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| """Support for ActiveX control hosting in Pythonwin. | |
| """ | |
| import win32ui | |
| import win32uiole | |
| from . import window | |
| # XXX - we are still "classic style" classes in py2x, so we need can't yet | |
| # use 'type()' everywhere - revisit soon, as py2x will move to new-style too... | |
| try: | |
| from types import ClassType as new_type | |
| except ImportError: | |
| new_type = type # py3k | |
| class Control(window.Wnd): | |
| """An ActiveX control base class. A new class must be derived from both | |
| this class and the Events class. See the demos for more details. | |
| """ | |
| def __init__(self): | |
| self.__dict__["_dispobj_"] = None | |
| window.Wnd.__init__(self) | |
| def _GetControlCLSID(self): | |
| return self.CLSID | |
| def _GetDispatchClass(self): | |
| return self.default_interface | |
| def _GetEventMap(self): | |
| return self.default_source._dispid_to_func_ | |
| def CreateControl(self, windowTitle, style, rect, parent, id, lic_string=None): | |
| clsid = str(self._GetControlCLSID()) | |
| self.__dict__["_obj_"] = win32ui.CreateControl( | |
| clsid, windowTitle, style, rect, parent, id, None, False, lic_string | |
| ) | |
| klass = self._GetDispatchClass() | |
| dispobj = klass(win32uiole.GetIDispatchForWindow(self._obj_)) | |
| self.HookOleEvents() | |
| self.__dict__["_dispobj_"] = dispobj | |
| def HookOleEvents(self): | |
| dict = self._GetEventMap() | |
| for dispid, methodName in dict.items(): | |
| if hasattr(self, methodName): | |
| self._obj_.HookOleEvent(getattr(self, methodName), dispid) | |
| def __getattr__(self, attr): | |
| # Delegate attributes to the windows and the Dispatch object for this class | |
| try: | |
| return window.Wnd.__getattr__(self, attr) | |
| except AttributeError: | |
| pass | |
| return getattr(self._dispobj_, attr) | |
| def __setattr__(self, attr, value): | |
| if hasattr(self.__dict__, attr): | |
| self.__dict__[attr] = value | |
| return | |
| try: | |
| if self._dispobj_: | |
| self._dispobj_.__setattr__(attr, value) | |
| return | |
| except AttributeError: | |
| pass | |
| self.__dict__[attr] = value | |
| def MakeControlClass(controlClass, name=None): | |
| """Given a CoClass in a generated .py file, this function will return a Class | |
| object which can be used as an OCX control. | |
| This function is used when you do not want to handle any events from the OCX | |
| control. If you need events, then you should derive a class from both the | |
| activex.Control class and the CoClass | |
| """ | |
| if name is None: | |
| name = controlClass.__name__ | |
| return new_type("OCX" + name, (Control, controlClass), {}) | |
| def MakeControlInstance(controlClass, name=None): | |
| """As for MakeControlClass(), but returns an instance of the class.""" | |
| return MakeControlClass(controlClass, name)() | |