From d96d19085570856ca1e2549ce77f08afcdf04f7b Mon Sep 17 00:00:00 2001
From: Ignacio Rodriguez <ignacio@sugarlabs.org>
Date: Thu, 12 Dec 2013 20:50:19 +0000
Subject: Corrections

---
diff --git a/Area.py b/Area.py
index 68c0e1c..f4c05b6 100644
--- a/Area.py
+++ b/Area.py
@@ -1198,7 +1198,7 @@ class Area(Gtk.DrawingArea):
 
         self._do_process(widget, proc_grayscale)
 
-    def invert_colors(self, widget, old_cursor, source_id, window):
+    def invert_colors(self, widget, old_cursor, window):
         """Apply invert effect.
 
             @param  self -- the Area object (GtkDrawingArea)
@@ -1206,7 +1206,7 @@ class Area(Gtk.DrawingArea):
 
         """
 
-        def internal_invert(self, old_cursor, source_id, window):
+        def internal_invert(self, old_cursor, window):
             # load a array with the surface data
             for array_type in ['H', 'I', 'L']:
                 pixels = array.array(array_type)
@@ -1240,8 +1240,7 @@ class Area(Gtk.DrawingArea):
             GObject.source_remove(source_id)
             window.set_cursor(old_cursor)
 
-        GObject.idle_add(internal_invert, self, old_cursor,
-            source_id, window)
+        GObject.idle_add(internal_invert, self, old_cursor, window)
 
     def mirror(self, widget, horizontal=True):
         """Apply mirror horizontal/vertical effect.
diff --git a/toolbox.py b/toolbox.py
index 0646892..acd770b 100644
--- a/toolbox.py
+++ b/toolbox.py
@@ -816,10 +816,8 @@ class ImageToolbar(Gtk.Toolbar):
     def invert_colors(self, widget):
         window = self.get_window()
         old_cursor = window.get_cursor()
-        source_id = GObject.idle_add(self.set_watch_cursor, window)
-        self._activity.area.invert_colors(widget, old_cursor,
-            source_id, window)
+        GObject.idle_add(self.set_watch_cursor, window)
+        self._activity.area.invert_colors(widget, old_cursor, window)
 
     def set_watch_cursor(self, window):
         window.set_cursor(Gdk.Cursor.new(Gdk.CursorType.WATCH))
-        return True
--
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