BOOLEAN_CELL_ACCESSIBLE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_BOOLEAN_CELL_ACCESSIBLE, GtkBooleanCellAccessibleClass))
 
-typedef struct _GtkBooleanCellAccessible      GtkBooleanCellAccessible;
-typedef struct _GtkBooleanCellAccessibleClass GtkBooleanCellAccessibleClass;
+typedef struct _GtkBooleanCellAccessible        GtkBooleanCellAccessible;
+typedef struct _GtkBooleanCellAccessibleClass   GtkBooleanCellAccessibleClass;
+typedef struct _GtkBooleanCellAccessiblePrivate GtkBooleanCellAccessiblePrivate;
 
 struct _GtkBooleanCellAccessible
 {
   GtkRendererCellAccessible parent;
-  gboolean cell_value;
-  gboolean cell_sensitive;
+
+  GtkBooleanCellAccessiblePrivate *priv;
 };
 
 struct _GtkBooleanCellAccessibleClass