[gthumb] simplified gth_file_store_reorder

[Paolo Bacchilega <paobac src gnome org>]

commit ea90260453a2df94cd9bbcd615aba2d8cdf9799a
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Sep 17 18:37:21 2016 +0200

    simplified gth_file_store_reorder

 gthumb/gth-file-store.c |   38 ++++----------------------------------
 1 files changed, 4 insertions(+), 34 deletions(-)
---
diff --git a/gthumb/gth-file-store.c b/gthumb/gth-file-store.c
index dafab34..b84c94f 100644
--- a/gthumb/gth-file-store.c
+++ b/gthumb/gth-file-store.c
@@ -1627,50 +1627,20 @@ gth_file_store_clear (GthFileStore *file_store)
 }
 
 
-static int
-reorder_sort_func (gconstpointer a,
-                  gconstpointer b,
-                  gpointer      user_data)
-{
-       GHashTable *new_positions = user_data;
-       int         apos = GPOINTER_TO_INT (g_hash_table_lookup (new_positions, * (GthFileRow **) a));
-       int         bpos = GPOINTER_TO_INT (g_hash_table_lookup (new_positions, * (GthFileRow **) b));
-
-       if (apos < bpos)
-               return -1;
-       if (apos > bpos)
-               return 1;
-       return 0;
-}
-
-
 void
 gth_file_store_reorder (GthFileStore *file_store,
                        int          *new_order)
 {
-       int         *order;
-       GHashTable  *new_positions;
-       int          i;
-
-       order = g_new (int, file_store->priv->num_rows);
-       for (i = 0; i < file_store->priv->num_rows; i++)
-               order[new_order[i]] = i;
+       int i;
 
-       new_positions = g_hash_table_new (g_direct_hash, g_direct_equal);
        for (i = 0; i < file_store->priv->num_rows; i++)
-               g_hash_table_insert (new_positions, file_store->priv->rows[i], GINT_TO_POINTER (order[i]));
+               file_store->priv->rows[new_order[i]]->pos = i;
 
        g_qsort_with_data (file_store->priv->rows,
                           file_store->priv->num_rows,
                           (gsize) sizeof (GthFileRow *),
-                          reorder_sort_func,
-                          new_positions);
-
-       for (i = 0; i < file_store->priv->num_rows; i++)
-               file_store->priv->rows[i]->pos = i;
+                          compare_by_pos,
+                          NULL);
 
        gtk_tree_model_rows_reordered (GTK_TREE_MODEL (file_store), NULL, NULL, new_order);
-
-       g_hash_table_destroy (new_positions);
-       g_free (order);
 }