@@ -23,6 +23,7 @@ __author__ = "Jose Fonseca"

 __version__ = "0.3"

+import os

 import sys

 import subprocess

 import math

@@ -893,11 +894,15 @@ class DotWidget(gtk.DrawingArea):

             self.set_xdotcode(xdotcode)

         except GraphParseError, e:

             msg = "Could not parse %s, is it a valid dot file?" % filename

-            error_dlg = gtk.MessageDialog(type=gtk.MESSAGE_ERROR,

+            error_dlg = gtk.MessageDialog(title="Dot Viewer",

+                                          type=gtk.MESSAGE_ERROR,

                                           message_format=msg,

                                           buttons=gtk.BUTTONS_OK)

             error_dlg.run()

             error_dlg.destroy()

+            return False

+        else:

+            return True

     def set_xdotcode(self, xdotcode):

         #print xdotcode

@@ -1125,7 +1130,7 @@ class DotWindow(gtk.Window):

         window = self

-        window.set_title('Dot')

+        window.set_title('Dot Viewer')

         window.set_default_size(512, 512)

         vbox = gtk.VBox()

         window.add(vbox)

@@ -1169,7 +1174,8 @@ class DotWindow(gtk.Window):

         self.show_all()

     def set_dotcode(self, dotcode, filename='<stdin>'):

-        self.widget.set_dotcode(dotcode, filename)

+        if self.widget.set_dotcode(dotcode, filename):

+            self.set_title(os.path.basename(filename) + ' - Dot Viewer')

     def open_file(self, filename):

         try: