[gtk+] Add _gtk_box_get_children() internal function

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 76267f9d0621c07b13e56f6ffd93e942111dfbcf
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Mon Jul 26 15:24:15 2010 +0200

    Add _gtk_box_get_children() internal function
    
    https://bugzilla.gnome.org/show_bug.cgi?id=625300

 gtk/gtkbbox.c      |    4 ++--
 gtk/gtkbox.c       |   24 ++++++++++++++++++++++++
 gtk/gtkbox.h       |    1 +
 gtk/gtkstatusbar.c |   10 +++++++---
 4 files changed, 34 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkbbox.c b/gtk/gtkbbox.c
index 582e447..1720d72 100644
--- a/gtk/gtkbbox.c
+++ b/gtk/gtkbbox.c
@@ -457,7 +457,7 @@ _gtk_button_box_child_requisition (GtkWidget *widget,
 
   nchildren = 0;
   nsecondaries = 0;
-  list = children = gtk_container_get_children (GTK_CONTAINER (bbox));
+  list = children = _gtk_box_get_children (GTK_BOX (bbox));
   needed_width = child_min_width;
   needed_height = child_min_height;  
   ipad_w = ipad_x * 2;
@@ -790,7 +790,7 @@ gtk_button_box_size_allocate (GtkWidget     *widget,
         childspace = child_height + childspacing;
       }
 
-  list = children = gtk_container_get_children (GTK_CONTAINER (box));
+  list = children = _gtk_box_get_children (GTK_BOX (box));
 
   while (children)
     {
diff --git a/gtk/gtkbox.c b/gtk/gtkbox.c
index c372a1d..84c28de 100644
--- a/gtk/gtkbox.c
+++ b/gtk/gtkbox.c
@@ -1770,3 +1770,27 @@ gtk_box_forall (GtkContainer *container,
 	(* callback) (child->widget, callback_data);
     }
 }
+
+GList *
+_gtk_box_get_children (GtkBox *box)
+{
+  GtkBoxPriv *priv;
+  GtkBoxChild *child;
+  GList *children;
+  GList *retval = NULL;
+
+  g_return_val_if_fail (GTK_IS_BOX (box), NULL);
+
+  priv = box->priv;
+
+  children = priv->children;
+  while (children)
+    {
+      child = children->data;
+      children = children->next;
+
+      retval = g_list_prepend (retval, child->widget);
+    }
+
+  return g_list_reverse (retval);
+}
diff --git a/gtk/gtkbox.h b/gtk/gtkbox.h
index 0a17af2..85a2f4a 100644
--- a/gtk/gtkbox.h
+++ b/gtk/gtkbox.h
@@ -109,6 +109,7 @@ void        _gtk_box_set_old_defaults   (GtkBox         *box);
 gboolean    _gtk_box_get_spacing_set    (GtkBox         *box);
 void        _gtk_box_set_spacing_set    (GtkBox         *box,
                                          gboolean        spacing_set);
+GList      *_gtk_box_get_children       (GtkBox         *box);
 
 G_END_DECLS
 
diff --git a/gtk/gtkstatusbar.c b/gtk/gtkstatusbar.c
index f6972f9..ded0620 100644
--- a/gtk/gtkstatusbar.c
+++ b/gtk/gtkstatusbar.c
@@ -1034,13 +1034,14 @@ has_extra_children (GtkStatusbar *statusbar)
   GtkPackType child_pack_type, frame_pack_type;
   GtkWidget *child, *frame;
   GList *l, *children;
+  gboolean retval = FALSE;
 
   /* If the internal frame has been modified assume we have extra children */
   if (gtk_bin_get_child (GTK_BIN (priv->frame)) != priv->label)
     return TRUE;
 
   frame = NULL;
-  children = gtk_container_get_children (GTK_CONTAINER (statusbar));
+  children = _gtk_box_get_children (GTK_BOX (statusbar));
   for (l = children; l; l = l->next)
     {
       frame = l->data;
@@ -1063,12 +1064,15 @@ has_extra_children (GtkStatusbar *statusbar)
                                    NULL, NULL, NULL, &child_pack_type);
 
       if (frame_pack_type == GTK_PACK_START || child_pack_type == GTK_PACK_END)
-	return TRUE;
+        {
+	  retval = TRUE;
+	  break;
+	}
     }
 
   g_list_free (children);
 
-  return FALSE;
+  return retval;
 }
 
 static void