diff --git a/Window.py b/Window.py
index 8048c6e..e22955a 100644
--- a/Window.py
+++ b/Window.py
@@ -23,9 +23,11 @@ class Window:
         self.toolbar.set_style(gtk.TOOLBAR_BOTH)
         self.select_button = gtk.ToggleToolButton()
         self.select_button.set_label('Select')
+        self.select_button.connect('toggled', self.toggled_event)
         self.toolbar.insert(self.select_button, -1)
         self.line_button = gtk.ToggleToolButton()
         self.line_button.set_label('Line')
+        self.line_button.connect('toggled', self.toggled_event)
         self.toolbar.insert(self.line_button, -1)
 
         self.statusbar = gtk.Statusbar()
@@ -48,3 +50,12 @@ class Window:
         if event.keyval == gtk.gdk.keyval_from_name("Escape"):
             gtk.main_quit()
         return False
+
+    def toggled_event(self, ttb):
+#        if not ttb.get_active():
+#            ttb.set_active(True)
+#        elif ttb == self.select_button:
+#            self.line_button.set_active(False)
+#        elif ttb == self.line_button:
+#            self.select_button.set_active(False)
+        return True