[Pybridge-commits] SF.net SVN: pybridge: [459] trunk/pybridge/pybridge/ui

[<umg...@us...>]

Revision: 459
          http://svn.sourceforge.net/pybridge/?rev=459&view=rev
Author:   umgangee
Date:     2007-07-04 07:34:35 -0700 (Wed, 04 Jul 2007)

Log Message:
-----------
Use sys.excepthook to provide a GtkDialog when an unhandled exception is raised, alerting user to the problem and prompting them to take action.

Modified Paths:
--------------
    trunk/pybridge/pybridge/ui/__init__.py

Added Paths:
-----------
    trunk/pybridge/pybridge/ui/excepthook.py

Modified: trunk/pybridge/pybridge/ui/__init__.py
===================================================================
--- trunk/pybridge/pybridge/ui/__init__.py	2007-06-25 16:36:32 UTC (rev 458)
+++ trunk/pybridge/pybridge/ui/__init__.py	2007-07-04 14:34:35 UTC (rev 459)
@@ -37,6 +37,11 @@
 def run():
     """Starts the PyBridge client UI."""
 
+    # Set exception hook to display error dialog.
+    import sys
+    from excepthook import excepthook
+    sys.excepthook = excepthook
+
     from manager import wm
     from window_main import WindowMain
     wm.open(WindowMain)

Added: trunk/pybridge/pybridge/ui/excepthook.py
===================================================================
--- trunk/pybridge/pybridge/ui/excepthook.py	                        (rev 0)
+++ trunk/pybridge/pybridge/ui/excepthook.py	2007-07-04 14:34:35 UTC (rev 459)
@@ -0,0 +1,63 @@
+# PyBridge -- online contract bridge made easy.
+# Copyright (C) 2004-2007 PyBridge Project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+"""
+Captures exceptions and displays them to user in a GTK dialog,
+instead of the console which may not be visible.
+
+Source: http://faq.pygtk.org/index.py?req=show&file=faq20.010.htp
+"""
+
+import gtk
+import traceback
+from StringIO import StringIO
+
+
+def excepthook(type, value, tb):
+    dialog = gtk.MessageDialog(parent=None, flags=gtk.DIALOG_MODAL,
+                           buttons=gtk.BUTTONS_CLOSE, type=gtk.MESSAGE_WARNING)
+    dialog.set_title(_('Program error'))
+    dialog.set_markup(_('PyBridge detected an unexpected program error. You should close and restart PyBridge.'))
+    dialog.format_secondary_markup(_('If you continue to experience this error, please submit a bug report, attaching the following error trace.'))
+
+    # Set up display of traceback.
+    textview = gtk.TextView(); textview.show()
+    textview.set_editable(False)
+    sw = gtk.ScrolledWindow(); sw.show()
+    sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
+    sw.add(textview)
+    frame = gtk.Frame();
+    frame.set_shadow_type(gtk.SHADOW_IN)
+    frame.add(sw)
+    frame.set_border_width(6)
+    dialog.vbox.add(frame)
+    textbuffer = textview.get_buffer()
+    trace = StringIO()
+    traceback.print_exception(type, value, tb, None, trace)
+    textbuffer.set_text(trace.getvalue())
+    textview.set_size_request(320, 240)
+
+    dialog.details = frame
+    dialog.details.show()
+
+    def dialog_response_cb(dialog, response_id):
+        dialog.destroy()
+
+    dialog.connect('response', dialog_response_cb)
+    dialog.run()
+


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