[gtk+] GtkContainerCellAccessible: add a private struct

[Matthias Clasen <matthiasc src gnome org>]

commit 0ad379708f79dbff916b1fcd431d3e3114bf8e25
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Oct 14 15:52:29 2012 -0400

    GtkContainerCellAccessible: add a private struct
    
    Move instance fields to a private struct, in preparation
    for installing a11y headers.
    This also required removing access to GtkContainerCellAccessible
    innards from the GtkCellAccessible implementation.

 gtk/a11y/gtkcellaccessible.c          |    2 +-
 gtk/a11y/gtkcontainercellaccessible.c |   52 +++++++++++++++++++-------------
 gtk/a11y/gtkcontainercellaccessible.h |   10 ++++--
 3 files changed, 38 insertions(+), 26 deletions(-)
---
diff --git a/gtk/a11y/gtkcellaccessible.c b/gtk/a11y/gtkcellaccessible.c
index 5d29dbb..35b9424 100644
--- a/gtk/a11y/gtkcellaccessible.c
+++ b/gtk/a11y/gtkcellaccessible.c
@@ -83,7 +83,7 @@ gtk_cell_accessible_get_index_in_parent (AtkObject *obj)
 
   parent = atk_object_get_parent (obj);
   if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
-    return g_list_index (GTK_CONTAINER_CELL_ACCESSIBLE (parent)->children, obj);
+    return g_list_index (_gtk_container_cell_accessible_get_children (GTK_CONTAINER_CELL_ACCESSIBLE (parent)), obj);
 
   parent = gtk_widget_get_accessible (gtk_accessible_get_widget (GTK_ACCESSIBLE (cell)));
   if (parent == NULL)
diff --git a/gtk/a11y/gtkcontainercellaccessible.c b/gtk/a11y/gtkcontainercellaccessible.c
index 400f04b..8ce249b 100644
--- a/gtk/a11y/gtkcontainercellaccessible.c
+++ b/gtk/a11y/gtkcontainercellaccessible.c
@@ -20,6 +20,11 @@
 #include <gtk/gtk.h>
 #include "gtkcontainercellaccessible.h"
 
+struct _GtkContainerCellAccessiblePrivate
+{
+  GList *children;
+  gint n_children;
+};
 
 G_DEFINE_TYPE (GtkContainerCellAccessible, _gtk_container_cell_accessible, GTK_TYPE_CELL_ACCESSIBLE)
 
@@ -29,7 +34,7 @@ gtk_container_cell_accessible_finalize (GObject *obj)
 {
   GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
 
-  g_list_free_full (container->children, g_object_unref);
+  g_list_free_full (container->priv->children, g_object_unref);
 
   G_OBJECT_CLASS (_gtk_container_cell_accessible_parent_class)->finalize (obj);
 }
@@ -40,7 +45,7 @@ gtk_container_cell_accessible_get_n_children (AtkObject *obj)
 {
   GtkContainerCellAccessible *cell = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
 
-  return cell->NChildren;
+  return cell->priv->n_children;
 }
 
 static AtkObject *
@@ -50,7 +55,7 @@ gtk_container_cell_accessible_ref_child (AtkObject *obj,
   GtkContainerCellAccessible *cell = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
   GList *l;
 
-  l = g_list_nth (cell->children, child);
+  l = g_list_nth (cell->priv->children, child);
   if (l == NULL)
     return NULL;
 
@@ -63,7 +68,7 @@ gtk_container_cell_accessible_update_cache (GtkCellAccessible *cell)
   GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (cell);
   GList *l;
 
-  for (l = container->children; l; l = l->next)
+  for (l = container->priv->children; l; l = l->next)
     {
       _gtk_cell_accessible_update_cache (l->data);
     }
@@ -75,7 +80,7 @@ gtk_container_cell_widget_set (GtkAccessible *accessible)
   GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (accessible);
   GList *l;
 
-  for (l = container->children; l; l = l->next)
+  for (l = container->priv->children; l; l = l->next)
     {
       gtk_accessible_set_widget (l->data, gtk_accessible_get_widget (accessible));
     }
@@ -89,7 +94,7 @@ gtk_container_cell_widget_unset (GtkAccessible *accessible)
   GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (accessible);
   GList *l;
 
-  for (l = container->children; l; l = l->next)
+  for (l = container->priv->children; l; l = l->next)
     {
       gtk_accessible_set_widget (l->data, NULL);
     }
@@ -114,31 +119,28 @@ _gtk_container_cell_accessible_class_init (GtkContainerCellAccessibleClass *klas
   accessible_class->widget_unset = gtk_container_cell_widget_unset;
 
   cell_class->update_cache = gtk_container_cell_accessible_update_cache;
+
+  g_type_class_add_private (g_object_class, sizeof (GtkContainerCellAccessiblePrivate));
 }
 
 static void
 _gtk_container_cell_accessible_init (GtkContainerCellAccessible *cell)
 {
+  cell->priv = G_TYPE_INSTANCE_GET_PRIVATE (cell,
+                                            GTK_TYPE_CONTAINER_CELL_ACCESSIBLE,
+                                            GtkContainerCellAccessiblePrivate);
 }
 
 GtkContainerCellAccessible *
 _gtk_container_cell_accessible_new (void)
 {
   GObject *object;
-  AtkObject *atk_object;
-  GtkContainerCellAccessible *container;
 
   object = g_object_new (GTK_TYPE_CONTAINER_CELL_ACCESSIBLE, NULL);
 
-  g_return_val_if_fail (object != NULL, NULL);
+  ATK_OBJECT (object)->role = ATK_ROLE_TABLE_CELL;
 
-  atk_object = ATK_OBJECT (object);
-  atk_object->role = ATK_ROLE_TABLE_CELL;
-
-  container = GTK_CONTAINER_CELL_ACCESSIBLE (object);
-  container->children = NULL;
-  container->NChildren = 0;
-  return container;
+  return GTK_CONTAINER_CELL_ACCESSIBLE (object);
 }
 
 void
@@ -148,8 +150,8 @@ _gtk_container_cell_accessible_add_child (GtkContainerCellAccessible *container,
   g_return_if_fail (GTK_IS_CONTAINER_CELL_ACCESSIBLE (container));
   g_return_if_fail (GTK_IS_CELL_ACCESSIBLE (child));
 
-  container->NChildren++;
-  container->children = g_list_append (container->children, child);
+  container->priv->n_children++;
+  container->priv->children = g_list_append (container->priv->children, child);
   atk_object_set_parent (ATK_OBJECT (child), ATK_OBJECT (container));
 }
 
@@ -159,8 +161,16 @@ _gtk_container_cell_accessible_remove_child (GtkContainerCellAccessible *contain
 {
   g_return_if_fail (GTK_IS_CONTAINER_CELL_ACCESSIBLE (container));
   g_return_if_fail (GTK_IS_CELL_ACCESSIBLE (child));
-  g_return_if_fail (container->NChildren > 0);
+  g_return_if_fail (container->priv->n_children > 0);
+
+  container->priv->children = g_list_remove (container->priv->children, child);
+  container->priv->n_children--;
+}
+
+GList *
+_gtk_conainer_cell_accessible_get_children (GtkContainerCellAccessible *container)
+{
+  g_return_val_if_fail (GTK_IS_CONTAINER_CELL_ACCESSIBLE (container), NULL);
 
-  container->children = g_list_remove (container->children, child);
-  container->NChildren--;
+  return container->priv->children;
 }
diff --git a/gtk/a11y/gtkcontainercellaccessible.h b/gtk/a11y/gtkcontainercellaccessible.h
index 3e1cd5f..479fcb1 100644
--- a/gtk/a11y/gtkcontainercellaccessible.h
+++ b/gtk/a11y/gtkcontainercellaccessible.h
@@ -30,14 +30,15 @@ G_BEGIN_DECLS
 #define GTK_IS_CONTAINER_CELL_ACCESSIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CONTAINER_CELL_ACCESSIBLE))
 #define GTK_CONTAINER_CELL_ACCESSIBLE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CONTAINER_CELL_ACCESSIBLE, GtkContainerCellAccessibleClass))
 
-typedef struct _GtkContainerCellAccessible      GtkContainerCellAccessible;
-typedef struct _GtkContainerCellAccessibleClass GtkContainerCellAccessibleClass;
+typedef struct _GtkContainerCellAccessible        GtkContainerCellAccessible;
+typedef struct _GtkContainerCellAccessibleClass   GtkContainerCellAccessibleClass;
+typedef struct _GtkContainerCellAccessiblePrivate GtkContainerCellAccessiblePrivate;
 
 struct _GtkContainerCellAccessible
 {
   GtkCellAccessible parent;
-  GList *children;
-  gint NChildren;
+
+  GtkContainerCellAccessiblePrivate *priv;
 };
 
 struct _GtkContainerCellAccessibleClass
@@ -52,6 +53,7 @@ void                        _gtk_container_cell_accessible_add_child    (GtkCont
                                                                          GtkCellAccessible          *child);
 void                        _gtk_container_cell_accessible_remove_child (GtkContainerCellAccessible *container,
                                                                          GtkCellAccessible          *child);
+GList                     *_gtk_container_cell_accessible_get_children  (GtkContainerCellAccessible *container);
 
 G_END_DECLS