Source code for camelot.core.exception
# ============================================================================
#
# Copyright (C) 2007-2011 Conceptive Engineering bvba. All rights reserved.
# www.conceptive.be / project-camelot@conceptive.be
#
# This file is part of the Camelot Library.
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# and appearing in the file license.txt included in the packaging of
# this file. Please review this information to ensure GNU
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# ============================================================================
"""Camelot specific subclasses of Exception
"""
from camelot.core.utils import ugettext_lazy as _
[docs]class UserException(Exception):
"""
Raise this exception to inform the user he did something wrong, without
showing a stack trace or other internals. Raising this exception won't
log stack traces either, as the occurance of this exception is considered
a non-event for the developer::
from camelot.core.exception import UserException
from camelot.core.utils import ugettext
if not dvd.empty:
raise UserException( ugettext('Could not burn movie to non empty DVD'),
resolution = ugettext('Insert an empty DVD and retry') )
Will popup a gentle dialog for the user :
.. image:: /_static/controls/user_exception.png
"""
def __init__(self, text, title=_('Could not proceed'), icon=None, resolution=None, detail=None):
"""
:param title: the title of the dialog box that informs the user
:param text: the top text in the dialog
:param resolution: what the user should do to solve the issue
:param detail: a detailed description of what went wrong
"""
super(UserException, self).__init__(text)
self.title = title
self.text = text
self.icon = icon
self.resolution = resolution
self.detail = detail
[docs]class GuiException(Exception):
"""
This exception is raised by the Action mechanism when the action requested
something from the GUI but an unexpected event occured. The action can
choose to ignore it or handle it.
"""
pass
[docs]class CancelRequest(Exception):
"""
This exception is raised by the GUI when the user wants to cancel an action,
this exception is then past to the *model thread*
"""
pass