[gnome-games/sudoku-tube] Calculate the difficulty only once

[Zhang Sen <zhangsen src gnome org>]

commit a6e7551b35bc4a1e62558407da76777cbef5a0d4
Author: Zhang Sen <zh jesse gmail com>
Date:   Tue Jul 21 17:05:43 2009 +0800

    Calculate the difficulty only once

 gnome-sudoku/src/lib/main.py |   18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)
---
diff --git a/gnome-sudoku/src/lib/main.py b/gnome-sudoku/src/lib/main.py
index 049462f..73760fa 100644
--- a/gnome-sudoku/src/lib/main.py
+++ b/gnome-sudoku/src/lib/main.py
@@ -158,9 +158,15 @@ class UI (gconf_wrapper.GConfWrapper):
         """Properly do the setup after entering game
 
         Like show highlight, update hints, start timer, etc."""
-        self.timer.start_timing()
-        self.update_statusbar()
+        self._calc_difficulty()
         self.setup_toggles()
+        self.update_statusbar()
+
+        self.timer.start_timing()
+
+    def _calc_difficulty(self):
+        puzzle = self._main_model.grid.virgin.to_string()
+        self._difficulty = self.sudoku_maker.get_difficulty(puzzle)
 
     def _run_background_generator (self):
         """Generate puzzles in background"""
@@ -527,7 +533,7 @@ class UI (gconf_wrapper.GConfWrapper):
             self.set_statusbar_value(" ")
             return True
 
-        puzzle_diff = self._get_difficulty()
+        puzzle_diff = self._difficulty
         tot_string = _("Playing %(difficulty)s puzzle.") % {'difficulty':puzzle_diff.value_string()}
         tot_string += " " + "(%1.2f)" % puzzle_diff.value
 
@@ -537,10 +543,6 @@ class UI (gconf_wrapper.GConfWrapper):
     def toggle_highlight_cb (self, widg):
         self._main_grid_vew.toggle_highlight(widg.get_active())
 
-    def _get_difficulty(self):
-        puzzle = self._main_model.grid.virgin.to_string()
-        return self.sudoku_maker.get_difficulty(puzzle)
-
     def show_info_cb (self, *args):
         if not self._main_model.grid:
             dialog_extras.show_message(parent = self.w,
@@ -548,7 +550,7 @@ class UI (gconf_wrapper.GConfWrapper):
                                        label = _("There is no current puzzle.")
                                        )
             return
-        diff = self._get_difficulty()
+        diff = self._difficulty
         information = _("Calculated difficulty: ")
         information += diff.value_string()
         information += " (%1.2f)" % diff.value