[gtk+] API: treeview: Add gtk_tree_view_get_n_columns()

[Benjamin Otte <otte src gnome org>]

commit 18181f5417986fee027da01c51f7057057f95646
Author: Benjamin Otte <otte redhat com>
Date:   Tue Nov 15 16:37:24 2011 +0100

    API: treeview: Add gtk_tree_view_get_n_columns()

 docs/reference/gtk/gtk3-sections.txt |    1 +
 gtk/gtk.symbols                      |    1 +
 gtk/gtktreeview.c                    |   18 ++++++++++++++++++
 gtk/gtktreeview.h                    |    1 +
 4 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index b9c9fb8..52f9713 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -4349,6 +4349,7 @@ gtk_tree_view_remove_column
 gtk_tree_view_insert_column
 gtk_tree_view_insert_column_with_attributes
 gtk_tree_view_insert_column_with_data_func
+gtk_tree_view_get_n_columns
 gtk_tree_view_get_column
 gtk_tree_view_get_columns
 gtk_tree_view_move_column_after
diff --git a/gtk/gtk.symbols b/gtk/gtk.symbols
index 2f34a4a..237d093 100644
--- a/gtk/gtk.symbols
+++ b/gtk/gtk.symbols
@@ -3381,6 +3381,7 @@ gtk_tree_view_get_hover_expand
 gtk_tree_view_get_hover_selection
 gtk_tree_view_get_level_indentation
 gtk_tree_view_get_model
+gtk_tree_view_get_n_columns
 gtk_tree_view_get_path_at_pos
 gtk_tree_view_get_reorderable
 gtk_tree_view_get_row_separator_func
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 1fe6031..9d75737 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -12140,6 +12140,24 @@ gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_vie
 }
 
 /**
+ * gtk_tree_view_get_n_columns:
+ * @tree_view: a #GtkTreeView
+ *
+ * Queries the number of columns in the given @tree_view.
+ *
+ * Returns: The number of columns in the @tree_view
+ *
+ * Since: 3.4
+ **/
+guint
+gtk_tree_view_get_n_columns (GtkTreeView *tree_view)
+{
+  g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
+
+  return tree_view->priv->n_columns;
+}
+
+/**
  * gtk_tree_view_get_column:
  * @tree_view: A #GtkTreeView.
  * @n: The position of the column, counting from 0.
diff --git a/gtk/gtktreeview.h b/gtk/gtktreeview.h
index 5275869..697a61a 100644
--- a/gtk/gtktreeview.h
+++ b/gtk/gtktreeview.h
@@ -257,6 +257,7 @@ gint                   gtk_tree_view_insert_column_with_data_func  (GtkTreeView
                                                                     GtkTreeCellDataFunc        func,
                                                                     gpointer                   data,
                                                                     GDestroyNotify             dnotify);
+guint                  gtk_tree_view_get_n_columns                 (GtkTreeView               *tree_view);
 GtkTreeViewColumn     *gtk_tree_view_get_column                    (GtkTreeView               *tree_view,
 								    gint                       n);
 GList                 *gtk_tree_view_get_columns                   (GtkTreeView               *tree_view);