1 def connectSlotsByName(container, callobj):
 2  """
 3  A version of connectSlotsByName() that uses a potentially different object
 4  to search for widget instances and to search for callbacks. This is more
 5  flexible than the version that is provided with Qt because it allows you to
 6  bind to callbacks on any object, not just on the widget container class
 7  itself. You can also call this with a number of combinations of container
 8  and callback objects.
 9 
 10  * 'container': an instance whose attributes will be inspected to find
 11  Qt widgets.
 12 
 13  * 'callobj': an object which will be inspect for appropriately named methods
 14  to be used as callbacks for widgets on 'container'.
 15 
 16  See QtCore.QMetaObject.connectSlotsByName() for some background info.
 17  """
 18  logging.debug('connectSlotsByName container=%s callobj=%s' % (container, callobj))
 19 
 20  for name in dir(callobj):
 21  cb = getattr(callobj, name)
 22  if not callable(cb):
 23  continue
 24 
 25  mo = re.match('on_(.+)_([^_]+)$', name)
 26  if not mo:
 27  continue
 28 
 29  nwidget, nsignal = mo.groups()
 30  try:
 31  widget = getattr(container, nwidget)
 32  except AttributeError:
 33  logging.debug(" Widget '%s' not found; method '%s' will not be bound." %
 34  (nwidget, name))
 35  continue
 36 
 37  # Support the QtCore.pyqtSignature decorator.
 38  signature = '%s(%s)' % (nsignal, getattr(cb, '_signature', ''))
 39 
 40  logging.debug(' Connecting: %s to %s: %s' % (widget, signature, cb))
 41  QObject.connect(widget, SIGNAL(signature), cb)