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ClutterListModel: Implement get_n_rows for improved performance

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The default implementation in ClutterModel iterates through all
the elements.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2511
This commit is contained in:
Tomeu Vizoso
2011-01-10 19:13:03 +01:00
committed by Emmanuele Bassi
parent 850f956d4e
commit 3625adb9d8
2 changed files with 41 additions and 28 deletions
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13
clutter/clutter-list-model.c
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@ -621,6 +621,18 @@ clutter_list_model_resort (ClutterModel *model,
&sort_closure);
}
static guint
clutter_list_model_get_n_rows (ClutterModel *model)
{
ClutterListModel *list_model = CLUTTER_LIST_MODEL (model);
/* short-circuit in case we don't have a filter in place */
if (!clutter_model_get_filter_set (model))
return g_sequence_get_length (list_model->priv->sequence);
return CLUTTER_MODEL_CLASS (clutter_list_model_parent_class)->get_n_rows (model);
}
static void
clutter_list_model_row_removed (ClutterModel *model,
ClutterModelIter *iter)
@ -686,6 +698,7 @@ clutter_list_model_class_init (ClutterListModelClass *klass)
model_class->insert_row = clutter_list_model_insert_row;
model_class->remove_row = clutter_list_model_remove_row;
model_class->resort = clutter_list_model_resort;
model_class->get_n_rows = clutter_list_model_get_n_rows;
model_class->row_removed = clutter_list_model_row_removed;
}