1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
import sys
try:
set()
except NameError:
from sets import Set as set
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 = set(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):
# should it stay this way?
sys.path.append(".")
self._widgets = {}
self._modules = {}
def addCustomWidget(self, widgetClass, baseClass, module):
assert widgetClass not in self._widgets
self._widgets[widgetClass] = module
def search(self, cls):
try:
module = self._widgets[cls]
if module not in self._modules:
self._modules[module] = __import__(module, {}, {}, (cls,))
return getattr(self._modules[module], cls)
except KeyError:
pass
return None
class LoaderCreatorPolicy(object):
def createQtGuiWrapper(self):
return _QtGuiWrapper
def createModuleWrapper(self, moduleName, classes):
return _ModuleWrapper(moduleName, classes)
def createCustomWidgetLoader(self):
return _CustomWidgetLoader()
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)
|
