[gnote] Sort notes and notebooks case-insensitively and internationally

[Aurimas Černius <aurimasc src gnome org>]

commit 7cfc4624eb68551fcc93459144572ad1c8e17cb4
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sat May 18 23:45:34 2013 +0300

    Sort notes and notebooks case-insensitively and internationally
    
    Use Glib::ustring::compare() for comparing lowercased titles.
    Fixes Bug 700438.

 src/notebooks/notebookmanager.cpp |    4 +---
 src/searchnoteswidget.cpp         |    6 +++---
 2 files changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/src/notebooks/notebookmanager.cpp b/src/notebooks/notebookmanager.cpp
index 6773c95..69ef47d 100644
--- a/src/notebooks/notebookmanager.cpp
+++ b/src/notebooks/notebookmanager.cpp
@@ -441,9 +441,7 @@ namespace gnote {
       a_name = a_name.lowercase();
       Glib::ustring b_name(notebook_b->get_name());
       b_name = b_name.lowercase();
-      return a_name== b_name
-          ? 0
-          : a_name<b_name ? -1 : 1;
+      return a_name.compare(b_name);
     }
     
     /// <summary>
diff --git a/src/searchnoteswidget.cpp b/src/searchnoteswidget.cpp
index 85b8e2b..640d7fe 100644
--- a/src/searchnoteswidget.cpp
+++ b/src/searchnoteswidget.cpp
@@ -626,14 +626,14 @@ bool SearchNotesWidget::filter_notes(const Gtk::TreeIter & iter)
 
 int SearchNotesWidget::compare_titles(const Gtk::TreeIter & a, const Gtk::TreeIter & b)
 {
-  std::string title_a = (*a)[m_column_types.title];
-  std::string title_b = (*b)[m_column_types.title];
+  Glib::ustring title_a = std::string((*a)[m_column_types.title]);
+  Glib::ustring title_b = std::string((*b)[m_column_types.title]);
 
   if(title_a.empty() || title_b.empty()) {
     return -1;
   }
 
-  return title_a.compare(title_b);
+  return title_a.lowercase().compare(title_b.lowercase());
 }
 
 int SearchNotesWidget::compare_dates(const Gtk::TreeIter & a, const Gtk::TreeIter & b)