Fix invert colors tool - SL #3618 & SL #4674

Signed-off-by: Gonzalo Odiard <gonzalo@laptop.org>

2 files changed, 7 insertions, 6 deletions

diff --git a/Area.py b/Area.py
index 06f744f..52d155d 100644
--- a/Area.py
+++ b/Area.py
@@ -1198,11 +1198,10 @@ class Area(Gtk.DrawingArea):
 
         self._do_process(widget, proc_grayscale)
 
-    def invert_colors(self, widget):
+    def invert_colors(self):
         """Apply invert effect.
 
             @param  self -- the Area object (GtkDrawingArea)
-            @param  widget -- the Area object (GtkDrawingArea)
 
         """
 
@@ -1232,15 +1231,17 @@ class Area(Gtk.DrawingArea):
             # create a updated drawing_canvas
             width = self.drawing_canvas.get_width()
             height = self.drawing_canvas.get_height()
-            self.drawing_canvas = cairo.ImageSurface.create_for_data(
+            self.drawing_canvas_data = cairo.ImageSurface.create_for_data(
                 new_array, cairo.FORMAT_ARGB32, width, height)
 
+            self.setup(width, height)
             self.queue_draw()
             self.enable_undo()
-            self.get_window().set_cursor(old_cursor)
+            self.get_toplevel().get_window().set_cursor(old_cursor)
 
         old_cursor = self.get_window().get_cursor()
-        self.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.WATCH))
+        self.get_toplevel().get_window().set_cursor(
+            Gdk.Cursor.new(Gdk.CursorType.WATCH))
         GObject.idle_add(internal_invert, self, old_cursor)
 
     def mirror(self, widget, horizontal=True):
diff --git a/toolbox.py b/toolbox.py
index b4e624e..ce6f8c6 100644
--- a/toolbox.py
+++ b/toolbox.py
@@ -814,4 +814,4 @@ class ImageToolbar(Gtk.Toolbar):
         self.properties['name'] = self._EFFECT_RAINBOW_NAME
 
     def invert_colors(self, widget):
-        self._activity.area.invert_colors(widget)
+        self._activity.area.invert_colors()