[frogr] Compare properties when reordering in a case insensitive way

[Mario Sanchez Prada <msanchez src gnome org>]

commit ec626a0ad61586f12be5df21a4e54539301b3656
Author: Mario Sanchez Prada <msanchez igalia com>
Date:   Wed May 25 18:45:14 2011 +0200

    Compare properties when reordering in a case insensitive way

 src/frogr-main-view-model.c |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/src/frogr-main-view-model.c b/src/frogr-main-view-model.c
index 17a8ca8..43bfbe2 100644
--- a/src/frogr-main-view-model.c
+++ b/src/frogr-main-view-model.c
@@ -99,7 +99,20 @@ _compare_pictures_by_property (FrogrPicture *p1, FrogrPicture *p2,
   else if (G_VALUE_HOLDS_LONG (&value1))
     result = g_value_get_long (&value1) - g_value_get_long (&value2);
   else if (G_VALUE_HOLDS_STRING (&value1))
-    result = g_strcmp0 (g_value_get_string (&value1), g_value_get_string (&value2));
+    {
+      gchar *str1 = NULL;
+      gchar *str2 = NULL;
+
+      /* Comparison of strings require some additional work to take
+         into account the different rules for each locale */
+      str1 = g_utf8_casefold (g_value_get_string (&value1), -1);
+      str2 = g_utf8_casefold (g_value_get_string (&value2), -1);
+
+      result = g_utf8_collate (str1, str2);
+
+      g_free (str1);
+      g_free (str2);
+    }
   else
     g_warning ("Unsupported type for property used for sorting");