/usr/lib/python2.7/dist-packages/PyQt4/uic/Loader/qobjectcreator.py is in python-qt4 4.11.4+dfsg-2+b1.
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##
## Copyright (C) 2015 Riverbank Computing Limited.
## Copyright (C) 2006 Thorsten Marek.
## All right reserved.
##
## This file is part of PyQt.
##
## You may use this file under the terms of the GPL v2 or the revised BSD
## license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of the Riverbank Computing Limited nor the names
## of its contributors may be used to endorse or promote products
## derived from this software without specific prior written
## permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
##
#############################################################################
import sys
from PyQt4 import QtGui
class _QtGuiWrapper(object):
def search(cls):
return getattr(QtGui, cls, None)
search = staticmethod(search)
class _ModuleWrapper(object):
def __init__(self, moduleName, classes):
self._moduleName = moduleName
self._module = None
self._classes = classes
def search(self, cls):
if cls in self._classes:
if self._module is None:
self._module = __import__(self._moduleName, {}, {}, self._classes)
# Allow for namespaces.
obj = self._module
for attr in cls.split('.'):
obj = getattr(obj, attr)
return obj
else:
return None
class _CustomWidgetLoader(object):
def __init__(self, package):
# should it stay this way?
if '.' not in sys.path:
sys.path.append('.')
self._widgets = {}
self._modules = {}
self._package = package
def addCustomWidget(self, widgetClass, baseClass, module):
assert widgetClass not in self._widgets
self._widgets[widgetClass] = module
def search(self, cls):
module_name = self._widgets.get(cls)
if module_name is None:
return None
module = self._modules.get(module_name)
if module is None:
if module_name.startswith('.'):
if self._package == '':
raise ImportError(
"relative import of %s without base package specified" % module_name)
if self._package.startswith('.'):
raise ImportError(
"base package %s is relative" % self._package)
mname = self._package + module_name
else:
mname = module_name
try:
module = __import__(mname, {}, {}, (cls,))
except ValueError:
# Raise a more helpful exception.
raise ImportError("unable to import module %s" % mname)
self._modules[module_name] = module
return getattr(module, cls)
class LoaderCreatorPolicy(object):
def __init__(self, package):
self._package = package
def createQtGuiWrapper(self):
return _QtGuiWrapper
def createModuleWrapper(self, moduleName, classes):
return _ModuleWrapper(moduleName, classes)
def createCustomWidgetLoader(self):
return _CustomWidgetLoader(self._package)
def instantiate(self, clsObject, objectName, ctor_args, is_attribute=True):
return clsObject(*ctor_args)
def invoke(self, rname, method, args):
return method(*args)
def getSlot(self, object, slotname):
# Rename slots that correspond to Python keyword arguments.
if slotname == 'raise':
slotname += '_'
return getattr(object, slotname)
def asString(self, s):
return s
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