[evolution] Add e_tree_memory_get_n_children().

[Matthew Barnes <mbarnes src gnome org>]

commit b58e9944529a890c5b9672cf6e5eb4f930112b63
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Jun 15 13:11:49 2013 -0400

    Add e_tree_memory_get_n_children().
    
    Replaces e_tree_memory_get_children().
    
    The "paths" output parameter was unused, and was a bad idea anyway.

 .../evolution-util/evolution-util-sections.txt     |    2 +-
 e-util/e-cell-tree.c                               |    2 +-
 e-util/e-tree-memory.c                             |   26 +++----------------
 e-util/e-tree-model.c                              |    9 +++----
 e-util/e-tree-model.h                              |   11 ++++----
 5 files changed, 15 insertions(+), 35 deletions(-)
---
diff --git a/doc/reference/evolution-util/evolution-util-sections.txt 
b/doc/reference/evolution-util/evolution-util-sections.txt
index e39ec99..2cb2911 100644
--- a/doc/reference/evolution-util/evolution-util-sections.txt
+++ b/doc/reference/evolution-util/evolution-util-sections.txt
@@ -4345,7 +4345,7 @@ e_tree_model_node_get_first_child
 e_tree_model_node_get_next
 e_tree_model_node_is_root
 e_tree_model_node_is_expandable
-e_tree_model_node_get_children
+e_tree_model_node_get_n_children
 e_tree_model_node_depth
 e_tree_model_icon_at
 e_tree_model_get_expanded_default
diff --git a/e-util/e-cell-tree.c b/e-util/e-cell-tree.c
index 085fb0c..ba5779c 100644
--- a/e-util/e-cell-tree.c
+++ b/e-util/e-cell-tree.c
@@ -701,7 +701,7 @@ ect_print (ECellView *ecell_view,
                        gint depth;
 
                        if (!e_tree_model_node_is_root (tree_model, node)
-                           || e_tree_model_node_get_children (tree_model, node, NULL) > 0) {
+                           || e_tree_model_node_get_n_children (tree_model, node) > 0) {
                                cairo_move_to (
                                        cr,
                                        offset - INDENT_AMOUNT / 2,
diff --git a/e-util/e-tree-memory.c b/e-util/e-tree-memory.c
index b3aadd8..743aab0 100644
--- a/e-util/e-tree-memory.c
+++ b/e-util/e-tree-memory.c
@@ -111,28 +111,10 @@ tree_memory_is_expandable (ETreeModel *etm,
 }
 
 static guint
-tree_memory_get_children (ETreeModel *etm,
-                          ETreePath path,
-                          ETreePath **nodes)
+tree_memory_get_n_children (ETreeModel *etm,
+                            ETreePath path)
 {
-       guint n_children;
-
-       n_children = g_node_n_children ((GNode *) path);
-
-       if (nodes != NULL) {
-               GNode *child;
-               gint ii = 0;
-
-               (*nodes) = g_new (ETreePath, n_children);
-
-               child = g_node_first_child ((GNode *) path);
-               while (child != NULL) {
-                       (*nodes)[ii++] = child;
-                       child = g_node_next_sibling (child);
-               }
-       }
-
-       return n_children;
+       return g_node_n_children ((GNode *) path);
 }
 
 static guint
@@ -169,7 +151,7 @@ e_tree_memory_class_init (ETreeMemoryClass *class)
 
        tree_model_class->is_root = tree_memory_is_root;
        tree_model_class->is_expandable = tree_memory_is_expandable;
-       tree_model_class->get_children = tree_memory_get_children;
+       tree_model_class->get_n_children = tree_memory_get_n_children;
        tree_model_class->depth = tree_memory_depth;
        tree_model_class->get_expanded_default = tree_memory_get_expanded_default;
 }
diff --git a/e-util/e-tree-model.c b/e-util/e-tree-model.c
index d866da8..d469d23 100644
--- a/e-util/e-tree-model.c
+++ b/e-util/e-tree-model.c
@@ -399,18 +399,17 @@ e_tree_model_node_is_expandable (ETreeModel *tree_model,
 }
 
 guint
-e_tree_model_node_get_children (ETreeModel *tree_model,
-                                ETreePath path,
-                                ETreePath **paths)
+e_tree_model_node_get_n_children (ETreeModel *tree_model,
+                                  ETreePath path)
 {
        ETreeModelClass *class;
 
        g_return_val_if_fail (E_IS_TREE_MODEL (tree_model), 0);
 
        class = E_TREE_MODEL_GET_CLASS (tree_model);
-       g_return_val_if_fail (class->get_children != NULL, 0);
+       g_return_val_if_fail (class->get_n_children != NULL, 0);
 
-       return class->get_children (tree_model, path, paths);
+       return class->get_n_children (tree_model, path);
 }
 
 /**
diff --git a/e-util/e-tree-model.h b/e-util/e-tree-model.h
index 330bcd9..431f93e 100644
--- a/e-util/e-tree-model.h
+++ b/e-util/e-tree-model.h
@@ -84,9 +84,8 @@ struct _ETreeModelClass {
                                                 ETreePath path);
        gboolean        (*is_expandable)        (ETreeModel *tree_model,
                                                 ETreePath path);
-       guint           (*get_children)         (ETreeModel *tree_model,
-                                                ETreePath path,
-                                                ETreePath **paths);
+       guint           (*get_n_children)       (ETreeModel *tree_model,
+                                                ETreePath path);
        guint           (*depth)                (ETreeModel *tree_model,
                                                 ETreePath path);
 
@@ -179,9 +178,9 @@ gboolean    e_tree_model_node_is_root       (ETreeModel *tree_model,
                                                 ETreePath path);
 gboolean       e_tree_model_node_is_expandable (ETreeModel *tree_model,
                                                 ETreePath path);
-guint          e_tree_model_node_get_children  (ETreeModel *tree_model,
-                                                ETreePath path,
-                                                ETreePath **paths);
+guint          e_tree_model_node_get_n_children
+                                               (ETreeModel *tree_model,
+                                                ETreePath path);
 guint          e_tree_model_node_depth         (ETreeModel *tree_model,
                                                 ETreePath path);
 GdkPixbuf *    e_tree_model_icon_at            (ETreeModel *tree_model,