[gtk+] a11y: Add _gtk_tree_view_accessible_add_state()

[Benjamin Otte <otte src gnome org>]

commit d9b71702dc004310d152d22b46232d02228502d4
Author: Benjamin Otte <otte redhat com>
Date:   Mon Dec 12 10:25:27 2011 +0100

    a11y: Add _gtk_tree_view_accessible_add_state()
    
    ... and _gtk_tree_view_accessible_remove_state(). They should be called
    by gtktreeview.c to notify about changes of state for a row.

 gtk/a11y/gtktreeviewaccessible.c |   58 ++++++++++++++++++++++++++++++++++++++
 gtk/a11y/gtktreeviewaccessible.h |    9 ++++++
 2 files changed, 67 insertions(+), 0 deletions(-)
---
diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
index f959392..77c3114 100644
--- a/gtk/a11y/gtktreeviewaccessible.c
+++ b/gtk/a11y/gtktreeviewaccessible.c
@@ -3084,3 +3084,61 @@ _gtk_tree_view_accessible_toggle_visibility (GtkTreeView       *treeview,
                                                 column,
                                                 id);
 }
+
+void
+_gtk_tree_view_accessible_add_state (GtkTreeView          *treeview,
+                                     GtkRBTree            *tree,
+                                     GtkRBNode            *node,
+                                     GtkCellRendererState  state)
+{
+  GtkTreeViewAccessible *accessible;
+  AtkObject *obj;
+  guint i;
+
+  obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview));
+  if (obj == NULL)
+    return;
+
+  accessible = GTK_TREE_VIEW_ACCESSIBLE (obj);
+
+  for (i = 0; i < gtk_tree_view_get_n_columns (treeview); i++)
+    {
+      GtkCellAccessible *cell = peek_cell (accessible,
+                                           tree, node,
+                                           gtk_tree_view_get_column (treeview, i));
+
+      if (cell == NULL)
+        continue;
+
+      _gtk_cell_accessible_state_changed (cell, state, 0);
+    }
+}
+
+void
+_gtk_tree_view_accessible_remove_state (GtkTreeView          *treeview,
+                                        GtkRBTree            *tree,
+                                        GtkRBNode            *node,
+                                        GtkCellRendererState  state)
+{
+  GtkTreeViewAccessible *accessible;
+  AtkObject *obj;
+  guint i;
+
+  obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview));
+  if (obj == NULL)
+    return;
+
+  accessible = GTK_TREE_VIEW_ACCESSIBLE (obj);
+
+  for (i = 0; i < gtk_tree_view_get_n_columns (treeview); i++)
+    {
+      GtkCellAccessible *cell = peek_cell (accessible,
+                                           tree, node,
+                                           gtk_tree_view_get_column (treeview, i));
+
+      if (cell == NULL)
+        continue;
+
+      _gtk_cell_accessible_state_changed (cell, 0, state);
+    }
+}
diff --git a/gtk/a11y/gtktreeviewaccessible.h b/gtk/a11y/gtktreeviewaccessible.h
index 0246ba9..27d9743 100644
--- a/gtk/a11y/gtktreeviewaccessible.h
+++ b/gtk/a11y/gtktreeviewaccessible.h
@@ -72,6 +72,15 @@ void            _gtk_tree_view_accessible_toggle_visibility
                                                         (GtkTreeView       *treeview,
                                                          GtkTreeViewColumn *column);
 
+void            _gtk_tree_view_accessible_add_state     (GtkTreeView       *treeview,
+                                                         GtkRBTree         *tree,
+                                                         GtkRBNode         *node,
+                                                         GtkCellRendererState state);
+void            _gtk_tree_view_accessible_remove_state  (GtkTreeView       *treeview,
+                                                         GtkRBTree         *tree,
+                                                         GtkRBNode         *node,
+                                                         GtkCellRendererState state);
+
 G_END_DECLS
 
 #endif /* __GTK_TREE_VIEW_ACCESSIBLE_H__ */