[egg-list-box/flow-box-enhancements] Add egg_flow_box_get_child_at_index

[Matthias Clasen <matthiasc src gnome org>]

commit 218cd413f396014f1ae63b05bd203126be82ea38
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Sep 27 20:57:10 2013 -0400

    Add egg_flow_box_get_child_at_index
    
    And use it instead of iterating over all children.

 egg-flow-box-accessible.c       |    9 +++------
 egg-flow-box-child-accessible.c |    2 +-
 egg-flow-box.c                  |   23 ++++++++++++++++++++---
 egg-flow-box.h                  |    5 +++--
 4 files changed, 27 insertions(+), 12 deletions(-)
---
diff --git a/egg-flow-box-accessible.c b/egg-flow-box-accessible.c
index 83e1161..16b81fe 100644
--- a/egg-flow-box-accessible.c
+++ b/egg-flow-box-accessible.c
@@ -210,18 +210,15 @@ egg_flow_box_accessible_is_child_selected (AtkSelection *selection,
                                            gint          idx)
 {
   GtkWidget *box;
-  GtkWidget *widget;
-  GList *children;
   EggFlowBoxChild *child;
 
   box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
   if (box == NULL)
     return FALSE;
 
-  children = gtk_container_get_children (GTK_CONTAINER (box));
-  child = g_list_nth_data (children, idx);
-  g_list_free (children);
-  return egg_flow_box_is_child_selected (EGG_FLOW_BOX (box), child);
+  child = egg_flow_box_get_child_at_index (EGG_FLOW_BOX (box), idx);
+
+  return egg_flow_box_child_is_selected (child);
 }
 
 static void atk_selection_interface_init (AtkSelectionIface *iface)
diff --git a/egg-flow-box-child-accessible.c b/egg-flow-box-child-accessible.c
index 2552db1..7124341 100644
--- a/egg-flow-box-child-accessible.c
+++ b/egg-flow-box-child-accessible.c
@@ -52,7 +52,7 @@ egg_flow_box_child_accessible_ref_state_set (AtkObject *obj)
       if (egg_flow_box_get_selection_mode (EGG_FLOW_BOX (parent)) != GTK_SELECTION_NONE)
         atk_state_set_add_state (state_set, ATK_STATE_SELECTABLE);
 
-      if (egg_flow_box_is_child_selected (EGG_FLOW_BOX (parent), EGG_FLOW_BOX_CHILD (widget)))
+      if (egg_flow_box_child_is_selected (EGG_FLOW_BOX_CHILD (widget)))
         atk_state_set_add_state (state_set, ATK_STATE_SELECTED);
     }
 
diff --git a/egg-flow-box.c b/egg-flow-box.c
index 0e86f16..59a36b6 100644
--- a/egg-flow-box.c
+++ b/egg-flow-box.c
@@ -3839,15 +3839,14 @@ egg_flow_box_unselect_child (EggFlowBox      *box,
 }
 
 gboolean
-egg_flow_box_is_child_selected (EggFlowBox      *box,
-                                EggFlowBoxChild *child)
+egg_flow_box_child_is_selected (EggFlowBoxChild *child)
 {
   EggFlowBoxChildPrivate *priv;
 
-  g_return_if_fail (EGG_IS_FLOW_BOX (box));
   g_return_if_fail (EGG_IS_FLOW_BOX_CHILD (child));
 
   priv = egg_flow_box_child_get_instance_private (child);
+
   return priv->selected;
 }
 
@@ -4089,3 +4088,21 @@ egg_flow_box_insert (EggFlowBox *box,
   egg_flow_box_apply_filter (box, info);
 }
 
+EggFlowBoxChild *
+egg_flow_box_get_child_at_index (EggFlowBox *box,
+                                 gint        index_)
+{
+  EggFlowBoxPrivate *priv;
+  GSequenceIter *iter;
+
+  g_return_val_if_fail (EGG_IS_FLOW_BOX (box), NULL);
+
+  priv = egg_flow_box_get_instance_private (box);
+
+  iter = g_sequence_get_iter_at_pos (priv->children, index_);
+  if (iter)
+    return g_sequence_get (iter);
+
+  return NULL;
+}
+
diff --git a/egg-flow-box.h b/egg-flow-box.h
index 2eb10dd..7899085 100644
--- a/egg-flow-box.h
+++ b/egg-flow-box.h
@@ -117,6 +117,7 @@ struct _EggFlowBoxChildClass
 GType                 egg_flow_box_child_get_type            (void) G_GNUC_CONST;
 GtkWidget*            egg_flow_box_child_new                 (void);
 gint                  egg_flow_box_child_get_index           (EggFlowBoxChild *child);
+gboolean              egg_flow_box_child_is_selected         (EggFlowBoxChild *child);
 void                  egg_flow_box_child_changed             (EggFlowBoxChild *child);
 
 
@@ -156,6 +157,8 @@ void                  egg_flow_box_set_activate_on_single_click (EggFlowBox
 void                  egg_flow_box_insert                       (EggFlowBox        *box,
                                                                  GtkWidget         *child,
                                                                  gint               position);
+EggFlowBoxChild      *egg_flow_box_get_child_at_index           (EggFlowBox        *box,
+                                                                 gint               index_);
 
 GList                *egg_flow_box_get_selected_children        (EggFlowBox        *box);
 void                  egg_flow_box_selected_foreach             (EggFlowBox        *box,
@@ -167,8 +170,6 @@ void                  egg_flow_box_unselect_child               (EggFlowBox
                                                                  EggFlowBoxChild   *child);
 void                  egg_flow_box_select_all                   (EggFlowBox        *box);
 void                  egg_flow_box_unselect_all                 (EggFlowBox        *box);
-gboolean              egg_flow_box_is_child_selected            (EggFlowBox        *box,
-                                                                 EggFlowBoxChild   *child);
 GtkSelectionMode      egg_flow_box_get_selection_mode           (EggFlowBox        *box);
 void                  egg_flow_box_set_selection_mode           (EggFlowBox        *box,
                                                                  GtkSelectionMode   mode);