Viewing file:  LibGladeApplication.py (1.89 KB) -rw-r--r--
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"""This module contains the LibGladeApplication class."""
import signal
import gtk
from gtk import glade
from GtkAttributesFacade import GtkAttributesFacade
class LibGladeApplication:
"""This is the base class for applications that use Glade.
The following attributes are used:
xml - This is an instance of glade.XML which encapsulates the Glade GUI.
The following private variables are used:
_signalsAreDone - The UNIX signal handlers only have to be set once.
"""
_signalsAreDone = False
def __init__(self, gladeFile):
"""Setup the appropriate signal handlers and call setHandlers."""
if not self._signalsAreDone:
self._signalsAreDone = True
signal.signal(signal.SIGINT, signal.SIG_DFL)
self.xml = glade.XML(gladeFile)
self.setHandlers()
def setHandlers(self):
"""Automatically autoconnect all of the handlers.
Any methods (even in subclasses) that start with "on_" will be treated
as a handler that is automatically connected to by
xml.signal_autoconnect.
"""
handlers = {}
for i in dir(self):
if i.startswith("on_"):
handlers[i] = getattr(self, i)
self.xml.signal_autoconnect(handlers)
def __getattr__(self, name):
"""If self doesn't have the attribute, check self.xml.
If self.xml does have the attribute, wrap it in a GtkAttributesFacade
instance, cache it in self, and return it.
"""
obj = self.xml.get_widget(name)
if obj:
obj = GtkAttributesFacade(obj)
setattr(self, name, obj)
return obj
raise AttributeError("%s instance has no attribute '%s'" %
(self.__class__.__name__, name))
def on_quit_activate(self, *args):
"""Ignore args and call gtk.mainquit()."""
gtk.main_quit()
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